TWI634543B - Driving device and driving method - Google Patents

Abstract

A driving device is used in a display system. The display system includes a plurality of pixels, each of which includes a plurality of sub-pixels. The driving device includes an image converter and a filter. The image converter is used to convert an input image signal into a display image signal. The filter is used to perform image homogenization processing on the display image signal of one of the sub-pixels provided to the pixels of the pixels and the display image signal of the adjacent pixels provided to the pixels, and to provide the The display image signal of the other one of the sub-pixels is subjected to image compensation to output a data signal.

Description

Driving device and driving method

The present invention relates to a display technology, and more particularly, to a driving device and a driving method.

In a general display system, a three-color input image signal is converted into a four-color signal by an image converter, and then the signal is sub-pixel rendered by a filter and displayed on the display system. However, all kinds of filters are missing. For example, although an average filter can redistribute the input signal evenly, it will cause blurred text and black and white lines will not be effectively resolved. In addition, although a diamond filter can sharpen the input signal, it will cause discontinuities and overflows of complementary color lines, and cause abnormal brightness and color shift of black and white lines.

It can be seen that the above existing methods obviously still have inconveniences and defects, and need to be improved. In order to solve the above-mentioned problems, the related fields have made every effort to find a solution, but a suitable solution has not been developed for a long time.

This summary is intended to provide a simplified summary of this disclosure, so that The reader has a basic understanding of this disclosure. This summary is not a comprehensive overview of this disclosure, and it is not intended to point out important / critical elements of the embodiments of the invention or to define the scope of the invention.

A technical aspect of the content of this case relates to a driving device, which is applied to a display system. The display system includes a plurality of pixels, each of which includes a plurality of sub-pixels. The driving device includes an image converter and a filter. The image converter is used to convert an input image signal into a display image signal. The filter is used to perform image homogenization processing on the display image signal of one of the sub-pixels provided to the pixels of the pixels and the display image signal of the adjacent pixels provided to the pixels, and to provide the The display image signal of the other one of the sub-pixels is subjected to image compensation to output a data signal.

Another technical aspect of the present invention relates to a driving device, which is used in a display system. The display system includes a plurality of pixels, each of which includes a plurality of sub-pixels. The driving device includes an image converter and a filter. The image converter is used to convert an input image signal into a display image signal. The filter is used to perform image compensation on the display image signals provided to the sub-pixels to output data signals. The image compensation performed by the filter is to provide a second image adjacent to the first pixel in the pixels to the second image. The original input image signal is subjected to saturation calculation to obtain a saturation value, and image compensation is performed according to the saturation value.

Another technical aspect of the content of this case relates to a driving method for driving a display system. The display system includes a plurality of pixels, each of which includes a plurality of sub-pixels. The driving method includes: converting an input image signal into a display image signal; displaying a display image signal of one of the sub-pixels provided to the pixels of the pixels and an adjacent pixel provided to the pixels; Shadow The image signal is subjected to image homogenization processing; and the display image signal provided to the other one of the sub-pixels is image-compensated to output a data signal.

Another aspect of the present invention relates to a driving method for driving a display system. The display system includes a plurality of pixels, each of which includes a plurality of sub-pixels. The driving method includes: converting an input image signal into a display image signal; and performing image compensation on the display image signal provided to the sub-pixels to output a data signal. The image compensation step includes: performing a saturation calculation on the input image signal of the first pixel provided to the pixels and a second pixel adjacent to the first pixel to obtain a saturation value; and Degrees for this image compensation.

Therefore, according to the technical content of this case, the embodiments of the present invention provide a driving device and a driving method to improve the problem that the average filter will cause blurred text and the black and white lines will not be effectively resolved. Complementary color lines are discontinuous and overflow, and cause problems with abnormal brightness and color shift of black and white lines.

After referring to the following embodiments, those with ordinary knowledge in the technical field to which this case belongs can easily understand the basic spirit and other inventive objectives of this case, as well as the technical means and implementation patterns used in this case.

100‧‧‧display system

100A‧‧‧Display System

110‧‧‧Drive

112‧‧‧Image Converter

114‧‧‧Filter

120‧‧‧Data Drive

S1‧‧‧Input image signal

S2‧‧‧Display image signal

S3‧‧‧Output data signal

D1 ~ Dm‧‧‧Data line

G1 ~ Gn‧‧‧Gate line

P1 ~ P9‧‧‧Pixels

130‧‧‧Gate driver

500‧‧‧method

510 ~ 530‧‧‧step

600‧‧‧ Method

610 ~ 620‧‧‧step

P11 ~ Pnm‧‧‧Pixels

B12 ~ Bnm‧‧‧ subpixel

G11 ~ Gnm‧‧‧ sub-pixel

R11 ~ Rnm‧‧‧ subpixel

W11 ~ Wnm‧‧‧ subpixel

In order to make the above and other objects, features, advantages, and embodiments of the present case more comprehensible, the description of the drawings is as follows: FIG. 1 is a schematic diagram of a display system according to an embodiment of the present case.

FIG. 2 is a schematic diagram of a display system according to another embodiment of the present invention. Illustration.

FIG. 3 is a schematic diagram illustrating an image compensation method of a display system according to an embodiment of the present invention.

Figures 4A to 4E are schematic diagrams illustrating a calculation method of a saturation value of a display system according to an embodiment of the present invention.

FIG. 5 is a flowchart illustrating a driving method according to an embodiment of the present invention.

FIG. 6 is a flowchart illustrating a driving method according to another embodiment of the present invention.

According to the usual operation method, the various features and components in the figure are not drawn to scale. The drawing method is to present the specific features and components related to the case in the best way. In addition, between different drawings, the same or similar element symbols are used to refer to similar elements / components.

In order to make the description of this disclosure more detailed and complete, the following provides an illustrative description of the implementation mode and specific embodiments of this case; but this is not the only form of implementing or using the specific embodiments of this case. The embodiments include the features of a plurality of specific embodiments, as well as the method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equal functions and sequence of steps.

Unless otherwise defined in this specification, the meanings of scientific and technical terms used herein are the same as those understood and used by those having ordinary knowledge in the technical field to which this case belongs. Furthermore, without conflicting context, this note The singular noun used in the book covers the plural form of the noun; the plural noun used also covers the singular form of the noun.

In addition, as used in this document, "coupling" may mean that two or more elements make direct physical or electrical contact with each other, or indirectly make physical or electrical contact with each other, or that two or more elements operate mutually Or action.

In order to improve the color conversion of the input image signal through the image converter, after sub-pixel rendering, the text may be blurred, the black and white lines cannot be effectively distinguished, the complementary color lines are discontinuous and the overflow or black and white lines have abnormal brightness. With regard to issues such as color shift, etc., this case proposes a display system 100, which will be described in detail later.

FIG. 1 is a schematic diagram of a display system 100 according to an embodiment of the present invention. As shown in the figure, the display system 100 includes a driving device 110, a data driver 120, a gate driver 130, a plurality of data lines D1 to Dm, a plurality of gate lines G1 to Gn, and a plurality of pixels P11 to Pnm. Each of the pixels P11 to Pnm includes a plurality of sub-pixels (for example, the pixel P11 includes sub-pixels W11, R11, and G11). Structurally, the driving device 110 is coupled to the data driver 120, the data driver 120 is coupled to the sub-pixels in the pixels P11 to Pnm through the data lines D1 to Dm, and the gate driver 130 is coupled to the gate lines G1 to Gn. Sub-pixels in pixels P11 ~ Pnm. It should be noted that in the first figure, each pixel is presented in a different filling manner, which is beneficial to distinguish the pixels. For example, pixel P11 is filled with diagonal lines from top right to bottom left, pixel P12 is filled with diagonal lines from top left to bottom right, and pixel P13 is filled with dots, which is helpful to distinguish different pixels.

In operation, the driving device 110 outputs the data signal S3 to the data driver 120 according to the input image signal S1. Gate driver 130 through gate The lines G1 ~ Gn output gate signals to control the on or off of the sub pixels in the pixels P11 ~ Pnm, and then the data driver 120 provides the data signal S3 to the corresponding sub pixels in the pixels P11 ~ Pnm for display. .

In this embodiment, the driving device 110 includes an image converter 112 and a filter 114. The image converter 112 is coupled to the filter 114. The image converter 112 is used for converting the input image signal S1 into a display image signal S2, such as converting a three-color input image signal into a four-color signal. The filter 114 is used to display the image signal S2 of one of the sub-pixels (such as the sub-pixel B12 of the pixel P12) provided to any one of the pixels P11 to Pnm (such as the pixel P12) and provide Perform image homogenization on the display image signal S2 of the adjacent pixel (such as pixel P11, which is adjacent to pixel P12) (such as the signal of child pixel B11 provided to pixel P11), and provide the above pixels The display image signal S2 of the other sub-pixels (such as the pixel P12) (such as the sub-pixels W12 or R12 of the pixel P12) performs image compensation to output a data signal S3.

With the above operations, the sub-pixels of any pixel (such as pixel P12) of the display system 100 can perform image homogenization processing with the sub-pixels of adjacent pixels (such as pixel P11). In other words, the above pixels can be Borrow colors from its neighboring pixels to help the above pixels display colors.

For example, pixel P12 itself has no green sub-pixels and cannot display green. However, pixel P12 can be assisted to display green by neighboring pixels P11 (pixel P11 has green sub-pixels G11). Furthermore, the remaining sub-pixels of the above pixels do not assist in displaying colors and retain the original data signal, so that the image to be displayed will not be averaged and blurred with the background, and the black and white lines can be effectively distinguished by the user. In addition, the remaining sub-pixels of the above pixels can be based on the input of adjacent pixels. Saturation of the image signal and adaptive image compensation. As shown above, when the saturation of the image is high, the remaining sub-pixels of the above pixels need to be image-compensated; if the saturation is low, the remaining sub-pixels of the above-mentioned pixels can be determined according to the size of the saturation. The amount of compensation is used to solve at least one of the problems of jagged images (such as discontinuous lines), uneven light and dark, or overflowing colors.

Please continue to refer to FIG. 1. The pixels P11 to Pnm are arranged as a matrix of n columns and m rows, and n and m are positive integers. The filter 114 pairs the sub pixels (such as sub pixels B12, W12, R12) provided to the pixel (such as pixel P12) with the neighbors (such as sub pixels) Pixel B12) display image signal S2 and adjacent image pixels (such as pixel P11) display image signal S2 (such as the pixel B11 signal provided to the child pixel P11) to perform image homogenization processing, and provide to the above-mentioned image The display image signal S2 of the sub-pixels (such as sub-pixels B12, W12, R12) of the pixel (such as sub-pixel B12, W12, R12) that are not adjacent to the rest of the pixels in the same column (such as the sub-pixel W12 of pixel P12) Perform image compensation to output data signal S3. The above image compensation method will be described in detail later.

FIG. 2 is a schematic diagram of a display system 100A according to an embodiment of the present invention. Compared with the display system 100 in FIG. 1, the arrangement direction of the sub-pixels in the pixels P11 to Pnm of the display system 100A in FIG. 2 is different. Specifically, the sub-pixel arrangement direction of the display system 100 in FIG. 1 is parallel to the transmission direction of the gate signals of the gate lines G1 to Gn, and the sub-pixel arrangement direction of the display system 100A in FIG. 2 is parallel to the data lines. Transmission direction of data signals D1 ~ Dm. As shown in FIG. 2, the filter 114 pairs the sub-pixels (such as sub-pixels B21, W21, R21) provided to the pixel (such as pixel P21) with the remaining pixels (such as pixels) in the same line. P11) Display image signal S2 of neighboring pixels (such as sub-pixel B21) and display image signal S2 of neighboring pixels (such as sub-pixel B11) (such as the sub-pixel B11 signal provided to pixel P11) for image homogenization Processing, and for those sub-pixels (such as sub-pixels B21, W21, R21) provided to the above-mentioned pixels (such as pixel P21) that are not adjacent to the rest of the pixels in the same row (such as the child pictures of pixel P21) Element W21) displays image signal S2 to perform image compensation to output data signal S3.

Please refer to Figure 1 and Figure 2 together. The filter 114 pairs are provided to the 1 + 3x subpixels in the same column (such as the first column of Figure 1) or the same row (such as the first row of Figure 2). (Such as W11, B12, G13 ..., R1m in the first column of Figure 1, or W11, B21, G31 ..., Rn1 in the first row of Figure 2) display image signal S2 and adjacent pixels (such as Figure 1 The adjacent pixel of B12 in the first column is the pixel P11, or the adjacent pixel of B21 in the first row of Figure 2 is the pixel P11) (if provided to the first column of Figure 1) The signal of the child pixel B11 of the pixel P11, or the signal of the child pixel B11 of the pixel P11 provided in the first line of FIG. 2) is used for image homogenization, and the image is provided to the same column (such as the first column of FIG. 1) or The remaining sub-pixels in the same row (such as the first row in Figure 2) (such as R11, G11, W12, R12, B13, W13 ..., G1m, B1m in the first column in Figure 1), or the first row in Figure 2 R11, G11, W21, R21, B31, W31 ..., Gn1, Bn1) display image signal S2 to perform image compensation to output data signal S3, where x is a non-negative integer.

In another embodiment, please refer to FIG. 1 and FIG. 2 together. The filter 114 pairs are provided to the same column (such as the first column of FIG. 1) or the same row (such as the first row of FIG. 2). 1 + 3x and 2 + 3x sub-pixels (such as W11 and R11, B12 and W12, G13 and B13 ..., R1m and G1m in the first row of Figure 1, or W11 and R11 in the first row of Figure 2 , B21 and W21, G31 and B31 ..., Rn1 and Gn1) display image signal S2 and adjacent pixels (such as the adjacent pixel of B12 in the first column of Figure 1 is pixel P11, or the adjacent pixel of B21 in the first row of Figure 2 is pixel P11 ) Display image signal S2 (if provided to the sub-pixels B11 and W11 signals of the pixel P11 in the first column of Figure 1, or to the sub-pixels B11 and W11 signals of the pixel P11 in the first row of Figure 2) The image is homogenized, and the remaining sub pixels (such as G11, R12 in the first column of Figure 1) provided in the same column (such as the first column in Figure 1) or the same row (such as the first row in Figure 2) , W13 ..., B1m, or G11, R21, W31 ..., Bn1) in the first line of Figure 2 displays the image signal S2 for image compensation to output the data signal S3, where x is a non-negative integer.

In another embodiment, please refer to FIG. 1 and FIG. 2 together. The filter 114 pairs are provided to the same column (such as the first column of FIG. 1) or the same row (such as the first row of FIG. 2). 1 + 3x and 3 + 3x sub-pixels (such as W11 and G11, B12 and R12, G13 and W13 ..., R1m and B1m in the first row of Figure 1, or W11 and G11 in the first row of Figure 2 , B21 and R21, G31 and W31 ..., Rn1 and Bn1) display image signal S2 and adjacent sub-pixels (such as the adjacent pixel of B12 in the first column of Figure 1 is pixel P11, or Figure 2 Adjacent pixels of B21 in a row are pixels P11). Display image signal S2 (if provided to the sub-pixels B11 and R11 of pixel P11 in the first column of Figure 1, or to the first row of Figure 2 (Pixels B11 and R11 of the child pixel P11) for image homogenization, and the rest of the sub-pictures provided in the same column (such as the first column of Figure 1) or the same row (such as the first row of Figure 2) Element (such as R11, W12, B13 ..., G1m in the first column of Figure 1, or R11, W21, B31 ..., Gn1 in the first row of Figure 2) to perform image compensation to output data signal S3, Where x is a non-negative integer.

In another embodiment, please refer to FIG. 1 and FIG. 2 together. The wave filter 114 pairs 2 + 3x and 3 + 3x sub-pixels provided in the same column (such as the first column in FIG. 1) or the same row (such as the first column in FIG. 2) (such as the first column in FIG. 1). R11 and G11, W12 and R12, B13 and W13 ..., G1m and B1m, or R11 and G11, W21 and R21, B31 and W31 ..., Gn1 and Bn1) in the first row of Figure 2 Display image signal S2 of S2 and adjacent pixels (such as the adjacent pixel of W12 in the first column of Figure 1 is pixel P11, or the adjacent pixel of W12 in the first row of Figure 2 is pixel P11) (If provided to the sub-pixels W11 and R11 signals of the pixel P11 in the first column of FIG. 1 or the sub-pixels W11 and R11 signals of the pixel P11 in the first row of FIG. 2) to perform image homogenization processing, and For the remaining subpixels (such as W11, B12, G13 ..., R1m in the first column of Figure 1) provided in the same column (such as the first column of Figure 1) or the same row (such as the first column of Figure 2), Or the display image signal S2 of W11, B21, G31 ..., Rn1) in the first line of FIG. 2 performs image compensation to output a data signal S3, where x is a non-negative integer. It should be noted that in the second figure, each pixel is presented in a different filling method, which is beneficial to distinguish the pixels. For example, pixel P11 is filled with diagonal lines from top right to bottom left, pixel P21 is filled with dots, and pixel P31 is filled with diagonal lines from top left to bottom right, which is helpful to distinguish different pixels.

FIG. 3 is a schematic diagram illustrating an image compensation method of a display system according to an embodiment of the present invention. Please refer to FIG. 1, FIG. 2 and FIG. 3 together. First, the nine-square grid shown in FIG. 3 is used to indicate the arrangement relationship between pixels of the display system 100 and 100A. The grid labeled P9 in the figure is For example, it represents any pixel in the display system 100, 100A. The grids labeled P8 and P4 represent pixels in the same row as the pixel P9. The grids labeled P2 and P6 represent pixels that are in the same row as the pixel P9. The grids of P1, P3, P7, and P5 represent the upper left of the pixel P9, Top right, bottom left, bottom right pixels. The image compensation performed by the filter 114 is to perform saturation calculation on the display image signal S2 provided to the second pixel P8 adjacent to the first pixel P9 to obtain a saturation value, and to perform image compensation based on the saturation value.

Figures 4A to 4E are schematic diagrams illustrating a calculation method of a saturation value of a display system according to an embodiment of the present invention. Please refer to FIG. 4A. When the saturation value approaches zero, the display image signal S2 provided to the first pixel (such as the center pixel) is not displayed to the second pixel (such as the left pixel). The image signal S2 performs image compensation (borrowing). For example, when the display system 100 is used to display blue text, pixels in the text are displayed in blue, and adjacent pixels outside the text are displayed in white. Since the saturation value of the adjacent pixels approaches zero, Perform image compensation (borrowing color) to prevent the text from appearing blurry after image compensation of the desired text and background. The above-mentioned calculation of the saturation and the saturation-related reference value are not limited to the calculation and storage of the reference value by the filter 114. In some embodiments, the image converter 112 may also calculate and store the reference value.

For example, please refer to FIG. 3 first. The numbers P1 to P9 in the figure are pixels. It is assumed that the arrangement of the sub pixels of pixel P8 is red sub pixels, green sub pixels, and blue sub pixels. Pixels, the sub-pixels of pixel P9 are arranged in order of white sub-pixel, red sub-pixel, and green sub-pixel. In addition, the red (Rin), green (Gin), blue (Bin), and white (Win) of the pixel P8 are 128, 128, 128, and 128, respectively, and the red (Rin) and green (Gin) of the pixel P9 are input. , Blue (Bin), and White (Win) are 0, 64, 128, 0, respectively. The above values are brought into the saturation formula as follows:

After calculation, the saturation of pixel P8 is 0, and the saturation of pixel P9 is 1. When recalculating the signal of pixel P9, the reference pixel is the pixel P8 on the left. Specifically, when recalculating the signal of pixel P9, it is the saturation of the reference pixel P8. The saturation of P8 is 0 and falls in the interval of 0 ~ 0.2. Therefore, referring to the saturation reference interval of Figure 4A, the calculation method is as follows: P 9 ( W ) = 0.5 × P 8 ( W ) + 0.5 × P 9 ( W ) = 64 + 0 = 64

P 9 ( R ) = 0 × P 8 ( R ) + 1 × P 9 ( R ) = 0 + 0 = 0

P 9 ( G ) = 0 × P 8 ( G ) + 1 × P 9 ( G ) = 0 + 64 = 64

As shown above, because the white sub-pixel ( P9 (W) ) is the leftmost sub-pixel of pixel P9, it is fixed by image homogenization (that is, P8 (W) and P9 (W) on the left side of pixel P9 are taken . Perform homogenization (both image data are multiplied by 0.5), and the remaining subpixels are recalculated according to the saturation reference interval of Figure 4A (such as the image of P8 (R) on the left of pixel P9 Multiply the data by 0, and multiply the image data of P9 (R) by 1)).

In an embodiment, please refer to FIG. 4A to FIG. 4E together. When the saturation value is higher, the display image signal S2 pair provided to the first pixel (such as the central pixel) is provided to the second image. The higher the image compensation by the display image signal S2 of the pixel (such as the pixel on the left).

For example, please refer to FIG. 1, FIG. 2, and FIG. 3 together. The image converter 112 provides the display image signal S2 to the filter 114, and the filter 114 stores the images shown in FIGS. 4A to 4E. For the saturation reference interval, if the nine-square grid shown in Figure 3 is used as a control frame (Mask), when the pixel to be recalculated is the pixel P21 of Figure 1, the position of P9 in the control frame can be aligned with the pixel. P21, At this time, since P8 of the comparison box in FIG. 3 does not match any pixel in FIG. 1, in this case, the saturation reference interval in FIG. 4A will be referred to. .

Furthermore, the display image signal S2 of the second line pixel P9 in FIG. 3 is calculated by referring to the original input of the corresponding first line pixel P8. For example, when calculating the pixel P9, refer to the pixel P8's Saturation 0.4 calculated from the original input of image signal S2, and the saturation reference interval of Figure 4C is selected. Multiply the display image signal of pixel P9 by 0.75 and the display image signal of pixel P8 by 0.25 to obtain a new value. The video signal is displayed.

In another embodiment, please refer back to FIG. 1 and FIG. 2. The filter 114 is used to perform image compensation on the display image signal S2 provided to all pixels to output a data signal S3. As described in the embodiment of the figure, for brevity of the description of the invention, it will not be repeated here.

FIG. 5 is a flowchart illustrating a driving method 500 according to an embodiment of the present invention. As shown in the figure, the driving method 500 of the present case includes the following steps: step 510: converting an input image signal into a display image signal; step 520: displaying an image signal of one of the sub-pixels provided to the pixel and providing Display image signals of adjacent pixels of the pre-pixels are subjected to image homogenization processing; and step 530: image compensation is performed on the display image signals provided to the other one of the sub-pixels to output data signals.

In order to make the driving method 500 of the embodiment of this case easy to understand, please refer to FIG. 1, FIG. 2, and FIG. 5 together. In step 510, the input image signal S1 is converted into a display image signal S2 by the image converter 112. At step 520 In the display image signal S2 of one of the sub-pixels (such as the sub-pixel B12 of the pixel P12) provided to any one of the pixels P11 to Pnm (such as the pixel P12) by the filter 114 And the display image signal S2 (such as provided to the picture) provided to one of the sub-pixels (such as the pixel P11, which is adjacent to the pixel P12) (such as the sub-pixel B11 of the pixel P11) The pixel B11 signal of the child of pixel P11) performs image homogenization processing. In step 530, the display image signal S2 of the other of the sub-pixels (such as the sub-pixels W12 or R12 of the pixel P12) provided to the pixel (such as the pixel P12) is performed by the filter 114. Image compensation to output data signal S3.

In an embodiment, please refer to step 520, by using the filter 114, the sub-pixels (such as the sub-pixel B12) provided to the pixels (such as the pixel P12) are the same as the remaining pixels in the same column (such as the picture). Pixel P11) Display image signal S2 of the neighbor (such as subpixel B12) and display image signal S2 of the adjacent pixel (such as pixel P11) (such as the subpixel B11 signal provided to pixel P11) for image uniformity化 处理。 Processed. Please refer to step 530. The filter 114 pairs the sub-pixels (such as the sub-pixels B12, W12, and R12) provided to the pixels (such as the pixel P12) that are not adjacent to the rest of the pixels in the same column. The display image signal S2 (such as the child pixel W12 of the pixel P12) performs image compensation to output a data signal S3.

In another embodiment, please refer to step 520, by using the filter 114, the sub pixels (such as sub pixels B21) provided to the pixels (such as pixel P21) are the same as the remaining pixels in the same row (such as sub pixels B21). Pixel P11) Display image signal S2 of the neighbor (such as sub-pixel B21) and display image signal S2 of the adjacent pixel (such as pixel P11) (such as the sub-pixel B11 signal provided to pixel P11). Homogenization. Please refer to step 530. The filter 114 is provided to the pixels (such as the picture). Pixel P21), the sub-pixels (such as sub-pixels B21, W21, R21) that are not adjacent to the rest of the pixels in the same row (such as the sub-pixel W21 of pixel P21) display image signal S2 to perform image compensation to Output data signal S3.

FIG. 6 is a flowchart illustrating a driving method according to another embodiment of the present invention. As shown in the figure, the driving method 600 of the present case includes the following steps: step 610: converting an input image signal into a display image signal; and step 620: performing image compensation on the display image signal provided to all sub-pixels to output a data signal.

In order to make the driving method 600 of the embodiment of this case easy to understand, please refer to FIG. 1, FIG. 2, and FIG. 6 together. In step 610, the input image signal S1 is converted into a display image signal S2 by the image converter 112. In step 620, the display image signal S2 provided to all the sub-pixels is image-compensated by the filter 114 to output a data signal S3. Referring to FIG. 3, the image compensation performed in step 620 is to perform saturation calculation on the display image signal S2 provided to the second pixel P8 adjacent to the first pixel P9 to obtain a saturation value, and according to the saturation value For image compensation.

In an embodiment, please refer to FIGS. 4A to 4E. When the saturation value is higher, the display image signal S2 pair provided to the first pixel (such as the central pixel) is provided to the second pixel ( (As the pixel on the left), the higher the image compensation performed by the displayed image signal S2 (no compensation in Figure 4A (borrowed color), compensation in Figure 4B (borrowed color) 0.125, compensation in 4C (borrowed color) 0.25, 4D Compensation (borrowing color) 0.375 and 4E Compensation (borrowing color) 0.5).

In an embodiment, please refer to FIG. 4A, when the saturation value approaches At zero, the display image signal S2 provided to the first pixel (such as the central pixel) does not perform image compensation (borrowing) on the display image signal S2 provided to the second pixel (such as the left pixel). When the saturation value approaches the highest saturation value, the display image signal S2 provided to the first pixel (such as the central pixel) is compensated (borrowed), and half of the value is provided to the second pixel (such as the left side). Pixels) display image signal S2.

It can be known from the foregoing embodiments of the present application that the application of the present application has the following advantages. The embodiment of the present invention provides a driving device and a driving method, so as to improve the problem that the average filter will cause the text to be blurred and the black and white lines will not be effectively resolved, and to improve the discontinuity and overflow of complementary color lines caused by the use of the diamond filter. , And will cause problems with abnormal brightness and color shift of black and white lines.

Although the specific embodiments of the present case are disclosed in the above embodiments, they are not intended to limit the present case. Those who have ordinary knowledge in the technical field to which this case belongs can be carried out without departing from the principles and spirit of this case. Various changes and modifications, so the scope of protection in this case shall be defined by the scope of the accompanying patent application.

Claims (20)

A driving device is applied in a display system, the display system includes a plurality of pixels, each of the pixels includes a plurality of sub pixels, and the driving device includes: an image converter for converting an input image The signal is converted into a display image signal; and a filter for the display image signal for one of the sub-pixels provided to one of the pixels and an adjacent one provided to the pixel The display image signal of the pixel is subjected to image homogenization processing, and the display image signal provided to the other one of the sub pixels is subjected to image compensation to output a data signal. The driving device according to claim 1, wherein the pixels are arranged as a matrix of n columns and m rows, and n and m are positive integers, and the filter pair provides the sub-pixels of the pixel with The display image signal of the adjacent pixels in the same column and the display image signal of the adjacent pixels are subjected to image homogenization processing, and the sub-pixels provided to the pixel are not the same as the remaining images in the same column. The display image signals of the neighboring neighbors are subjected to image compensation to output data signals. The driving device according to claim 1, wherein the pixels are arranged as a matrix of n rows and m columns, and n and m are positive integers, wherein the filter pair and the sub pixels provided to the pixel are equal to The display image signals of the neighbors of the remaining pixels in the same line and the display image signals of the adjacent pixels are subjected to image homogenization processing. The display image signals of the neighboring neighbors are subjected to image compensation to output data signals. The driving device according to claim 1, wherein the pixels are arranged as a matrix of n rows and m columns, and n and m are positive integers, wherein the filter pair is provided to the 1st + 3x in the same column or the same row. The display image signals of the individual sub-pixels and the display image signals of adjacent pixels are subjected to image homogenization processing, and the display image signals provided to the remaining sub-pixels in the same row or the same row are image-compensated to output data. Signal, where x is a non-negative integer. The driving device according to claim 1, wherein the pixels are arranged as a matrix of n rows and m columns, and n and m are positive integers, wherein the filter pair is provided to the 1st + 3x in the same column or the same row. And display image signals of the first and second 2 + 3x sub-pixels and adjacent display pixels of the display image signal are subjected to image homogenization processing, and the display image signals provided to the remaining sub-pixels in the same column or row Perform image compensation to output data signals, where x is a non-negative integer. The driving device according to claim 1, wherein the pixels are arranged as a matrix of n rows and m columns, and n and m are positive integers, wherein the filter pair is provided to the 1st + 3x in the same column or the same row. And the 3 + 3x sub-pixels of the display image signal and adjacent display pixels of the display image signal for image homogenization processing, and the display image signals provided to the remaining sub-pixels in the same row or the same row Perform image compensation to output data signals, where x is a non-negative integer. The driving device according to claim 1, wherein the display system includes a plurality of pixels arranged as a matrix of n rows and m columns, and n and m are positive integers, wherein the filter pair is provided to the same column Or, the display image signals of the 2 + 3x and 3 + 3x sub-pixels in the same row and the display image signals of adjacent pixels are subjected to image homogenization processing, and the images provided to the same column or the same row are processed. The display image signals of the remaining sub-pixels are image-compensated to output data signals, where x is a non-negative integer. The driving device according to any one of claims 1 to 7, wherein the image compensation performed by the filter is performed on the second pixel adjacent to a first pixel provided to the pixels. The input image signal is subjected to saturation calculation to obtain a saturation value, and the image compensation is performed according to the saturation value. The driving device according to claim 8, wherein when the saturation value is higher, the image compensation provided by the display image signal provided to the first pixel to the display image signal provided to the second pixel is more high. The driving device according to claim 8, wherein when the saturation value approaches zero, the display image signal provided to the first pixel does not perform image compensation on the display image signal provided to the second pixel. . A driving device is applied in a display system, the display system includes a plurality of pixels, each of the pixels includes a plurality of sub pixels, and the driving device includes: an image converter for converting an input image The signal is converted into a display image signal; and a filter for performing image compensation on the display image signal provided to the sub-pixels to output a data signal, wherein the image compensation performed by the filter is provided to the The display image signal of a second pixel adjacent to a first pixel among the pixels is subjected to saturation calculation to obtain a saturation value, and the image compensation is performed according to the saturation value. The driving device according to claim 11, wherein when the saturation value is higher, the image compensation provided by the display image signal provided to the first pixel to the display image signal provided to the second pixel is increased. high. The driving device according to claim 12, wherein when the saturation value approaches zero, the display image signal provided to the first pixel does not perform image compensation on the display image signal provided to the second pixel. . The driving device according to claim 13, wherein when the saturation value approaches the highest saturation value, the display image signal provided to the first pixel compensates half of its value to the second pixel. The display image signal. A driving method for driving a display system, wherein the display system includes a plurality of pixels, each of the pixels includes a plurality of sub-pixels, and the driving method includes: converting an input image signal into a display image Signal; performing image homogenization processing on the display image signal of one of the sub-pixels provided to one of the pixels and the display image signal of an adjacent pixel provided to the pixel; And performing image compensation on the display image signal provided to the other one of the sub-pixels to output a data signal. The driving method according to claim 15, wherein the pixels are arranged as a matrix of n columns and m rows, and n and m are positive integers, wherein the one of the sub pixels provided to the pixel is The image homogenization processing of the display image signal and the display image signal provided to the adjacent pixel includes: the display image signal of the sub-pixels provided to the pixel and the neighbors of the remaining pixels in the same row And the display image signal of the adjacent pixel is subjected to image homogenization processing; wherein the image compensation of the display image signal provided to the other one of the sub-pixels to output a data signal includes: providing the pixel to the pixel The sub-pixels are not image-compensated with the display image signals adjacent to the rest of the pixels in the same row to output data signals. The driving method according to claim 15, wherein the pixels are arranged as a matrix of n columns and m rows, and n and m are positive integers, wherein the one of the sub pixels provided to the pixel is The image homogenization processing of the display image signal and the display image signal provided to the adjacent pixel includes: the display image signal of the sub pixels provided to the pixel adjacent to the rest of the pixels in the same row And the display image signal of the adjacent pixel is subjected to image homogenization processing; wherein the image compensation of the display image signal provided to the other one of the sub-pixels to output a data signal includes: providing the pixel to the pixel Among these sub-pixels, image compensation is not performed on the display image signals adjacent to the rest of the pixels in the same line to output data signals. A driving method for driving a display system, wherein the display system includes a plurality of pixels, each of the pixels includes a plurality of sub-pixels, and the driving method includes: converting an input image signal into a display image Signals; and performing image compensation on the display image signals provided to the sub-pixels to output data signals, including: providing the second pixels adjacent to a first pixel among the pixels, the Display the image signal to perform saturation calculation to obtain a saturation value; and perform the image compensation according to the saturation value. The driving method according to claim 18, wherein when the saturation value is higher, the image compensation provided by the display image signal provided to the first pixel to the display image signal provided to the second pixel is more high. The driving method according to claim 18, wherein when the saturation value approaches zero, the display image signal provided to the first pixel does not perform image compensation on the display image signal provided to the second pixel Wherein, when the saturation value approaches the highest saturation value, the display image signal provided to the first pixel compensates half of its value to the display image signal provided to the second pixel.