Electro-optical device and electronic apparatus

• US 6,833,900 B2
• Filed: 02/08/2002
• Issued: 12/21/2004
• Est. Priority Date: 02/16/2001
• Status: Expired due to Term

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Aruga, Yasuhito
• Primary Examiner(s): Parker, Kenneth
• Application Number:
  US10/067,842
• Publication Number:
  US 20020135293A1
• Time in Patent Office: 1,047 Days
• Field of Search: 349/152, 349/151, 349/149
• US Class Current: 349/149
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals

Abstract

In a liquid crystal display that includes a second substrate that supports a liquid crystal and data lines formed on the surface of the second substrate, a third insulating layer that covers the data lines is formed on the surface of the second substrate. On the surface of the third insulating layer, chip connecting wiring is formed over a covered region covered with a sealing material and the liquid crystal and the region other than the covered region. By connecting the chip connecting wiring to the data lines via contact holes formed within the covered region of the third insulating layer, corrosion of the wiring formed on the substrate is inhibited.

Claims

1. An electro-optical device, comprising:

an electro-optical material;

a substrate that supports the electro-optical material;

a first wiring formed over a surface of the substrate;

an insulating layer that covers the first wiring, the insulating layer being formed over the surface of the substrate; and

a second wiring formed over a first region of the insulating layer that includes a region overlapping a region in which the electro-optical material is formed, and a second region which corresponds to a remaining region other than the first region of the insulating layer, the second wiring being connected to the first wiring via a plurality of contact holes formed within the first region of the insulating layer, wherein

the insulating layer further includes a mounting region overlaid with an electronic component mounted on the surface of the insulating layer, and the second wiring is connected to the first wiring via a contact hole formed in the mounting region of the insulating layer.

2. The electro-optical device according to claim 1, further including a counter substrate, the electro-optical material being sandwiched between the substrate and the counter substrate, a sealing material being disposed between the substrate and the counter substrate,

the first region including a region of the insulating layer which faces the sealing material.

3. The electro-optical device according to claim 1, the electronic component being an integrated circuit that includes an output terminal connected to the second wiring.

4. The electro-optical device according to claim 1, the electronic component being a flexible substrate that includes a base having flexibility and a wiring formed on the surface of the base, the wiring being connected to the second wiring.

5. The electro-optical device according to claim 1, the first wiring including at least one of an elemental metal and an alloy, and the second wiring including a conductive oxide.

6. The electro-optical device according to claim 1, further including a pixel electrode that applies a voltage to the electro-optical material, the second wiring and the pixel electrode being formed of the same layer.

7. An electronic apparatus, comprising:

the electro-optical device according to claim 1.

8. The electro-optical device according to claim 1, wherein the plurality of contact holes are formed in a line over the first wiring.

9. The electro-optical device according to claim 1, wherein a part of the first wiring is formed overlaid with an electronic component.

10. The electro-optical device according to claim 1, further including a counter substrate and a sealing material between the substrate and the counter substrate, wherein at least one of the plurality of contact holes is formed at a region which faces the sealing material.

11. The electro-optical device according to claim 1, wherein the first wiring is a scanning line.