Title:
データ駆動回路、これを利用した発光表示装置、及びその駆動方法
Document Type and Number:
Japanese Patent JP4790486
Kind Code:
B2
Abstract:
A data driving circuit for a light emitting display may include a gamma voltage generator that generates gradation voltages, a current sink that receives a predetermined current from a pixel via a data line during a first partial period of one complete period for driving the pixel, a voltage generator that generates an incrementally increasing compare voltage during the first partial period, a comparator that compares a compensation voltage generated based on the predetermined current with the compare voltage and generates a logic signal based on a result of the compare, an adjusting unit that generates compensation data based on the logic signal, and a digital-analog converter that generates a composite data using the compensation data and externally supplied data and selects, as a data signal for the pixel, one of the plurality of gradation voltages based on a bit value of the composite data.
Inventors:
Chung
Michiru Yanagi
Money
Satoru Go Kei
Michiru Yanagi
Money
Satoru Go Kei
Application Number:
JP2006130863A
Publication Date:
October 12, 2011
Filing Date:
May 09, 2006
Export Citation:
Assignee:
Samsung Mobile Display Co., Ltd.
International Classes:
G09G3/30; G09G3/20; H01L51/50; H05B44/00
Domestic Patent References:
| JP2007519956A | ||||
| JP2008504576A | ||||
| JP2004004675A | ||||
| JP2003058106A | ||||
| JP2004192000A | ||||
| JP2007536585A | ||||
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| JP2004287345A | ||||
| JP2003295828A | ||||
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| JP2002311898A | ||||
| JP10254410A |
Attorney, Agent or Firm:
Hatta International Patent Corporation
Mikio Hatta
Yasuo Nara
Katsuyuki Utani
Mikio Hatta
Yasuo Nara
Katsuyuki Utani