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Active element array substrate manufacturing method and construction thereof

A technology for array substrates and active components, which is applied in the field of manufacturing methods and structures of active component array substrates, and can solve problems such as poor performance

Inactive Publication Date: 2009-05-06
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current solution to the problem of light leakage in LCD TVs is to use high-density brushes and slow-speed alignment, but the effect is not good
Another method proposed by the Japanese company Hitachi uses a thick organic insulating film or a photosensitive pressure film to replace the protective layer to flatten the thin film transistor array substrate, but the actual result still cannot completely avoid the height difference and inclination angle of the pixel electrode layer Liquid crystal light leakage caused by abnormal alignment

Method used

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  • Active element array substrate manufacturing method and construction thereof
  • Active element array substrate manufacturing method and construction thereof
  • Active element array substrate manufacturing method and construction thereof

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Embodiment Construction

[0042] image 3 Shown is a schematic cross-sectional view of a pixel structure of an active device array substrate applicable to an IPS according to an embodiment of the present invention. In this embodiment, a plurality of pixels with wide viewing angle technology - lateral electric field switching (IPS) are arranged on the substrate of a liquid crystal display, and the substrate is a glass substrate, and there are several gate wirings and several source wirings. The lines intersect and are disposed on the glass substrate. A gate insulating layer (gate insulator, GI) 32 on a glass substrate (not shown in the figure) in each pixel can protect the gate wiring to form an electrical barrier, and there is a passivation insulator on the gate insulating layer 32 ) 34, the protective layer 34 is provided with a groove 39, the pixel electrode layer 38 is arranged in the groove 39 and forms a flat surface with the protective layer 34, and can be coated with a uniform alignment film 36...

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Abstract

The invention relates to a manufacturing method of an array base plate for an active element and a structure thereof. A multi-transmissibility shape mask is utilized to design patterns with different light transmission rate; a pixel electrode is arranged in a protective layer, so that a contact surface where the protective layer and a matching mask are matched in a frictional manner is smooth, thereby the structure can restrain the abnormal light leakage phenomenon caused by bad matching of the matching mask.

Description

technical field [0001] The invention relates to a manufacturing method and structure of an active element array substrate applied in a liquid crystal display device, in particular to a manufacturing method and a structure of an active element array substrate capable of uniformly coating an alignment film. Background technique [0002] After the general wide viewing angle technology-In-Plane-Switching (IPS) pixel electrode film is etched, the edge will form an inclination angle such as figure 1 The pixel electrode layer 10 shown will perform rubbing alignment along the direction of the source line (Source Line) after the alignment film is coated. Even and brush rubbing alignment poor contact, resulting in liquid crystal light leakage phenomenon of abnormal alignment. [0003] refer to Figure 2a It is used to explain the reasons for the uneven coating of the alignment film. The pixel electrode layer 28 protrudes from the upper surface of the protective film 24. When the ali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/84H01L27/12G02F1/1362
Inventor 刘梦骐任坚志
Owner CHUNGHWA PICTURE TUBES LTD