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1. WO1996002867 - LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING THE SAME

Publication Number WO/1996/002867
Publication Date 01.02.1996
International Application No. PCT/JP1995/001412
International Filing Date 14.07.1995
Chapter 2 Demand Filed 13.02.1996
IPC
G02F 1/1365 2006.01
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
1362Active matrix addressed cells
1365in which the switching element is a two-electrode device
CPC
G02F 1/1365
GPHYSICS
02OPTICS
FDEVICES 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
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
1362Active matrix addressed cells
1365in which the switching element is a two-electrode device
Applicants
  • CITIZEN WATCH CO., LTD. [JP/JP]; 1-1, Nishi-Shinjuku 2-chome Shinjuku-ku Tokyo 163-04, JP (AllExceptUS)
  • SEKIGUCHI, Kanetaka [JP/JP]; JP (UsOnly)
Inventors
  • SEKIGUCHI, Kanetaka; JP
Agents
  • OSAWA, Takashi ; Room 818, Ikebukuro White House Building 20-2, Higashi Ikebukuro 1-chome Toshima-ku Tokyo 170, JP
Priority Data
6/16184414.07.1994JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING THE SAME
(FR) AFFICHAGE A CRISTAUX LIQUIDES ET SON PROCEDE DE FABRICATION
Abstract
(EN)
Upper electrodes (10, 11) and a lower electrode (2) are so provided as to be at right angles to each other on a base board (1) of a liquid crystal display, and two non-linear resistance elements (13, 14) are formed by the upper electrodes, an insulating film and the lower electrode. Either of the upper electrodes is connected to a signal electrode (9), the other connected to a display electrode (12) which constitutes a display image element. A connection portion (4) by which an anodic oxidation electrode (3) and the lower electrode (2) are connected together is partly cut off and so the lower electrode is insular. The display electrode (12) has an overlapping portion (15), where a two-layer film comprising the metal film of the joint portion (4) and the insulating film is left, under the display electrode (12). Owing to this arrangement, the asymmetric current-voltage characteristic due to the voltage applied to the signal electrode (a) is turned symmetric, and the DC component of the voltage applied to a liquid crystal layer is decreased. A decrease in the quality of the liquid crystal, a decrease in the contrast, and the occurrence of an image sticking phenomenon which are a flickering phenomenon and an after-image phenomenon are prevented.
(FR)
Des électrodes supérieures (10, 11) et une électrode inférieure sont agencées de sorte qu'elles soient orthogonales les unes par rapport aux autres sur une plaque de montage (1) d'un affichage à cristaux liquides, deux éléments de résistance non linéaires (13, 14) étant formés par les électrodes supérieures, une couche isolante et l'électrode inférieure. Une des électrodes supérieures est connectée à une électrode de signal (9), l'autre étant connectée à une électrode d'affichage (12) qui constitue un élément d'image affichée. Une partie de connexion (4) assurant la connexion d'une électrode d'oxydation anodique (3) avec l'électrode inférieure (2) est partiellement coupée de sorte que l'électrode inférieure soit insulaire. L'électrode d'affichage (12) présente une partie en chevauchement (15) sous laquelle se trouve une couche à double épaisseur comprenant la couche métallique de la partie de connexion (4) et la couche d'isolation. Grâce à ce dispositif, la caractéristique courant-tension asymétrique résultant de la tension appliquée à l'électrode de signal (a) est rendue symétrique, et la composante CC de la tension appliquée à une couche de cristaux liquides est réduite. On empêche ainsi une diminution de la qualité du cristal liquide et du contraste, ainsi que tout phénomène de collage se traduisant par un phénomène de scintillement et de traînage.
Also published as
GB9700682.9
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