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Liquid crystal display (LCD) panel and method for forming same

A technology of liquid crystal display panels and thin film transistors, applied in the directions of optics, instruments, electrical components, etc., can solve the problem of lower pixel aperture ratio, and achieve the effect of increasing the pixel aperture ratio and shortening the distance

Active Publication Date: 2014-01-22
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, although the liquid crystal display panel using the tri-gate pixel structure has the advantages of low cost and low power consumption, the problem of lower pixel aperture ratio still needs to be further improved.

Method used

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  • Liquid crystal display (LCD) panel and method for forming same
  • Liquid crystal display (LCD) panel and method for forming same
  • Liquid crystal display (LCD) panel and method for forming same

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Embodiment Construction

[0039]Certain terms are used in the description and claims to refer to particular components. Those of ordinary skill in the art will appreciate that manufacturers may refer to the same component by different terms. The specification and claims do not use the difference in name as the way to distinguish components, but use the difference in function of the components as the basis for the difference. "Includes" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the word "electrically connected" here includes any direct and indirect electrical connection means. Therefore, if it is described that a first device is electrically connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices or connection means.

[0040] The following descriptions of the various embodiments refer...

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Abstract

A liquid crystal display panel (30) and a method for forming same. The liquid crystal display panel (30) comprises multiple pixels (20), multiple rows of scanning lines (G1, G2 ..., G3m) and multiple columns of data lines (D1, D2 ..., Dn). The multiple rows of scanning lines are made of a first metal layer. Each pixel comprises multiple sub-pixels (20R, 20G, 20B). Each sub-pixel comprises pixel electrodes (22A, 22B, 22C), thin film transistors (T1, T2, T3) and a common electrode wire (C1, 48). The common electrode wire (C1, 48) comprises a main branch area (480), a first shielded metal area (481), and a second shielded metal area (482). The first shielded metal area (481) and the second shielded metal area (482) are parallel to the multiple rows of scanning lines (40) and are connected to the main branch area (480). Both the multiple columns of data lines (42) and the common electrode wire (48) are formed of a second metal layer. The scanning line (40) and the common electrode wire (48) are formed by different metal layers through different etching processes, so not only the distance between the scanning line (40) and the common electrode wire (48) can be shortened, but also the width of a part of the common electrode wire (48) used as the shielded metal area is properly reduced, thereby improving the pixel aperture ratio.

Description

technical field [0001] The invention relates to a liquid crystal display panel, in particular to a liquid crystal display panel with a high aperture ratio tri-gate pixel structure. Background technique [0002] Today's consumer electronic products generally use thin and light flat panel displays, among which liquid crystal displays have been widely used in various electronic devices such as televisions, mobile phones, personal digital assistants, digital cameras, computer screens or notebook computers. [0003] The driving mode of the pixel structure of a thin film transistor (Thin Film Transistor, TFT) liquid crystal display can be mainly divided into two types: a single-gate pixel structure and a tri-gate pixel structure. At a resolution of n×m, the number of scan lines and source lines of a liquid crystal display with a three-gate pixel structure is 3m and n, respectively, while the number of scan lines and source lines of a liquid crystal display with a single-gate pixel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362G02F1/1368G02F1/1345G02F1/1333H01L21/77
CPCH01L21/77G02F1/136213G02F1/1333G02F1/1362H01L27/12G02F2001/136218H01L27/124G02F1/1368G02F2201/121G02F1/136218
Inventor 施明宏何海英
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD