CN101815180A - Signal self-adaptive adapter plate of display screen interface - Google Patents
Signal self-adaptive adapter plate of display screen interface Download PDFInfo
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- CN101815180A CN101815180A CN200910046419A CN200910046419A CN101815180A CN 101815180 A CN101815180 A CN 101815180A CN 200910046419 A CN200910046419 A CN 200910046419A CN 200910046419 A CN200910046419 A CN 200910046419A CN 101815180 A CN101815180 A CN 101815180A
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Abstract
The invention discloses a signal self-adaptive adapter plate of a display screen interface, which comprises an input interface unit, a signal format conversion unit, a signal selection switching unit and a signal receiving and processing unit, wherein the input interface unit is an input interface of a plurality of signals with different types; the signal format conversion unit comprises a plurality of signal conversion chips through which the signals with different types, which are received by the input interface unit, into signals with the same type; the signal selection switching unit is a channel switching control switch; and the signal receiving and processing unit comprises a signal processing chip. The invention overcomes the trouble generated in the research and development and production process of a flat panel television or other display devices caused by displays which are required to purchase and use various specifications or are produced by factories due to different concrete requirements of products, simplifies the research and development and production process of the display equipment and reduces the development cost.
Description
[technical field]
The present invention relates to a kind of Signals Transfer Board, particularly relate to a kind of signal self-adaptive adapter plate of display screen interface.
[background technology]
In the research and development and production process of panel TV or other display device; that regular meeting occurs because product specific requirement difference; and cause research and development department need purchase and use the display screen of various different sizes or manufacturer production to test; for research and development enterprise and research staff; this makes the R﹠D cycle elongated relatively; and the cost of cost is also than higher, and the different size display screen repeat usage that buying is returned is low, has also caused cost waste to a certain extent.
Invent a kind of display screen interface signal that can receive arbitrary resolution and they are converted into the device of the signal that same specification display screens can normally show, then can effectively save time and Financial cost with fast speeds.
[summary of the invention]
For addressing the above problem, the invention discloses a kind of signal self-adaptive adapter plate of display screen interface, the present invention can solve in the research and development of panel TV or other flat panel display equipment and production process, occurred because the product specific requirement is different, and cause needs to purchase and use the trouble that display screen brought of various different sizes or manufacturer production.
A kind of signal self-adaptive adapter plate of display screen interface comprises: input interface unit is some signal with different type input interfaces; The signal format converting unit comprises some conversion of signals chips, and these conversion of signals chips are converted to the same type signal with the some dissimilar input signals that described input interface unit receives; Signal is selected switch unit, is passage switching controls switch; And signal processing unit, comprise signal processing chip.
Wherein, described input interface unit comprises TTL input interface, LVDS-TI input interface and LVDS-TN input interface.
Described signal format converting unit comprises the LVDS-TI conversion of signals to be the conversion chip of TTL signal and to be the conversion chip of TTL signal with the LVDS-TN conversion of signals.
Described passage switching controls switch is the passage switching controls toggle switch that 2 bits are arranged.
Described signal processing unit detects and obtains the timing information and the resolution of current input signal, according to the corresponding function module in these parameters configuration signal process chip again, at last signal is outputed to the display screen display image.
Described signal processing chip obtains the level value of this voltage by road display screen supply power voltage in the A/D input port detection input signal of itself.
Described signal processing chip uses the OSD display mechanism of self, with the timing form of the input signal of current reception, comprise that Dot Clock frequency, row are always counted, row is effectively counted, line frequency, total line number, effectively line number, field frequency and supply power voltage value are presented on the display screen.
Beneficial effect of the present invention is, solved in the research and development of panel TV or other flat panel display equipment and production process, occurred because the product specific requirement is different, and cause needs to purchase and use the trouble that display screen brought of various different sizes or manufacturer production, the research and development and the production process of display device have been simplified, the R﹠D costs and the production cost of research and development department and production unit have been reduced, need not to purchase on the basis of new display screen, make full use of existing resource, save time and cost.
[description of drawings]
Fig. 1 is the functional block diagram of signal self-adaptive adapter plate of display screen interface of the present invention.
[embodiment]
Below in conjunction with embodiment and with reference to accompanying drawing the present invention is further described.
As shown in Figure 1, a kind of signal self-adaptive adapter plate of display screen interface comprises: input interface unit 100 is some signal with different type input interfaces; Signal format converting unit 110 comprises some conversion of signals chips, and these conversion of signals chips are converted to the same type signal with some signal with different type that described input interface unit receives; Signal is selected switch unit 120, is passage switching controls switch; And signal processing unit 130, comprise signal processing chip 131.
In this embodiment, described input interface unit 100 comprises TTL input interface 101, LVDS-TI input interface 102 and LVDS-TN input interface 103.
Described signal format converting unit 110 comprises first conversion chip 111, and being about to the LVDS-TI conversion of signals is the conversion chip of TTL signal; Second conversion chip 112, being about to the LVDS-TN conversion of signals is the conversion chip of TTL signal.
Described passage switching controls switch 120 is for there being the passage switching controls toggle switch of 2 bits (BIT).
Wherein, the invention provides three input interfaces, be respectively a TTL signal input interface (calling C1 in the following text), the TI mode signal input interface (calling C2 in the following text) of a LVDS standard and the TN pattern input interface (calling C3 in the following text) of a LVDS standard.The difference of TI and TN be data in the transmission signals high low level put in order different, thereby can cause picture displayed to have unusually.The interface of these 3 types also is present popular and the most widely used display screen interface type.Because 131 of signal processing chips provide TTL signal input interface, in order to handle the screen interface signal of LVDS standard, LVDS-TI input interface and LVDS-TN that we add, and use the first conversion of signals chip 111 that the LVDS-TI conversion of signals of input is the TTL signal, use secondary signal conversion chip 112 that the LVDS-TN conversion of signals of input is the TTL signal.
Passage switching controls switch 120 is used for realizing that the passage of input signal switches.Passage switching controls switch 120 (calling M1 in the following text) is a toggle switch that 2 bits (BIT) are arranged, these 2 bits are used for controlling the output enable state of the first conversion of signals chip 111 (calling V1 in the following text) and the output enable state of secondary signal conversion chip 112 (calling V2 in the following text) respectively, corresponding relation is M1_BIT0 control V1, and M1_BIT1 controls V2.When M1_BIT0=1 (high level), after changing through V1, the signal of C2 input may be output to signal processing chip 131, when M1_BIT0=0 (low level), turn-off the output of V1, that is to say from the signal of C2 input to be passed to signal processing chip 131.This control mode is equally applicable to dealing with relationship between M1_BIT1 and the V2.So we just can be arranged to 01 signal of selecting C2 to import with M1_BIT1_BIT0 by M1_BIT1_BIT0 being arranged to 00 signal of selecting C1 to import, and M1_BIT1_BIT0 is arranged to 10 signals of selecting C3 to import.
LVDS signal from C2, C3 passage is converted into the consistent TTL signal of importing with the C1 passage.Comprise in one group of TTL signal: (1), Dot Clock (DCLK); (2), synchronizing signal, comprising: row is (HSYNC) synchronously, field synchronization (VSYNC), data enable (DE) signal; (3), viewdata signal, comprising: RGB 3 passages totally 24 holding wires; (4) screen supply lines and ground wire.Signal processing chip 131 obtains current input signal incoming timing information by Dot Clock and row, field sync signal, to Dot Clock frequency (DCLK), line frequency (HFREQ) and field frequency (VFREQ) can also always be counted (HTOTAL) and total line number information such as (VTOTAL) by calculating to go in addition except directly.Further always count (HTOTAL) and a total line number (VTOTAL) can obtain that row is effectively counted (HACTIVE) and effective line number (VACTIVE) by data enable signal (DE) and row.Signal processing chip 131 is responsible for handling input signals, according to the demonstration of display screen 140 respectively the rate form input picture carried out convergent-divergent handle, and export to display screen 140, display image.Signal processing chip 131 uses the DE signal can realize the picture material that shows by the processing back of transferring and is not as many to the displaying contents that shields directly by switching.Signal processing chip 131 will shield supply power voltage by himself A/D input pin simultaneously and convert 8 partial pressure value to.The transformation range of 8 partial pressure value is made as 0～255.It is 0V that minimum value 0 is represented input voltage, on behalf of input voltage, maximum 255 be+12V, Shu Ru actual screen supply power voltage is by obtaining the partial pressure value of a correspondence after the A/D conversion like this, and master chip calculates this partial pressure value in proportion, just can draw current screen supply power voltage value.Signal processing chip 131 shows timing information and the screen supply power voltage value that obtains with the OSD mechanism of itself after a while by display screen P1.These information that the user provides by comparison signal process chip 131 judge whether current input signal meets the specification requirement of the liquid crystal display screen of actual needs configuration in the product design.
15 inches liquid crystal display screen SVA150XG04TB that a for example existing SVA-NEC produces, it as display screen 140, according in the specification requirement of this liquid crystal display screen change signal processing chip 131 programs about the parameter of output, recompilate, connect and burning program, finish test platform.Here need to prove, enterprises may also have other many sizes to differ, liquid crystal display screen diversified in specifications, need make full use of these resources, whenever build a test platform only need be when building test platform the liquid crystal display screen specification of actual use regenerate the program of a signal processing chip 131 and burning is just passable again, finish these work and only need a spot of time, and in case a test platform is built the testing equipment that just can be used as enterprises after finishing uses for a long time, select a little bit smaller liquid crystal display screen also to have the saving space, the advantage that test platform is convenient to move.
If now specify in the LCD TV product liquid crystal display screen that uses 46 inches of a slices, the research staff's liquid crystal display screen that need purchase same specification is finished R﹠D work generally speaking.The test platform that at this moment can use signal self-adaptive adapter plate of display screen interface of the present invention to build replaces 46 inches liquid crystal display screen, also can display image because the signal of originally exporting to liquid crystal display screen is directly inputed to the keyset test platform, and the picture material that at this moment on 15 inches screens of test platform, shows with directly receive 46 inches liquid crystal display screen on the picture material that shows be the same (so-called picture material is consistent when being meant that image is presented on the screen starting position, the upper left corner of image be the same) with lower right corner end position.Just the switching test platform is can substitute the liquid crystal display screen that uses in the actual product fully to come display image.Similarly, display requirement for different sizes such as 32 inches, 37 inches can be finished R﹠D work by the present invention, though 32,37, the display resolution of 46 inches screen is all different, but the switching test platform is designed to receive on different resolution screen interface signal and 15 inches the display screen with the rear end of its demonstration, and the switching test platform can receive the screen interface signal of arbitrary resolution and display it in theory.
Thus, the invention solves in the research and development of panel TV or other flat panel display equipments and production process, occurred because product specific requirement different, and the needs that cause go to purchase and use the problem that screen brought of various different sizes or producer.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model design; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (7)
1. a signal self-adaptive adapter plate of display screen interface is characterized in that, comprises:
Input interface unit is some signal with different type input interfaces;
The signal format converting unit comprises some conversion of signals chips, and these conversion of signals chips are converted to the same type signal with the some dissimilar input signals that described input interface unit receives;
Signal is selected switch unit, is passage switching controls switch; And
Signal processing unit comprises signal processing chip.
2. signal self-adaptive adapter plate of display screen interface according to claim 1 is characterized in that, described input interface unit comprises TTL input interface, LVDS-TI input interface and LVDS-TN input interface.
3. signal self-adaptive adapter plate of display screen interface according to claim 1 is characterized in that, described signal format converting unit comprises the LVDS-TI conversion of signals to be the conversion chip of TTL signal and to be the conversion chip of TTL signal with the LVDS-TN conversion of signals.
4. signal self-adaptive adapter plate of display screen interface according to claim 1 is characterized in that, described passage switching controls switch is the passage switching controls toggle switch that 2 bits are arranged.
5. signal self-adaptive adapter plate of display screen interface according to claim 1, it is characterized in that, described signal processing unit detects and obtains the timing information and the resolution of current input signal, according to the corresponding function module in these parameters configuration signal process chip again, at last signal is outputed to the display screen display image.
6. signal self-adaptive adapter plate of display screen interface according to claim 5 is characterized in that, described signal processing chip obtains the level value of this voltage by road display screen supply power voltage in the A/D input port detection input signal of itself.
7. signal self-adaptive adapter plate of display screen interface according to claim 5, it is characterized in that, described signal processing chip uses the OSD display mechanism of self, with the timing form of the input signal of current reception, comprise that Dot Clock frequency, row are always counted, row is effectively counted, line frequency, total line number, effectively line number, field frequency and supply power voltage value are presented on the display screen.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102681807A (en) * | 2011-03-15 | 2012-09-19 | 联想(北京)有限公司 | Electronic equipment and interface identification method |
| CN103327281A (en) * | 2012-03-20 | 2013-09-25 | 联想(北京)有限公司 | Format conversion method and format conversion circuit |
| WO2014201722A1 (en) * | 2013-06-21 | 2014-12-24 | 深圳市华星光电技术有限公司 | Universal circuit board of short-circuiting bar |
| CN104571991A (en) * | 2014-12-26 | 2015-04-29 | 京东方科技集团股份有限公司 | Control panel, illumination equipment and illumination method |
| CN107731182A (en) * | 2017-10-20 | 2018-02-23 | 京东方科技集团股份有限公司 | Display adapter(unit) |
| CN110718188A (en) * | 2019-11-20 | 2020-01-21 | 桂林海威科技股份有限公司 | FPGA-based display screen control card output signal conversion method and device |
| CN111478819A (en) * | 2020-05-27 | 2020-07-31 | 一汽奔腾轿车有限公司 | Configuration method of CAN, L IN and Ethernet configurable gateway |
| CN112203035A (en) * | 2020-09-30 | 2021-01-08 | 深圳创维－Rgb电子有限公司 | Image input adapter plate and image signal detection system |
| CN113625981A (en) * | 2021-07-21 | 2021-11-09 | 展讯通信（上海）有限公司 | Multi-screen display method and device |
| CN113781944A (en) * | 2021-08-19 | 2021-12-10 | 瑞芯微电子股份有限公司 | Method and device for supporting different display screens by same hardware display interface |
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| CN102681807A (en) * | 2011-03-15 | 2012-09-19 | 联想(北京)有限公司 | Electronic equipment and interface identification method |
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| CN103327281A (en) * | 2012-03-20 | 2013-09-25 | 联想(北京)有限公司 | Format conversion method and format conversion circuit |
| WO2014201722A1 (en) * | 2013-06-21 | 2014-12-24 | 深圳市华星光电技术有限公司 | Universal circuit board of short-circuiting bar |
| CN104571991A (en) * | 2014-12-26 | 2015-04-29 | 京东方科技集团股份有限公司 | Control panel, illumination equipment and illumination method |
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| CN110718188A (en) * | 2019-11-20 | 2020-01-21 | 桂林海威科技股份有限公司 | FPGA-based display screen control card output signal conversion method and device |
| CN111478819A (en) * | 2020-05-27 | 2020-07-31 | 一汽奔腾轿车有限公司 | Configuration method of CAN, L IN and Ethernet configurable gateway |
| CN112203035A (en) * | 2020-09-30 | 2021-01-08 | 深圳创维－Rgb电子有限公司 | Image input adapter plate and image signal detection system |
| CN113625981A (en) * | 2021-07-21 | 2021-11-09 | 展讯通信（上海）有限公司 | Multi-screen display method and device |
| CN113781944A (en) * | 2021-08-19 | 2021-12-10 | 瑞芯微电子股份有限公司 | Method and device for supporting different display screens by same hardware display interface |
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