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1. (WO1980000038) MONITORING DEVICE FOR MONITORING THE SEGMENTS OF A LIQUID CRYSTAL DISPLAY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1980/000038 International Application No.: PCT/CH1979/000036
Publication Date: 10.01.1980 International Filing Date: 07.03.1979
IPC:
G02F 1/13 (2006.01) ,G09G 3/00 (2006.01) ,G09G 3/04 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
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
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
04
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
Applicants:
Inventors:
Priority Data:
6301/7809.06.1978CH
Title (EN) MONITORING DEVICE FOR MONITORING THE SEGMENTS OF A LIQUID CRYSTAL DISPLAY
(FR) DISPOSITIF DE SURVEILLANCE DES SEGMENTS D"UN AFFICHAGE A CRISTAUX LIQUIDES
Abstract:
(EN) A circuit (30, 42, 46) is provided for all the segments (A, B, C, D, E, F, G) of a liquid crystal display (10) which permits the automatic determination, by use of the capacitive behaviour of the display", of the faulty or short circuit segments. The monitoring device is applicable to scales.
(FR) Il est prevu un circuit (30, 42, 46) pour tous les segments (A, B, C, D, E, F, G) d"un affichage a cristaux liquides (10) qui permet de determiner automatiquement en utilisant le comportement capacitif de l"affichage les segments defectueux ou les segments en court-circuit. Le dispositif de surveillance est applicable a des balances.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)