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Organic light emitting display panel and heat-absorbing sealant

A technology of organic light-emitting layer and sealant, which is applied in the direction of electrical components, electrical solid devices, circuits, etc., can solve the problems of short display, insufficient improvement of OLED electric power, and influence on the application of OLED panels, so as to prolong the service life and reduce loss.

Active Publication Date: 2018-03-20
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there are still some obvious defects in OLED panels, for example, its lifespan is much shorter than that of LCD (Liquid Crystal Display, liquid crystal display), which seriously affects the application of OLED panels.
[0003] As a new type of display device, OLED display has its luminous efficiency as a key parameter to evaluate the performance of the display. In production and application, manufacturers have always hoped to increase its luminous efficiency. , OLED panel displays generate more heat, so reducing the heat storage inside the panel is very helpful for improving the life of the OLED panel

Method used

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  • Organic light emitting display panel and heat-absorbing sealant
  • Organic light emitting display panel and heat-absorbing sealant
  • Organic light emitting display panel and heat-absorbing sealant

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 2 As shown, the heat-absorbing sealant 10 of this embodiment includes a colloid 11 for sealing and a first doping material doped in the colloid 11. On the outer surface located away from the cavity to be packaged, the thermal conductivity of the first dopant material is greater than that of the colloid 11 .

[0025] In this embodiment, the first doping material is a metal fiber 12 with good thermal conductivity. For example, the material of the metal fiber 12 may be Ag or Cu. Moreover, the density of the metal fibers 12 near the outer surface is greater than that near the inner surface. Therefore, the heat-absorbing capacity of the outer surface of the heat-absorbing sealant 10 is greater than that of the inner surface, so that heat is continuously diffused from the side where the inner surface of the heat-absorbing sealant 10 is located to the outside. When it is applied to an organic light-emitting display panel, the organic light-emitting layer 1 gen...

Embodiment 2

[0030] Such as image 3 As shown, different from Embodiment 1, the first doping material in this embodiment is metal particles 12a, and the density of metal particles 12a gradually increases from the inner surface to the outer surface of the colloid 11 .

[0031] Specifically, the colloid 11 includes multiple sub-colloid layers 110 that are bonded to each other, wherein the materials of the metal particles 12a in each sub-colloid layer 110 are different, and from the inner surface to the outer surface of the colloid 11, adjacent two The specific heat capacity of the metal particles 12a in each sub-colloid layer 110 increases gradually. Such as image 3 Shown is the case where the sub-colloidal layer 110 is three layers, from the inner side of the colloid 11 to the outer side, the metal particles 12a in the sub-colloidal layer 110 are Al, Cu, Ag respectively, and the specific heat capacities of the three kinds of metal particles are determined by the organic luminescence The ...

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Abstract

The invention discloses heat-absorbing sealant. The heat-absorbing sealant comprises sealed colloid and a first doping material doped in the colloid; the colloid comprises an inner side surface arranged close to a to-be-packaged cavity and an outer side surface arranged far from the to-be-packaged cavity; and the heat conducting coefficient of the first doping material is higher than that of the colloid. The invention also discloses an organic light emitting display panel. The heat-absorbing sealant is doped with the heat conducting doping material, so that when the heat-absorbing sealant is packaged on the end part of an organic light emitting layer of the organic light emitting display panel, an effect of heat absorbing and heat dissipating can be played, loss of the organic light emitting layer caused by overheat can be lowered, and the service life of the organic light emitting display panel is prolonged.

Description

technical field [0001] The invention relates to the technical field of organic light-emitting displays, in particular to an organic light-emitting display panel and a heat-absorbing sealant. Background technique [0002] Flexible OLED (Organic Light-Emitting Diode, organic light-emitting diode) displays have gradually attracted attention, and are generally considered to be the next generation of mainstream displays. However, at present, there are still some obvious defects in the OLED panel, for example, its lifespan is much shorter than that of an LCD (Liquid Crystal Display, liquid crystal display), which seriously affects the application of the OLED panel. [0003] As a new type of display device, OLED display has its luminous efficiency as a key parameter to evaluate the performance of the display. In production and application, manufacturers have always hoped to increase its luminous efficiency. Therefore, reducing the heat storage inside the panel is very helpful for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/52
CPCH10K59/12H10K50/8426H10K50/87
Inventor 秦学思
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD