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Substratum, display panel and display device

A display panel and adhesive layer technology, applied in semiconductor devices, electrical components, circuits, etc., can solve problems such as bluish white screen, achieve the effects of reducing bluish white screen, improving screen display quality, and improving user experience

Active Publication Date: 2018-11-23
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides an adhesive layer, a display panel and a display device to solve the problem in the prior art that the display panel tends to appear bluish in white when the viewing angle is large.

Method used

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  • Substratum, display panel and display device
  • Substratum, display panel and display device
  • Substratum, display panel and display device

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Embodiment Construction

[0039] As mentioned in the background art section, in the prior art, the display panel in the prior art tends to have a bluish white picture at a larger viewing angle.

[0040] The inventors found that the reason for the above phenomenon is that as the viewing angle increases, the brightness of the red light-emitting unit and the blue light-emitting unit both decrease, but the brightness of the red light-emitting unit decreases more than the brightness of the blue light-emitting unit. That is, at a large viewing angle, the brightness of the red light emitting unit is lower than that of the blue light emitting unit, resulting in a bluish phenomenon of the organic light emitting display panel in the prior art at a high viewing angle. Therefore, more red light needs to be supplemented at high viewing angles to maintain white balance. The inventors found that the optical properties of the display panel can be adjusted by adding some scattering particles in the adhesive layer. Suc...

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Abstract

The invention provides a substratum, a display panel and a display device. The substratum comprises a substratum body and scattering particles distributed in the substratum body, wherein the red lightrefractive index of the scattering particles is nR, and the blue light refractive index of the scattering particles is nB; and the red light refractive index of the substratum body is NR, and the blue light refractive index of the substratum is NB; and NR, nB, NR, NB meets the relation of |nR-NR|> |NB-nB|. That is to say, for the whole substratum, the refractive index difference of the substratumto red light is greater than that of the substratum to blue light. Due to the large difference of the red light refractive index, the scattering ability to the red light is high, and more light enters a large viewing angle area; and the difference of the blue light refractive index is small, so the scattering ability is low, and less light enters the large viewing angle area. Thus, the red lightbrightness of the large viewing angle area can be compensated, when the substratum is applied to the display side of the display panel, the situation that a white screen of the display panel is bluishcan be reduced, so that the display quality of the screen under the large viewing angle is improved, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of electronic product manufacturing, in particular to an adhesive layer, a display panel and a display device. Background technique [0002] With the continuous development of display technology, various display panels are gradually developed, mainly including Organic Light Emitting Diode (OLED) and Liquid Crystal Display (LCD). The organic light-emitting display panel is a self-luminous display panel, while the liquid crystal display panel also needs to be provided with a backlight module on its back to illuminate and realize light emission. Regardless of the display panel, red sub-pixels (R), green sub-pixels (G) and blue sub-pixels (B) are usually fabricated on the panel and arranged in an array. By controlling the lighting of the three sub-pixels, mixing Three colors in different proportions, so as to realize the color screen display. [0003] Specifically, see figure 1 , figure 1 It is a structural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/52
CPCH10K50/858
Inventor 翟应腾
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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