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Planar display with data line capable of being repaired and its repair method

A flat-panel display, data line technology, applied in the field of repairing data lines and gate lines, can solve the problems of image signal deterioration, image signal distortion deterioration, limited number of broken lines, etc.

Inactive Publication Date: 2006-07-12
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the image signal passes through the intersection point of the auxiliary line 24A and other data lines 16, the image signal will be distorted and deteriorated, especially when the number of data lines 16 is large, the number of intersection points on the auxiliary line 24A will also increase, so the image The signal degradation will be more serious
Moreover, it can be known from the above that one auxiliary line 24A is required to repair one data line 16A. Therefore, as the number and length of the auxiliary lines 24 increase and the width design of the gate lines 12 and the data lines 16 becomes narrower, the number of auxiliary lines 24 increases. The resulting resistance and capacitance will also increase, which will increase the signal hysteresis and affect the display quality of the LCD
In addition, the number of production auxiliary lines 24 will be limited by space and area, so the number of broken lines that can be repaired is quite limited

Method used

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  • Planar display with data line capable of being repaired and its repair method
  • Planar display with data line capable of being repaired and its repair method
  • Planar display with data line capable of being repaired and its repair method

Examples

Experimental program
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Effect test

no. 1 example

[0057] see image 3 and Figure 4A to Figure 4B ,in image 3 is a top view showing the repair structure of the present invention, Figure 4A to Figure 4B display edge image 3 The sectional schematic diagram of the tangent line IV-IV for repairing, where Figure 4A For the schematic diagram before patching, Figure 4B A schematic diagram after repair.

[0058] like image 3 and Figure 4A As shown, the manufacturing process generally carried out on the substrate 30 is to form the first layer of metal layer on the substrate 30 first, and define its pattern, so as to form the gate line 40, the gate 341 of the TFT structure 34, and can be used for Light-shielding metal wire 32 for repair. The position of the light-shielding metal line 32 is set between the data line 50 and the pixel electrode 36 under the consideration of not affecting the electrical performance, and is used to shield the light from the edge of the pixel electrode 36 near the data line 50, and is in a flo...

no. 2 example

[0063] see Figure 5 and Figure 6A to Figure 6B ,in Figure 5 It is a top view showing the repair structure of the present invention, Figure 6A to Figure 6B display edge Figure 5 The sectional schematic diagram of repairing the tangent VI-VI, where Figure 6A For the schematic diagram before patching, Figure 6B A schematic diagram after repair.

[0064] In this embodiment, the manufacturing process of the array substrate 30 is substantially the same as that of the first embodiment, except that the position of the repairing spare wire 38 is different. Here, the repairing spare wire 38 and the light-shielding metal wire 32 are prepared at the same time as the gate 341 and the gate line 40 , and both are from the first metal layer; the data line 50 is from the second metal layer. In this embodiment, the repairing spare wire 38 is a protruding part of the light-shielding metal wire 32 , therefore, the repairing spare wire is also called a bump 38 here.

[0065] Similarl...

no. 3 example

[0068] see Figure 7 and Figure 8A to Figure 8B ,in Figure 7 is a top view showing the repair structure of the present invention, Figure 8A to Figure 8B display edge Figure 7 The cross-sectional schematic diagram of repairing the tangent VIII-VIII, in which Figure 8A For the schematic diagram before patching, Figure 8B A schematic diagram after repair.

[0069] In this embodiment, the manufacturing process of the array substrate 30 is substantially the same as that of the first embodiment, except for the positions of the repairing spare wires 38 and the light-shielding metal wires 32 . Here, the repairing spare wire 38 is prepared at the same time as the gate 341 and the gate line 40 , and both come from the first metal layer; the light-shielding metal line 32 is prepared at the same time as the data line 50 , and both come from the second metal layer. Before any repairing action is performed, the repairing backup wire 38 and the light-shielding metal wire 32 are b...

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Abstract

The planar display with data line capable of being repaired may have its data line fault repaired with the shading line beside the data line and spare repairing metal line connected between the data line and the shading line. When some data line has several broken points, it may be repaired with the near shading line and / or repairing line by means of laser fusion. Similarly, the planar display may have its grid line repaired.

Description

technical field [0001] The invention relates to a method for repairing line defects, in particular to a method for repairing data lines (data lines) and gate lines (gate lines) of a flat panel display (FPD). Background technique [0002] Liquid crystal display (LCD) is the most widely used flat-panel display at present. It has the characteristics of low power consumption, thin and light weight, and low voltage drive. Its display principle is to use the material properties of liquid crystal molecules to Finally, the alignment state of the liquid crystal molecules is changed, causing various photoelectric effects in the liquid crystal material. Generally speaking, the display area of ​​an LCD includes a plurality of pixel areas, and each pixel area is defined by two gate lines (also known as scan lines) and two data lines (data lines). A thin film transistor (thin film transistor, hereinafter referred to as TFT) and a pixel electrode are arranged in the rectangular area, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G02F1/1343
Inventor 李如龙林益祥
Owner AU OPTRONICS CORP
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