A signal processing method and device in a display panel
A display panel and processing method technology, applied to static indicators, instruments, etc., can solve problems such as reduced display effect, signal distortion, and increased transmission rate
Active Publication Date: 2021-07-06
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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[0003] However, when the size of the panel increases, more source driver chips are required, and the circuit board connected to the source driver chip is longer, and the circuit board is connected to the control board (set with a timing control chip (Tcon)), and Tcon sends data to For each source driver chip, the source driver chip located at the far end has a longer transmission distance; when the resolution increases, the amount of transmitted data also increases, so that the transmission rate (data rate) of the source driver IC (Driver IC) also increases. Increase
However, the signal with high transmission rate is prone to signal distortion during long-distance transmission, which reduces the display effect
Method used
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[0029] 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.
[0030] Such as figure 1 As shown, the existing timing control chip 10 is used to provide video signals to the source driver chip 20; the source driver chip 20 is used to provide data signals to the display panel. There is a data transmission channel DA' and a connection confirmation channel LS' between the timing control chip and the source driver chip.
[0031] Th...
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The present invention provides a signal processing method and device in a display panel. The method includes: adjusting test data by using each preset optimization coefficient according to a preset adjustment command to obtain a plurality of adjustment data; Bit rate, to obtain multiple initial bit error rates; select one of the initial bit error rates as the feedback bit error rate among the multiple initial bit error rates; when the bit error rate exceeds the preset range, adjust the current Pre-emphasize the coefficient, and return to execute the step of adjusting the test data by using each preset optimization coefficient according to the preset adjustment instruction when the test data is obtained; when the feedback bit error rate is within the preset range , the current pre-emphasis coefficient is used as the target pre-emphasis coefficient, and the video signal is compensated according to the target pre-emphasis coefficient. The signal processing method and device in the display panel of the present invention can avoid signal distortion.
Description
【Technical field】 [0001] The invention relates to the field of display technology, in particular to a signal processing method and device in a display panel. 【Background technique】 [0002] As the size of the display panel increases, large-size display products such as 65 inches, 75 inches, and even 85 inches are increasingly popular in the market. While the size is increasing, the resolution of the panel is also increasing, such as from HD to FHD, FHD to UD, and then to 8K. [0003] However, when the size of the panel increases, more source driver chips are required, and the circuit board connected to the source driver chip is longer, and the circuit board is connected to the control board (set with a timing control chip (Tcon)), and Tcon sends data to For each source driver chip, the source driver chip located at the far end has a longer transmission distance; when the resolution increases, the amount of transmitted data also increases, so that the transmission rate (data...
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IPC IPC(8): G09G3/00G09G3/20
CPCG09G3/006G09G3/20
Inventor 徐枫程曹丹周明忠
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD