Display unit and its manufacturing method
First Claim
1. A display unit, comprising:
- a plurality of light emitting devices which generate lights for image display;
a plurality of first prisms which are arranged corresponding to each light emitting device, and refract the lights for image display; and
second prisms which are at least embedded in voids formed between the first prisms, and which have a smaller refraction index than that of the first prisms.
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0 Petitions
Accused Products
Abstract
The invention provides a display unit which can improve emission efficiency of lights for image display, and assure luminance of display images. The display unit comprises micro prisms which are arranged in the positions corresponding to organic EL devices, and which have a high refraction index to refract a light, and auxiliary prisms with a low refraction index which are embedded in voids between each micro prism. A light volume of the light viewed as an image in the direction facing an organic EL display (facing direction) is a total of a light volume of a light essentially emitted from the organic EL device in the facing direction, and lights which are directed in the facing direction by utilizing refraction phenomenon based on differences of refraction index between the micro prism and the auxiliary prism. Compared to the case wherein the micro prisms and the auxiliary prisms are not provided, an emission volume of the light in the facing direction is increased by the light volumes of the lights.
39 Citations
9 Claims
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1. A display unit, comprising:
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a plurality of light emitting devices which generate lights for image display;
a plurality of first prisms which are arranged corresponding to each light emitting device, and refract the lights for image display; and
second prisms which are at least embedded in voids formed between the first prisms, and which have a smaller refraction index than that of the first prisms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manufacturing a display unit, including the steps of:
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forming a prism precursor layer to form first prisms to cover a plurality of light emitting devices which are pattern-arranged on a support substrate;
pattern-forming a plurality of second prisms on a transparent substrate; and
forming the first prisms by placing the support substrate and the transparent substrate opposite so that the prism precursor layer and the second prisms are placed opposite to each other, and then pressure bonding the transparent substrate to the support substrate, and forming the prism precursor layer by utilizing a shape of the second prisms.
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Specification