WO2023077410 - METHOD AND APPARATUS FOR GENERATING DRIVING SIGNAL, BACKLIGHT, AND DISPLAY APPARATUS
National phase entry:
Publication Number
WO/2023/077410
Publication Date
11.05.2023
International Application No.
PCT/CN2021/128939
International Filing Date
05.11.2021
Title **
[English]
METHOD AND APPARATUS FOR GENERATING DRIVING SIGNAL, BACKLIGHT, AND DISPLAY APPARATUS
[French]
PROCÉDÉ ET APPAREIL DE GÉNÉRATION DE SIGNAL D'ATTAQUE, DISPOSITIF DE RÉTROÉCLAIRAGE ET APPAREIL D'AFFICHAGE
Applicants **
BOE TECHNOLOGY GROUP CO., LTD.
No.10 Jiuxianqiao Rd., Chaoyang District
Beijing 100015, CN
BOE MLED TECHNOLOGY CO., LTD.
No.8 Xihuanzhong RD., BDA
Beijing 100176, CN
Inventors
HAO, Wei
No.9 Dize Rd., BDA
Beijing 100176, CN
HUNG, Chinghua
No.9 Dize Rd., BDA
Beijing 100176, CN
SHI, Lingyun
No.9 Dize Rd., BDA
Beijing 100176, CN
WANG, Feifei
No.9 Dize Rd., BDA
Beijing 100176, CN
SU, Wengang
No.9 Dize Rd., BDA
Beijing 100176, CN
SHANG, Xingce
No.9 Dize Rd., BDA
Beijing 100176, CN
YIN, Kaimin
No.9 Dize Rd., BDA
Beijing 100176, CN
ZHANG, Junwei
No.9 Dize Rd., BDA
Beijing 100176, CN
DUAN, Taotao
No.9 Dize Rd., BDA
Beijing 100176, CN
Application details
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International Searching Authority |
CNIPA
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1353 | |
| EPO | Filing, Examination | 8412 | |
| Japan | Filing | 588 | |
| South Korea | Filing | 482 | |
| USA | Filing, Examination | 2710 |
Total: 13545 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A method for generating driving signal includes generating, by a first circuit (C1), a first driving signal (DSn) for a first frame of image (Fn), the first driving signal (DSn) comprising a plurality of first pulse width modulation signals (PWMn); transmitting the plurality of first pulse width modulation signals (PWMn) to a modulation controller; detecting a vertical synchronization signal (Vsync); determining whether a most recent first pulse width modulation signal (tmrpn) is partially generated when the vertical synchronization signal (Vsync) is detected; and upon determination that the most recent first pulse width modulation signal (tmrpn) is partially generated, determining whether to delay generating a second driving signal (DSn+1) for a second frame of image (Fn+1).[French]
Un procédé de génération de signal d'attaque consiste à générer, par un premier circuit (C1), un premier signal d'attaque (DSn) pour une première trame d'image (Fn), le premier signal d'attaque (DSn) comprenant une pluralité de premiers signaux de modulation de largeur d'impulsion (PWMn) ; à transmettre la pluralité de premiers signaux de modulation de largeur d'impulsion (PWMn) à un contrôleur de modulation ; à détecter un signal de synchronisation verticale (Vsync) ; à déterminer si un premier signal de modulation de largeur d'impulsion le plus récent (tmrpn) est partiellement généré lorsque le signal de synchronisation verticale (Vsync) est détecté ; et lorsqu'il est déterminé que le premier signal de modulation de largeur d'impulsion le plus récent (tmrpn) est partiellement généré, à déterminer s'il faut retarder la génération d'un second signal d'attaque (DSn +1) pour une seconde trame d'image (Fn +1).