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US 2019/0056547 A1Published application
Optical member and display device including the same
AssigneeSamsung Display Co., Ltd.
InventorsSeong Yong Hwang, Tae Gil Kang, Sang Won Lee
Life of this patent
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Abstract
An optical member includes a light guide plate having a top surface, a bottom surface, and side surfaces that connect the top surface and the bottom surface three-dimensionally and have a smaller area than the top surface and the bottom surface, a low refractive layer disposed on a side surface of the light guide plate and having a lower refractive layer than the light guide plate, and a wavelength conversion layer disposed on the low refractive layer, the wavelength conversion layer receiving first wavelength light and converting the first wavelength light into second wavelength light, which is of a different wavelength band from the first wavelength light.
Claims20
An optical member, comprising:
- a light guide plate comprising a top surface, a bottom surface, and side surfaces which are disposed in between and connect the top surface and the bottom surface, wherein each of the side surfaces has a smaller area than each of the top surface and the bottom surface;
- a low refractive layer disposed on a side surface of the light guide plate and having a lower refractive index than the light guide plate;
- and
- a wavelength conversion layer disposed on the low refractive layer, the wavelength conversion layer configured to receive a first wavelength light and convert the first wavelength light into a second wavelength light which is of a different wavelength band from the first wavelength light,
- wherein:
- the low refractive layer comprises a first surface, which faces the side surface of the light guide plate where the low refractive layer is disposed, a second surface, which is opposite to the first surface of the low refractive layer, and edges, and
- the wavelength conversion layer comprises a first surface, which faces the second surface of the low refractive layer, a second surface, which is opposite to the first surface of the wavelength conversion layer, and side surfaces, which are disposed in between and connect the first and second surfaces of the wavelength conversion layer.
4 more elements
A display device, comprising:
- an optical member which comprises:
- a light guide plate comprising a top surface, a bottom surface, and side surfaces that are disposed in between and connect the top surface and the bottom surface;
- a low refractive layer disposed on a side surface of the light guide plate and having a lower refractive index than the light guide plate;
- a wavelength conversion layer disposed on the low refractive layer, the wavelength conversion layer configured to receive a first wavelength light and convert the first wavelength light into a second wavelength light that is of a different wavelength band from the first wavelength light;
- and
- a passivation layer disposed on the wavelength conversion layer;
- a light source disposed adjacent to the side surface of the light guide plate where the low refractive layer is disposed;
- and
- a display panel disposed on the top surface of the light guide plate,
- is wherein:
- the low refractive layer comprises a first surface that faces the side surface of the light guide plate, a second surface opposite to the first surface of the low refractive layer, and edges, and
- the wavelength conversion layer comprises a first surface that faces the side surface of the light guide plate where the low refractive layer is disposed, a second surface opposite to the first surface of the wavelength conversion layer, and side surfaces that are disposed in between and connect the first and second surfaces of the wavelength conversion layer.
9 more elements
An optical member, comprising:
- a base member comprising a first surface, a second surface, and side surfaces disposed in between and connecting the first and second surfaces of the base member, wherein each of the side surfaces of the base member has a smaller area than each of the first and second surfaces of the base member;
- a wavelength conversion layer disposed on the first surface of the base member and comprising a second surface that faces the first surface of the base member, a first surface that is opposite to the second surface of the wavelength conversion layer, and side surfaces disposed in between and connecting the first and second surfaces of the wavelength conversion layer, wherein each of the side surfaces of the wavelength conversion layer has a smaller area than each of the first and second surfaces of the wavelength conversion layer, and the wavelength conversion layer is configured to receive first wavelength light and convert the first wavelength light into a second wavelength light that is of a different wavelength band from the first wavelength light;
- and
- a passivation layer disposed on the first surface of the wavelength conversion layer,
- wherein:
- the side surfaces of the base member are substantially aligned with the side surfaces of the wavelength conversion layer, and
- the passivation layer covers the first surface and the side surfaces of the wavelength conversion layer and the side surfaces of the base member.
4 more elements
Dependencies are inferred from the claim text.