EP1544835A1 - Procédé pour transmettre des données d'image vers un module d'affichage d'un panneau d'affichage et panneau d'affichage - Google Patents

Procédé pour transmettre des données d'image vers un module d'affichage d'un panneau d'affichage et panneau d'affichage Download PDF

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Publication number
EP1544835A1
EP1544835A1 EP03405904A EP03405904A EP1544835A1 EP 1544835 A1 EP1544835 A1 EP 1544835A1 EP 03405904 A EP03405904 A EP 03405904A EP 03405904 A EP03405904 A EP 03405904A EP 1544835 A1 EP1544835 A1 EP 1544835A1
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EP
European Patent Office
Prior art keywords
data
control unit
image
unit
switching unit
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.)
Withdrawn
Application number
EP03405904A
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German (de)
English (en)
Inventor
Andreas Ronchetti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dicom AG
Original Assignee
Dicom AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dicom AG filed Critical Dicom AG
Priority to EP03405904A priority Critical patent/EP1544835A1/fr
Publication of EP1544835A1 publication Critical patent/EP1544835A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
    • G09G2370/045—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller using multiple communication channels, e.g. parallel and serial
    • G09G2370/047—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller using multiple communication channels, e.g. parallel and serial using display data channel standard [DDC] communication
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators

Definitions

  • the present invention relates to a method for Transmission of image information from one or more Data sources to a display unit of a flat screen and a flat screen operating according to this method according to the preamble of claim 1 or 8.
  • the invention particularly relates to flat screens large-scale display units, as television monitors or Scoreboards are used.
  • US Pat. No. 6,480,180 B1 has a flat screen for the Receiving image information, preferably one with a Video card (English: Graphic Controller) connectable Interface on which the transmission of image information using the LVDS technology described in [4], An Overview of LVDS Technology (LVDS: Low Voltage Differential Signaling), National Semiconductor 1998, Publication Number AN012326 (see also IEEE Standard 1596.3).
  • Derivatives of LVDS technology are, for example, in the TFT-LCD Source Driver LH16AD / AF applied RSDS TM technology and the TMDS TM technology used by Silicon Image Inc. To realize higher bandwidths is also the dual LVDS method used, where a doubling of the Data lines is provided.
  • Image data 121 and control data 122 are sent to an LVDS transmission unit 11 supplied there by means of a clock signal in three serial LVDS data streams converted over the Twisted pair cables 111, 112, 113 for Transmitted LVDS receiving unit 21 and there by means of over another two-wire line 114 transmitted clock signal and a phase locked loop PLL regenerated and then deserialized.
  • From the recovered image data 211 and Control data 212 is in the downstream Image controller 22 generates data and control signals, each for example using a TTL technology Data bus 221, 222 transmitted to the driver units 41, 42 become.
  • EMI / electromagnetic interference are the image data optionally via LVDS signals via a Two-wire line 223 supplied to the data driver 42, as this in [3].
  • the video card 100 and the screen unit 2 are further over a normally two lines bidirectional data bus 115 connected to each other via the Configuration data are transferable.
  • the video card 100 can via the data bus 115, therefore, flat panel-specific data, so-called "EDID data" (Extended Display IDentification) a storage unit 23, e.g. an EEPROM (Electrically Erasable And Programmable Read Only Memory) Realization of the so-called Plug & Play functionality needed.
  • EDID data Extended Display IDentification
  • EEPROM Electrically Erasable And Programmable Read Only Memory Realization of the so-called Plug & Play functionality needed.
  • the transmission of the EDID data takes place after the DDC (display Data Channel) standard, which is described there in more detail.
  • the screen unit 2 shown in Figure 1 can by means of individual components are built discretely. Instead can also be an integrated circuit, for example the Timing Controller FPD 87310 from National Semiconductor Corporation, used.
  • On-screen display modules or display modules or Picture-in-picture display modules by means of which, as in [6], US 6,369,858 B1, the image data OSD image data can be superimposed. That instead of the video card 100 image data provided becomes temporary OSD image data switched through, by means of which, for example Configuration data can be displayed.
  • the image information to be processed by the video card 100 are for example one or more internal or external data sources, such as a Personal computer 1a, a drive 1b for optical Data carrier, a TV tuner 1c, an adapter 1d or more Modules 1n supplied.
  • a Personal computer 1a a personal computer 1a
  • a drive 1b for optical Data carrier a TV tuner 1c
  • an adapter 1d or more Modules 1n supplied.
  • the image signals of these data sources 1a,..., 1n from an associated one Personal computer 1x processed and over a data connection 60 is supplied to the graphics module 12 of the video card 100.
  • Figure 1 is also shown symbolically that the data sources mentioned including the video card 100 and a computer card 1n can also be integrated in the flat screen.
  • the Connecting device is in this case a so-called Backplane or provided with connectors Circuit board with which the video card 100 and the as Plug-in cards or assemblies realized data sources 1a, ..., 1n are connectable. Due to the space within the housing of a flat screen are also several Backplanes usable.
  • WO 02/25943 is as a multimedia playback device trained flat screen known in the for the Processing a television signal necessary modules as well as the Modules of a personal computer are integrated.
  • the user can therefore either a demodulated television or a the personal computer modules output video signal on the Display unit.
  • the image data are from a video card processed and supplied to the display unit.
  • the present invention is therefore based on the object to create a flat screen, the more advantageous configurable, in terms of possible applications and the used modules, especially after several Operating years more easily expandable and thus the needs better customizable by the user.
  • the present invention is also the object of a suitable Method for transmitting image information from one or more multiple data sources to a display unit of a Indicate flat screen.
  • the method is used to transmit image information from at least one data source to an image control unit, which controls the display unit of a flat screen.
  • those of the at least one or multiple data sources for example by means of TTL signals (TTL: Transistor Transistor Logic) or LVDS signals, given image information separated from each one Input of a switching unit supplied by means of the Image information of one of the data sources to one with the Picture control unit connected through the first output become.
  • TTL signals Transistor Transistor Logic
  • LVDS signals given image information separated from each one Input of a switching unit supplied by means of the Image information of one of the data sources to one with the Picture control unit connected through the first output become.
  • the flat screen without inserted Data sources sold giving the user the opportunity has one in a suitable card or assembly format available data source, which in performance and quality the Perceptions of the user corresponds to the flat screen use.
  • the suitable for the delivery of image information and this for example, with a graphics module provided data sources can therefore be selected by means of the switching unit and connected to the image control unit of the flat panel become.
  • a computer card one with a Disk or a data line connected or connectable adapter module and / or a TV tuner via Connectors or one or more backplanes with the Connecting unit connectable.
  • One with the display unit, the driver units, the Image controller and provided with a backplane Flat screen can therefore be equipped with any data sources and thus be configured and expanded as desired.
  • a Retrofitting and expansion is also at a later date Time easily possible, so the investment in the costly centerpiece of the flat screen, the Display unit, long-term protection.
  • the data sources that have their own graphics module are connected to the services of the relevant data sources adjusted, therefore, can be separated independently of one provided video card inserted into the flat screen and be connected to the image control unit. This is Especially advantageous if a data source with available at the time of production of the flat screen Video cards is no longer compatible, according to some Operating years is used in the flat screen.
  • there Data sources can be used in the flat screen with the corresponding interface of the image control unit are compatible.
  • the Interface of the image control unit to the requirements of each connected flexibly, thereby the flexibility and compatibility of the flat screen is further increased.
  • the plug & play functionality is therefore expanded by not only, as with the DCC standard, the Side of the data source to the side of the data sink, but also or possibly only the side of the data sink to the Page of the data source.
  • the input lines via switches with the Connected output lines.
  • the encoded and / or serial signals and Data of the connected data sources can be changed unchanged switched through or even before switching outside or decoded within the switching unit and / or be deserialized. Unless the data streams are deserialized, i. be converted serially / in parallel, result in a lower number of lines to be switched and less interference.
  • the decoding and deserialization Therefore, it is preferably done in one in the image control unit integrated receiver, such as a timing controller Type FPD 87310 from National Semiconductor.
  • the switching unit is preferably from a Controlled system control unit, which, wirelessly or wired, control signals from one of the user operable input unit can be fed.
  • the System control unit is further preferably by means of a guided outside of the switching unit or by the Switching unit connected first data bus with the Control units of the data sources connected or connectable, so that these can be controlled by the user via the system control unit are.
  • configurations and functions are the Data sources adjustable or data channels selectable, the preferably by means of the OSD functionality on the screen can be displayed.
  • configuration data such as EDID data
  • EDID data designed to be the appropriate Lines from the associated input of the switching unit via a second data bus to that with the image control unit connected first output or to one with the System controller connected second output switched to the in the image control unit or the configuration data provided in the system controller if necessary, access the system controller via a third data bus supplied from the image control unit become.
  • the second one provided for the transmission of configuration data Data bus can also be advantageous for controlling the data sources be used. It should be noted that the Configuration channel traditionally for Plug & Play Functionality is used and after initialization of the Data sources are hardly any more burdened and beneficial for Control functions can be used. Furthermore, over the second data bus and the system controller too Configuration requirements for the image controller transferable.
  • FIG. 1 shows a device for the transmission of Image information from a graphics module 12 one in one Flat screen video card 1 provided with internal or external data sources 1a, ..., 1n is connectable to a in a screen unit 2 of a flat screen provided, serving as a timing controller Image control unit 22, which with a gate drive unit 41 and a data driver unit 42, by means of which the individual pixels of an image matrix 43 of the display unit 4 be switched.
  • a timing controller Image control unit 22 which with a gate drive unit 41 and a data driver unit 42, by means of which the individual pixels of an image matrix 43 of the display unit 4 be switched.
  • FIG. 2 shows a schematic representation of an inventive Flat screen with a switching unit 24, by means of the image information of one of several Data sources 1a, ..., 1n to the image control unit 22 switched are.
  • the data sources 1a, ..., 1n include, for example, a Computer card, one with a disk or a Data line connected or connectable adapter module, one Video card and / or a TV tuner.
  • the flat screen has Further, a system control unit 25, to which of a Remote control 5 via a radio interface 26 instructions are transferable, by means of which the system control unit 25 the Switching unit 24 and possibly also the Data sources 1a, ..., 1n controls that with one of the processing image data serving graphics module 12 and at least one Processor 14 are provided.
  • the TV tuner over the Switching unit 24 is connected to the image control unit 22 and a desired TV channel are set.
  • the definitions of the interface and / or in the Image controller 22 implemented processes to the Data sources 1a, ..., 1n adapted.
  • the Data sources 1a, ..., 1n based on identification data, for example, standardized EDID data, the Flat screen.
  • the Flat screen in particular the image control unit 22 and their interface 21 (see Figure 7), depending on selected data source 1a; ...; 1n be configured.
  • the classic plug & play is therefore extended. Starting from the Flat screen can therefore different maps be inserted, after which the configuration of the Flat screen changes as needed.
  • the system controller 25 therefore preferably has reading and Write permissions to those in the data sources 1a, ..., 1n and / or configuration data present in the flat screen read and change.
  • the configuration data will be during processing preferably by means of the OSD (On Screen Display - Functionality) on the flat screen. Corresponding methods are known from [8].
  • FIG. 2 also shows that also other signals and / or data, such as audio signals, over lines 9XX and the switching unit 24 from the active data source 1a; ...; 1n a data or signal processing module 28, optionally a multi-channel audio amplifier, can be fed whose output signals via lines 280, for example a sound amplifier, speakers, a data processing unit or another display unit can be fed.
  • the system controller 25 and the switching unit 24 are preferably on a backplane 30 (a printed Circuit), to which over at least two Contact strips, such as power strips or sockets, 3 two or multiple data sources 1a, ..., 1n are connectable and the via a contact strip, such as a power strip or a Socket, 300 is connected to the image control unit 22.
  • the Image control unit 22 is also provided on the backplane 30 be. This is particularly advantageous if the Image control unit 22 via LVDS lines 223 and 224 (LVDS, TMDS, RSDS, dual LVDS, dual TMDS, dual RSDS, etc.) with the Driver units (Sourcedriver 42 and Gatedriver 41) connected is, as shown schematically in Figure 2.
  • the system control unit 25, the image control unit 22 and the switching unit 24 in pairs or threes, optionally including other components, especially interface units, in a single module or integrated in an integrated circuit (IC).
  • the switching unit 24 When using the switching unit 24 is preferably, note that there are no phase shifts between the individual signals (for example, the RGB image signals) with each other or even relative to one optionally provided clock signal, the is transmitted in parallel. If differences in transit time in the Individual signal paths occur, these are preferably by means of delay circuits or delay lines compensated. These optionally adjustable Delay circuits or delay lines are in Figure 2 symbolically represented as a unit 248.
  • FIG. 3 shows the switching unit 24 with two of n Inlets 241a, 241n, to which, via a backplane 30, a first or a second data source 1a; 1n, for example one Computer card and a TV tuner, are connected.
  • the Transmission of the image information from the data sources 1a and 1n to fürschaltetechnik 24 takes place as the flat screen of FIG. 1 by means of LVDS transmitting and receiving units 11, which are supplied with TTL signals and TTL signals be delivered.
  • the TTL signals present at the input 241n the second data source 1n selected by the user are preferably connected via the switching unit 24 connection-oriented channel switching to its output 242 connected to the image control unit 22 is.
  • a second data bus 82 by means of its flat screen-specific data, for example EDID data (see the comments on FIG. 1), from the storage unit 23 of the image control unit 22 are transferable.
  • EDID data see the comments on FIG. 1
  • the switching unit 24 is further provided via an input 244 and a fourth data bus 84 having an output 251 of System control unit 25, which the switching unit 24 controls according to the instructions of the user.
  • Basics of switching through lines as well as the necessary control are, for example, in [8], F. Bergmann, H.J. Gerhardt, Taschenbuch der consultancymunikation, subuchverlag für, Hanser Verlag, Kunststoff 1999, pages 296-309.
  • For controlling the switching unit 24 is in the system control unit 25, for example a Single-chip computer, a corresponding control module 259 implemented.
  • the system control unit 25 is also via a first Data bus 81 with the connected data sources 1a, ..., 1n connected so that the user through the remote 5 and the system control unit 25 or another in it provided control module 258 the data sources 1a, ..., 1n according to the intended functions in a known manner can control.
  • the first data bus 81 from a port (input and output) 254 the system controller 25 to a port 245 of Through-switching unit 24 and therethrough to each selected data source 1a switched through.
  • the second, the Transfer of configuration data serving data bus 82 is in this embodiment via a port 243 of Switching unit 24 to a corresponding port 252 of the system control unit 25 through.
  • Configuration data is therefore the data sources 1a, ..., 1n from the system control unit 25 which transmits thereto another port 253 and a third data bus with the Picture control unit 22 and the therein provided Storage unit 23 is connected.
  • the system controller 25 is therefore able to retrieve configuration data from the Data sources 1a, ..., 1n and the image control unit 22 query to examine, if necessary, to change and to the data sources 1a, ..., 1n and the image control unit 22 back to a Compatibility of the configurations to achieve.
  • the image control unit 22 using data from the data source 1a were read out.
  • Processing of these configuration procedures is in the System controller 25 a corresponding configuration module 259 provided.
  • the second data bus 82 is primarily for the transmission of Configuration data is used, this remains Completion of the configuration procedures mostly unused. at 5 of the embodiment of the invention shown is the second data bus 82 therefore also for the transmission of control data used.
  • Existing transmission devices, in particular standardized connectors can therefore be used in this solution be used unchanged to the data sources 1a, ..., 1n with the system control unit 25 to connect.
  • FIG. 6 shows the switching unit 24 of FIG. 2 with therein integrated receiving devices 21 for the encoded Image signals.
  • the integration of an LVDS receiving device is National's FPD 87310 timing controller Semiconductor realized and is therefore also in the Switching unit 24 possible, reducing the effort on the printed circuit can be significantly reduced.
  • the Switching unit 24 for transmission and switching of encoded and serialized signals, such as LVDS signals, intended.
  • LVDS signals encoded and serialized signals
  • Image control unit 22 may in this case be the timing controller to be used by National Semiconductor FPD 87310 in which the LVDS receiving unit is already integrated.
  • the invention has been described in preferred embodiments and shown. Based on the teaching of the invention are however, further expert designs feasible. In particular, the supply of power supply lines or devices in expert Realizable manner, by means of which the insertion of a Data source 1a detected and the system control unit 25th can be reported. Furthermore, there are different possibilities for arrangement of one or more backplanes possible with the present, for example, in the card format Data sources 1a, ..., 1n are connectable. It is also essential that the present invention with various existing Standards and future standards for encoding, Transmission and decoding as well as processing of data, in particular image and sound information, possible. The advantage The present invention is well known that these due to the achieved modularity and flexibility also for future ones Generations of data sources, image processing units, especially timing controllers, as well as driver stages and Display units of any technology is applicable.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
EP03405904A 2003-12-17 2003-12-17 Procédé pour transmettre des données d'image vers un module d'affichage d'un panneau d'affichage et panneau d'affichage Withdrawn EP1544835A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03405904A EP1544835A1 (fr) 2003-12-17 2003-12-17 Procédé pour transmettre des données d'image vers un module d'affichage d'un panneau d'affichage et panneau d'affichage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03405904A EP1544835A1 (fr) 2003-12-17 2003-12-17 Procédé pour transmettre des données d'image vers un module d'affichage d'un panneau d'affichage et panneau d'affichage

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EP1544835A1 true EP1544835A1 (fr) 2005-06-22

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EP03405904A Withdrawn EP1544835A1 (fr) 2003-12-17 2003-12-17 Procédé pour transmettre des données d'image vers un module d'affichage d'un panneau d'affichage et panneau d'affichage

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012059532A1 (fr) * 2010-11-03 2012-05-10 Mirror Image Ag Système d'affichage
CN113035102A (zh) * 2019-12-25 2021-06-25 西安诺瓦星云科技股份有限公司 显示屏控制装置和显示屏控制系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896318A2 (fr) * 1997-08-04 1999-02-10 Compaq Computer Corporation interconnexion entre ordinateur personnel et affichage dans un environnement multimédia
US20020113907A1 (en) * 2000-06-20 2002-08-22 Olympus Optical Co., Ltd. Display system and microdisplay apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0896318A2 (fr) * 1997-08-04 1999-02-10 Compaq Computer Corporation interconnexion entre ordinateur personnel et affichage dans un environnement multimédia
US20020113907A1 (en) * 2000-06-20 2002-08-22 Olympus Optical Co., Ltd. Display system and microdisplay apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012059532A1 (fr) * 2010-11-03 2012-05-10 Mirror Image Ag Système d'affichage
CN113035102A (zh) * 2019-12-25 2021-06-25 西安诺瓦星云科技股份有限公司 显示屏控制装置和显示屏控制系统
CN113035102B (zh) * 2019-12-25 2023-06-16 西安诺瓦星云科技股份有限公司 显示屏控制装置和显示屏控制系统

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