Backlight driving method

US8279161B2 · kind B2 · utility

Assignee

• Au Optronics Corporation · TW

Inventors

• Ya-Ting Hsu · Hsinchu, TW
• Fang-Cheng Lin · Zhuolan Township, TW
• Yi-Pai Huang · Zhubeikou, TW
• Han-Ping Shieh · Hsinchu, TW
• Chien-Hung Chen · Taipei, TW
• Chi-Mao Hung · Hsinchu, TW

Key dates

• Filing date: Jun 26, 2008
• Grant date: Oct 2, 2012
• Expiry date: Sep 2, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G2320/0247
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A backlight driving method, which provides three kinds of light sources comprising a red light source, a blue light source, and a green light source. The driving method includes dividing a frame into four sub-frames, and lighting the green light sources twice during two sub-frames respectively, dividing the first frame and the second frame into four sub-frames respectively, lighting the four light sources in the four sub-frames in a first lighting order during the first frame, and lighting the four light sources in the four sub-frames using a second lighting order during the second frame, wherein the first order is different from the second order.