SUBSTRATE ASSEMBLY FOR ELECTROOPTICAL DEVICE, METHOD FOR MANUFACTURING SUBSTRATE ASSEMBLY FOR ELECTROOPTICAL DEVICE, ELECTROOPTICAL DEVICE, METHOD FOR MANUFACTURING ELECTROOPTICAL DEVICE, AND ELECTRONIC APPARATUS

• US 6,850,297 B2
• Filed: 07/26/2002
• Issued: 02/01/2005
• Est. Priority Date: 07/27/2001
• Status: Expired due to Term

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Takizawa, Keiji, Otagiri, Yoshihiro
• Primary Examiner(s): Kim, Robert H.
• Assistant Examiner(s): Caley, Michael H
• Application Number:
  US10/206,139
• Publication Number:
  US 20030020863A1
• Time in Patent Office: 921 Days
• Field of Search: 349/67, 349113-115, 349/122, 349/139, 349/160, 349/106
• US Class Current: 349/114
• CPC Class Codes: G02F 1/133555 Transflectors

Abstract

An optically transmissive layer 212 is formed on a first substrate 211, and a slope surface 212a having a valley in cross section is formed in the optically transmissive layer 212. A reflective layer 213 having a aperture 213h on the slope surface 212a is formed on the optically transmissive layer 212. A color layer 214 is formed on the reflective layer 213. The color layer 214 has a thick portion 214a formed corresponding to the slope surface 212a of the optically transmissive layer 212.

Claims

1. A substrate assembly for an electrooptical device, comprising:

a substrate;

an optically transmissive layer disposed over the substrate, the optically transmissive layer having a slope surface inclined with respect to the substrate, and substantially transmits light;

a reflective layer, disposed on the optically transmissive layer, and having an aperture with an edge; and

a color layer disposed over the slope surface and on the reflective layer;

wherein the edge of the aperture overlaps the slope surface.

2. A substrate assembly for an electrooptical device according to claim 1, wherein the optically transmissive layer comprises a valley portion formed of the slope surface.

3. A substrate assembly for an electrooptical device according to claim 1, wherein the reflective layer comprises a reflective slope surface inclined with respect to the substrate, and the reflective slope surface is arranged at least on the slope surface of the optically transmissive layer.

4. A substrate assembly for an electrooptical device according to claim 1, wherein the reflective layer comprises a finely rugged portion for scattering visible light.

5. A substrate assembly for an electrooptical device according to claim 1, wherein an upper surface of the color layer is flat.

6. A substrate assembly for an electrooptical device according to claim 1, wherein an inclination angle of the slope surface is within a range of 68 to 79 degrees with respect to the substrate.

8. A substrate assembly for an electrooptical device according to claim 3, wherein the optically transmissive layer comprises a surface parallel with the substrate, and the reflective slope surface of the reflective layer extends over the slope surface of the optically transmissive layer from the parallel surface thereof.

7. A substrate assembly for an electrooptical device, comprising:

a substrate;

an optically transmissive layer disposed over the substrate, the optically transmissive layer having an aperture, and substantially transmits light;

a reflective layer having an aperture with an edge overlapping the aperture of the optically transmissive layer; and

a color layer disposed over the optically transmissive layer and within the aperture of the optically transmissive layer;

wherein the optically transmissive layer has a slope surface, inclined with respect to the substrate, around the aperture thereof; and

wherein the edge of the aperture of the reflective layer overlaps the slope surface or within the aperture of the optically transmissive layer.

9. A substrate assembly for an electrooptical device, comprising:

a substrate;

a reflective layer disposed on the substrate, and having an aperture with an edge;

an optically transmissive layer disposed on the reflective layer, the optically transmissive layer having a slope surface inclined with respect to the substrate, and substantially transmits light; and

a color layer disposed on the slope surface and over the reflective layer;

wherein the slope surface overlaps the edge of the aperture.

10. A substrate assembly for an electrooptical device, comprising:

a substrate;

a reflective layer disposed on the substrate, and having an aperture with an edge;

an optically transmissive layer disposed on the reflective layer, the optically transmissive layer having an aperture overlapping the aperture of the reflective layer, and substantially transmits light; and

a color layer disposed on the optically transmissive layer and within the aperture of the optically transmissive layer;

wherein the optically transmissive layer comprises a slope surface, inclined with respect to the substrate, around the aperture thereof and

wherein the edge of the aperture of the reflective layer overlaps the slope surface or within the aperture of the optically transmissive layer.

11. An electrooptical device comprising:

a substrate;

an optically transmissive layer disposed over the substrate, the optically transmissive layer having a slope surface inclined with respect to the substrate, and substantially transmits light; and

a reflective layer disposed on the optically transmissive layer, and having an aperture with an edge; and

a color layer disposed over the slope surface and on the reflective layer;

wherein the edge of the aperture is placed on the slope surface.

12. Electronic apparatus comprising an electrooptical device according to claim 11 and control means for controlling the electrooptical device.

13. An electrooptical device comprising:

a substrate;

an optically transmissive layer disposed over the substrate, the optically transmissive layer having an aperture, and substantially transmits light;

a reflective layer having an aperture with an edge overlapping the aperture of the optically transmissive layer; and

a color layer disposed over the optically transmissive layer and within the aperture of the optically transmissive layer;

wherein the optically transmissive layer has a slope surface, inclined with respect to the substrate, around the aperture thereof; and

wherein the edge of the aperture of the reflective layer overlaps the slope surface or within the aperture of the optically transmissive layer.

14. An electrooptical device comprising:

a substrate;

a reflective layer disposed on the substrate, and having an aperture with an edge;

an optically transmissive layer disposed on the reflective layer, the optically transmissive layer having a slope surface inclined with respect to the substrate, and substantially transmits light; and

a color layer disposed on the slope surface and over the reflective layer;

wherein the slope surface overlaps the edge of the aperture.

15. An electrooptical device comprising:

a substrate;

a reflective layer disposed on the substrate, and having an aperture with an edge;

an optically transmissive layer disposed on the reflective layer, the optically transmissive layer having an aperture ovelapping the aperture of the reflective layer, and substantially transmits light; and

a color layer disposed on the optically transmissive layer and within the aperture of the optically transmissive layer;

wherein the optically transmissive layer comprises a slope surface, inclined with respect to the substrate, around the aperture thereof; and

wherein the edge of the aperture of the reflective layer overlaps the slope surface or within the aperture of the optically transmissive layer.

16. A substrate assembly for an electrooptical device, comprising:

a substrate including a transmissive region and a reflecting region;

an optically transmissive layer disposed over the substrate, the optically transmissive layer having a slope surface inclined with respect to the substrate, and substantially transmits light;

a reflective layer disposed on the optically transmissive layer in the reflecting region and on at least of a part of the slope surface of the optically transmissive layer, and having an aperture located in correspondence with the transmissive region surrounded by the slope surface; and

a color layer disposed on the reflective layer and within the aperture.

17. An electrooptical device comprising:

a substrate including a transmissive region and a reflecting region,

an optically transmissive layer disposed over the substrate, the optically transmissive layer having a slope surface inclined with respect to the substrate, and substantially transmits light;

a reflective layer disposed on the optically transmissive layer in the reflecting region and on at least of a part of the slope surface of the optically transmissive layer, and having an aperture located in correspondence with the transmissive region surrounded by the slope surface; and

a color layer disposed on the reflective layer and within the aperture.