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Active matrix board and producing method thereof

An active matrix, one-sided technology, applied in the field of active matrix, can solve the problems of expensive active matrix production line, waste of materials, environmental pollution, etc., and achieve the effect of reducing equipment requirements, avoiding environmental pollution, and stable performance

Inactive Publication Date: 2006-04-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that most of the materials deposited on the glass substrate, such as metals, amorphous silicon or polysilicon films, and oxides, have been cleaned in the photolithography process, which not only causes environmental pollution, but also wastes materials.
Moreover, the photolithography process must be implemented on the entire large substrate (usually with a diagonal of more than 1 meter), so that the accuracy of photolithography and overlay is about 1 micron. The requirements for equipment are very high, so the active matrix production line is very expensive

Method used

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  • Active matrix board and producing method thereof
  • Active matrix board and producing method thereof
  • Active matrix board and producing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] attached Figure 7 , 8, 9 represent examples of two-terminal devices composed of commonly used devices, in which Figure 7 It is a two-terminal device composed of two back-to-back diodes, and Figure 8 is a two-terminal device composed of multiple diodes. Figure 9 It is a two-terminal device composed of two transistors. It is also possible to use other components and chips to form a two-terminal device according to a more complex circuit or to manufacture a two-terminal chip on a single chip according to known technology, but as long as the circuit with only two electrode leads is regarded as a two-terminal device according to The inventive structure produces an active matrix.

Embodiment 2

[0037] Accompanying drawing 10, 11 is the example schematic diagram that adopts chip to realize the structure of accompanying drawing 3, 4.

[0038] As shown in Figures 10 and 11, the wires 5 are prefabricated on the glass plate 7 according to the requirements of the display matrix. Several two-terminal chips 2 are arranged in a matrix on the wires 5 on the glass plate 7 according to the positions of display pixels, and the electrodes 3b on the top of the two-terminal chips 2 are electrically connected to the wires 5 . Metal is preferably used for the wire 5 . Because the lead-out electrode 3b is very thin, the lead-out electrode 3b can be integrated with the wire 5, so the lead-out electrode 3b can also be eliminated. The lower electrode 3 a of each two-terminal chip 2 is connected to one pixel electrode 4 . Because the lead-out electrode 3a is very thin and has a much smaller area than the pixel electrode 4, the lead-out electrode 3a can be integrated with the pixel electr...

Embodiment 3

[0041] MIM is an example of an active matrix board made up of two-terminal devices.

[0042] Accompanying drawings 12 and 13 show examples of active matrix boards formed by MIM as a two-terminal device according to the structure of accompanying drawings 1 and 2. The MIM elements 2 are arranged in a matrix by pixel positions. The lower electrode 3 a of each MIM element 2 is connected to one pixel electrode 4 . The pixel electrode 4 is a thin film electrode made of ITO (Indium Tin Oxide). The pixel electrodes are insulated from each other. The other electrodes 3b of the MIM element 2 are connected in rows by wires 5 in the polymer as required by the active matrix. The polymer 1 fills the gap between the MIM element 2, the lead-out electrodes 3a, 3b, and the wire 5a to form a cuboid shape, and all the MIM elements 2, lead-out electrodes 3a, 3b, and wire 5a are embedded in the polymer 1. Active Matrix Board6. The outer surface of the pixel electrode 4 is in the same plane as ...

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Abstract

A active matrix plate is formed by arranging two-terminal device according to picture element position or requirement of the active matrix and to bury it into the polymer. One end of the two-terminal device is connected to picture element electrode at surface of two-terminal device plate, another end of it is connected to electricity as required by the active matrix and the picture element electrode is set on surface of the two-terminal device plate.

Description

technical field [0001] The invention belongs to the field of flat panel display in optoelectronic technology, and particularly relates to active matrix technology. Background technique [0002] The active matrix consists of many three-terminal active devices or two-terminal active devices arranged in a matrix on a glass substrate, and is used for color liquid crystal display devices and organic light-emitting display devices with large information capacity. A commonly used three-terminal active device is a thin film field effect transistor (abbreviated as TFT). This element has three terminals such as input terminal (source), output terminal (drain) and control terminal (gate). By depositing metal film, amorphous silicon or polysilicon film, oxidation Thin films are made by 5 to 6 times of metal and metal oxide deposition and photolithography overlithography and other processes. [0003] The active matrix can also use thin-film diodes (referred to as TFD), back-to-back dio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133H01L49/02G02F1/136G09F9/30H10N97/00
Inventor 黄子强王继岷杨文君
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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