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Active matrix display

An active matrix and display technology, applied in the field of active matrix displays, can solve problems affecting power consumption of displays

Inactive Publication Date: 2007-08-01
TPO HONG KONG HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The charging and discharging of the column capacitance will affect the power consumption of the display

Method used

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Examples

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Embodiment Construction

[0039] Referring to FIG. 1, this is a concise circuit diagram of a commonly used form of AMLCD, which includes a row and column matrix array (N×M) of display pixels 10, as shown in the figure. The display pixels each have a liquid crystal display element 18 and an associated TFT 12 used as a switch, and the pixels are addressed by respective sets of (M) rows and (N) columns of address electrodes 14 and 16. For brevity, only a few display pixels are shown here, but in reality there can be hundreds of rows and hundreds of columns of pixels. The drain of the TFT 12 is connected to the corresponding display element electrode disposed near the intersection of the corresponding row and column address electrodes, while the gates of all the TFTs associated with each row of display pixels 10 are connected to the same row address electrode 14, and The sources of all TFTs related to the display pixels of each column are connected to the same column address electrode 16. The electrodes 14, 16...

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Abstract

An active matrix display device includes a plurality of pixels (10) arranged as rows and columns and column electrodes (16) extending along corresponding columns of pixels (10). The pixels include a capacitance (18,70) for storing image data and a read circuit for reading the charge stored on the capacitance (18,70) and driving the column electrode with the read charge.

Description

Technical field [0001] The present invention relates to an active matrix display including an array of display pixels, in particular (but not only) an active matrix liquid crystal display and an active matrix electroluminescence display. Background technique [0002] Active matrix displays, especially active matrix liquid crystal displays (AMLCD), are used more and more widely in the production field. Perhaps the most familiar ones are laptop computer screens, notebook computer screens, desktop computer monitors, PDAs, electronic organizers, and mobile phones. [0003] A specific active matrix display is exemplified here as AMLCD. Its structure and general operation are described in, for example, US-A-5130829, and the entire content of the document is incorporated herein by reference. Briefly, this type of display includes an array of pixels arranged in rows and columns, and each pixel includes an electro-optical display element and related switching devices, usually in the form ...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/32G02F1/1368G02F1/133G09G3/20G09G3/30H01L29/786H01L51/50
CPCG09G2300/0828G09G2300/0842G09G2310/0262G09G3/30G09G2330/022G09G2300/0809G09G3/20G09G2320/029G09G2330/021G09G2320/0233G09G3/3291
Inventor J·R·A·艾雷斯M·J·爱德华兹
Owner TPO HONG KONG HLDG
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