Digital-analog converter, data driving circuit having the same, and display device having the same

A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp i...

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Bibliographic Details
Main Authors Ma, Hyung Gun, Lee, Seong Joo, Song, Jun Yong, Heo, Sang Hyun, Kim, Ji Woong, Kwon, Oh Jo
Format Patent
LanguageEnglish
Published 15.11.2022
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
CRYPTOGRAPHY
DECODING
DISPLAY
EDUCATION
ELECTRICITY
PHYSICS
SEALS
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Summary:A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp including a plurality of gamma decoders which generates a plurality of global gamma voltages based on the gamma reference voltages; a decoder which selects one of the global gamma voltages according to the digital image data to generate the analog data signals; and a ramp controller which turns off at least some of the gamma decoders based on the digital image data.
Bibliography:Application Number: US202117166482