Check patentability & draft patents in minutes with Patsnap Eureka AI!

Plasma display device

A plasma and display device technology, applied in static indicators, transducer shells/cabinets/stands, TVs, etc., can solve problems such as noise mixing, and achieve the effect of preventing output noise

Inactive Publication Date: 2011-04-13
PANASONIC CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, in the plasma display device having the structure as in Patent Document 1, when the light emitting operation of the PDP is controlled by the above-mentioned driving method, noise may be mixed into the sound emitted from the speaker.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Plasma display device
  • Plasma display device
  • Plasma display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] Hereinafter, an AC type plasma display device as an example of the plasma display device according to the present invention will be described.

[0060] FIG. 1 is a block diagram showing the structure of a plasma display device according to an embodiment of the present invention.

[0061] As shown in FIG. 1, the plasma display device 100 includes a demodulator 101, a separation circuit 102, a scan number conversion unit 103, a subfield conversion unit 104, a control circuit 105, a plasma display screen (hereinafter referred to as PDP) 106, data driver 107 , scan driver 108 , sustain driver 109 , sound circuit 110 , and speaker 111 . In addition, as PDP106, it is possible to use the Figure 18 The plasma display described in .

[0062] The demodulator 101 demodulates a television broadcast signal. The separation circuit 102 separates the television broadcast signal demodulated by the demodulator 101 into an image signal VS, a horizontal synchronization signal H, a vert...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A voice circuit is arranged on a chassis member. The voice circuit includes a voice outputting amplifier and a high-frequency bypass part. An output terminal of the voice outputting amplifier is connected to one edge of a voice coil through wiring and is grounded through the high-frequency bypass part. The voice outputting amplifier supplies the voice coil with a voice current through the wiring.The resonance frequency of the high-frequency bypass part is set at the same frequency as that of a discharge current flowing in the chassis member. A high-frequency induction current generated in the voice circuit due to the discharge current flowing in the chassis member is permitted to flow into a grounding terminal through the high-frequency bypass part.

Description

technical field [0001] The present invention relates to a plasma display device having an audio circuit. Background technique [0002] A plasma display device using a plasma display panel (hereinafter, abbreviated as PDP) as an active light-emitting image display has an advantage of being able to achieve thinner thickness and larger screen size. In this plasma display device, an image is displayed by utilizing light emission of a discharge cell constituting a pixel during discharge. [0003] In the above-mentioned plasma display device, a PDP assembly is formed by utilizing a PDP having electrodes on a pair of transparent glass substrates, a base member holding the PDP, and a display drive circuit block mounted on the base member (for example, refer to Patent Document 1). [0004] Fig. 15 is a perspective view of a part of a conventional AC-type PDP. In addition, FIG. 16 is a sectional view taken along line A-A of FIG. 15 , Figure 17 It is a sectional view taken along li...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/02H04N5/60H04N5/64H04R1/02G09G3/20G09G3/28G09G3/291G09G3/296G09G3/298H04N5/66H04R3/00
CPCH04R3/00H04N5/60H04N21/426
Inventor 山手万典
Owner PANASONIC CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com