Electro-optical apparatus, manufacturing method thereof, and electronic instrument

• US 20030081315A1
• Filed: 10/30/2002
• Published: 05/01/2003
• Est. Priority Date: 10/30/2001
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Kobayashi, Hidekazu
• Granted Patent: US 6,882,400 B2
• Time in Patent Office: Days
• US Class Current: 359/495
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/8731 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers

Abstract

The invention reduces or suppresses outside light reflection without reducing or substantially reducing the light emitting strength from a light-emitting element. An apparatus of the invention includes a light-emitting element. A wavelength correcting unit, a planar polarization beam splitter, and a polarizing plate are also included.

Claims

1. An electro-optical apparatus, comprising:

a light-emitting element;

a wavelength correcting unit;

a planar polarization beam splitter; and

a polarizing plate.

2. The electro-optical apparatus according to claim 1, the planar polarization beam splitter including a sealing layer to hermetically seal the light-emitting element.

3. The electro-optical apparatus according to claim 2, the planar polarization beam splitter being formed of a plurality of layers by alternately laying up an inorganic compound layer having an isotropic refractive index, on which a rubbing treatment is performed in a predetermined direction, and an organic compound layer having an anisotropic refractive index.

4. The electro-optical apparatus according to claim 3, in the laid up layers, each having the isotropic refractive index, of the planar polarization beam splitter, the rubbing directions being substantially the same.

5. The electro-optical apparatus according to claim 1, the wavelength correcting unit being formed by laying up a plurality of liquid crystalline organic compound layers, in each of which chiral dopant is orientated in a predetermined direction, so that the chiral dopant orientating direction of each layer is displaced by a predetermined angle from each other.

6. The electro-optical apparatus according to claim 1, on a surface of the polarizing plate, at least one of nonglaring treatment and reflection-reducing treatment being performed.

7. An electronic instrument, comprising:

the electro-optical apparatus according to claim 1.

8. A manufacturing method of an electro-optical apparatus with a light-emitting element, comprising:

arranging a wavelength correcting unit;

arranging a planar polarization beam splitter; and

arranging a polarizing plate.

9. The manufacturing method according to claim 8, further including forming a sealing layer to hermetically seal the light-emitting element with the planar polarization beam splitter.

10. The manufacturing method according to claim 9, the forming the sealing layer including forming a plurality of layers by alternately laying up an inorganic compound layer having an isotropic refractive index, on which a rubbing treatment is performed in a predetermined direction, and an organic compound layer having an anisotropic refractive index.

11. The manufacturing method according to claim 10, further including forming the planar polarization beam splitter by laying up layers, each having the isotropic refractive index, so that the rubbing directions are substantially the same.

12. The manufacturing method according to claim 8, further including forming the wavelength correcting unit by laying up a plurality of liquid crystalline organic compound layers, in each of which chiral dopant is orientated in a predetermined direction, so that the chiral dopant orientating direction of each layer is displaced by a predetermined angle from each other.

13. The manufacturing method according to claim 8, further including performing at least one of nonglaring treatment and reflection-reducing treatment on a surface of the polarizing plate.