Display device having anti-fog transparent protection plate

• US 7,626,809 B2
• Filed: 05/10/2007
• Issued: 12/01/2009
• Est. Priority Date: 01/09/2007
• Status: Expired due to Fees

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: Tai, Lone-Wen, Dai, Jun, Wu, Zi-Li, Su, Hai-Xia, Hong, James Juehui
• Primary Examiner(s): Gandhi; Jayprakash N
• Assistant Examiner(s): HAUGHTON, ANTHONY MICHAEL
• Application Number:
  US11/746,647
• Publication Number:
  US 20080165480A1
• Time in Patent Office: 936 Days
• Field of Search: 361/681, 361/679.21, 361/679.22, 361/679.26
• US Class Current: 361/679.21
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133311 Environmental protection, e.g. against dust or humidity
• CPC Class Codes: G02F 2201/50 Protective arrangements
• CPC Class Codes: H05K 5/02 Details

Abstract

An exemplary display device (10) includes a display module (11), a frame (12), a porous ceramic member (13), and a transparent protection plate (14). The frame defines a receiving cavity (121). The display module is confined in the receiving cavity of the frame. The transparent protection plate is configured in front of the light output side of the display module. The porous ceramic member is located between the front surface (122) of the frame and the transparent protection plate. The display device can prevent fogs forming on the transparent protection plate for maintaining a clear display.

Claims

1. A display device, comprising:

a frame defining a receiving cavity;

a display module received in the receiving cavity of the frame;

a transparent protection plate configured on a light output side of the display module, the transparent protection plate and a light output surface of the display module being spaced apart from one another so that an interspace is defined between the transparent protection plate and the light output surface; and

a porous ceramic member located at an edge between the display module and the transparent protection plate to regulate ventilation between the interspace and outside while filtering out dust particles, wherein the frame comprises a front surface and a flange portion protruding from the front surface, the front surface and the flange portion cooperatively define a room for receiving the porous ceramic member and the transparent protection plate there within.

2. The display device as claimed in claim 1, wherein the display module is selected from a group consisting of a liquid crystal display module, a plasma display module, a field emission display module, and an electroluminescent display module.

3. The display device as claimed in claim 1, wherein the transparent protection plate is made of a material selected from a group consisting of plastic, glass, and any combination thereof.

4. The display device as claimed in claim 1, wherein the porous ceramic member is made of material selected from a group of a porous ceramics, a porous oxide-nonoxide composite ceramics, porous glass, porous glass-ceramics, and any suitable combination thereof.

5. The display device as claimed in claim 4, wherein the porous ceramic member is made of porous alumina ceramics.

6. The display device as claimed in claim 5, wherein the porous alumina ceramics defines a plurality of micro holes, and each hole has a diameter in the range from about 0.1 μ

m to about 50 μ

m.

7. The display device as claimed in claim 1, wherein the porous ceramic member comprises a first surface interconnecting with the frame, and a second surface located at the opposite side of the first surface interconnecting with the transparent protection plate.

8. The display device as claimed in claim 1, wherein the transparent protection plate defines a plurality of through hales in at least one edge thereof corresponding to the porous ceramic member.

9. The display device as claimed in claim 1, wherein the frame, the transparent protection plate and the porous ceramic member are fixed together by at least one of a piece of double-sided adhesive tape, solid adhesive, and glue, or by at least one of a fastening member and a latching member.

10. The display device as claimed in claim 1, wherein the porous ceramic member is substantially a rectangular frame in shape.

11. The display device as claimed in claim 1, wherein the porous ceramic member is made of at least one porous ceramic unit each of the at least one porous ceramic unit is an elongated rectangular sheet in shape.

12. A display device, comprising:

a frame comprising a front surface and a plurality of side rims extending rearwards from a periphery of the front surface, wherein the front surface defines a window, and the side rims cooperatively defines a receiving cavity behind the front surface;

a display module having a light output surface confined in the receiving cavity;

a transparent protection plate located in front of the display module, the transparent protection plate and a light output surface of the display module being spaced apart from one another so that an interspace is defined between the transparent protection plate and the light output surface; and

a porous ceramic member located between the front surface of the frame and the transparent protection plate to regulate ventilation between the interspace and outside while filtering out dust particles, wherein the frame further comprises a flange portion protruding from surface, the front surface and the flange portion cooperatively define a room for receiving the porous ceramic member and the transparent protection plate there within.

13. The display device as claimed in claim 12, wherein the transparent protection plate is made of a material selected from a group consisting of plastic, glass, and any combination thereof.

14. The display device as claimed in claim 12, wherein the porous ceramic member is made of a material selected from a group of a porous ceramics, a porous oxide-nonoxide composite ceramics, porous glass, porous glass-ceramics, and any suitable combination thereof.

15. The display device as claimed in claim 12, wherein the transparent protection plate defines a plurality of through holes in at least one edge thereof corresponding to the porous ceramic member.

16. The display device as claimed in claim 12, wherein the porous ceramic member is substantially a rectangular frame in shape.

17. The display device as claimed in claim 12, wherein the porous ceramic member is made of porous alumina ceramics.

18. The display device as claimed in claim 17, wherein the porous alumina ceramics defines a plurality of micro holes, and each hole has a diameter in the range from about 0.1 μ

m to about 50 μ

m.