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1. (WO2018040227) DISPLAY APPARATUS AND BRIGHTNESS ADJUSTMENT METHOD THEREFOR

Pub. No.:    WO/2018/040227    International Application No.:    PCT/CN2016/101613
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Tue Oct 11 01:59:59 CEST 2016
IPC: G09G 5/10
Applicants: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
武汉华星光电技术有限公司
Inventors: PENG, Haibo
彭海波
LI, Dejiun
李得俊
Title: DISPLAY APPARATUS AND BRIGHTNESS ADJUSTMENT METHOD THEREFOR
Abstract:
A display apparatus and a brightness adjustment method therefor. The display apparatus comprises a plurality of pixel units (10). Each of the pixel units (10) comprises a red sub-pixel (R), a green sub-pixel (G), a blue sub-pixel (B) and a white sub-pixel (W). The method comprises: acquiring a standard gamma curve for adjusting the brightness of the display apparatus, the gamma value of said standard gamma curve being γ0; acquiring a green gamma curve corresponding to the green sub-pixel (G), wherein the gamma value of the green gamma curve is γG; and adjusting the green gamma curve to be offset from the standard gamma curve, so as to improve the greyscale brightness of the green sub-pixel (G), where γG<γ 0. The colour gamut of the display apparatus is 77 percent or more of the NTSC colour gamut. The problem of low brightness in colour pictures displayed by a display apparatus having an RGBW pixel structure is improved.