Display device
First Claim
Patent Images
1. A display device, comprising:
- a display module emitting display light;
a polarizing element which includes a transmission axis transmitting first linearly polarized light and reflects second linearly polarized light intersecting the transmission axis;
a retroreflective element comprising a base, and first and second retroreflectors each retroreflecting light made incident without transmitting the base; and
a retarder element disposed between the display module and the polarizing element and between the retroreflective element and the polarizing element to add a retardation to transmitted light, whereinthe base includes an even surface,the first and second retroreflectors are disposed between the even surface and the display module and between the even surface and the retarder element,the first and second retroreflectors are adjacent to each other,each of the first and second retroreflectors comprises a recess portion on a side facing the retarder element,each of the first and second retroreflectors includes three reflective surfaces perpendicular to each other,the recess portion is surrounded by the three reflective surfaces,an intersection portion of a first reflective surface of the first retroreflector and a second reflective surface of the second retroreflector forms a protruding portion, andthe retroreflective element further comprises a light-shielding film which covers the protruding portion.
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Accused Products
Abstract
According to one embodiment, a display device, includes a retroreflective element includes a base, and first and second retroreflectors each retroreflecting light made incident without transmitting the base, and a retarder element disposed between a display module and a polarizing element and between the retroreflective element and the polarizing element, the first and second retroreflectors being adjacent to each other, each of the first and second retroreflectors includes a recess portion on a side facing the retarder element.
12 Citations
17 Claims
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1. A display device, comprising:
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a display module emitting display light; a polarizing element which includes a transmission axis transmitting first linearly polarized light and reflects second linearly polarized light intersecting the transmission axis; a retroreflective element comprising a base, and first and second retroreflectors each retroreflecting light made incident without transmitting the base; and a retarder element disposed between the display module and the polarizing element and between the retroreflective element and the polarizing element to add a retardation to transmitted light, wherein the base includes an even surface, the first and second retroreflectors are disposed between the even surface and the display module and between the even surface and the retarder element, the first and second retroreflectors are adjacent to each other, each of the first and second retroreflectors comprises a recess portion on a side facing the retarder element, each of the first and second retroreflectors includes three reflective surfaces perpendicular to each other, the recess portion is surrounded by the three reflective surfaces, an intersection portion of a first reflective surface of the first retroreflector and a second reflective surface of the second retroreflector forms a protruding portion, and the retroreflective element further comprises a light-shielding film which covers the protruding portion. - View Dependent Claims (2, 3, 4, 5)
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6. A display device, comprising:
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a display module emitting display light which is circularly polarized light; a polarizing element transmitting and reflecting part of incident light; a first retarder element adding a retardation to transmitted light; and a retroreflective element comprising a base, and retroreflectors each retroreflecting light made incident without transmitting the base, wherein the first retarder element is disposed between the retroreflectors and the polarizing element, the base includes an even surface, the retroreflectors are disposed between the even surface and the first retarder element, the retroreflective element further comprises a protruding portion between the retroreflectors adjacent to each other, and a light-shielding film which covers the protruding portion, and light reflected on the retroreflective element and transmitting the first retarder element and the polarizing element is linearly polarized light. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A display device, comprising:
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a polarizing element which includes a transmission axis transmitting first linearly polarized light and reflects second linearly polarized light perpendicular to the transmission axis; a retarder element adding a retardation to transmitted light; and a retroreflective element comprising a base, retroreflectors each retroreflecting light made incident without transmitting the base, and a light shielding film shielding a non-retroreflective portion adjacent to the retroreflectors from light, wherein the retarder element is disposed between the retroreflectors and the polarizing element, the base includes an even surface, the retroreflectors are disposed between the even surface and the retarder element, and the retroreflective element further comprises a protruding portion between the retroreflectors adjacent to each other, and a light-shielding film which covers the protruding portion. - View Dependent Claims (14, 15, 16, 17)
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Specification