JP4195476B2 - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
- Publication number
- JP4195476B2 JP4195476B2 JP2006165271A JP2006165271A JP4195476B2 JP 4195476 B2 JP4195476 B2 JP 4195476B2 JP 2006165271 A JP2006165271 A JP 2006165271A JP 2006165271 A JP2006165271 A JP 2006165271A JP 4195476 B2 JP4195476 B2 JP 4195476B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- half pulse
- transition voltage
- crystal display
- ratio
- 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.)
- Expired - Fee Related
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3651—Control of matrices with row and column drivers using an active matrix using multistable liquid crystals, e.g. ferroelectric 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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0469—Details of the physics of pixel operation
- G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
- G09G2300/0491—Use of a bi-refringent liquid crystal, optically controlled bi-refringence [OCB] with bend and splay states, or electrically controlled bi-refringence [ECB] for controlling the color
-
- 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
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
-
- 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
- G09G2310/06—Details of flat display driving waveforms
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/041—Temperature compensation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
社団法人電気通信学会 信学技報 EDI98−144 199頁
12 アレイ基板
14 対向基板
26 コントローラ
28 温度センサ
Claims (6)
- OCB型の液晶パネルと、
この液晶パネルの周囲の温度を検出する温度検出手段と、
前記OCB型の液晶パネルの液晶をスプレイ配向からベンド配向へ転移させる転移電圧を印加する転移電圧印加手段と、
を備え、前記転移電圧印加手段における前記転移電圧は、互いに極性の異なる前半パルスと後半パルスとから構成され、前記前半パルスの幅L1と前記後半パルスの幅L2の比率L2/L1を前記検出温度が高いほど小さくするようにした
ことを特徴とする液晶表示装置。 - 前記比率L2/L1を、0.5〜1.0の間で変化させる
ことを特徴とする請求項1記載の液晶表示装置。 - OCB型の液晶パネルと、
この液晶パネルの周囲の温度を検出する温度検出手段と、
前記OCB型の液晶パネルの液晶をスプレイ配向からベンド配向へ転移させる転移電圧を印加する転移電圧印加手段と、
を備え、前記転移電圧印加手段における前記転移電圧は、互いに極性の異なる前半パルスと後半パルスとから構成され、前記前半パルスの電圧値V1の絶対値|V1|と前記後半パルスL2の電圧値V2の絶対値|V2|の比率|V2|/|V1|を前記検出温度が高いほど小さくするようにした
ことを特徴とする液晶表示装置。 - 前記比率|V2|/|V1|を、0.5〜1.5の間で変化させる
ことを特徴とする請求項3記載の液晶表示装置。 - OCB型の液晶パネルと、
この液晶パネルの周囲の温度を検出する温度検出手段と、
前記OCB型の液晶パネルの液晶をスプレイ配向からベンド配向へ転移させる転移電圧を印加する転移電圧印加手段と、
を備え、前記転移電圧印加手段における前記転移電圧は、互いに極性の異なる前半パルスと後半パルスとから構成され、前記前半パルスの積分値S1と前記後半パルスの積分値S2の比率S2/S1を前記検出温度が高いほど小さくするようにした
ことを特徴とする液晶表示装置。 - 前記比率S2/S1を、0.5〜1.5の間で変化させる
ことを特徴とする請求項5記載の液晶表示装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006165271A JP4195476B2 (ja) | 2006-06-14 | 2006-06-14 | 液晶表示装置 |
US11/760,950 US20070290976A1 (en) | 2006-06-14 | 2007-06-11 | Liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006165271A JP4195476B2 (ja) | 2006-06-14 | 2006-06-14 | 液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007333988A JP2007333988A (ja) | 2007-12-27 |
JP4195476B2 true JP4195476B2 (ja) | 2008-12-10 |
Family
ID=38861045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006165271A Expired - Fee Related JP4195476B2 (ja) | 2006-06-14 | 2006-06-14 | 液晶表示装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20070290976A1 (ja) |
JP (1) | JP4195476B2 (ja) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE159831T1 (de) * | 1992-12-25 | 1997-11-15 | Canon Kk | Flüssigkristallanzeigevorrichtung |
CN100442112C (zh) * | 2004-02-20 | 2008-12-10 | 东芝松下显示技术有限公司 | 液晶显示装置 |
-
2006
- 2006-06-14 JP JP2006165271A patent/JP4195476B2/ja not_active Expired - Fee Related
-
2007
- 2007-06-11 US US11/760,950 patent/US20070290976A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2007333988A (ja) | 2007-12-27 |
US20070290976A1 (en) | 2007-12-20 |
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