Light emitting device and electronic apparatus

A technology for light-emitting devices and light-emitting elements, applied in lighting devices, electroluminescent light sources, light sources, etc., can solve the problems of inability to improve light utilization efficiency and limited efficiency, and achieve high quality and reduce external light reflection effects.

Active Publication Date: 2009-04-22
ELEMENT CAPITAL COMMERCIAL CO PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under this condition, there is a limit to improving the efficiency of the light emitted in the light emission of the organic light-emitting element.
In Patent Document 2, it is described that an organic light-emitting element is provided with a semi-transparent reflective electrode and a reflective electrode, and has a resonator structure in which light reciprocates between these electrodes to perform optical resonance. However, for example, light In the structure where the electrodes go back and forth, due to inappropriate optical factors such as the optical distance, the light does not resonate, and the utilization efficiency of light cannot be improved.

Method used

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  • Light emitting device and electronic apparatus
  • Light emitting device and electronic apparatus
  • Light emitting device and electronic apparatus

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Embodiment Construction

[0054] Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In addition, in the drawings, the ratio of the dimensions of each part is appropriately different from the real thing.

[0055] Cross-sectional structure of an organic EL device

[0056] figure 1 , is a schematic cross-sectional view showing an organic EL device 1 as a light-emitting device according to an embodiment of the present invention. The organic EL device 1 includes a light emitting panel 3 and a color filter panel 30 .

[0057] The light emitting panel 3 has light emitting elements 2 ( 2R, 2G, 2B) as a plurality of pixels as shown in the figure. The organic EL device 1 of this embodiment is used as a full-color image display device. The light emitting element 2R is a red light emitting element, the light emitting element 2G is a green light emitting element, and the light emitting element 2B is a blue light emitting element. exist figure 1 In the...

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Abstract

The invention provides a light emitting device and an electronic apparatus which can reduce extraneous light reflection. The light emitting device not only has a resonator constitution including a light emitting source element, a reflection layer and a translucent semi-reflection layer, but also has a multicolor optical filter, wherein, it is preferable that the translucent semi-reflection layer is made of a material such as MgAg having a reflective index of 1 or more. In addition, it is preferable that the optical distance d1 between the reflection layer and the translucent semi-reflection layer satisfies the fitting condition for reducing extraneous light reflection.

Description

technical field [0001] The present invention relates to a light-emitting device and electronic equipment that emit light by electroluminescence. Background technique [0002] OLED (Organic Light Emitting Diode), that is, organic EL (Electro Luminescent) element has attracted much attention as a thin and light-weight light source, and an image display device equipped with a plurality of organic EL elements has been developed. An organic EL element has a structure in which at least one organic thin film made of an organic material is sandwiched between a pixel electrode and a counter electrode. [0003] In the field of organic EL elements, there is known a technique for enhancing light of a specific wavelength in emitted light by utilizing amplification interference, that is, resonance (for example, Patent Document 1). In this technique, the color purity of the emitted light color can be improved, or the efficiency of emitted light for emission can be improved. [0004] In a...

Claims

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Application Information

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IPC IPC(8): H05B33/22H05B33/24
Inventor 小林英和
Owner ELEMENT CAPITAL COMMERCIAL CO PTE LTD
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