Title:
DISPLAY SCREEN FREQUENCY CONVERSION METHOD, DDIC CHIP, DISPLAY SCREEN MODULE, AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/143676
Kind Code:
A1
Abstract:
A display screen (1132) frequency conversion method, a DDIC chip (1131), a display screen module (1130), and a terminal (1100). The method comprises: initializing a display screen parameter according to a first refresh frequency (401); upon the receipt of first image data sent from an AP, performing image scanning according to the first refresh frequency (402); if second image data sent from the AP is not received within a preset delay duration of a vertical front porch (VFP) corresponding to the first refresh frequency, adjusting the first refresh frequency to a second refresh frequency, the second refresh frequency being lower than the first refresh frequency (403); and adjusting the display screen parameter according to the second refresh frequency (404). The DDIC chip (1131) adaptively adjusts the refresh frequency of the display screen (1132) according to the speed of image data transmission by the AP, so as to achieve the adaptive dynamic frequency conversion of the display screen (1132), thereby reducing the power consumed by the display screen (1132).
Inventors:
YANG LE (CN)
CUI ZHIJIA (CN)
CUI ZHIJIA (CN)
Application Number:
PCT/CN2021/071286
Publication Date:
July 22, 2021
Filing Date:
January 12, 2021
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
G09G3/3225
Foreign References:
| CN111968582A | 2020-11-20 | |||
| CN105760132A | 2016-07-13 | |||
| CN106933526A | 2017-07-07 | |||
| CN108922466A | 2018-11-30 | |||
| CN109272931A | 2019-01-25 | |||
| CN110675824A | 2020-01-10 | |||
| JPH08248925A | 1996-09-27 | |||
| CN202010039097A | 2020-01-14 |
Other References:
See also references of EP 4089666A4
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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