IP Library Granted Patent US 6,954,186
Granted Patent B2
US 6,954,186 · App. 10/174,957 · Granted Oct 11, 2005

Plasma display panel unit

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,954,186
App. No.
10/174,957
Granted
Oct 11, 2005
Kind
B2
Abstract

The plasma display panel (PDP) unit of the present invention comprises a PDP drive circuit for supplying drive power to a display panel and a control portion for controlling the drive power. The control portion includes a power correction value generating circuit for generating a power correction value and the PDP drive circuit contains a voltage adjusting circuit for outputting the drive power based on the power correction value.

Claims (41)

1. An apparatus, comprising:

a drive circuit that outputs a drive signal to a display panel; and

a control circuit that generates correction data and outputs the correction data to the drive circuit,

wherein the drive circuit adjusts the drive signal based on the correction data,

wherein the drive circuit comprises an electrode drive circuit,

wherein the electrode drive circuit comprises a sustain drive circuit, which has a power supply and which generates a sustain discharge pulse, and

wherein the correction data is supplied to the power supply of the sustain drive circuit.

2. The apparatus as claimed in claim 1 , wherein the drive signal comprises a drive voltage, and wherein the drive circuit adjusts the drive voltage based on the correction data.

3. The apparatus as claimed in claim 1 , wherein the control circuit detects a temperature of the display panel, and wherein the control circuit generates the correction data based on the temperature.

4. The apparatus as claimed in claim 3 , wherein the control circuit detects an amount of time that the display panel has been in use, and wherein the control circuit generates the correction data based on the amount of time.

5. The apparatus as claimed in claim 4 , wherein the control circuit receives an external control signal from an external device, and wherein the control circuit generates the correction data based on the external control signal.

6. The apparatus as claimed in claim 1 , wherein the control circuit detects an amount of time that the display panel has been in use, and wherein the control circuit generates the correction data based on the amount of time.

7. The apparatus as claimed in claim 1 , wherein the control circuit receives an external control signal from an external device, and wherein the control circuit generates the correction data based on the external control signal.

8. An apparatus, comprising:

a drive circuit that outputs a drive signal to a display panel; and

a control circuit that generates correction data and outputs the correction data to the drive circuit,

wherein the drive circuit adjusts the drive signal based on the correction data,

wherein the drive circuit comprises an electrode drive circuit,

wherein the electrode drive circuit comprises a scan drive circuit, which has a power supply and which generates a scan pulse, and

wherein the correction data is supplied to the power supply of the scan drive circuit.

9. The apparatus as claimed in claim 8 , wherein the drive signal comprises a drive voltage, and wherein the drive circuit adjusts the drive voltage based on the correction data.

10. The apparatus as claimed in claim 8 , wherein the control circuit detects a temperature of the display panel, and wherein the control circuit generates the correction data based on the temperature.

11. The apparatus as claimed in claim 10 , wherein the control circuit detects an amount of time that the display panel has been in use, and wherein the control circuit generates the correction data based on the amount of time.

12. The apparatus as claimed in claim 11 , wherein the control circuit receives an external control signal from an external device, and wherein the control circuit generates the correction data based on the external control signal.

13. The apparatus as claimed in claim 8 , wherein the control circuit detects an amount of time that the display panel has been in use, and wherein the control circuit generates the correction data based on the amount of time.

14. The apparatus as claimed in claim 8 , wherein the control circuit receives an external control signal from an external device, and wherein the control circuit generates the correction data based on the external control signal.

15. An apparatus, comprising:

a drive circuit that outputs a drive signal to a display panel; and

a control circuit that generates correction data and outputs the correction data to the drive circuit,

wherein the drive circuit adjusts the drive signal based on the correction data,

wherein the drive circuit comprises a first electrode drive circuit and a second electrode drive circuit,

wherein the correction data is supplied to the first electrode drive circuit and the second electrode drive circuit,

wherein the first electrode drive circuit comprises a first sustain drive circuit having a first power supply,

wherein the second electrode drive circuit comprises a second sustain drive circuit having a second power supply and a scan drive circuit having a third power supply, and

wherein the correction data is supplied to the first power supply, the second power supply, and the third power supply.

16. The apparatus as claimed in claim 15 , wherein the drive signal comprises a drive voltage, and wherein the drive circuit adjusts the drive voltage based on the correction data.

17. The apparatus as claimed in claim 15 , wherein the control circuit detects a temperature of the display panel, and wherein the control circuit generates the correction data based on the temperature.

18. The apparatus as claimed in claim 17 , wherein the control circuit detects an amount of time that the display panel has been in use, and wherein the control circuit generates the correction data based on the amount of time.

19. The apparatus as claimed in claim 18 , wherein the control circuit receives an external control signal from an external device, and wherein the control circuit generates the correction data based on the external control signal.

20. The apparatus as claimed in claim 15 , wherein the control circuit detects an amount of time that the display panel has been in use, and wherein the control circuit generates the correction data based on the amount of time.

21. The apparatus as claimed in claim 15 , wherein the control circuit receives an external control signal from an external device, and wherein the control circuit generates the correction data based on the external control signal.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2009
From: PIONEER CORPORATION (FORMERLY CALLED PIONEER ELECTRONIC CORPORATION); PIONEER DISPLAY PRODUCTS CORPORATION (FORMERLY SHIZUOKA PIONEER ELECTRONIC CORPORATION)
To: PANASONIC CORPORATION
Reel/Frame 023234/0158 →
RE-RECORD TO CORRECT A DOCUMENT PREVIOUSLY RECORDED AT REEL 014397, FRAME 0458. (CHANGE OF NAME) Recorded Sep 2, 2005
From: PIONEER CORPORATION; SHIZUOKA PIONEER CORPORATION
To: PIONEER CORPORATION; PIONEER DISPLAY PRODUCTS CORPORATION
Reel/Frame 016974/0450 →
CHANGE OF NAME Recorded Aug 18, 2003
From: SHIZUOKA PIONEER CORPORATION
To: PIONEER DISPLAY PRODUCTS CORPORATION
Reel/Frame 014397/0458 →