CN2504659Y - Pixel driver module for LCD - Google Patents

Abstract

The utility model discloses a pixel driving module of a liquid crystal display, a display panel of which is formed by a plurality of sub-pixels of three primary colors of red, blue and green respectively in a mosaic type, a tortoise shell type or a chessboard type even staggered arrangement. The pixel driving module uses a signal scanning line to connect each sub-pixel in horizontal arrangement in parallel, each data transmission line is in a zigzag direction, and the sub-pixels in every two adjacent horizontal rows are connected together in longitudinal sequence. The utility model has the advantages of reduce sub-pixel's interval, make display pixel's area and aperture opening ratio increase to improve the resolution of display and reduce the drive module impedance.

Description

Pixel driver module for LCD

The utility model relates to a liquid crystal display, in particular to a pixel driving module of a liquid crystal display.

The display is an indispensable device in today's information society. It is mainly used in the output device for displaying pictures and text signals. The image output by the display is composed of many pixels (Pixels) with different colors and brightness. Each A pixel includes a plurality of sub-pixels (sub-Pixels). When the shortest distance between two adjacent sub-pixels, the so-called pitch, is smaller, the picture of the display will be clearer.

In a general display, each pixel is composed of three sub-pixels of the three primary colors of red, green, and blue, and each sub-pixel is respectively connected by a signal scanning line (common) and a data transmission line (Segment). Drive to control the brightness and darkness of the sub-pixel, and then display the color of the full-color mode through the reconciliation of different proportions of the three primary colors. In a commonly used liquid crystal display, when a plurality of sub-pixels 12 of red (R), blue (B), and green (G) are arranged in a mosaic pattern, the pixel driving module 10 is shown in FIG. The lines 14 are vertically arranged in parallel, and each data transmission line 14 must pass through the interval 18 between two adjacent sub-pixels 12 in the horizontal arrangement to connect the vertically spaced sub-pixels 12; each horizontally arranged sub-pixel 12 passes through a The parallel signal scanning lines 16 are connected together. The data transmission lines 14 and the signal scanning lines 16 are connected to the driving elements arranged at the edge of the display, so that the driving elements control the driving signals to quickly and repeatedly scan each sub-pixel 12 to form a frame. However, the design of this data transmission line 14 makes it necessary to reserve a certain space between adjacent sub-pixels 12 for the passage of the data transmission line 14 when arranging the sub-pixels 12 on the panel of the display. The pitch 18 of the sub-pixels 12 cannot be reduced, which not only prevents the image of the display screen from achieving better clarity, but also limits the area of the display pixels and reduces the aperture ratio, thereby greatly reducing the resolution of the display. In addition, the layout design of the data transmission lines 14 will not only cause the driving module to generate high impedance and easily cause signal distortion, but also produce serious jagged lines when displaying oblique lines, resulting in poor display effects.

The main purpose of the present invention is to provide a pixel drive module that can increase the definition of display images and increase the area and aperture ratio of display pixels to improve the resolution of the display in order to overcome the above-mentioned defects and deficiencies.

The second object of the present invention is to provide a pixel driving module that can reduce impedance and improve signal distortion.

The third purpose of the present invention is to provide a pixel driving module, which can improve the jaggedness problem generated when displaying oblique lines.

In order to achieve the above object, the utility model adopts the following technical scheme: the pixel drive module of the liquid crystal display includes pixels, data transmission lines, and signal scanning lines, and the pixels include sub-pixels of three different colors. The sub-pixels are evenly arranged; among the sub-pixels in every two adjacent rows, each sub-pixel in one row is between every two sub-pixels in another adjacent row; each sub-pixel is simultaneously affected by a Driving the above-mentioned horizontal signal scanning lines and one vertical above-mentioned data transmission line; each of the data transmission lines is a uniform zigzag direction, which sequentially connects the sub-pixels in every two adjacent horizontal rows connected together.

Among the sub-pixels in every two adjacent vertical rows, each sub-pixel in one vertical row is between every two sub-pixels in another adjacent vertical row; each signal scanning line is a uniform sawtooth direction, which sequentially connects the sub-pixels in every two adjacent vertical rows.

The signal scanning lines and the data transmission lines are modules composed of a transparent conductive film of indium tin oxide.

The three different colors are red, blue and green, respectively.

The arrangement of the sub-pixels is one of mosaic, tortoise shell and checkerboard.

After adopting the above technical solution, since the data transmission lines are sequentially connected to two adjacent rows of sub-pixels, there is no need to reserve a space between the two sub-pixels for the data transmission lines to pass through, so that the distance between the sub-pixels can be adjusted. Minimized, excellent picture clarity can be obtained, and the area of the display pixel can be increased and the aperture ratio can be increased to improve the resolution of the display. In addition, the layout of the data transmission wiring of the utility model has the advantage of reducing impedance, which can Avoid situations where signal distortion occurs.

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

FIG. 1 is a schematic diagram of a commonly used pixel driving module;

Fig. 2 is the schematic diagram of the pixel driving module of the liquid crystal display of the present invention;

Fig. 3 is the schematic diagram of the second embodiment of the pixel driving module of the liquid crystal display of the present invention;

FIG. 4 is a schematic diagram of a third embodiment of the pixel driving module of the liquid crystal display of the present invention.

As shown in FIG. 2 , the panel of the liquid crystal display is formed by several sub-pixels 22 respectively of red (R), green (G) and blue (B) in a mosaic uniformly interlaced arrangement. Among the sub-pixels 22 in one row, each sub-pixel 22 in one row is located between every two sub-pixels 22 in another adjacent row, and the brightness and darkness of each sub-pixel 22 are respectively transmitted by the pixel driving module 20. The driving of the wiring 24 and the signal scanning wiring 26, wherein the signal scanning wiring 26 is arranged in parallel, and it respectively connects each horizontally arranged sub-pixel 22; The sub-pixels 22 in every two adjacent horizontal rows are connected together.

Wherein, the above-mentioned data transmission lines 24 and signal scanning lines 26 are modules composed of upper and lower layers of indium tin oxide (Indio Tin oxide, ITO), which are evenly arranged on the transparent electrode plates inside the liquid crystal display. superior. When a voltage signal is applied to the liquid crystal display, the sub-pixel 22 will be controlled by the signal scanning line 26 and the data transmission line 24, and will be bright or dark through the arrangement of the liquid crystal, and the sub-pixel 22 will be controlled according to the magnitude of the voltage signal. Contrast of light and shade and gray scale of color, so that a series of different colors can be obtained through the combination and change of sub-pixel 22 colors.

In the above-mentioned sub-pixels 22 arranged in a mosaic pattern, since the data transmission lines 24 are sequentially connected to two adjacent rows of sub-pixels 22, there is no need to reserve a space between the two sub-pixels 22 for the data transmission lines 24 to pass through. Space, so that the distance 28 between the sub-pixels 22 can be reduced to a minimum, excellent picture clarity can be obtained, and the area of the display pixel can be increased and the aperture ratio can be increased to improve the resolution of the display. In addition, the utility model The layout of the data transmission lines 24 has the advantage of reducing impedance, which can avoid signal distortion.

The second embodiment of the present invention is shown in Figure 3, the sub-pixels 22 are evenly arranged in a tortoise-shell pattern, and the data transmission lines 24 are longitudinally connected to two adjacent sub-pixels 22 sequentially. In addition to increasing the area of display pixels and reducing impedance by reducing the pitch 28 to the minimum, it can also improve the problem of jagged distortion when displaying oblique lines, and improve the fineness of lines and the accuracy of image display, so as to meet consumer demand. The requirements for the aesthetics and clarity of the lines are used to display text and patterns. In addition, the connection method of the data transmission wires 24 of the present invention can also be applied in the orderly arrangement design of the sub-pixels 22 in a checkerboard pattern, and each vertically arranged sub-pixel 22 is connected sequentially, as shown in FIG. 4 . In addition to the above-mentioned advantages of small pitch 28 and low impedance, this layout design can also improve the situation that font strokes tend to be skewed when the display displays characters, making the display of characters more beautiful and neat.

Therefore, when the liquid crystal display of the present invention is applied to electronic products such as digital cameras and video cameras with screens for displaying images and pictures, the layout of the data transmission lines will enable the images to be displayed clearly and without distortion.

For the above arrangement of sub-pixels 22, in every two adjacent vertical rows of sub-pixels 22, each sub-pixel 22 of one vertical row can be located between every two sub-pixels 22 of another adjacent vertical row , so that each signal scanning line 26 also uniformly forms a zigzag direction, and sequentially connects the sub-pixels 22 in every two adjacent vertical rows.

The above are only the best specific embodiments of the present utility model, and are not limited thereto in reality, and all variations with the same or equivalent principles are within the scope of protection of this patent.

Claims (5)

1, a kind of pixel drive module of LCD comprises pixel, data transmission cabling, and signal scanning cabling, it is characterized in that: this pixel comprises the sub-pixel of three kinds of different colors, the sub-pixel of this different color is evenly distributed; In this sub-pixel of every adjacent two horizontally-arrangeds, wherein each sub-pixel of a horizontally-arranged is between per two sub-pixels of another adjacent rows; This each sub-pixel is subjected to the driving of a horizontal above-mentioned signal scanning cabling and an above-mentioned longitudinally data transmission cabling simultaneously; Described each data transmission cabling is uniform zigzag trend, and it links together the described sub-pixel in every adjacent two horizontally-arrangeds in regular turn.

2, the pixel drive module of LCD according to claim 1 is characterized in that: in every adjacent two vertical rows' described sub-pixel, wherein each sub-pixel of a vertical row is between per two sub-pixels of another adjacent vertical row; Described each signal scanning cabling is uniform zigzag trend, and it links together the described sub-pixel among the every adjacent two vertical rows in regular turn.

3, the pixel drive module of LCD according to claim 1 is characterized in that: described signal scanning cabling and data transmission cabling are for being pluged with molten metal the module that transparent conductive film constituted of tin by a kind of oxidation.

4, the pixel drive module of LCD according to claim 1 is characterized in that: described three kinds of different colors are respectively red, blue and green.

5, the pixel drive module of LCD according to claim 1 is characterized in that: the arrangement mode of described sub-pixel is a kind of in mosaic, tortoise plastron formula and the checkerboard type.

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