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Photographic and video image system

A technology for liquid crystal display devices and opposing substrates, which is applied to transistors, optics, instruments, etc., and can solve the problems of reduced productivity, complex manufacturing process of TFT substrate 102, and reduced clarity.

Inactive Publication Date: 2004-03-31
SHARP KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the manufacturing process of the TFT substrate 102 becomes complicated and the productivity is reduced.
In addition, there are problems such as lowering of sharpness and occurrence of development residue during patterning.
[0022] On the other hand, in a liquid crystal display device having an alignment-regulating structural member, the numerical aperture is reduced due to the linear protrusions 141 formed in the pixel region, so there is a problem that the display brightness of the liquid crystal display device decreases.
In order to maintain the brightness of the display, it is necessary to increase the brightness of the backlight, which causes the problem of increasing the power consumption of the liquid crystal display device.

Method used

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  • Photographic and video image system
  • Photographic and video image system
  • Photographic and video image system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0052] use Figure 1 to Figure 7 The substrate for a liquid crystal display device of the first embodiment of the present invention and a liquid crystal display device having the substrate will be described. figure 1 The schematic structure of the liquid crystal display device of this embodiment is shown. Such as figure 1 As shown, the structure of the liquid crystal display device is: a TFT substrate 2 formed with pixel electrodes, TFTs, etc., and a counter substrate 4 formed with common electrodes, etc., are opposed to each other, and liquid crystals are enclosed between them. . An alignment film for aligning liquid crystal molecules in a predetermined direction is formed on the facing surfaces of the two substrates 2 and 4.

[0053] The TFT substrate 2 is provided with a gate bus line driving circuit 80 on which a driver IC for driving a plurality of gate bus lines is mounted, and a drain bus line driving circuit 82 on which a driver IC for driving a plurality of drain bus li...

no. 2 Embodiment approach

[0064] Below, use Figure 8 to Figure 10 The substrate for a liquid crystal display device according to the second embodiment of the present invention will be described. Figure 8 The structure of the TFT substrate of this embodiment is shown. Such as Figure 8 As shown, the TFT substrate 2 has a plurality of protrusions 40 serving as a structural member for orientation restriction. For example, one of the substrates of a normally black mode liquid crystal display device is constructed in an MVA mode. The protrusion 40 is formed of, for example, a resist, and is approximately circular when viewed in a direction perpendicular to the surface of the substrate. The protrusion 40 is arranged at the intersection of the gate bus line 12 and the drain bus line 14 and the intersection of the storage capacitor bus line 18 and the drain bus line 14, for example.

[0065] In the present embodiment, protrusions 40 are formed at the intersection of the gate bus line 12 and the drain bus line 14...

no. 3 Embodiment approach

[0069] Below, use Figure 11 to Figure 18 B illustrates the substrate for a liquid crystal display device of the third embodiment of the present invention. Picture 11 Shows the structure of the TFT substrate of this embodiment, Picture 12 Means edge Picture 11 The cross-sectional structure of the TFT substrate after cutting the D-D line. Such as Picture 11 with Picture 12 As shown, the TFT substrate 2 has a transparent electrode 15 made of a light-transmitting electrode material and a reflective electrode 17 made of a light-reflective electrode material in one pixel, which constitutes one of the substrates of the semi-transmissive liquid crystal display device. The transparent electrode 15 and the reflective electrode 17 in one pixel are electrically connected to each other. The transparent electrode 15 transmits the light incident from the backlight unit 88 provided on the back side of the TFT substrate 2 to the surface side, and the reflective electrode 17 is used to reflec...

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Abstract

The invention relates to a liquid crystal display used in a display section of an electronic apparatus and a liquid crystal display substrate used for the same and provides a liquid crystal display that can be manufactured through simplified manufacturing processes and that can provide high display quality and a liquid crystal display substrate used for the same. A configuration is employed which includes gate bus lines and drain bus lines formed on a substrate such that they intersect each other with an insulation film interposed therebetween and pixel electrodes provided so as to cover at least one of the gate bus lines and the drain bus lines with a dielectric layer interposed therebetween and forming parasitic capacities between the gate bus lines or drain bus lines and themselves.

Description

Technical field [0001] The present invention relates to a liquid crystal display device used in a display unit of an electronic device and the like and a substrate for a liquid crystal display device used therein. Background technique [0002] Active matrix type liquid crystal display devices generally have: a TFT substrate in which a thin film transistor (TFT: Thin Film Transistor) used as a switching element is formed in each pixel; and a color filter (CF: Color Filter) formed thereon. Opposite substrate. [0003] The TFT substrate has a gate bus line and a drain bus line crossing each other through an insulating film. A TFT is formed near the intersection of the two buses. Pixel electrodes are respectively formed in a plurality of pixel regions arranged in a matrix. [0004] The TFT substrate uses a stepper, for example, to form a pattern by a block exposure method. The block exposure method is: for example, the display area forming the repeating pattern of the TFT array is di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1368G02F1/1333G02F1/1335G02F1/1345G02F1/136G02F1/1362H01L29/786
CPCG02F1/133555G02F1/136227G02F2001/13606G02F1/13606G02F1/136
Inventor 高木孝星野淳之泽崎学佐口琢哉
Owner SHARP KK