Backlight adjusting method and backlight adjusting device of display panel, and display apparatus

Abstract

Embodiments of the invention disclose a backlight adjusting method and a backlight adjusting device of a display panel, and a display apparatus. The backlight adjusting method comprises: obtaining a first component, a second component and a third component of each pixel unit in a first color space; obtaining the tone angle value and the saturation degree in a second color space according to an average value of the first components, an average value of the second components and an average value of the third components of the pixel units; obtaining the set brightnesses of a blue backlight moduleand a green backlight module according to the tone angle value and the saturation degree; adjusting the brightness of the blue backlight module according to the set brightness of the blue backlight module; and / or adjusting the brightness of the green backlight module according to the set brightness of the green backlight module, wherein the set brightness of the blue backlight module is less thanthe brightness of the blue backlight module before adjustment, and the set brightness of the green backlight module is less than the brightness of the green backlight module before adjustment. According to the technical scheme of the method, the device and the apparatus, the problem of severe hue errors of red pixel units by the short-wavelength light is solved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular, to a method for adjusting a backlight of a display panel, a device for adjusting a backlight, and a display device. Background technique [0002] With the increasing application of liquid crystal display devices, the color shift phenomenon of liquid crystal display devices under the condition of large viewing angle has become an urgent problem to be solved in the development of liquid crystal display panels. [0003] A liquid crystal display device generally includes a plurality of pixel units, and the color presented by the red pixel unit is not only affected by the transmission spectrum of the red color resistance in the color filter substrate in the liquid crystal display device, but also by the transmission spectrum of the liquid crystal and the light source. The influence of the emission spectrum. However, the red color resist has a phenomenon of pe...

AI Technical Summary

Problems solved by technology

However, the red color resistance has a phenomenon of penetration and leakage of some short-wavelength light, which causes the color of the red pixel unit to be orange-red.

The transmittance of short-wavelength light has a ratio compared to the transmittance of long-wavelength light. This ratio is much larger than that of the front view in the case of large viewing angles, resulting in serious color shift of the red pixel unit in the case of large viewing angles.

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