Liquid crystal display device
First Claim
1. A liquid crystal display device comprising:
- a backlight assembly comprising a light path regulating means including a first prism sheet, and the first prism sheet concentrating a first light supplied from an internal light source, regulating a light path of the first light and outputting a second light, the first prism sheet having a plurality of first triangular prisms formed on a first transparent film, an apex of each of the first triangular prisms having a round shape; and
a liquid crystal display panel assembly including an anti-glare polarizing plate for uniformly polarizing a polarized plane of the second light, and the liquid crystal display panel assembly displaying an image based on the second light,wherein the first triangular prisms form a plurality of ‘
V’
shaped grooves and each of the first triangular prisms has a bottom surface, a first oblique face and a second oblique face, apexes each of which is formed by the first oblique face and the second oblique face has a substantially same height, a ridge of each apex extends along a longitudinal direction of each triangular prism and has a shape of a curved line.
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Accused Products
Abstract
An LCD device has scratch-resistant property without using a protection sheet and can provide enhanced brightness. The LCD device includes a light path regulating member. The member includes a first prism sheet having first prisms of which apex has a round shape. The first prism sheet concentrates light supplied from a lamp to output the concentrated light. An anti-glare polarizing plate uniformly polarizes polarized planes of the concentrated light and provides the polarized light to the lower substrate. The anti-glare polarizing plate is arranged below the lower substrate of an LCD panel, and an uppermost prism sheet of optical sheets is non-matte-treated and has round-treated apexes. In spite of the absence of the protection sheet, the scratch-resistant property of the uppermost prism sheet and the brightness of the LCD panel may be enhanced.
22 Citations
18 Claims
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1. A liquid crystal display device comprising:
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a backlight assembly comprising a light path regulating means including a first prism sheet, and the first prism sheet concentrating a first light supplied from an internal light source, regulating a light path of the first light and outputting a second light, the first prism sheet having a plurality of first triangular prisms formed on a first transparent film, an apex of each of the first triangular prisms having a round shape; and a liquid crystal display panel assembly including an anti-glare polarizing plate for uniformly polarizing a polarized plane of the second light, and the liquid crystal display panel assembly displaying an image based on the second light, wherein the first triangular prisms form a plurality of ‘
V’
shaped grooves and each of the first triangular prisms has a bottom surface, a first oblique face and a second oblique face, apexes each of which is formed by the first oblique face and the second oblique face has a substantially same height, a ridge of each apex extends along a longitudinal direction of each triangular prism and has a shape of a curved line. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A liquid crystal display device comprising:
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a backlight assembly comprising i) a lamp for generating a first light, and ii) a light path regulating means including a first prism sheet having a plurality of first triangular prisms formed on a first transparent film, an apex of each of the first triangular prisms having a round shape, and the first prism sheet concentrating the first light supplied from the lamp, regulating a light path of the first light and outputting a second light; and a liquid crystal display panel assembly including i) an upper substrate, ii) a lower substrate facing the upper substrate, iii) a liquid crystal layer interposed between the upper and lower substrates, and iv) an anti-glare polarizing plate, arranged on a rear surface of the lower substrate, for uniformly polarizing a polarized plane of the second light to provide the lower substrate with the polarized second light, and the liquid crystal display panel assembly displaying an image based on the second light, wherein the first triangular prisms form a plurality of ‘
V’
shaped grooves and each of the first triangular prisms has a bottom surface, first oblique face a second oblique face, apexes each of which is formed by the first oblique face and the second oblique face and have a substantially same height, a ridge of each apex extends along a longitudinal direction of each triangular prism and has a shape of a curved line. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification