Testing method and apparatus for display panel
A technology of display panel and test method, applied in static indicators, instruments, etc., can solve the problems of poor Mura, easy missed detection, etc., and achieve the effect of improving efficiency, high accuracy, and realizing automation
Active Publication Date: 2016-05-25
BOE TECH GRP CO LTD
View PDF9 Cites 20 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Aiming at the defects in the prior art, the present invention provides a test method and device for a display panel, which can solve the problem of poor Mura easily missed in the prior art
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] figure 1 It is a structural schematic diagram of a display panel in an embodiment of the present invention. see figure 1 , the display panel includes a plurality of light emitting elements L0 respectively disposed in a plurality of pixel regions P0. It can be understood that the light-emitting element can be any electronic device that ca...
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
Login to View More Abstract
Provided in the invention is a testing method and apparatus for a display panel. The testing method comprise: a data signal of a preset testing picture is outputted to a display panel, so that a plurality of light-emitting elements emit light according to the preset testing picture; a starting signal is outputted to a scanning unit, so that the scanning unit outputs effective levels of a switch unit to a plurality of first scanning lines successively according to a preset time sequence; a sensing signal of a sensor unit is received, wherein the sensing signal includes voltage value information of a first end of each light-emitting element; and the voltage value information of the first end of each light-emitting element in the sensing signal is compared with the preset testing picture to obtain a testing result. Therefore, with the method and apparatus, a problem of easy leak checking due to poor mura in the prior art can be solved. The accurate degree is high; the automation of the detection process can be realized; and the processing efficiency of the testing process in the technological process can be improved well.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a method and device for testing a display panel. Background technique [0002] In the production process of the existing display device, Mura (non-uniform display brightness) is a kind of defect that easily occurs and seriously affects the display effect. For example, in an AMOLED (Active-MatrixOrganicLightEmittingDiode, active-matrix organic light-emitting diode) display device, the threshold voltage drift of the thin-film transistor, the aging of the OLED device, and the process difference between different pixels may cause differences in the luminance of different pixels. There are dark spots, dark areas or stripes on the screen, which seriously affects the normal screen display effect. In order to prevent such defective display panels from being made into products according to the normal process and circulated to the market, resulting in waste of manpower and material resou...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00
CPCG09G3/006G09G3/3225G09G2310/08G09G2330/02G09G2330/10
Inventor 徐攀袁广才李永谦韩东旭
Owner BOE TECH GRP CO LTD