Display apparatus and light source device thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsChunsoon Park, Sungyeol Kim, Kyehoon Lee
Life of this patent
Estimating the term…
Abstract
A light source device comprises a diffuser plate and a light source module disposed behind the diffuser plate. The light source module includes a substrate, a plurality of light emitting diodes mounted on the substrate, and a plurality of reflective layers each provided on a front surface of the plurality of light emitting diodes. When a distance between the centers of each of the plurality of light emitting diodes is referred to as a pitch, and a distance between the diffuser plate and the substrate is referred to as an optical distance, a ratio of the pitch to the optical distance satisfies the following expression: 2.5≤pitch/optical distance≤4.5.
Claims19
A light source device comprising:
- a diffuser plate;
- and
- a light source module comprising:
- a substrate;
- and
- a plurality of light emitting diodes (LEDs) on the substrate;
- and
- wherein the plurality of LEDs are arranged along a first direction and a second direction perpendicular to the first direction,
- wherein, when a distance between centers of adjacent LEDs of the plurality of LEDs is defined as a pitch, and a distance between the diffuser plate and the substrate is defined as an optical distance, a ratio of the pitch to the optical distance satisfies the following expression:
- 2.5
- ≤
- pitch
- /
- optical
-
- distance
- ≤
- 4.5
- ,
- and
- wherein a first pitch of the adjacent LEDs in the first direction and a second pitch of the adjacent LEDs in the second direction satisfy the following expression:
- (
- second
-
- pitch
- )
- ≤
- (
- first
-
- pitch
- )
- ≤
- 1.1
- *
- (
- second
-
- pitch
- )
- .
Dependencies are inferred from the claim text.