Liquid crystal display device with light source module assembled to housing

• US 8,467,009 B2
• Filed: 04/23/2010
• Issued: 06/18/2013
• Est. Priority Date: 07/27/2009
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Teng, Hsuan-Yu, Lin, Tien-Jen, Chen, Yu-Yeh
• Primary Examiner(s): KIANNI, KAVEH C
• Application Number:
  US12/765,876
• Publication Number:
  US 20110019122A1
• Time in Patent Office: 1,152 Days
• Field of Search: 349/58, 349/60
• US Class Current: 349/58
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side
• CPC Class Codes: G02F 2203/68 Green display, e.g. recycling, reduction of harmful substances

Abstract

A liquid crystal display (LCD) device includes a first housing, second housing, a liquid crystal module, and a light source module. The second housing is fixed to the first housing. The liquid crystal module and the light source module are positioned between the first housing and the second housing. The liquid crystal module is fixed to the second housing. The liquid crystal module, the first housing, and the second housing cooperatively define a receiving groove. The light source module is received in the receiving groove, and positioned on a side of the liquid crystal module. An assembling method of the LCD device is also provided.

Claims

1. A liquid crystal display (LCD) device, comprising:

a first housing;

a second housing fixed to the first housing; and

a liquid crystal module and a light source module positioned between the first housing and the second housing, the liquid crystal module fixed to one of the first housing and the second housing;

wherein the liquid crystal module, the first housing, and the second housing cooperatively define a receiving groove, the light source module is received in the receiving groove, and positioned on a side of the liquid crystal module, and the liquid crystal module is not positioned in between the first housing and the light source module; and

wherein the first housing forms a plurality of positioning poles, each positioning pole forms a first angled surface at an end thereof, and a sidewall of the second housing is correspondingly angled to form a slope.

2. The LCD device of claim 1, wherein the first housing defines an opening exposing a display area of the LCD device.

3. The LCD device of claim 2, wherein the liquid crystal module and the light source module are fixed on the second housing.

4. The LCD device of claim 3, wherein the first housing forms a first positioning protrusion and a second positioning protrusion, and the base plate of the light source module is sandwiched between the first positioning protrusion and the second positioning protrusion.

5. The LCD device of claim 2, wherein the second housing defines an assembly groove for receiving the light source module.

6. The LCD device of claim 5, wherein the base plate of the light source module has a first end and a second end, and the first end comprising a stepped cross-section.

7. The LCD device of claim 5, wherein the base plate defines a plurality of restricting grooves, and a sidewall of each assembly groove forms a plurality of restricting protrusions, and the restricting protrusions are received in the restricting grooves.

8. The LCD device of claim 1, wherein the light source module includes a base plate and a plurality of light-emitting diodes mounted on the base plate.

9. The LCD device of claim 1, wherein the first housing defines an assembly groove for receiving the light source module.

10. The LCD device of claim 1, further comprising a light guide plate, the light guide plate, the liquid crystal module, the first housing, and the second housing cooperatively define the receiving groove.

11. The LCD device of claim 1, wherein the second housing defines a plurality of the positioning holes, and the first housing forms a plurality of positioning poles engageably receiving in the positioning holes.

12. The LCD device of claim 11, wherein the light source module is connected to a first connector of the first housing, the second housing has a second connector, and the first connector is attached to the second connector.

13. The LCD device of claim 1, wherein the second housing forms a plurality of curved grooves in which the positioning poles are slidably received.

14. The LCD device of claim 1, further comprising a reflector, and the reflector is fixed to the light source module and the light source module is received in the receiving groove of the LCD device.

15. The LCD device of claim 1, wherein the reflector is substantially L-shaped and comprises a first sidewall and a second sidewall longer than the first sidewall, wherein the light source module is fixed to the first sidewall, and the second sidewall envelops the receiving groove.