Display panel, manufacturing method thereof and display device
A technology for a display panel and a manufacturing method, which is applied in the field of display panels and display devices, and can solve problems such as differences in brightness and inability to emit light outward, and achieve the effects of reducing the difference in the refractive index of the medium and improving the low light intensity
Active Publication Date: 2019-06-21
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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Problems solved by technology
[0003] Existing displays generally use Liquid Crystal Display (LCD for short) or Organic Light-Emitting Diode (OLED for short), and no matter what kind of display the outside will include a transparent protective cover, this protection The difference between the refractive index of the cover plate and the refractive index of the environment (such as: air) makes the large-angle light emitted by the display completely reflected when it enters the interface between the protective cover plate and the environmental medium and cannot be emitted outward. Cause brightness difference at different viewing angles
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[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0046] Currently used display devices are generally provided with a protective cover to protect the light-emitting devices. Generally, glass materials are used. Taking OLED displays as an example, the brightness-viewing angle characteristic curve of OLED devices at 9V is as follows figure 1 As shown, the curve enclosed by the white squares represents the standard Lambertian distribution curve of the OLED device, and the curve enclosed by th...
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The invention discloses a display panel, a manufacturing method thereof and a display device. The display panel comprises a plurality of light-emitting units, a transparent substrate located on the light-emitting side of the light-emitting units, and at least one transparent film layer on the surface, far away from each light-emitting unit, of the transparent substrate. The refractive index of each transparent film layer is smaller than the refractive index of the transparent substrate; the refractive index of each transparent film layer is sequentially decreased along the light-emitting direction of the light emitting units. At least one transparent film layer, the refractive index of which is sequentially decreased, is arranged on the transparent substrate on the light-emitting sides ofthe light-emitting units, so that the medium refractive index difference when the light is emitted is decreased, the critical angle of the light on each medium layer interface is increased and the light can be emitted from a large angle, thereby improving the problem of low light intensity at a large viewing angle.
Description
Technical field [0001] The present invention relates to the field of display technology, in particular to a display panel, a manufacturing method thereof, and a display device. Background technique [0002] With the rapid development of display technology, displays have entered all aspects of people's lives. With the popularization and use of smart terminals, higher requirements for display viewing effects have also been put forward. [0003] Existing displays generally use liquid crystal displays (Liquid Crystal Display, LCD for short) or Organic Light-Emitting Diode displays (OLED for short). No matter which type of display, the outer side will include a transparent protective cover. This protection The difference between the refractive index of the cover plate and the refractive index of the environment (such as air) makes the large-angle light emitted by the display be totally reflected when it is incident on the boundary between the protective cover plate and the environment m...
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IPC IPC(8): H01L51/52H01L51/56
CPCG02F1/133526H10K2101/80H10K59/879H10K50/80H10K59/122H10K71/00
Inventor 李群
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD