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Light-emitting device and display device with use of light-emitting device

A light-emitting device and a technology of a light-emitting material layer, which are applied in nanotechnology, optics, and light guides for materials and surface science, can solve problems such as reducing display brightness, wasting electric energy, and losing light intensity, and achieve the effect of simple structure

Active Publication Date: 2016-03-02
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the general light source emits non-polarized light, it means that at least half of the light intensity will be lost through the polarizer, which not only reduces the display brightness but also wastes electric energy

Method used

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  • Light-emitting device and display device with use of light-emitting device
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  • Light-emitting device and display device with use of light-emitting device

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Embodiment Construction

[0033] The light-emitting device provided by the present invention and the display device using the light-emitting device will be further described in detail below with reference to the accompanying drawings and specific embodiments. The light-emitting devices provided by the first to fourth embodiments of the present invention are optically pumped light-emitting devices, which are excited by external light to emit light. The light-emitting devices provided by the fifth to eighth embodiments of the present invention are electrically pumped light-emitting devices, which excite the light-emitting devices to emit light by electric energy. A display device using the light emitting device is a liquid crystal display.

[0034] see Figure 1-2 , the first embodiment of the present invention provides a light emitting device 100 , the light emitting device 100 includes an insulating transparent substrate 110 , a metamaterial layer 120 and a light emitting material layer 130 . The ins...

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Abstract

The present invention relates to a light-emitting device which comprises an insulating transparent substrate and a light-emitting material layer arranged at the surface of an insulating transparent substrate. The light-emitting device further comprises a metal metamaterial layer arranged between the insulating transparent substrate and the light-emitting material layer. The metal metamaterial layer comprises multiple metamaterial units in periodical arrangement. Through the plasmon polariton field of the metamaterial, the operation of electromagnetic wave properties is realized in a nanometer scale, the nanoscale polarization polarizing of the light emitted by the light-emitting device can be realized, and thus polarized light is directly emitted. A display device with the use of the light-emitting device does not need a special polarizing element, and the structure is simple.

Description

technical field [0001] The present invention relates to a light emitting device and a display device using the light emitting device, in particular to a metamaterial plasmon integrated light emitting device and a display device using the light emitting device. Background technique [0002] Currently liquid crystal displays have been widely used by people. The principle adopted by the liquid crystal display is to use an electrical modulation layer, such as liquid crystal molecules, to change the polarization of incident polarized light, so that the intensity of light that finally passes through the analyzer changes. [0003] In order to generate polarized light, the method widely used at present is to use thin-film polarizers to polarize light emitted by light sources (lamp tubes or LEDs). Since the general light source emits non-polarized light, it means that at least half of the light intensity will be lost through the polarizer, which not only reduces the display brightne...

Claims

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Application Information

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IPC IPC(8): H01L33/44H01L33/42G02F1/13357
CPCG02B1/002B82Y20/00B82Y30/00C09K19/52C09K2219/00G02B5/008G02B5/30G02B6/0066
Inventor 任梦昕李群庆张立辉陈墨范守善
Owner TSINGHUA UNIV
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