CN101079247A - Display apparatus data updating method and device - Google Patents
Display apparatus data updating method and device Download PDFInfo
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- CN101079247A CN101079247A CN 200710074734 CN200710074734A CN101079247A CN 101079247 A CN101079247 A CN 101079247A CN 200710074734 CN200710074734 CN 200710074734 CN 200710074734 A CN200710074734 A CN 200710074734A CN 101079247 A CN101079247 A CN 101079247A
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Abstract
The invention discloses a data updating method and device for display equipment, which comprises the following steps: testing the video interface of computer display card; transmitting the equipment data in the corresponding storage space through the signal line between video interface and display equipment according to the storage position of the updated display equipment data pattern, data communicating protocol, display equipment data; saving extra switching board; simplifying the updating operation for display equipment data.
Description
Technical field
The invention belongs to field of display devices, relate in particular to a kind of display device data-updating method and device.
Background technology
At present; store extending display identification data (ExtendedDisplay Identification Data in the display devices such as LCD; EDID), HDCP (High-bandwidth DigitalContent Protection, HDCP) and data messages such as multiple parameter, software such as the BIOS of display device.Along with every function of display device and personalized the requirement are further improved, these display device data need often be upgraded, prior art need be passed through computing machine (Personal Computer, PC) USB (universal serial bus) (Universal Serial Bus, USB) interface, RS232 interface or parallel port connect a card extender, be connected to display device by this card extender, realize the renewal of the above-mentioned data of display device, upgrade complicated operation, reduced production efficient, increased the production and the maintenance cost of product, inconvenient user makes amendment to the display device data simultaneously.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of display device data-updating method, is intended to solve and passes through card extender update displayed device data in the prior art, upgrades the problem of complicated operation.
The embodiment of the invention is achieved in that a kind of display device data-updating method, and described method comprises the steps:
The video interface of detection computations machine video card;
The memory location of the display device data type of Geng Xining, data communication protocol, display device data is sent to the display device data in the respective stored space of display device by the signal wire between described video interface and the display device as required.
Another purpose of the embodiment of the invention is to provide a kind of display device data update apparatus, and described device comprises:
The kernel driver module is used to enter the DDC bus, directly controls video card or communicates by letter the I of control video card video interface output with the video card driving
2The C bus is for the upper strata provides interface function;
The interface function that provides according to described kernel driver module is provided the dynamic link libraries function module, and the interface function of client layer is provided; And
Upgrade operational module, the interface function that provides according to described dynamic link libraries function module is provided, and the memory location of the display device data type of Geng Xining, data communication protocol, display device data is sent to the display device data in the respective stored space of display device by the signal wire between video card video interface and the display device as required.
In embodiments of the present invention, by the video interface of PC video card, utilize the signal wire between video interface and the display device, directly the display device data are sent in the respective stored space of the display device that needs renewal, do not need to add card extender in addition, simplified the renewal operation of display device data.
Description of drawings
Fig. 1 is the realization schematic diagram of the display device Data Update that provides of the embodiment of the invention;
Fig. 2 is the realization schematic diagram of the data messages such as EDID, HDCP, Gamma, start logo or OSD icon stored among the DDCCI protocol update FLASH of passing through of providing of the embodiment of the invention;
Fig. 3 be the embodiment of the invention provide pass through I
2The C standard agreement upgrades the realization schematic diagram of the data messages such as BIOS of EDID, HDCP, Gamma, start logo, OSD icon or the display device stored among the FLASH;
Fig. 4 is the realization schematic diagram of the data messages such as EDID, HDCP, Gamma, start logo or OSD icon stored among the DDCCI protocol update EEPROM of passing through of providing of the embodiment of the invention;
Fig. 5 be the embodiment of the invention provide pass through I
2The C standard agreement upgrades the realization schematic diagram of the data messages of storing among the EEPROM such as EDID, HDCP, Gamma, start logo or OSD icon;
Fig. 6 be the embodiment of the invention provide pass through I
2The C standard agreement upgrades the realization schematic diagram of the EDID that stores among the RAM;
Fig. 7 is the realization schematic diagram that two EDID are upgraded that the embodiment of the invention provides;
Fig. 8 is the realization schematic diagram that three EDID are upgraded that first embodiment of the invention provides;
Fig. 9 is the realization schematic diagram that three EDID are upgraded that second embodiment of the invention provides;
Figure 10 is the structural drawing of the display device data update apparatus that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In embodiments of the present invention, video interface by the PC video card, utilize the signal wire between video interface and the display device, according to corresponding data communication protocol the display device data are sent in the respective stored space of the display device that needs upgrade, have simplified the renewal operation of display device data.
In the embodiment of the invention, the display device data that can upgrade comprise the BIOS of EDID, HDCP, display device, also comprise gal sign indicating number (Gamma) table, start sign (logo), screen display (On ScreenDisplay, OSD) data such as icon.Wherein, EDID, HDCP, Gamma table, start logo, OSD icon can be kept at EEPROM (Electrically Erasable Programmable Read Only Memo) (the ElectricallyErasable Programmable Read-Only Memory of display device, EEPROM) or in the flash memory (FLASH), the BIOS of display device is kept among the FLASH of display device, and EDID can also be kept in the random access memory (RAM) of display device.
EDID generally comprises Video Graphics Array (Video Graphic Array; VGA) EDID, digital visual interface (Digital Visual Interface; DVI) EDID and high-definition digital multimedia interface (High-Definition Multimedia Interface; HDMI) EDID is three types, so display device has a plurality of EDID usually.
In the embodiment of the invention, the video interface of PC video card can be Video Graphics Array (Video GraphicsArray, VGA) interface, perhaps mutual induction formula digital video (Digital Video Interactive, DVI) interface etc.VGA interface output simulating signal is the interface type that is most widely used on the video card.What the DVI interface transmitted is digital signal, can support the HDCP agreement.
Data communication protocol between video card video interface and the display device can be DDC command interface (Display Data Channel Command Interface, DDCCI) agreement or internal integrated circuit (Inter-Integrated Circuit, I
2C) bus standard agreement etc.The DDCCI agreement is based on I between PC and the display device
2A bidirectional communication protocol that the DDC passage is operated of C standard, by the DDCCI agreement, the terminal user can be directly to display operation.I
2The C bus is the universal serial bus that is made of signal wire (SDA) and clock line (SCL), be used for connecting microprocessor (the Micro Control Unit of display device, MCU) and peripherals, for example FLASH, EEPROM or RAM make that can carry out bi-directional data between MCU and the peripherals thereof transmits.
Fig. 1 shows the realization principle of the display device Data Update that the embodiment of the invention provides, video interfaces such as VGA by the PC video card or DVI, utilize the signal wire between video interface and the display device, according to corresponding data communication protocol, for example DDCCI agreement or I
2The C standard agreement is sent to the respective stored space of the display device that needs renewal with the display device data such as BIOS of EDID, HDCP, Gamma table, start logo, OSD icon, display device, for example in FLASH, EEPROM or the RAM.
In embodiments of the present invention, can take different mode update displayed device datas according to type, deposit position, the PC video card of display device data with the Data Transport Protocol between the display device.
Realization principle when Fig. 2 shows by data messages such as EDID, the HDCP that stores among the DDCCI protocol update FLASH, Gamma, start logo or OSD icons.
After PC detected the VGA interface or DVI interface of video card, VGA interface or DVI interface by video card were sent to display device according to the DDCCI agreement with the respective display apparatus data.The MCU of display device is written in the FLASH of storage respective display apparatus data after receiving the display device data that PC transmits, thereby finishes the renewal of respective display apparatus data.
Fig. 3 shows and passes through I
2Realization principle when the C standard agreement upgrades the data messages such as BIOS of EDID, HDCP, Gamma, start logo, OSD icon or the display device stored among the FLASH.
After PC detected the VGA interface or DVI interface of video card, VGA interface or DVI interface by video card were sent to I with the display device data
2On the C bus, the MCU of display device triggers interruption, and FLASH is carried out corresponding initialization process, I
2The C bus directly writes to the display device data in the FLASH of display device, thereby finishes the renewal of related display device data.
Realization principle when Fig. 4 shows by data messages such as EDID, the HDCP that stores among the DDCCI protocol update EEPROM, Gamma, start logo or OSD icons.
PC detects the VGA interface or the DVI interface of video card, and VGA interface or DVI interface by video card are sent to display device according to the DDCCI agreement with the corresponding display equipment data.The MCU of display device is written among the EEPROM after receiving the display device data of PC transmission, thereby finishes the renewal of respective display apparatus data.
Fig. 5 shows and passes through I
2Realization principle when the C standard agreement upgrades the data messages of storing among the EEPROM such as EDID, HDCP, Gamma, start logo or OSD icon.
PC detects the VGA interface or the DVI interface of video card, by the VGA interface or the DVI interface of video card, according to I
2The C standard agreement directly is sent to the corresponding display equipment data among the EEPROM of display device, thereby finishes the renewal of respective display apparatus data.
Fig. 6 shows and passes through I
2Realization principle when the C standard agreement upgrades the EDID that stores among the RAM.
PC detects the VGA interface or the DVI interface of video card, by the VGA interface or the DVI interface of video card, according to I
2The C standard agreement is sent to the corresponding display equipment data among the RAM of display device, finishes the renewal of respective display apparatus data.
At above-mentioned Fig. 2 in the renewal of Fig. 6 to the display device data; show the situation that display device only has an EDID; because the EDID data message comprises three types of VGA EDID, DVI EDID data and HDMIEDID; so display device has a plurality of EDID usually; wherein VGA EDID generally is stored among FLASH, EEPROM or the RAM; DVI EDID generally is stored among EEPROM or the RAM, and HDMI EDID generally is stored among the EEPROM.For fear of when producing or safeguarding, taking a plurality of stations to upgrade corresponding EDID respectively, improve the update efficiency of EDID, can realize 2 or 3 EDID of a update displayed equipment according to the various combination of the mode of an EDID of above-mentioned renewal in the embodiment of the invention.
As shown in Figure 7, PC can be by the VGA interface and the DVI interface of video card, according to I
2The C standard agreement upgrades VGA EDID and DVI EDID respectively, can be once the VGA EDID and the DVI EDID of display device be upgraded, and VGA EDID and DVI EDID are write in its corresponding storage space.Situation when VGA EDID is stored in FLASH similarly repeats no more.
When the VGA of update displayed equipment EDID, HDMI EDID and three EDID of DVI EDID, as shown in Figure 8, PC detects the VGA interface and the DVI interface of video card, DVI interface by video card, according to DDCCI protocol update HDMI EDID, HDMI EDID is write corresponding EEPROM, and upgrade VGA EDID by the VGA interface of video card.Then, by the VGA interface of video card, according to the DDCCI agreement, send DVI EDID to MCU, MCU writes corresponding EEPROM or RAM with DVI EDID.
Because in the display device side, the shared interface of DVI and HDMI as another embodiment of the present invention, also can be realized writing of DVI EDID and HDMI EDID respectively by the conversion that writes of corresponding memory space, as shown in Figure 9.PC detects the VGA interface and the DVI interface of video card; VGA interface by video card; according to DDCCI protocol update VGA EDID; and by the MCU of VGA interface transmission order to display device; MCU is by universaling I/O port (General Purpose I/O; GPIO) corresponding EEPROM or RAM write-protect is closed, specifically can realize by phase inverter.Then, the DVI interface of PC by video card upgrades corresponding write-protected EEPROM or the RAM of closing, thereby realizes the renewal of DVI EDID, HDMI EDID respectively.Certainly, the renewal of VGA EDID also can be upgraded at DVI and HDMI and carry out after finishing.
Figure 10 shows the structure of the display device data update apparatus that the embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with the embodiment of the invention.
The video interface of PC video card links to each other with the corresponding interface of display device by signal wire, and display device can be a LCD, receives the digital signal or the simulating signal of PC transmission.The video interface of PC video card can be VGA interface or DVI interface etc.Data communication protocol between PC video card and the display device can be DDCCI agreement, perhaps I
2C standard agreement etc.Has MCU in the display device, and a memory device that is connected with MCU, for example EEPROM, FLASH or RAM etc., the display device data such as BIOS that are used to store EDID, HDCP, Gamma, start logo, OSD icon or display device.
Behind VGA interface that detects video card or DVI interface, display device data updating unit 100 with the signal wire that the video interface of corresponding display equipment data by the PC video card is connected with display device through PC, is written to corresponding memory location with the display device data according to the type of video data, memory location, data communication protocol etc.
Dynamic link libraries function module 101 provides the interface function of client layer according to the interface function that kernel driver module 101 provides.
Upgrade the interface function that operational module 103 provides according to dynamic link libraries function module 102, the memory location of the display device data type of Geng Xining, data communication protocol, display device data is sent to the display device data in the respective stored space of display device by the signal wire between video card video interface and the display device as required.
In embodiments of the present invention, video interface by the PC video card, utilize the signal wire between video interface and the display device, directly the display device data are sent in the respective stored space of the display device that needs renewal, do not need to add in addition card extender, simplified the renewal operation of display device data, improved production efficient, the production and the maintenance cost of product have been reduced, make things convenient for the user that the display device data are made amendment simultaneously, and can realize EDID, HDCP, the Gamma table, start logo, the OSD icon, the renewal of multiple display device data such as the BIOS of display device.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of display device data-updating method is characterized in that, described method comprises the steps:
The video interface of detection computations machine video card;
The memory location of the display device data type of Geng Xining, data communication protocol, display device data is sent to the display device data in the respective stored space of display device by the signal wire between described video interface and the display device as required.
2, the method for claim 1; it is characterized in that described display device data are the BIOS of extending display identification data EDID, HDCP data HDCP, Gamma table, start sign logo, screen display OSD icon or display device.
3, the method for claim 1 is characterized in that, described data communication protocol is DDCCI agreement or I
2The C standard agreement.
4, the method for claim 1 is characterized in that, described video interface is the VGA interface, perhaps the DVI interface.
5, the method for claim 1 is characterized in that, described storage space is FLASH, EEPROM or RAM.
6, a kind of display device data update apparatus is characterized in that, described device comprises:
The kernel driver module is used to enter the DDC bus, directly controls video card or communicates by letter the I of control video card video interface output with the video card driving
2The C bus is for the upper strata provides interface function;
The interface function that provides according to described kernel driver module is provided the dynamic link libraries function module, and the interface function of client layer is provided; And
Upgrade operational module, the interface function that provides according to described dynamic link libraries function module is provided, and the memory location of the display device data type of Geng Xining, data communication protocol, display device data is sent to the display device data in the respective stored space of display device by the signal wire between video card video interface and the display device as required.
7, device as claimed in claim 6; it is characterized in that described display device data are the BIOS of extending display identification data EDID, HDCP data HDCP, Gamma table, start sign logo, screen display OSD icon or display device.
8, device as claimed in claim 6 is characterized in that, described data communication protocol is DDCCI agreement or I
2The C standard agreement.
9, device as claimed in claim 6 is characterized in that, described video interface is the VGA interface, perhaps the DVI interface.
10, device as claimed in claim 6 is characterized in that, described storage space is FLASH, EEPROM or RAM.
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| CN 200710074734 CN101079247A (en) | 2007-06-05 | 2007-06-05 | Display apparatus data updating method and device |
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| CN 200710074734 CN101079247A (en) | 2007-06-05 | 2007-06-05 | Display apparatus data updating method and device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937709A (en) * | 2010-08-19 | 2011-01-05 | 冠捷显示科技(武汉)有限公司 | Display equipment software updating method |
| CN102073521A (en) * | 2011-01-06 | 2011-05-25 | 深圳市朗驰欣创科技有限公司 | Software updating system of plug-in card type machine and software updating method |
| CN102237071A (en) * | 2010-05-07 | 2011-11-09 | 英属维京群岛商硕颖科技有限公司 | Simulation device for display |
| CN101719353B (en) * | 2009-11-27 | 2012-09-05 | 福建捷联电子有限公司 | Extended display identification data burning method for Display Port liquid crystal display |
| CN103345915A (en) * | 2013-05-15 | 2013-10-09 | 山东超越数控电子有限公司 | Method capable of automatically adapting to EDID digital-to-analogue display conversion |
| CN103778963A (en) * | 2012-10-25 | 2014-05-07 | 纬创资通股份有限公司 | Expanded display and identification data recording method and display device |
| CN109473062A (en) * | 2017-09-08 | 2019-03-15 | 乐金显示有限公司 | Organic light emitting diode display and its operating method |
| CN110806988A (en) * | 2019-10-25 | 2020-02-18 | 北京淳中科技股份有限公司 | Display equipment type identification method and device |
| CN110990068A (en) * | 2019-11-29 | 2020-04-10 | 龙芯中科(西安)科技有限公司 | Display method, display device, electronic equipment and storage medium |
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2007
- 2007-06-05 CN CN 200710074734 patent/CN101079247A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719353B (en) * | 2009-11-27 | 2012-09-05 | 福建捷联电子有限公司 | Extended display identification data burning method for Display Port liquid crystal display |
| CN102237071A (en) * | 2010-05-07 | 2011-11-09 | 英属维京群岛商硕颖科技有限公司 | Simulation device for display |
| CN101937709A (en) * | 2010-08-19 | 2011-01-05 | 冠捷显示科技(武汉)有限公司 | Display equipment software updating method |
| CN102073521B (en) * | 2011-01-06 | 2014-01-22 | 深圳市朗驰欣创科技有限公司 | Software updating system of plug-in card type machine and software updating method |
| CN102073521A (en) * | 2011-01-06 | 2011-05-25 | 深圳市朗驰欣创科技有限公司 | Software updating system of plug-in card type machine and software updating method |
| CN103778963A (en) * | 2012-10-25 | 2014-05-07 | 纬创资通股份有限公司 | Expanded display and identification data recording method and display device |
| CN103345915A (en) * | 2013-05-15 | 2013-10-09 | 山东超越数控电子有限公司 | Method capable of automatically adapting to EDID digital-to-analogue display conversion |
| CN103345915B (en) * | 2013-05-15 | 2016-04-13 | 山东超越数控电子有限公司 | A kind of method of automatic adaptation EDID digital-to-analogue display conversion |
| CN109473062A (en) * | 2017-09-08 | 2019-03-15 | 乐金显示有限公司 | Organic light emitting diode display and its operating method |
| CN109473062B (en) * | 2017-09-08 | 2021-08-17 | 乐金显示有限公司 | Organic light emitting diode display and method of operating the same |
| CN110806988A (en) * | 2019-10-25 | 2020-02-18 | 北京淳中科技股份有限公司 | Display equipment type identification method and device |
| CN110990068A (en) * | 2019-11-29 | 2020-04-10 | 龙芯中科(西安)科技有限公司 | Display method, display device, electronic equipment and storage medium |
| CN110990068B (en) * | 2019-11-29 | 2023-05-12 | 龙芯中科(西安)科技有限公司 | Display method, display device, electronic equipment and storage medium |
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