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Flexible OLED device and packaging method therefor

A packaging method and device technology, applied in the field of OLED display, can solve the problems of reducing the bending performance of OLED products, the thickness of the packaging layer is large, and affecting the water and oxygen barrier performance, and achieve good water and oxygen barrier performance, good bending performance, and optimized barrier performance. The effect of thin film structures

Inactive Publication Date: 2016-09-28
TRULY HUIZHOU SMART DISPLAY
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Problems solved by technology

However, in order to achieve a good barrier effect, multi-layer inorganic and organic film stacks are usually required, and the thickness of the encapsulation layer is large, which reduces the bending performance of OLED products
Moreover, there are many defects in the deposition process of inorganic barrier films, which seriously affect the water and oxygen barrier properties.

Method used

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Embodiment Construction

[0021] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. The accompanying drawings are only for reference and description, and do not constitute a limitation to the protection scope of the present invention.

[0022] Such as figure 1 As shown, this embodiment provides a flexible OLED device, including a flexible substrate 1, an organic light-emitting layer OLED 2, the organic light-emitting layer 2 is located on the flexible substrate 1, and a first barrier is deposited on the organic light-emitting layer 2 Layer 3, the first barrier layer 3 is composed of a first layer of inorganic thin film 31 and a second layer of inorganic thin film 32, a buffer layer 4 is prepared on the first barrier layer 3, and deposited on the buffer layer 4 Second barrier layer 5.

[0023] The flexible substrate 1 includes a TFT layer and an OLED device, and the flexible substrate is made of PI, Si series or Acryl series mate...

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Abstract

The invention provides a flexible OLED device and a packaging method therefor. The flexible OLED device comprises a flexible substrate and an organic light emitting layer, wherein the organic light emitting layer is positioned on the flexible substrate; a first barrier layer is deposited on the organic light emitting layer; the first barrier layer comprises a first inorganic thin film layer and a second inorganic thin film layer; a buffer layer is prepared on the first barrier layer; and a second barrier layer is deposited on the buffer layer. The flexible OLED device is provided with the first barrier layer, the second barrier layer and the buffer layer; the barrier thin film structure is optimized, so that the flexible OLED device has a good water-oxygen-barrier performance; meanwhile, the flexible OLED display is lighter and thinner, and better in bending performance; and in addition, the service life of the flexible OLED display is prolonged.

Description

technical field [0001] The invention is applicable to the technical field of OLED display, and in particular relates to a flexible OLED device and a manufacturing method thereof. Background technique [0002] Organic light-emitting diode (OLED) display technology is a technology that uses reversible discoloration produced by organic semiconductor materials driven by current to realize display. OLED has the advantages of ultra-thin, high luminous efficiency, rich colors, low-voltage DC drive, simple preparation process and wide temperature range. OLED can be made into a flexible organic electroluminescent device after using a flexible substrate, which can be bent and folded well, so as to realize a completely flexible display. OLED display technology is considered to be the most promising new generation display technology. [0003] Since the metal cathodes used in OLED devices are generally active metals such as aluminum, magnesium, and calcium, it is very easy to react with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/52H01L51/56
CPCH10K77/111H10K50/8445H10K71/00Y02E10/549
Inventor 陈升东马昆松柯贤军苏君海李建华
Owner TRULY HUIZHOU SMART DISPLAY
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