Optical unit, backlight assembly with the optical unit, and display device with the backlight assembly
First Claim
Patent Images
1. An optical unit comprising:
- an optical body including a plurality of side faces having a light entrance face onto which a blue light is incident, and a light exit face connected to the side faces; and
a yellow fluorescent layer disposed on the light entrance face of the optical body to convert the blue light into a white light to a single layer structure,wherein the yellow fluorescent layer includes a plurality of a first yellow fluorescent portions and a plurality of a second yellow fluorescent portions,wherein the first yellow fluorescent portions and the second yellow fluorescent portions respectively have a first thickness and a second thickness measured from the light entrance face, the second thickness being larger than the first thickness,wherein the first yellow fluorescent portions is disposed corresponding to an LEDs.
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Abstract
An optical includes an optical body including a plurality of side faces where one of the plurality of side faces defines a light entrance face onto which a blue light is incident. A light exit face is connected to at least one of the side faces, and a yellow fluorescent layer is disposed on the light entrance face and is configured to convert the blue light into a white light.
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Citations
20 Claims
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1. An optical unit comprising:
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an optical body including a plurality of side faces having a light entrance face onto which a blue light is incident, and a light exit face connected to the side faces; and a yellow fluorescent layer disposed on the light entrance face of the optical body to convert the blue light into a white light to a single layer structure, wherein the yellow fluorescent layer includes a plurality of a first yellow fluorescent portions and a plurality of a second yellow fluorescent portions, wherein the first yellow fluorescent portions and the second yellow fluorescent portions respectively have a first thickness and a second thickness measured from the light entrance face, the second thickness being larger than the first thickness, wherein the first yellow fluorescent portions is disposed corresponding to an LEDs. - View Dependent Claims (2, 3, 4, 5)
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6. An optical unit comprising:
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an optical body including a plurality of side faces having a light entrance face onto which a blue light is incident, and a light exit face connected to the side faces; and a yellow fluorescent layer disposed on the light entrance face of the optical body to convert the blue light into a white light to a single layer structure, wherein the yellow fluorescent layer includes a plurality of a first yellow fluorescent portions and a plurality of a second yellow fluorescent portions, wherein the first yellow fluorescent portions and the second yellow fluorescent portions respectively have a first thickness and a second thickness measured from the light entrance face, the second thickness being smaller than the first thickness, wherein the first yellow fluorescent portions is disposed corresponding to an LEDs. - View Dependent Claims (7, 8, 9, 10)
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11. A display device comprising:
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an optical unit including an optical body including a plurality of side faces having a light entrance face onto which a blue light is incident, and a light exit face connected to the side faces, and a yellow fluorescent layer disposed on the light entrance face of the optical body to convert the blue light into a white light to a single layer structure; at least one blue light generator unit disposed to provide blue light to the light entrance face; a receiving case configured to receive the optical unit and the blue light generator unit; and a display panel disposed to face the light exit face and received in the receiving case to display an image using the white light, wherein the yellow fluorescent layer facing the blue light generator unit includes a plurality of a first yellow fluorescent portions and a plurality of a second yellow fluorescent portions, wherein the first yellow fluorescent portions and the second yellow fluorescent portions respectively have a first thickness and a second thickness from the light entrance face, the second thickness being larger than the first thickness, wherein the first yellow fluorescent portions is disposed corresponding to the blue light generator unit. - View Dependent Claims (12, 13, 14, 15)
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16. A display device comprising:
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an optical unit including an optical body including a plurality of side faces having a light entrance face onto which a blue light is incident, and a light exit face connected to the side faces, and a yellow fluorescent layer disposed on the light entrance face of the optical body to convert the blue light into a white light to a single layer structure; at least one blue light generator unit disposed to provide blue light to the light entrance face; a receiving case configured to receive the optical unit and the blue light generator unit; and a display panel disposed to face the light exit face and received in the receiving case to display an image using the white light, wherein the yellow fluorescent layer facing the blue light generator unit includes a plurality of a first yellow fluorescent portions and a plurality of a second yellow fluorescent portions, wherein the first yellow fluorescent portions and the second yellow fluorescent portions respectively have a first thickness and a second thickness from the light entrance face, the second thickness being smaller than the first thickness, wherein the first yellow fluorescent portions is disposed corresponding to the blue light generator unit. - View Dependent Claims (17, 18, 19, 20)
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Specification