Unlock instant, AI-driven research and patent intelligence for your innovation.

Organic electroluminescent device and lighting apparatus

A technology of electroluminescent devices and lighting devices, which can be applied to electric lighting devices with built-in batteries, lighting devices, electroluminescent light sources, etc., and can solve problems such as unrealistic applications

Inactive Publication Date: 2013-09-25
KK TOSHIBA
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In relation to organic electroluminescent devices, due to their thinness, light weight, and planar light emission, some applications are expected to be hitherto unrealizable with existing lighting devices and / or light sources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic electroluminescent device and lighting apparatus
  • Organic electroluminescent device and lighting apparatus
  • Organic electroluminescent device and lighting apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example ）

[0023] figure 1 is a schematic cross-sectional view showing the configuration of the organic electroluminescence device according to the first embodiment.

[0024] figure 2 is a schematic plan view showing the configuration of a part of the organic electroluminescence device according to the first embodiment. figure 1 is along figure 2 The cross-sectional view taken by the line A1-A2.

[0025] Such as figure 1 with figure 2 As shown, the organic electroluminescent device 110 includes a first electrode 10 , a plurality of second electrodes 20 and an organic light emitting layer 40 .

[0026] The first electrode 10 has a first main surface 10a and a second main surface 10b. The second main surface 10b is the opposite face to the first main surface 10a. The first electrode 10 is light-transmissive. For example, the first electrode 10 is a transparent electrode. The first major surface 10a is substantially parallel to the second major surface 10b.

[0027] Here, a dir...

no. 2 example ）

[0146] Figure 12 is a schematic diagram showing the configuration of the lighting device according to the second embodiment. Such as Figure 12 As shown, the lighting device 210 according to this embodiment includes the organic electroluminescent device (for example, the organic electroluminescent device 110 ) according to the first embodiment and a power supply unit 201 .

[0147] The power supply unit 201 is electrically connected to the first electrode 10 and the second electrode 20 . The power supply unit 201 supplies current to the organic light emitting layer 40 through the first electrode 10 and the second electrode 20 . In the case of using the lighting device 210 according to the present embodiment, it is possible to provide a see-through lighting device in which the pattern shape of the second electrode 20 is difficult to be recognized and a background image is easily seen.

[0148] According to the present embodiment, a light-transmitting organic electroluminesc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an organic electroluminescent device and a lighting apparatus. According to one embodiment, the organic electroluminescent device includes a first electrode, a plurality of second electrodes and an organic light-emitting layer. The first electrode includes a first major surface and is optical transparency. The second electrodes extend in a first direction parallel to the first major surface and are separated from each other in a second direction parallel to the first major surface and perpendicular to the first direction. An optical transmittance of the second electrodes is lower than an optical transmittance of the first electrode. A distance along the second direction between a line extending in the first direction and a side surface of each of the second electrodes continuously increases and decreases along the first direction. The side surface is unparallel to the first major surface. The organic light-emitting layer is provided between the first electrode and the second electrodes.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims the benefit of priority from prior Japanese Patent Application No. 2012-067199 filed on March 23, 2012; the entire contents of which are hereby incorporated by reference. technical field [0003] Embodiments described herein generally relate to organic electroluminescent devices and lighting devices. Background technique [0004] In recent years, organic electroluminescent devices have attracted a lot of attention for their use in planar light sources and the like. In an organic electroluminescent device, an organic thin film is disposed between two electrodes. When a voltage is applied to the organic film, electrons and holes are injected into the organic thin film and recombine in the organic thin film, thereby generating excitons. The electroluminescence that occurs when the aforementioned excitons undergo radiative deexcitation is exploited. [0005] In connection with org...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52H01L51/50H05B33/12
CPCH10K59/121H10K59/805H10K59/80516H10K59/80521H10K50/115H10K2102/331H10K50/805H10K50/814H10K50/822F21L4/00
Inventor 杉崎知子加藤大望杉启司小野富男真常泰水野幸民天野昌朗泽部智明米原健矢榎本信太郎
Owner KK TOSHIBA