BACKLIGHT CONTROL CIRCUIT

A backlight control circuit (30) for driving a surface light-emitting device (20) is provided. The backlight control circuit (30) includes a driving circuit (306). The driving circuit is (306) configured to generate a plurality of driving currents to drive the surface light-emitting device (20) such...

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Bibliographic Details
Main Authors WANG, Li-Fei, FANG, Sheng-Kai, HSIEH, Yu-Lin, KAO, Pei-Ling
Format Patent
LanguageEnglish
French
German
Published 05.06.2024
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Summary:A backlight control circuit (30) for driving a surface light-emitting device (20) is provided. The backlight control circuit (30) includes a driving circuit (306). The driving circuit is (306) configured to generate a plurality of driving currents to drive the surface light-emitting device (20) such that a plurality of backlight zones of the surface light-emitting device (20) generate a plurality of brightness values. Each backlight zone includes at least one light source (208) for emitting light. The surface light-emitting device (20) is divided into at least a first backlight area and a second backlight area. The second backlight area is closer to an edge of the surface light-emitting device (20) than the first backlight area. A first driving current of the plurality of driving currents is utilized for driving the light source (208) of the first backlight area. A second driving current of the plurality of driving currents is utilized for driving the light source (208) of the second backlight area. The second driving current is greater than the first driving current.
Bibliography:Application Number: EP20220863418