CN101312030B - Video signal source generating device carried out by programmable logic gate array - Google Patents
Video signal source generating device carried out by programmable logic gate array Download PDFInfo
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- CN101312030B CN101312030B CN2007101075753A CN200710107575A CN101312030B CN 101312030 B CN101312030 B CN 101312030B CN 2007101075753 A CN2007101075753 A CN 2007101075753A CN 200710107575 A CN200710107575 A CN 200710107575A CN 101312030 B CN101312030 B CN 101312030B
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Abstract
A video signal source generator which can utilize programmable logic gate arrays to realize producing video signal sources is composed of a bus unit, a first index value generator, a second index value generator, a combiner, a check list unit, a synchronous signal generator and a synchronous processing unit. An external control unit inputs control signals to the first index value generator, the second index value generator, the check list unit and the synchronous signal generator by the bus unit respectively, and then the first index value generator and the second index value generator respectively output an X (horizontal) direction index value and a Y (vertical) direction index value to the combiner to produce an index value, the index value is then input to the check list unit to obtain color information of a display picture. Simultaneously both the index value and synchronous signals generated by the synchronous signal generator are input to the synchronous processing unit to be processed, and finally a diversified video signal source can be produced.
Description
Technical field
The present invention relates to a kind of employing programmable logic gate array and realize video signal source generating device, be meant that especially a kind of employing programmable logic gate array produces diversified video signal source, to be used for testing the signal source generation device that associated liquid crystal shows module or product.
Background technology
Commonly use and adopt the video signal generator that shows memory architecture, though have advantages such as elasticity height, producible picture and purposes variation; But truly have cost costliness, operation and shortcomings such as difficult are installed.Be not suitable for needing the test macro of a large amount of signal sources, for example: fixed burning machine system, mobile test macro.
Generally apply to the video signal source of fixed burning machine system, even the shared same signal source of collocation signal distributor is reducing the cost of signal source, but make the wiring of signal wire complicated and be unfavorable for installing, operation.Because the framework complexity of video signal generator is added long burn in process, all will make video signal generator produce degree of stability and control shortcomings such as being difficult for reaching reduction of service life.
And generally apply to the video signal source of flow-type test, the independently signal source because each liquid crystal module must be arranged in pairs or groups, consider that cost factor can not adopt the huge high-order video signal generator of quantity, therefore change the video signal generator of adopting simple type, but existing simple type signal source is too simplified really, can not satisfy diversified testing requirement.
This shows that the above-mentioned mode of commonly using still has many disappearances, real non-one kindhearted deviser, and demand urgently being improved.
Summary of the invention
The object of the present invention is to provide a kind of employing programmable logic gate array to realize video signal source generating device, adopt the programmable logic gate array design, produce diversified test signal with simple framework, can satisfy the demand in the test, and have fitting operation easy, effectively reduce cost and improve advantages such as serviceable life.
For reaching the foregoing invention purpose, the invention provides a kind of employing programmable logic gate array and realize video signal source generating device, this device is accepted the control information of an outside control module and is handled the generation source of video information, comprising:
One bus unit, accepting the information of control module according to the test pictures of actual needs, will the setup parameter relevant with test pictures be that the sequential setup parameter of the colouring information of the increment size of index value generator, the table of noting and synchronizing signal exports one first index value generator, one second index value generator, note a table unit and a synchronous signal generator respectively to;
The described first index value generator receives the control signal of control module, and exports horizontal direction index value to a combiner;
The described second index value generator receives the control signal of control module, and exports the vertical direction index value to combiner;
Described combiner, horizontal direction index value and the vertical direction index value that the first index value generator and the second index value generator are exported reconsolidates that (as water intaking square is the low level tuple of new index value to index value, the vertical direction index value is the high-order tuple of new index value), produce an index value and input to the described table unit of noting;
The described table unit of noting receives the control signal of control module and the index value of combiner, and obtains the colouring information of display frame through tabling look-up, and exports it to synchronous signal processing unit;
Described sync generator receives the control signal of control module, and exports the synchronizing signal processing unit to after producing a synchronous signal; And
Described synchronous processing unit is with the information of the described table unit of noting and the signal Synchronizationization of sync generator.
Aforesaid employing programmable logic gate array is realized video signal source generating device, this first index value generator comprises one group of logical-arithmetic unit at least, this group logical-arithmetic unit possesses two kinds of functions, one is to make the part that increases along with pulse signal in the test signal become the systematicness circulation, it is two for making test signal increase a numerical value with pulse signal input is tired, and numerical values recited can be set by control module.
Aforesaid employing programmable logic gate array is realized video signal source generating device, this second index value generator comprises one group of logical-arithmetic unit at least, this group logical-arithmetic unit possesses two kinds of functions, one is the part that increases along with pulse signal to be changed make it become the systematicness circulation, it is two for making test signal increase a numerical value with pulse signal input is tired, and numerical values recited can be set by control module.
Adopt technique scheme, compare to adopt the programmable logic gate array to design with prior art, the present invention produces diversified test signal to simplify framework, and framework complexity, the not good disappearance of degree of stability can satisfy the demand in the test when solving fixed burn in process.
For the test of the determinand of flow-type production line, under the factor that cost of manufacture reduces, the present invention's each independently determinand (as: liquid crystal panel) of can arranging in pairs or groups one to one, and have the easy advantage of fitting operation.
For in detail the present invention being described in detail more, enumerate preferred embodiment and description of drawings as after.
Description of drawings
Fig. 1 realizes the enforcement calcspar of video signal source generating device for the present invention adopts the programmable logic gate array;
Fig. 2 realizes the design calcspar of the index value generator of video signal source generating device for this adopts the programmable logic gate array; And
Fig. 3 realizes the test pictures synoptic diagram of video signal source generating device for this adopts the programmable logic gate array.
Primary clustering symbol description among the figure:
1: video signal source generating device; 11: bus unit; 12: the first index value generators;
13: the second index value generators; 14: combiner; 15: the table unit of noting;
16: sync generator; 17: the synchronizing signal processing unit; 2: control module;
3: the index value generator; 31: logical-arithmetic unit.
Embodiment
See also Fig. 1, realize the enforcement Organization Chart of video signal source generating device for the present invention adopts the programmable logic gate array, by among the figure as can be known, the present invention adopts the programmable logic gate array to realize video signal source generating device 1, comprising:
One bus unit (BUS Unit) 11, accepting the information of an outside control module (Control Unit) 2 according to the test pictures of actual needs, will the setup parameter relevant with test pictures be that the sequential setup parameter of the colouring information of the increment size of index value generator, the table of noting and synchronizing signal exports one first index value generator 12, one second index value generator 13, note a table unit 15 and a synchronous signal generator 16 respectively to;
The described first index value generator (X-Index Generator) 12, the control signal of reception external control unit 2, and output level (X) direction index value to a combiner 14;
The described second index value generator (Y-Index Generator) 13 receives the control signal of external control unit 2, and exports vertical (Y) direction index value to described combiner 14;
Described combiner 14, level (X) the direction index value that the first index value generator 12 and the second index value generator 13 are exported and vertical (Y) direction index value reconsolidate into an index value, and (as water intaking square is the low level tuple of new index value to index value, the vertical direction index value is the high-order tuple of new index value), index value is inputed to the table unit 15 of noting;
The described table unit of noting (Lookup Table Unit) 15 receives the control signal of external control unit 2 and the index value of combiner 14, and obtains the colouring information of display frame through tabling look-up, and exports it to synchronous signal processing unit 17;
Described sync generator (Sync Generator) 16 receives the control signal of external control unit 2, and exports synchronous processing unit 17 to after producing a synchronous signal;
Described synchronous processing unit (Synchronization Unit) 17, the signal Synchronizationization with the colouring information and the sync generator 16 of the table unit 15 of noting can produce a video signal source.
The elasticity and the variation of the video signal source of the present invention's output mainly rely on the first index value generator and the second index value generator to realize, both utilize level and vertical signal are mixed collocation mutually, to produce the output picture of various variation.
The indoor design of the first index value generator (X-Index Generator), the second index value generator (Y-Index Generator) as shown in Figure 2, this index value generator (Index Generator) 3, mainly be made up of one group of logical-arithmetic unit 31, wherein one of logical-arithmetic unit 31 functions are to be responsible for making the part that increases along with pulse signal in the test signal to change to become the systematicness circulation; Two of logical-arithmetic unit 31 functions are to make test signal along with the pulse signal input increases equally, but increase certain numerical value at every turn, this numerical value can be set and carried out calculation process by the external control unit, and being used for taking out in the test signal increasing along with the pulse signal input but round-robin composition not; The index value that these logical-arithmetic unit 31 outputs at last are combined into respectively after treatment; The increment size of controlling this logical-arithmetic unit 31 by control module carries out computing, can arrange the generation rule of index value arbitrarily.
The present invention uses the first index value generator (X-Index) and the second index value generator (Y-Index) simultaneously, just can take into account the variation of level and vertical two directions in the test pictures simultaneously, and then can change the table unit of noting of color in the collocation, arrange the test pictures of customer demand arbitrarily, can magically change become to adopt colourful test pictures more, several typical test pictures, as shown in Figure 3.
In sum, only be preferable exemplifying embodiment of the present invention, be not in order to limit the present invention; All other do not break away from equivalence of the present invention to be modified or displacement, all should be contained in the scope of the invention.
Claims (3)
1. one kind is adopted the programmable logic gate array to realize video signal source generating device, and this device is accepted the information of an outside control module and handle to produce source of video information, it is characterized in that, comprising:
One bus unit, accepting the information of control module according to the test pictures of actual needs, will the setup parameter relevant with test pictures be that the sequential setup parameter of the colouring information of the increment size of index value generator, the table of noting and synchronizing signal exports one first index value generator, one second index value generator, note a table unit and a synchronous signal generator respectively to;
The described first index value generator receives the control signal of control module, and exports horizontal direction index value to a combiner;
The described second index value generator receives the control signal of control module, and exports the vertical direction index value to combiner;
Described combiner, horizontal direction index value and vertical direction index value that the first index value generator and the second index value generator are exported reconsolidate, and produce an index value and input to the described table unit of noting;
The described table unit of noting receives the control signal of control module and the index value of combiner, and obtains the colouring information of display frame through tabling look-up, and exports it to synchronous signal processing unit;
Described sync generator receives the control signal of control module, and exports the synchronizing signal processing unit to after producing a synchronous signal; And
Described synchronous processing unit is with the information of the described table unit of noting and the signal Synchronizationization of sync generator.
2. employing programmable logic gate array as claimed in claim 1 is realized video signal source generating device, it is characterized in that, this first index value generator comprises one group of logical-arithmetic unit at least, this group logical-arithmetic unit possesses two kinds of functions, one is to make the part that increases along with pulse signal in the test signal become the systematicness circulation, it is two for making test signal increase a numerical value with pulse signal input is tired, and numerical values recited can be set by control module.
3. employing programmable logic gate array as claimed in claim 1 is realized video signal source generating device, it is characterized in that, this second index value generator comprises one group of logical-arithmetic unit at least, this group logical-arithmetic unit possesses two kinds of functions, one is the part that increases along with pulse signal to be changed make it become the systematicness circulation, it is two for making test signal increase a numerical value with pulse signal input is tired, and numerical values recited can be set by control module.
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| CN2007101075753A CN101312030B (en) | 2007-05-21 | 2007-05-21 | Video signal source generating device carried out by programmable logic gate array |
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| CN2007101075753A CN101312030B (en) | 2007-05-21 | 2007-05-21 | Video signal source generating device carried out by programmable logic gate array |
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| CN101312030B true CN101312030B (en) | 2011-12-07 |
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| CN105551450B (en) * | 2016-03-10 | 2018-03-27 | 中山乐心电子有限公司 | A kind of segment liquid crystal display screen display drive method and device |
| CN111935521B (en) * | 2020-08-12 | 2022-05-06 | 深圳市奥拓电子股份有限公司 | LED display synchronous control array and LED display system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040252090A1 (en) * | 2003-06-11 | 2004-12-16 | Toppoly Optoelectronics Corp. | Light-on aging test system for flat panel display |
| CN1801313A (en) * | 2004-12-31 | 2006-07-12 | 厦门火炬福大显示技术有限公司 | Image data transmission and display circuit employing FPGA to control FED |
| US20060227127A1 (en) * | 2005-04-07 | 2006-10-12 | Jian-Feng Wang | Video graphic array colorful signal generator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040252090A1 (en) * | 2003-06-11 | 2004-12-16 | Toppoly Optoelectronics Corp. | Light-on aging test system for flat panel display |
| CN1801313A (en) * | 2004-12-31 | 2006-07-12 | 厦门火炬福大显示技术有限公司 | Image data transmission and display circuit employing FPGA to control FED |
| US20060227127A1 (en) * | 2005-04-07 | 2006-10-12 | Jian-Feng Wang | Video graphic array colorful signal generator |
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