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An organic light emitting display device

A light-emitting display device, organic technology, applied in the direction of electric solid device, semiconductor device, semiconductor/solid state device manufacturing, etc. High light rate, the effect of preventing light reflection and light refraction

Active Publication Date: 2018-03-13
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although organic light-emitting diodes have many advantages, they also have their own shortcomings, one of which is the low utilization rate of photons.
The light emitted by the light-emitting layer in the organic light-emitting diode is reflected and refracted by the contact surface between ITO and the glass substrate and the contact surface between the glass substrate and the air. Most of the light cannot escape into the air, resulting in low photon utilization. This situation is serious restrict the development of organic light-emitting diodes
In the prior art, although many technical solutions have been proposed to enhance the light extraction rate of organic light-emitting diodes, most of these methods are complicated in procedure and high in cost.

Method used

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  • An organic light emitting display device
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  • An organic light emitting display device

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Embodiment Construction

[0027] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar units are denoted by the same reference numerals.

[0028] Such as figure 1 Shown is a cross-sectional structure of an organic light-emitting display device of the present invention and a schematic diagram of the direction of light when light refracts on the interface between the first electrode layer 2 and the light extraction layer 9, where θ is The angle formed by the incident light 10 on 2 and the vertical normal...

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Abstract

An organic light -emitting display device of the present invention, including: a transparent glass substrate, contacts the air on one side of the transparent glass substrate, and the other side is the light extraction layer; one light extract layer to form a transparent glass substrate on the side of the transparent glass substrate.It is used to transmit the light emitted by the luminous layer to the transparent glass substrate; the first electrode layer is formed under the surface of the light extract layer, and its surface is flat;On the surface, used for glowing; the second electrode layer is formed under the surface of the luminous layer, the first electrode layer and the second electrode layer are clamped in the middleThe transparent material layer is jagged, and the light refractive index of the light extract layer is greater than the light refractive index of the first electrode layer.The organic light display device of the present invention greatly improves the light extraction rate of organic light -emitting display devices.

Description

【Technical field】 [0001] The invention relates to the field of organic light emitting technology, in particular to an organic light emitting display device. 【Background technique】 [0002] Organic Light-Emitting Diode (OLED) display has become a new generation of display technology, because it can emit light by itself, without backlight, and has simple structure, ultra-thin, fast response, wide viewing angle, low Power consumption and the characteristics of flexible display lamps, coupled with the fact that the investment in its production equipment is much smaller than that of liquid crystal displays (Liquid Crystal Display, LCD), gradually become the main force of the third-generation display devices in the field of display technology. [0003] Although organic light-emitting diodes have many advantages, they also have their own shortcomings, one of which is the low utilization rate of photons. The light emitted by the light-emitting layer in the organic light-emitting di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/80
Inventor 徐超
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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