Test circuit, display device and test method of driving circuit

A technology for testing circuits and driving circuits, used in static indicators, instruments, etc., can solve the problem of inability to determine the specific location of abnormal operation of the driving circuit, and achieve the effect of improving performance and yield

Active Publication Date: 2015-01-21
BOE TECH GRP CO LTD +1
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a test circuit, a display device and a test method for a drive circuit, which is used to solve the problem that the test circui

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
  • Test circuit, display device and test method of driving circuit
  • Test circuit, display device and test method of driving circuit
  • Test circuit, display device and test method of driving circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] figure 2 It is a schematic structural diagram of a test circuit provided by Embodiment 1 of the present invention. Such as figure 2 As shown, the test circuit includes a first signal input line Test Input1, a first signal output line Test Pad1 and a plurality of first thin film transistors T1. The first signal input line Test Input1 is connected to the gate of the first thin film transistor T1, the first signal output line Test Pad1 is connected to the first electrode of the first thin film transistor T1, and the first thin film The second pole of the transistor T1 is connected to the driving circuit 101 through gate lines (Gate 1, Gate 2 . . . Gate End). Optionally, the driving circuit 101 includes a gate driving circuit, a reset driving circuit, and an emission driving circuit. In practical applications, the test circuit can also be applied to other driving circuits. The test circuit provided in this embodiment can not only evaluate the overall driving effect of...

Embodiment 2

[0037] Figure 4 It is a schematic structural diagram of a test circuit provided by Embodiment 2 of the present invention. Such as Figure 4 As shown, the test circuit includes a first signal input line Test Input1, a first signal output line Test Pad1 and a plurality of first thin film transistors T1. The first signal input line Test Input1 is connected to the gate of the first thin film transistor T1, the first signal output line Test Pad1 is connected to the first electrode of the first thin film transistor T1, and the first thin film The second pole of the transistor T1 is connected to the driving circuit 101 through gate lines (Gate 1, Gate 2 . . . Gate End). Optionally, the drive circuit includes a gate drive circuit, a reset drive circuit, and an emission drive circuit. In practical applications, the test circuit can also be applied to other driving circuits. The test circuit provided in this embodiment can not only evaluate the overall driving effect of the driving...

Embodiment 3

[0044] Image 6 It is a schematic structural diagram of a test circuit provided by Embodiment 3 of the present invention. Such as Image 6 As shown, the test circuit includes a first signal input line Test Input1, a second signal input line Test Input2, a first signal output line Test Pad1, a second signal output line Test Pad2, a plurality of first thin film transistors T1 and a plurality of The second thin film transistor T2. The first signal input line Test Input1 is connected to the gate of the first thin film transistor T1, the first signal output line Test Pad1 is connected to the first electrode of the first thin film transistor T1, and the first thin film The second pole of the transistor T1 is connected to the driving circuit 101 through gate lines (Gate 1, Gate 2 . . . Gate End). The second signal input line Test Input2 is connected to the gate of the second TFT T2, the second signal output line Test Pad2 is connected to the first electrode of the second TFT T2, a...

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 provides a test circuit, a display device and a test method of a driving circuit. The test circuit comprises a first signal input line, a first signal output line and a plurality of first thin film transistors, wherein the first signal input line is connected with grid electrodes of the first thin film transistors, the first signal output line is connected with first electrodes of the first thin film transistors, and second electrodes of the first thin film transistors are connected with the driving circuit. Therefore, under the condition of not increasing production technology processes, the working performance of the driving circuit can be evaluated in the production process, an abnormal position can be accurately determined, and performance and the yield of products are improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a test circuit, a display device and a test method for a drive circuit. Background technique [0002] Gate Driver on Array (GOA) technology is a process technology that directly manufactures a driving circuit on an array substrate, thereby replacing a driving chip made of an external silicon chip. The technology can reduce the technological process, reduce the technological cost, and improve the integration degree of the liquid crystal display panel. [0003] The production process of the driving circuit is complicated, and any abnormality in the process may cause the product to be defective. Therefore, a test circuit that can timely and effectively judge whether the driving circuit is operating effectively is needed. [0004] figure 1 It is a structural schematic diagram of a test circuit in the prior art. Such as figure 1 As shown, the test circuit tests the drive circuit ...

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
IPC IPC(8): G09G3/00
Inventor 刘祺张蕾
Owner BOE TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap