IT999570B - Sistema di attivazione per indicatori a cristalli liquidi - Google Patents
Sistema di attivazione per indicatori a cristalli liquidiInfo
- Publication number
- IT999570B IT999570B IT69768/73A IT6976873A IT999570B IT 999570 B IT999570 B IT 999570B IT 69768/73 A IT69768/73 A IT 69768/73A IT 6976873 A IT6976873 A IT 6976873A IT 999570 B IT999570 B IT 999570B
- Authority
- IT
- Italy
- Prior art keywords
- liquid crystal
- activation system
- crystal indicators
- indicators
- activation
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
- G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
- G04G9/122—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals using multiplexing techniques
-
- 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
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
- G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9560672A JPS5317256B2 (US06168776-20010102-C00041.png) | 1972-09-19 | 1972-09-19 | |
| JP3847473A JPS49126228A (US06168776-20010102-C00041.png) | 1973-04-03 | 1973-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT999570B true IT999570B (it) | 1976-03-10 |
Family
ID=26377739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT69768/73A IT999570B (it) | 1972-09-19 | 1973-09-19 | Sistema di attivazione per indicatori a cristalli liquidi |
Country Status (10)
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4079369A (en) * | 1973-12-19 | 1978-03-14 | Japan Suncrux Co., Ltd. | Liquid crystal display device |
| JPS5234918B2 (US06168776-20010102-C00041.png) * | 1974-05-31 | 1977-09-06 | ||
| DE2534694C2 (de) * | 1974-08-14 | 1984-02-02 | Kabushiki Kaisha Daini Seikosha, Tokyo | Steuerschaltung für eine Flüssigkristall-Anzeigeeinrichtung |
| US4062626A (en) * | 1974-09-20 | 1977-12-13 | Hitachi, Ltd. | Liquid crystal display device |
| GB1564032A (en) * | 1975-11-18 | 1980-04-02 | Citizen Watch Co Ltd | Method and device fordriving liquid crystal display matrix |
| US4359222A (en) * | 1978-10-30 | 1982-11-16 | Smith Engineering | Hand-held electronic game playing device with replaceable cartridges |
| US4655561A (en) * | 1983-04-19 | 1987-04-07 | Canon Kabushiki Kaisha | Method of driving optical modulation device using ferroelectric liquid crystal |
| US4582984A (en) * | 1983-05-23 | 1986-04-15 | Thomas & Betts Corporation | Wire marker printer |
| SE464264B (sv) * | 1984-02-24 | 1991-03-25 | Esab Ab | Optiskt filter foer svetsskyddsglas |
| US4701026A (en) * | 1984-06-11 | 1987-10-20 | Seiko Epson Kabushiki Kaisha | Method and circuits for driving a liquid crystal display device |
| JPS60263995A (ja) * | 1984-06-13 | 1985-12-27 | 株式会社日立製作所 | 液晶駆動回路 |
| US4659181A (en) * | 1984-07-12 | 1987-04-21 | Ncr Corporation | Liquid crystal displays and method by which improved apparent viewing cones are attained therefor |
| JPS6152630A (ja) * | 1984-08-22 | 1986-03-15 | Hitachi Ltd | 液晶素子の駆動方法 |
| CH688292A5 (de) * | 1993-06-16 | 1997-07-15 | Xelux Holding Ag | Blendschutzvorrichtung. |
| US6078303A (en) | 1996-12-19 | 2000-06-20 | Colorado Microdisplay, Inc. | Display system having electrode modulation to alter a state of an electro-optic layer |
| US6046716A (en) | 1996-12-19 | 2000-04-04 | Colorado Microdisplay, Inc. | Display system having electrode modulation to alter a state of an electro-optic layer |
| US20010052885A1 (en) * | 1997-09-12 | 2001-12-20 | Masaya Okita | Method for driving a nematic liquid crystal |
| JPH11296150A (ja) | 1998-04-10 | 1999-10-29 | Masaya Okita | 液晶の高速駆動方法 |
| US6841772B1 (en) | 2001-05-05 | 2005-01-11 | Jackson Products, Inc. | Eye-protection device having dual high voltage switching |
| US6881939B1 (en) | 2001-05-05 | 2005-04-19 | Jackson Products, Inc. | Microprocessor based automatically dimmable eye protection device |
| WO2005017636A2 (en) | 2003-08-11 | 2005-02-24 | Hamilton Thomas J | Eye-protection device having dual high voltage switching |
| US7637622B2 (en) | 2005-10-11 | 2009-12-29 | 3M Innovative Properties Company | Control of an automatic darkening filter |
| EP3193797B1 (en) | 2014-09-15 | 2022-05-25 | 3M Innovative Properties Company | Personal protective system tool communication adapter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3322485A (en) * | 1962-11-09 | 1967-05-30 | Rca Corp | Electro-optical elements utilizing an organic nematic compound |
| US3519330A (en) * | 1967-09-14 | 1970-07-07 | Rca Corp | Turnoff method and circuit for liquid crystal display element |
| US3503672A (en) * | 1967-09-14 | 1970-03-31 | Rca Corp | Reduction of turn-on delay in liquid crystal cell |
| US3653745A (en) * | 1970-06-11 | 1972-04-04 | Rca Corp | Circuits for driving loads such as liquid crystal displays |
| JPS53279B1 (US06168776-20010102-C00041.png) * | 1971-02-25 | 1978-01-06 | ||
| US3760406A (en) * | 1972-01-13 | 1973-09-18 | Hmw Industries | Liquid crystal display circuit |
| US3789388A (en) * | 1972-03-17 | 1974-01-29 | Ragen Semiconductor Inc | Apparatus for providing a pulsed liquid crystal display |
| US3809458A (en) * | 1972-05-25 | 1974-05-07 | Rca Corp | Liquid crystal display |
-
1973
- 1973-09-11 CA CA180,772A patent/CA1021078A/en not_active Expired
- 1973-09-13 GB GB4310473A patent/GB1450915A/en not_active Expired
- 1973-09-18 SE SE7312733A patent/SE394755B/xx unknown
- 1973-09-19 NL NLAANVRAGE7312883,A patent/NL172279C/xx not_active IP Right Cessation
- 1973-09-19 DE DE2347093A patent/DE2347093C3/de not_active Expired
- 1973-09-19 IT IT69768/73A patent/IT999570B/it active
- 1973-09-19 FR FR7333605A patent/FR2199909A5/fr not_active Expired
- 1973-09-19 US US398850A patent/US3902169A/en not_active Expired - Lifetime
- 1973-09-19 AU AU60465/73A patent/AU473489B2/en not_active Expired
- 1973-09-19 CH CH1345573A patent/CH577180A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH577180A5 (US06168776-20010102-C00041.png) | 1976-06-30 |
| DE2347093A1 (de) | 1974-04-04 |
| GB1450915A (en) | 1976-09-29 |
| NL172279B (nl) | 1983-03-01 |
| DE2347093B2 (de) | 1976-01-15 |
| SE394755B (sv) | 1977-07-04 |
| NL7312883A (US06168776-20010102-C00041.png) | 1974-03-21 |
| DE2347093C3 (de) | 1982-01-28 |
| AU473489B2 (en) | 1976-06-24 |
| AU6046573A (en) | 1975-03-20 |
| US3902169A (en) | 1975-08-26 |
| FR2199909A5 (US06168776-20010102-C00041.png) | 1974-04-12 |
| CA1021078A (en) | 1977-11-15 |
| NL172279C (nl) | 1983-08-01 |
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