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Displaying body, displaying panel and display

A technology for display panels and display bodies, which is applied to identification devices, lighting devices, static indicators, etc., can solve the problems of manufacturing cost, yield can not be said to be the best, increased manufacturing man-hours, and full utilization, etc. Evaporation of reflective materials, improved efficiency, and low-cost effects

Inactive Publication Date: 2008-01-30
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the conventional reflective slope structure, it cannot be said that the light emitted from the light-emitting layer can be fully utilized.
In addition, in order to construct a reflective slope, introducing a wedge-shaped structure and vapor-depositing metal will increase the manufacturing man-hours compared with a display panel without such a structure, and cannot be said to be the best in terms of manufacturing cost and yield.

Method used

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  • Displaying body, displaying panel and display
  • Displaying body, displaying panel and display
  • Displaying body, displaying panel and display

Examples

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Embodiment Construction

[0039] The present invention will be further described in detail below with reference to the accompanying drawings. FIG. 1 shows a mobile phone as a display device equipped with a display panel of the present invention. The mobile phone 1 of this example adopts a display panel using an organic EL element as a self-luminous element, and a display panel 10a as display data, and emits light L1 from the organic EL element by a driving device 9 composed of a microcomputer or the like. , so that data such as characters and images can be observed by the user 90 .

[0040] FIG. 2 is an enlarged plan view showing a part of the display panel. In addition, FIG. 3 shows a III-III sectional view of FIG. 2 . In the display panel 10a of this example, a display body 19 using organic electroluminescence (organic EL) as a light-emitting layer functions as one pixel, and a plurality of display bodies 19 are arranged in a two-dimensional array or matrix. . The display panel 10a can be driven ...

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Abstract

The invention provides a display panel having high light-extraction efficiency which can be easily produced. The present invention provides a display panel including an emission layer having a light-emitting layer and a transparent member (transmission layer) having recesses, an inclined surface of the recesses acting as a total reflection surface to reflect part of light radiated from the light-emitting layer. The display panel changes the optical path by total reflection, thus having no light-absorption loss and having high light-extraction efficiency. Since there is no need to deposit a reflecting film, it is easy to produce. Thus, a high-intensity display panel can be provided at low cost.

Description

technical field [0001] The present invention relates to a display panel using a self-luminous element such as organic electroluminescence (organic EL) and a method for manufacturing the same. Background technique [0002] In recent years, a display panel using an organic EL element or a display using a plasma display panel (PDP) has been actively developed as a self-luminous flat panel display (FPD). In these display panels, a structure in which a light-emitting layer is arranged between an anode layer and a cathode layer serves as a display body, and functions as a pixel. Moreover, since there is a critical angle at which light does not expose to the outside at the interface between a plurality of thin films constituting the display body, or at the interface (panel surface) between the panel and the outside world, the light emitted from the light-emitting layer is at a critical angle The light incident on a predetermined layer at an angle of 100° or more is enclosed within...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/50H01L51/56H05B33/12H05B33/02G09F9/30G09G3/30H01L27/32H05B33/10
CPCG09G3/30H01J2211/442H01J2209/012G09G2300/0456
Inventor 米窪政敏山内泰介
Owner SEIKO EPSON CORP