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Flexible OLED display panel

A display panel, flexible technology, applied in photovoltaic power generation, electrical components, electric solid devices and other directions, can solve the problems of easy penetration by water and oxygen, poor water and oxygen barrier performance, shortened life of OLED, etc., to prevent water and oxygen penetration, use Long life and the effect of improving the life of OLED

Inactive Publication Date: 2018-02-16
HEFEI HUIKE JINYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Flexible display devices are one of the most popular display technologies at present. OLED technology is currently considered the most suitable technology for making flexible display devices. However, the existing flexible substrates have poor water and oxygen barrier properties and are easily permeated by water and oxygen, which shortens the life of OLEDs.

Method used

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  • Flexible OLED display panel

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Embodiment 1

[0030] see figure 1 , the present invention provides a flexible OLED display panel, comprising: a flexible substrate 1, a buffer layer 2 covering the flexible substrate 1, a gate 3 arranged on the buffer layer 2, covering the gate 3 and a buffer The first insulating layer 4 of layer 2, the active layer 5 disposed on the first insulating layer 4, the source electrode disposed on the first insulating layer 4 and in contact with both ends of the active layer 5 6 and the drain 7, the second insulating layer 8 covering the source 6, the drain 7, and the first insulating layer 4, which is arranged on the second insulating layer 8 and is electrically connected to the drain 7 The connected first electrode 9, the pixel definition layer 10 covering the first electrode 9 and the second insulating layer 8, the pixel definition groove 111 arranged on the pixel definition layer 10 above the first electrode, and the pixel definition groove 111 arranged on the The organic light emitting laye...

Embodiment 2

[0038] A method for manufacturing a flexible substrate assembly of a flexible OLED display panel, the steps are as follows:

[0039] 1), structure and separate processing

[0040] a flexible substrate assembly, comprising a first polymer layer thus stacked, an inorganic barrier layer, a metal foil layer and a second polymer layer having a thickness greater than the thickness of said first polymer layer, The first polymer layer and the second polymer layer are doped with desiccant;

[0041] The material of the inorganic barrier layer is a combination of one or more of silicon oxide and silicon nitride;

[0042] The materials of the first polymer layer and the second polymer layer are polyimide doped with a desiccant material;

[0043] The material of the metal sheet layer is aluminum;

[0044] The compositing before the layers is performed using existing technologies;

[0045] 2), pretreatment

[0046] After compounding, spray the pretreatment liquid on the outer surface, ...

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Abstract

The invention relates to the field of display technology, and in particular to a flexible OLED display panel. The flexible OLED display panel in the invention includes a flexible substrate and an organic light emitting diode formed on the flexible substrate. The flexible substrate includes a first polymer layer, an inorganic barrier layer, a metal sheet layer, and a second polymer layer which arestacked in sequence. The second polymer layer has a thickness greater than the thickness of the first polymer layer. The first polymer layer and the second polymer layer are doped with a desiccant. The water and oxygen penetration can be effectively prevented, and the OLED service life is prolonged.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible OLED display panel. Background technique [0002] Organic Light Emitting Display (OLED) devices not only have excellent display performance, but also have the characteristics of self-luminescence, simple structure, ultra-thin, fast response, wide viewing angle, low power consumption and flexible display. , known as the "dream display", has been favored by major display manufacturers and has become the main force of the third-generation display devices in the field of display technology. [0003] Flexible display devices are one of the most popular display technologies at present. OLED technology is currently considered the most suitable technology for making flexible display devices. However, the existing flexible substrates have poor water and oxygen barrier properties and are easily permeated by water and oxygen, which shortens the life of OLEDs. . Contents of th...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/00H01L51/52H01L51/56
CPCH10K59/12H10K77/111H10K50/846H10K71/00Y02E10/549
Inventor 白航空
Owner HEFEI HUIKE JINYANG TECH
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