Display panel drive apparatus

• US 20040201546A1
• Filed: 04/13/2004
• Published: 10/14/2004
• Est. Priority Date: 04/14/2003
• Status: Active Grant

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Pioneer Corporation
• Inventors: Matsumoto, Yukihiro, Masumura, Yuuki
• Granted Patent: US 7,425,934 B2
• Time in Patent Office: Days
• US Class Current: 345/3.1
• CPC Class Codes: G09G 2330/027 Arrangements or methods related to powering off a display
• CPC Class Codes: G09G 2330/04 Display protection
• CPC Class Codes: G09G 3/2092 Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165
• CPC Class Codes: G09G 3/2965 using inductors for energy recovery

Abstract

A display-panel-drive apparatus having a drive unit that drives the display panel and a control unit that outputs control signals for controlling said drive unit to said drive unit, the display-panel-drive apparatus is provided with: a drive board of the drive unit; a control board of the control unit; a transmission line that transmits the control signals from the control board to the drive board by way of a removable connector; a detection device that detects when said connector is disconnected; and a control device that controls said drive unit when the detection device detects that the connector is disconnected; and wherein the detection device detects that said connector is disconnected by detecting when the connection terminals of the connector are disconnected.

Claims

1. A display-panel-drive apparatus having a drive unit that drives the display panel and a control unit that outputs control signals for controlling said drive unit to said drive unit, the display-panel-drive apparatus comprising:

a drive board of said drive unit;

a control board of said control unit;

a transmission line that transmits said control signals from said control board to said drive board by way of a removable connector;

a detection device that detects when said connector is disconnected; and

a control device that controls said drive unit when said detection device detects that said connector is disconnected; and

wherein

said detection device detects that said connector is disconnected by detecting when the connection terminals of said connector are disconnected.

2. The display-panel-drive apparatus of claim 1, wherein said detection device is located on said control board.

3. The display-panel-drive apparatus according to claim 1, wherein said control device stops operation of said drive device when said detection device detects that said connector is disconnected.

4. The display-panel-drive apparatus according to claim 1, wherein said display-panel-drive apparatus drives a plasma display panel as the display panel.

5. The display-panel-drive apparatus according to claim 4, wherein said control signals are signals that cause said drive unit to output scan pulses given to successive display lines for setting some of the discharge cells located on said plasma-display panel as light-emitting cells and some as non-emitting cells.