Electro-optical device with cover having a first wall indentation for accommodating control electronics

• US 6,628,070 B2
• Filed: 11/08/2001
• Issued: 09/30/2003
• Est. Priority Date: 11/08/2000
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Kerkhof, Klaas Willem, Van Den Reek, Johannes Nicolaas Johanna Maria
• Primary Examiner(s): Patel, Ashok
• Assistant Examiner(s): Zimmerman, Glenn D.
• Application Number:
  US10/008,213
• Publication Number:
  US 20020067126A1
• Time in Patent Office: 691 Days
• Field of Search: 313/504, 313/509, 313/512, 315/169.3, 427/66
• US Class Current: 313/512
• CPC Class Codes: H01L 25/167 comprising optoelectronic devices, e.g. LED, photodiodes
• 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: H01L 2924/09701 Low temperature co-fired ceramic [LTCC]
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/8423 Metallic sealing arrangements
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 59/871 Self-supporting sealing arrangements
• CPC Class Codes: H10K 59/8721 Metallic sealing arrangements
• CPC Class Codes: H10K 59/874 including getter material or desiccant
• CPC Class Codes: Y10T 428/23 Sheet including cover or casing

Abstract

An electro-optical device comprises a stack (2) of layers on a substrate (1), which stack of layers includes an organic luminescent layer (5) sandwiched between electrode layers (3, 4). A hollow cover (10) is provided over the stack (2) and connected to the substrate (1) in a gastight manner. A water getter (12) is accommodated in the cover (10) so as to abut against a wall (11), which extends along the stack (2). The wall (11) has an indentation (13) accommodating control electronics (14) used to operate the device. The control electronics (14) may be connected to the device by way of a flexible toil (15) having conductor tracks (16), and fixed in the indentation (13) by way of an adhesive (17).

Claims

1. An electro-optical device comprising:

a light-transmitting substrate (1);

a stack (2) of layers on the substrate (1), which stack comprises a first, light-transmitting electrode layer (3) near the substrate (1), a second electrode layer (4) and an organic electroluminescent layer (5) between the first (3) and the second electrode layer (4);

a hollow cover (10) placed over the stack (2), which cover is connected to the substrate (1) in a gastight manner and has a first wall (11) extending along the stack (2); and

a water-binding getter (12) accommodated in the cover (10) so as to abut against the first wall (11),

characterized in that the first wall (11) of the cover (10) is provided with an indentation (13), wherein control electronics (14) is accommodated so as to be electrically connected to the first electrode (3) and the second electrode (4).

2. An electro-optical device as claimed in claim 1, characterized in that the cover (10) is made of a metal.

3. An electro-optical device as claimed in claim 1, characterized in that the control electronics (14) is fixed in the indentation (13) by means of an adhesive (17).

4. An electro-optical device as claimed in claim 2, characterized in that the cover (10) is connected to the substrate (1) by means of a sealing agent (6) wherein electrically insulating powder is dispersed.

5. An electro-optical device comprising:

a light-transmitting substrate (1);

a stack (2) of layers on the substrate (1), which stack comprises a first, light-transmitting electrode layer (3) near the substrate (1), a second electrode layer (4) and an organic electroluminescent layer (5) between the first (3) and the second electrode layer (4);

a hollow cover (10) placed over the stack (2), which cover is connected to the substrate (1) in a gastight manner and has a first wall (11) extending along the stack (2); and

a water-binding getter (12) accommodated in the cover (10) so as to abut against the first wall (11), wherein the first wall (11) of the cover (10) is provided with an indentation (13) in which control electronics (14) are accommodated so as to be electrically connected to the first electrode (3) and the second electrode (4), and the control electronics (14) are situated on a flexible foil (15) with conductor tracks (16), which connect the control electronics (14) to the first electrode layer (3) and the second electrode layer (4).