Light source system with sealed light emitting diode recesses

• US 20040130019A1
• Filed: 12/17/2003
• Published: 07/08/2004
• Est. Priority Date: 12/17/2002
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Chen, Mi-Chien
• Application Number:
  US10/739,572
• Publication Number:
  US 20040130019A1
• Time in Patent Office: Days
• US Class Current: 257/723
• CPC Class Codes: G02B 6/0021 for housing at least a part of the light source, e.g. by forming holes or recesses
• CPC Class Codes: G02B 6/0043 provided on the surface of the light guide

Abstract

A light source system (2) includes a light guide plate (27), a plurality of LEDs (23), same amount of sealing blocks (25), same amount of fluorescent layers (24), same amount of conductive wirings (22), cathodes (21) and anodes (26). Each of the LED sealing blocks is disposed corresponding to one LED for fixing it from outside. Each pair of cathode and anode is connected to one of the LEDs through a conducted wiring to provide working current. Each of the fluorescent layers is disposed on the recesses respectively for converting the light emitted from the LEDs to fluorescence. The light source system is easy to manufacture and has a high efficiency of utilization of the LEDs.

Claims

1. A light source system, comprising:

a light guide plate;

a plurality of light emitting diodes (LEDs); and

a plurality of LED sealing blocks;

wherein a plurality of recesses is defined in at least one of opposite sides of the light guide plate, and each of the recesses contains a corresponding LED sealed by a corresponding LED sealing block.

2. The light source system as claimed in claim 1, further comprising a plurality of fluorescent layers disposed on the light guide plate in the recesses.

3. The light source system as claimed in claim 2, further comprising a cathode and an anode connecting with each of the LEDs, for supplying working current.

4. The light source system as claimed in claim 3, wherein the recesses are grooves.

5. The light source system as claimed in claim 4, wherein the light guide plate has a rectangular side profile.

6. The light source system as claimed in claim 4, wherein the light guide plate is wedge-shaped.

7. The light source system as claimed in claim 4, further comprising diffusing dots provided on the light guide plate.

8. The light source system as claimed in claim 3, wherein the recesses are holes.

9. The light source system as claimed in claim 8, wherein the light guide plate has a rectangular side profile.

10. The light source system as claimed in claim 9, wherein the light guide plate is wedge-shaped.

11. The light source system as claimed in claim 9, further comprising diffusing dots provided on the light guide plate.

12. A light source system comprising:

a light guide plate defining an incident side thereof;

a plurality of light emitting sources located around said incident side and activated by electricity;

a plurality of electrodes spatially extending along said incident side and mechanically and electrically connected to the corresponding light emitting sources, respectively; and

a plurality of sealing blocks fixing the light emitting sources and the associated electrodes, respectively, from an outside of said light guide plate.

13. The light source system as claimed in claim 12, wherein each of said light emitting sources is located in a corresponding recess formed in the incident side.

14. The light sources system as claimed in claim 13, wherein a fluorescent layer is applied to a surface of a region of the light guide plate facing to the recess.

15. A light source system comprising:

a light guide plate defining an incident side thereof;

a plurality of recesses formed in and along said incident side;

a plurality of light emitting sources respectively located in the corresponding recesses and activated by electricity; and

a plurality of sealing blocks bonding the light emitting sources, respectively, from an outside of said light guide plate.

16. The light source system as claimed in claim 15, wherein a fluorescent layer is applied to a surface of a region of said light guide plate facing said recess.