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Active matrix substrate and method for manufacturing same

An active matrix and manufacturing method technology, which is applied in semiconductor/solid-state device manufacturing, instruments, semiconductor devices, etc., and can solve problems such as poor stripe display and poor orientation

Inactive Publication Date: 2019-12-20
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the rubbing process is performed on an active matrix substrate with a difference in height and height, poor alignment may occur and display defects called streaks may occur

Method used

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  • Active matrix substrate and method for manufacturing same
  • Active matrix substrate and method for manufacturing same
  • Active matrix substrate and method for manufacturing same

Examples

Experimental program
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Effect test

Embodiment Construction

[0075] figure 1 It is a block diagram showing the configuration of a liquid crystal display device including the active matrix substrate of the embodiment. figure 1 The illustrated liquid crystal display device 1 includes a liquid crystal panel 2 , a display control circuit 3 , a gate line drive circuit 4 , a data line drive circuit 5 , and a backlight 6 . Hereinafter, m and n are integers of 2 or more, i is an integer of 1 or more and m or less, and j is an integer of 1 or more and n or less.

[0076] The liquid crystal panel 2 is an FFS mode liquid crystal panel. The liquid crystal panel 2 has a structure in which an active matrix substrate 10 and an opposing substrate 40 are bonded together, and a liquid crystal layer is provided between the two substrates. A black matrix (not shown) and the like are formed on the counter substrate 40 . On the active matrix substrate 10 , m gate lines G1 to Gm, n data lines S1 to Sn, (m×n) pixel circuits 20 , common electrodes 30 (dotted...

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Abstract

The invention relates to an active matrix substrate and method for manufacturing the same. An active matrix substrate of a liquid crystal panel of an FFS mode includes gate lines, data lines, pixel circuits each including a switching element and a pixel electrode, a protective insulating film formed in a layer over these elements, and a common electrode formed in a layer over the protective insulating film. The data line includes a lower layer conductor part formed using indium tin oxide together with the pixel electrode, and an upper layer conductor part formed using molybdenum niobium and analuminum alloy. The lower layer conductor part is formed in a disconnected shape at a position of the switching element, and the upper layer conductor part is formed in a continuous shape so as to overlap with the lower layer conductor part. With this, an active matrix substrate capable of preventing a disconnection failure of the data line and an alignment failure is provided.

Description

technical field [0001] The invention relates to a display device, in particular to an active matrix substrate with a common electrode and a manufacturing method thereof. Background technique [0002] Liquid crystal display devices are widely used as thin, lightweight, and low-power display devices. A liquid crystal panel included in a liquid crystal display device has a structure in which an active matrix substrate and a counter substrate are bonded together, and a liquid crystal layer is provided between the two substrates. A plurality of gate lines, a plurality of data lines, and a plurality of pixel circuits including thin film transistors (Thin Film Transistor: hereinafter referred to as TFT) and pixel electrodes are formed on the active matrix substrate. [0003] As a method of applying an electric field to a liquid crystal layer of a liquid crystal panel, a vertical electric field method and a horizontal electric field method are known. In the liquid crystal panel of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362
CPCG02F1/136286G02F1/133707G02F1/1368G02F1/136295H01L21/32134H01L27/124H01L27/1259H01L27/1288H01L29/458G02F1/134363G02F1/13439G02F2202/103G02F1/134318G02F1/13625H01L21/0217H01L21/02532H01L21/02592H01L21/0262H01L21/0274H01L21/28568H01L21/30604H01L27/1248H01L29/518H01L29/66765H01L29/78669
Inventor 木本英伸
Owner SHARP KK