Method for eliminating deficient image on liquid crystal display

A method for eliminating deficient image on a liquid crystal display (LCD) is provided. The method is used for eliminating the deficient image generated during the shutdown period in a normally white LCD. The method comprises the following steps. First, when a power indication signal changes from a...

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Bibliographic Details
Main Authors LIU YI-TE, WANG WEIIH
Format Patent
LanguageEnglish
Published 29.12.2009
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 method for eliminating deficient image on a liquid crystal display (LCD) is provided. The method is used for eliminating the deficient image generated during the shutdown period in a normally white LCD. The method comprises the following steps. First, when a power indication signal changes from a first state to a second state, a black frame is displayed in a first period of time. At the end of the first period, a white frame is displayed in a second period of time. At the end of the second period, the supply of a negative scan voltage is stopped and a white frame is displayed in a third period of time. At the end of the third period, the power is turned off.
Bibliography:Application Number: US20050302028