Capacitive-load driving circuit and plasma display apparatus using the same

• US 9,305,484 B2
• Filed: 12/02/2014
• Issued: 04/05/2016
• Est. Priority Date: 09/29/2000
• Status: Expired due to Fees

• Current Assignee: Maxell, Ltd.
• Original Assignee: Hitachi Maxell Limited (Hitachi, Ltd.)
• Inventors: Sano, Yuji, Takagi, Akihiro, Kishi, Tomokatsu, Kawada, Toyoshi, Inoue, Hirokazu
• Primary Examiner(s): Leiby, Christopher E
• Application Number:
  US14/557,883
• Publication Number:
  US 20150084844A1
• Time in Patent Office: 490 Days
• Field of Search: 345/41, 345/46, 345 60- 72, 345/211
• US Class Current: 1/1
• CPC Class Codes: G09G 2310/0289 Details of voltage level shifters arranged for use in a driving circuit
• CPC Class Codes: G09G 2330/02 Details of power systems and of start or stop of display operation
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2330/045 Protection against panel overheating
• CPC Class Codes: G09G 3/28 using luminous gas-discharge panels, e.g. plasma panels
• CPC Class Codes: G09G 3/296 Driving circuits for producing the waveforms applied to the driving electrodes
• CPC Class Codes: G09G 3/2965 using inductors for energy recovery
• CPC Class Codes: H01J 11/26 Address electrodes
• CPC Class Codes: H05B 44/00 Circuit arrangements for operating electroluminescent light sources for operating light emitting diodes H05B45/00

Abstract

A plasma display apparatus including a capacitive load and a driving circuit is provided. The plasma display apparatus includes a driving power source supplying a drive voltage to the capacitive load and a reference potential terminal supplying a reference potential to the capacitive load. A drive IC is coupled to the driving power source.

Claims

1. A flat panel display apparatus comprising a display panel having a plurality of display cells and a driving circuit for driving the display panel,

the driving circuit including:

a driving power supply source to generate a driving voltage;

a driving module in which a drive IC to drive the plurality of display cells of the display panel and a power supply terminal to supply power to the drive IC are formed to be a module; and

a power distributor that is arranged outside the driving module and that is connected between the driving power supply source and the power supply terminal of the driving module, and

the driving voltage being supplied to the power supply terminal of the driving module via the power distributor,

wherein an impedance of the power distributor is equal to or higher than one-tenth of a conductive impedance of the drive IC.

2. The flat panel display apparatus according to claim 1, wherein the power distributor is a resistive element.

3. The flat panel display apparatus according to claim 1, wherein the driving module includes a plurality of drive ICs.