Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO1998052177) METHOD AND APPARATUS FOR DRIVING A CAPACITIVE DISPLAY DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052177 International Application No.: PCT/US1998/008780
Publication Date: 19.11.1998 International Filing Date: 29.04.1998
Chapter 2 Demand Filed: 14.12.1998
IPC:
G09G 3/20 (2006.01) ,G09G 3/28 (2006.01) ,G09G 3/30 (2006.01) ,G09G 3/34 (2006.01)
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
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
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
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
22
using controlled light sources
28
using luminous gas-discharge panels, e.g. plasma panels
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
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
22
using controlled light sources
30
using electroluminescent panels
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
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
34
by control of light from an independent source
Applicants:
MOTOROLA INC. [US/US]; 1303 East Algonquin Road Schaumburg, IL 60196, US
Inventors:
PAGONES, Andrew, J.; US
Agent:
PICKENS, S., Kevin ; Motorola, Inc. Intellectual Property Dept. P.O. Box 10219 Scottsdale, AZ 85271-0219, US
Priority Data:
08/857,77816.05.1997US
Title (EN) METHOD AND APPARATUS FOR DRIVING A CAPACITIVE DISPLAY DEVICE
(FR) PROCEDE ET DISPOSITIF POUR L'ATTAQUE D'UN VISUEL CAPACITIF
Abstract:
(EN) An apparatus (110) for driving a capacitive display device (120) includes a pull-up transistor (180) having a source connected to a high voltage input node (184), a push-down transistor (182) having a source connected to a low voltage input node (186) and a drain connected to the drain of the pull-up transistor (180), a pull-up voltage level shifter (132) connected to the gate of the pull-up transistor (180), and a push-down voltage level shifter (134) connected to the gate of the push-down transistor (182), the drain of the pull-up transistor (180) connected to the drain of the push-down transistor (182) at a driver output node (170). A method for driving a capacitive display device (120) includes driving the capacitive display device (120) with a drive voltage signal (172) having a bandwidth substantially within the bandwidth of the capacitive display device (120).
(FR) L'invention concerne un dispositif (110) permettant d'attaquer un visuel capacitif (120), qui comprend un transistor d'excursion haute (180) ayant une source connectée à un noeud d'entrée haute tension (184), un transistor d'excursion basse (182) ayant une source connectée à un noeud d'entrée basse tension (186), et un drain connecté au drain du transistor d'excursion haute (180), un décaleur de niveau de tension d'excursion haute (132) connecté à la porte du transistor d'excursion haute (180), et un décaleur de niveau de tension d'excursion basse (134) connecté à la porte du transistor d'excursion basse (182), le drain du transistor d'excursion haute (180) étant connecté au drain du transistor d'excursion basse (182) au niveau d'un noeud de sortie du circuit d'attaque (170). L'invention concerne aussi un procédé d'attaque pour visuel capacitif (120), qui consiste à attaquer ledit visuel (120) à l'aide d'un signal de tension d'attaque (172) dont la largeur de bande est sensiblement dans les limites de la largeur de bande du visuel capacitif (120).
Designated States: CN, JP, KR
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0981814