TWI246047B - Pixel driving module of display - Google Patents

Abstract

A pixel driving module of display is disclosed, wherein a pixel device is formed by sub-pixels selected from elements emitting red, green, blue color lights respectively, the sub-pixels controlling plural color elements. Any one or two sub-pixels in the pixel device can be selected to be elongated in width, and the sub-pixel with the width elongated can be shared with the adjacent pixels, so that the number of sub-pixels is reduced, the yield rate of the process is increased, and the resolution of the display is enhanced. Also, to prevent the image distortion due to the elongation or shortening of width of the sub-pixels, the driving value to drive each sub-pixel is the average of the driving value of each of the originally adjacent sub-pixels with the same color multiplied with the weight.

Description

1246047 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention is a pixel driving module for a display, which is mainly directed to three color elements that emit red light (R), green light (G), and blue light (b). The sub-pixel arrangement method and its corresponding driving value. [Previous technology] The rapid development of the semiconductor industry and related technologies have enabled the key components of notebook computers: amorphous silicon thin-film transistor liquid crystal displays (Am〇rph〇us

Silicon Thin-Film-Transistor Liquid Crystal

D i sp 1 ay) and low temperature polycrystalline silicon thin film transistor liquid crystal display (Temperature Poly-Silicon TFT-LCD) technology has a considerable success, after that, another new generation of flat-panel display organic electro-optical display

Device technology (Organic Electroluminesence Display; oELD), or organic light emitting diode (OLED light emitting display panel (〇rganic Light Emitting Diode; oLED)), which has been successfully developed and based on portable portable consumer products. ... with the arrangement of the sub-pixels of the color elements conventionally used in the above-mentioned displays, such as linear, literary, diagonal, mosaic, and square. The lines are arranged in a square pattern, as shown in the first figure, which are arranged in red (R), green (G) blue, and (ΰ) in a line stripe pattern.

It is known that the analog image data is converted into digital signals and amplified. Then, the image is read in the body, then read the adjacent left and right in the image data = · =, add and divide by a constant. Although this device can effectively increase the resolution, S Ϊ f ί is too large. Or, the arrangement and sampling method of image data is simple and can reduce the resolution, but the method of image sampling

Page 5 1246047 V. Description of the invention (2) The formula is too simple, causing obvious image distortion. In addition, "Method of displ aying a high-resolution digital color image on a low resolution dot-matrix display with high fide 1 i ty" of US Patent No. US6198467 uses a special R, G, B color filter structure , With the algorithm, to achieve the purpose of reducing the number of sub-pixels and increasing the resolution; however, because it needs to match the color filter structure it designed, and its algorithm is also very complicated, you must design a dedicated field programmable gate array (Fie 1 d Programmable Gate Array; FPGA). Also, 'Apparatus and method for converting the resolution an image to a resolution of LCD monitor' of U.S. Patent No. 6,181,318, which uses two methods, DCT (Discrete Cosine Transform) and IDCT (Inverse Discrete Cosine Transform), to convert The screen resolution is, of course, the data conversion method is too complicated, and it is easy to cause obvious system delay. [Summary of the Invention] The main purpose of the present invention is to solve the above-mentioned defects and avoid the existence of the defects. The present invention uses a simple algorithm and can adjust the width of the sub-pixels to improve the yield of the process. Another object of the present invention is to reduce the number of sub-pixels by sharing sub-pixels between two adjacent pixel devices. To achieve the above-mentioned object, the present invention is mainly based on controlling sub-pixels of color elements of a plurality of colors, which are respectively selected from red light (R) and green light.

V. Description of the invention (3) Second) Blue light (two or three color device sub-devices, where the pixel can be set to any pixel = pixel reduction sub: prime number 'and improve the common screen distortion' to drive each sub-pixel The driving value is the average driving weight of the original image subpixels and multiplied by the weight, in which the width of the missing pixel is half the width of the pixel. [Embodiment] The detailed description and technical level of the present invention are as follows: Please refer to the "Figure 2" for the matching diagram. It is a M 7 figure, as shown in the figure. The pixel arrangement of the present invention is illustrated by controlling a plurality of colors: color; prime driving mode Group, color light, green light, blue m) three elements = selected from the red sub-pixels to form a pixel device, the contrast between the light and dark and gray levels of the element to make the display; Among the color photon pixels, the pixel device displays the color image; the width is long or the width is reduced, and the sub-pixel or a sub-pixel addition device can share the sub-pixels. Subtraction = adjacent pixels, plus display Parsing degree. Thousands of pixels are set, and the yield rate distortion of the process is improved, and the width of the sub-pixels is lengthened or reduced, which causes the driving value of the sub-pixels to be moved on the image. The original value is the same as the original adjacent ^ 1246047 V. Description of the invention (4) — The driving values are multiplied by weights on average, where the width of the common sub-pixels is inversely proportional; 1 ,: the width of the primes in an octane device is inversely proportional to half; its calculation method is: Qi Ru; the common sub-image γ m in the set, η = [(Ym, n + Ym, n +1) / 2] Z m, n = B x Zm, n, where Y 'is the corresponding sub-pixel in the display panel of the present invention, and Z, is the uncleaned item # <# γ shared by pixel devices is the traditional ㈣ == /////// pixels; sub-pixels are pixels that are not adjacent to each other; shared m indicates that the sub-pixels are located in the display panel. / J is located in the vertical column of the display panel; K 11 indicates that the sub-pixels 忒 A and β are weights, and the weight of the weight is inversely proportional to the width; 1, half of the unshared sub-images in the disk image are inversely proportional. /, The width of the sub-pixels in the pixel device. Traditional pixels] Ϊ: each ::: The material is R1, G1, B1, and m 2 as shown in the figure. 4], 4_ The embodiment of this image of the sun and the moon is not intended, as shown in the figure: The pixel is Λ 4 ί The device takes the sub-color light (g / width to red light (R) and green light (G) to Twice the width 2X 'The weight of the red & (R) and green driving values is weighted / can be shared by adjacent pixel devices', so its .ΗM, the width of unshared subpixels in the pixel device Inverse '/ Inversely proportional to half the width of the sub-pixel shared in pixel placement; • Weight ratio of G 1 = 1 / χ: 1 / χ: 1 / χ = 1

1246047 V. Description of the invention

Odd rows: That is, Rl = [(Rl + R2) / 2] xi ΒΓ -1 X B1 GT-[(G1 + G2) / 2) X 1 B2, = 1 X B2 Even rows: That is, Gl = [( Gl + G2) / 2) xl ΒΓ = 1 x B1

Rl = [(R1 + R2) / 2] xi B2, = 1 x B2 In addition, if the pixel device of the present invention cannot reach the white balance (White baiance) when the driver is illuminated, a comparison table (L0〇k ; LUT) method to adjust its ratio. ble Please refer again to "shown in Figure 5 and Figure 5-2", the intention of the first embodiment of the present invention is as shown in the figure: the original image data is R1, G: traditionally assumed; The width of each sub-pixel is 乂, then the real pixel device takes the length of the blue light (B) and the green light to 2.5 times the width, that is, 2 · 5χ, the sub-image of the red light (R):

Page 9 1246047 V. Description of the invention (6) It is reduced to 0.5 times the width of 0.5X. The sub-pixels of the blue light (B) and green light (G) can be shared by adjacent pixel devices, so its The weight of the driving value is inversely proportional to the width of the unshared sub-pixels in the pixel device, and is inversely proportional to half of the width of the sub-pixels shared in the pixel device; therefore, the weight ratio of R: G: B = 1 / 1.25 \: 1 / 0.5 乂: 1 / 1.25 \ two 2: 5: 2 = 4/5: 2: 4/5 Odd-numbered rows: ie Bl, = [(B1 + B2) / 2] X 4/5 Rl '= R1 X 2

Gl, = [(G1 + G2) / 2] X 4/5 R2, = R2 x 2 Even rows: ie Gl, = [(G1 + G2) / 2] X 4/5 Rl '= R1 X 2 ΒΓ = [(B1 + B2) / 2] X 4/5 R2 '= B2 x 2 In addition, if the pixel device of the present invention cannot reach the white balance when the driver is illuminated, a look-up table (Look Up Table

Page 10 1246047 V. Explanation of the invention (Ό; LUT) method to adjust the ratio Please refer to "Figure 6-1, 6-2 for the purpose of the example, as shown in the figure: the original 妗 jinshi", is the invention The third reality assumes that each element & plain shirt image data in the conventional pixel device is R1, Gl, B1, and the odd-numbered row pixel device takes a blue well ^ width X, then the degree of this embodiment is 3X, rural labor color light (R) & green (B) is extended to 3 times the original width X, the sub-pixel widths of the blue light (B) and) are maintained for the adjacent pixel devices, so = colored sub-pixels The width of the unshared sub-pixels that can be centered is inverse; the weight of the driving value is inversely proportional to half the width of the sub-pixels of the pixel; and, the weight ratio of R shared with the pixel device is 1/0 2 ~ 2 · 1 · 2/3 · 1 / Χ · 1/1 · 5Χ-6.3: Odd rows: R1 '= [(R1 + R2) / 2] X 2 Gl, = G1 X 1 = [(B1 + B2) / 2] χ 2/3 G2, = G2 x 1 times the even-numbered row pixel device takes red light (R) to extend the width to 3 and holds the sub-pixel width of 3X 'blue light (β) and green light (G) Vekkohara Of X 'the blue light (beta]) and red light (r) of the sub-pixels', common to the adjacent pixel device, so that the right drive system and the image values of the weight

1246047 V. Description of the invention (8) The width of the unshared sub-pixels in the pixel device is inversely proportional, and is inversely proportional to half the width of the sub-pixels shared in the pixel device; therefore, the weight ratio of R: G: B = 1 / 1.5X: 1 / Χ: 1/0 · 5Χ = 2: 3: 6 = 2/3: 1: 2 Even rows: Bl, = [(B1 + B2) / 2] X 2 GT = G1 X 1

Rl, = [(R1 + R2) / 2] X 2/3 G2 ’two G2 X 1

In addition, if the pixel device of the present invention cannot reach the white balance when the light is driven, the ratio can be adjusted by a Look Up Table (LUT) method.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited, that is, all equal changes and modifications made in accordance with the scope of the patent application of the present invention shall still belong to the patent of the present invention Covered.

Page 12 1246047 Brief description of the drawings [Simplified description of the drawings] Figure 1 is a structural schematic diagram of the conventional line-stripe arrangement. FIG. 2 is a schematic diagram of sub-pixel arrangement of the present invention. Figures 3-1 and 3-2 are schematic diagrams of conventional image implementations. Figures 4-1 and 4-2 are schematic diagrams of the first embodiment of the present invention. 5-1 and 5-2 are schematic diagrams of a second embodiment of the present invention. Figures 6-1, 6-2 are schematic views of the third embodiment of the present invention. [Illustration of Symbols in the Schematic]

Pixel device ... 11

Red light ................... R

Green light .............. G

Blue light ......... B

Page 13

Claims (1)

1246047 VI. _Please patent scope [Scope of patent application] I. A "°" driver module of a color element of a display color is controlled by controlling a plurality of color lights "), blue 弁 J prime two are selected from red light (R) The green pixel device uses two sub-pixels of two color elements to make the display: the contrast between the light and shade of the color photo sub-pixel and the gray level can be selected-a sub-H: the effect of the image 1 in the pixel device The number, ·, allows adjacent pixel devices to share sub-pixels, and the driving value of the sub-image sub-image i drive is the original m of the adjacent adjacent same color m multiplied by the weight. The first item of the group Λ, Zhong Ruoli range = ί the pixel driving mode of the display is inversely proportional; and 'the width of the sub-pixel shared by the pixel device is like !, and the Λ, Zhong Ru range of the patent application is the second item in the household! In the pixel driving mode 28, the right pixel device cannot achieve white balance when the driver is redundant, and its ratio can be adjusted by a Look Up Table (LUT) method. Page 14