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LED (Light-Emitting Diode) micro-display device based on active/passive combined addressing

A technology of micro-display and LED array, applied in static indicators, instruments, etc., can solve the problem of small pixel pitch, and achieve the effect of high resolution and great practical application value

Active Publication Date: 2012-10-31
刘纪美
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: how to overcome the problems that the resolution of the LED micro-display becomes higher and higher and the pixel pitch becomes smaller and smaller

Method used

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  • LED (Light-Emitting Diode) micro-display device based on active/passive combined addressing
  • LED (Light-Emitting Diode) micro-display device based on active/passive combined addressing
  • LED (Light-Emitting Diode) micro-display device based on active/passive combined addressing

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Embodiment Construction

[0035] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0036]Firstly, the passive addressable LED microdisplay device and the active addressable LED microdisplay device are further described, so as to better understand the present invention.

[0037] figure 1 It is a schematic diagram of the circuit structure of the LED micro-display device 001 with passive address selection. The passive addressable LED microdisplay includes a certain number of LED pixels 002, and the LED pixels 002 are arranged as an array with a specific resolution. The N electrodes of the LED pixels in the same row are connected to the row common main line 003, and the P electrodes of the LED pixels in the same column are connected to the column common main line 004. During normal operation, the row scanning signal is applied to a certain row, while the column scanning signal is ap...

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Abstract

The invention discloses an LED (Light-Emitting Diode) micro-display device based on active / passive combined addressing. The LED micro-display device comprises at least one LED array elementary unit and a silicon-based active driving substrate; the silicon-based active driving substrate comprises at least one silicon-based active driving substrate elementary unit; each LED array elementary unit corresponds to the silicon-based active driving substrate elementary unit; and at least one LED array elementary unit is bonded with at least one silicon-based active driving substrate elementary unit through a flip chip technology. The LED micro-display device combines the advantages of two driving manners of active addressing and passive addressing; and meanwhile, the defects of the two driving manners can be overcome. Under the condition of not increasing the difficulties of circuit design and a preparation technique, the LED micro-display technology with high resolution and fine pixel is realized in a manner of partially carrying out the passive addressing and entirely carrying out the active addressing. The LED micro-display device has great actual application value.

Description

technical field [0001] The invention relates to the technical field of LED micro-displays, in particular to an LED micro-display device adopting active / passive hybrid address selection. The LED micro-display device provided by the invention has ultra-high resolution. Background technique [0002] According to different site selection methods, LED micro-display technology can be divided into passive site selection and active site selection. [0003] In passive addressable LED display array technology, the anodes of the LED pixels in each row are connected together to receive the row scan signal, and the cathodes of the LED pixels in each column are connected together to receive the column scan signal. In normal operation, the row scanning signal is applied to a certain row, and the column scanning signal is applied to a certain column at the same time. At this time, the LED at the intersection of the row and the column will have a current flow, and the LED will emit light. P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
Inventor 刘纪美刘召军俞捷庄永漳黄嘉铭
Owner 刘纪美