GB9710387D0 - Power supply device - Google Patents
Power supply deviceInfo
- Publication number
- GB9710387D0 GB9710387D0 GBGB9710387.3A GB9710387A GB9710387D0 GB 9710387 D0 GB9710387 D0 GB 9710387D0 GB 9710387 A GB9710387 A GB 9710387A GB 9710387 D0 GB9710387 D0 GB 9710387D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- power supply
- supply device
- power
- supply
- 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.)
- Granted
Links
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
- G09G3/3674—Details of drivers for scan electrodes
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
- G05F3/242—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage
-
- 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
- G09G3/3696—Generation of voltages supplied to electrode drivers
-
- 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
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0606—Manual adjustment
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/066—Adjustment of display parameters for control of contrast
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18039293 | 1993-07-21 | ||
JP19254393 | 1993-08-03 | ||
JP14853394A JP3329077B2 (en) | 1993-07-21 | 1994-06-07 | Power supply device, liquid crystal display device, and power supply method |
GB9414611A GB2280521B (en) | 1993-07-21 | 1994-07-20 | Power supply device,liquid crystal display device,and method of supplying power |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9710387D0 true GB9710387D0 (en) | 1997-07-16 |
GB2311631A GB2311631A (en) | 1997-10-01 |
GB2311631B GB2311631B (en) | 1997-11-12 |
Family
ID=27451187
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9710387A Expired - Lifetime GB2311631B (en) | 1993-07-21 | 1994-07-20 | Power supply device |
GB9710386A Expired - Lifetime GB2311630B (en) | 1993-07-21 | 1994-07-20 | Power supply device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9710386A Expired - Lifetime GB2311630B (en) | 1993-07-21 | 1994-07-20 | Power supply device |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB2311631B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007035418A1 (en) * | 2007-07-28 | 2009-01-29 | Vastview Technology Inc. | Direct current converter for electronic device, has circuit with current source, and producing compensation voltage, which is superimposed to regulate voltage level of output direct current voltage |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4100437A (en) * | 1976-07-29 | 1978-07-11 | Intel Corporation | MOS reference voltage circuit |
US4141002A (en) * | 1977-03-11 | 1979-02-20 | Sperry Rand Corporation | Modular columnar electroluminescent display control circuit |
JPS5498677A (en) * | 1978-01-11 | 1979-08-03 | Citizen Watch Co Ltd | Electronic watch |
US4348666A (en) * | 1979-06-20 | 1982-09-07 | Nippon Gakki Seizo Kabushiki Kaisha | Signal level display apparatus |
JP2695981B2 (en) * | 1990-10-05 | 1998-01-14 | 株式会社東芝 | LCD drive power supply circuit |
JP2912480B2 (en) * | 1991-08-22 | 1999-06-28 | シャープ株式会社 | Display device drive circuit |
US5281906A (en) * | 1991-10-29 | 1994-01-25 | Lattice Semiconductor Corporation | Tunable voltage reference circuit to provide an output voltage with a predetermined temperature coefficient independent of variation in supply voltage |
JP3234043B2 (en) * | 1993-05-10 | 2001-12-04 | 株式会社東芝 | Power supply circuit for driving LCD |
SG54123A1 (en) * | 1993-12-22 | 1998-11-16 | Seiko Epson Corp | Liquid-crystal display system and power supply method |
-
1994
- 1994-07-20 GB GB9710387A patent/GB2311631B/en not_active Expired - Lifetime
- 1994-07-20 GB GB9710386A patent/GB2311630B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2311631A (en) | 1997-10-01 |
GB9710386D0 (en) | 1997-07-16 |
GB2311630B (en) | 1997-11-12 |
GB2311631B (en) | 1997-11-12 |
GB2311630A (en) | 1997-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20140719 |