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Display device and preparation method thereof

A display device and packaging layer technology, which is applied in the manufacture of semiconductor/solid-state devices, electrical components, and electric solid-state devices, etc., can solve the problems of easy entry of water and oxygen into the interior of the device, poor sealing effect of the display device, affecting the performance and life of the device, etc. To achieve the effect of easy operation, improve the use effect, and ensure the use effect

Active Publication Date: 2019-05-07
YUNGU GUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technology to be solved by the present invention is that the sealing effect of the existing display device is poor, and water and oxygen can easily enter the interior of the device, thereby affecting the performance and life of the device.

Method used

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  • Display device and preparation method thereof
  • Display device and preparation method thereof
  • Display device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment provides a display device, such as figure 1 and figure 2 As shown, it includes a plurality of organic light emitting diodes 21 and an encapsulation layer 4 for encapsulating the organic light emitting diodes on the substrate 11 . The display device also includes at least one encapsulation unit, each encapsulation unit encapsulates an organic light emitting diode 21, and the side wall of the encapsulation unit is surrounded by a groove 3 along a direction perpendicular to the light-emitting surface of the corresponding organic light emitting diode 21, and the organic light emitting diode 21 The second electrode layer 53 in the corresponding organic light emitting diode 21 extends into the groove 3 along the top.

[0046] The organic light-emitting diodes 21 arranged in the same layer form the display array layer 2, and correspondingly, it also includes a driving array layer 1 stacked on the substrate 11; the driving array layer 1 includes a number of ju...

Embodiment 2

[0088] This embodiment provides a display device, such as image 3 As shown, its structure is basically the same as that of the display device provided in Embodiment 1. The difference is that each encapsulation unit encapsulates two laterally adjacent organic light emitting diodes 21, thus forming an encapsulation barrier with an encapsulation layer 4 vertically, even the most The encapsulation of the peripheral organic light-emitting diodes fails, and water vapor / oxygen will not continue to penetrate into the display area, and the light emission of the internal organic light-emitting diodes will not be affected, and the encapsulation effect will be better.

[0089] The preparation method of the display device is the same as in Example 1, the difference is that the mask in the photolithography step needs to be replaced in step S3, and the mask opening in this step in Example 1 corresponds to an organic light emitting diode, and step S3 in this example The mask openings in corr...

Embodiment 3

[0093] This embodiment provides a display device, such as Figure 4 As shown, its structure is basically the same as that of the display device provided in Embodiment 1. The difference is that each encapsulation unit encapsulates four adjacent organic light-emitting diodes 21, thus forming an encapsulation barrier with an encapsulation layer 4 vertically, even if the outermost The organic light-emitting diode packaging fails, and the water vapor / oxygen will not continue to penetrate into the display area, the internal organic light-emitting diodes will not be affected by the light emission, and the packaging effect will be better.

[0094] The preparation method of the display device is the same as in Example 1, the difference is that the mask in the photolithography step needs to be replaced in step S3, and the mask opening in this step in Example 1 corresponds to an organic light emitting diode, and step S3 in this example The mask openings in correspond to the openings of t...

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Abstract

The present invention provides a display device. The display device comprises: a plurality of organic light emitting diodes, a package layer configured to package the plurality of organic light emitting diodes on a substrate, wherein at least one organic light emitting diode forms a package unit, each package unit comprises a groove round the side wall of the package unit in the display device ina direction being perpendicular to the light-emitting surface direction of the organic light emitting diode; and a second electrode layer extended from the top portions of the organic light emitting diodes into the grooves. The scheme can ensure the seal performance of the display device and can improve the service life of the display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic electroluminescence display device and a preparation method thereof. Background technique [0002] The organic materials in the existing organic electroluminescent display devices are very sensitive to the erosion of water and oxygen, and a small amount of water and oxygen will cause the oxidation, crystallization or deterioration of the electrodes of the organic materials in the device, directly affecting the life of the device and even causing damage to the device . The organic electroluminescent display device is a thin-film device, and water and oxygen channels are easily formed in the gap between the film layers, so that water and oxygen in the air enter the device, thereby affecting the performance and life of the device. Contents of the invention [0003] Therefore, the technology to be solved by the present invention is that the sealing effect of the existi...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/52H01L51/56
Inventor 刘金强刘亚伟邢振华杜佳梅吴耀燕
Owner YUNGU GUAN TECH CO LTD
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