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Organic EL display panel

一种电致发光显示、显示面板的技术，应用在电致发光光源、电光源、电路等方向，能够解决难以制造像素数、大显示面板等问题

Inactive Publication Date: 2008-07-09
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the existing microcavity method, it is necessary to change the optical wavelength of the microresonator for each light-emitting element of multiple colors, and there is a problem that it is difficult to manufacture a display panel with a large number of pixels

Method used

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  • Organic EL display panel
  • Organic EL display panel
  • Organic EL display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Hereinafter, an embodiment of the present invention will be described based on the drawings.

[0047] FIG. 1 is a cross-sectional view showing a light-emitting region of one pixel and a partial configuration of a driving TFT (thin film transistor: thin film transistor). In addition, a plurality of TFTs are provided in each pixel, and the driving TFT is a TFT for controlling the supply of electric current from the power supply line to the organic EL element. A buffer layer 11 made of laminated SiN and SiO2 is formed on the entire surface of the glass substrate 30, and an active layer 22 of polysilicon is formed on the buffer layer 11 in a predetermined region (a region where TFTs are formed).

[0048] A gate insulating film 13 is formed covering the active layer 22 and the buffer layer 11 on the entire surface. The gate insulating film 13 is formed by laminating SiO 2 and SiN, for example, and a gate electrode 24 of Cr (chrome), for example, is formed on the channel reg...

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Abstract

Organic EL panel. To equalize luminous efficiency in respective colors. A semi-transparent film (69) is disposed on the lower side of a transparent electrode (61) of each organic EL element of a specific color; and the distance from the upper surface of the semi-transparent film (69) to the undersurface of an opposite electrode (66) functioning as a reflecting layer is set at a value by which a space between them acts as a minute resonator for selecting light having a specific wavelength. The semi-transparent film (69) is omitted in each organic EL element having another color. Therefore, luminous efficiency of the organic EL element of a color originally having low luminous efficiency can be enhanced.

Description

technical field [0001] The present invention relates to arranging a plurality of organic EL (Electro Luminescence: electroluminescence) components to form an organic EL display panel, and the organic EL component has an organic layer between the first and second electrodes, and passes through the first and second electrodes to form an organic EL display panel. A voltage is applied between the electrodes to pass a current through the organic layer to generate light. Background technique [0002] Conventionally, organic electroluminescent (Electro Luminescence: hereinafter referred to as EL) displays have attracted attention as a display of the next-generation flat-panel display replacing the liquid crystal display. In this display panel (hereinafter referred to as "organic EL display panel"), the light emission color of each pixel can be determined by changing the light emitting material of the organic light emitting layer used for each pixel. Therefore, by making each pixel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/14H05B33/22H05B33/26H05B33/12H05B33/02H05B33/24G09F9/30H01L27/32H01L51/50H01L51/52H05B33/00H05B33/28
CPCH01L27/3244H01L27/322H01L27/3211H01L51/5265H10K59/35H10K59/38H10K59/12H10K59/876H05B33/22H10K50/852
Inventor 西川龙司小村哲司
Owner SANYO ELECTRIC CO LTD