Unlock instant, AI-driven research and patent intelligence for your innovation.

Liquid crystal display panel with detection function

A liquid crystal display panel, scanning test technology, applied in the direction of nonlinear optics, instruments, optics, etc., can solve problems such as the difference in line impedance, the difference in signal uniformity of odd and even data test lines, etc., to achieve the effect of ensuring uniformity

Inactive Publication Date: 2016-11-23
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the even-numbered switches are not designed for compensation, there will be a difference in line-changing impedance, so there will be differences in the signal uniformity of the odd-even data test line

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Liquid crystal display panel with detection function
  • Liquid crystal display panel with detection function
  • Liquid crystal display panel with detection function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] The liquid crystal display panel with detection function in the embodiment of the present invention includes: a switch circuit, a data test line and at least two scan test lines. The switch circuit is used to turn on or off the test function of the liquid crystal display panel; the data test line is connected to the scan line or data line of the liquid crystal display panel through the switch circuit; at least two scan test lines are used t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a liquid crystal display panel with a detection function. The liquid crystal display panel comprises a switching circuit, a data testing line and at least two scanning testing lines, wherein the switching circuit is used for opening or closing a testing function of the liquid crystal display panel; the data testing line is connected to a scanning line or a data line of the liquid crystal display panel through the switching circuit; and the scanning testing lines are used for testing the scanning line or the data line of the liquid crystal display panel under the controlling of the switching circuit. With the adoption of the manner, the switching of the data testing line does not need to be carried out in a testing process and the uniformity of the testing of the data lines with odd and even numbers can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display panel with detection function. Background technique [0002] In small-sized liquid crystal display panels, in order to prevent the waste of module materials, cell circuits are added to the panel design for R, G, B or grayscale screen testing, and bad panels are blocked for inspection. In the Cell process. Common Cell test circuit equivalent circuit such as figure 1 , including one scan test line and two data test lines, the scan test line is connected to the gate of the switch to control the switch on or off, one data test line DO is connected to the drain of the odd switch, and the other data test line DE is connected to the drains of the even-numbered switches, and the sources of the switches are connected to the data lines or scan lines to be tested. In the figure, D1, D2, D3, and D4 may be the data lines or scan lines to be tested. T...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362
CPCG02F1/1362G02F1/136254
Inventor 陈彩琴连校许
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD