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Organic compound, light-emitting element, light-emitting device, electronic apparatus, illumination device, and electronic device

A technology of organic compounds and light-emitting elements, applied in the fields of programs, products or compositions, machines, lighting devices and electronic devices, to achieve the effects of low power consumption and high luminous efficiency

Pending Publication Date: 2020-12-29
SEMICON ENERGY LAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Compared with light-emitting elements with existing structures, light-emitting elements with this structure can have higher light extraction efficiency and external quantum efficiency, but it is difficult to integrate this light-emitting element without adversely affecting the important characteristics of other light-emitting elements. A layer with a low refractive index is formed inside the EL layer

Method used

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  • Organic compound, light-emitting element, light-emitting device, electronic apparatus, illumination device, and electronic device
  • Organic compound, light-emitting element, light-emitting device, electronic apparatus, illumination device, and electronic device
  • Organic compound, light-emitting element, light-emitting device, electronic apparatus, illumination device, and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0110]As one of materials with a low refractive index among organic compounds having carrier transport properties that can be used in organic EL elements, 1,1-bis-(4-bis(4-methyl-phenyl)-ammonia is known -Phenyl)-cyclohexane (abbreviation: TAPC). By using a material with a low refractive index for the EL layer, a light-emitting element with high external quantum efficiency can be obtained. Therefore, it can be expected that a light-emitting element with good external quantum efficiency can be obtained by using TAPC. On the other hand, TAPC has the problem of being detrimental to reliability due to its low heat resistance.

[0111]As one of the methods for obtaining a hole transport material with high heat resistance and good reliability, unsaturated hydrocarbon groups, especially cyclic unsaturated hydrocarbon groups, can be introduced into the molecule.

[0112]On the other hand, in order to obtain a material with a low refractive index, it is preferable to introduce a substituent having...

Embodiment approach 2

[0173]Fig. 1 shows a view of a light-emitting element according to one embodiment of the present invention. The light-emitting element of one embodiment of the present invention includes a first electrode 101, a second electrode 102, and an EL layer 103, and the organic compound described in Embodiment 1 is used for the EL layer.

[0174]The EL layer 103 includes a light emitting layer 113, and may also include a hole injection layer 111 and / or a hole transport layer 112. The light-emitting layer 113 contains a light-emitting material, and the light-emitting element of one embodiment of the present invention obtains light emission from the light-emitting material. The light-emitting layer 113 may also include a host material and other materials. The organic compound of one aspect of the present invention shown in Embodiment Mode 1 may be contained in any of the light-emitting layer 113, the hole transport layer 112, and the hole injection layer 111.

[0175]Note that although FIG. 1 shows...

Embodiment approach 3

[0235]In this embodiment mode, a light-emitting device using the light-emitting element described in Embodiment Mode 2 will be described.

[0236]In this embodiment mode, a light-emitting device manufactured using the light-emitting element shown in Embodiment Mode 2 will be described with reference to FIG. 2. note,Figure 2A Is a top view showing the light emitting device, andFigure 2B Is alongFigure 2A A cross-sectional view cut by line A-B and line C-D in the middle. This light-emitting device includes a drive circuit section (source line drive circuit) 601, a pixel section 602, and a drive circuit section (gate line drive circuit) 603 indicated by a broken line as a unit for controlling the light emission of the light-emitting element. In addition, reference numeral 604 is a sealing substrate, reference numeral 605 is a sealing material, and the inner side surrounded by the sealing material 605 is a space 607.

[0237]Note that the guide wiring 608 is a wiring for transmitting signals ...

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Abstract

Provided is a novel organic compound. Provided is a novel organic compound having carrier transport properties. Provided is a novel organic compound having hole transport properties. Provided is an organic compound having a small refractive index. Provided is an organic compound having a small refractive index as well as carrier transport properties. Provided is an organic compound having a smallrefractive index as well as hole transport properties. Provided are organic compounds represented by general formula (G1).

Description

Technical field[0001]One aspect of the present invention relates to an organic compound, a light-emitting element, a display module, a lighting module, a display device, a light-emitting device, an electronic device, a lighting device, and an electronic device. Note that one aspect of the present invention is not limited to the above technical field. The technical field of one aspect of the invention disclosed in this specification and the like relates to an object, a method, or a manufacturing method. Alternatively, one aspect of the present invention involves a process, machine, manufacturing, or composition of matter. Therefore, more specifically, as examples of the technical field of one aspect of the present invention disclosed in this specification, semiconductor devices, display devices, liquid crystal display devices, light-emitting devices, lighting devices, power storage devices, storage devices, Imaging devices, their driving methods, and their manufacturing methods.Backg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C211/54H01L51/50
CPCH10K85/631H10K50/15H10K50/17C07C211/54C07C2601/14C09K11/06C07C2601/20C07C2601/18H10K59/12H10K85/342H10K50/156H10K2101/90H10K59/876H05B33/14
Inventor 久保田朋广渡部刚吉濑尾哲史大泽信晴
Owner SEMICON ENERGY LAB CO LTD
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