TW201011731A - Image correction data generating system, image correction data generating method, image correction data generating program and image correction circuit - Google Patents

Image correction data generating system, image correction data generating method, image correction data generating program and image correction circuit Download PDF

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TW201011731A
TW201011731A TW98125754A TW98125754A TW201011731A TW 201011731 A TW201011731 A TW 201011731A TW 98125754 A TW98125754 A TW 98125754A TW 98125754 A TW98125754 A TW 98125754A TW 201011731 A TW201011731 A TW 201011731A
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image
data
image correction
signal
unit
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TW98125754A
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Chinese (zh)
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TWI485695B (en
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Shigeharu Ishikawa
Akio Ohta
Takashi Sakamoto
Hiroshi Murase
Tetsuhiko Shimpo
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Iix Inc
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/02—Diagnosis, testing or measuring for television systems or their details for colour television signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The image correction data generating system of this invention has a signal generating part, a recording part and a controlling part. The signal generating part is to output image signals to a display panel. The recording part is to record the output images shown by the display panel. The controlling part is connected to the signal generating part and the recording part above. The controlling part has an indicating part, an image capturing part, a band pass filter part and a corrected data generating part. The indicating part indicates the general signal values supplied by the signal generating part to the display panel. The image capturing part gains output image data from the recording part. The band pass filter part carry out band pass filtering with output image data to gain band pass data. The data generating part outputs image correction tables corresponding to the band pass data.

Description

201011731 六、發明說明： 【發明所屬之技術領域】 本發明係關於-财效率地抑繼示不均的影雜料產生系統、 影像修正資料產生方法、影像修正資料產生程式及影像修正迴路。 【先前技術】 現今，液晶面板等顯示器之製造線，係為了可實現均等的品質而 構建。但是，即使在如此的製造線中，也會在製造時，在個別的顯示 器上產生差異性。因此’為了調整顯示器俾於輸出更佳的影像，而進 行了各式各樣的檢討(例如，參照專利文獻υ。該專利文獻丨中所記 载的技術，係藉由晝質調整裝置，將調整對象顯示器之晝質調整成近 似於目標（或基準)顯示器之畫質。為此，晝質調整裝置之控制部具備： 目標顯示器；以及調整對象顯示器之特性資料的資料記憶部。控制部， 係根據資料記憶部之資料而算出伽瑪白色平衡(Gan血awhitebalance) 轉換資料，且使該轉換資料保持於伽瑪調整器。然後，控制部，係使 用資料記憶部之資料及伽瑪白色平衡轉換資料來算出色彩管理設定輪 廓資料(color management set profile data) ’且使該輪廓資料保持 於色彩管理調整器。 又，顯示器有時會發生顯示不均的現象。此種的顯示不均，係依 複數個像素(pixel)之亮度不均而產生。顯示不均係包含亮度不均及顏 色不均。又，亮度不均及顏色不均，係有某—方發生的情況及雙方 同時發生的情況。因此，亦有人檢討針對在修正液晶面板之顏色不均 的同時，去除因積分器（integrator)光學系所引起的亮度不均，以獲 201011731 的同時，去除因積分器（integrator)光學系所引起的亮度不均，以獲 得高品質之投射影像畫質用的投影機（例如，參照專利文獻2)。該專 , 利文獻2中所記載的技術，係在先前方法所使用之一般的顏色不均測 . 定用照相機所得到顏色不均修正LUT資料中，加算上使用明暗 (shading)為已知之亮度不均測定用照相機所產生的亮度不均修正 LUT資料。藉此，產生按照輸入影像信號之照度等級修正之液晶面板 水平/垂直方向之二維的顏色不均及亮度不均的顯示不均修正LUT資 Ο 料。使用記憶於液晶投影機裝置内之LUT的顯示不均修正資料，來修 正二維之顏色不均及亮度不均並轉換成均等的影像。 [先前技術文獻] [專利文獻] [專利文獻1]日本特許第4109702號公報 [專利文獻2]日本特開2006-153914號公報 【發明内容】 (發明所欲解決之問題） 在對顯示器輸入完全平坦的影像(全像素為同一值)之情況時理 想上是輸Hi完全平坦的。但是’實際上雜相的亮度有些微差 異，此差異將會變細示不均而呈邮來。此鋪示不均會在液晶面 板上發生的原因’係取決於單元間隙(cell卿)之不均、或背光源之 亮度分布。 而且，在-律去除掉此等顯示不均時，有時會發生不良情形。亦 5 201011731 即，起因於單70間隙之液晶本身的不均為1%以下，較多時也只有5% 左右’相對於此’背光源之周邊減光⑴她darkening)較多時則達go% 左右。在修正此種顯示不均時，由於無法將完全的白色〇嶋灰色)影 像之資料值’修正成更㈣亮，所m將完全自色雜之資料絲 正成負側。因而，在進行統-絲顯示不均祕正之情況時會受到 液晶面板之周邊減光的影響’使中心部附近的亮度降低。亦即，較多 時就是30%也會使面板之亮度降低。 又，在針對個別的顯示器進行修正時，期望能儘量有效率地修正。_ 本發明之目的録於触—财鱗地抑麵示不均的影像修正 資料產生系統、影像修正資料產生方法、影像修正資料產生程式及影 像修正迴路。 (解決問題之手段） 為了達成上述目的’本發明之第j態樣的影像修正資料產生系 統，係具備信號產生部、攝像部及_部。前述信號產生部，係將用 以輸出影像的信號供給至顯示面板。前述攝像部，係拍攝在前述顯示〇 面板中顯福輸㈣像。前雜卿，係連接於前述健產生部及前 述攝像部。前述控制部，係具備指示部、影像取得部、帶通滅波器 (bandpass fiiter)部及修正資料產生部。前述指示部，係對前述信 號產生部輸_示面板全面共通的錄值之縣指示。前述影像取得 部’係從前述攝像部取得輸出影像資料。前述帶通濾波器部係藉由 對前述輸出影像資料進行帶通據波(band卿fmering)而算出帶通 資料(bandpass data)。刚述修正資料產生部，係輸出對應於前述帶 201011731 通資料的影像修正表。 較佳為，前述指示部，係針對每—灰_顯示面板全面 部’軸每—娜得輪购 月η正資料產生部，係針對每—灰階輪出影像修正表。 本發明之第2紐的職修正_產生料，做用具備信號產 生部、攝舞及控御的影像修正雜產生纽，喊生影像修正資201011731 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a noise generating system, an image correcting data generating method, an image correcting data generating program, and an image correcting loop. [Prior Art] Nowadays, a manufacturing line of a display such as a liquid crystal panel is constructed in order to achieve uniform quality. However, even in such a manufacturing line, differences occur in individual displays at the time of manufacture. Therefore, in order to adjust the display and output a better image, various reviews have been made (for example, refer to the patent document υ. The technique described in the patent document is based on the enamel adjustment device. The quality of the adjustment target display is adjusted to approximate the image quality of the target (or reference) display. For this purpose, the control unit of the quality adjustment device includes: a target display; and a data storage unit for adjusting characteristic data of the target display. Calculate the gamma white balance conversion data according to the data of the data memory department, and keep the conversion data in the gamma adjuster. Then, the control unit uses the data memory unit and the gamma white balance. Convert the data to calculate the color management set profile data' and keep the contour data in the color management adjuster. In addition, the display may be unevenly displayed. This display is uneven. According to the uneven brightness of the plurality of pixels (pixel), the display unevenness includes uneven brightness and uneven color. Unevenness and uneven color are related to the occurrence of a certain party and the simultaneous occurrence of both parties. Therefore, some people have reviewed the removal of the optical system due to the integrator while correcting the color unevenness of the liquid crystal panel. The luminance is uneven, and the projector for removing the brightness unevenness caused by the integrator optical system to obtain a high-quality projection image quality is obtained while obtaining 201011731 (for example, refer to Patent Document 2). The technique described in the patent document 2 is based on the general color unevenness used in the previous method. In the color unevenness correction LUT data obtained by the camera, the shading is added to the known brightness. The LUT data is corrected by the brightness unevenness generated by the camera, thereby generating a display unevenness correction LUT of two-dimensional color unevenness and uneven brightness in the horizontal/vertical direction of the liquid crystal panel corrected according to the illumination level of the input image signal. The material is corrected by using the display unevenness correction data of the LUT stored in the liquid crystal projector device to correct the two-dimensional color unevenness and uneven brightness and convert it into [Patent Document] [Patent Document 1] Japanese Patent No. 4109702 [Patent Document 2] JP-A-2006-153914 (Summary of the Invention) When the input of the display is completely flat (the whole pixel is the same value), it is ideal to completely flatten the Hi. However, the brightness of the miscellaneous phase is slightly different, and the difference will be uneven. The reason why this unevenness will occur on the liquid crystal panel depends on the unevenness of the cell gap or the brightness distribution of the backlight. Moreover, when the law is removed, the display unevenness is removed. Sometimes bad things happen. Also 5 201011731 That is, the liquid crystal itself caused by the single 70 gap is not more than 1%, and when it is more than 5%, it is relative to the backlight of the backlight. (1) When she is darkening, it is up to go. % or so. When correcting such display unevenness, since the data value of the full white 〇嶋 gray image cannot be corrected to be more (four) bright, m will completely become the negative side of the data line. Therefore, when the uniformity of the display is uneven, the ambient light is affected by the dimming of the liquid crystal panel, and the brightness in the vicinity of the center portion is lowered. That is, more than 30% will also reduce the brightness of the panel. Moreover, when correcting for individual displays, it is desirable to be able to correct as efficiently as possible. _ The purpose of the present invention is to record an image correction system, an image correction data generation method, an image correction data generation program, and an image correction loop which are uneven in the touch-and-finance scale. (Means for Solving the Problem) In order to achieve the above object, the image correction data generating system of the jth aspect of the present invention includes a signal generating unit, an imaging unit, and a unit. The signal generating unit supplies a signal for outputting an image to the display panel. The imaging unit captures a (four) image in the display panel. The former mixed secretary is connected to the above-described health generating unit and the aforementioned imaging unit. The control unit includes an instruction unit, an image acquisition unit, a bandpass fiiter unit, and a correction data generation unit. The instruction unit is a county instruction for recording the value of the entire signal generation unit. The image acquisition unit is configured to acquire output image data from the imaging unit. The band pass filter unit calculates bandpass data by performing banding fmering on the output image data. The correction data generation unit outputs an image correction table corresponding to the above-mentioned data with 201011731. Preferably, the instruction unit is for each gray-display panel full-section axis---------------------------------------------------------- The second correction of the invention is based on the production of the information, and the use of the signal generation department, the dance and the control of the image correction miscellaneous generation, the shouting image correction

料的前述信號產生部，係制轉出影像的信號供給至顯示面板。前 述攝像部，條攝在前賴示面板情示輯岐像。前馳制部， 係連接於㈣賴產生輕前簡胸。前魅卿魏行如下作 業對別述域產生部輸出顯示面板全面共通的信號值之供給指示； 從前述攝_取得輸出雜龍；輸㈣像倾進行帶通 慮波而算ib帶通資料，以及輸出對應於祕帶❹料轉像修正表。 本發明之第3雜的雜修正迴路，係記制㈣整供給至顯示 面板雜正表。前麟絲正域對麟通資料而產 生。該帶通資料係藉由對根據供給至前述顯示面板全面之共通的信號 值而經顯示之輸出影像龍進行帶通驗所得。根雜述影像修正 表’對供給至前述顯示面板之影像信號，輸出修正輸出影像之信號， 藉以調整前述顯示面板之輸出影像。 較佳為’前述影像修正表係針對每一灰階而記錄》根據影像信號 之座標及信號值進行線性内插（liner interp〇lati〇n)，藉以產生調 整輸出影像的信號。 依據本發明之第1及第2態樣的發明，控制部，係對信號產生部 7 201011731 輸出顯示面板全面共通的信號值之供給指示n控制部，係從攝 像部取得輸細象資料。其次部’係藉由簡丨縣資料進行 帶通遽波而算出帶通資料，且輪出對應於帶通料的影絲正表。藉 此，可根據所拍攝到的影像’來產生影像修正表。在此藉由進行帶 通濾波，可讓變化緩和_示不均、或較細均不被修正。因 而，可排關邊減細料，並且可既簡胃又纽率崎健示不均。 依據較佳義樣’控卿，係針對每—灰階輸_示面板全面共 通的信號值之供給指示’針對每—灰階取得輸出影像資料且針對每 -灰階輸出雜修正表。藉此，即使在顯示不均會因灰階而發生變化 的情況時，也可產生正確的影像修正表。 I據本發明之第3態_發明’影像修均路，係記憶用以調整 供給至顯tf®板之影像雜_雜正表 據顯示面板全面共狀錢值而_示輸出影像龍^像修正迴 路，係對雜資料進行帶通驗，而算出帶通資料。影像修正表，係 對應該帶通資料而產生。影像修正迴路，係根據影像修正表，對供給 至顯示面板之雜信號，輸出修正輸出雜之信i藉此，可提升發 生顯示不均的顯示面板之畫質》 依據較佳的H樣’ f谱修正表係針對每__灰階而記錄。影像修正 迴路，係根據影像信號之座標及信驗而對修正輪出影像的信號進行 線性内插，以產生調整輸出影像的信號。藉此，即使在顯示不均會因 灰階而發生變化的情況時，也可提升顯示面板的畫質。 201011731 【實施方式】 以下，針對本發明之影像修正資料產生系統、影像修正資料產生 方法、影像修正資料產生程式及影像修正迴路加以說明。本實施形熊 中，係假設抑制調整對象之顯示面板的顯示不均（亮度不均）而改善畫 質的情況。另外，本實施形態中，係使用液晶面板10作為調整對象 之顯示面板。 該液晶面板ίο，係包含夾於透明電極的液晶（液晶部）、以及從背 〇 面照明液晶的背光源。因此，在液晶面板1〇，係輸出液晶部之不均、 與背光源之周邊減光經重疊後的影像。 為了改善液晶面板10之畫質，如圖3所示，使用修正迴路5〇。 該修正迴路50，係具備用以記錄影像修正表的非揮發性記憶體 (ROM51)。 在該_卜係記錄有關於修正值之資料(影像修正表），該修正 值係用以調整所輸入的影像信號之信號值。本實施形態中係針對每 Q 一基準灰階而記錄有修正值之平面分布。 然後，如囷1所示，用以算出該修正值的影像修正f料產生系統， 係包含畫質調整裝置20、拍攝照相機3〇、測試圖案產生裝置4〇及r〇m 寫入器60。 在此，作為攝像部的拍攝照相機3〇，係拍攝顯示於液晶面板1〇 上的影像，且將輸出影像資料供給至畫質調整裝置20。本實施形態 中’係使用具備有CCD元件之單色照相機作為拍攝照相機3〇。 作為信號產生部的測試圖案產生裝置4〇，係根據來自畫質調整裝 9 201011731 置20之指示，供給測試圖案信號至液晶面板10〇本實施形態甲，係 將8bit(8位元）之RGB信號供給至液晶面板10之全面。 ROM寫入器60，係將從畫質調整裝置2〇輸出的修正值資料寫入 於 R0M51 。 畫質調整裝置20 ’係為執行算出修正值之處理的電腦終端機，該 修正值係用以調整液晶面板1〇之畫質。 該畫質調整裝置20係具備控制部21。該控制部21，係具有CPU、 RAM及ROM等’且進行後述的處理（包含輸出共通的信號值之供給指示 的指示階段、影像取得階段、帶通濾波階段及修正資料產生階段等的 處理）。藉由執行為此的修正表產生程式，控制部2丨，係如圖1所示’ 發揮作為製程管理部211、帶通濾波器部212的功能。 製程管理部211，係發揮作為指示部、影像取得部及修正資料產 生部的功能。具體而言’製程管理部21卜係控制輸入至液晶面板1〇 的信號，並且根據顯示於液晶面板1〇的輸出影像資料執行算出修正 值的處理。 帶通濾波器部212,係產生由拍攝照相機3〇取得的輸出影像資料 中將平穩的變化成分與較細的變化成分予以删除的帶通資料。亦即， 帶通濾波器部212係進行如只分離中間頻率的帶通濾波。 (修正資料產生處理） 其次，使用圖2，針對修正資料產生處理加以說明。 在此，產生用以針對預定的每一灰階抑制顯示不均的影像修正 表。具體而言，針對預先設定的每一灰階(基準灰階），算出液晶面板 201011731 10上的修正值之分布。本實施形態’係假設在以8bit表現的信號值 中使用預定數(例如，10階段)之基準灰階，且針對每1階段依次變更 對應於基準灰階的調整對象灰階，而在每一調整對象灰階產生影像修 , 正表。The signal generating unit of the material supplies a signal for transferring the image to the display panel. In the above-mentioned camera section, the bar is photographed in front of the panel. The former galloping department is connected to (4) Lai to produce a light chest. The former Meiqing Weixing follows the operation of the signal value of the output panel of the output field of the other domain generation unit; the output of the hybrid dragon is obtained from the above camera; the (four) image is tilted to calculate the ib bandpass data. And the output corresponds to the secret tape transfer correction table. The third miscellaneous correction circuit of the present invention is recorded (4) and supplied to the display panel miscellaneous watch. Qian Linsi is the domain of Lintong. The bandpass data is obtained by performing a pass test on the output image displayed according to the signal value common to the display panel. The root image correction table ' outputs a signal for correcting the output image to the image signal supplied to the display panel, thereby adjusting the output image of the display panel. Preferably, the "image correction table is recorded for each gray level" is linearly interpolated based on the coordinates and signal values of the image signal, thereby generating a signal for adjusting the output image. According to the invention of the first and second aspects of the present invention, the control unit outputs a signal indicating unit n to the signal generating unit 7 201011731 for outputting a signal value that is common to the display panel, and obtains the image data from the image capturing unit. The second part calculates the band-pass data by bandpass chopping by the Jian County data, and rotates the shadow table corresponding to the band pass. By this, an image correction table can be generated based on the captured image. Here, by performing band-pass filtering, the variation can be made uneven, or the thinner is not corrected. Therefore, it is possible to reduce the fineness of the cut-off side, and it can be both simple stomach and New Zealand. According to the preferred example, the control unit provides an output indication for the signal value of the entire common gray-scale display panel. The output image data is obtained for each gray scale and the miscellaneous correction table is output for each gray scale. Thereby, even when the display unevenness changes due to the gray scale, an accurate image correction table can be generated. According to the third aspect of the present invention, the invention of the image repairing average is used to adjust the image supplied to the display tf® board, and the output image is displayed. Correct the loop, and carry out the pass-through test on the miscellaneous data, and calculate the band-pass data. The image correction table is generated by the pair of data. The image correction circuit is based on the image correction table, and outputs a modified output signal to the noise signal supplied to the display panel, thereby improving the image quality of the display panel in which display unevenness occurs. According to the preferred H-like image The spectral correction table is recorded for each __ gray scale. The image correction circuit linearly interpolates the signals of the corrected round-out image according to the coordinates and the test of the image signal to generate a signal for adjusting the output image. Thereby, the image quality of the display panel can be improved even when the display unevenness changes due to the gray scale. 201011731 [Embodiment] Hereinafter, the image correction data generation system, the image correction data generation method, the image correction data generation program, and the image correction circuit of the present invention will be described. In the present embodiment, it is assumed that the display unevenness (brightness unevenness) of the display panel to be adjusted is suppressed to improve the image quality. Further, in the present embodiment, the liquid crystal panel 10 is used as the display panel to be adjusted. The liquid crystal panel includes a liquid crystal (liquid crystal portion) sandwiched between the transparent electrodes and a backlight for illuminating the liquid crystal from the back surface. Therefore, in the liquid crystal panel 1 〇, an image in which the unevenness of the liquid crystal portion is output and the light is superimposed on the periphery of the backlight is superimposed. In order to improve the image quality of the liquid crystal panel 10, as shown in FIG. 3, a correction circuit 5 is used. The correction circuit 50 is provided with a non-volatile memory (ROM 51) for recording an image correction table. The data relating to the correction value (image correction table) is recorded in the image, and the correction value is used to adjust the signal value of the input image signal. In the present embodiment, the plane distribution of the correction value is recorded for every Q reference gray scale. Then, as shown in FIG. 1, the image correction material generating system for calculating the correction value includes an image quality adjusting device 20, a shooting camera 3A, a test pattern generating device 4A, and an r〇m writer 60. Here, the imaging camera 3 as the imaging unit captures the image displayed on the liquid crystal panel 1A, and supplies the output image data to the image quality adjustment device 20. In the present embodiment, a monochrome camera equipped with a CCD element is used as the imaging camera. The test pattern generating device 4 as the signal generating unit supplies the test pattern signal to the liquid crystal panel 10 in accordance with an instruction from the image quality adjusting device 9 201011731, which is an 8-bit (8-bit) RGB. The signal is supplied to the entire surface of the liquid crystal panel 10. The ROM writer 60 writes the correction value data output from the image quality adjusting device 2 to the ROM 51. The image quality adjusting device 20' is a computer terminal for performing a process of calculating a correction value for adjusting the image quality of the liquid crystal panel. The image quality adjustment device 20 includes a control unit 21. The control unit 21 includes a CPU, a RAM, a ROM, and the like, and performs processing (including an instruction stage for outputting a common signal value supply instruction, an image acquisition stage, a band pass filtering stage, and a correction data generation stage). . By executing the correction table generating program for this purpose, the control unit 2 functions as the process management unit 211 and the band pass filter unit 212 as shown in Fig. 1 . The process management unit 211 functions as an instruction unit, a video acquisition unit, and a correction data generation unit. Specifically, the process management unit 21 controls the signal input to the liquid crystal panel 1A, and performs processing for calculating the correction value based on the output image data displayed on the liquid crystal panel 1A. The band pass filter unit 212 generates band-pass data in which the smooth change component and the thin change component are deleted from the output image data acquired by the photographing camera 3A. That is, the band pass filter unit 212 performs band pass filtering such that only the intermediate frequency is separated. (Revision data generation processing) Next, the correction data generation processing will be described using FIG. Here, an image correction table for suppressing display unevenness for each predetermined gray scale is generated. Specifically, the distribution of the correction values on the liquid crystal panel 201011731 10 is calculated for each gray scale (reference gray scale) set in advance. In the present embodiment, it is assumed that a predetermined number (for example, ten stages) of reference gray scales is used for signal values expressed in 8 bits, and the adjustment target gray scales corresponding to the reference gray scales are sequentially changed for each stage, and each Adjust the gray scale of the object to produce image repair and alignment.

首先，晝質調整裝置20之控制部21，係在步驟S1中，執行測試 圖案產生處理。具體而言，控制部21之製程管理部211，係對測試圖 案產生裝置40 ’指示用以進行調整對象灰階之影像輸出的RGB信號之 〇 輸出。在此，在調整對象灰階中，係對液晶面板1〇之全面，使用R 信號值、G信號值、B信號值為相同的RGB信號(共通的信號值）»按 照該指示’測試圖案產生裝置40，係將成為調整對象灰階的8bit之 RGB信號供給至液晶面板1 〇 » 然後’液晶面板10，係按照RGB信號之輸入而輸出調整對象灰階 之灰色影像。此情況’在液晶中有單元間隙之不均、或背光源之亮度 不均時，會在液晶面板10產生重疊此等不均的顯示不均。在此，拍 ® 攝照相機30，係拍攝顯示不均被重疊過的影像。 然後，晝質調整裝置20之控制部21，係在步驟S2中，執行輸出 影像之取得處理。具體而言，控制部21之製程管理部211，係從拍攝 照相機30取入藉由拍攝液晶面板10而得的輸出影像資料。然後，製 程管理部211，係將該輪出影像資料，轉換成由8x8像素所構成的區 塊之每一區塊的亮度分布，且供給至帶通濾波器部212。 其次，畫質調整裝置20之控制部21，係在步驟S3中，執行帶通 濾波處理。具體而言，控制部21之帶通濾波器部212，係藉由對所取 201011731 得的輸出影像資料進行帶通瀘、波，而算出帶通資料。該帶通資料係 按照液晶面板ίο之面⑽亮度分布，由扣除掉高頻成分及低頻成分 後的分布所構成》然後，帶通遽波器部212，係將所產生的帶通資料 供給至製程管理部211。 其次，畫質調整裝置20之控制部21 ’係在步驟&中，執行修正 值算出處理。具體而言，控制部21之製程管理部211，係產生使帶通 資料反轉過的影像修正表。更且，製程管理部2U，係將用於晝質調 整的基準灰階賦予與所指定的識別符（identifier)相關聯之後再將❹ 影像修正表暫時記憶於記憶體。 然後’畫質調整裝置20之控制部21，係就下一個調整對象灰階， 反覆進行上述的處理。 在全部的基準灰階都已結束修正資料之算出時，晝質調整裝置2〇 之控制部2卜係在步驟S5中’執行麵寫入處理。具體而言，控制 4 21之製程管理部211，係將暫時記憶的影像修正表寫入於·51。 藉此，在R0M51，係針對每-基準灰階，對液晶面板1〇之面内的區塊眷 位置(xy座標）記錄有修正值之分布。 (影像顯示處理） 然後’對應該液晶面板1〇而產生的R〇M51，係組裝於修正迴路 50。該修正迴路，係為用以調整供給至液晶面板10之影像信號的迴 路。具體而言，用以在液晶面板1〇顯示影像的影像信號(RGB信號）， 係一同供給至液晶面板1〇與修正迴路。 如圖3所示，該修正迴路50，係除了具備ROM51以外，還具備選 12 201011731 擇内插部52及加算部53。 選擇内插部52，係針對每一脇信號參照記錄於画1的影像修 正表。在此’選擇内插部52，係在鄰接於影像信號之各RGB信號值的 -個基準灰階之影娜正表巾，轉依包圍影像信狀像素位置(灯 座標）的四個區塊格子點而決定的修正值(2χ4=8個）。然後選擇内插 部52，係針對所取得的修正值，按照影像信號之信號值與各格子點的 距離而進行線性内插。 然後，加算部53，係將從選擇内插部52取得的修正值，加算於 所輸入的影像信號中液晶面板，係取得該經修正過的影像信號， 而顯示影像。 依據本實施形態，則可獲得如下的優點。 本實施形態中，修正迴路50，係具備R0M5卜選擇内插部52及 加算部53 〇在該ROM51，係記錄有根據依拍攝照相機3〇而拍攝到的 影像中之顯示不均所產生的影像修正表。由於顯示不均係與各像素之 亮度與理想值不同而產生，所以只要事_定與各像素之理想值的分 歧，即可按_分歧藉祕正對各騎之輸人像讀來消除顯示不 均。 本實施形態中’在ROM51，係針對每一基準灰階記錄有影像修正 表。顯示不均之發生，係即使為同一像素也沒有一定的輸入位準。例 如，當輸入20%灰色時顯示19%之灰色的像素，有時會以在5〇%灰色中 顯示51%灰色，而在80%灰色中顯示83%灰色的方式而變化。由於在 ROM51係針對每一基準灰階而記錄有影像修正表，所以可進行與各像 13 201011731 素之信號值相應的修正。 本實施形態中，係使用進行帶通濾波後的分布而產生影像修正 表。藉此’並未針對緩和的亮度變化進行修正。液晶本身的不均為1% 以下，即使在較多時也只有5%左右；相對於此，背光源之周邊減光為 較多時有時則達30%左右。假設在不進行低頻成分之去除(低切割：i〇w cut)而修正完全的白色（loo%灰色)影像時，會受到周邊減光之影響， 而使液晶面板10之中心部附近的亮度降低。 在此種情況下，畫面整體之平穩的光量變化係不易被人類的眼睛 所檢測到。因而，在進行不執行低切割的修正時，只有液晶面板1〇 之亮度降低時才會顯眼。 又，非常細的顯示不均（高頻成分）也不易被人類的眼睛所檢測 到。更且，為了修正非常細的顯示不均，有必要正確地取得測定影像 與液晶之像素位置之間的相互關係，一旦有些微偏移反而會製造顯示 不均。因而，藉由進行高頻成分之去除（高切割：high cut)，即可既 簡易又有效率地產生影像修正表。 又，上述實施形態也可變更如下。 在上述實施形態中，係使用單色照相機，進行亮度不均之修正。 抑制對象之顯示不均並非被限定於亮度，上述實施形態也可應用於顏 色不均之修正。在修正亮度不均及顏色不均之雙方時，係使用RGB三 個渡光器（optical filter)，並分別在攝像部取得輸出影像。然後， 從個別的影像藉由上述帶通濾波處理（步驟S3)、修正值算出處理（步 驟S4)算出修正值。然後，製作R信號用、G信號用、B信號用之三種 201011731 料值，而抑制顏色不均。 上述實施形態中，係評價已使RGB之各信號值成為—致的影像， 並進行亮度不均之修正。在修正顏色不均時，並非使用濾光器，而是 也可將單一色的R信號、G信號、β信號分別獨立供給至液晶面板1 〇， 並藉由輸出影像之取得處理（步驟S2)、帶通濾波處理(步驟S3)、修 正值算出處理（步驟S4)來產生影像修正表。 上述實施形態中，雖已應用於液晶面板1G之顯示不均的抑制， Ο 但是調整對象之顯示面板並非被限定於此。本案發明之影像修正也 可應用於如電衆顯示器⑽）、投影型投影機等的影像輸出裝置。 上述實施形態中，係針對調整對象之每一液晶面板1〇，執行測試 圖案產生處理(步驟S1)至ROM寫人處理(步驟S5)。取而代之，在調 整對象之代表性的顯示面板中，也可藉由執行測試圖案產生處理(步 驟S1)至修正值算出處理（步驟S4)，來算出代表性的修正值。然後， 在此變更例中’也可製作已寫入代表性之修正值的_，且組裝於修 〇 正迴路50。 例如，在代表性的液晶面板中，當進行起因於光源（背光源)之亮 度不均（顯示不均）的修正時，可應用上述變更例。在液晶面板中當 減少背光源之燈數、或去除掉擴散片、或縮短擴散板與燈泡之距離 時’會發«光麟it朗亮衫均。如麟㈣Μ紐所造成的 亮度不均之液晶面板，可藉由應用上述變更例來抑制顯示不均。結 果，藉由刪減燈泡之燈數等來減少構成顯示面板之零件數 ，即可謀求 成本降低’並且可製造高品質_示面板。又，在刪減過燈泡之燈數 15 201011731 的情況，雖然背光源之光量會減少 使燈泡與擴散板之距離靠近， 但是可藉由去除掉光學片等、或 來—邊調整光量-邊轉鱗的亮度。 更且，也可對此種代表性的修正值，針對每一面板個別地施用本 發明之影絲正。織’針對各修正錄行職寫人處理。在此情況 下’可根據侧_示面板之特絲抑制顯科均，且可製造更高品 質的顯示面板。亦即，大量的修正_由代紐的影像修正來進行， 進而針對每-顯示面板進行微調，藉此可有效率地進行影像修正。 【圖式簡單說明】 _ 圖1係為本發明實施形態的影像修正資料產生系統之示意圖。 圖2係在圖1之系統中執行的修正資料產生處理之示意圖。 圖3係為設置於圖1之系統内的修正迴路之示意圖。 【主要元件符號說明】 10液晶面板 20晝質調整裝置 21控制部 3〇拍攝照相機 40測試圖案產生裝置50修正迴路 51 ROM 60 ROM 寫入器 211製程管理部 212帶通濾波器部 16First, the control unit 21 of the enamel adjusting device 20 executes the test pattern generation processing in step S1. Specifically, the process management unit 211 of the control unit 21 instructs the test pattern generation device 40' to output the RGB signal for adjusting the image output of the target gray scale. Here, in the adjustment target gray scale, the liquid crystal panel 1 is comprehensive, and the R signal value, the G signal value, and the B signal value are the same RGB signals (common signal values) » according to the indication 'test pattern generation The device 40 supplies an 8-bit RGB signal which is an adjustment target gray scale to the liquid crystal panel 1 and then the 'liquid crystal panel 10' outputs a gray image of the adjustment target gray scale in accordance with the input of the RGB signal. In this case, when there is unevenness in cell gap in the liquid crystal or unevenness in luminance of the backlight, display unevenness in which the unevenness is superimposed on the liquid crystal panel 10 occurs. Here, the camera 3 is taken to capture an image in which unevenness has been superimposed. Then, the control unit 21 of the enamel adjusting device 20 performs the process of acquiring the output image in step S2. Specifically, the process management unit 211 of the control unit 21 takes in the output image data obtained by capturing the liquid crystal panel 10 from the imaging camera 30. Then, the process management unit 211 converts the rounded image data into a luminance distribution of each block of the block composed of 8x8 pixels, and supplies it to the band pass filter unit 212. Next, the control unit 21 of the image quality adjusting device 20 performs band pass filtering processing in step S3. Specifically, the band pass filter unit 212 of the control unit 21 calculates band-pass data by band-passing and wave-passing the output image data obtained from 201011731. The band pass data is formed according to the brightness distribution of the liquid crystal panel ίο (10), and is distributed by subtracting the distribution of the high frequency component and the low frequency component. Then, the band pass chopper portion 212 supplies the generated band pass data to Process management unit 211. Next, the control unit 21' of the image quality adjusting device 20 performs the correction value calculation processing in the step & Specifically, the process management unit 211 of the control unit 21 generates an image correction table for inverting the band pass data. Further, the process management unit 2U associates the reference gray scale for the enamel adjustment with the designated identifier, and then temporarily stores the 影像 image correction table in the memory. Then, the control unit 21 of the image quality adjusting device 20 repeats the above-described processing for the next adjustment target gray scale. When the calculation of the correction data has been completed for all the reference gray scales, the control unit 2 of the quality adjustment device 2 is configured to perform the surface write processing in step S5. Specifically, the process management unit 211 of the control unit 211 writes the image correction table temporarily stored in the .51. Thereby, in the ROM 51, a distribution of correction values is recorded for the block 位置 position (xy coordinates) in the plane of the liquid crystal panel 1 for each-reference gray scale. (Image Display Processing) Then, R 〇 M51 corresponding to the liquid crystal panel 1 is assembled in the correction circuit 50. This correction circuit is a circuit for adjusting the image signal supplied to the liquid crystal panel 10. Specifically, the video signal (RGB signal) for displaying the video on the liquid crystal panel 1 is supplied to the liquid crystal panel 1 and the correction circuit. As shown in Fig. 3, the correction circuit 50 includes an optional interpolation unit 52 and an addition unit 53 in addition to the ROM 51. The interpolation unit 52 is selected to refer to the image correction table recorded in the picture 1 for each of the threat signals. Here, the 'interpolation portion 52' is a four-block of the reference gray scale adjacent to each RGB signal value of the image signal, and is switched to four blocks surrounding the image letter pixel position (light coordinate). The correction value determined by the grid point (2χ4=8). Then, the interpolation unit 52 is selected to linearly interpolate the obtained correction value in accordance with the distance between the signal value of the video signal and each lattice point. Then, the adding unit 53 adds the correction value obtained from the selection interpolating unit 52 to the liquid crystal panel of the input video signal, and acquires the corrected video signal to display the video. According to this embodiment, the following advantages can be obtained. In the present embodiment, the correction circuit 50 includes the ROM 5 selection interpolation unit 52 and the addition unit 53. The ROM 51 records an image generated by the display unevenness in the image captured by the camera 3〇. Correct the table. Since the display unevenness is generated differently from the brightness of each pixel and the ideal value, as long as the difference between the ideal value and the pixel is determined, the display can be eliminated by reading the image of each rider. All. In the present embodiment, in the ROM 51, an image correction table is recorded for each reference gray scale. The occurrence of unevenness is displayed, even if it is the same pixel, there is no certain input level. For example, a 19% gray pixel is displayed when 20% gray is input, sometimes changing by displaying 51% gray in 5〇% gray and 83% gray in 80% gray. Since the image correction table is recorded for each reference gray scale in the ROM 51, correction corresponding to the signal value of each image 13 201011731 can be performed. In the present embodiment, the image correction table is generated by using the band-pass filtered distribution. This is not corrected for the gradual change in brightness. The liquid crystal itself is not more than 1%, and is only about 5% even when it is large. On the other hand, when the backlight is dimmed to a large extent, it may be about 30%. It is assumed that when a complete white (loo% gray) image is corrected without removing the low frequency component (low cut: i 〇 w cut), it is affected by the peripheral dimming, and the brightness near the center portion of the liquid crystal panel 10 is lowered. . In this case, the smooth change in the amount of light of the entire screen is not easily detected by the human eye. Therefore, when the correction for not performing the low cut is performed, only the brightness of the liquid crystal panel 1 降低 is conspicuous. Also, very fine display unevenness (high frequency components) is not easily detected by human eyes. Furthermore, in order to correct very fine display unevenness, it is necessary to accurately obtain the correlation between the measurement image and the pixel position of the liquid crystal, and if some micro offset occurs, display unevenness is produced. Therefore, the image correction table can be easily and efficiently generated by performing high frequency component removal (high cut: high cut). Further, the above embodiment can be modified as follows. In the above embodiment, the monochrome unevenness is used to correct the unevenness in brightness. The display unevenness of the suppression target is not limited to the brightness, and the above embodiment can also be applied to the correction of the color unevenness. When both the uneven brightness and the color unevenness are corrected, three RGB optical filters are used, and the output images are obtained in the imaging unit. Then, the correction value is calculated from the individual video by the band pass filtering process (step S3) and the correction value calculation process (step S4). Then, three kinds of 201011731 material values for R signal, G signal, and B signal are produced, and color unevenness is suppressed. In the above embodiment, it is evaluated that the signal values of the RGB signals are made to be corrected, and the luminance unevenness is corrected. When the color unevenness is corrected, instead of using a filter, the R signal, the G signal, and the β signal of a single color may be independently supplied to the liquid crystal panel 1 and processed by the output image (step S2). The band pass filter processing (step S3) and the correction value calculation processing (step S4) generate an image correction table. In the above embodiment, the display panel of the liquid crystal panel 1G is suppressed from being suppressed. However, the display panel to be adjusted is not limited thereto. The image correction of the present invention can also be applied to an image output device such as a television display (10), a projection projector, or the like. In the above embodiment, the test pattern generation processing (step S1) to the ROM write processing (step S5) is performed for each of the liquid crystal panels 1 to be adjusted. Alternatively, in the representative display panel of the adjustment target, the representative correction value may be calculated by executing the test pattern generation processing (step S1) to the correction value calculation processing (step S4). Then, in this modified example, _, in which a representative correction value has been written, can be created and assembled in the repair circuit 50. For example, in a typical liquid crystal panel, when the correction of luminance unevenness (display unevenness) caused by the light source (backlight) is performed, the above-described modification can be applied. In the LCD panel, when the number of backlights is reduced, or the diffusion sheet is removed, or the distance between the diffusion plate and the bulb is shortened, the light will be issued. For the liquid crystal panel with uneven brightness caused by the Lin (4) Μ button, the display variation can be suppressed by applying the above-described modification. As a result, by reducing the number of lamps of the bulb or the like, the number of components constituting the display panel can be reduced, and the cost can be reduced, and a high-quality display panel can be manufactured. Moreover, in the case where the number of lamps of the light bulb is reduced 15 201011731, although the amount of light of the backlight is reduced to bring the distance between the bulb and the diffusion plate closer, the amount of light can be adjusted by removing the optical sheet or the like. The brightness of the scales. Furthermore, it is also possible to apply the shadow of the present invention individually for each panel with respect to such a representative correction value. Weaving is handled by the staff of each revision record. In this case, it is possible to suppress the display according to the side wire of the side panel, and it is possible to manufacture a display panel of a higher quality. That is, a large number of corrections _ are performed by the image correction of the dynasty, and fine adjustment is performed for each display panel, whereby image correction can be performed efficiently. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of an image correction data generating system according to an embodiment of the present invention. 2 is a schematic diagram of a correction data generation process performed in the system of FIG. 1. Figure 3 is a schematic illustration of a correction circuit disposed within the system of Figure 1. [Description of main component symbols] 10 liquid crystal panel 20 enamel adjusting device 21 control unit 3 〇 shooting camera 40 test pattern generating device 50 correction circuit 51 ROM 60 ROM writer 211 process management unit 212 band pass filter unit 16

Claims (1)

201011731 七、申請專利範圍： 1.-種影像修正資料產“統，係具備： L號產生部’卿以輪出影像的健供給至顯示面板·， 攝像和拍攝在_顯示面板中顯示的輸出影像 :以及 控制部’連接於前述域產生部及前述攝像部，且 前述控制部，係具備： 二P對前述彳。號產生部輸出顯示面板全面共通的信號值之供給指 示； 影像取得部，從前述攝像部取得輸出影像資料； 帶通;慮波器和藉由對前述輸出影像資料進行帶通遽波而算出帶通資 資料產生4，輸出對應於前述帶通資料的影像修正表。 ^如申請專利範圍第1項之影像修正資料產生纽，其中， j述指不和係針對每—灰階輪出顯示面板全面共通的信號值之供給 9 前述影像取得部，係針對每一灰階取得輸出影像資料， 前述修正資料產生部’係針對每一灰階輸出影像修正表。 3.-種影像修正資料產生方法係使用影像修正資料產生系統來產生 "像修正麟的綠，該轉修正資繼生錢係具備： 信號產生部，將用以輪出影像的信號供給至顯示面板； 攝像部，拍攝在前述顯示面板中顯示的輪出影像；以及 控制部’連接於前述信號產生部及前述攝像部且 17 201011731 前述控制部，係執行如下作業： s號產生稍出顯不面板全面共通的信號值之供給指示； 從前述攝像部取雜_像資料； 藉由對前述輸出影像資料進行帶通據波而算出帶通資料；以及 輸出對應於前述帶通資料的影像修正表。 4. 一種影像修正迴路，係記憶用以調整供給《示面板之影像 影像修正表，且 月j述I像修正表係對應帶通資料而產生該帶通資料係藉由對根據供 至則賴㈣板全面之共通的健值示之細影像資料進行帶通 濾波所得， 正 根據前述雜修正表，雜給至前麵示面板之雜钱，輸出修 輪出影像之信號，藉以調整前述顯示面板之輸出影像。 5·如申請專利範圍第4項之影像修正迴路，其中， 前述影像修正表係針對每一灰階而記錄， 根據影像信號之座標及信號值進行線性内插，藉以產生調整輸出影像的❹ 信號。 18201011731 VII. Patent application scope: 1.- Kind of image correction data production system, with: L number generation department 'Qing to rotate the image of the health supply to the display panel ·, camera and shooting output displayed in the _ display panel And the control unit is connected to the domain generating unit and the imaging unit, and the control unit includes: two P pairs of the 彳. The number generating unit outputs an instruction to supply a signal value that is common to the display panel; and the image acquiring unit; Obtaining output image data from the imaging unit; bandpass; and a wave carrier and a bandpass data generation by the bandpass chopping of the output image data, and outputting an image correction table corresponding to the bandpass data. For example, the image correction data of the first application of the patent scope is generated, wherein, the reference numeral is a supply of signal values that are common to each of the grayscale display panels. 9 The image acquisition unit is for each grayscale Acquiring the output image data, the correction data generation unit 'outputs an image correction table for each gray scale. 3. - The image correction data generation method is The image correction data generation system generates a "green color" such as the correction of the lining, the signal generation unit has: a signal generation unit that supplies a signal for rotating the image to the display panel; and a camera unit that captures the display panel The wheeled image displayed in the middle; and the control unit 'connected to the signal generating unit and the imaging unit 17 17117117 The control unit performs the following operation: the s number generates a supply instruction indicating that the signal value of the panel is completely common; Extracting the image data from the image capturing unit; calculating the band pass data by performing the band pass data on the output image data; and outputting the image correction table corresponding to the band pass data. 4. An image correction circuit, which is a memory It is used to adjust the image image correction table supplied to the display panel, and the month-by-side I image correction table corresponds to the band pass data to generate the band pass data by using the common value of the comprehensive value according to the supply and supply (four) boards. The fine image data is obtained by band-pass filtering, and according to the above-mentioned miscellaneous correction table, the miscellaneous money is given to the front panel, and the output wheel is outputted. No., to adjust the output image of the display panel. 5. The image correction circuit of claim 4, wherein the image correction table is recorded for each gray level, and linearized according to coordinates and signal values of the image signal. Interpolation to generate a ❹ signal that adjusts the output image. 18
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