Three-dimensional (3D) liquid crystal display driving method and 3D liquid crystal display system

Abstract

The invention discloses a three-dimensional (3D) liquid crystal display driving method which includes the following steps: S1, generating at least two scanning clock signals in a data signal output period, outputting corresponding effective data area signals of a left eye and a right eye after processing input image signals; S2, outputting at least two scanning clock signals synchronously; and S3, driving the liquid crystal panel to conduct at least two lines of scanning synchronously and displaying the processed image signals according to the at least two scanning clock signals. The invention further discloses a display system which comprises a time schedule controller and a grid driver. The time schedule controller comprises a STV, CKV and OE processing circuit which is used for processing the input image signals. The grid driver is used for driving the liquid crystal panel to conduct at least two lines of scanning synchronously. The 3D liquid crystal display driving method and the 3D liquid crystal display system reduce liquid crystal scanning time and lower requirements of 3D display refreshed at high speed for the liquid crystal panel and a chip.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a 3D liquid crystal display driving method and a 3D liquid crystal display system. Background technique [0002] like figure 1 As shown, the traditional 120Hz driving 3D technology without backlight scanning opens the glasses to watch the 3D effect in the blank (Blank) area after the image scanning is completed, but this has the problem that the flipping time of the upper and lower liquid crystals of the LCD panel is inconsistent and the viewing time is short. [0003] Different from the above-mentioned traditional 120Hz 3D SG control method without backlight scanning, there is also a 120Hz 3D display method using backlight scanning in the prior art. Its circuit control block diagram is as follows figure 2 Shown: The motherboard gives 60Hz signal LVDS (low voltage differential signal) (left, right, up and down, row interleaving, etc.), and the timing controller ...

AI Technical Summary

Problems solved by technology

[0005] However, the current light guide plate and backlight technology cannot realize that only the area corresponding to the light bar is turned on, and the area where the light bar is not turned on is not bright, so the crosstalk rate of the left and right eyes is relatively large during this kind of 3D display, and at the same time, it corresponds to the area of ​​the LCD. Response speed requirements are strict, resulting in high product cost, 3D effect and large crosstalk ghosting of the left and right eyes (the left eye sees the image of the right eye)

[0006] Recently, 240Hz 3D display technology with better display effect has emerged, and its backlight generally adopts a blinking method (such as Figure 5 As shown) and the backlight is always on. This display technology requires the liquid crystal to respond very quickly. At present, only a few manufacturers have mastered the copper process to reduce the charging time of the liquid crystal and the 240Hz full scan technology, and it exists in the display screen. The trade-off between upper, middle and lower brightness unevenness and small crosstalk, in addition, it also requires LCD panels with high specifications (short charging time), chips with fast operation speed (high IC specifications), and a new high-speed signal interface (AIPI)

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