LIGHTING DEVICE AND DISPLAY DEVICE

• US 20200133074A1
• Filed: 04/20/2018
• Published: 04/30/2020
• Est. Priority Date: 04/27/2017
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: WATANABE, HISASHI, YASUNAGA, HIROTOSHI, KYOUKANE, YOUZOU
• Application Number:
  US16/607,027
• Publication Number:
  US 20200133074A1
• Time in Patent Office: Days
• CPC Class Codes: F21S 2/00 Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133606 including a specially adapted diffusing, scattering or light controlling members
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means

Abstract

A lighting device includes a light source, a light source substrate on which the light source is mounted, an optical member disposed to face the light source substrate while having a gap therebetween, and a supporting member being transmissive and disposed between the light source substrate and the optical member. The supporting member is configured to support the optical member and includes at least a light source surrounding portion. The light source surrounding portion and the light source substrate surround the light source therebetween.

Claims

1. A lighting device, comprising:

a light source;

a light source substrate on which the light source is mounted;

an optical member disposed to face the light source substrate while having a gap therebetween; and

a supporting member being transmissive and disposed between the light source substrate and the optical member and configured to support the optical member and including at least a light source surrounding portion, the light source surrounding portion and the light source substrate surrounding the light source therebetween.

2. The lighting device according to claim 1, wherein the light source surrounding portion includes at least an optical member contacting portion configured to contact the optical member.

3. The lighting device according to claim 2, wherein the optical member contacting portion extends in parallel to a surface of the optical member such that at least a portion of the optical member contacting portion overlaps the light source.

4. The lighting device according to claim 3, wherein

the light source includes light sources that are arranged at intervals within a surface area of the light source substrate, and

the light source surrounding portion is arranged in such a manner as to surround the light sources collectively, and the optical member contacting portion extends such that at least a portion of the optical member contacting portion extends across the light sources.

5. The lighting device according to claim 2, wherein

the light source surrounding portion includes at least an optical member spacer that is continuous from the optical member contacting portion and spaced apart from the optical member toward the light source substrate, and

the optical member spacer has a curved sectional shape.

6. The lighting device according to claim 1, wherein the light source surrounding portion includes at least a substrate contacting portion configured to contact the light source substrate.

7. The lighting device according to claim 6, wherein

the light source includes light sources that are arranged at intervals within a surface area of the light source substrate in rows and columns, and the lighting device further comprising:

fixing members arranged two-dimensionally in a staggered manner with respect to the light sources to fix the substrate contacting portion to the light source substrate.

8. The lighting device according to claim 1, wherein

the light source includes light sources that are arranged at intervals within a surface area of the light source substrate in rows and columns, and

the light source surrounding portion extends along a row direction or a column direction of the light sources so as to surround the light sources collectively.

9. The lighting device according to claim 1, wherein

the light source includes light sources and the light source surrounding portion includes light source surrounding portions, and the light sources and the light source surrounding portions are arranged within a surface area of the light source substrate in rows and columns, and

the light source surrounding portions at least include optical member contacting portions, respectively, that are configured to contact the optical member, and the optical member contacting portions that are adjacent to each other are connected to each other.

10. The lighting device according to claim 1, wherein

the light source surrounding portion at least includes an optical member contacting portion configured to contact the optical member, and a substrate contacting portion configured to contact the light source substrate, and

the supporting member includes a plurality of separated supporting members obtained by separating the optical member contacting portion.

11. A display device, comprising:

the lighting device according to claim 1; and

a display panel configured to display an image with use of light exiting from the lighting device.