摘要:
A light emission device and a display device provided with the light emission device are provided. The light emission device includes an electron emission-type light emission panel for emitting light, and a diffusion member located on the light emission panel and for diffusing the light emitted from the light emission panel. The diffusion member includes a base having a first refractive index and two oppositely facing surfaces; and a diffusion region located in at least one of the surfaces of the base and having a second refractive index differing from the first refractive index.
摘要:
The present invention provides a green light-emitting phosphor for a light-emitting device excited by vacuum ultraviolet rays, a light-emitting device, and a method of preparing the same. The green light-emitting phosphor is represented by the formula AxB4-2xO6-2x:Mny, wherein A is Mg, Zn, Ca, or Li, B is Al or Ga, 0.6≦x≦1.4, and 0.01≦y≦0.1. The phosphor has excellent brightness, color purity, and discharging characteristics, and a short decay time. In one embodiment, the phosphor has a stable spinel structure, and is stable with regard to external influence such as heat, ion bombardment, and vacuum ultraviolet rays. Longer-lived light-emitting devices are also disclosed.
摘要翻译:本发明提供一种用于通过真空紫外线激发的发光器件的绿色发光荧光体,发光器件及其制备方法。 绿色发光荧光体由下式表示:其中,B为4〜 SUB>,其中A是Mg,Zn,Ca或Li,B是Al或Ga,0.6 <= x <= 1.4和0.01 <= y <= 0.1。 该荧光体的亮度,色纯度,放电特性优异,衰减时间短。 在一个实施方案中,磷光体具有稳定的尖晶石结构,并且对于诸如热,离子轰击和真空紫外线的外部影响是稳定的。 还公开了更长寿命的发光器件。
摘要:
A phosphor for a plasma display panel (PDP) has a decay time of about 1 ms or less when a Xe concentration is about 10 wt % to about 30 wt % based on the total weight of a discharge gas. A phosphor composition includes the same and a PDP includes a phosphor layer comprising the phosphor or the phosphor composition. When the phosphor or the phosphor composition are used, a low gray scale and low discharge problem due to a green phosphor of a PDP may be solved, a permanent afterimage due to a green phosphor is reduced, and a color reproduction range is significantly broadened compared to a conventional green phosphor of a PDP. In addition, the circuit of the PDP is simplified since colors are not individually subjected to gamma correction but are corrected using a single white gamma. Furthermore, the contrast in a light room is also improved due to the use of phosphor powders with color.