Display unit

• US 9,123,666 B2
• Filed: 07/24/2014
• Issued: 09/01/2015
• Est. Priority Date: 09/19/2003
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kashiwabara, Mitsuhiro, Yamada, Jiro, Yokoyama, Seiichi, Hanawa, Kohji
• Primary Examiner(s): GEBREMARIAM, SAMUEL A
• Application Number:
  US14/339,987
• Publication Number:
  US 20140332832A1
• Time in Patent Office: 404 Days
• Field of Search: 257/40, 257/59, 257/72, 257/79
• US Class Current: 1/1
• CPC Class Codes: H01L 27/153 in a repetitive configuration, e.g. LED bars
• CPC Class Codes: H10K 2102/3026 Top emission
• CPC Class Codes: H10K 2102/351 Thickness
• CPC Class Codes: H10K 50/805 Electrodes
• CPC Class Codes: H10K 50/81 Anodes
• CPC Class Codes: H10K 50/813 characterised by their shape
• CPC Class Codes: H10K 50/818 Reflective anodes, e.g. ITO combined with thick metallic layers
• CPC Class Codes: H10K 50/82 Cathodes
• CPC Class Codes: H10K 50/824 combined with auxiliary electrodes
• CPC Class Codes: H10K 50/828 Transparent cathodes, e.g. comprising thin metal layers
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/852 comprising a resonant cavity structure, e.g. Bragg reflector pair
• CPC Class Codes: H10K 50/856 comprising reflective means
• 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 59/1315 comprising structures specially adapted for lowering the resistance
• CPC Class Codes: H10K 59/30 Devices specially adapted for multicolour light emission
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/805 Electrodes

Abstract

A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.

Claims

1. A display unit comprising

a plurality of light emitting devices in which a function layer including at least a light emitting layer is sandwiched between a mirror made of a light reflective material and a light semi-transmissive half mirror, and which have a resonator structure for resonating light emitted in the light emitting layer by using a space between the mirror and the light semi-transmissive half mirror as a resonant section and extracting the light from the light semi-transmissive half mirror side are arranged on a substrate,

wherein the light semi-transmissive half mirror includes silver (Ag) and ytterbium (Yb).

2. The display unit according to claim 1, wherein the display unit is a bottom emission type display.

3. The display unit according to claim 1, wherein the mirror and the light semi-transmissive half mirror are used as an electrode.

4. The display unit according to claim 1, wherein the mirror and the light semi-transmissive half mirror are used as an electrode of the light emitting device.

5. A display unit comprising

a plurality of light emitting devices in which a function layer including at least a light emitting layer is sandwiched between a mirror made of a light reflective material and a light semi-transmissive half mirror, and which have a resonator structure for resonating light emitted in the light emitting layer by using a space between the mirror and the light semi-transmissive half mirror as a resonant section and extracting the light from the light semi-transmissive half mirror side are arranged on a substrate,

wherein the light semi-transmissive half mirror includes silver (Ag) and ytterbium (Yb),

wherein the space is different according to color emitted from the light emitting device.