JP2006047315A - Lcd駆動用ic内のデジタル/アナログ変換器のテスト装置 - Google Patents
Lcd駆動用ic内のデジタル/アナログ変換器のテスト装置 Download PDFInfo
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- JP2006047315A JP2006047315A JP2005227406A JP2005227406A JP2006047315A JP 2006047315 A JP2006047315 A JP 2006047315A JP 2005227406 A JP2005227406 A JP 2005227406A JP 2005227406 A JP2005227406 A JP 2005227406A JP 2006047315 A JP2006047315 A JP 2006047315A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/10—Calibration or testing
- H03M1/1071—Measuring or testing
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
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- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Tests Of Electronic Circuits (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
【解決手段】相互に異なる複数のアナログ信号を出力するガンマレファレンス部(342)と、相互に異なる複数のデジタル信号を出力するレジスタ部(500)と、印加されるデジタルコード信号によって制御され、ガンマレファレンス部(342)あるいはレジスタ部(500)から出力される複数の信号のうち、いずれか1つを選択して出力するデコーダ(344a)と、とレジスタ部(500)からテストモード信号が入力されたか否かに応じて、デコーダ(344a)及びレジスタ部(500)を断続するスイッチング部(600)とを備える。
【選択図】図6
Description
344a デコーダ
500 レジスタ
600 スイッチング部
Claims (6)
- 相互に異なる複数のアナログ信号を出力するガンマレファレンス部と、
相互に異なる複数のデジタル信号を出力するレジスタ部と、
印加されるデジタルコード信号によって制御され、前記ガンマレファレンス部あるいは前記レジスタ部から出力される複数の信号のうち、いずれか1つを選択して出力するデコーダと、
前記レジスタ部からテストモード信号が入力されたか否かに応じて、前記デコーダ及びレジスタ部を断続するスイッチング部と
を備えることを特徴とするLCD駆動用IC内のデジタル/アナログ変換器のテスト装置。 - 前記レジスタ部が、シフトレジスタであることを特徴とする請求項1に記載のLCD駆動用IC内のデジタル/アナログ変換器のテスト装置。
- 前記レジスタ部が、通常のレジスタであることを特徴とする請求項1に記載のLCD駆動用IC内のデジタル/アナログ変換器のテスト装置。
- 前記レジスタ部が、ラッチであることを特徴とする請求項1に記載のLCD駆動用IC内のデジタル/アナログ変換器のテスト装置。
- 前記レジスタ部が、SRAMであることを特徴とする請求項1に記載のLCD駆動用IC内のデジタル/アナログ変換器のテスト装置。
- 前記ガンマレファレンス部が、複数の抵抗が直列接続された抵抗列であることを特徴とする請求項2〜請求項5のいずれか一項に記載のLCD駆動用IC内のデジタル/アナログ変換器のテスト装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040061573A KR100671698B1 (ko) | 2004-08-05 | 2004-08-05 | 엘디아이 내 디지털 아날로그 변환기의 테스트 장치 |
KR10-2004-0061573 | 2004-08-05 |
Publications (2)
Publication Number | Publication Date |
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JP2006047315A true JP2006047315A (ja) | 2006-02-16 |
JP4812361B2 JP4812361B2 (ja) | 2011-11-09 |
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JP2005227406A Active JP4812361B2 (ja) | 2004-08-05 | 2005-08-05 | Lcd駆動用ic内のデジタル/アナログ変換器のテスト装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7167117B2 (ja) |
JP (1) | JP4812361B2 (ja) |
KR (1) | KR100671698B1 (ja) |
TW (1) | TWI321301B (ja) |
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US7324031B1 (en) * | 2006-02-15 | 2008-01-29 | Altera Corporation | Dynamic bias circuit |
KR100714612B1 (ko) * | 2006-02-22 | 2007-05-07 | 삼성전기주식회사 | 고분해능을 갖는 디지털/아날로그 컨버팅 장치 |
JP2010171627A (ja) * | 2009-01-21 | 2010-08-05 | Sony Corp | 半導体集積回路、液晶駆動回路及び液晶表示装置 |
TWI506607B (zh) * | 2011-04-14 | 2015-11-01 | Novatek Microelectronics Corp | 顯示面板的控制驅動器 |
US8842105B2 (en) | 2011-04-14 | 2014-09-23 | Novatek Microelectronics Corp. | Controller driver for driving display panel |
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US8779953B1 (en) | 2013-07-31 | 2014-07-15 | Google Inc. | Fast test of digital-to-analog converters |
KR101603307B1 (ko) * | 2014-09-05 | 2016-03-15 | 엘지디스플레이 주식회사 | 디지털아날로그 변환부 및 이를 이용한 데이터 구동부 |
CN104469346B (zh) * | 2014-11-28 | 2017-02-22 | 青岛海信电器股份有限公司 | 一种信号输出电路及装置 |
CN105761692B (zh) * | 2016-05-04 | 2018-08-14 | 深圳市华星光电技术有限公司 | 用于在线调整液晶面板的伽马编码的系统 |
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- 2004-08-05 KR KR1020040061573A patent/KR100671698B1/ko active IP Right Grant
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- 2005-08-04 US US11/198,597 patent/US7167117B2/en active Active
- 2005-08-05 JP JP2005227406A patent/JP4812361B2/ja active Active
- 2005-08-08 TW TW094126823A patent/TWI321301B/zh active
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JP2002236147A (ja) * | 2001-02-07 | 2002-08-23 | Sharp Corp | 半導体集積回路及びその検査方法 |
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Publication number | Publication date |
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US20060055572A1 (en) | 2006-03-16 |
KR20060012870A (ko) | 2006-02-09 |
US7167117B2 (en) | 2007-01-23 |
KR100671698B1 (ko) | 2007-01-18 |
JP4812361B2 (ja) | 2011-11-09 |
TWI321301B (en) | 2010-03-01 |
TW200617838A (en) | 2006-06-01 |
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