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An electroluminescence display panel, its manufacturing method and display device

A technology of electroluminescence display and manufacturing method, which is applied to circuits, electrical components, electrical solid devices, etc., to achieve the effect of improving light extraction efficiency and improving extraction efficiency

Active Publication Date: 2019-03-12
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide an electroluminescent display panel, its manufacturing method and display device, which are used to solve the problem of improving the light extraction efficiency of organic light emitting display devices and improving the flexibility of organic light emitting display devices

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  • An electroluminescence display panel, its manufacturing method and display device
  • An electroluminescence display panel, its manufacturing method and display device
  • An electroluminescence display panel, its manufacturing method and display device

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Embodiment Construction

[0039] An electroluminescent display panel, its manufacturing method and display device provided by the present invention will be described in more detail below with reference to the accompanying drawings and embodiments. The thickness of each film layer in the drawings does not represent the actual thickness and proportion of the electroluminescent display panel.

[0040] like figure 1 As shown, the embodiment of the present invention provides an electroluminescent display panel, including a substrate 1 and a plurality of OLEDs 2 on the substrate 1; the OLED 2 includes a transparent anode layer 21 on the substrate 1, and an organic organic A light-emitting structure 22, and a cathode layer 23 located on the organic light-emitting structure 22, the cathode layer 23 is a reflective layer;

[0041] There is a groove structure 3 corresponding to the organic light-emitting structure 22 on the contact surface between the substrate 1 and the anode layer 21;

[0042] A transparent ...

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Abstract

The embodiment of the invention discloses an electroluminescence display panel, a manufacturing method thereof and a display device. The electroluminescent display panel includes a substrate and a plurality of OLEDs on the substrate; the OLED includes a transparent anode layer on the substrate, an organic light-emitting structure on the anode layer, and a cathode layer on the organic light-emitting structure, and the cathode layer is reflective layer; there is a groove structure corresponding to the organic light-emitting structure on the contact surface between the substrate and the anode layer; a transparent filling layer is arranged in the groove structure; the upper surface of the filling layer is located at the same level as the upper surface of the substrate; the filling The layer has a refractive index greater than that of the anode layer and different from that of the substrate. Under the refraction of the groove structure, the incident angle of the light emitted by each organic light-emitting structure to the substrate is reduced, the possibility of total reflection of light entering the substrate from the anode layer is reduced, and the light emitted by each organic light-emitting structure is improved. The take-out efficiency; and will not reduce the flexibility of the display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an electroluminescence display panel, a manufacturing method thereof and a display device. Background technique [0002] At present, organic light-emitting display devices are the mainstream development direction of the next-generation display and lighting technology, and have the advantages of active light emission, wide color gamut, fast response, wide viewing angle, high contrast ratio, and planarization. In order to improve the light extraction efficiency of organic light-emitting display devices, one method is internal extraction, which is mainly to attach a scattering layer or a microlens film layer on the light-emitting surface of the substrate to reduce the total reflection from the glass substrate to the air; one method is External extraction, introducing a light-scattering layer inside the organic light-emitting display device, such as introducing a light-scattering la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/56H10K99/00
CPCH10K71/00H10K59/17H10K59/873H10K59/879H10K77/111H10K59/10H10K50/805H10K50/844H10K50/858
Inventor 王丹张微
Owner BOE TECH GRP CO LTD
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