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1. (WO2018161814) TESTING BACKLIGHT SOURCE AND OPERATION METHOD THEREOF, AND TESTING DEVICE FOR DISPLAY PANEL

Pub. No.:    WO/2018/161814    International Application No.:    PCT/CN2018/077258
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Tue Feb 27 00:59:59 CET 2018
IPC: G09G 3/00
Applicants: BOE TECHNOLOGY GROUP CO. , LTD.
京东方科技集团股份有限公司
BEIJING BOE SPECIAL DISPLAY TECHNOLOGY CO. , LTD.
北京京东方专用显示科技有限公司
Inventors: ZHU, Huizhong
朱麾忠
Title: TESTING BACKLIGHT SOURCE AND OPERATION METHOD THEREOF, AND TESTING DEVICE FOR DISPLAY PANEL
Abstract:
The present invention relates to the field of display technology. Provided are a testing backlight source and an operation method thereof, and a testing device for a display panel. The testing backlight source comprises: a plurality of light-emitting units (11) capable of emitting light beams of different colors, wherein respective monochromatic light beams emitted by the plurality of light-emitting units (11) can mixed into a white light beam; a driving circuit (12) for providing driving signals to the respective light-emitting units (11) to drive emission of light by the corresponding light-emitting units (11), wherein duty cycles of the driving signals are adjustable; and a controller (13) capable of adjusting the duty cycles of the driving signals corresponding to the respective light-emitting units (11) so as to move a color coordinate of the white light beam formed by mixing the monochromatic light beams emitted by the plurality of light-emitting units (11) to a preset color coordinate.