CN109461395A - A kind of display facility information hand-held analyzer and application method - Google Patents
A kind of display facility information hand-held analyzer and application method Download PDFInfo
- Publication number
- CN109461395A CN109461395A CN201811316449.3A CN201811316449A CN109461395A CN 109461395 A CN109461395 A CN 109461395A CN 201811316449 A CN201811316449 A CN 201811316449A CN 109461395 A CN109461395 A CN 109461395A
- Authority
- CN
- China
- Prior art keywords
- interface
- display
- facility information
- analyzer
- information
- 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.)
- Pending
Links
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
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of display facility information hand-held analyzer and application methods, including control unit and power supply unit two parts, the information of display equipment is quickly read at assist operators scene, is connected without additional computer, and the speed that operator checks display failure is greatly accelerated.Analyzer of the present invention is that box-shaped device has the function of alternating current and battery dual power supply simultaneously, easy to carry to use under circumstances with hand-held.
Description
Technical field
The present invention relates to a kind of display facility information hand-held analyzer and application methods, belong to display equipment management neck
Domain.
Background technique
Currently, by liquid crystal display, projector etc. show the USB interface of equipment, DVI interface, HDMI interface,
DisplayPort interface etc. can read the data for following the EDID standard of VESA formulation, to know about display equipment institute
Timing, format, the parameters such as standard time sequence and production time, manufacturer, the sequence of the color space of support, preferred vision signal
The information such as row number.By analyzing EDID data, unit check personnel, the integrated personnel of audio-visual system can be known to be set about display
Standby manufacture information, performance parameter, convenient for examining equipment, investigation failure.Common method is installed in Window operating system
EDID Viewer software will show that equipment is connect with computer display card by video interface, and video card reads EDID from display equipment
The registration table of system is stored in after data, software reads data and analytical equipment information from registration table.This method is dependent on behaviour
The display equipment EDID data that the display equipment making system, and being connected is limited to video card interface, can analyze are only limited to preceding 128
Byte data cannot analyze comprehensively the data of 256 bytes in HDMI interface or DisplayPort interface.Therefore not
Facilitate unit check personnel and audio-visual system to integrate personnel to use at the scene and carrying.
Summary of the invention
Goal of the invention: the present invention proposes a kind of display facility information hand-held analyzer and application method, examines convenient for equipment
It tests personnel and audio-visual system integrates personnel and obtains display facility information at the scene.
Technical solution: the technical solution adopted by the present invention is a kind of display facility information hand-held analyzer, including control
Unit and power supply unit two parts.
Described control unit includes several display interface devices, and display interface device is connected to interface selection circuit, interface
Selection circuit is controlled by processor, and processor and key and LCD display carry out human-computer interaction.
Several described display interface devices include USB interface, DVI interface, HDMI interface and DisplayPort interface.
The DisplayPort interface is connected to interface selection circuit by conversion circuit.
The processor turns serial port circuit by USB and is connected to USB interface, with upgrading or the software of more new processor.
The processor has been also connected with LED light, be used to indicate processor power-up, work it is whether normal.
The LCD display is connected with LCD brightness regulation knob, convenient for adjusting the backlight illumination of LCD display.
A kind of display facility information hand-held analyzer operating method, comprising the following steps:
1) analyzer is connect with display equipment by video cables, is initialized into main program after analyzer power-up；
2) it shows that video interface selects menu on LCD display, is connect in the case where video interface selects menu by user's selection
Mouthful；
3) it executes and reads data step, it is as failed in read, interface selection menu is returned after showing error information；As read
Success selects menu into user, and it includes " examining after-sales staff " and " integrated maintenance personal " that user, which selects personnel's type,；
4) selection " examining after-sales staff " is analyzed manufacturer, the ID product code, ID sequence of display equipment by analyzer
Number, manufacturing time, equipment Serial Number and device name information, examine after-sales staff to record information needed as needed；
5) " integrated maintenance personal " is selected, software analyzes color information and timing information.
The color information includes the video input definition for showing equipment, maximum horizontal picture size, maximum perpendicular image
Size, Gamma value, the color space of support, characteristic support etc.；Timing information includes supporting timing sequence, standard time sequence mark really
When knowledge, detailed temporal specification, minimum refresh rate, maximum refresh rate, minimum line frequency, maximum line frequency, maximum pixel clock and secondary
Sequence criteria information.
The detailed temporal specification include pixel clock, horizontal valid pixel, horizontal blanking pixel, vertical valid pixel,
Vertical blanking pixel, horizontal synchronization compensation, horizontal sync pulse width, vertical synchronization compensation, vertical synchronization pulsewidth, horizontal image ruler
Whether very little, vertical image size horizontal frame, vertical edge frame, is to progressively scan, whether support stereoscopic display and signal polarity.
The utility model has the advantages that the information of display equipment is quickly read at assist operators scene of the present invention, without additional calculating
Machine connection greatly accelerates the speed that operator checks display failure.Analyzer of the present invention is that box-shaped device has city simultaneously
Electricity and battery dual power supply function, it is easy to carry to be used under circumstances with hand-held.
Detailed description of the invention
Fig. 1 is that the invention shows facility information hand-held analyzer structural schematic diagrams；
Fig. 2 is the distribution schematic diagram of each key of analyzer of the present invention；
Fig. 3 is the bottom panel schematic diagram of analyzer of the present invention；
Fig. 4 is the front panel schematic diagram of analyzer of the present invention；
Fig. 5 is the rear panel schematic diagram of analyzer of the present invention；
Fig. 6 is the side side view of analyzer of the present invention；
Fig. 7 is the other side side view of analyzer of the present invention；
Fig. 8 is analyzer application method flow chart of the present invention.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
It the present invention rather than limits the scope of the invention, after the present invention has been read, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application range as defined in the appended claims.
As shown in Figure 1, the present embodiment shows facility information hand-held analyzer, including control unit (1) and power supply unit
(2) two parts.
Wherein control unit (1) includes series of displays device interface, such as USB interface (1-9-1), DVI interface (1-9-
2), HDMI interface (1-9-3) and DisplayPort interface (1-9-4), these interfaces are used to connect with display equipment to be detected
It connects.In addition to DisplayPort interface (1-9-4), other are connected directly to interface selection circuit (1-8) above-mentioned interface, and
DisplayPort interface (1-9-4) is connected to interface selection circuit (1-8), conversion circuit (1- by conversion circuit (1-10)
10) conversion for realizing DDC signal of communication and AUX channel signal, selects STDP2600 chip.Interface selection circuit (1-8) by
Device (1-1) control is managed, processor (1-1) is STM32F103 micro-control unit.External display device may only meeting when operation every time
Connect one of them or several interfaces, it is therefore desirable to which interface selection circuit (1-8) selects the interface having connected.
Operator carries out human-computer interaction by key (1-7) and LCD display (1-5) and processor, realizes that input is defeated
Out.LCD display (1-5) shows main menu and various information, and Chinese word library and backlight is supported to adjust.Processor (1-1) connects
The signal that key (1-7) is issued is received, executes corresponding operation, and ensure the accurate of button operation by the way of software for jitters elimination.
According to the signal of key (1-7), processor (1-1) control interface selection circuit (1-8) chooses USB interface (1-9-1), DVI to connect
It one in mouthful (1-9-2), HDMI interface (1-9-3), DisplayPort interface (1-9-4) four, reads in display equipment
EDID data, and by data analysis shows that on LCD display (1-5).When result is analyzed in display, processor (1-1) is received
Control LCD display (1-5) page turning of key (1-7) signal is shown.This analyzer additionally provides LCD brightness regulation knob simultaneously
(1-6) adjusts the backlight illumination of LCD display (1-5) convenient for operator.Processor (1-1) turns serial port circuit (1- by USB
3) it connect, is upgraded convenient for subsequent operation personnel using USB interface (1-2) or more new processor (1-1) with USB interface (1-2)
Software.The USB turns serial port circuit (1-3) and selects CH340 chip.LED light (1-4) connects processor (1-1), for referring to
Show whether processor (1-1) power-up, work are normal.
The power supply unit (2) has two kinds of power supply modes of alternating current and battery, stirs power supply selection switch by operator
(2-7) Lai Qidong closes power supply selection circuit (2-6).Alternating current is by power adaptor interface (2-1) access power switch electricity
Road (2-4).220V electric main is switched to 5V direct current by power adaptor interface (2-1).In addition power supply unit (2) further comprises
Battery compartment (2-2), battery compartment (2-2) is interior to be mounted with that 9V battery, battery output voltage also access power switch circuit (2-
4).Operator is that battery or alternating current are input to confession by power switch (2-3) control power switch circuit (2-4) selection
Electric selection circuit (2-6).Since battery voltage is 9V, DC-DC circuit is also provided on the supply path of battery
The 9V direct current that battery exports is converted into 5V direct current by (2-5).Power supply selection circuit (2-6) supplies alternating current or battery
One of electricity is exported to control unit (1).
A kind of display facility information hand-held analyzer operating method, as shown in Figure 8, comprising the following steps:
1) analyzer is connect (display equipment is without power-up) with display equipment by video cables, after analyzer power-up just
Beginningization enters main program.
2) it shows that video interface selects menu on LCD display (1-5), is selected in the case where video interface selects menu by user
Select interface.User presses key (1-7-2) selection to left button (1-7-1) or to the right from USB interface (1-9-1), DVI interface (1-
9-2), EDID is read in HDMI interface (1-9-3) or DisplayPort interface (1-9-4), after choosing some interface, by determination
Key (1-7-5) then continues to select to wait under menu interface in video interface, analyzer pair such as not by key (1-7-5) is determined
All actuation of keys ensure the accurate of push button signalling by the way of software for jitters elimination.
3) it executes and reads data step, it is as failed in read, interface selection menu is returned after showing error information；As read
Success selects menu into user, and user includes " examining after-sales staff " and " integrated maintenance personal ".By upward under this interface
Key (1-7-3) and down button (1-7-4) realize that menu selection, the cursor in LCD screen move.Choose some user
Afterwards, determining key (1-7-5) entrance is pressed, " returning to interface selection " item is such as chosen, is back to after pressing determining key (1-7-5)
Interface selects menu.
4) selection " examining after-sales staff " is analyzed manufacturer, the ID product code, ID sequence of display equipment by analyzer software
The information such as row number, manufacturing time, equipment Serial Number, device name.It examines after-sales staff recording equipment sequence number as needed, set
The information such as standby sequence number, manufacturing time.The method for using Pagination Display at LCD display (1-5) when display analysis result, every page
It shows four row contents, realizes page turning by upward key (1-7-3) and down button (1-7-4): being shown by upward key (1-7-3)
Prevpage；Lower one page is shown by down button (1-7-4).During Pagination Display information, determining key (1-7-5) is pressed
It then returns to user and selects menu, such as press to left button (1-7-1) or key (1-7-2) to the right, be then not responding to button operation；When
When Pagination Display to last page, the button operation of user is waited, user is returned if pressing determining key (1-7-5) and selects dish
It is single, prevpage is shown if pressing upward key (1-7-3), such as press down button (1-7-4), to left button (1-7-1) or
Key (1-7-2) to the right, then be not responding to button operation.
5) " integrated maintenance personal " being selected, the information that software analyzes includes two major classes, first is that color information, second is that timing
Information: color information include show the video input definition of equipment, maximum horizontal picture size, maximum perpendicular picture size,
Gamma value, the color space of support, characteristic support etc.；Timing information includes supporting that timing sequence, standard time sequence identify, in detail really
Thin temporal specification (including pixel clock, horizontal valid pixel, horizontal blanking pixel, vertical valid pixel, vertical blanking pixel,
Horizontal synchronization compensation, horizontal sync pulse width, vertical synchronization compensation, vertical synchronization pulsewidth, horizontal image size, vertical image ruler
Very little, horizontal frame, vertical edge frame, whether be progressive scan, whether support stereoscopic display, signal polarity etc.), minimum refresh rate,
The information such as maximum refresh rate, minimum line frequency, maximum line frequency, maximum pixel clock, secondary timing criterion.The system integration and maintenance people
Member according to display picture color problem or float problem obtain relevant information, thus solve the problems, such as failure and.Display point
The method for using Pagination Display at LCD display (1-5) when analysing result, every page of four row contents of display, by upward key (1-7-3)
Page turning is realized with down button (1-7-4): showing prevpage by upward key (1-7-3)；By under down button (1-7-4) display
One page.During Pagination Display information, presses determining key (1-7-5) and then return to user's selection menu, such as press to the left
Key (1-7-1) or to the right key (1-7-2), then be not responding to button operation；When Pagination Display to last page, user is waited
Button operation, returned if pressing determining key (1-7-5) user select menu, shown if pressing upward key (1-7-3)
Show prevpage, such as presses down button (1-7-4), to left button (1-7-1) or to the right key (1-7-2), be then not responding to key
Operation.
Claims (10)
1. a kind of display facility information hand-held analyzer, which is characterized in that including control unit (1) and power supply unit (2) two
Part.
2. display facility information hand-held analyzer according to claim 1, which is characterized in that described control unit (1)
Including several display interface devices, display interface device is connected to interface selection circuit (1-8), interface selection circuit (1-8) quilt
Processor (1-1) control, processor (1-1) and key (1-7) and LCD display (1-5) carry out human-computer interaction.
3. display facility information hand-held analyzer according to claim 2, which is characterized in that several described displays
Interface includes USB interface (1-9-1), DVI interface (1-9-2), HDMI interface (1-9-3) and DisplayPort interface (1-9-
4)。
4. display facility information hand-held analyzer according to claim 3, which is characterized in that the DisplayPort
Interface (1-9-4) is connected to interface selection circuit (1-8) by conversion circuit (1-10).
5. display facility information hand-held analyzer according to claim 2, which is characterized in that the processor (1-1)
Turn serial port circuit (1-3) by USB and be connected to USB interface (1-2), with upgrading or the software of more new processor (1-1).
6. display facility information hand-held analyzer according to claim 2, which is characterized in that the processor (1-1)
Be also connected with LED light (1-4), be used to indicate processor (1-1) power-up, work it is whether normal.
7. display facility information hand-held analyzer according to claim 2, which is characterized in that the LCD display (1-
5) it is connected with LCD brightness regulation knob (1-6), convenient for adjusting the backlight illumination of LCD display (1-5).
8. a kind of display facility information hand-held analyzer operating method, which comprises the following steps:
1) analyzer is connect with display equipment by video cables, is initialized into main program after analyzer power-up；
2) it shows that video interface selects menu on LCD display, interface is selected by user in the case where video interface selects menu；
3) it executes and reads data step, it is as failed in read, interface selection menu is returned after showing error information；Such as read at
Function selects menu into user, and it includes " examining after-sales staff " and " integrated maintenance personal " that user, which selects personnel's type,；
4) selection " examining after-sales staff " is analyzed manufacturer, the ID product code, ID sequence number, system of display equipment by analyzer
Time, equipment Serial Number and device name information are made, after-sales staff is examined to record information needed as needed；
5) " integrated maintenance personal " is selected, software analyzes color information and timing information.
9. display facility information hand-held analyzer operating method according to claim 8, which is characterized in that the color
Information includes the video input definition for showing equipment, maximum horizontal picture size, maximum perpendicular picture size, Gamma value, supports
Color space, characteristic support etc.；Timing information includes supporting timing sequence, standard time sequence mark, detailed temporal specification, most really
Small refresh rate, maximum refresh rate, minimum line frequency, maximum line frequency, maximum pixel clock and secondary timing criteria information.
10. display facility information hand-held analyzer operating method according to claim 9, which is characterized in that described detailed
Thin temporal specification includes pixel clock, horizontal valid pixel, horizontal blanking pixel, vertical valid pixel, vertical blanking pixel, water
Flat synchroballistic, horizontal sync pulse width, vertical synchronization compensation, vertical synchronization pulsewidth, horizontal image size, vertical image size,
Whether horizontal frame vertical edge frame, is to progressively scan, whether support stereoscopic display and signal polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316449.3A CN109461395A (en) | 2018-11-07 | 2018-11-07 | A kind of display facility information hand-held analyzer and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316449.3A CN109461395A (en) | 2018-11-07 | 2018-11-07 | A kind of display facility information hand-held analyzer and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109461395A true CN109461395A (en) | 2019-03-12 |
Family
ID=65609572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811316449.3A Pending CN109461395A (en) | 2018-11-07 | 2018-11-07 | A kind of display facility information hand-held analyzer and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109461395A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599894A (en) * | 2019-09-18 | 2019-12-20 | 重庆京东方智慧电子系统有限公司 | Electronic tag and driving method thereof |
| US11397447B2 (en) | 2019-09-18 | 2022-07-26 | Chongqing Boe Smart Electronics System Co., Ltd. | Electronic label and method for driving the same |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895785A (en) * | 2010-07-01 | 2010-11-24 | 广东欧珀电子工业有限公司 | Portable HDMI CEC automatic testing device and testing method thereof |
| CN201708891U (en) * | 2010-07-01 | 2011-01-12 | 广东欧珀电子工业有限公司 | Portable High-Definition Multimedia Interface Consumer Electronics Control(HDMI CEC) automatic tester |
| CN101943844A (en) * | 2009-07-08 | 2011-01-12 | 深圳富泰宏精密工业有限公司 | Multifunctional projector |
| CN201993553U (en) * | 2011-03-11 | 2011-09-28 | 苏州市欧康诺电子科技有限公司 | Backlight source power supply board for testing |
| US8207751B2 (en) * | 2009-04-16 | 2012-06-26 | Kabushiki Kaisha Toshiba | Receiver which receives video information |
| CN202614773U (en) * | 2012-05-10 | 2012-12-19 | 秦皇岛市康泰医学系统有限公司 | Portable urine analyzer |
| CN203616547U (en) * | 2013-12-19 | 2014-05-28 | Tcl显示科技（惠州）有限公司 | Test system of liquid crystal display module |
| CN104598325A (en) * | 2015-02-10 | 2015-05-06 | 武汉精测电子技术股份有限公司 | Method for burning and verifying EDID (Extended Display Identification Data) of display module |
| CN204480644U (en) * | 2015-01-04 | 2015-07-15 | 武汉精测电子技术股份有限公司 | Display module EDID reading and writing data proving installation |
| CN206832710U (en) * | 2017-06-12 | 2018-01-02 | 苏州三值精密仪器有限公司 | A kind of Portable X-ray soil heavy metal analyser |
| CN107707365A (en) * | 2017-11-08 | 2018-02-16 | 中国电子科技集团公司第二十八研究所 | A kind of radio station remote control switch controller and control method |
| CN107799042A (en) * | 2017-11-02 | 2018-03-13 | 深圳同兴达科技股份有限公司 | A kind of liquid crystal display die set test board |
-
2018
- 2018-11-07 CN CN201811316449.3A patent/CN109461395A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8207751B2 (en) * | 2009-04-16 | 2012-06-26 | Kabushiki Kaisha Toshiba | Receiver which receives video information |
| CN101943844A (en) * | 2009-07-08 | 2011-01-12 | 深圳富泰宏精密工业有限公司 | Multifunctional projector |
| CN101895785A (en) * | 2010-07-01 | 2010-11-24 | 广东欧珀电子工业有限公司 | Portable HDMI CEC automatic testing device and testing method thereof |
| CN201708891U (en) * | 2010-07-01 | 2011-01-12 | 广东欧珀电子工业有限公司 | Portable High-Definition Multimedia Interface Consumer Electronics Control(HDMI CEC) automatic tester |
| CN201993553U (en) * | 2011-03-11 | 2011-09-28 | 苏州市欧康诺电子科技有限公司 | Backlight source power supply board for testing |
| CN202614773U (en) * | 2012-05-10 | 2012-12-19 | 秦皇岛市康泰医学系统有限公司 | Portable urine analyzer |
| CN203616547U (en) * | 2013-12-19 | 2014-05-28 | Tcl显示科技（惠州）有限公司 | Test system of liquid crystal display module |
| CN204480644U (en) * | 2015-01-04 | 2015-07-15 | 武汉精测电子技术股份有限公司 | Display module EDID reading and writing data proving installation |
| CN104598325A (en) * | 2015-02-10 | 2015-05-06 | 武汉精测电子技术股份有限公司 | Method for burning and verifying EDID (Extended Display Identification Data) of display module |
| CN206832710U (en) * | 2017-06-12 | 2018-01-02 | 苏州三值精密仪器有限公司 | A kind of Portable X-ray soil heavy metal analyser |
| CN107799042A (en) * | 2017-11-02 | 2018-03-13 | 深圳同兴达科技股份有限公司 | A kind of liquid crystal display die set test board |
| CN107707365A (en) * | 2017-11-08 | 2018-02-16 | 中国电子科技集团公司第二十八研究所 | A kind of radio station remote control switch controller and control method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599894A (en) * | 2019-09-18 | 2019-12-20 | 重庆京东方智慧电子系统有限公司 | Electronic tag and driving method thereof |
| US10984202B2 (en) | 2019-09-18 | 2021-04-20 | Chongqing Boe Smart Electronics System Co., Ltd. | Electronic label and method for driving the same |
| CN110599894B (en) * | 2019-09-18 | 2022-04-15 | 重庆京东方智慧电子系统有限公司 | Electronic tag and driving method thereof |
| US11397447B2 (en) | 2019-09-18 | 2022-07-26 | Chongqing Boe Smart Electronics System Co., Ltd. | Electronic label and method for driving the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104822040B (en) | A kind of multiple format video sequence generation system and method based on FPGA | |
| EP1551002A2 (en) | Control of synchronization of backlight for liquid crystal display apparatus | |
| CN102097050B (en) | A kind of apparatus and method realizing display seamless switching | |
| CN105304000B (en) | Liquid crystal display die set aging testing system | |
| US7804496B2 (en) | Image display apparatus and driving method thereof | |
| US20080316361A1 (en) | Picture signal processing device and picture signal processing method | |
| WO2019205665A1 (en) | Self-monitoring method for display, and display | |
| JP3998323B2 (en) | Screen generator | |
| CN108109602A (en) | Display device | |
| CN109461395A (en) | A kind of display facility information hand-held analyzer and application method | |
| CN103970389A (en) | Display device, method of driving display device, and electronic apparatus | |
| CN101815180A (en) | Signal self-adaptive adapter plate of display screen interface | |
| CN103197907A (en) | Method for realizing switch of projection modes under LINUX tabletop operation system | |
| CN105590591A (en) | Color gamut control method, backlight source and display device | |
| CN101196623A (en) | Device and method for detecting screen chromatic characteristics | |
| US20100220244A1 (en) | Eletronic device, display device, and method of controlling audio/video output of an electronic device | |
| CN103247283A (en) | Screen refreshing method and device | |
| CN116259258A (en) | Vehicle-mounted screen signal link checking method and device, vehicle-mounted screen and storage medium | |
| CN100559853C (en) | A kind of multi-format video signal gathering and analyzing card | |
| US10944934B2 (en) | Method and apparatus for channel switching in interactive smartboard | |
| TWI405180B (en) | System and method for fully automatically aligning quality of image | |
| US7936358B2 (en) | Integrated color management | |
| CN101014930A (en) | Display apparatus, display system and control method thereof | |
| CN217880809U (en) | Device capable of universally testing assembly screen | |
| CN103996364A (en) | Test method and system for color performance of display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190312 |