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1. WO1996002865 - POWER SOURCE CIRCUIT, LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC DEVICE

Publication Number WO/1996/002865
Publication Date 01.02.1996
International Application No. PCT/JP1995/001387
International Filing Date 12.07.1995
IPC
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for 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
34by control of light from an independent source
36using liquid crystals
H02M 3/07 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
06using resistors or capacitors, e.g. potential divider
07using capacitors charged and discharged alternately by semiconductor devices with control electrode
CPC
G09G 2330/02
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2330Aspects of power supply; Aspects of display protection and defect management
02Details of power systems and of start or stop of display operation
G09G 3/3622
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for 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
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3622using a passive matrix
G09G 3/3696
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for 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
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3696Generation of voltages supplied to electrode drivers
H02M 2001/009
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
0083Converters characterized by their input or output configuration
009having more than one output with independent control
H02M 3/07
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
06using resistors or capacitors, e.g. potential divider
07using capacitors charged and discharged alternately by semiconductor devices with control electrode ; , e.g. charge pumps
Applicants
  • SEIKO EPSON CORPORATION [JP/JP]; 4-1, Nishi-shinjuku 2-chome Shinjuku-ku Tokyo 163, JP (AllExceptUS)
  • ITO, Katsunori [JP/JP]; JP (UsOnly)
Inventors
  • ITO, Katsunori; JP
Agents
  • INOUE, Hajime ; 2nd floor, Ogikubo TM Building 26-13, Ogikubo 5-chome Suginami-ku Tokyo 167, JP
Priority Data
6/16237814.07.1994JP
6/32090622.12.1994JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POWER SOURCE CIRCUIT, LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC DEVICE
(FR) CIRCUIT A SOURCES DE COURANT ELECTRIQUE, DISPOSITIF D'AFFICHAGE A CRISTAUX LIQUIDES ET DISPOSITIF ELECTRONIQUE
Abstract
(EN)
The range of first driving voltages V0-V2 and the range of second driving voltages V3-V5 do not overlap. The first voltages V0-V2 are supplied from first power sources VDD and VSS through operational amplifiers OP1 and OP2. The second voltages V3-V5 are supplied in such a way that voltages generated by the power sources VDD and VSS are supplied with respect to a reference potential VEE by using switched capacitor circuits composed of voltage-converting capacitors C11 and C12 and switches SW11-SW16.
(FR)
La plage de premières tensions de commande V0-V2 et la plage de secondes tensions de commande V3-V5 ne se chevauchent pas. Les premières tensions V0-V2 sont fournies par de premières sources de courant VDD et VSS par l'intermédiaire d'amplificateurs opérationnels OP1 et OP2. Les secondes tensions V3-V5 sont fournies de manière à ce que les tensions produites par les sources de tension VDD et VSS soient fournies par rapport à un potentiel de référence VEE en utilisant des circuits à capacités commutées constitués par les condensateurs convertisseurs de tension C11 et C12 et les commutateurs SW11-SW16.
Also published as
FI961163
Latest bibliographic data on file with the International Bureau