Electro-optical module and projection-type display apparatus

Inventor: Hidekazu Hirabayashi (Shiojiri, JP)

Assignee: Seiko Epson Corporation

G02F1/133308 H04N5/7441 H04N9/3105 H04N9/3141 H04N9/3144 G02F2001/133317

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Quick Facts

Patent No.: US 10,054,807
App. No.: 14/537,251
Granted: Aug 21, 2018
Kind: B2

External Links

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Abstract

In an electro-optical module, a first transparent plate is provided on a second surface of a first substrate of an electro-optical panel. A size of the first transparent plate is smaller than that of the first substrate, and the first substrate includes a protrusion surface protruding from the first transparent plate. In the frame made of metal that accommodates the electro-optical panel and the first transparent plate therein, corner portions bent along the protrusion surface of the first substrate and the side surfaces of the first transparent plate is provided.

Claims (56)

1. An electro-optical module comprising:

an electro-optical panel that includes a first substrate, a second substrate which is disposed so as to face the first substrate and an electro-optical material layer which is provided between the first substrate and second substrate,

a first transparent plate that overlaps at least an image display area of the electro-optical panel on a side of the first substrate on an opposite side to the second substrate,

a second transparent plate that overlaps the image display area on a surface of the second substrate on an opposite side to the first substrate, and

a frame that includes a corner portion bent along a protrusion surface protruding from a side surface of the first transparent plate and the first transparent plate of the first substrate, and that accommodates the first transparent plate and the electro-optical panel,

wherein the first substrate includes a protrusion portion which protrudes from an end portion of the second substrate and to which a flexible wiring board is connected,

wherein, among protrusion surfaces of the first substrate, an overlapping width of a first protrusion surface on a protrusion portion side that overlaps with the frame is larger than an overlapping width of a second protrusion surface that overlaps with the frame, the second protrusion surface being positioned on a side opposite to the first protrusion surface across the first transparent plate, and

wherein the overlapping width of the second protrusion surface that overlaps with the frame is larger than an overlapping width of a third protrusion surface that overlaps with the frame, the third protrusion surface being positioned between the first protrusion surface and the second protrusion surface.

2. The electro-optical module according to claim 1 ,

wherein a size of the first transparent plate is smaller than that of the first substrate, and

wherein the protrusion surface and the corner portion are formed so as to surround the entire circumference of the first transparent plate.

3. The electro-optical module according to claim 1 ,

wherein the frame includes a plate-shaped light shielding portion for forming a border, which overlaps a surface of the first transparent plate to the opposite side of the first substrate.

4. The electro-optical module according to claim 1 ,

wherein a light shielding layer for forming a border is provided on the surface of the first transparent plate on the electro-optical panel side, and

wherein, on a side of the first substrate where the first transparent plate is positioned, an end portion of the frame and a surface of the first transparent plate to the opposite side of the first substrate are positioned in the same plane.

5. The electro-optical module according to claim 1 ,

wherein an adhesive is interposed between the protrusion surfaces of the first substrate and the frame.

6. The electro-optical module according to claim 1 , further comprising:

a light shielding plate that is coupled to the frame and that forms a border by overlapping with a surface of the second transparent plate on a side opposite to the electro-optical panel.

7. The electro-optical module according to claim 1 ,

wherein a light shielding layer for forming a border is provided on the surface of the second transparent plate on the electro-optical panel side, and

wherein, on a side of the second substrate where the second transparent plate is positioned, the end portion of the frame and a surface of the second transparent plate to the opposite side of the second substrate are positioned in the same plane.

8. The electro-optical module according to claim 1 ,

wherein the first substrate is an element substrate that includes a pixel electrode and a switching element provided corresponding to the pixel electrode.

9. The electro-optical module according to claim 8 ,

wherein the electro-optical panel is a liquid crystal panel that includes a liquid crystal layer as an electro-optical material layer.

10. A projection-type display apparatus that is an electronic apparatus including the electro-optical module according to claim 1 , comprising:

a light source portion that emits light which is supplied to the electro-optical module, and