Three-dimensional (3D) image display method and 3D liquid crystal television

Abstract

The invention relates to a three-dimensional (3D) image display method which comprises the following steps of: extracting a field synchronous signal or a column synchronous signal in a 3D image signal, and producing a 3D glasses control signal; opening a left eyeglass or a right eyeglass of a pair of 3D glasses at a preset moment of the current field of a liquid crystal display screen, and closing the right eyeglass or the left eyeglass; at a preset moment of the subsequent field, closing the left eyeglass or the right eyeglass of a pair of 3D glasses, and opening the right eyeglass or the left eyeglass; within a time period of opening the left eyeglass, turning off the backlight of an image row of a right eye; within a time period of opening the right eyeglass, turning off the backlight of an image row of a left eye; and dynamically updating turn-on and turn-off of the backlight along with the images of the left eye or the images of the right eye. By the method, the problem of interference of the images of the left eye and the right eye in a 3D image display process can be solved; the display brightness and a display effect of a 3D image can be obviously improved; furthermore, the technical requirement on a liquid crystal display screen module is also reduced; and the cost of the whole machine is reduced.

Description

technical field [0001] The invention relates to a display method of 3D images and a 3D liquid crystal television. Background technique [0002] The basic principle of 3D display of LCD TV is to transmit two images with parallax to the left eye and right eye of the person without interference through the processing of the circuit, and form a three-dimensional feeling under the synthesis of the cerebral cortex. [0003] At present, 3D display technology can be divided into two categories: glasses type and naked-eye type, and glasses type 3D technology can be further divided into chromatic aberration type, polarized light type and active shutter type. [0004] The main principle of the active shutter 3D technology is to divide the 3D video image into two frames to form two images corresponding to the left eye and the right eye. Through the cooperation of the shutter 3D glasses, these two groups of images enter the left eye respectively. and the right eye, and finally synthesiz...

AI Technical Summary

Problems solved by technology

Although this method can realize the separation of the left and right eye images of 3D video, it is affected by the refresh rate of the liquid crystal display and the mutual interference of the brightness between the various areas of the backlight module, resulting in a much lower image brightness in the 3D state than in the 2D state. Moreover, the 3D image cross-interference control effect is not ideal

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