Display device comprising a conductive barrier body in direct contact with a sealing material

• US 8,040,059 B2
• Filed: 08/25/2004
• Issued: 10/18/2011
• Est. Priority Date: 08/29/2003
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Watanabe, Yasuko, Imai, Keitaro, Anzai, Aya
• Primary Examiner(s): Ton; Toan
• Assistant Examiner(s): Hanley; Britt
• Application Number:
  US10/569,528
• Publication Number:
  US 20070046178A1
• Time in Patent Office: 2,610 Days
• Field of Search: None
• US Class Current: 313/512
• CPC Class Codes: H01L 23/564 Details not otherwise provided for, e.g. protection against moisture getters H01L23/26
• CPC Class Codes: H01L 27/1222 with a particular composition, shape or crystalline structure of the active layer
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/124 Insulating layers formed between TFT elements and OLED elements
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 71/135 using ink-jet printing

Abstract

It is an object of the present invention to provide a display device preventing the external invasion of water and/or oxygen and preventing the deterioration of a luminous element due to these invading substances and to provide a production method including simple production steps for producing the display device. The invention provides a display device having a sealing material on the rim of an exposed interlayer insulator for preventing the invasion of water and/or oxygen from the interlayer insulator. Further, the invention provides a display device having a barrier body on an exposed interlayer insulator for preventing the invasion of water and/or oxygen from the interlayer insulator. Furthermore, the application of droplet discharge technique in production steps for producing the display device can eliminate a photolithography step such as exposing and developing. Thus, a method of producing a display device having an improved yield is provided.

Claims

1. A display device comprising:

a display section comprising a thin film transistor and a luminous element over a first substrate;

a first interlayer insulator formed between the thin film transistor and the luminous element, wherein the first interlayer insulator comprises a resin material;

a barrier body covering an end portion of the first interlayer insulator, the barrier body comprising a conductive material;

a protective film formed over the luminous element, the protective film comprising an insulating material;

a second substrate opposed to the first substrate; and

a sealing material interposed between the first substrate and the second substrate,

wherein the sealing material is in direct contact with the barrier body,

wherein the barrier body is interposed between the sealing material and the first interlayer insulator,

wherein the sealing material is in direct contact with the barrier body at a portion, and

wherein the portion is overlapped with the first interlayer insulator.

3. An electronic apparatus comprising the display device according to any one of claims 1 and 2,

wherein the electronic apparatus is selected from the group consisting of a video camera, a digital camera, a goggle type display, a navigation system, an audio reproducing device, a notebook personal computer, a television, a game machine, a mobile computer, a mobile phone, a portable game machine, an electronic book, and an image reproducing device.

4. The display device according to claim 1,

wherein the resin material is a siloxane polymer.

6. The display device according to claim 1,

wherein the barrier body and the protective film are separated from each other.

9. The display device according to claim 1,

wherein the barrier body covers a side surface of the first interlayer insulator.

2. A display device comprising:

a display section comprising a luminous element and a thin film transistor formed over a first substrate;

a driver circuit over the first substrate;

a first interlayer insulator formed between the thin film transistor and the luminous element, wherein the first interlayer insulator comprises a resin material;

a run wire formed over the first interlayer insulator and disposed outside the display section;

a barrier body covering the run wire and an end portion of the first interlayer insulator, the barrier body comprising a conductive material;

a protective film formed over the luminous element, the protective film comprising an insulating material;

a second substrate opposed to the first substrate; and

a sealing material interposed between the first substrate and the second substrate,

wherein the sealing material is in direct contact with the barrier body.

5. The display device according to claim 2,

wherein the resin material is a siloxane polymer.

7. The display device according to claim 2,

wherein the barrier body and the protective film are separated from each other.

8. The display device according to claim 2,

wherein the barrier body and the run wire are in direct contact with each other.

10. The display device according to claim 2,

wherein the barrier body covers a side surface of the first interlayer insulator.