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Display apparatus and image pickup apparatus

一种显示装置、发光层的技术，应用在有机半导体器件、电固体器件、半导体器件等方向，能够解决金属掩模制备和维护困难等问题

Active Publication Date: 2013-03-13
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the proportion of the metal mask cost in the production cost of the display device has increased, whereby preparation and maintenance of the metal mask have become difficult

Method used

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  • Display apparatus and image pickup apparatus
  • Display apparatus and image pickup apparatus
  • Display apparatus and image pickup apparatus

Examples

Experimental program
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Embodiment

[0060] Embodiments according to aspects of the present invention are described below. Materials and element configurations used in the embodiments are just examples and the present invention is not limited to them.

[0061] A display device is prepared, which has Figure 1B The configuration shown in , in addition, there is a configuration in which an electron injection layer is provided between the electron transport layer 14 and the cathode 15 .

[0062] A pixel circuit is formed on a glass substrate by low-temperature polysilicon TFTs. An interlayer insulating film made of SiN and a planarizing film made of acrylic resin are sequentially formed thereon so that Figure 1B Substrate 10 shown in . Anode 11 was formed by laminating silver (film thickness 200 nm) serving as a metal film and IZO (film thickness 20 nm) serving as a transparent conductive layer on substrate 10 , and UV / ozone cleaning was performed.

[0063] The above-mentioned substrate provided with electrodes w...

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PUM

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Abstract

A first light-emitting layer of a first organic electroluminescent element is disposed in common to a second organic electroluminescent element, a second light-emitting layer of the second organic electroluminescent element is disposed in contact with the first light-emitting layer and in the cathode side, and the first light-emitting layer is a light-emitting layer having an electron trapping property.

Description

technical field [0001] The present invention relates to a display device provided with an organic electroluminescence element. Background technique [0002] An organic electroluminescent element has a configuration in which an anode, a light-emitting layer containing an organic compound, and a cathode are laminated. Regarding a display device including organic electroluminescence elements of three colors, ie, red, green, and blue, each color light emitting layer is vacuum-evaporated by using a metal mask for patterning according to the pixel shape of each color. [0003] In recent years, as the precision of display devices has been improved, the size of pixels of each color has been reduced, and a high degree of precision has been required with respect to metal masks used for patterning according to pixel shapes. Therefore, the ratio of the cost of the metal mask in the production cost of the display device has increased, whereby preparation and maintenance of the metal mas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/50
CPCH01L51/504H01L27/3211H01L2251/552H10K59/35H10K50/13H10K2101/30
Inventor 高谷格
Owner CANON KK
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