Grayscale compensation method, device and system for organic light-emitting display panel

Abstract

The embodiment of the invention discloses a grayscale compensation method, device and system for an organic light-emitting display panel. The grayscale compensation method comprises the steps of determining a brightness-grayscale formula of each combined pixel unit according to the combined brightness of each combined pixel unit of the organic light-emitting display panel under at least three grayscales; and calculating a target grayscale value and a grayscale compensation value of each combined pixel unit according to the brightness-grayscale formula defined in the description and the targetcombined brightness of the combined pixel unit under the first grayscale. In the embodiment of the invention, grayscale compensation data calculation and grayscale compensation are carried out by taking the combined pixel unit as the minimum unit, the compensated picture is excellent in brightness uniformity, the number of taken pictures and the picture taking time are greatly reduced, the calculation process is simple, the calculated data is small in amount and facilitated to be stored, and the calculation efficiency of the grayscale compensation data is improved.

Description

technical field [0001] Embodiments of the present invention relate to display technologies, and in particular to a gray scale compensation method, device and system for an organic light emitting display panel. Background technique [0002] Active-matrix organic light-emitting diode (AMOLED, Active-matrix organic light emitting diode) display screen is to use the thin-film transistor TFT array substrate circuit to evaporate organic light-emitting device OLED to realize self-illumination and display the picture. AMOLED display has performance advantages such as low power consumption, high contrast ratio, wide color gamut, wide viewing angle, wide operating temperature range, and fast response time, and has a foldable and rollable flexible form, which is suitable for use in flexible display devices middle. [0003] In AMOLED display, when evaporating organic light-emitting devices on the TFT array substrate circuit, it is necessary to separately evaporate red organic light-emi...

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Problems solved by technology

[0003] In the AMOLED display, when evaporating organic light emitting devices on the TFT array substrate circuit, it is necessary to separately evaporate red organic light emitting devices R, green organic light emitting devices G, and blue organic light emitting devices B, so the process cannot guarantee R, The device performance of G and B is exactly the same

If there is a difference in the device performance of the red organic light emitting device R, the green organic light emitting device G, and the blue organic light emitting device B in the AMOLED display, it is easy to cause uneven brightness of the screen and cause defective products

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