CN100405453C - Electro-optical device, driving method thereof, and electronic device - Google Patents

Abstract

Make the structure and control of the power supply uncomplicated, perform bright display, separate the vertical scanning period (frame) in the field of each color, and then divide each field into the first and second subfields. In the first subfield of the corresponding field, the light irradiation by the light source is stopped, and the scanning lines of the odd-numbered rows and the scanning lines of the even-numbered rows adjacent thereto are selected approximately simultaneously in a predetermined order, and at the same time, during each selection, the The data line corresponding to the pixel supplies the data signal corresponding to the scan line of the odd row, that is, the data signal corresponding to the grayscale of the pixel of the corresponding color. In the second subfield, the light source is controlled to illuminate The corresponding color light selects the scanning lines of the even rows in a predetermined order, and at the same time, at the time of each selection, the data signals corresponding to the scanning lines of the even rows are supplied through the data lines corresponding to the pixels, that is, the corresponding The grayscale of the colored pixel corresponds to the data signal.

Description

Electro-optical device, driving method thereof, and electronic device

technical field

The present invention relates to an electro-optical device driven in a so-called field sequential manner, a driving method thereof, and an electronic device.

Background technique

Generally, in the field sequential method, as shown in FIG. 7 , one vertical scanning period (one frame) for forming one color image consists of continuous three-color images of red (R), green (G), and blue (B). It is composed of three fields, and each of these fields is composed of a scanning period for sequentially selecting pixel rows and a retrace period after the scanning period. Moreover, during the scanning period of the R field, a plurality of pixel rows are sequentially selected for each row, the image data of the R component is written in each pixel, and red light is emitted during the subsequent retrace period. , select a plurality of pixel rows sequentially in each row, write the image data of the G component in each pixel, emit green light in the subsequent retrace period, and select a plurality of pixels sequentially in each row during the scanning period of the B field row, B component image data is written in each pixel, and blue light is emitted in the subsequent retrace period. As a result, primary color images of red, green, and blue are sequentially displayed, and these primary color images are superimposed to display a full-color image. In this field sequential method, it is not necessary to provide color filters in the display elements, and on the basis of bright display, it is not necessary to divide the display elements into RGB, so it is easy to realize high-definition display.

However, in the field sequential method, in order to perform a brighter display, it is necessary to take a longer time for emitting light or to increase the brightness of light. In order to take a longer light emission time, the retrace period can be lengthened, but if this is done, the display flicker becomes conspicuous due to the lengthening of the frame period (decreasing the frame frequency). On the other hand, if the luminance of light is increased, a high-performance light source is required, which not only leads to high cost but also increases power consumption.

Therefore, a technique has been proposed in which a light source is provided in each divided area and light is sequentially irradiated from the divided area in which image data has been written, while performing area division for every plurality of pixel rows (see Patent Document 1).

[Patent Document 1] JP-A-2002-221702 (see FIG. 2 )

However, in the above technique, since the light source is provided in each divided area, if there is a brightness difference between the light sources, not only the boundary of the divided area will be seen, but also the light source needs to be controlled individually in each divided area, so has complex problems with its control.

Contents of the invention

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electro-optical device capable of bright display and uncomplicated control of a light source, its driving method, and electronic equipment.

In order to solve the above-mentioned problems, the present invention is a driving method of an electro-optical device, wherein the electro-optical device has a corresponding setting for intersections of a plurality of rows of scanning lines and a plurality of columns of data lines, and when the corresponding scanning line is selected, it is kept in the corresponding position. A plurality of pixels of the data signal supplied on the data line, and a light source of each color that irradiates at least three different colors of light on each pixel, is characterized in that: the vertical scanning period is separated in the field of each color at the same time , and further divide each field into a first subfield and a second subfield, and in the first subfield in a field corresponding to a certain color, stop the irradiation of light for the above-mentioned light source, and select approximately simultaneously according to a predetermined order 1 scan line and 1 or more scan lines adjacent to the scan line, at the same time, at the time of each selection, among the selected multiple scan lines, the pixels corresponding to the above 1 scan line are connected to each other through the data line The corresponding data signal, that is, the data signal specifying the gradation of the color corresponding to the above-mentioned one field is supplied to the pixel, and in the second subfield connected after the above-mentioned first subfield, the light source is controlled so that the illumination corresponds to In the scanning line selected in the first subfield, the scanning line other than one scanning line is selected in a predetermined order, and at the same time, when each selection is selected, the pixel corresponding to the selected scanning line is passed through the data line. A corresponding data signal, that is, a data signal specifying the gradation of the color corresponding to the above-mentioned one field is supplied to the pixel. According to this method, since in the first subfield, a plurality of scanning lines are selected at the same time, compared with the selection of one row by one, the writing is completed in a short time. Therefore, even if one vertical scanning period is constant, in this The period of the second subfield in which light is irradiated can also be ensured within the amount of time. Therefore, while bright display is possible, the display roughness is not conspicuous because the writing is completed in the second subfield for the pixel row whose writing has not been completed in the first subfield.

In this method, preferably, in the above-mentioned first subfield, one of the scanning lines of the odd-numbered or even-numbered rows and the scanning line adjacent to one of the scanning lines are selected approximately simultaneously in a predetermined order, and in the above-mentioned second subfield , select the other side of the odd-numbered or even-numbered scanning lines in a predetermined order. In addition, in this case, it is preferable to select the odd-numbered scanning lines in a predetermined order in the first subfield, and select the odd-numbered scanning lines in a predetermined order in the second subfield. During the vertical scanning period in which even-numbered scan lines are selected in a predetermined order, the even-numbered scan lines are selected in a predetermined order in the first subfield, and the odd-numbered scan lines are selected in a predetermined order in the second subfield. The vertical scanning period is repeated at a predetermined cycle.

In addition, the present invention relates not only to a driving method of an electro-optical device but also to an electro-optical device or an electronic device.

Description of drawings

FIG. 1 is a block diagram showing the configuration of an electro-optical device according to an embodiment of the present invention.

FIG. 2 is a circuit diagram showing the configuration of a pixel in the electro-optical device.

FIG. 3 is a timing chart for explaining the operation of the electro-optical device.

FIG. 4 is a timing chart for explaining the operation of the electro-optical device.

FIG. 5 is a diagram showing a display state in the electro-optical device.

FIG. 6 is a perspective view showing the structure of a cellular phone using the electro-optical device.

FIG. 7 is a timing chart for explaining the operation of a conventional electro-optical device.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an electro-optical device 10 according to the present embodiment.

As shown in the figure, the electro-optic device 10 has a control circuit 12, a memory 13, a Y driver 14, an X driver 16, and a light source 18. At the same time, 360 scanning lines 112 are arranged along the horizontal direction (X direction). 480 columns of data lines 114 are arranged in the longitudinal direction (Y direction). Furthermore, the pixels 100 are arranged corresponding to intersections of the scan lines 112 and the data lines 114 . Therefore, in this embodiment, the pixels 100 are arranged in a matrix form of 360 rows x 480 columns to form the display area 100a.

The display area 100a has a structure in which the component substrate on which the pixel electrodes are formed and the transparent opposite substrate with the common electrode are bonded together with a certain gap between them, and the liquid crystal is sandwiched in the gap.

The control circuit 12 is a circuit that controls the operations of various parts of the electro-optical device 10 . In detail, the control circuit 12 transmits the display data Data, which is synchronously supplied with the vertical scanning signal Vs, the horizontal scanning signal Hs, and the dot clock signal Clk, to the memory 13 for temporary storage, and then communicates with the display area. The vertical scanning and horizontal scanning of 100 a are synchronized, and the display data Data is read from the memory 13 and supplied to the X driver 16 . In order to perform the vertical scanning and horizontal scanning, the control circuit 12 supplies necessary clock signals and the like to the Y driver 14 and the X driver 16 .

Here, the display data Data is data specifying the luminance (gradation value) of a pixel for each primary color of RGB. In this embodiment, as will be described later, one vertical scanning period (one frame) is divided into consecutive fields for each color of RGB, and each field is further divided into a first subfield and a second subfield. And in the second subfield, the vertical scanning of the display area 100a is different. Therefore, after the control circuit 12 stores the display data Data supplied from the host device at least for one frame in the memory 13, it reads out the display data of the corresponding color components in each subfield and supplies them to the X driver 16. structure. In addition, the control circuit 12 also controls the light emission and extinction of each color by the light source 18 described later.

The detailed operation of the Y driver (scanning line driving circuit) 14 will be described later. This is a circuit that supplies scanning signals to each scanning line 112 of 1 to 360 rows, corresponding to the first and second subfields, in a predetermined order Each scan line 112 is selected. Here, in the figure, the scanning signals supplied to the scanning lines 112 from the first to the 360th row are represented as Y _-1 , Y _-2 , Y _-3 , . . . , Y _-360 , respectively.

The X driver (data line driving circuit) 16 converts the display data of one row of pixels on the selected scan line 112 into data signals suitable for driving liquid crystals, and supplies them to the pixels 100 via the data lines 114 . Here, in the figure, the data signals supplied to the data lines 114 of the first column to the 480th column are represented as X _-1 , X _-2 , X _-3 , . . . , X _-480 , respectively.

The light source 18 is a so-called backlight unit including red LEDs 18R, green LEDs 18G, and blue LEDs 18B, and uniformly illuminates the display area 100a with light of any one of red (R), green (G), and blue (B). Here, the light emission of each LED in the light source 18 is controlled by the control circuit 12 .

Next, the structure of the pixel 100 will be described with reference to FIG. 2 .

As shown in the figure, in the pixel 100 , an n-channel TFT (Thin Film Transistor) 116 has its source connected to the data line 114 , its drain connected to the pixel electrode 118 , and its gate connected to the scanning line 112 .

In addition, the common electrode 108 is commonly provided for all pixels so as to face the pixel electrode 118, and in this embodiment, a constant voltage LCcom is applied periodically. Also, the liquid crystal layer 105 is sandwiched between these pixel electrodes 118 and the common electrode 108 . Therefore, in each pixel, a liquid crystal capacitance formed by the pixel electrode 118, the common electrode 108, and the liquid crystal layer 105 is formed.

Although not shown in particular, rubbing-treated alignment films are respectively provided on the opposite surfaces of the two substrates, so that the long-axis direction of the liquid crystal molecules is continuously twisted between the two substrates, for example, by about 90 degrees. A polarizer is provided on each of the rear surfaces of the two substrates so that the transmission axis coincides with the orientation direction.

Therefore, if the effective value of the voltage applied to the liquid crystal capacitor is 0, since the light passing between the pixel electrode 118 and the common electrode 108 rotates about 90 degrees along the twist of the liquid crystal molecules, the transmittance of the light is the largest, and the other On the one hand, as the effective value of the voltage increases, the liquid crystal molecules tilt toward the direction of the electric field, and their optical activity disappears, so the amount of transmitted light decreases, and the transmittance gradually becomes the minimum (normal white mode).

Therefore, the emitted light from the light source 18 is viewed by the user in a state limited by the effective value of the voltage applied to the liquid crystal capacitor for each pixel, thereby realizing so-called gray scale display.

In addition, in order to reduce the influence of charge leakage from the liquid crystal capacitor passing through the TFT 116, a storage capacitor 109 is formed for each pixel. One end of the storage capacitor 109 is connected to the pixel electrode 118 (the drain of the TFT 116 ), and the other end extends over all the pixels, for example, a common potential Vss that is grounded to the low potential side of the power supply.

Next, the operation of the electro-optical device 10 of this embodiment will be described. FIG. 3 is a timing chart showing the vertical scanning operation of the electro-optical device 10 .

As shown in the figure, in this embodiment, one vertical scanning period (one frame) is divided into three fields corresponding to RGB, and each field is divided into first and second subfields.

Here, during one vertical scanning period, in the first subfield of the R field, the control circuit 12 controls the light source 18 so that all the LEDs are turned off. The Y driver 14 is controlled so that the two rows of the even-numbered scanning lines 112 adjacent to the bottom of the odd-numbered scanning line are selected as a group in each horizontal scanning period (1H) so as to be sequentially selected from the top.

Thus, as shown in FIG. 3, in the first horizontal scanning period (1H) in the first subfield of the R field, only the scanning signals Y _-1 and Y _-2 are simultaneously at the H (high) level, Then, only the scanning signals Y _-3 and Y _-4 become H level at the same time, and then only the scanning signals Y _-5 and Y _-6 become H level at the same time. Similarly, the odd-numbered lines and the even-numbered lines following the odd-numbered lines The scanning signals of Y _-359 and Y _-360 simultaneously become H level simultaneously.

The control circuit 12 controls the Y driver 14 so as to simultaneously select the scanning lines 112 of odd-numbered rows and consecutive even-numbered rows, while controlling the X driver 16 as follows. That is, the control circuit 12 performs control so that before simultaneously selecting the odd-numbered and even-numbered rows, the display data of the R component, which is the display data Data of the 1-row pixel portion located on the selected predetermined odd-numbered scanning line 112, is read out from the memory 13, At the same time, when the odd row and the even row are selected simultaneously, for the X driver 16, the data signal of one row of pixels located on the odd row scanning line 112 is converted from the display data Data of the R component and output together.

Thus, the X driver 16 outputs data signals X _-1 , X _-2 , X _-3 , . . . , X ₋₄₈₀ , that is, a data signal of a voltage corresponding to the grayscale of the R component.

Here, when the scanning line 112 of a certain odd-numbered row is selected and its scanning signal becomes H level, since the TFT 116 of the pixel 100 located on the scanning line 112 of the selected odd-numbered row is turned on, when focusing on the data line of a certain column, At 114, the voltage of the data signal of the column of interest is written into the pixel electrode 118 of the pixel corresponding to the intersection of the selected scan line 112 and the data line 114 of the column of interest. Wherein, in this embodiment, when an odd-numbered row is selected, the scanning line 112 of the even-numbered row adjacent to it is also selected at the same time, so the voltage of the data signal of the column of interest is also written into the selected even-numbered row. The intersection of the scan line 112 and the data line 114 of the column of interest corresponds to the pixel electrode 118 of the pixel.

Therefore, when selecting the scanning line, if the scanning line 112 of the odd-numbered row and the scanning line 112 of the even-numbered row adjacent to it are selected at the same time, in the two pixels 100 corresponding to them, since the same data is written signal, so the transmission amounts of the two pixels correspond to the voltage of the data signal and become the same value. Therefore, at the end of the first subfield of the R field, as shown in FIG. 5( a ), the odd-numbered rows and the even-numbered rows below it naturally display the same gradation in every column. However, until the end of the first subfield of the R field, since all the LEDs are turned off in the light source 18, the display state formed only by writing in the first subfield cannot be seen by the observer.

Next, in the second subfield of the R field, the control circuit 12 controls the light source 18 so that only the red LED 18R emits light, and at the same time, controls the Y driver 14 so that in each horizontal scanning period (1H), the even numbers are sequentially selected from the top. row of scan lines 112 .

Thus, as shown in FIG. 3, in the first horizontal scanning period (1H) in the second subfield of the R field, only the scanning line number Y _-2 becomes H level, and in the next horizontal scanning period, Only the scanning signal Y _-4 is at the H level, and the scanning signal Y _-360 is at the H level similarly thereafter.

The control circuit 12 controls the Y driver 14 so that only even-numbered scanning lines 112 are selected, while controlling the X driver 16 as follows. That is, when selecting each scanning line, the control circuit 12 controls the X driver 16 so that the data signals of one row of pixels located in the selected even-numbered scanning line 112 are collectively output.

Thus, the X driver outputs data signals X ₋₁ , X ₋₂ , X _{−3 ,} .

Here, when the scanning line 112 of a certain even row is selected and the scanning signal is at H level, when focusing on the data line 114 of a certain column, the voltage of the data signal of the column concerned is written into the selected scanning line 112 and the selected scanning line 112. Focus on the intersection of the data line 114 of the column corresponding to the pixel electrode 118 of the pixel.

On the other hand, since writing is not performed in the second subfield, pixels in odd rows are held by the writing voltage of the first subfield.

Therefore, at the end of the second subfield of the R field, as shown in FIG. , becomes the gradation generated by the second writing in the second subfield.

Here, in the second subfield, since the red LED 18R emits light, the gradation produced by the writing in the first subfield is maintained for the even-numbered rows until the writing is completed. Become the original grayscale. Therefore, the higher the ratio of viewing in the original gray scale is, the higher the viewing ratio is in the upper row, and the lower the viewing ratio is in the lower row. However, when viewed on average, the ratio of the original gradation to be viewed in the even-numbered lines is approximately half, and the original gradation is viewed in the odd-numbered lines because writing has already been completed in the first subfield. The reduction in resolution won't be an issue.

In this embodiment, the control circuit 12 controls the red LED 18R to continue to emit light during the retrace period until the start of the next G field even after the selection of even-numbered rows in the second subfield of the R field ends.

In this way, in the second subfield of R and the subsequent retrace period, the viewer views the image of the R component in a full-color image.

Next, the G field will be described. The R field is an operation to write a data signal based on the R component display data Data, and the G field is an operation to write a data signal based on the G component display data Data, which is the same operation as the R field.

Therefore, in the first subfield of the G field, all the LEDs are turned off, and the scan lines 112 of the odd and even rows are sequentially selected from the top, and written according to the display data of the pixels located in the selected odd row of pixels. Input the data signal of the voltage corresponding to the gray level of the G component. Next, in the second subfield, only the green LED 18G emits light, and only the scanning lines 112 of the even-numbered rows are sequentially selected from the top, and in the pixel rows of the selected even-numbered rows, the pixel lines corresponding to the grayscale of the G component are written. voltage data signal. Therefore, in the second subfield of G and the subsequent retrace period, the viewer views the image of the G component in a full-color image.

The same applies to the subsequent B field, and an operation of writing a data signal based on the display data Data of the B component is performed. That is, in the first subfield of the B field, all the LEDs are turned off, and the scan lines 112 of the odd-numbered and even-numbered rows are sequentially selected from the top, and the display data of the pixels located in the pixel rows of the selected odd-numbered rows are selected sequentially. , write the data signal of the voltage corresponding to the gray scale of the B component, then, in the second subfield, only the blue LED 18B is lit, and only the scanning lines 112 of the even rows are selected sequentially from the top, and the selected A data signal of a voltage corresponding to the gradation of the B component is written in the pixel rows of the even-numbered rows. Therefore, in the second subfield of B and the subsequent retrace period, the viewer views the image of the B component in a full-color image.

Therefore, in the R, G, and B subfields, primary color images of the R component, G component, and B component are respectively generated. Therefore, when viewed in one frame, the observer sees a synthesized full-color image.

In this way, according to the present embodiment, in the first subfield, by simultaneously selecting the scanning line 112 every two lines, compared with the conventional method (refer to FIG. 7 ) in which one line of scanning line is selected at each time, the data corresponding to RGB is written. The writing period required for the data signal of the voltage corresponding to the gradation of each color component can be shortened by about half. Therefore, in the present embodiment, even if the length of the R field period is the same, a longer second subfield period can be ensured. Furthermore, in this embodiment, since LEDs of one color are turned on throughout the second subfield and the retrace period, the light-emitting period is longer than in the conventional method, and as a result, brighter display can be performed.

At this time, as for the LEDs of each color in the light source 18, it is enough to light only one LED of one color, so there is no unfavorable situation that the luminance is different in each divided area, and in addition, it is not necessary to separate the light sources of each divided area. complex control. Furthermore, the structure of the lighting device is not complicated.

In the above-mentioned embodiment, the data signal written in the two rows in the first subfield is a signal of an odd row, and in the second subfield, the LED of the written color is made to emit light. A structure in which data signals of the same color components are written to the pixels of the selected even rows. If this relationship is fixed, the quality of pixels in even-numbered rows is usually lower than that of pixels in odd-numbered rows.

Therefore, as shown in FIG. 4, in the first subfield, the data signals written in two rows may be taken as signals of even rows, and in the second subfield, only odd rows are sequentially selected, and write The frame of the data signal of the selected odd-numbered row is input, and the structure of the frame shown in FIG. 3 and the frame shown in FIG. 4 is alternately repeated at a certain cycle.

Here, from the viewpoint of preventing deterioration of the liquid crystal, the data signal is based on the voltage LCcom applied to the common electrode 108, and is alternately reversed according to the low voltage and the high voltage (AC driving). If the period of the frame shown in FIG. 4 is consistent with that of the frame shown in FIG. 4 , then the writing polarity of the scanning line written in the second subfield, that is, the writing polarity seen by the observer, is fixed in the odd and even lines , and thus may be the cause of so-called flickering. Therefore, it can be said that the configuration in which the cycle of the AC drive does not coincide with the cycle of alternately repeating the frame shown in FIG. 3 and the frame shown in FIG. 4 is most ideal.

In addition, in the first subfield, two rows of scanning lines 112 are simultaneously selected from the top, but it is also possible to simultaneously select three or more rows and simultaneously supply a data signal for a selected pixel row. On the other hand, in the second subfield, the pixel rows to which no data signal was supplied in the first subfield are sequentially selected, and the data signal is newly supplied to the selected scanning line.

As described above, in the second subfield, when the scanning lines are sequentially selected from the top to the bottom, the higher the ratio of the upper line to be viewed in the original grayscale, The scale of the grayscale viewing is reduced.

Therefore, in the second subfield of a certain frame, pixel rows that are not supplied with data signals in the first subfield are sequentially selected from top to bottom, and in the second subfield of other frames, it can also be reversed from bottom to top. sequential selection.

Furthermore, a plurality of selection orders may be prepared in advance, and a pixel row to which no data signal is supplied in the first subfield may be selected in accordance with one of the prepared orders, and the pixel row with the original grayscale based on the position of the pixel row may be removed. The proportion of viewing depends on the state.

In addition, in the above-mentioned embodiment, except for the second subfield, LEDs of a certain color are made to emit light during the retrace period, but if sufficient brightness can be obtained only by emitting light in the second subfield, then It can be turned off during the entire retrace period or a part of the period.

In addition, in the above-mentioned embodiment, the normally white mode for displaying white is described when the effective value of the voltage of the common electrode 108 and the pixel electrode 118 is small, but a normally black mode for displaying black may also be employed.

In addition, in the embodiment, the TN type is used as the liquid crystal, but it is also possible to use a bistable type having memory performance such as a BTN (bistable twisted nematic) type, a ferroelectric type, a polymer dispersion type, or a certain liquid crystal. The dye (guest) which has anisotropy in the absorption of visible light along the long axis direction and the short axis direction of the molecule is dissolved in the liquid crystal (host) of the molecular arrangement, and the GH (guest host) which makes the dye molecules and the liquid crystal molecules arranged in parallel ) type and other liquid crystals.

In addition, when no voltage is applied, the liquid crystal molecules are aligned in the vertical direction with respect to the two substrates, and on the other hand, when a voltage is applied, the liquid crystal molecules are aligned in the horizontal direction with respect to the two substrates. A so-called parallel (horizontal) alignment structure may be adopted in which liquid crystal molecules are aligned horizontally with respect to two substrates when no voltage is applied, and liquid crystal molecules are aligned vertically with respect to the two substrates when voltage is applied. In this way, in the present invention, various cases can be applied as a liquid crystal or an alignment method.

Next, an example in which the electro-optical device 10 as described above is applied to a specific electronic device will be described. FIG. 6 is a perspective view showing the structure of a mobile phone in which the electro-optic device 10 is applied to a display unit.

In the figure, a cellular phone 1200 includes an electro-optical device 10 together with a receiver port 1204 and a phone transmitter port 1206 in addition to a plurality of operation buttons 1202 . In addition, as electronic equipment, in addition to those described with reference to FIG. Direct-view devices such as workstations, TV phones, POS terminals, touch panels, etc., or projection devices such as projectors that form, enlarge and project reduced images, etc.

Claims (5)

1. method of driving electro-optical device, wherein, that this electro-optical device has is that the place of reporting to the leadship after accomplishing a task with fine scanning line and multi-column data line is provided with accordingly, when having selected corresponding sweep trace, maintenance is by a plurality of pixels of the data-signal of corresponding data line supply, the light source of every kind of coloured light of the 3 kind coloured light different at least with irradiation on each pixel, this driving method is characterised in that:

Vertical scanning period is distributed in the field of every kind of look, and and then each is divided into the 1st son and the 2nd son field,

In the 1st son field in 1 field corresponding with a certain form and aspect,

For above-mentioned light source, the irradiation of light is stopped,

Select 1 sweep trace and 1 row or the 1 row above sweep trace adjacent simultaneously according to predetermined order with this sweep trace,

When each is selected, supply with to this pixel through data line, in selected fine scanning line,, promptly specify the data-signal with the gray scale of above-mentioned 1 corresponding look in field with the corresponding data-signal of the pixel of above-mentioned 1 sweep trace,

Continuously in the 2nd son of above-mentioned the 1st son,

Control for above-mentioned light source, the light of the corresponding look of feasible irradiation,

In above-mentioned the 1st son in the selected sweep trace, according to the sweep trace beyond predetermined above-mentioned 1 sweep trace of select progressively,

And when each is selected, through the corresponding data-signal of pixel of data line to this pixel supply and selected sweep trace, the i.e. data-signal of the gray scale of appointment and above-mentioned 1 corresponding look in field.

2. method of driving electro-optical device according to claim 1 is characterized in that:

In above-mentioned the 1st son, according to predetermined order select simultaneously odd-numbered line or even number line sweep trace a side and with the adjacent sweep trace of this side sweep trace,

In above-mentioned the 2nd son field, according to predetermined select progressively odd-numbered line or the opposing party of even number line sweep trace.

3. method of driving electro-optical device according to claim 2 is characterized in that:

Make in the 1st son according to predetermined select progressively odd line interlace line, in the 2nd son according to the vertical scanning period of predetermined select progressively even number line sweep trace with

In the 1st son according to predetermined select progressively even number line sweep trace, in the 2nd son according to the vertical scanning period of predetermined select progressively odd line interlace line with certain cycle repeatedly.

4. electro-optical device is characterized in that:

Vertical scanning period is distributed in the field of every kind of look, and and then each is divided into the 1st son and the 2nd son field drives, comprising:

Be provided with accordingly with the place of reporting to the leadship after accomplishing a task of fine scanning line and multi-column data line, when having selected corresponding sweep trace, keep the pixel of the data-signal supplied with by corresponding data line;

The light source of every kind of coloured light of the light of the different at least 3 kinds of looks of irradiation on each pixel;

Control for above-mentioned light source, make in the 1st son field of the field corresponding, the irradiation of light to be stopped with a certain form and aspect, on the other hand, at the continuous control circuit that in the above-mentioned the 1st sub the 2nd son field, shines the light of corresponding look;

In above-mentioned the 1st son field corresponding with a certain form and aspect, select 1 sweep trace and 1 row or the 1 row above sweep trace adjacent simultaneously according to predetermined order with this sweep trace,

Continuously in the 2nd son field of above-mentioned the 1st son field, according to the scan line drive circuit of the sweep trace beyond predetermined above-mentioned 1 sweep trace of select progressively;

In above-mentioned the 1st son field corresponding with a certain form and aspect, when having selected above-mentioned 1 sweep trace and adjacent with this sweep trace 1 row or the sweep trace more than 1 row, through the pixel corresponding data-signal of data line to above-mentioned pixel supply and above-mentioned 1 sweep trace, promptly specify with the data-signal of the gray scale of above-mentioned corresponding look and

Continuously in the 2nd son field of above-mentioned the 1st son field, when the sweep trace selected beyond above-mentioned 1 sweep trace, through the pixel corresponding data-signal of data line to above-mentioned pixel supply and this selecteed sweep trace, the i.e. data line drive circuit of the data-signal of the gray scale of appointment and above-mentioned corresponding look.

5. electronic equipment is characterized in that having:

The described electro-optical device of claim 4.

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