Organic electroluminescent display device with improved image clarity and light emitting efficiency
First Claim
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1. An electroluminescent display device, comprising:
- a transparent substrate;
a first electrode formed on the transparent substrate;
a light-emitting layer formed on the first electrode;
a second electrode formed on the light-emitting layer; and
a film having a grating pattern, the grating pattern comprising a plurality of grating components formed on a surface thereof, wherein each grating component of the grating pattern extends in the X, Y and Z dimensions, wherein the plurality of grating components comprises a plurality of projections arranged in a matrix form which each extend outward from a base portion of the film, and wherein each interval between adjacent projections of the plurality of projections is less than or equal to approximately half of a corresponding reflective light wavelength.
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Abstract
An organic electroluminescent (EL) display device is provided which includes a film with a multi-dimensional grating pattern formed on a surface thereof. The display device includes a transparent substrate, a first electrode formed on the transparent substrate, an organic light emitting layer formed on the first electrode, a second electrode formed on the organic light emitting layer. The is provided at a bottom of the transparent substrate. A display device employing this film with a multi-dimensional grating pattern provides improved light emitting efficiency and enhanced image quality.
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Citations
7 Claims
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1. An electroluminescent display device, comprising:
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a transparent substrate; a first electrode formed on the transparent substrate; a light-emitting layer formed on the first electrode; a second electrode formed on the light-emitting layer; and a film having a grating pattern, the grating pattern comprising a plurality of grating components formed on a surface thereof, wherein each grating component of the grating pattern extends in the X, Y and Z dimensions, wherein the plurality of grating components comprises a plurality of projections arranged in a matrix form which each extend outward from a base portion of the film, and wherein each interval between adjacent projections of the plurality of projections is less than or equal to approximately half of a corresponding reflective light wavelength. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification