EL display panel and electronic apparatus

• US 20090262047A1
• Filed: 02/23/2009
• Published: 10/22/2009
• Est. Priority Date: 03/23/2008
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Yamamoto, Tetsuro, Uchino, Katsuhide, Yamashita, Junichi
• Application Number:
  US12/379,477
• Publication Number:
  US 20090262047A1
• Time in Patent Office: Days
• US Class Current: 345/76
• CPC Class Codes: H10K 59/1213 the pixel elements being TFTs
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/351 comprising more than three subpixels, e.g. red-green-blue-white [RGBW]
• CPC Class Codes: H10K 59/353 characterised by the geometrical arrangement of the RGB subpixels

Abstract

Disclosed herein is an electroluminescence display panel including pixel circuits corresponding to an active-matrix drive system, the electroluminescence display panel including a structure configured to include first light-emitting areas corresponding to an emission color that is strongest in a characteristic of changing a threshold voltage of a thin film transistor and second light-emitting areas that correspond to another emission color and are each disposed between the first light-emitting areas, wherein a sampling transistor in each of the pixel circuits for driving the second light-emitting areas is disposed in an area corresponding to a range of one fourth to three fourths of a length from a peripheral edge of one of two first light-emitting areas that are adjacent to each other with intermediary of the second light-emitting area of the sampling transistor to a peripheral edge of the other of the two first light-emitting areas.

Claims

1. An electroluminescence display panel including pixel circuits corresponding to an active-matrix drive system, the electroluminescence display panel comprising

a structure configured to include first light-emitting areas corresponding to an emission color that is strongest in a characteristic of changing a threshold voltage of a thin film transistor and second light-emitting areas that correspond to another emission color and are each disposed between the first light-emitting areas, wherein

a sampling transistor in each of the pixel circuits for driving the second light-emitting areas is disposed in an area corresponding to a range of one fourth to three fourths of a length from a peripheral edge of one of two first light-emitting areas that are adjacent to each other with intermediary of the second light-emitting area of the sampling transistor to a peripheral edge of the other of the two first light-emitting areas.

2. The electroluminescence display panel according to claim 1, wherein

if the first light-emitting areas are adjacent to each other in the panel, a sampling transistor in each of the pixel circuits for driving the first light-emitting areas is disposed in an area corresponding to a range of one fourth to three fourths of a length of the first light-emitting area of the sampling transistor along a direction along which the first light-emitting areas are adjacent to each other.

3. The electroluminescence display panel according to claim 1, wherein

the first light-emitting area is a light-emitting area corresponding to blue.

4. An electronic apparatus comprising:

an electroluminescence display panel configured to include pixel circuits corresponding to an active-matrix drive system and have a structure that includes first light-emitting areas corresponding to an emission color that is strongest in a characteristic of changing a threshold voltage of a thin film transistor included in the pixel circuit and second light-emitting areas that correspond to another emission color and are each disposed between the first light-emitting areas, a sampling transistor in each of the pixel circuits for driving the second light-emitting areas being disposed in an area corresponding to a range of one fourth to three fourths of a length from a peripheral edge of one of two first light-emitting areas that are adjacent to each other with intermediary of the second light-emitting area to a peripheral edge of the other of the two first light-emitting areas;

a system controller configured to control operation of an entire system; and

an operation input unit configured to accept an operation input to the system controller.