Display device and gamma curve adjusting method thereof

Abstract

The invention discloses a display device and a gamma curve adjusting method thereof, and the method is characterized in that the method comprises the steps: adjusting gamma values corresponding to allgray scales in a full gray scale range to a target gamma value; and adjusting a first gamma value corresponding to each gray scale in a first gray scale area smaller than or equal to the first boundary gray scale, so that the first gamma value is smaller than the target gamma value. By adjusting the gamma value corresponding to the gray scale, the chromaticity visual angle of the display device can be improved under the condition that the manufacturing process is not changed, and the display effect is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display device and a method for adjusting a gamma curve thereof. Background technique [0002] Liquid crystal displays have been widely used. Common display modes include TN (Twisted Nematic), IPS (In-Plane Switching) and VA (Vertical Alignment liquid crystal), and different display modes have their own advantages and disadvantages. Among them, the contrast ratio of VA display mode is much higher than that of IPS, the response time is faster, and at the same time, no friction alignment is required, and it has become a common display mode for large-size TV LCD panels. However, due to the different birefringence effects of liquid crystals, VA-type liquid crystal displays will have a larger deviation in viewing angle than IPS-type liquid crystal displays, resulting in the drift of the V-T curve of the VA-type liquid crystal display under the condition of a large viewing angle (of...

AI Technical Summary

Problems solved by technology

However, due to the different birefringence effects of liquid crystals, VA-type liquid crystal displays will have a larger deviation in viewing angle than IPS-type liquid crystal displays, resulting in the drift of the V-T curve of the VA-type liquid crystal display under the condition of a large viewing angle (off-axis), resulting in a decrease in p

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