Color temperature switching device as well as method and display device thereof

Abstract

The invention provides a color temperature switching device as well as a method and a display device thereof. The color temperature switching device is mounted inside the display device and comprises a control unit, a storage unit and a register unit which are connected in sequence, wherein the storage unit is used for storing multiple color temperatures; the register unit is provided with a plurality groups of gray scales; each group of the gray scales corresponds to one color temperature; the control unit is used for controlling switching of multiple color temperatures of the storage unit, thereby achieving switching of different color temperatures in the color temperature switching device. The method is simple, the situation that a pure white picture or gray scale is required to be adjusted when different color temperatures are needed in the prior art is avoided, and the time cost is reduced; in addition, due to arrangement of the color temperature switching device inside the display device, different color temperatures can be selected according to different demands, the color temperatures are not required to be adjusted at a display device system terminal, and both the problem of color deviation caused by color temperature adjustment of the system terminal is solved, and the application difficulty of the system terminal is alleviated.

Description

technical field [0001] The invention relates to the field of flat panel display, in particular to a color temperature switching device, a method thereof, and a display device. Background technique [0002] Color temperature is considered a parameter for display devices, whether it is under daylight-colored fluorescent lighting, light bulb-colored fluorescent lighting, or direct sunlight, the appearance of the picture will vary according to the intensity of the surrounding ambient light. And become very different. Each environment has a different color temperature, and the color temperature preferred by each user is not the same due to the difference in the user's environment. [0003] Display devices currently used in display terminals mainly include LCD (Liquid Crystal Display) and AMOLED (Active Organic Light Emitting Display), both of which internally select a single color temperature of 6500K to modulate a gamma (Gamma) curve. Therefore, to display other color temperat...

AI Technical Summary

Problems solved by technology

[0004] However, the first method is simple color temperature adjustment for the highest-level white screen, and the other gray scales are not adjusted; although the second method can adjust the color temperature of the gray scale, because the adjustment method needs to match the gamma curve of the display device itself, the adjustment is time-consuming and laborious. ; Moreover, because the display device itself has been set with a Gamma curve with a fixed color temperature, the Gamma of other color temperatures at the system end will often cause gray-scale color cast due to different adjustment methods, which will affect the gray-scale display effect; in addition, the two adjustment methods It is all completed on the system side of the display device, and the color temperature Gamma adjustment is time-consuming and labor-intensive, which increases the difficulty of system-side application

Images