Plane light source and LCD backlight unit having the same
First Claim
1. An LCD backlight unit comprising:
- a plane light source including light emitting device matrixes each having a plurality of light emitting devices arranged in rows and columns on a substrate, the plane light source comprising;
a first matrix having a plurality of light emitting devices arranged in rows and columns; and
a second matrix having a plurality of light emitting devices arranged in rows and columns, the light emitting devices each located within a rectangle formed by four adjacent light emitting devices included in the first matrix, and forming angles θ
satisfying the condition of 45°
≦
θ
≦
55°
therebetween on the basis of a horizontal direction,wherein among pitches between one light emitting devices included in the light emitting device matrixes and another lighting light emitting device adjacent to the light emitting device, a pitch P1 between the light emitting device and the light emitting device diagonally across from the light emitting device satisfies the condition of 25 mm≦
P1≦
29 mm, and a pitch P2 between the light emitting device and another light emitting device located in a horizontal direction satisfies the condition of 34 mm≦
P2≦
38 mm,a diffusion sheet located above the plane light source and uniformly diffusing light incident from the plane light source; and
at least one light collecting sheet located above the diffusion sheet and collecting light diffused by the diffusion sheet in a direction perpendicular to the plane of the LCD panel.
3 Assignments
0 Petitions
Accused Products
Abstract
There are provided a plane light source and an LCD backlight unit having the same. A plane light source including light emitting device matrixes each having a plurality of light emitting devices arranged in rows and columns on a substrate according to an aspect of the invention includes: a first matrix having a plurality of light emitting devices arranged in rows and columns; and a second matrix having a plurality of light emitting devices arranged in rows and columns, the light emitting devices each located within a rectangle formed by four adjacent light emitting devices included in the first matrix, and forming angles θ satisfying the condition of 45°≦θ≦55° therebetween on the basis of a horizontal direction, wherein among pitches between one light emitting devices included in the light emitting device matrixes and another lighting light emitting device adjacent to the light emitting device, a pitch P1 between the light emitting device and the light emitting device diagonally across from the light emitting device satisfies the condition of 25 mm≦P1≦29 mm, and a pitch P2 between the light emitting device and another light emitting device located in a horizontal direction satisfies the condition of 34 mm≦P2≦38 mm.
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Citations
5 Claims
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1. An LCD backlight unit comprising:
-
a plane light source including light emitting device matrixes each having a plurality of light emitting devices arranged in rows and columns on a substrate, the plane light source comprising; a first matrix having a plurality of light emitting devices arranged in rows and columns; and a second matrix having a plurality of light emitting devices arranged in rows and columns, the light emitting devices each located within a rectangle formed by four adjacent light emitting devices included in the first matrix, and forming angles θ
satisfying the condition of 45°
≦
θ
≦
55°
therebetween on the basis of a horizontal direction,wherein among pitches between one light emitting devices included in the light emitting device matrixes and another lighting light emitting device adjacent to the light emitting device, a pitch P1 between the light emitting device and the light emitting device diagonally across from the light emitting device satisfies the condition of 25 mm≦
P1≦
29 mm, and a pitch P2 between the light emitting device and another light emitting device located in a horizontal direction satisfies the condition of 34 mm≦
P2≦
38 mm,a diffusion sheet located above the plane light source and uniformly diffusing light incident from the plane light source; and at least one light collecting sheet located above the diffusion sheet and collecting light diffused by the diffusion sheet in a direction perpendicular to the plane of the LCD panel. - View Dependent Claims (2, 3, 4, 5)
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Specification