3results about How to "Improve light extraction rate" patented technology

This invention provides a display panel and a display device. The display panel includes a first optical refractive layer and a second optical refractive layer. The first optical refractive layer includes multiple openings, and the second optical refractive layer fills the multiple openings. The refractive index of the second optical refractive layer is greater than that of the first optical refractive layer. Nanoparticles are also disposed within the second optical refractive layer. When light passes through, the first and second optical refractive layers effectively increase the light transmittance. Simultaneously, the nanoparticles further act on the light, thereby effectively improving the light extraction rate of the display panel and enhancing its display effect.

The utility model relates to a head-up display system. The head-up display system comprises a backlight module, a display panel and a polarizing element. The backlight module comprises a substrate and a plurality of LED light sources, the LED light sources are arranged on the substrate, and each LED light source is an integrated lens light source. The display panel is obliquely arranged relative to the backlight module. The polarizing element is arranged between the backlight module and the display panel and used for deflecting normal light in light emitted by the LED light source or refracting normal light emitted by the deflected LED chip to form emergent light irradiated to the display panel in the preset direction. The polarization element is arranged to deflect the normal light of the LED light source or refract the normal light of the deflected LED chip, so that the emergent light of the polarization element irradiates the display panel in the preset direction, and the light intensity of the normal emergent light of the LED light source or the LED chip is higher than that of the corresponding lateral light. The emergent light formed after deflection can obviously improve the luminance of the display panel.

The application provides a display panel, which has a display area, a hole area and a peripheral area, the peripheral area is arranged at the periphery of the hole area, the display area is arranged at the periphery of the peripheral area, and the display panel comprises a back plate, a plurality of light emitting elements, an encapsulation layer and a first flat layer, the back plate, the encapsulation layer and the first flat layer are located in the display area and the peripheral area, the plurality of light emitting elements are located in the display area and on one side of the back plate, the encapsulation layer is located on the side of the plurality of light emitting elements away from the back plate, the first flat layer is located on the side of the encapsulation layer away from the back plate, further comprising a plurality of light extraction structures, which are located in the display area, on the side of the encapsulation layer away from the back plate and on the side of the first flat layer close to the back plate, the plurality of light extraction structures correspond to the plurality of light emitting elements one by one, and the orthographic projection of the light extraction structure on the back plate covers the light emitting element. The display panel can avoid the occurrence of GDSH (i.e. black spots on the edge of the hole) in the peripheral area at the periphery of the hole area.