Large area display and method of manufacturing same

• US 7,286,120 B2
• Filed: 11/12/2003
• Issued: 10/23/2007
• Est. Priority Date: 11/12/2003
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Van Brocklin, Andrew L., Anderson, Daryl E.
• Primary Examiner(s): DHARIA, PRABODH M
• Application Number:
  US10/712,229
• Publication Number:
  US 20050099411A1
• Time in Patent Office: 1,441 Days
• Field of Search: 345/204, 345/107, 345/55, 345/74, 345/77, 345/80, 345/205, 345/206, 345/211, 345/212, 345/214, 345/36, 345/1.1, 345/76, 345/43, 345/213, 385/4, 349/15, 349/27, 349/42, 349/115, 349/129, 348/47, 348/56, 348/46, 313/498, 313/503, 341/115, 315/169.1
• US Class Current: 345/204
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/13336 Combining plural substrates to produce large-area displays, e.g. tiled displays
• CPC Class Codes: G02F 2201/42 Arrangements for providing conduction through an insulating substrate
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/17 Passive-matrix OLED displays
• CPC Class Codes: H10K 59/18 Tiled displays

Abstract

An embodiment of a large area display according to the present invention may include a pixel layer including display elements, a connection layer, drivers in communication with the pixel layer and the connection layer, the drivers configured for driving pixels in the pixel layer and configured for communicating through the connection layer. The embodiment of a large area display may further comprise a laminate formed of the pixel layer, the connection layer and drivers. Other embodiments of the present invention include a method and apparatus for manufacturing a large area display.

Claims

1. A large area display, comprising:

a pixel layer having a repeating pattern of sub-displays formed on a continuous pixel layer sheet, the subdisplays including display elements;

a plurality of drivers, each driver in communication with a corresponding one of the sub-displays and configured for driving the display elements in the sub-display; and

a connection layer in communication with the drivers having a continuous sheet with conductive traces for distributing power and data to the drivers wherein the pixel layer, the connection layer and the drivers are laminated together to form the large area display.

2. The large area display according to claim 1, wherein the drivers are laminated between the pixel layer and the connection layer.

3. The large area display according to claim 1, wherein the display elements comprises at least one of liquid crystal display (LCD), light emitting diode (LED), organic LED (OLED), polymer light emitting device (PLED), electroluminescent (EL), electrophoretic display, electrochromic display, electrowetting, gas plasma and fiber plasma.

4. The large area display according to claim 1, wherein the pixel layer comprises an active matrix display.

5. The large area display according to claim 1, wherein the pixel layer comprises a passive matrix display.

6. The large area display according to claim 1, wherein the pixel layer comprises at least one transistor per pixel.

7. The large area display according to claim 6, wherein each of the at least one transistors comprises a thin film transistor (TFT).

8. The large area display according to claim 1, wherein the connection layer comprises a first conductive layer for providing power and ground connections to driver electronics and a second conductive layer for providing serial data connectivity to an input/output (I/O) connector.

9. The large area display according to claim 1, wherein the connection layer comprises low voltage differential signaling (LVDS) logic for data transmission.

10. The large area display according to claim 1, wherein the drivers comprise complementary metal on semiconductor (CMOS) circuitry on silicon or glass substrates.

11. The large area display according to claim 1, wherein the drivers comprise complementary metal on semiconductor (CMOS) circuitry on plastic substrates.

12. The large area display according to claim 1, wherein the drivers further comprise:

serial data input for receiving display data; and

serial data output for sensing and testing.

13. The large area display according to claim 1, further comprising an input/output (I/O) connector in communication with the connection layer configured for external communication.