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Method and device for eliminating water ripples on display panel, and display device

A technology for display panels and display devices, applied in static indicators, instruments, etc., can solve problems such as water ripples on display panels, and achieve the effect of eliminating the phenomenon of water ripples

Active Publication Date: 2022-06-03
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a method for eliminating water ripples on a display panel, an eliminating device, and a display device, which can solve the undesirable phenomenon of water ripples on the display panel caused by the spread spectrum technology in the prior art

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  • Method and device for eliminating water ripples on display panel, and display device
  • Method and device for eliminating water ripples on display panel, and display device
  • Method and device for eliminating water ripples on display panel, and display device

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

[0037] Please refer to figure 1 , which is a schematic diagram of the original spread spectrum spectrum provided by the embodiment of the present invention. like figure 1 As shown, all timings applied to the display panel are generated by the reference frequency DE of the panel driver board Tcon, including GOA signal frequency (STV / CLK, etc.), Sout (serial output), spr...

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Abstract

The present invention provides a method for eliminating water ripples on a display panel, an eliminating device, and a display device. The eliminating method includes: obtaining the modulation frequency and modulation amplitude of the spread spectrum, and calculating the modulation period T of the spread spectrum according to the modulation frequency of the spread spectrum; Discretize the modulation amplitude within one modulation cycle of the spread spectrum to obtain N discretized modulation amplitude values, wherein the N is a positive integer; in the case of receiving the frame start signal, generate N different addresses, randomly assigning the N addresses as storage addresses of the N discretized modulation amplitude values; sequentially reading and outputting the discretized modulation amplitude values ​​in the order of the N addresses. According to the elimination method of the embodiment of the present invention, while meeting the electromagnetic interference requirements of the display device, by discretizing the modulation amplitude and converting it into a disordered spread spectrum amplitude for output, the Jitter value of the pixel charging rate can be changed randomly, thereby eliminating The water ripple phenomenon of the display panel.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method for eliminating water ripples on a display panel, a device for eliminating water ripples, and a display device. Background technique [0002] With the development of technology in the display industry, large size and high resolution have gradually become the standard configuration of displays. However, due to the large size and high resolution of the display panel, the charging time of a single pixel is very short (under the condition of 60Hz, the charging time of 4K products is less than 7.4μs, and the charging time of 8K products is less than 3.7μs), so the charging rate is seriously insufficient. [0003] At the same time, due to the electromagnetic interference requirements of the client, the electromagnetic interference of the panel should not be too large, so the concept of spread spectrum is introduced, even if the square wave such as CLK / Sout shakes back...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36
Inventor 王会明汪敏马京赵鹏杨秀琴
Owner BOE TECH GRP CO LTD
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