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Array substrate and liquid crystal display panel

A technology for array substrates and insulating substrates, which is applied in the field of liquid crystal display panels, and can solve problems such as lengthening of the dominant line 78 and poor disconnection, and achieve the effects of suppressing the reduction of yield, reducing the size, and suppressing poor disconnection

Active Publication Date: 2014-07-09
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0042] However, the configuration of the gate drive circuit 60 described in Patent Document 1 has a problem in that the gate drive circuit wiring 46 that supplies signals to each segment ST is arranged between the gate drive circuit 60 and the substrate edge 26 . That is, the branch line 78 arranged outside the gate drive circuit 60 and connecting the gate drive circuit wiring 46 and each TFT element in the gate drive circuit 60 becomes long, and a disconnection defect or the like is likely to occur.

Method used

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  • Array substrate and liquid crystal display panel
  • Array substrate and liquid crystal display panel
  • Array substrate and liquid crystal display panel

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Embodiment approach 1

[0078] As shown below, according to Figure 1 to Figure 5 One embodiment of the present invention will be described.

[0079] The TFT array substrate 20 of this embodiment has the same Figure 12 The described TFT array substrate 20 has substantially the same schematic configuration.

[0080] figure 1 It is a plan view showing a schematic configuration of main parts of the TFT array substrate 20 of the present embodiment.

[0081] Such as figure 1 As shown, in the peripheral region 24 of the TFT array substrate 20 as an array substrate, gate drive circuits 60 (60a, 60b) and gate drive circuit wiring 46 connected to an FPC (not shown) are provided. In addition, in the gate drive circuit 60 as a drive circuit, a TFT element as a drive element is formed.

[0082] In the TFT array substrate 20 of the present embodiment, the gate drive circuit 60 is divided into two drive circuits in the X direction of the TFT array substrate 20 . Specifically, in the above X direction, the ...

Embodiment approach 2

[0171] according to Figure 6 Another embodiment of the TFT array substrate 20 of the present invention will be described.

[0172] In addition, for the convenience of description, members having the same functions as those in the drawings described in Embodiment 1 are denoted by the same reference numerals, and their descriptions are omitted.

[0173] The TFT array substrate 20 of the present embodiment differs from the TFT array substrate 20 of the first embodiment in the form of the gate drive circuit wiring 46 . That is, two clock wirings are added. And, accompanying this, the method of extending the branch wire 79 is different. Described below.

[0174] Such as Figure 6 As shown, in the peripheral region 24 of the TFT array substrate 20, a gate drive circuit 60 and a gate drive circuit wiring 46 connected to an FPC (not shown) are provided.

[0175] As the wiring 46 for the gate drive circuit, along the Y direction of the TFT array substrate 20, there are provided: ...

Embodiment approach 3

[0206] As shown below, according to Figure 8 ~ Figure 10 Another embodiment of the TFT array substrate 20 of the present invention will be described.

[0207] In addition, for convenience of description, members having the same functions as those in the drawings described in the above-mentioned embodiments are assigned the same reference numerals, and descriptions thereof are omitted.

[0208] The TFT array substrate 20 of the present embodiment differs from the TFT array substrate 20 of the first embodiment in the form of the connection portion 80 (switching portion 120 ).

[0209] Figure 8 (a) is a plan view showing an example of a schematic configuration of the connecting portion 80 of the present embodiment, Figure 8 (b) is Figure 8 The Y-Y line sectional view of (a).

[0210] Such as Figure 8 As shown, the connecting portion 80 connects the branch line 78 and the wiring 46 for each gate driving circuit.

[0211] The branch line 78 is formed of the first metal m...

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Abstract

A gate drive circuit (60) divided into a plurality of sections (ST) is provided, and TFT elements (T1) to (T4) are provided in each section (ST), and a connection clock wiring (72) is provided. When focusing on one branch line (78A), (74) and the branch line (78) of the above-mentioned TFT element, branch lines (79A) and (79B) are extended from the branch line (78A). (78A) is connected with the TFT elements (T1), (T3), the TFT elements (T1), (T3) are arranged in the section (ST(j-1)), and the section (ST(j)) and the section (ST (j-1) is different, the TFT elements (T2), (T4) are arranged in the section (ST(j)), and the branch lines (79A), (79B) connect the TFT elements (T2), (T4) and the branch line (78A) electrical connections.

Description

technical field [0001] The present invention relates to an array substrate provided with TFT elements and the like on an insulating substrate and a liquid crystal display panel using the array substrate. Background technique [0002] Active-matrix display devices that use thin-film transistors (Thin Film Transistor, hereinafter referred to as "TFT") as switching elements of pixels have a fast response speed and are easy to perform multi-gray-scale display. It is widely used in portable game machines, car navigation devices, and the like. [0003] In an active matrix display device, a TFT array substrate and a counter substrate are generally arranged facing each other, and display elements (liquid crystal, organic EL, etc.) are sealed between these substrates with a sealing material. [0004] (TFT array substrate) [0005] Below, according to Figure 12 A schematic configuration of a TFT array substrate will be described. [0006] Figure 12 It is a plan view showing a sch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F9/00G02F1/1368G09F9/30
CPCG02F1/13458H01L27/124G02F1/13454G02F1/136263G02F1/1345G02F1/1368
Inventor 吉田昌弘小笠原功堀内智山田崇晴田中信也菊池哲郎
Owner SHARP KK