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1. IN8046/DELNP/2013 - LIQUID CRYSTAL DISPLAY DEVICE

Office
India
Application Number 8046/DELNP/2013
Application Date 13.09.2013
Publication Number 8046/DELNP/2013
Publication Date 19.12.2014
Publication Kind A
IPC
G02F 1/134
G02F 1/136
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
G02F 1/139
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
137characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
139based on orientation effects in which the liquid crystal remains transparent
Applicants SEMICONDUCTOR ENERGY LABORATORY CO. LTD.
Inventors KUBOTA Daisuke
YAMASHITA Akio
NAKANO Masaru
Title
(EN) LIQUID CRYSTAL DISPLAY DEVICE
Abstract
(EN) A liquid crystal display device using a horizontal electric field mode in which contrast ratio is improved is provided. A first polarizing plate having a polarization axis along a first direction a second polarizing plate having a polarization axis along a second direction orthogonal to the first direction a plurality of first structure bodies provided over a first substrate a plurality of second structure bodies provided over the first substrate a first electrode layer covering top surfaces and side surfaces of the plurality of first structure bodies and a second electrode layer covering top surfaces and side surfaces of the plurality of second structure bodies are provided. The side surfaces of the first structure bodies and the side surfaces of the second structure bodies are parallel to the first direction or the second direction. Thus a liquid crystal display device in which contrast ratio is improved can be provided.