EP1215649A2 - Plasmabildschirm - Google Patents
Plasmabildschirm Download PDFInfo
- Publication number
- EP1215649A2 EP1215649A2 EP01000718A EP01000718A EP1215649A2 EP 1215649 A2 EP1215649 A2 EP 1215649A2 EP 01000718 A EP01000718 A EP 01000718A EP 01000718 A EP01000718 A EP 01000718A EP 1215649 A2 EP1215649 A2 EP 1215649A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rear wall
- cells
- electrodes
- plasma screen
- arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/296—Driving circuits for producing the waveforms applied to the driving electrodes
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/06—Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
Definitions
- the present invention relates to an arrangement with a plasma screen.
- the object of the present invention is to provide the circuits and power supplies Control of such a plasma screen to improve the radiation electromagnetic waves is reduced and additional shielding measures are superfluous.
- the object is achieved in a first way in that Arrangement with a plasma screen, which is between a viewer facing front translucent pane and a rear wall cells for generating pixels and which in the areas opposite outer edges of the rear wall for contacting the cells has electrical contacts, which by means of largely parallel current leads with arranged on the outside of the rear wall facing away from the cells electronic circuits of the type connected to the power supplies electrically isolated ends in a narrow contact area where an electrical contact between the power supplies on the one hand and the electrical circuits on the other will be produced.
- the Power leads to the connections of the electrodes of the plasma display do not like hitherto customarily only present in the edge areas of the plasma screen, but instead lead them over the entire back of the plasma screen and come from both sides in a narrow contact area perpendicular to the current leads.
- This Area of the plasma screen prevents antenna-shaped radiation from electromagnetic fields because the current leads come from both sides end electrically separated immediately next to each other.
- the radiated electromagnetic fields of the Power leads to the electrodes with the fields on the inside of the current wall runs and ideally lift each other on.
- the Manufacture power supplies inexpensively and technically simply by clicking on be applied to the back of the plasma screen.
- the embodiment according to claim 3 allows the reuse of the known existing Connections via flexible lines to a shield according to the invention To achieve claim 1.
- the present object is achieved in a second way by the subject matter of claim 4 solved.
- the current paths to the contact points of the electrodes can also be shortened in this way, by the circuits for controlling the pixels directly on the outside of the rear wall of a plasma screen are mounted. This will make the The leads to the electrode connections are shortened again.
- common buffer capacitors the current paths between the electronic circuits for the driver stages of the X electrodes and the Y electrodes. Together with the Design according to claim 1 is a particularly effective suppression of the radiation electromagnetic waves possible. At the same time is a solution with common ones Buffer capacitors much cheaper than with separate buffer capacitors for each Driver stage.
- an arrangement according to the invention mainly consists of the actual plasma screen 3, on the back of which there are power leads 2, which the plasma screen 3 with the electronic circuits for controlling the Connect the pixels of the plasma screen 3.
- the electronic circuits exist among other things from the two driver stages 6, 7, which are the two different Control electrode groups, the X electrodes and the Y electrodes.
- the driver stages get their electricity from a supply module 8, for example. a switching power supply.
- the pixels are selected by means of further circuits 4, 9, the circuit 4 selects the rows of the plasma screen 3 and the circuit 9 selects the columns.
- the pixels are selected by the two Circuits 4, 9 depending on the image information present. These are from provided a circuit 5 for image processing.
- a pixel If a pixel is activated, the pixel lights up and flows through the Electrodes and the current leads 2 and through the current leads between the Contacts 13 and the individual electrodes of the pixels are relatively high and above all high frequency currents. In doing so, electromagnetic waves from the current-carrying Compounds 2 emitted. These are recognizable in Figure 2 by thick black lines made, while only weak currents flow in the dashed lines, their electromagnetic Fields are negligible. The high currents span with the associated backflows on an area, with a large area having a high electromagnetic Radiation means. Therefore, with the present invention, these Surfaces are reduced so that the electromagnetic fields of the flowing currents and largely compensate for the backflowing currents. From a certain distance from the plasma screen 3, the fields are almost as good.
- the contact area 14 can also be shifted from the center, but it is important that it moves over the whole Width of the rear wall 11 extends transversely to the power supply lines 2.
- the current leads 2 are used directly as conductive Coating applied to the back of the rear wall 11.
- the back one Wall 11 is currently made of glass for structural reasons, but can also be made of one temperature-resistant other material, since transparency is not required and on the contrary, light from the pixels also lets through to the rear, which is undesirable is.
- the new construction of the power supply lines 2 offers the decisive advantage. While in conventional plasma screens the driver stages 6, 7 for the X and the Y electrodes are housed on separate boards and during voltage transitions the currents are conducted via the earth return, the invention does not Arrangement on such a current supply via the earth return. Furthermore, the Driver boards 6, 7 arranged centrally and via power supplies 2 with the X / Y electrodes connected. This can be achieved in that, as in FIG Power supply lines 2 (here flexible cables) for the X / Y electrodes up to the middle of the Plasma screen 3 are performed on the back. By means of separate Plug connections are connected to driver stages 6, 7 there.
- driver stages 6, 7 In order to further shorten the current paths, it makes sense to use the driver stages 6, 7 on one unite common circuit board. This can be seen in Figure 3. This is the radiation electromagnetic waves due to transfer currents between the driver stages 6, 7 decreased. Furthermore, the current leads 2 for the X / Y electrodes can now can be connected to driver stages 6, 7 via a common connector. At the same time, the two driver stages 6, 7 can use common buffer capacitors 1 use, which saves half of the capacitors.
- a further improvement is possible in that the circuit 4 for selecting the No longer line up on the flexible lines of the power supply lines 2, but directly the rear wall 11 of the plasma screen 3 are mounted.
- the power supplies 2 between Y electrodes and the circuit 4 for selecting the rows and its Connection to the X / Y driver stages 6, 7 can then be made by a conductive layer on the rear wall 11 of the plasma screen 3 as in Figure 4b;
- Figure 4a shows the conventional supply lines 2.
- the connection of the plasma screen 3 to the driver stages 6, 7 is inexpensive due to connectors and contact springs or other conductive flexible materials possible, the direct contact with the conductive layer of the Have power leads 2. In addition to reducing the radiation area, such offers Arrangement still has the advantage of increased magnetic coupling, which the Current distribution of the return flows improved.
- the power supply leads 2 each individual X electrode and each individual Y electrode on the front Glass pane 10 separated rearwards onto the outside of the rear glass pane 11 of the Plasma screen 3 and continue to about the middle, where they with the electronic Circuits (driver stages) 4, 6, 7 can be contacted.
- This is done in the same way with a narrow contact area 14 over the entire width as in the embodiment according to Claim 1, shown in Figure 6.
- the stage 4 for controlling the rows can also housed together with the X / Y driver stages 6, 7 on a common circuit board his. This embodiment can be seen in Figure 5.
- a transparent plastic pane can of course also be used or foil can be used if the stability of the entire plasma screen 3 is ensured.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of Gas Discharge Display Tubes (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
Claims (5)
- Anordnung mit einem Plasmabildschirm (3), welcher zwischen einer dem Betrachter zugewandten vorderseitigen lichtdurchlässigen Scheibe (10) und einer rückwärtigen Wand (11) Zellen zur Erzeugung von Bildpunkten aufweist und welcher in den Bereichen (13) sich gegenüberliegender Außenkanten der rückwärtigen Wand (11) zur Kontaktierung der Zellen elektrische Kontakte aufweist, welche mittels weitgehend parallel verlaufender Stromzuführungen (2) mit auf der den Zellen abgewandten Außenseite der rückwärtigen Wand (11) angeordneten elektronischen Schaltkreisen (4, 6, 7) der Art verbunden sind, dass die Stromzuführungen (2) elektrisch getrennt in einem schmalen Kontaktbereich (14) enden, wo ein elektrischer Kontakt zwischen den Stromzuführungen (2) einerseits und den elektrischen Schaltkreisen (4, 6, 7) andererseits hergestellt wird.
- Anordnung nach Anspruch 1,
dadurch gekennzeichnet, dass die Stromzuführungen (2) in Form von auf der den Zellen abgewandten Außenseite der rückwärtigen Wand (11) aufgebrachten Leiterbahnen ausgeführt sind. - Anordnung nach Anspruch 1,
dadurch gekennzeichnet, dass die Stromzuführungen (2) in Form von Kabeln ausgeführt sind. - Anordnung mit einem Plasmabildschirm (3), welcher zwischen einer dem Betrachter zugewandten vorderseitigen lichtdurchlässigen Scheibe (10) und einer rückwärtigen Wand (11) Zellen zur Erzeugung von Bildpunkten und auf der den Zellen abgewandten Außenseite der rückwärtigen Wand (11) angeordnete elektronische Schaltkreisen für die Ansteuerung von X-Elektroden (6), von Y-Elektroden (7) und der Reihen (4) aufweist, welche unmittelbar auf der Oberfläche der den Bildpunkten abgewandten Außenseite der rückwärtigen Wand (11) des Plasmabildschirms (3) befestigt sind und gemeinsame Pufferkondensatoren (1) für die elektronische Schaltkreise zur Ansteuerung von X-Elektroden (6) und Y-Elektroden (7) aufweisen.
- Anordnung nach Anspruch 1 oder 4,
dadurch gekennzeichnet, dass diese Anordnung ein Fernsehgerät oder Monitor ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10061722 | 2000-12-12 | ||
DE10061722A DE10061722A1 (de) | 2000-12-12 | 2000-12-12 | Plasmabildschirm |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1215649A2 true EP1215649A2 (de) | 2002-06-19 |
EP1215649A3 EP1215649A3 (de) | 2002-11-27 |
EP1215649B1 EP1215649B1 (de) | 2006-09-13 |
Family
ID=7666733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01000718A Expired - Lifetime EP1215649B1 (de) | 2000-12-12 | 2001-12-06 | Plasmabildschirm |
Country Status (7)
Country | Link |
---|---|
US (1) | US6753653B2 (de) |
EP (1) | EP1215649B1 (de) |
JP (1) | JP2002278468A (de) |
KR (1) | KR20020046216A (de) |
CN (1) | CN1365133A (de) |
DE (2) | DE10061722A1 (de) |
TW (1) | TW538396B (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2858709A1 (fr) * | 2003-08-07 | 2005-02-11 | Thomson Plasma | Circuit de commande d'un panneau de visualisation au plasma |
KR100627412B1 (ko) * | 2005-01-19 | 2006-09-22 | 삼성에스디아이 주식회사 | 플라즈마 표시 장치 및 그 구동 방법 |
CN102014602B (zh) * | 2010-12-17 | 2013-03-06 | 惠州市科信达电子有限公司 | 一种提高大功率器件及其模组电磁兼容性能的方法 |
JP6694292B2 (ja) * | 2016-02-16 | 2020-05-13 | シチズン時計株式会社 | Ledモジュール |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0962226A (ja) * | 1995-08-28 | 1997-03-07 | Nec Corp | 表示パネルの駆動回路 |
JPH1141545A (ja) * | 1997-07-18 | 1999-02-12 | Fujitsu General Ltd | プラズマ表示ユニット |
US5952986A (en) * | 1996-04-03 | 1999-09-14 | Fujitsu Limited | Driving method of an AC-type PDP and the display device |
JP2000056701A (ja) * | 1998-08-05 | 2000-02-25 | Pioneer Electron Corp | 二次元表示装置の駆動モジュール取付構造 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0428145Y2 (de) * | 1987-09-09 | 1992-07-07 | ||
JP3929605B2 (ja) | 1998-06-24 | 2007-06-13 | クボタ松下電工外装株式会社 | 塗装装置 |
US7161780B2 (en) | 2003-02-03 | 2007-01-09 | Leviton Manufacturing Co., Inc. | Circuit interrupting device with single throw, double mode button for test-reset function |
-
2000
- 2000-12-12 DE DE10061722A patent/DE10061722A1/de not_active Withdrawn
-
2001
- 2001-12-06 EP EP01000718A patent/EP1215649B1/de not_active Expired - Lifetime
- 2001-12-06 DE DE50110998T patent/DE50110998D1/de not_active Expired - Fee Related
- 2001-12-08 CN CN01144838A patent/CN1365133A/zh active Pending
- 2001-12-10 JP JP2001375722A patent/JP2002278468A/ja not_active Ceased
- 2001-12-10 KR KR1020010077944A patent/KR20020046216A/ko not_active Application Discontinuation
- 2001-12-11 US US10/014,240 patent/US6753653B2/en not_active Expired - Fee Related
-
2002
- 2002-01-18 TW TW091100756A patent/TW538396B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0962226A (ja) * | 1995-08-28 | 1997-03-07 | Nec Corp | 表示パネルの駆動回路 |
US5952986A (en) * | 1996-04-03 | 1999-09-14 | Fujitsu Limited | Driving method of an AC-type PDP and the display device |
JPH1141545A (ja) * | 1997-07-18 | 1999-02-12 | Fujitsu General Ltd | プラズマ表示ユニット |
JP2000056701A (ja) * | 1998-08-05 | 2000-02-25 | Pioneer Electron Corp | 二次元表示装置の駆動モジュール取付構造 |
Non-Patent Citations (4)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07, 31. Juli 1997 (1997-07-31) -& JP 09 062226 A (NEC CORP), 7. März 1997 (1997-03-07) * |
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05, 31. Mai 1999 (1999-05-31) -& JP 11 041545 A (FUJITSU GENERAL LTD), 12. Februar 1999 (1999-02-12) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05, 14. September 2000 (2000-09-14) -& JP 2000 056701 A (PIONEER ELECTRON CORP;SHIZUOKA PIONEER KK), 25. Februar 2000 (2000-02-25) * |
YAMAMOTO T ET AL: "A 40-IN.-DIAGONAL HDTV PLASMA DISPLAY" SID INTERNATIONAL SYMPOSIUM - DIGEST OF TECHNICAL PAPERS. SEATTLE, MAY 16 - 21, 1993, PLAYA DEL REY, SID, US, Bd. 1 VOL. 24, 16. Mai 1993 (1993-05-16), Seiten 165-168, XP000470753 ISSN: 0097-966X * |
Also Published As
Publication number | Publication date |
---|---|
JP2002278468A (ja) | 2002-09-27 |
EP1215649A3 (de) | 2002-11-27 |
KR20020046216A (ko) | 2002-06-20 |
DE50110998D1 (de) | 2006-10-26 |
DE10061722A1 (de) | 2002-06-13 |
US20020070907A1 (en) | 2002-06-13 |
CN1365133A (zh) | 2002-08-21 |
TW538396B (en) | 2003-06-21 |
US6753653B2 (en) | 2004-06-22 |
EP1215649B1 (de) | 2006-09-13 |
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