Display device and image compensation method thereof

Abstract

The invention discloses a display device and an image compensation method thereof. The display device comprises an ambient light detector, a display image content analyzer and an image compensation processor, wherein the ambient light detector detects the ambient light brightness and generates the ambient light brightness grade according to the ambient light brightness; the display image content analyzer receives and analyzes the display image data and generates the display image data brightness grade according to the brightness of the display image data; the image compensation processor generates an image brightness enhancement value, an image color compensation value and an image edge enhancement degree according to the ambient light brightness grade and the display image data brightness grade; and the image compensation processor performs image processing on the display image data according to the image brightness enhancement value, the image color compensation value and the image edge enhancement degree to generate the image data after compensation.

Description

technical field [0001] The invention relates to an image compensation method of a display device, and in particular to an image compensation method performed by the display device as the environment brightness changes. Background technique [0002] In known technologies, it is common for a display device to correspondingly adjust the brightness of a displayed image according to the brightness of ambient light. In this known method, in a high-resolution display device, in order to increase the brightness of the displayed image, it means that the brightness of the backlight module of the display device must be increased, or the thickness of the color filter of the display device shall be reduced to Improve light transmittance. However, increasing the brightness of the displayed image by increasing the brightness of the backlight module of the display device will greatly increase the power consumption of the display device. However, reducing the thickness of the color filter ...

AI Technical Summary

Problems solved by technology

However, when the display image produced by the display device is a high-brightness image (such as an image of snow), this method will only cause the display image to be saturated, that is, the entire display screen is almost white, and Causes the user to be unable to see the details in the displayed image

[0004] Furthermore, due to the high brightness of the ambient light, if the image brightness is improved by processing image data, firstly, the adjustment method is very limited, and secondly, excessive processing of such high image brightness will only make the The displayed image is saturated (such as a snow map), that is, the entire display screen is almost white, and the user still cannot see the details in the image

Images