← Back to Patent Explorer
EP0288304A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Liquid crystal display device

Assignee: Sharp Corp
•
Filing: 1988-04-22
•
Granted: —
•
Expires: 2008-04-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Disclosed is a cell structure of a liquid crystal display device disposing a first spacer (5) of smaller diameter being overlaid on a color filter layer (3) in a liquid crystal cell of a liquid crystal cell device having said color filter layer (3) formed on the inner surface of cell substrate (1,2), and a second spacer (6) of greater diameter outside said color filter layer (3), wherein the diameter difference of said first spacer (5) and second spacer (6) is set to the thickness of said color filter layer (3) substantially.

Inventors

  • 👤 Toshiaki Takamatsu

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 07:19
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/1339; G02F1/13392

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 113 words
A color liquid crystal display device comprising: a first substrate possessing a first electrode and a first orientation film; a second substrate, opposite to said first substrate, possessing a second electrode, a second orientation film and a color filter layer; a seal part for forming a free space for injecting liquid crystal material by adhering said first substrate and second substrate; a first spacer disposed between the color filter layer on said second substrate and the first substrate; and a second spacer disposed between said first substrate and second substrate, having a diameter substantially equal to the sum of the diameter of said first spacer and the thickness of the color filter layer.
Claim 2
Dependent Claim 113 words
A color liquid crystal display device comprising: a first substrate possessing a first electrode and a first orientation film; a second substrate, opposite to said first substrate, possessing a second electrode, a second orientation film and a color filter layer; a seal part for forming a free space for injecting liquid crystal material by adhering said first substrate and second substrate; a first spacer disposed between the color filter layer on said second substrate and the first substrate; and a second spacer disposed between said first substrate and second substrate, having a diameter substantially equal to the sum of the diameter of said first spacer and the thickness of the color filter layer.
Claim 3
Dependent Claim 22 words
The color liquid crystal display device of claim 1, the thickness of said color filter layer is about 2 to 3 µm.
Claim 4
Dependent Claim 81 words
A cell structure of a liquid crystal display device disposing a first spacer of smaller diameter being overlaid on a color filter layer in a liquid crystal cell of a liquid crystal cell device having said color filter layer formed on the inner surface of cell substrate, and a second spacer of greater diameter outside said color filter layer, wherein the diameter difference of said first spacer and second spacer is set to the thickness of said color filter layer substantially.
Claim 5
Dependent Claim 81 words
A cell structure of a liquid crystal display device disposing a first spacer of smaller diameter being overlaid on a color filter layer in a liquid crystal cell of a liquid crystal cell device having said color filter layer formed on the inner surface of cell substrate, and a second spacer of greater diameter outside said color filter layer, wherein the diameter difference of said first spacer and second spacer is set to the thickness of said color filter layer substantially.
Claim 6
Dependent Claim 109 words
A liquid crystal cell in which a liquid crystal material 8 is disposed between two opposed substrates, one of which supports a layer, or a plurality of overlaid layers on a first portion thereof, and in which the spacing apart of said opposed substrates is affected by spacer means comprising first spacer elements between said layer or layers on said one substrate and the other substrate, and second spacer elements between another portion of said one substrate excluding said first portion, characterised in that said second spacer elements have a greater diameter than said first spacer elements, the diameter difference compensating for the thickness of the layer or layers.
Claim 7
Dependent Claim 109 words
A liquid crystal cell in which a liquid crystal material 8 is disposed between two opposed substrates, one of which supports a layer, or a plurality of overlaid layers on a first portion thereof, and in which the spacing apart of said opposed substrates is affected by spacer means comprising first spacer elements between said layer or layers on said one substrate and the other substrate, and second spacer elements between another portion of said one substrate excluding said first portion, characterised in that said second spacer elements have a greater diameter than said first spacer elements, the diameter difference compensating for the thickness of the layer or layers.
Claim 8
Dependent Claim 26 words
A liquid crystal cell according to claim 4 wherein said layer or layers on said first portion of said one substrate comprise a colour, filter layer.
Claim 9
Dependent Claim 35 words
A liquid crystal cell according to claim 4 or claim 5 wherein said layer or layers on said first portion of said one substrate comprise a thin film electrode and a liquid crystal orientation film.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag