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Display screen frequency conversion method, DDIC chip, display screen module and terminal

A display and chip technology, used in static indicators, instruments, energy-saving computing, etc., can solve the problems of high power consumption and high power consumption, reduce implementation complexity and cost, avoid screen flicker, and improve screen display quality. Effect

Active Publication Date: 2021-02-05
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In some application scenarios, a high refresh rate can improve the smoothness of the picture and optimize the user experience. For example, when running a game with a high frame rate, a high refresh rate can improve the smoothness of the game picture; Using a high refresh rate will bring about the problem of high power consumption
For example, when playing a video at 30FPS, using a refresh rate of 120Hz will cause excessive power consumption

Method used

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  • Display screen frequency conversion method, DDIC chip, display screen module and terminal
  • Display screen frequency conversion method, DDIC chip, display screen module and terminal
  • Display screen frequency conversion method, DDIC chip, display screen module and terminal

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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0026] The "plurality" mentioned herein means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character " / " generally indicates that the contextual objects are an "or" relationship.

[0027] The tearing effect (Tearing Effect, TE) signal is a signal generated by the DDIC chip, which is used to prevent the tearing problem when the picture is refreshed during the image display process. When the next frame of image is ready to be refreshed, the DDIC chip generates the TE signal. Optionally, the AP sends the next frame to the...

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Abstract

The embodiment of the invention discloses a display screen frequency conversion method, a DDIC chip, a display screen module and a terminal. The method comprises the steps of outputting a TE signal toan AP according to a first basic refresh rate, and performing image scanning and frame compensation according to the first basic refresh rate; receiving a frequency reduction instruction issued by the AP, wherein the frequency reduction instruction is used for indicating to reduce the basic refresh rate of the display screen; and outputting a TE signal to the AP according to the frequency reduction instruction and a second basic refresh rate, and continuing to perform image scanning and frame compensation according to the first basic refresh rate, the second basic refresh rate being smaller than the first basic refresh rate. In the embodiment of the invention, while the AP can reduce the image drawing frequency according to the TE signal after frequency reduction, the DDIC chip can reducethe implementation complexity and cost of frequency conversion of the display screen by keeping the original scanning frequency and compensation frequency, so that the problem of picture flickering caused in the frequency conversion process is avoided, and therefore, the picture display quality in the frequency conversion process is improved.

Description

technical field [0001] The embodiments of the present application relate to the field of display technologies, and in particular to a display screen frequency conversion method, a display driver integrated circuit (Display Driver Integrated Circuit, DDIC), a display screen module, and a terminal. Background technique [0002] With the continuous development of display technology, more and more high-refresh-rate displays have emerged. When running high-frame-rate applications or during sliding operations, setting the display to a high-refresh rate mode can improve the picture quality. fluency. [0003] In some application scenarios, a high refresh rate can improve the smoothness of the picture and optimize the user experience. For example, when running a game with a high frame rate, a high refresh rate can improve the smoothness of the game picture; Adopting a high refresh rate will bring about the problem of high power consumption. For example, when playing 30FPS video, us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225Y02D10/00G09G2340/0435G09G3/2096G09G2330/021G09G2320/0247G09G5/18G09G3/32G09G2320/06
Inventor 高延凯王磊
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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