JP6827753B2 - インタフェース回路 - Google Patents
インタフェース回路 Download PDFInfo
- Publication number
- JP6827753B2 JP6827753B2 JP2016189936A JP2016189936A JP6827753B2 JP 6827753 B2 JP6827753 B2 JP 6827753B2 JP 2016189936 A JP2016189936 A JP 2016189936A JP 2016189936 A JP2016189936 A JP 2016189936A JP 6827753 B2 JP6827753 B2 JP 6827753B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- abnormality detection
- data signals
- data
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims description 236
- 230000005856 abnormality Effects 0.000 claims description 219
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G3/2096—Details of the interface to the display terminal specific for a flat panel
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/08—Details of image data interface between the display device controller and the data line driver circuit
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/14—Use of low voltage differential signaling [LVDS] for display data communication
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Description
12 走査ドライバ
13 ソースドライバ
14,24 インタフェース回路
15,25 データ制御ブロック
16,26 異常検出ブロック
20 表示デバイス
100 表示装置
131 ラッチ部
132 階調電圧変換部
133 出力部
151,251 コントロール信号入力モード検知回路
152,252 入力データ制御回路
161〜167,261〜263 異常検出回路
168,265 異常検出セレクト回路
264 NAND回路
Claims (4)
- 複数のデータ信号と前記複数のデータ信号の取込開始を示すライン開始信号とを受信し、前記複数のデータ信号をデータ受信回路に供給するインタフェース回路であって、
前記データ受信回路に発生した異常を検出する複数の異常検出回路と、
前記複数の異常検出回路のうちの1つを選択し、選択した前記異常検出回路の検出結果を出力する選択回路と、
前記ライン開始信号の受信後に前記複数のデータ信号のうちの少なくとも1つの信号レベルが所定のパターンで変化したタイミングに基づいて、前記データ信号を前記複数の異常検出回路のうちの1を選択するための選択信号として前記選択回路に供給する選択信号供給期間と、前記データ受信回路に前記データ信号の供給を行うデータ入力期間と、の切り替えのタイミングを検知し、当該切り替えのタイミングを示すタイミング信号を生成するタイミング信号生成回路と、
前記タイミング信号に基づいて、前記データ受信回路への前記データ信号の供給を制御するデータ制御回路と、
を有することを特徴とするインタフェース回路。 - 前記複数のデータ信号は、前記クロック信号のクロック周期に応じたタイミングで信号レベルが論理レベル0及び論理レベル1の間でレベル変化する第1〜第nのデータ信号(nは2以上の整数)を含み、
前記選択回路は、前記第1〜第nのデータ信号の信号レベルに応じて前記複数の異常検出回路のうちの1つを選択する
ことを特徴とする請求項1に記載のインタフェース回路。 - 前記タイミング信号生成回路は、前記第1〜第nのデータ信号のうちの少なくとも1つの信号レベルが所定のパターンで変化した場合に、前記信号レベルが変化したタイミングを前記切替のタイミングとして示す前記タイミング信号を生成する
ことを特徴とする請求項2に記載のインタフェース回路。 - 前記第1〜第nのデータ信号の否定論理積を示す否定論理積信号を生成するNAND回路をさらに有し、
前記選択回路は、前記非入力期間において、前記NAND回路を選択し、前記否定論理積信号を出力することを特徴とする請求項2又は3に記載のインタフェース回路。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016189936A JP6827753B2 (ja) | 2016-09-28 | 2016-09-28 | インタフェース回路 |
US15/717,211 US10388209B2 (en) | 2016-09-28 | 2017-09-27 | Interface circuit |
CN201710899007.5A CN107871481B (zh) | 2016-09-28 | 2017-09-28 | 接口电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016189936A JP6827753B2 (ja) | 2016-09-28 | 2016-09-28 | インタフェース回路 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021007104A Division JP6999053B2 (ja) | 2021-01-20 | 2021-01-20 | インタフェース回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018054830A JP2018054830A (ja) | 2018-04-05 |
JP6827753B2 true JP6827753B2 (ja) | 2021-02-10 |
Family
ID=61686474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016189936A Active JP6827753B2 (ja) | 2016-09-28 | 2016-09-28 | インタフェース回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10388209B2 (ja) |
JP (1) | JP6827753B2 (ja) |
CN (1) | CN107871481B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10600378B2 (en) * | 2016-03-01 | 2020-03-24 | Rohm Co., Ltd. | Liquid crystal driving device |
JP7132010B2 (ja) | 2018-07-23 | 2022-09-06 | ローム株式会社 | 異常検知回路 |
KR102614086B1 (ko) * | 2019-01-17 | 2023-12-18 | 삼성디스플레이 주식회사 | 표시 장치 및 그의 구동 방법 |
JP2022085239A (ja) | 2020-11-27 | 2022-06-08 | ラピステクノロジー株式会社 | インタフェース回路、ソースドライバ及び表示装置 |
JP2022086246A (ja) | 2020-11-30 | 2022-06-09 | ラピステクノロジー株式会社 | インタフェース回路、ソースドライバ及び表示装置 |
CN112542116A (zh) * | 2020-12-14 | 2021-03-23 | 四川长虹电器股份有限公司 | 一种tconless液晶电视显示故障快速定位的方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2648796B2 (ja) * | 1993-10-12 | 1997-09-03 | 富士通株式会社 | データ伝送異常検出方式およびデータ伝送機器 |
US5959604A (en) * | 1996-09-26 | 1999-09-28 | Rockwell International Corporation | Method and apparatus for monitoring LCD driver performance |
JP2002311881A (ja) * | 2001-04-19 | 2002-10-25 | Nichia Chem Ind Ltd | 画像表示装置 |
CN101276536B (zh) * | 2004-09-06 | 2010-04-14 | 索尼株式会社 | 图像显示单元及驱动该图像显示单元的方法 |
JP2007034344A (ja) * | 2005-07-21 | 2007-02-08 | Ricoh Co Ltd | 画像表示条件設定装置及び画像入出力装置 |
CN101610630B (zh) * | 2008-06-17 | 2012-08-22 | 尼克森微电子股份有限公司 | 荧光灯管驱动电路 |
JP2011112970A (ja) | 2009-11-27 | 2011-06-09 | Sharp Corp | ソースドライバ及び表示装置 |
JP2011150135A (ja) * | 2010-01-21 | 2011-08-04 | Denso Corp | 画像表示器 |
FR2964233B1 (fr) * | 2010-08-24 | 2012-10-05 | Thales Sa | Systeme d'emission et de reception de signaux numeriques video pour liaisons de type "lvd" |
JP6161406B2 (ja) * | 2013-05-23 | 2017-07-12 | 三菱電機株式会社 | 表示装置 |
KR102104332B1 (ko) * | 2013-07-16 | 2020-04-27 | 삼성디스플레이 주식회사 | 게이트 구동부의 에러 검출 장치 및 이를 포함하는 표시 장치 및 이를 이용한 게이트 구동부의 에러 검출 방법 |
JP2015090461A (ja) * | 2013-11-07 | 2015-05-11 | 三菱電機株式会社 | 映像装置 |
JP6325263B2 (ja) * | 2014-01-31 | 2018-05-16 | ローム株式会社 | 画像データの受信回路およびそれを用いた電子機器、画像データの伝送方法 |
US9428073B2 (en) * | 2014-02-21 | 2016-08-30 | GM Global Technology Operations LLC | System and method of monitoring a performance level of a battery |
KR102236128B1 (ko) * | 2014-12-31 | 2021-04-05 | 엘지디스플레이 주식회사 | 액정 표시 장치 및 이를 구비한 디스플레이 시스템 |
-
2016
- 2016-09-28 JP JP2016189936A patent/JP6827753B2/ja active Active
-
2017
- 2017-09-27 US US15/717,211 patent/US10388209B2/en active Active
- 2017-09-28 CN CN201710899007.5A patent/CN107871481B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20180090056A1 (en) | 2018-03-29 |
US10388209B2 (en) | 2019-08-20 |
JP2018054830A (ja) | 2018-04-05 |
CN107871481B (zh) | 2021-05-07 |
CN107871481A (zh) | 2018-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6827753B2 (ja) | インタフェース回路 | |
US9542902B2 (en) | Display device driver | |
JP4678755B2 (ja) | 液晶表示装置,ソースドライバ,及びソースドライバ動作方法 | |
US10074339B2 (en) | Receiver circuit and operating method of the same | |
CN102081914B (zh) | 显示设备和驱动方法 | |
US20150221274A1 (en) | Display driver | |
US9361832B2 (en) | Display device and scanning line driver | |
US11990103B2 (en) | Interface circuit, source driver, and display device | |
KR20160091518A (ko) | 표시장치 | |
KR102545234B1 (ko) | 표시 장치 | |
JP6130239B2 (ja) | 半導体装置、表示装置、及び信号取込方法 | |
JP6999053B2 (ja) | インタフェース回路 | |
KR20190012053A (ko) | 전계발광표시장치 및 이의 구동방법 | |
JP6465583B2 (ja) | タイミングコントローラおよびそれを用いたディスプレイ装置 | |
US10134347B2 (en) | Display driver and display apparatus | |
JP2022023448A (ja) | 表示ドライバ及び表示装置 | |
JP2008275964A (ja) | 映像表示装置 | |
JP6312101B2 (ja) | 半導体デバイスおよび表示装置 | |
JP2022085239A (ja) | インタフェース回路、ソースドライバ及び表示装置 | |
JP2007057637A (ja) | 表示パネルの駆動装置および駆動方法 | |
JP7232739B2 (ja) | 表示ドライバ、表示装置及び半導体装置 | |
KR20190075426A (ko) | 표시장치 및 그의 구동방법 | |
JP2018182542A (ja) | 入力データ制御装置、表示装置、及び信号取込方法 | |
JP2011158660A (ja) | 表示システム、入出力装置、および表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190702 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200630 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200714 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200911 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20201222 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210120 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6827753 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |