Display apparatus

• US 7,687,995 B2
• Filed: 01/24/2007
• Issued: 03/30/2010
• Est. Priority Date: 01/27/2006
• Status: Expired due to Fees

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: Yoo, Young-Gil
• Primary Examiner(s): Won; Bumsuk
• Application Number:
  US11/657,786
• Publication Number:
  US 20070247053A1
• Time in Patent Office: 1,161 Days
• Field of Search: 313582-587
• US Class Current: 313/583
• CPC Class Codes: H01J 17/18 Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
• CPC Class Codes: H01J 2211/446 Electromagnetic shielding means; Antistatic means
• CPC Class Codes: H01J 2211/46 Connecting or feeding means, e.g. leading-in conductors
• CPC Class Codes: H05K 9/0096 for television displays, e.g. plasma display panel

Abstract

Provided is a display apparatus that includes a panel assembly having a front panel and a rear panel coupled to the front panel and a plurality of discharge electrodes to which power is applied; a chassis base assembly that is combined with the panel assembly and on which a driving circuit unit is formed; a plurality of signal transmitting units that electrically connect the discharge electrodes and the driving circuit unit; and a silicon protection member which is formed on at least an end of each of the signal transmitting units to surround connection portions between the signal transmitting units and the discharge electrodes of the driving circuit unit, and comprises a silicon layer that seals the connection portions from the outside and an electromagnetic wave shielding material that is mixed in the silicon layer to block electromagnetic waves generated by the discharge electrodes or the driving circuit unit and has an electromagnetic wave shielding range from 1 to 200 dB. The display apparatus can prevent yellowing, and at the same time, can block electromagnetic waves.

Claims

1. A display apparatus comprising:

a panel assembly having a front panel and a rear panel coupled to the front panel and a plurality of discharge electrodes;

a chassis base assembly that is combined with the panel assembly and on which a driving circuit unit is formed;

a plurality of signal transmitting units that electrically connect the discharge electrodes and the driving circuit unit; and

a silicon protection member which is formed on at least one end of at least one of the signal transmitting units configured to surround connection portions between the signal transmitting units and the discharge electrodes of the driving circuit unit,

wherein the silicon protection member comprises a silicon layer that seals the connection portions from the outside and an electromagnetic wave shielding material that is mixed with the silicon layer configured to block electromagnetic waves generated by the discharge electrodes or the driving circuit unit and;

wherein the silicon protection member has an electromagnetic wave shielding range from about 1 to about 200 dB.

2. The display apparatus of claim 1, wherein each of the signal transmitting units comprises a driving IC, a lead electrically connected to the driving IC, and a flexible film that surrounds the lead.

3. The display apparatus of claim 2, wherein the silicon protection member surrounds connected portions between the leads and the discharge electrodes.

4. The display apparatus of claim 1, wherein the electromagnetic wave shielding material comprises Au, Ag, Cu, Al, Ni, Fe, C, or an alloy thereof.

5. The display apparatus of claim 1, wherein the electromagnetic wave shielding material comprises a conductive material at from about 0.5 to about 90 wt % of the electromagnetic wave shielding material.

6. The display apparatus of claim 1, wherein the electromagnetic wave shielding material has a volume resistivity of about 1×

10⁹ Ω

·

cm.

7. The display apparatus of claim 1, wherein the electromagnetic wave shielding material is formed by coating the electromagnetic wave shielding material in a mixed state with the silicon layer.

8. The display apparatus of claim 1, wherein the electromagnetic wave shielding material is formed by coating the electromagnetic wave shielding material in a liquid state on the surface of the silicon layer.

9. The display apparatus of claim 1, wherein the electromagnetic wave shielding material is a pressed product formed by covering a braided conductive material on the surface of the silicon layer.

10. The display apparatus of claim 1, further comprising an electromagnetic wave shielding filter in front of the panel assembly.

11. The display apparatus of claim 10, wherein the electromagnetic wave shielding filter is attached to the front surface of the front panel.

12. The display apparatus of claim 10, wherein the electromagnetic wave shielding filter is electrically grounded to the chassis base assembly by a grounding line.