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Video signal adjustment device and adjustment method

A technology of video signal and gear signal, applied in the field of signal processing, to achieve the effect of optimizing display effect, improving poor signal matching, flickering phenomenon, and improving efficiency

Active Publication Date: 2020-10-30
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of the existing methods, the present invention proposes a video signal adjustment video signal adjustment device and adjustment method to reduce the attenuation of the video signal in the prior art during transmission

Method used

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  • Video signal adjustment device and adjustment method
  • Video signal adjustment device and adjustment method

Examples

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Effect test

Embodiment 1

[0056] In order to solve the flickering problem caused by signal attenuation, Embodiment 1 of the present invention provides a video signal adjustment device. The schematic diagram of the device is shown in figure 1 As shown, it includes: a first sampling circuit 100 , a gear controller 200 , at least one gear circuit 300 , a comparison circuit 400 , a switch controller 500 and at least one switch circuit 600 .

[0057] The first sampling circuit 100 is electrically connected to the gear controller 200; the gear controller 200 is electrically connected to at least one gear circuit 300; at least one gear circuit 300 is connected to the comparison circuit 400, and is electrically connected to at least one switch circuit 600 respectively. Connection; the comparison circuit 400 is electrically connected to the switch controller 500 ; the switch controller 500 is electrically connected to at least one switch circuit 600 .

[0058] The working principle of the video signal adjustme...

Embodiment 2

[0096] Corresponding to Embodiment 1, Embodiment 2 of the present invention provides a method for adjusting a video signal. The flow chart of the method is shown in Figure 4 shown, including:

[0097] S1. Acquire a first video signal at a first sampling point.

[0098] The first sampling point is a sampling point at the output end of the driving circuit, which can be represented by TP4; the acquired first video signal Vtp4_od is the video signal output by the driving circuit.

[0099] S2. Perform at least one gear adjustment on the first video signal to generate at least one corresponding gear signal.

[0100] In a preferred embodiment, five gear adjustments are performed on the first video signal, and the five gear circuits 300 involved are respectively the first pre-emphasis gear, pre-emphasis and swing (Swing) gear , the first swing gear, the second pre-emphasis gear and the second swing gear. Depending on user requirements, any one of the five gear circuits 300 may be...

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Abstract

An embodiment of the present invention provides a video signal adjustment device and adjustment method, the device includes: a first sampling circuit, a gear controller, at least one gear circuit, a comparison circuit, a switch controller and at least one switch circuit; The first sampling circuit is electrically connected to the gear controller; the gear controller is electrically connected to the at least one gear circuit; the at least one gear circuit is connected to the comparison circuit, and is respectively connected to the The at least one switch circuit is electrically connected; the comparison circuit is electrically connected to the switch controller; the switch controller is electrically connected to the at least one switch circuit. The method can reduce the attenuation of the video signal in the transmission process in the prior art.

Description

technical field [0001] The present invention relates to the technical field of signal processing, in particular, the present invention relates to a video signal adjustment device and an adjustment method. Background technique [0002] In an existing display device, a video signal is transmitted between a driving circuit and a display screen through a video signal interface, such as an embedded video signal interface EDP (Embedded DisplayPot). The matching between the video signal output by the drive circuit and the video signal received by the display screen is very important to the display effect. When the attenuation exceeds a certain standard, if the video signal output by the drive circuit matches the video signal received by the display screen Poor, there will be undesirable phenomenon of splash screen, affecting product quality. [0003] In actual use, when the video signal of the driving circuit is transmitted to the display screen, the video signal often has differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/14
CPCH04N5/14G09G5/00G09G2330/12G09G5/006G09G2310/0245G09G2320/0247H04N17/045
Inventor 闵泰烨张智唐秀珠陈帅唐滔良田振国梁雪波胡双熊丽军董兴
Owner BOE TECH GRP CO LTD
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