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Organic light emitting diode display screen and manufacturing method thereof

A technology of light-emitting diodes and display screens, applied in electrical components, electric solid-state devices, circuits, etc., can solve the problems of low contrast, narrow viewing angle, and limited optical performance of color filter technology.

Inactive Publication Date: 2019-08-06
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

However, compared to the polarizer (about 4.5%), the surface reflectance of the polarizing layer (R / G / B / BM) is still high (reflectance about 7.1%), and the contrast under strong light is low
Conventional black matrix has high reflectivity, which limits the optical performance of color film technology and causes the problem of narrow viewing angle

Method used

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  • Organic light emitting diode display screen and manufacturing method thereof
  • Organic light emitting diode display screen and manufacturing method thereof
  • Organic light emitting diode display screen and manufacturing method thereof

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Embodiment Construction

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

[0031] In the present invention, the same or corresponding components are represented by the same reference numerals regardless of the figure number, and throug...

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Abstract

The invention provides an organic light emitting diode display screen and a manufacturing method thereof. The organic light emitting diode display screen includes a substrate, a functional layer and apolarizing layer. The polarizing layer is composed of a photoresist layer, and a concave-convex structure is arranged on the surface of the polarizing layer away from the functional layer. The manufacturing method of the organic light emitting diode display screen includes the steps of making a display panel and making a polarizing layer. The polarizing layer is adopted instead of a polarizing plate, and a concave-convex structure is designed on the surface of the polarizing layer, which improves the light output efficiency of the light emitting layer while reducing the reflectivity of the surface of the polarizing layer. Moreover, the concave-convex structure can change the light output angle and increase the visual angle. Therefore, the problem that the narrow visual angle of the existing organic light emitting diode display screen affects reading is solved, and the problem that the existing organic light emitting diode display screen has poor reading performance under outdoor sunlight is solved.

Description

technical field [0001] The invention relates to the display field, in particular to an organic light emitting diode display screen and a manufacturing method thereof. Background technique [0002] Organic Light Emitting Diode (OLED) display technology can be applied in flexible display screens because of its advantages such as self-illumination, low power consumption, thinness, and no liquid crystal fluid layer. A flexible OLED display usually includes a substrate-based thin-film transistor layer (TFT), a light-emitting layer, a multi-layer film-based encapsulation layer, and a circular polarizer (POL). For top-emitting OLED displays, circular polarizers can reduce the reflectivity of ambient light, increase contrast, and improve the outdoor readability of OLED displays, but at the same time it will also lose about 58% of the light; in addition, its thickness Large size and brittle texture limit the development of dynamic bendable display products. [0003] The use of pola...

Claims

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/00H10K59/13H10K59/122H10K59/12
Inventor 黄晓雯龚文亮
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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