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Organic light-emitting display panel

A technology of light-emitting display and panel, applied in the direction of electrical components, diodes, electric solid-state devices, etc., can solve the problem of low luminous efficiency of devices, and achieve the effect of reducing total reflection

Active Publication Date: 2020-12-15
NANJING BREADY ELECTRONICS CO LTD
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  • Claims
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Problems solved by technology

The B-OLED+color conversion layer method uses a blue light-emitting material to make an organic light-emitting layer. When emitting light, a layer of color conversion layer film is placed in the middle. The film of the color conversion layer absorbs the blue light emitted by the blue light-emitting material and emits red and green light respectively. There is energy loss in down conversion, so the luminous efficiency of the device is not as good as that of RGB-OLED

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preparation example Construction

[0036] Embodiment 1 of the present application provides a method for preparing an optical film, the optical film is a composite optical film, including an optical coupling layer and a light extraction layer, and the light extraction layer has a long-range ordered porous network patterned in an array structure, the light extraction layer contains quantum dots used as light conversion materials, the quantum dots are distributed on the mesh edge of the mesh patterned structure of the light extraction layer, and the holes are through holes or arc-shaped depressions. like figure 1 Shown, this preparation method comprises:

[0037] S1. Provide a substrate;

[0038] Exemplarily, the substrate can be used as a light coupling layer of a composite optical film. However, the substrate can also be used only as a film-forming substrate of a composite optical film, and an optical coupling layer is additionally provided on the side of the film-forming substrate close to the light extractio...

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Abstract

The embodiment of the invention provides an organic light-emitting display panel, and the display panel comprises a blue backlight source which emits blue light; and a composite optical film which comprises a red quantum dot optical film corresponding to the red sub-pixel R, a green quantum dot optical film corresponding to the green sub-pixel G and a blue optical film corresponding to the blue sub-pixel B; wherein the composite optical film comprises an optical coupling layer and a light extraction layer, the optical coupling layer is arranged between the light extraction layer and the blue backlight source, and the refractive index of the optical coupling layer is greater than that of the light extraction layer; the light extraction layer comprises a long-range ordered porous net-shapedpatterned structure arranged in an array, and the red quantum dots, the green quantum dots and the blue quantum dots are distributed at the edges of meshes of the net-shaped patterned structure. According to the embodiment of the invention, the defects of high manufacturing cost, low luminous efficiency and low color purity in the prior art are overcome.

Description

technical field [0001] The present application relates to an organic light emitting display panel, and more specifically, to an organic light emitting display panel with a composite optical film. Background technique [0002] In recent years, Organic Light-Emitting Diode (OLED) display devices have become a very popular new flat-panel display device product at home and abroad, because OLED display devices have self-illumination, wide viewing angle, short response time, high luminous efficiency, wide It has the characteristics of color gamut, thin thickness, large size and bendability, and simple manufacturing process, and it also has the potential of low cost. [0003] Organic light-emitting display devices can be classified into three types according to colorization methods: RGB-OLED, W-OLED+color filter (Color Filter), and B-OLED+color conversion layer. Among them, the RGB-OLED method uses red, green, and blue light-emitting materials to make organic light-emitting laye...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/52H01L51/56
CPCH10K59/50H10K59/38H10K50/85H10K50/858H10K71/00
Inventor 刘勇王芬周钰明卜小海
Owner NANJING BREADY ELECTRONICS CO LTD
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