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Active matrix display

An active matrix and display technology, applied in the field of active matrix displays, can solve problems such as visual sensory artifacts and impedance increase

Inactive Publication Date: 2010-12-08
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, while avoiding the need for a dedicated row driver PCB, these methods produce connections with increased impedance compared to connections on a PCB (metal tracks on a glass substrate)
These increased impedances can cause visual sensory artifacts

Method used

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  • Active matrix display
  • Active matrix display
  • Active matrix display

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0032] figure 1 A conventional pixel configuration for an active matrix liquid crystal display is shown. The display is arranged as an array of pixels in rows and columns. Each row of pixels shares a common row conductor 10 and each column of pixels shares a common column conductor 12 . Each pixel includes a thin film transistor 14 and a liquid crystal cell 16 arranged in series between a column conductor 12 and a common electrode 18 . Transistor 14 is switched on and off according to the signal provided on row conductor 10 . In this way, the row conductor 10 is connected to the gate 14a of each transistor 14 of the associated pixel row. Each pixel additionally includes a storage capacitor 20 connected at one end 22 to a next row electrode, a previous row electrode, or a separate capacitor electrode. This capacitor 20 stores the drive voltage, so that the signal is maintained across the liquid crystal cell 16 even after the transistor 14 has been switched off.

[0033] In...

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PUM

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Abstract

An active matrix display is provided with conductor lines (62a, 62b, 62c) extending along edges of the display over the display substrate but outside the display area (63). These conductor lines comprise at least one layer (90) which is additional to the thin film layers defining the array of pixels. Row driver circuitry and / or column driver circuitry has a portion (40,50) provided on the common substrate outside the display area (63) and which connects to the conductor lines. A dedicated process can be used for the conductor lines in order to form a low resistance lines. These assist in the integration or mounting of row or column driver circuits onto the common substrate.

Description

technical field [0001] The present invention relates to active matrix displays. Background technique [0002] An active matrix liquid crystal display (AMLCD) is a well known example of an active matrix display. In such displays, liquid crystals are sandwiched between active and passive plates. The active plate includes a plurality of electrodes that apply an electric field to the liquid crystal, and the electrodes are usually arranged in an array. Row and column electrodes extend along the rows and columns of pixel electrodes and typically provide data signals to the pixels using thin film drive transistors that drive the respective pixel electrodes. [0003] In addition to the drive transistor, each pixel may also include a capacitor to maintain a charge on the pixel. [0004] One challenge is providing the circuitry necessary to decode the input signal and drive the row and column electrodes. Typically, such driving circuits are mounted around the outside of the pixel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G02F1/1362G02F1/1345G02F1/13G09G5/00
CPCG02F1/13454G09G2320/02G02F1/1345G09G2320/04G09G2340/14G09G5/006G09G2300/0426G09G3/20
Inventor S·C·迪恩
Owner INNOLUX CORP