Plastic liquid crystal display device

• US 5,336,535 A
• Filed: 11/23/1992
• Issued: 08/09/1994
• Est. Priority Date: 11/27/1991
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Misono, Kenji, Takanashi, Hiroshi, Iwamoto, Makoto, Isohata, Kyouhei, Fukuchi, Shunsei
• Primary Examiner(s): Thomas, Alexander S.
• Application Number:
  US07/980,209
• Time in Patent Office: 624 Days
• Field of Search: 428/1, 359/79
• US Class Current: 428/1.32
• CPC Class Codes: C09K 2323/033 Silicon compound, e.g. glass or organosilicon
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/133345 Insulating layers G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence

Abstract

A plastic liquid crystal display device having top coats (insulating films) which can be set at 200° C. or less without resort to ultraviolet light and have appreciable flexibility. The plastic liquid crystal display device comprises a pair of plastic substrates, transparent electrodes, insulating films for protecting the transparent electrodes, aligning films and a liquid crystal, wherein the insulating film (top coat) is formed by dispersing any one of acryl-silanic resin, epoxy-silanic resin and silanic resin in a solvent to provide a solution, coating the solution on the transparent electrode and sintering a resulting coating at 200° C. or less.

Claims

1. A plastic liquid crystal display device comprising:

a pair of plastic substrates, located on either side of a pair of transparent electrodes, and

a pair of insulating films for protecting said pair of transparent electrodes, wherein said pair of insulating films are formed by dispersing any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin in a solvent to produce a solution, coating the solution on said pair of transparent electrodes and sintering a resulting coating at 200°

C. or less.

2. The plastic liquid crystal display device of claim 1, wherein a silane weight percentage of said any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin is within a range of 1 to 70 percent.

3. The plastic liquid display device of claim 2, wherein a silane weight percentage of said any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin is within a range of 45 to 55 percent.

4. A plastic liquid crystal display device comprising:

a pair of plastic substrates, located on either side of a pair of transparent electrodes, and

a pair of insulating films for protecting said pair of transparent electrodes, wherein said pair of insulating films are formed by dispensing any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin in a solvent to produce a solution, coating the solution on said pair of transparent electrodes and sintering a resulting coating at 200°

C. or less, said acryl-silanic resin or said epoxy-silanic resin being prepared by dispersing a silicon oxide or a silanic compound in acrylic resin or epoxy resin.

5. The plastic liquid crystal display device of claim 4, wherein a silane weight percentage of said any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin is within a range of 1 to 70 percent.

6. The plastic liquid display device of claim 5, wherein a silane weight percentage of said any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin is within a range of 45 to 55 percent.

7. A plastic liquid crystal display device comprising:

a pair of plastic substrates opposing each other;

a pair of multi-layers, each including a lower protective film, a transparent electrode, and an insulating film, formed between said pair of plastic substrates; and

a liquid crystal between said pair of multi-layers;

wherein each insulating film is formed by dispersing any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin in a solvent to produce a solution, coating the solution on said pair of transparent electrodes and sintering a resulting coating at 200°

C. or less.

8. The plastic liquid crystal display device of claim 7, wherein a silane weight percentage of said any one of acrylic-silane resin, epoxy-silanic resin, and silanic resin is within a range of 1 to 70 percent.

9. The plastic liquid display device of claim 8, wherein a silane weight percentage of said any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin is within a range of 45 to 55 percent.

10. A plastic liquid crystal display device comprising:

a pair of plastic substrates opposing each other;

a pair of multi-layers, each including a lower protective film, a transparent electrode, and an insulating film, formed between said pair of plastic substrates; and

a liquid crystal between said pair of multi-layers;

wherein each insulating film is formed by dispersing any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin in a solvent to produce a solution, coating the solution on said pair of transparent electrodes and sintering a resulting coating at 200°

C. or less, said acryl-silanic resin or said epoxy-silanic resin being prepared by dispersing a silicon oxide or a silanic compound in acrylic resin or epoxy resin.

11. The plastic liquid crystal display device of claim 10, wherein a silane weight percentage of said any one of acrylic-silanic resin, epoxy-silanic resin, and silanic resin is within a range of 1 to 70 percent.

12. The plastic liquid display device of claim 11, wherein a silane weight percentage of said any one of acrylic-silanic resin, epoxy-silanic resin, and silanic is within a range of 45 to 55 percent.