OLED display device and manufacturing method thereof
A technology for a display device and a manufacturing method, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., and can solve problems such as U% (film thickness uniformity cannot be effectively guaranteed, light loss is large, and implementation is difficult, etc. To achieve the effect of improving the display effect and enhancing the light extraction efficiency
Active Publication Date: 2019-12-24
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0005] At present, the light extraction efficiency of OLED display devices is low, and most of the light cannot be effectively extracted due to internal refraction or reflection, resulting in more light loss. Therefore, it is necessary to design additional light extraction devices for OLED display devices to improve The light extraction efficiency of OLED display devices currently uses more light extraction methods including: doping scattering particles inside the OLED device or inside the glass substrate and directly adding an external light extraction device, but doping scattering particles inside the OLED device or glass substrate. This method is difficult to realize, and the U% (film thickness uniformity) inside the device cannot be effectively guaranteed, and adding an external light extraction device will increase the thickness of the entire device, which is not conducive to future commercial production
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[0035] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.
[0036] see figure 1 , the present invention provides an OLED display device, comprising: an OLED display substrate 10 and an encapsulation cover 20 disposed opposite to the OLED display substrate 10;
[0037] The OLED display substrate 10 includes: a base substrate 11 and a plurality of OLED display units 12 arranged in an array on the side of the base substrate 11 close to the packaging cover plate 20;
[0038] A plurality of grooves 21 arranged in an array are formed on the surface of the package cover 20 away from the substrate 10, each groove 21 is filled with a scattering layer 22, and each groove 21 corresponds to an OLED The display unit 12 is arranged oppositely.
[0039] Specifically, the material of the scattering layer 22 is an in...
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The invention provides an OLED display device and a manufacturing method thereof. The OLED display device includes: an OLED display substrate and an encapsulation cover opposite to the OLED display substrate; the OLED display substrate includes: a base substrate and a side of the base substrate close to the encapsulation cover A plurality of OLED display units arranged in an array; a plurality of grooves arranged in an array are formed on the surface of the packaging cover plate away from the substrate, each groove is filled with a scattering layer, and each groove They are arranged opposite to an OLED display unit. By forming a groove on the packaging cover plate and filling the scattering layer in the groove, the light extraction efficiency of the OLED display device can be improved and the OLED display device can be improved under the premise of ensuring the packaging effect. display effect.
Description
technical field [0001] The invention relates to the field of display technology, in particular to an OLED display device and a manufacturing method thereof. Background technique [0002] Flat-panel display devices have many advantages such as thin body, power saving, and no radiation, and have been widely used. Existing flat panel display devices mainly include liquid crystal display devices (Liquid Crystal Display, LCD) and organic light emitting diode display devices (Organic Light Emitting Display, OLED). [0003] Organic light-emitting diode display devices have excellent characteristics such as self-illumination, no need for backlight, high contrast, thin thickness, wide viewing angle, fast response speed, flexible panels, wide operating temperature range, and simple structure and manufacturing process. It is considered as an emerging application technology for the next generation of flat panel displays. [0004] OLED display devices generally include: a substrate, an...
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IPC IPC(8): H01L51/52H01L51/56H01L27/32
CPCH10K59/12H10K50/854H10K50/84H10K59/1201H10K71/00
Inventor 黄辉
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD