CN101431693B - Screen distribution apparatus of panel TV - Google Patents
Screen distribution apparatus of panel TV Download PDFInfo
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- CN101431693B CN101431693B CN200710124359XA CN200710124359A CN101431693B CN 101431693 B CN101431693 B CN 101431693B CN 200710124359X A CN200710124359X A CN 200710124359XA CN 200710124359 A CN200710124359 A CN 200710124359A CN 101431693 B CN101431693 B CN 101431693B
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Abstract
The invention provides a flat television distribution screen device which includes a communication module, a command analysis module, an image generating module, a time sequence generating module, a cache module and an encoding module, wherein, the communication module is used for receiving distribution screen testing control command and transmitting the command to the command analysis module; the command module is used for analysing the distribution screen testing control command, and generating video time sequence according with analysed result; the image generating module generates image information according with indication of the command analysis module and the time sequence generating module; the cache module is used for caching image information generated by the image generating module; the encoding module is used for encoding the image information and transmitting to the flat display.
Description
Technical field
The invention belongs to TV technology, relate in particular to the technology that panel TV is joined screen.
Background technology
It has been trend of the times that panel TV replaces traditional CRT (cathode ray tube) TV, and in the production process of panel TV, joining screen is a very important job.Join screen and be meant that the flat-panel monitor at the different model different manufacturers carries out parameter setting in the production process of panel TV, the display effect to this flat-panel monitor detects then.
Because different screens have different separately input characteristics from different producers, the panel TV manufacturer need join screen work in the specifications and models of changing screen or after adopting different suppliers' screen.Because flat-panel monitor supplier's continuous increase, and the continual renovation of flat display technology, the manufacturer of panel TV is also constantly adopting the new model and the flat-panel monitor of specification, perhaps often changes the supplier of flat-panel monitor.Therefore, the screen workload of joining of panel TV constantly increases.
Available technology adopting is directly joined the technical scheme of shielding parametric test on final product, this check is relevant with specific TV scheme, when television set adopts different screens, need the peopleware to revise the source code level program, improved the complexity of joining screen, because the difference of scheme makes the analysis of joining the screen problem is become complicated simultaneously, be not easy to distinguish the problem or the TV output problem of screen.
Summary of the invention
The object of the present invention is to provide a kind of screen distribution apparatus of panel TV, be intended to solve in the prior art panel TV joined and shield too complicated problems.
For achieving the above object, the technical solution used in the present invention is as follows, and a kind of screen distribution apparatus of panel TV, described device comprise communication module, command analysis module, image generation module, sequence generation module, cache module and coding module, wherein:
Described communication module links to each other with described command analysis module, is used for receiving joining screen test control command, and is used for the described screen test control command of joining is transferred to described command analysis module;
Described command analysis module links to each other with the image generation module with described sequence generation module, be used for the described screen test control command of joining is resolved, and be used for indicating described sequence generation module to produce the video sequential according to analysis result, indicate described image generation module to produce image information;
Described image generation module links to each other with cache module with described sequence generation module, be used for the video timing sequence generating image information that produces according to the indication of described command analysis module and described sequence generation module, and be used for described image information is transferred to described cache module;
Described cache module links to each other with described sequence generation module, is used for the image information that the described image generation module of buffer memory produces, and is used for described image information is transferred to described coding module;
Described coding module links to each other with sequence generation module with described cache module, be used for showing with being transferred to flat-panel monitor after the described encoding image information, described coding module is a Low Voltage Differential Signal transmission LVDS coding sending module, and being used for transistor-transistor logic level TTL encoding image information is LVDS signal format.
Described communication module receives, and to join screen test control command be the order of shielding parameter generating of joining according to tester's input of PC or single-chip microcomputer.
The described screen parameter of joining is in the following parameter one or multinomial: the pixel number HTOTAL of every row, every line number VTOTAL, the effective display width of row, effectively show height, row field synchronization parameter and polarity, pixel clock scope, field frequency scope and electrifying timing sequence.
Described video sequential comprises a capable sequential and a sequential.
Described image information comprises test pictures, GTG, caidiao opera, monochromatic field and character.
Described cache module is synchronous DRAM SDRAM.
Described command analysis module is programmable logic device FPGA, and described image generation module is FPGA, and described sequence generation module is FPGA.
Described sequence generation module also is used for revising the electrifying timing sequence parameter according to the electrifying timing sequence order, by the modification to the electrifying timing sequence parameter, satisfies the demand signals of described flat-panel monitor in start-up course.The present invention overcomes the deficiencies in the prior art, employing drives panel display screen by screen distribution apparatus independently, the tester will join screen parameter input PC or single-chip microcomputer, PC or single-chip microcomputer are according to the control command that the screen parameter generating is controlled screen distribution apparatus of joining of input, and screen distribution apparatus produces the video sequential according to control command and image information send flat-panel monitor to carry out the technique for displaying scheme.Screen distribution apparatus provided by the invention can be independent of specific TV scheme, and the tester can join the screen parameter according to the property settings of display screen, can test each key parameter of screen targetedly; Technical scheme provided by the invention can be carried out rapid evaluation to the performance of display screen in development, need not test on final products.
Description of drawings
Fig. 1 is the theory diagram of the described screen distribution apparatus of the embodiment of the invention;
Fig. 2 is the circuit diagram of the described screen distribution apparatus of the embodiment of the invention;
Fig. 3 is that the described screen distribution apparatus of the embodiment of the invention is joined the system diagram when shielding test.
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.
The theory diagram of screen distribution apparatus provided by the invention comprises communication module, command analysis module, image generation module, sequence generation module, cache module, the LVDS sending module of encoding as shown in Figure 1, wherein:
Communication module is used for the order that the acceptance test personnel send by PC, perhaps be used for the order of the logical keys of single chip microcomputer input of acceptance test personnel, as set electrifying timing sequence, setting display parameters, setting field frequency or the like order, then these command transfer are arrived the command analysis module;
The command analysis module is used for order is resolved, and produce the video sequential according to the order control timing generation module that is received, and control chart produces image information as generation module;
Sequence generation module is used for passing the instruction of coming according to the command analysis module, comprise: HTOTAL (pixel number of every row), VTOTAL (every line number), row field synchronization parameter and polarity, pixel clock scope, field frequency scope etc., produce the video sequential by these instructions, by pixel clock is counted, produce the row sequential, by to the row counting, produce a sequential again, pixel clock wherein can be produced by phase-locked loop;
Sequence generation module also is used for according to the electrifying timing sequence order, by the modification to the electrifying timing sequence parameter, satisfies the demand signals of display screen in start-up course; In addition, sequence generation module also is used for according to order, as the supply power voltage, mode of operation etc. of screen, other control informations that produce screen;
The image generation module is used for producing according to the command analysis module and passes the instruction of coming, comprise: the effective display width of row, effective height, frame parameter etc. of showing, video timing sequence generating image information according to these instructions and sequence generation module transmission, as test pictures commonly used, GTG, caidiao opera, monochromatic field, character etc., and image information is transferred to the cache module buffer memory;
LVDS coding sending module is used for the information of buffer memory in the cache module is encoded, and is the output of LVDS (transmission of Low Voltage Differential Signaling Low Voltage Differential Signal) signal format with TTL (Transistor-Transistor Logic transistor-transistor logic level) encoding image information.
LVDS coding sending module links to each other with flat-panel monitor, the image information behind the coding is sent to flat-panel monitor show.
During specific implementation, command analysis module, image generation module, sequence generation module can be realized by FPGA (programmable logic device), with generating video sequential and image information, and finish with the communication of external device (ED) and to the control of whole system, cache module can adopt SDRAM (SynchronousDynamic random access memory synchronous DRAM).
The circuit diagram of the screen distribution apparatus of employing FPGA comprises FPGA, EEPROM, phase-locked loop, LVDS coding sending module, SDRAM, FLASH memory etc. as shown in Figure 2, wherein:
FPGA is responsible for screen distribution apparatus and outside communication, finishes the control to screen distribution apparatus, is built-in with sequence generation module and image generation module;
EEPROM is used for preserving screen parameter certificate; Phase-locked loop is used to produce required pixel clock; The FLASH memory is used for storing screen distribution apparatus and moves needed program as program storage;
The man-machine interaction end that is connected with screen distribution apparatus has dual mode, and one can show by single-chip microcomputer, button and LCD to be realized, with the communication of FPGA can be by serial ports 2 as shown in Figure 2; It two also can be realized by PC, and serial ports 1 also is provided among Fig. 2, is used for finishing the communication with external PC.
Below be the application of screen distribution apparatus in joining the screen test process that the example explanation embodiment of the invention provides with characteristics of luminescence test.The purpose of characteristics of luminescence test is in order to grasp the light-emitting characteristic curve of screen, to adjust to follow-up GAMMA foundation is provided, and this also is an image quality adjustment link foremost.The connection of test macro as shown in Figure 3, the screen distribution apparatus that the embodiment of the invention provides is connected with liquid crystal display screen to be tested with PC respectively, liquid crystal display screen is connected with the colour temperature instrument.Wherein screen distribution apparatus is connected with the colour temperature instrument with PC by serial ports, is connected with liquid crystal display screen by the LVDS holding wire, and simultaneously, the colour temperature instrument also is connected by serial ports with PC,
During test, the tester is provided with at the PC end and joins the screen parameter, comprise: HTOTAL (pixel number of every row), VTOTAL (every line number), the effective display width of row, the field effectively shows height, row field synchronization parameter and polarity, the pixel clock scope, the field frequency scope, electrifying timing sequence etc., the correctness of these parameters is the necessary conditions that guarantee the screen steady operation, the tester can directly revise on PC at different screens and join the screen parameter, when joining screen at every turn, the tester is input to the new screen parameter of joining among the PC, finishes the detection of shielding parameter to joining according to follow-up flow process then.
Send corresponding test control command by PC according to the different screen parameters of joining, these control commands comprise HTOTAL, VTOTAL, the effective display width of row, effectively show that height, the synchronous width of row, the synchronous front porch width of row, the synchronous back porch width of row, field synchronization width, field synchronization front porch width, field synchronization back porch width, line frequency, field frequency, point frequently and picture (Pattern) parameter such as the parameters such as GTG number, brightness degree of needs, are transferred to screen distribution apparatus by serial ports;
After screen distribution apparatus receives above-mentioned order, produce required sequential and image information and output to liquid crystal display screen, liquid crystal display displays images information, the colour temperature instrument is gathered the illuminated message of liquid crystal display screen, send to PC by serial ports, PC just can obtain having shielded the curve of the characteristics of luminescence like this.
PC according to specific algorithm computation GAMMA offset, according to the data after the compensation, controls the output of screen distribution apparatus then again behind the light-emitting characteristic curve that obtains shielding, test light-emitting characteristic curve once more, to check compensation effect.If compensation effect is bad, then can be at once recomputate the GAMMA offset according to the defective of compensation effect, the great like this accuracy that has improved the GAMMA compensation has also improved the efficient that obtains the GAMMA offset simultaneously.
If test result shows, join and shield the display requirement that parameter satisfies flat-panel monitor, then will join the importing of screen parameter and join the screen source program, for with above-mentioned testing process in adopt the same screen, the production line staff can directly adopt the screen parameter of joining after the test to finish configuration to screen, and does not need to join the screen test as prior art on the final products line.
As mentioned above, the screen distribution apparatus that technical solution of the present invention provides can be independent of specific TV scheme, drive flat-panel monitors such as liquid crystal display screen by screen distribution apparatus provided by the invention, joining the screen parameter makes amendment by interactive man-machine interface, can join the screen parameter according to the property settings electrifying timing sequence that shields, display parameters, pixel clock, field frequency, test pictures etc., can test each key parameter of screen targetedly like this; Technical scheme provided by the invention can be tested screen targetedly in development, need not test on final products, and direct importing of screen data of joining that test is determined joined the screen source program, is used for finishing the screen of joining of production line.
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 (8)
1. a screen distribution apparatus of panel TV is characterized in that, described device comprises communication module, command analysis module, image generation module, sequence generation module, cache module and coding module, wherein:
Described communication module links to each other with described command analysis module, is used for receiving joining screen test control command, and is used for the described screen test control command of joining is transferred to described command analysis module;
Described command analysis module links to each other with the image generation module with described sequence generation module, be used for the described screen test control command of joining is resolved, and be used for indicating described sequence generation module to produce the video sequential according to analysis result, indicate described image generation module to produce image information;
Described image generation module links to each other with cache module with described sequence generation module, be used for the video timing sequence generating image information that produces according to the indication of described command analysis module and described sequence generation module, and be used for described image information is transferred to described cache module;
Described cache module links to each other with described sequence generation module, is used for the image information that the described image generation module of buffer memory produces, and is used for described image information is transferred to described coding module;
Described coding module links to each other with sequence generation module with described cache module, be used for showing with being transferred to flat-panel monitor after the described encoding image information, described coding module is a Low Voltage Differential Signal transmission LVDS coding sending module, and being used for transistor-transistor logic level TTL encoding image information is LVDS signal format.
2. device according to claim 1 is characterized in that, described communication module receives, and to join screen test control command be the order of shielding parameter generating of joining according to tester's input of PC or single-chip microcomputer.
3. device according to claim 2, it is characterized in that the described screen parameter of joining is in the following parameter one or multinomial: the pixel number HTOTAL of every row, every line number VTOTAL, the effective display width of row, effectively show height, row field synchronization parameter and polarity, pixel clock scope, field frequency scope and electrifying timing sequence.
4. device according to claim 1 is characterized in that, described video sequential comprises a capable sequential and a sequential.
5. device according to claim 1 is characterized in that described image information comprises test pictures, GTG, caidiao opera, monochromatic field and character.
6. device according to claim 1 is characterized in that, described cache module is synchronous DRAM SDRAM.
7. device according to claim 1 is characterized in that, described command analysis module is programmable logic device FPGA, and described image generation module is FPGA, and described sequence generation module is FPGA.
8. device according to claim 1, it is characterized in that, described sequence generation module also is used for revising the electrifying timing sequence parameter according to the electrifying timing sequence order, by the modification to the electrifying timing sequence parameter, satisfies the demand signals of described flat-panel monitor in start-up course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710124359XA CN101431693B (en) | 2007-11-05 | 2007-11-05 | Screen distribution apparatus of panel TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710124359XA CN101431693B (en) | 2007-11-05 | 2007-11-05 | Screen distribution apparatus of panel TV |
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| CN101431693A CN101431693A (en) | 2009-05-13 |
| CN101431693B true CN101431693B (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710124359XA Expired - Fee Related CN101431693B (en) | 2007-11-05 | 2007-11-05 | Screen distribution apparatus of panel TV |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102346995A (en) * | 2010-08-03 | 2012-02-08 | 深圳Tcl新技术有限公司 | Screen configuration method for liquid crystal display device |
| CN102169665A (en) * | 2011-03-17 | 2011-08-31 | 华容电子（昆山）有限公司 | Mainboard testing controller of liquid crystal display (LCD) and liquid crystal display television (LCDTV) |
| CN102800269A (en) * | 2011-05-27 | 2012-11-28 | 康佳集团股份有限公司 | Device for carrying out screen parameter configuration and debugging on display screen |
| CN102651193B (en) * | 2011-09-06 | 2014-10-22 | 京东方科技集团股份有限公司 | LED (Light Emitting Diode) display driver and display device |
| CN103137047B (en) * | 2011-12-01 | 2016-05-18 | 北京牡丹视源电子有限责任公司 | A kind of on TFT liquid crystal display the system and method for Display control computer screen arbitrary region |
| CN102446477B (en) * | 2011-12-30 | 2013-11-20 | 武汉精测电子技术股份有限公司 | Liquid crystal module test device with display port (DP) interface and test method thereof |
| CN103050073B (en) * | 2012-12-26 | 2015-08-12 | 武汉精测电子技术股份有限公司 | DP decoding and the self-adjusting liquid crystal module method of testing of resolution and device |
| CN103474012B (en) * | 2013-09-04 | 2017-01-11 | 深圳Tcl新技术有限公司 | Screen matching method of display device and display device |
| CN103647918B (en) * | 2013-12-20 | 2017-04-12 | 广东威创视讯科技股份有限公司 | Video synchronization method and device |
| CN104270632B (en) * | 2014-09-29 | 2017-01-18 | 深圳创维－Rgb电子有限公司 | Measuring instrument and method for screen parameters of television set |
| CN107452306B (en) * | 2017-08-17 | 2021-10-01 | 京东方科技集团股份有限公司 | Tool jig for detecting display panel and detection method thereof |
| CN107845357A (en) * | 2017-09-28 | 2018-03-27 | 深圳前海骁客影像科技设计有限公司 | Measurement jig lights the method and device of display screen |
| CN109147634B (en) * | 2018-10-22 | 2022-05-27 | 苏州华兴源创科技股份有限公司 | Device and method for generating display screen detection signal |
| CN114245029B (en) * | 2021-12-20 | 2023-08-01 | 北京镁伽科技有限公司 | FPGA-based data stream processing method and device and PG equipment |
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