TW200421244A - 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

200421244 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 made amorphous silicon, a thin film transistor liquid crystal display, a key component of notebook computers.

Silicon Thin-Film-Transistor Liquid Crystal

Display) and low-temperature polycrystalline silicon thin-film transistor liquid crystal display (L〇w

Temperature Poly-Silicon TFT-LCD) technology has achieved considerable success. ’After this, another new generation of flat-panel organic light-emitting diode displays

Device technology (Organic Electroluminesence Display; 0ELD), or light-emitting display panel (Organic L2mmitting Diode; Oled), has been successfully developed and applied to portable portable consumer products. Chromium # = 刖 ^ The sub-pixel arrangement of the conventional color elements of the display device is arranged in a line i-shaped s? W two-cornered shape, mosaic shape and square shape. Line B) Cheng Jun ^ As shown in the first figure, the red (R) green (G) blue () lines are arranged in a linear stripe pattern. Storage: image series: analog image data is converted into digital signals and amplified, and ί :; in memory, then read the adjacent left and right in the image data, but its installation = divided by a constant. Although this device can effectively increase the resolution, there is a calculation sheet = huge. Or, the arrangement and sampling method of the image data is early and achieves the purpose of reducing the resolution, but the method of sampling the image is 200421244 V. Description of the invention (2) The formula is too simple, which causes obvious distortion of the image. In addition, U.S. Patent No. US 6 1 98467 "Method of displ aying a high-reso 1 ution digital color image on a low resolution dot-matrix display with high fide 1 ity" uses special R, G, and B colors. The filter structure, combined with the algorithm, achieves the purpose of reducing the number of sub-pixels and increasing the resolution; however, because it needs to be matched with the color filter structure that it is designed, and its algorithm is also very complicated, it is necessary to design a dedicated field. Stylized gate array

Programmable Gate Array (FPGA).

Also ’U.S. Patent No. 6,181,318,“ Apparatus and method for converting the resolution an image to a

resolution of LCD monitor ", using DCT (Discrete Cosine Transform) and IDCT (Inverse

Discrete Cosine Transform), the conversion of the screen resolution ’is too complicated, and it is easy to cause significant system delay. · [Inventive Content]

That is, 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 process yield. Another object of the present invention is to reduce the number of sub-pixels by sharing pixels with two adjacent pixel devices. In order 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 and green light.

Page 6 200421244 ---- _ V. Description of the invention (3) (G), blue light (b) ::: green device 'where the image is "centered :::::::-pixel length K :: The resolution of the sub-pixels with longer width, and in order to avoid the distortion of the picture like the display resolution of the display, driving each child to go long or reduce the width of the sub-pixel driving value of the image averagely re-drive = original phases The width of the unshared sub-pixels adjacent to the same color is heavy: ::: half of the width of the pixels in the device is inversely proportional. 共用 shared in a pixel device [Embodiment] A detailed description of the present invention is + + as follows: "Technical inner valley" will now be described in conjunction with the drawings. Fig. 2 "Reading the second picture of the household display" is a sub-pixel arrangement of the present invention with multiple colors of plain hair f colored light (R), green light (G), blue色 来 _, 发 ,, and 子 傻 去 a 搂 # 你 i Monitor the light and dark and grayscale contrast of the two color elements (B) to make the display achieve a full color display pixel. Among them, the pixel One or two 2 degrees or reduced widths can be selected in the device 11, and the arrangement of the sub-pixels can be used at the same time. Can share sub-pixels, reduce the number of sub-pixels, and improve the process yield and increase the resolution of the display. In order to avoid the day-to-day distortion of the image due to the increase or decrease of the factor pixel width, the driving value of each sub-pixel is driven by The original adjacent colors of the same color = like on page 7, 200421244 V. Description of the invention (4) ίΠϊΠίϊ The weight 'wherein the weight is inversely proportional to the degree in the pixel device ...' and is inversely proportional to half the width of the sub-pixel shared in the pixel device ; Its calculation method is as follows: Y m, n = [(Ym, n + Ym, n + l) / 2] χα Z, m, n = B x Zm, η are adjacent pixels in the display panel of the present invention U shared by the device is a sub-pixel that is not shared with an adjacent pixel device; a sub-image, a sub-pixel shared by the adjacent pixel device in the display panel, and Z is a sub-shared pixel that is not split with an adjacent pixel Subpixels are shown in the first row of the display panel, η indicates the first row of the subpixels in the display panel; Xin's B is the weight, and the weight is not shared with the pixel image in the pixel device ', The car is inversely proportional; and, with the pixel The width shared in the device is inversely proportional to +. The sound in t is shown in Figures 3, 3 and 2 ". It is a conventional image implementation illustration: What is not shown: The original image data is Rl, Gl, B1, It is assumed that the width of each sub-pixel in a 2-prime device is X; please refer to "the first, the fourth one *", which is a schematic diagram of the first embodiment of the present invention, as shown in the figure: The pixel I of the sun and the moon is set The child of red light (R) and green light (G) 'is extended to twice the width, so that the sub pixels of red light (r) and green m ^ \) can be shared by adjacent pixel devices, so its The weight of the ratio and value is inversely proportional to the width of the unshared sub-pixels in the pixel device, and is inversely proportional to half the width of the sub-pixels shared by the pixel device; therefore, the weight ratio of R: G: Β = 1 / x: 1 / x: 1 / x = 1: 1: i

Page 8 200421244

That is, Rl, = [(R1 + R2) / 2] χ 1 B Γ = 1 x B1 G1 = [(Gl + G2) / 2] xi β 2 = 1 x B 2 even rows: that is Gl '= [( G1 + G2) / 2] χ i ΒΓ = 1 x B1

Rl, = [(R1 + R2) / 2] x 1 B2 '= i x B2 n. If the pixel device of the present invention drives the helmet, it will adjust its ratio by the helmet, go, *, LUT) method. p Table 参阅 Refer again to the "Section-?-Example intent, as shown in Figure: Figure 2 does not show", which is the second real hypothetical value of the present invention &# i. The image data is based on, gi, Bi, 1F If the width of the sub-pixels in the I # device is X, then the width of the sub-pixels in this embodiment is set to be longer with blue (B) and green (G) sub-pixels. To 2.5 times the width, that is, 2.5 ×, the sub-pixel width of the red light (R)

200421244 V. Description of the invention (6) is reduced to 0.5 times the width of 0.5 X, then the sub-pixels of the blue light (B) and green light (G) can be shared by adjacent pixel devices, so its driving value The weight is inversely proportional to the width of the unshared sub-pixels in the pixel device, and is inversely proportional to the width of the sub-pixels shared in the pixel device '. Therefore, the weight ratio of R: G: B = 1/1 · 25 ×: 1 〇 · 5 ×: 1/1 · 25 × = 2: 5: 2 = 4/5: 2: 4/5 Odd rows: ie Bl, = [(B1 + B2) / 2] X 4/5 RT = R1 X 2

Gl, = [(G1 + G2) / 2] X 4/5 R2 '= R2 X 2 Even rows: Gl' = [(G1 + G2) / 2] X 4/5 R1 '= 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 can be used.

Page 10 200421244

; LUT) method to adjust its ratio. The example diagram "Γ" r, which is the third embodiment of the present invention, assumes that each pixel in the conventional pixel device is R1, G1, β1 '. The element device takes blue light and lengthens it to two wide lights (R ) And the width of the sub-pixels of the green light are kept adjacent to you, then the sub-pixels of the blue light (B) and the red light (R) can be shared by the medium device, so the weight of its driving value is shared with the pixel device The width of the sub-pixels 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 = 1/0 · 5χ: 1 / χ · 1 /; ι · 5χ = 6 : 3: 2 = 2: 1: 2/3 Odd number row: That is Rl '= [(R1 + R2) / 2] X 2 G1 = G 1 X 1

Br = ((B1 + Β2) / 2] X 2/3 G2 ’=: G2 X 1

The even-numbered row pixel device takes red light (R) to extend the width to 3 times the width 3 ×, and the sub-pixel widths of blue light (β) and green light (G) are maintained at the original width X, then the blue light (B) and The sub-pixels of red light (r) can be shared by adjacent pixel devices, so the driving value I weight is the same as the image

Page 11 200421244 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 by the pixel device; therefore, the weight ratio of R: G: β = 1/1 · 5χ · 1 / χ · 1 / 〇 5χ = 2/3: 1: 2 6 Even rows: ΒΓ G1, R1, G2, ^ [(B1 + B2) / 2] X 2 X 1 ^ [(R1 + R2) / 2] X 2/3 12x1 balance (wl if the pixel device of the present invention cannot reach the hand hite balance when the driver is illuminated), its ratio can be adjusted by means of a look-up table (L0, LUT) . P Tabl < * Divided by-,, ^ The above are only the preferred embodiments of the present invention, and the scope of the present invention is implemented, that is, where the application is in accordance with the present invention ;; equal changes and modifications within the scope ' All should still belong to the patent concept of the present invention ^ 200421244 Brief Description of the Drawings [Simplified Description of the Drawings] Figure 1 is a structural schematic diagram of a 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 video implementations. Figures 4-1 and 4-2 are schematic diagrams of the first embodiment of the present invention. Figures 5-1 and 5-2 are schematic views of the second embodiment of the present invention. 6_1 and 6-2 are schematic diagrams of a third embodiment of the present invention. [Explanation of Symbols in Drawings] Pixel Device ... 11

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

Green first ......... G

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

Page 13

Claims (1)

200421244 6. Scope of patent application [Scope of patent application] The pixel driver module of the ochre color element is controlled by controlling a plurality of color light (G) and the sub-pixels, which are respectively selected from the device that emits red light (R) and green pixels. The sub-pixels of the three color elements are used to make the display look like :: the arrangement of light and dark and gray-scale contrast pixels 彳 Πί increase the width or reduce the width, and at the same time the pixel device with the number of sub-pixels can be shared The sub-pixels, ie, the sub-images are reduced, and the driving values of the driving sub-pixels are the driving values of the original adjacent sub-pixels of the same color and then multiplied by the weight. / 2. The pixel driving module for a display as described in item 丨 of the patent application range, wherein the weight is inversely proportional to the width of the unshared sub-pixels in the pixel device; and 'half the width of the sub-pixels shared in the pixel device Ratio 3, as in the second patent application, the pixel driver module of the display, in which, if the pixel can not reach the white balance when the driver is funded, you can use the Look Up Table (LljT) Way to adjust its ratio.