TW200625258A - Dynamic gamma correction circuit and display device with the same - Google Patents

Dynamic gamma correction circuit and display device with the same

Info

Publication number
TW200625258A
TW200625258A TW094100983A TW94100983A TW200625258A TW 200625258 A TW200625258 A TW 200625258A TW 094100983 A TW094100983 A TW 094100983A TW 94100983 A TW94100983 A TW 94100983A TW 200625258 A TW200625258 A TW 200625258A
Authority
TW
Taiwan
Prior art keywords
reference voltage
correction circuit
gamma correction
dynamic gamma
receive
Prior art date
Application number
TW094100983A
Other languages
Chinese (zh)
Other versions
TWI307076B (en
Inventor
fang-xing Wang
min-quan Wang
Original Assignee
Univ Nat Chunghsing
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 Univ Nat Chunghsing filed Critical Univ Nat Chunghsing
Priority to TW094100983A priority Critical patent/TW200625258A/en
Publication of TW200625258A publication Critical patent/TW200625258A/en
Application granted granted Critical
Publication of TWI307076B publication Critical patent/TWI307076B/zh

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Landscapes

  • Transforming Electric Information Into Light Information (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Picture Signal Circuits (AREA)

Abstract

A display device containing a dynamic gamma correction circuit comprises a liquid crystal display, an analyzer, a gamma reference voltage generator, a dynamic gamma correction circuit, and an A/D converter. The gamma reference voltage generator can generate a set of constant reference voltage, the analyzer can receive an image information and compile statistics for the grey level distribution of the image and send a set of control signals according to the analytical results, the dynamic gamma correction circuit can receive the constant reference voltage and generate a set of modulated reference voltage by adjusting the voltage value of the constant reference voltage according to the control signals, and the A/D converter can receive the modulated reference voltage, convert the image information into analog type grey level voltage according to the voltage difference of modulated reference voltage values and transmit the grey level voltage signal to the liquid crystal display.
TW094100983A 2005-01-13 2005-01-13 Dynamic gamma correction circuit and display device with the same TW200625258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW094100983A TW200625258A (en) 2005-01-13 2005-01-13 Dynamic gamma correction circuit and display device with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094100983A TW200625258A (en) 2005-01-13 2005-01-13 Dynamic gamma correction circuit and display device with the same

Publications (2)

Publication Number Publication Date
TW200625258A true TW200625258A (en) 2006-07-16
TWI307076B TWI307076B (en) 2009-03-01

Family

ID=45071534

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094100983A TW200625258A (en) 2005-01-13 2005-01-13 Dynamic gamma correction circuit and display device with the same

Country Status (1)

Country Link
TW (1) TW200625258A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI596586B (en) * 2012-03-26 2017-08-21 三星顯示器有限公司 Display device, apparatus for generating gamma voltage, and method for the same
CN111028763A (en) * 2020-01-02 2020-04-17 昆山国显光电有限公司 Gamma reference voltage adjusting method, adjusting circuit and display panel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112071281A (en) * 2020-09-22 2020-12-11 禹创半导体(深圳)有限公司 Dynamic gamma adjusting circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI596586B (en) * 2012-03-26 2017-08-21 三星顯示器有限公司 Display device, apparatus for generating gamma voltage, and method for the same
CN111028763A (en) * 2020-01-02 2020-04-17 昆山国显光电有限公司 Gamma reference voltage adjusting method, adjusting circuit and display panel

Also Published As

Publication number Publication date
TWI307076B (en) 2009-03-01

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Legal Events

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