EP1507253A2 - Adapteur d'affichage - Google Patents

Adapteur d'affichage Download PDF

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Publication number
EP1507253A2
EP1507253A2 EP04010486A EP04010486A EP1507253A2 EP 1507253 A2 EP1507253 A2 EP 1507253A2 EP 04010486 A EP04010486 A EP 04010486A EP 04010486 A EP04010486 A EP 04010486A EP 1507253 A2 EP1507253 A2 EP 1507253A2
Authority
EP
European Patent Office
Prior art keywords
display
display adapter
graphics card
data
display device
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Withdrawn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
EP04010486A
Other languages
German (de)
English (en)
Other versions
EP1507253A3 (fr
Inventor
Andreas Kaudel
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.)
Kontron Communications Inc
Original Assignee
Kontron Embedded Modules GmbH
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 Kontron Embedded Modules GmbH filed Critical Kontron Embedded Modules GmbH
Publication of EP1507253A2 publication Critical patent/EP1507253A2/fr
Publication of EP1507253A3 publication Critical patent/EP1507253A3/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Withdrawn legal-status Critical Current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
    • G09G2370/042—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller for monitor identification
    • 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

Definitions

  • the present invention relates to a display adapter for enabling a automatic recognition and configuration of a display device by a graphics card, which are independent of the one used by the graphics card at the same time Graphics controller is.
  • the invention also relates to a display system that contains the display adapter according to the invention.
  • a video card be used, which has two separate video ports, where either a CRT screen or a liquid crystal screen can be connected can, as proposed in the publication US 2002/0149541 A1.
  • the object of the invention is therefore to provide a display adapter with which the Interface between the graphics card and a display device so improved can be that the type and configuration of the display device automatically detected can be and the display adapter simultaneously regardless of the respective used graphics controller is. This should also be as simple as possible and inexpensive way to happen.
  • the present invention is based on the idea that a display adapter between the graphics card and the display device is arranged, the flexibility of Arrangement increases and reduces complexity when in the display adapter only Address data are included, based on the configuration data required for the display device clues.
  • the actual configuration data, on the one hand by the respective Graphics controller depend on the other hand, and comparatively much space and Organizational effort are stored on the graphics card itself.
  • the graphics controller the actual configuration data, the graphics controller used to display the display device via the display adapter required To send display data, from a table, to a graphic card-internal Storage device is stored, reads out, can a very extensive flexibility in terms the graphics card as well as the connectable display device can be achieved.
  • the solution according to the invention can be upgraded and retrofitted ensure existing systems. The entire arrangement comes with a minimal Configuration effort.
  • a receiving / transmitting device capable of receiving the Display data from the graphics card and for forwarding the same to the display device is provided on the display adapter, according to an advantageous development a data adjustment device for adjusting the display data.
  • a data adjustment device for adjusting the display data.
  • the display adapter according to the invention for a digital display, preferably an LCD panel, so it can be widely compatible with existing ones market standard display devices are achieved because many different LCD panels can be operated with similar configuration data.
  • this solution offers the advantage of a particularly cost-effective and easy realization of the display adapter.
  • the receiving / transmitting device just by a receiver on the display adapter integrated, formed.
  • costs and effort for the actual display adapters are kept low and the transmitter is in the Graphics controller commonly used integrated transmitter.
  • the interface between the display adapter and the graphics card is an Inter IC bus interface, which is often referred to as an I 2 C bus interface, this offers the advantage that cost-effective standard components for data transmission between the individual components can be used.
  • the data adjustment device comprise a DA converter.
  • the data adaptation device comprises also at least one voltage regulator and at least one circuit breaker for providing the supply voltages required by the display device.
  • the inventive Display adapter as a printed circuit on a printed circuit board,
  • a printed circuit board for example, a printed circuit board (PCB) realize.
  • the required electronic Components, as well as the connectors required for the interfaces In this case, for example, by means of solder joints with the on the circuit carrier connected interconnects connected.
  • LVDS Low Voltage Differential Signaling
  • FIG. 1 shows schematically how the various elements of the display system according to the invention are interconnected.
  • a VGA controller 1 located on a graphics card 2 is connected to a display adapter 4 through a display cable 3. This is in turn connected via an interface with a display device, here an LCD panel 5.
  • a display device here an LCD panel 5.
  • On the display adapter 4 is a serial EEPROM 6 and a data adapter 7.
  • the VGA controller 1 on the graphics card 2 has access to a BIOS (Basic Input / Output System) 8, in which the configuration data are stored.
  • BIOS Basic Input / Output System
  • the display data of the VGA controller 1 for the LCD panel 5 are sent by the LVDS 9 first to the data adjustment device 7 on the display adapter 4, and then transferred to the LCD panel 5.
  • the serial EEPROM 6 on the display adapter 4 contains the address data for the configuration data for the respective LCD panel 5 in the BIOS 8.
  • the following steps are required for automatic detection and configuration a display device, such as an LCD panel, at different Implementations of a VGA Controller 1.
  • the address of the configuration data of the VGA controller LCD panels 5 are requested by the VGA controller 1. This address points to the BIOS 8, from which the VGA controller 1 reads in the required configuration data.
  • the VGA controller 1 is then configured accordingly.
  • the display data determined in this way are transmitted from the VGA controller to an interface and from the LCD panel receive.
  • the VGA controller 1 requests the address of the configuration data for the LCD panel 5 from an EEPROM 6 on the display adapter 4. This is done via an I 2 C bus 9.
  • the configuration data are read from the VGA controller 1 from a table in the BIOS 8. This table contains at least one panel adapter ID or flat panel ID.
  • the display data, which are transmitted from the VGA controller 1 to the interface, additionally contain information for brightness control, voltage regulation and for switching the supply voltage.
  • FIG. 2 shows a further block diagram of the display adapter 4 in a typical application environment.
  • the display adapter 4 is shown via a 40-pin flat flexible cable (FFC) with the interface 16 connected to the graphics card 2.
  • FFC 40-pin flat flexible cable
  • a VGA LCD controller 1 is integrated, which is connected to a BIOS 8.
  • the VGA controller 1 provides data which are to be sent to the display device to an integrated on the graphics card LVDS transmitter 17.
  • the graphics card 2 is accessed via the graphics card interface 16 in addition to the configuration data 18 display data 19 and up to 4 timing signals 20 output to the display adapter 4.
  • the display data 18 are from a Receive LVDS receiver 21 of the display adapter 4 and to a panel connection 22, which is part of the interface 13 to the display. breakers 11 switch the supply voltage on both the panel connector 22 as well a backlight port 23.
  • the DA converter 10 ensures the brightness control of the backlight.
  • STN panels super twisted nematic LCD technology
  • the real one Voltage regulation and the circuit of the supply voltages for the panel and The backlight must depend on the particular panel in the correct time sequence be switched.
  • the power switch 11 receives the relevant time signals 19 from the graphics card 2.
  • the I 2 C bus 9 is scanned for the configuration of the EEPROM 6. Based on a specific header, the EEPROM is detected.
  • FPID Full Panel Identification
  • PAID Packel Adapter Identification
  • FPID Full Panel Identification
  • PAID Packel Adapter Identification
  • the BIOS 8 first reads the FPID. If this is greater than 0, the table becomes checked for the correct entry. If present, this will then be in the BI OS 8 copied. If, on the other hand, either the FPID is not defined or no entry is made is found in the area, the PAID is used instead. This mechanism implements that special panel settings can also be edited if no Standard cable is used.
  • the end of the data packets in the EEPROM 6 of the display adapter 4 must be marked by a special identification.
  • the display adapter is a separate card on a printed Circuit board (PCB) constructed.
  • the provided on the PCB interfaces 12,13 to Graphics card 2 and the display device 5 are each as connections to a Ribbon cable executed.
  • the ribbon cable 3 With connected to the graphics card, with the panel connector 15, the ribbon cable 14 with the respective panel.
  • the LVDS receiver 21 and the EEPROM 6 are integrated components arranged on the PCB.
  • the backlight port 23 is here as a separate harness executed. Of course, it could also be an integration in the cable 14 may be provided.
  • the display adapter 4 encloses a corresponding housing, but for the sake of clarity in this figure not shown.
  • the display adapter 4 shown in Fig. 3 also executed differently be. However, it is advantageous in any case if he as a separate and subsequently switchable Module is built, which has two power strips between the computer and the display device can be switched. This will be a later easy retrofitting of existing display systems with an inventive Display adapter allows.

Landscapes

  • 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)
  • Controls And Circuits For Display Device (AREA)
EP04010486A 2003-08-11 2004-05-03 Adapteur d'affichage Withdrawn EP1507253A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20312372U DE20312372U1 (de) 2003-08-11 2003-08-11 Displayadapter
DE20312372U 2003-08-11

Publications (2)

Publication Number Publication Date
EP1507253A2 true EP1507253A2 (fr) 2005-02-16
EP1507253A3 EP1507253A3 (fr) 2007-12-12

Family

ID=28799396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04010486A Withdrawn EP1507253A3 (fr) 2003-08-11 2004-05-03 Adapteur d'affichage

Country Status (3)

Country Link
US (1) US20050046623A1 (fr)
EP (1) EP1507253A3 (fr)
DE (1) DE20312372U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014796A1 (de) 2010-02-03 2011-08-04 Emerging Display Technologies Corp. Bilschirmeinheit mit einem Tastschirm

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1200338C (zh) * 2002-09-19 2005-05-04 联想(北京)有限公司 个人电脑的无线人机交互设备
KR100599386B1 (ko) 2004-02-11 2006-07-12 엘지전자 주식회사 서로 상이한 인터페이스간 호환성을 가지는 ｔｆｔ-ｌｃｄ구동시스템
CN213303613U (zh) * 2020-11-02 2021-05-28 深圳市洲明科技股份有限公司 一种兼容flash存储电路和智能模组设计的显示屏

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262759A (en) * 1992-07-27 1993-11-16 Cordata Incorporated Removable computer display interface
US5276458A (en) * 1990-05-14 1994-01-04 International Business Machines Corporation Display system
EP0612053A1 (fr) * 1993-02-16 1994-08-24 International Business Machines Corporation Sous-système vidéo pour un système d'ordinateur
DE19630941A1 (de) * 1996-07-31 1997-10-09 Siemens Nixdorf Inf Syst TV-PC-Umsetzkabel und Rechnereinheit mit Funktionsschnittstelle für dieses Kabel
US6219451B1 (en) * 1998-12-28 2001-04-17 Dell Usa, L.P. Method and apparatus for counter based liquid crystal display panel identification for a computer
US20020036635A1 (en) * 2000-09-28 2002-03-28 Hajime Shimamoto Information processing apparatus and method for controlling power supply for a display thereof
EP1265210A1 (fr) * 2001-06-04 2002-12-11 Samsung Electronics Co., Ltd. Panneau d'affichage plat et méthode de commande

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742273A (en) * 1996-02-16 1998-04-21 International Business Machines Corp. Video monitor/adapter interconnect extension architecture
KR100209677B1 (ko) * 1996-02-27 1999-07-15 구자홍 티브이를 이용하여 브이씨알에 녹화예약용 데이터를 제공하는 방법, 이 방법 등에 적응된 티브이 및 브이씨알
US6560641B1 (en) * 2000-03-29 2003-05-06 Unisys Corporation System, method, and adapter card for remote console emulation including remote control of a peripheral device
US6618044B1 (en) * 2000-05-25 2003-09-09 Palm Inc. Selectively relocatable and universal interface module with circuitry for a display screen
JP2002117920A (ja) * 2000-10-06 2002-04-19 Fujitsu Hitachi Plasma Display Ltd プラズマディスプレイ装置
US20030117382A1 (en) * 2001-12-07 2003-06-26 Pawlowski Stephen S. Configurable panel controller and flexible display interface
US7424558B2 (en) * 2003-05-01 2008-09-09 Genesis Microchip Inc. Method of adaptively connecting a video source and a video display

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276458A (en) * 1990-05-14 1994-01-04 International Business Machines Corporation Display system
US5262759A (en) * 1992-07-27 1993-11-16 Cordata Incorporated Removable computer display interface
EP0612053A1 (fr) * 1993-02-16 1994-08-24 International Business Machines Corporation Sous-système vidéo pour un système d'ordinateur
DE19630941A1 (de) * 1996-07-31 1997-10-09 Siemens Nixdorf Inf Syst TV-PC-Umsetzkabel und Rechnereinheit mit Funktionsschnittstelle für dieses Kabel
US6219451B1 (en) * 1998-12-28 2001-04-17 Dell Usa, L.P. Method and apparatus for counter based liquid crystal display panel identification for a computer
US20020036635A1 (en) * 2000-09-28 2002-03-28 Hajime Shimamoto Information processing apparatus and method for controlling power supply for a display thereof
EP1265210A1 (fr) * 2001-06-04 2002-12-11 Samsung Electronics Co., Ltd. Panneau d'affichage plat et méthode de commande

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014796A1 (de) 2010-02-03 2011-08-04 Emerging Display Technologies Corp. Bilschirmeinheit mit einem Tastschirm
WO2011095310A1 (fr) 2010-02-03 2011-08-11 Rohde & Schwarz Gmbh & Co. Kg Unité d'écran à écran tactile
US9626033B2 (en) 2010-02-03 2017-04-18 Rohde & Schwarz Gmbh & Co. Kg Screen unit with a touch panel

Also Published As

Publication number Publication date
DE20312372U1 (de) 2003-10-02
EP1507253A3 (fr) 2007-12-12
US20050046623A1 (en) 2005-03-03

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