A display driving circuit and display method

Abstract

The present invention provides a display driving circuit and a display method. The display driving circuit includes a front-end input module to provide control signals; a timing control module to provide display codes and timing signals; a detection control module to be electrically connected to the front-end input module and the timing control module , when the control signal is detected, the voltage difference between each gamma reference voltage and the common electrode voltage is reduced according to the timing signal, so as to reduce the gamma reference voltage difference and thereby reduce the gamma voltage difference to insert a dark frame The source driving module is electrically connected to the detection control module and the timing control module, and outputs a source driving signal to drive display image frames or dark state frames according to the received display code and gamma reference voltage. The display driving circuit and display method provided by the present invention reduce the gamma voltage difference to be close to the common electrode voltage so as to insert a dark state frame and improve the display effect.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display driving circuit and a display method. Background technique [0002] Due to the advantages of thinness, energy saving, and no radiation, liquid crystal display devices are currently widely used in electronic equipment such as televisions, personal computers, tablet computers, PDAs (Personal Digital Assistants, personal digital assistants), mobile phones, and digital cameras. In many cases, such as In some 3D video or multi-view mode applications, it is necessary to insert a black picture of a dark frame. Taking the application of the multi-angle mode of the liquid crystal display device as an example, when the angle of view mode is switched, the image quality of the liquid crystal display may display abnormally. For example, when a liquid crystal display device switches from a narrow viewing angle to a wide viewing angle, the charge in the display panel needs to be swi...

AI Technical Summary

Problems solved by technology

However, the problem with this solution is that it can only be realized by sacrificing some functions, such as: ACC (Accurate Color Calibration, accurate color correction) function; in addition, after the timing controller enters the PSR (panelSelf Refresh, self-refresh signal), it cannot be realized Forcibly inserting dark frames does not solve the above problems

Moreover, only Novatek's timing controller chip can realize the insertion of dark state frames, and the choice of solutions is greatly limited.

In addition, some products use the method of forcibly pulling down or raising the public voltage to insert black in a disguised form, but only half of the black screen can be inserted, and the overall display is a gray screen with black and white.

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