Method and device for reducing ghost images and crosstalk of 3D (Three-dimensional) television

Abstract

The invention discloses a method for reducing ghost images and crosstalk of a 3D television. The method comprises the steps of: driving a liquid-crystal screen to continuously display a same frame picture for n times; judging whether the proportion ps of a screen area, which meets liquid-crystal display response time 1r, occupying a full screen is larger than or equal to 1 or not when the same frame picture is displayed for n times; and turning on a full-screen backlight to display the same frame picture when ps is larger than or equal to 1, or else, turning on the backlight in a strip-by-strip way by adopting a backlight strip scanning approach so as to display the same frame picture. The invention further provides a corresponding device. According to the method and the device for reducing the ghost images and the crosstalk of the 3D television, provided by the invention, the ghost images and the crosstalk of a shutter glass type 3D television can be reduced.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a method and a device for reducing ghost interference of 3D TV. Background technique [0002] The current mainstream 3D TVs are divided into polarized and active shutter types, both of which require users to wear 3D glasses. [0003] The former polarized 3D TV adopts the polarizing film pasted on the LCD screen with odd and even rows interlaced. Circularly polarized left-eye lenses in the clockwise direction and circularly polarized right-eye lenses in the counterclockwise direction. In this way, through the glasses, the user’s left eye sees the left picture content of the odd-numbered lines on the screen, and cannot see the right picture content of the even-numbered lines. What the right eye sees is the right picture content of the even-numbered lines on the screen, and cannot see the left picture content of the odd-numbered lines, thereby seeing the 3D effect of the video...

AI Technical Summary

Problems solved by technology

Since the LCD screen displays the entire left or right screen each time, the clarity of the screen is good without loss. However, due to the inherent response time of the liquid crystal in the LCD screen r , in the process of alternately displaying the left picture and the right picture, if the liquid crystal has not been completely deflected, the user will see the content of the previous frame, causing ghost crosstalk

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