A kind of driving circuit of display panel and its driving method
A technology for display panels and driving circuits, applied in static indicators, instruments, etc., can solve the problems of abnormal operation, the display panel cannot obtain the gamma common voltage, and the display effect is reduced, so as to avoid interference and improve the display effect.
Active Publication Date: 2021-09-03
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0004] However, after power-on, the timing control chip 10 itself will reset to configure the pins; because the timing control chip 10 will output an uncertain signal to the gamma chip 20 at this time, and store it in the storage module 22, thereby disturbing the gamma signal. The horse chip makes it work abnormally, making the display panel unable to obtain the best gamma (gamma) and common voltage (VCOM) parameters, reducing the display effect
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[0027] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar units are denoted by the same reference numerals.
[0028] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion.
[0029] Please refer to...
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The present invention provides a driving circuit of a display panel and a driving method thereof. The driving circuit includes: a timing control chip for obtaining debugging data; a gamma chip including an opening control module and a logic control module, and the opening control module and The timing control chip is connected, and the opening control module is used to control the opening or closing of the logic control module according to the enable signal output by the timing control chip; when the timing control chip is in an initialization state, the opening The control module controls the logic control module to turn off; when the timing control chip is in a state after initialization, the opening control module controls the logic control module to turn on, so that the logic control module receives the timing control chip Provided debug data. The driving circuit and driving method of the display panel of the present invention can improve the display effect.
Description
【Technical field】 [0001] The present invention relates to the field of display technology, in particular to a driving circuit of a display panel and a driving method thereof. 【Background technique】 [0002] In order to improve the display effect, it is often necessary to automatically adjust the gamma curve and common voltage (VCOM) of the display panel before leaving the factory (auto Pgamma), so that each display panel is close to the standard gamma curve and the best flicker parameters, and The debugging data is stored in the memory of the source driver chip of the display panel, and then assembled with the driver circuit. [0003] Such as figure 1 As shown, due to cost factors, the input and output ports (I / O) of the timing control chip 10 in the drive circuit often multiplex more functions. When power-on (power on), the timing control chip 10 obtains the memory and write the debugging data into the gamma chip 20. The timing control chip 10 and the gamma chip 20 commu...
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IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0673
Inventor 肖波
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD