TW200710777A - Chrominance control circuit of multi-color light source backlight module and light detection element thereof - Google Patents

Chrominance control circuit of multi-color light source backlight module and light detection element thereof

Info

Publication number
TW200710777A
TW200710777A TW094130905A TW94130905A TW200710777A TW 200710777 A TW200710777 A TW 200710777A TW 094130905 A TW094130905 A TW 094130905A TW 94130905 A TW94130905 A TW 94130905A TW 200710777 A TW200710777 A TW 200710777A
Authority
TW
Taiwan
Prior art keywords
light source
backlight module
control circuit
color filter
light
Prior art date
Application number
TW094130905A
Other languages
Chinese (zh)
Other versions
TWI288379B (en
Inventor
Wei-Hsiun Chen
Original Assignee
Radiant Opto Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Radiant Opto Electronics Corp filed Critical Radiant Opto Electronics Corp
Priority to TW94130905A priority Critical patent/TWI288379B/en
Publication of TW200710777A publication Critical patent/TW200710777A/en
Application granted granted Critical
Publication of TWI288379B publication Critical patent/TWI288379B/en

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  • Spectrometry And Color Measurement (AREA)

Abstract

This invention relates a kind of chrominance control circuit of a backlight module having a multi-color light source and a light detection element thereof. A mono-color filter film is installed onto a light incident position of a light detector in a backlight module. The mono-color filter film is used to detect intensity of specific wavelength lights in the white light source of the backlight module to reflect and determine the intensity of the backlight light source that really penetrates the color filter of a liquid crystal panel, so that spectrum characteristics of the light source of the backlight module detected by the light detector is the same as that of the light source passing through the color filter detected by the light detector. A chrominance control circuit is further used to adjust spectrum characteristics of the backlight module light source so that the chrominance variation of the backlight light source emitted and passing through the liquid crystal panel is reduced to a lowest level.
TW94130905A 2005-09-08 2005-09-08 Chrominance control circuit of multi-color light source backlight module and light detection element thereof TWI288379B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94130905A TWI288379B (en) 2005-09-08 2005-09-08 Chrominance control circuit of multi-color light source backlight module and light detection element thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94130905A TWI288379B (en) 2005-09-08 2005-09-08 Chrominance control circuit of multi-color light source backlight module and light detection element thereof

Publications (2)

Publication Number Publication Date
TW200710777A true TW200710777A (en) 2007-03-16
TWI288379B TWI288379B (en) 2007-10-11

Family

ID=39203010

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94130905A TWI288379B (en) 2005-09-08 2005-09-08 Chrominance control circuit of multi-color light source backlight module and light detection element thereof

Country Status (1)

Country Link
TW (1) TWI288379B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI740567B (en) * 2020-07-07 2021-09-21 佳世達科技股份有限公司 Display apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI740567B (en) * 2020-07-07 2021-09-21 佳世達科技股份有限公司 Display apparatus

Also Published As

Publication number Publication date
TWI288379B (en) 2007-10-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees