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Electroluminescence device, method of manufacturing electroluminescence device, and electronic apparatus

An electroluminescence and manufacturing method technology, applied in electroluminescence light sources, lighting devices, electro-solid devices, etc., can solve the problems of reduced productivity, difficult step management, long etching time, etc., and achieves suppression of increased times and step management easy, avoid side effects

Active Publication Date: 2007-01-17
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the etching time of each step is different, not only the step management becomes difficult, but also a long etching time occurs, which causes problems such as side edges
[0009] In addition, as described above, the ITO film is formed through multiple steps, the steps become complicated, and there is a problem that the productivity decreases.

Method used

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  • Electroluminescence device, method of manufacturing electroluminescence device, and electronic apparatus
  • Electroluminescence device, method of manufacturing electroluminescence device, and electronic apparatus
  • Electroluminescence device, method of manufacturing electroluminescence device, and electronic apparatus

Examples

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no. 1 approach

[0099] (Basic structure of EL device)

[0100] figure 1 It is a cross-sectional view schematically showing the structure of the organic EL device (EL device) according to the first embodiment of the present invention.

[0101] exist figure 1 Among them, the organic EL device of this embodiment is a top emission type device that emits display light to the side opposite to the substrate 11 side when viewed from the light emitting layer 14 . The organic EL device 1 has pixels 100(R), 100(G), and 100(B). The pixel 100 (R) emits red (R) light, the pixel 100 (G) emits green (G), and the pixel 100 (B) emits blue (B) light. The organic EL element 10 is formed on each of the pixels 100(R), 100(G), and 100(B).

[0102] The organic EL element 10 has a transparent anode 12 made of ITO, a hole transport layer 13, a light emitting layer 14, an electron transport layer 15, and a layer made of a magnesium-silver alloy, which are sequentially stacked on the upper layer side of a substrate ...

no. 2 approach

[0151] Figure 4 It is a cross-sectional view schematically showing the structure of an organic EL device (EL device) according to a second embodiment of the present invention.

[0152] Figure 4 The organic EL device 1 shown is a top emission type device that emits display light to the side opposite to the substrate 11 side when viewed from the light emitting layer 14 , as in the first embodiment. The organic EL element 10 is formed in each of the red (R) emitting pixel 100 (R), the green (G) emitting pixel 100 (G), and the blue (B) emitting pixel 100 (B). The organic EL element 10 has a transparent anode 12 made of ITO, a hole transport layer 13, a light emitting layer 14, an electron transport layer 15, and a magnesium-silver alloy that are sequentially stacked on the upper layer side of a substrate 11 made of glass. The structure of the cathode layer 16 is semitransparent and semireflective.

[0153] In addition, a reflective layer 19 (total reflection layer) made of al...

Embodiment approach

[0166] In the above-described embodiment, a top emission type that emits display light to the side opposite to the substrate 11 side is described as an example, but the present invention can also be applied to a bottom emission type that emits display light to the substrate side. That is, in the bottom emission type, a semi-transparent and semi-reflective lower layer side reflective layer is formed on the lower layer side of the anode, but if an insulating protective film is formed between the anode and the semi-transparent and semi-reflective lower layer side reflective layer, etching will form In the case of an anode, deterioration of the reflective layer on the lower layer side can be prevented.

[0167] In addition, in the above-mentioned embodiment, there are three layers such as the hole transport layer 13, the light emitting layer 14, and the electron transport layer 15 between the anode 12 and the cathode layer 16, but it is also possible to take a further layer between...

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Abstract

Provided is a method of manufacturing an electroluminescence device, in which a plurality of pixel forming regions is formed on a substrate, a light emitting element, in which an anode having a light transmission property, a light emission function layer including at least a light emitting layer and a cathode are laminated, is provided in each of the plurality of pixel forming regions, the pixel forming regions include a pixel forming region of first color and a pixel forming region of second color different from the first color, and the anode includes a first anode formed in the pixel forming region of the first color with a first thickness and a second anode formed in the pixel forming region of the second color with a second thickness, including: forming a first transparent conductive film in the pixel forming region of the first color with a thickness obtained by subtracting the second thickness from the first thickness; and forming a second transparent conductive film in the pixel forming region of the second color with the second thickness.

Description

[0001] The present invention claims priority to Japanese Patent Application No. 2005-206552 filed on July 15, 2005 and Japanese Patent Application No. 2005-206708 filed on July 15, 2005, the contents of which are incorporated herein. technical field [0002] The present invention relates to an electroluminescent device, a method for manufacturing the electroluminescent device, and an electronic instrument. Background technique [0003] As exposure heads of image forming devices such as display devices used in electronic instruments such as mobile phones, personal computers and PDAs (Personal Digital Assistants), digital copiers and printers, organic electroluminescent devices (EL / Electro Luminescence device, hereinafter referred to as organic Light-emitting devices such as EL devices) are attracting attention. [0004] In such a light-emitting device, as a structure for realizing color display, a structure in which light of various colors is emitted from each pixel by changi...

Claims

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Application Information

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IPC IPC(8): H01L21/82H01L27/32H05B33/26H05B33/10
Inventor 前田强松本友孝
Owner SEIKO EPSON CORP
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