WO2003085630A1 - Plasma display - Google Patents
Plasma display Download PDFInfo
- Publication number
- WO2003085630A1 WO2003085630A1 PCT/JP2003/004199 JP0304199W WO03085630A1 WO 2003085630 A1 WO2003085630 A1 WO 2003085630A1 JP 0304199 W JP0304199 W JP 0304199W WO 03085630 A1 WO03085630 A1 WO 03085630A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plasma display
- display device
- noise filter
- back cover
- winding
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
- H01J11/44—Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/313—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being gas discharge devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
- H04N5/645—Mounting of picture tube on chassis or in housing
Definitions
- the present invention relates to a plasma display device known as a large-screen, thin, and lightweight display device.
- Background art
- plasma display devices have attracted attention as display panels (thin display devices) with excellent visibility, and higher definition and larger screens are being promoted.
- This plasma display device is roughly divided into
- C type and DC type there are C type and DC type, and there are two types of discharge type: surface discharge type and counter discharge type.However, due to the higher definition, larger screen, power consumption and simplicity of manufacturing, the AC type is currently Discharge type plasma display devices have become the mainstream.
- a transparent front substrate 1 such as a glass substrate
- a plurality of rows of stripe-shaped display electrodes 2 formed by pairs of scanning electrodes and sustaining electrodes are formed on a transparent front substrate 1 such as a glass substrate.
- a dielectric layer 3 is formed so as to cover the dielectric layer, and a protective film 4 is formed on the dielectric layer 3.
- the rear substrate 5 which is disposed opposite to the front substrate 1, there is an overhang so as to intersect the display electrodes 2 of the scanning electrodes and the sustain electrodes.
- a plurality of rows of striped data electrodes 7 covered with the coat layer 6 are formed.
- These substrates 1 and 5 are arranged so as to face each other with a minute discharge space therebetween so that the display electrode 2 of the scanning electrode and the sustain electrode and the data electrode 7 are almost orthogonal to each other, and the periphery is sealed.
- the discharge space is filled with one of helium, neon, argon, and xenon or a mixed gas as a discharge gas.
- the discharge space is divided into a plurality of sections by the partition walls 8, so that a plurality of discharge cells at the intersections of the display electrodes 2 and the data electrodes 7 are provided.
- Each of the discharge cells has a red, green, and blue color.
- the phosphor layers 9 are sequentially arranged for each color such that
- Fig. 9 shows the electrode arrangement of this plasma display panel.
- the scan electrode, sustain electrode, and data electrode have a matrix structure of M rows and XN columns, and M rows in the row direction.
- the scanning electrodes SCN 1 to SCNM and the sustain electrodes SUS 1 to SUSM are arranged in a row, and N columns of data electrodes D 1 to DN are arranged in the column direction.
- a periodic sustain pulse that is inverted to the above, sustain discharge is performed between the scan electrode and the sustain electrode, and a predetermined display is performed.
- the panel is mounted on the front side of the chassis member, a driving circuit for driving the panel is disposed on the rear side, and these units are mounted on the front side. It is configured by being housed in a housing consisting of a frame and a back cover (see Japanese Patent No. 2807672).
- a noise filter circuit arranged on the back side of the plasma display panel and having a noise filter; and a back cover made of a magnetic metal material and arranged on the back side of the plasma display panel so as to face the noise filter circuit.
- the noise filter comprises a core made of a magnetic material and a winding wound around the core, and is configured such that the direction of the lines of magnetic force in the core is substantially the same as the in-plane direction of the back cover.
- FIG. 1 is an exploded perspective view showing an internal arrangement structure of a plasma display device according to an embodiment of the present invention.
- FIG. 2 is a schematic sectional view showing the internal configuration of the plasma display device.
- FIG. 3 is a schematic plan view of the plasma display device with a back cover taken off.
- FIG. 4 is a front view showing a main configuration of the plasma display device.
- FIG. 5 is a side view showing a main configuration of the plasma display device.
- FIG. 6 is a top view showing a main configuration of the plasma display device.
- FIG. 7 is a front view showing a main configuration of a conventional plasma display device.
- FIG. 8 is a perspective view showing a schematic configuration of a panel of a conventional plasma display device.
- FIG. 9 is an explanatory view showing an electrode arrangement of a panel of a conventional plasma display device.
- BEST MODE FOR CARRYING OUT THE INVENTION a plasma display device according to an embodiment of the present invention will be described with reference to FIGS.
- the panel 10 shown in FIG. 1 The housing is composed of a front frame 11 made of resin or metal, and a back cover 12 made of a magnetic metal having iron or the like as a main component.
- the opening of the front frame 11 A front glass 13 made of glass or the like which also protects the optical filter and the panel 10 is disposed in the camera.
- the front glass 13 is provided with, for example, silver vapor deposition or a mesh-shaped metal member in order to suppress unnecessary radiation of electromagnetic waves.
- knock cover 12 is provided with a plurality of ventilation holes 12a for releasing heat generated in panel 10 or the like to the outside.
- the panel 10 is held by adhering to a front surface of a chassis member 14 made of an aluminum or the like which also serves as a heat sink for the panel and holding the components through a sheet-like heat conducting member 15, and the chassis member
- a plurality of circuit blocks 16 for driving the display of the panel 10 are attached to the rear side of the panel 14.
- the heat conduction member 15 is for efficiently transmitting the heat generated in the panel 10 to the chassis member 14 and discharging the heat.
- the circuit block 16 is provided with an electric circuit for driving and controlling the display of the panel 10, and an electrode lead-out portion drawn out from an edge of the panel 10 is provided with four sides of the chassis member 14. They are electrically connected by a plurality of flexible wiring boards (not shown) extending beyond the ⁇ section.
- a boss 14a for attaching the circuit block 16 and fixing the back cover 12 is formed on the rear surface of the chassis member 14 by integral molding using a die cast or the like.
- the chassis member 14 may be configured by fixing a fixing pin to an aluminum flat plate.
- 2 and 3 show a main configuration of a plasma display device according to an embodiment of the present invention.
- the plasma display device has a panel main body 21 having a chassis member 14 for heat dissipation arranged on the back side of a panel 10 having a configuration shown in FIG. 8, and a predetermined body as shown in FIG.
- a driving circuit 22 comprising a data driving circuit 22 1 for supplying data for discharging the discharge cells and a discharge driving circuit 22 2 for discharging and emitting the discharge cells of the panel 10, and a panel body 2 1 for the driving circuit 22
- a driving signal processing circuit 23 for supplying a signal for driving the driving circuit; a power supply circuit 24 having a capacitor input type AC-DC rectifying circuit for supplying power to the driving circuit 22 and the driving signal processing circuit 23;
- the noise filter circuit 25 is connected between the power supply circuit 24 and the AC power supply and has a noise filter.
- the panel body 21 is connected to the drive circuit 22 and the drive signal processing circuit 23 by a flexible wiring board 26. Although not shown, signal and power supply lines are connected between the circuits by conducting wires.
- the plasma display device has a front cover 28, which is formed by fixing a front glass 13 to a front frame 11 with a holding plate 27, and an iron cover. It has a back cover 12 made of a magnetic metal material mainly composed of a magnetic material.
- front cover 28 and the back cover 12 constitute a housing of the plasma display device.
- the noise filter circuit 25 A printed circuit board 252 constituting a noise filter circuit 25 is fixed on the printed circuit board 51, and a common mode noise filter 253 is mounted on the printed circuit board 252. Equipped with film capacitors, surge absorbing elements, and fuses for noise removal.
- FIG. 4 is a front view showing the noise filter
- FIG. 5 is a side view of the same
- FIG. 6 is a top view.
- A indicates the direction of the leakage magnetic flux.
- the common mode noise filter 25 3 usually uses a toroidal core 25 3 a composed of a closed magnetic circuit, and the toroidal core 25 3 a has a first winding 25 3 b and a second winding 25 3 c are arranged so as to face each other, and the direction connecting the opposite end portions 25 3 d of the first winding 25 3 b and the second winding 25 3
- the configuration is substantially the same as the in-plane direction. That is, the direction of the line of magnetic force of the toroidal core 255 a, which is a magnetic material constituting the noise filter 253, is substantially the same as the in-plane direction of the surface close to the back cover 12.
- FIG. 7 shows the mounting state of the noise filter 253 in the conventional plasma display device. That is, conventionally, the noise filter 25 is mounted in a direction in which the magnetic force line direction of the noise filter 25 is orthogonal to the in-plane direction of the back cover 12.
- the back cover 12 was affected by the leakage magnetic flux from 3, and due to the strength of the leakage magnetic flux, a vibration was generated in the back cover 12, thereby generating a noise sound.
- the peak value of the input AC current is larger than that of the active filter type.
- the low cost capacitor input type should be used in the conventional configuration.
- noise noise can be further reduced even if the power supply circuit 24 is of a condensed-put type.
- the input current is larger than that of AC200 to 240V.
- the back cover 12 also serves as an exterior housing.
- a case made of an external synthetic resin is used as the back cover 1. The same operation and effect can be obtained even when provided so as to cover from above.
- the direction of the magnetic force lines in the core of the magnetic material constituting the noise filter Is approximately the same direction as the in-plane direction of the cover, and the amount of leakage magnetic flux generated between the different-polarity windings of the AC line can be reduced to the back cover.
- the back cover it is possible to prevent the generation of noise sound in the audible range, which has been caused by the leakage to the loudspeaker.
- the present invention relates to a plasma display device, which is a large-screen, thin, and lightweight display device, and reduces the amount of leakage magnetic flux generated between different pole windings of an AC line of a power supply unit to a back cover. This can prevent the generation of noise sound in the audible range caused by the leakage of the leakage magnetic flux to the back cover.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- Plasma & Fusion (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Control Of Gas Discharge Display Tubes (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020037011381A KR100665419B1 (ko) | 2002-04-04 | 2003-04-02 | 플라즈마 디스플레이 장치 |
EP03743757A EP1381013B1 (en) | 2002-04-04 | 2003-04-02 | Plasma display device |
US10/468,231 US6946798B2 (en) | 2002-04-04 | 2003-04-02 | Plasma display apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002102339 | 2002-04-04 | ||
JP2002-102339 | 2002-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003085630A1 true WO2003085630A1 (en) | 2003-10-16 |
Family
ID=28786261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/004199 WO2003085630A1 (en) | 2002-04-04 | 2003-04-02 | Plasma display |
Country Status (6)
Country | Link |
---|---|
US (1) | US6946798B2 (ja) |
EP (1) | EP1381013B1 (ja) |
JP (1) | JP3882772B2 (ja) |
KR (2) | KR100665419B1 (ja) |
CN (1) | CN1229764C (ja) |
WO (1) | WO2003085630A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100365675C (zh) * | 2004-10-20 | 2008-01-30 | 乐金电子(南京)等离子有限公司 | 等离子体显示面板的维持噪音屏蔽结构 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1582105B (zh) * | 2003-08-04 | 2010-05-26 | 三星电子株式会社 | 显示装置及其方法 |
US7457120B2 (en) * | 2004-04-29 | 2008-11-25 | Samsung Sdi Co., Ltd. | Plasma display apparatus |
KR100669729B1 (ko) * | 2004-09-21 | 2007-01-16 | 삼성에스디아이 주식회사 | 플라즈마 디스플레이 장치 |
KR100730138B1 (ko) * | 2005-06-28 | 2007-06-19 | 삼성에스디아이 주식회사 | 플라즈마 디스플레이 장치 |
JP4850518B2 (ja) * | 2006-01-18 | 2012-01-11 | 株式会社日立製作所 | 電源回路及びそれを用いた映像表示装置 |
EP1821532A1 (en) * | 2006-02-20 | 2007-08-22 | LG Electronics Inc. | Image display apparatus |
KR100708744B1 (ko) * | 2006-03-28 | 2007-04-17 | 삼성에스디아이 주식회사 | 디스플레이 패널의 구동장치 |
JP4667504B2 (ja) * | 2006-07-20 | 2011-04-13 | 日立プラズマディスプレイ株式会社 | プラズマディスプレイ装置 |
JP5082779B2 (ja) | 2007-11-07 | 2012-11-28 | 株式会社日立製作所 | 平面型表示装置 |
US20100026925A1 (en) * | 2008-08-01 | 2010-02-04 | Esther Thompson | Dynamic image holder |
CN102194380A (zh) * | 2010-01-20 | 2011-09-21 | 三星电机株式会社 | 平板显示装置以及用于其的共模滤波器 |
KR101234875B1 (ko) | 2010-12-24 | 2013-02-19 | 삼성전기주식회사 | Pfc 미적용 전원부의 emi 필터 및 이를 포함하는 평판 디스플레이 장치 |
US8797476B2 (en) * | 2011-11-29 | 2014-08-05 | Shenzhen China Star Optoelectronics Technology Co. Ltd. | Circuit board cover-plate, liquid crystal module and display |
WO2013111196A1 (ja) * | 2012-01-27 | 2013-08-01 | パナソニック株式会社 | バックカバーを備えた映像表示装置 |
WO2023210954A1 (ko) * | 2022-04-28 | 2023-11-02 | 삼성전자주식회사 | 디스플레이 장치 및 전자장치 |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0334694A (ja) * | 1989-06-30 | 1991-02-14 | Hitachi Ltd | Crtディスプレイ装置 |
JPH03165428A (ja) * | 1989-11-22 | 1991-07-17 | Sony Corp | ディスプレイ装置 |
JPH07201581A (ja) * | 1993-12-29 | 1995-08-04 | Okaya Electric Ind Co Ltd | ノイズフィルタ |
JPH10125532A (ja) * | 1996-10-21 | 1998-05-15 | Sharp Corp | 電気機器用消磁装置 |
JPH10199447A (ja) * | 1997-01-09 | 1998-07-31 | Hitachi Media Electron:Kk | 陰極線管画像表示装置 |
JPH10336687A (ja) * | 1997-06-02 | 1998-12-18 | Sony Corp | 陰極線管 |
JPH11330886A (ja) * | 1998-05-08 | 1999-11-30 | Tdk Corp | 箱形ノイズフィルタ |
JP2000091143A (ja) * | 1998-09-10 | 2000-03-31 | Tdk Corp | ノイズフィルタ |
JP2000196977A (ja) * | 1998-12-25 | 2000-07-14 | Matsushita Electric Ind Co Ltd | プラズマディスプレイ装置のシ―ルド構造 |
JP2001068031A (ja) * | 1999-08-25 | 2001-03-16 | Pioneer Electronic Corp | プラズマディスプレイ装置 |
JP2001358494A (ja) * | 2000-06-12 | 2001-12-26 | Nec Corp | プラズマディスプレイパネルの画面フィルタ |
JP2002006757A (ja) * | 2000-06-20 | 2002-01-11 | Fujitsu General Ltd | 表示装置 |
JP2002258790A (ja) * | 2001-02-28 | 2002-09-11 | Hitachi Ltd | 表示装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2807672B2 (ja) | 1996-12-24 | 1998-10-08 | 松下電子工業株式会社 | プラズマディスプレイ装置 |
JPH10282896A (ja) * | 1997-04-07 | 1998-10-23 | Mitsubishi Electric Corp | 表示装置 |
JP4190734B2 (ja) * | 2001-01-15 | 2008-12-03 | ウシオ電機株式会社 | 誘電体バリア放電ランプ光源装置 |
-
2003
- 2003-04-02 CN CNB03800044XA patent/CN1229764C/zh not_active Expired - Fee Related
- 2003-04-02 KR KR1020037011381A patent/KR100665419B1/ko not_active IP Right Cessation
- 2003-04-02 EP EP03743757A patent/EP1381013B1/en not_active Expired - Fee Related
- 2003-04-02 KR KR1020057022085A patent/KR100851087B1/ko not_active IP Right Cessation
- 2003-04-02 US US10/468,231 patent/US6946798B2/en not_active Expired - Fee Related
- 2003-04-02 JP JP2003099099A patent/JP3882772B2/ja not_active Expired - Fee Related
- 2003-04-02 WO PCT/JP2003/004199 patent/WO2003085630A1/ja not_active Application Discontinuation
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0334694A (ja) * | 1989-06-30 | 1991-02-14 | Hitachi Ltd | Crtディスプレイ装置 |
JPH03165428A (ja) * | 1989-11-22 | 1991-07-17 | Sony Corp | ディスプレイ装置 |
JPH07201581A (ja) * | 1993-12-29 | 1995-08-04 | Okaya Electric Ind Co Ltd | ノイズフィルタ |
JPH10125532A (ja) * | 1996-10-21 | 1998-05-15 | Sharp Corp | 電気機器用消磁装置 |
JPH10199447A (ja) * | 1997-01-09 | 1998-07-31 | Hitachi Media Electron:Kk | 陰極線管画像表示装置 |
JPH10336687A (ja) * | 1997-06-02 | 1998-12-18 | Sony Corp | 陰極線管 |
JPH11330886A (ja) * | 1998-05-08 | 1999-11-30 | Tdk Corp | 箱形ノイズフィルタ |
JP2000091143A (ja) * | 1998-09-10 | 2000-03-31 | Tdk Corp | ノイズフィルタ |
JP2000196977A (ja) * | 1998-12-25 | 2000-07-14 | Matsushita Electric Ind Co Ltd | プラズマディスプレイ装置のシ―ルド構造 |
JP2001068031A (ja) * | 1999-08-25 | 2001-03-16 | Pioneer Electronic Corp | プラズマディスプレイ装置 |
JP2001358494A (ja) * | 2000-06-12 | 2001-12-26 | Nec Corp | プラズマディスプレイパネルの画面フィルタ |
JP2002006757A (ja) * | 2000-06-20 | 2002-01-11 | Fujitsu General Ltd | 表示装置 |
JP2002258790A (ja) * | 2001-02-28 | 2002-09-11 | Hitachi Ltd | 表示装置 |
Non-Patent Citations (1)
Title |
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See also references of EP1381013A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100365675C (zh) * | 2004-10-20 | 2008-01-30 | 乐金电子(南京)等离子有限公司 | 等离子体显示面板的维持噪音屏蔽结构 |
Also Published As
Publication number | Publication date |
---|---|
CN1229764C (zh) | 2005-11-30 |
EP1381013B1 (en) | 2011-06-08 |
KR100665419B1 (ko) | 2007-01-04 |
JP2004004706A (ja) | 2004-01-08 |
US20040196277A1 (en) | 2004-10-07 |
JP3882772B2 (ja) | 2007-02-21 |
CN1496542A (zh) | 2004-05-12 |
KR20030094270A (ko) | 2003-12-11 |
EP1381013A4 (en) | 2009-05-06 |
EP1381013A1 (en) | 2004-01-14 |
KR100851087B1 (ko) | 2008-08-08 |
US6946798B2 (en) | 2005-09-20 |
KR20050116167A (ko) | 2005-12-09 |
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