CN201238363Y - Display image movement response test equipment - Google Patents
Display image movement response test equipment Download PDFInfo
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- CN201238363Y CN201238363Y CNU2008201087816U CN200820108781U CN201238363Y CN 201238363 Y CN201238363 Y CN 201238363Y CN U2008201087816 U CNU2008201087816 U CN U2008201087816U CN 200820108781 U CN200820108781 U CN 200820108781U CN 201238363 Y CN201238363 Y CN 201238363Y
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Abstract
The utility model provides a motion response testing device for display images and is characterized by comprising: a mainboard, a keyboard, and a display. The mainboard consists of a control unit, an image signal generation and bus interface unit, and a memory. The memory stores test image data; the control unit is connected with the memory, and calls and adjusts the test image data stored in the memory; the control unit is connected with the image signal generation and bus interface unit by an address data bus, and sends the adjusted test image data to the image signal generation and bus interface unit; the image signal generation and bus interface unit generates a test image signal based on the adjusted test image data; the image signal generation and bus interface unit is also connected with the keyboard and the display respectively through a keyboard interface and a display interface. The device is special test equipment used for testing the image quality parameters of moving images of a display, such as smearing time, rise/fall time, delay time, and the like.
Description
Technical field
The utility model relates to a kind of testing equipment that is used to detect the kinds of displays image motion response times such as CRT, LCD, PDP, more particularly, the utility model relates to the special test equipment of image quality parameters such as a kind of moving image hangover time that is used to detect kinds of displays, rise and fall time, delay-time difference, belongs to the display quality detection range.
Background technology
For the display of any kind of, after pixel is activated signal excitation, changes to final state brightness by original brightness and all can not finish moment in principle, long or short existence postpones and transition.Promptly can show as moving image from macroscopic perspective and have visual sense feelings such as hangover, edge blurry, color displacement.Thisly be referred to as correction of motion artefacts by the caused image deterioration of image motion.In recent years, along with the extensive use of new displays such as LCD, PDP in field of display, correction of motion artefacts receives the concern of scholar and industry, becomes the focus of many documents.Particularly " live image response time (MPRT) " and corresponding method of measurement thereof become hot issue in the industry and are considered as the significant parameter of moving image quality.
Yet the detection of live image response time (MPRT) depends on extremely complicated measuring equipment of a cover and loaded down with trivial details test program, therefore is unsuitable for the measuring means as commodity.So, the effect that we show from image, in patent application formerly: in 200610089008.5, proposed notions such as hangover time, and provide a kind of and parameters such as the hangover time of moving image, rise and fall time, delay-time difference are carried out measuring method for measuring based on the hangover time test card.But in this patent application, we have only proposed hangover time test card and using method thereof, and a kind of concrete special test equipment is not provided.Therefore, we are through summary and the practice of this several years, have proposed a kind of special test equipment that is more suitable for actual use on the basis of achievement before.
Summary of the invention
The purpose of this utility model is to provide a kind of special test equipment of the display image motion response of kinds of displays as image quality parameters such as moving image hangover time, rise and fall time, delay-time difference that be used to detect.
The purpose of this utility model is achieved by following technical proposals:
Display image motion response test equipment is characterized in that: comprise mainboard, keyboard, display screen;
Described mainboard comprises control unit, picture signal generation and Bus Interface Unit and memory; Described store memory contains the test pattern data; Described control unit links to each other with this memory, calls and adjust the test pattern data of described store memory storage; Described control unit generates with described picture signal by address data bus and Bus Interface Unit links to each other, and adjusted test pattern data is sent to picture signal generates and Bus Interface Unit; Described picture signal generates and Bus Interface Unit generates test image signal according to these adjusted test pattern data;
Described picture signal generation and Bus Interface Unit link to each other with display screen with described keyboard also respectively by keyboard interface and display interface.
Described mainboard also includes digital to analog conversion and filter circuit; Described picture signal generation and Bus Interface Unit link to each other with this digital to analog conversion and filter circuit, and the test image signal of exporting is converted to analog signal.
Described control unit also links to each other with serial ports; Control unit can be connected with computer by this serial ports.
The test image signal that described picture signal generates and Bus Interface Unit generates comprises that three are walked crosswise; During walking crosswise, each comprises a segment respectively; Boundary alignment before and after the segment during odd number is walked crosswise.
The test image signal that described picture signal generates and Bus Interface Unit generates comprises that seven are walked crosswise; During walking crosswise, each comprises a segment respectively; Boundary alignment before and after the segment during odd number is walked crosswise; The second, the pixel that staggers forward, backward respectively of the segment during the 6th segment the relative the 4th in walking crosswise is walked crosswise.
What described control unit adopted is single-chip microcomputer; That described picture signal generation and Bus Interface Unit adopt is FPGA.
The beneficial effects of the utility model are: the image quality parameter such as moving image hangover time, rise and fall time, delay-time difference that can detect kinds of displays by the designed display image motion response test equipment of the utility model easily.
Description of drawings
Fig. 1 is in order to detect the test pattern of moving image parameter;
Fig. 2 is the circuit module schematic diagram of mainboard;
Fig. 3 is the internal module structured flowchart of picture signal generation and Bus Interface Unit;
Fig. 4 is the circuit diagram of control unit;
Fig. 5 is the circuit diagram of picture signal generation and Bus Interface Unit;
Fig. 6 is the circuit diagram of digital to analog conversion and filter circuit.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
One, the test pattern of moving image parameter and test philosophy
People find that sometimes moving image can lengthening on the direction of motion when watching moving image, for example ball has become ellipsoid, thereby feels stayed ghost on the background of its back, and this phenomenon is called hangover visually.This be since pixel after being activated signal excitation, brightness changes and can not moment finish caused.This conditions of streaking sometimes might not be to elongate image, shortens image and belongs to conditions of streaking too, is called negative streaking.In addition, the bright object on the dark background and the degree of dark its hangover of object on the bright background also are not quite similar during image motion.Therefore, we weigh the moving image quality of display usually by bright hangover time, dark trailing time, motion rise time, the fall time of moving, these five parameters of delay-time difference.
Fig. 1 is in order to detect the test pattern of moving image parameter.This test pattern comprises that seven are walked crosswise, and comprises a rectangle segment during each is walked crosswise.Shown in the figure mark, wherein the segment of odd-numbered line is designated as D, and the part in the odd-numbered line beyond the segment is that the background of segment D is designated as D1.Two, the segment of four, six row is designated as A, B, C respectively, and its corresponding background is designated as A1, B1, C1.Border (determining forward and backward border) alignment before and after each segment D according to the direction of motion.The relative respectively segment B with segment C of the segment A pixel that staggers forward, backward is used to confirm the accurate position of segment B.
During detection, determine the color of each segment of A-D and respective background A1-D1 thereof in advance according to the image parameter that will detect.Simultaneously, determine that the position between segment B and the segment D concerns.Test pattern after determining in display during horizontal movement since conditions of streaking exist position between segment B and the segment D to concern to change.At this moment, only need to regulate the position relation between segment B and the segment D, make segment B and segment D under motion state, keep the position relation under original inactive state.Can calculate the detected image parameter of wanting by the pixel count of regulating segment B.
Be example to detect bright hangover time below, be described further using above-mentioned test pattern detected image parameter.
When detecting bright hangover time, segment A-D is a white, and background A1-D1 is black.Test pattern under static state, the trailing edge of segment B aligns with the leading edge of segment D.The display field frequency of supposing this bright hangover test pattern of output is Fv, and the speed that moves horizontally of image (every mobile pixel count) is Vf.After image begins to move, because the trailing edge of conditions of streaking segment B no longer aligns with the leading edge of segment D.At this moment, mobile segment B makes that the trailing edge of segment B aligns with the leading edge of segment D under the motion state.The pixel count that segment B is moved is N.Bright hangover time T then to be measured can (Fv * Vf) calculates and gets according to formula T=N ÷.
Other image parameters also all can detect by color and the position relation that changes segment A-D in the above-mentioned test pattern, just give unnecessary details no longer one by one at this.
Should be pointed out that above-mentioned segment A and segment C only are in order to determine the position relation between segment B and the segment D more accurately, to avoid macroscopic error.But in use, only keep in the above-mentioned test pattern walk crosswise 3 to walk crosswise 5 these three walk crosswise, also can finish the basic purpose of detected image parameter.Therefore, the form of this kind test pattern also should be within the protection range of this patent.
Two, display image motion response test equipment
The special test equipment that the detection principle design that display image motion response test equipment of the present utility model promptly is based on above-mentioned test pattern forms.This equipment is made of mainboard, keyboard, display screen three parts.Wherein, mainboard is the core circuit of equipment.
Fig. 2 is the circuit module schematic diagram of mainboard.Wherein main functional modules is that control unit, picture signal generate and Bus Interface Unit.
Control unit is the major function control and the parameter calculation unit of equipment.As shown in the figure, control unit is connected with memory.Store the required test pattern data of the various moving image parameters of test in this memory.Control unit is read corresponding test pattern data according to user's test needs from memory, and adjusts the parameter (as position relation etc. between the color of test pattern, brightness, each segment) of this test pattern according to the test needs of reality.Control unit is sent to picture signal by address data bus with adjusted test pattern data and generates and Bus Interface Unit.After the test pattern adjustment was suitable, control unit promptly can be according to the calculation of parameter result of current test pattern.
In addition, also be provided with a serial ports on the testing equipment of present embodiment, control unit can be connected with computer by this serial ports.Like this, this testing equipment just can be passed through these interface down loading updating test pattern data, and is stored in the memory through control unit.Thereby, make this testing equipment have extensibility preferably.Equally, the user also can control this testing equipment from computer by this interface.Thereby, make this testing equipment have the possibility of Long-distance Control.
Picture signal generates and Bus Interface Unit is used to generate the required test image signal of display, and interrelates with each communication interface.Fig. 3 is the internal module structured flowchart of picture signal generation and Bus Interface Unit.Comprise in picture signal generation and the Bus Interface Unit: sweep signal generation module, test pattern generation module, test pattern output interface, keyboard processing module and demonstration processing module.
As Fig. 2, shown in Figure 3, picture signal generation and Bus Interface Unit are by the test pattern data of address data bus reception from control unit.Sweep signal generation module, test pattern generation module generate the required test image signal of display according to this test pattern data transaction, and are exported by the test pattern output interface.The test image signal that picture signal generates and Bus Interface Unit generated in the present embodiment is a digital signal, is suitable for digital display device.But, be analog signal in view of what also have a lot of displays employings, the testing equipment of present embodiment also provides corresponding analog signal output.On mainboard, also be provided with the digital to analog conversion and the filter circuit that link to each other with picture signal generation and Bus Interface Unit and be used for the test image signal of number format is converted to analog signal, corresponding analog format test image signal externally is provided.
As shown in the figure, picture signal generation and Bus Interface Unit link to each other with display screen with aforementioned keyboard also respectively by keyboard interface and display interface.Carry out the switching of signal respectively by keyboard processing module in picture signal generation and the Bus Interface Unit and demonstration processing module between control unit and keyboard, the display screen.
Fig. 4 is the circuit diagram of present embodiment control unit.Fig. 5 is the circuit diagram of generation of present embodiment picture signal and Bus Interface Unit.Fig. 6 is the circuit diagram of present embodiment digital to analog conversion and filter circuit.Wherein, what control unit adopted is 51 series monolithics, and what picture signal generation and Bus Interface Unit adopted is that FPGA designs.
Claims (6)
1, display image motion response test equipment is characterized in that: comprise mainboard, keyboard, display screen;
Described mainboard comprises control unit, picture signal generation and Bus Interface Unit and memory; Described store memory contains the test pattern data; Described control unit links to each other with this memory, calls and adjust the test pattern data of described store memory storage; Described control unit generates with described picture signal by address data bus and Bus Interface Unit links to each other, and adjusted test pattern data is sent to picture signal generates and Bus Interface Unit; Described picture signal generates and Bus Interface Unit generates test image signal according to these adjusted test pattern data;
Described picture signal generation and Bus Interface Unit link to each other with display screen with described keyboard also respectively by keyboard interface and display interface.
2, display image motion response test equipment as claimed in claim 1, it is characterized in that: described mainboard also includes digital to analog conversion and filter circuit; Described picture signal generation and Bus Interface Unit link to each other with this digital to analog conversion and filter circuit, and the test image signal of exporting is converted to analog signal.
3, display image motion response test equipment as claimed in claim 1, it is characterized in that: described control unit also links to each other with serial ports; Control unit can be connected with computer by this serial ports.
4, display image motion response test equipment as claimed in claim 1 is characterized in that: the test image signal that described picture signal generates and Bus Interface Unit generates comprises that three are walked crosswise; During walking crosswise, each comprises a segment respectively; Boundary alignment before and after the segment during odd number is walked crosswise.
5, display image motion response test equipment as claimed in claim 1 is characterized in that: the test image signal that described picture signal generates and Bus Interface Unit generates comprises that seven are walked crosswise; During walking crosswise, each comprises a segment respectively; Boundary alignment before and after the segment during odd number is walked crosswise; The second, the pixel that staggers forward, backward respectively of the segment during the 6th segment the relative the 4th in walking crosswise is walked crosswise.
6, display image motion response test equipment as claimed in claim 1 is characterized in that: what described control unit adopted is single-chip microcomputer; That described picture signal generation and Bus Interface Unit adopt is FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201087816U CN201238363Y (en) | 2008-06-23 | 2008-06-23 | Display image movement response test equipment |
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| CNU2008201087816U CN201238363Y (en) | 2008-06-23 | 2008-06-23 | Display image movement response test equipment |
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| CN201238363Y true CN201238363Y (en) | 2009-05-13 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489387A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | Displayer picture switching response time test system and method |
| CN105430381A (en) * | 2015-11-27 | 2016-03-23 | 武汉精测电子技术股份有限公司 | Video signal generation device and generation method thereof |
| CN105427774A (en) * | 2015-11-30 | 2016-03-23 | 武汉精测电子技术股份有限公司 | Device and method for generating horizontal moving graph signals on basis of FPGA |
| CN105469730A (en) * | 2015-11-30 | 2016-04-06 | 武汉精测电子技术股份有限公司 | Device and method for generating slash movement graph signal based on FPGA |
| CN105489145A (en) * | 2015-11-30 | 2016-04-13 | 武汉精测电子技术股份有限公司 | Device and method capable of generating vertically-moving graphic signals based on FPGA (field-programmable gate array) |
| CN107918217A (en) * | 2018-01-03 | 2018-04-17 | 京东方科技集团股份有限公司 | The test method and test device of response time |
| CN109003569A (en) * | 2018-07-16 | 2018-12-14 | 广州视源电子科技股份有限公司 | Show determination method, apparatus, equipment and the storage medium of equipment hangover time |
| CN109599048A (en) * | 2019-01-09 | 2019-04-09 | 惠科股份有限公司 | A kind of display device and its driving method and display |
| CN111402769A (en) * | 2020-04-14 | 2020-07-10 | 深圳市华星光电半导体显示技术有限公司 | Method for judging response speed of display panel |
| CN112488994A (en) * | 2020-11-17 | 2021-03-12 | 广州视源电子科技股份有限公司 | Motion characteristic detection method, device, equipment and storage medium of display equipment |
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2008
- 2008-06-23 CN CNU2008201087816U patent/CN201238363Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489387B (en) * | 2013-09-24 | 2017-01-25 | 国家电网公司 | Displayer picture switching response time test system and method |
| CN103489387A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | Displayer picture switching response time test system and method |
| CN105430381A (en) * | 2015-11-27 | 2016-03-23 | 武汉精测电子技术股份有限公司 | Video signal generation device and generation method thereof |
| CN105489145B (en) * | 2015-11-30 | 2018-03-13 | 武汉精测电子集团股份有限公司 | The device and method for vertically moving figure signal is produced based on FPGA |
| CN105489145A (en) * | 2015-11-30 | 2016-04-13 | 武汉精测电子技术股份有限公司 | Device and method capable of generating vertically-moving graphic signals based on FPGA (field-programmable gate array) |
| CN105469730A (en) * | 2015-11-30 | 2016-04-06 | 武汉精测电子技术股份有限公司 | Device and method for generating slash movement graph signal based on FPGA |
| CN105469730B (en) * | 2015-11-30 | 2018-01-30 | 武汉精测电子技术股份有限公司 | The device and method of oblique line mobile graphics signal is produced based on FPGA |
| CN105427774B (en) * | 2015-11-30 | 2018-03-13 | 武汉精测电子技术股份有限公司 | The device and method for moving horizontally figure signal is produced based on FPGA |
| CN105427774A (en) * | 2015-11-30 | 2016-03-23 | 武汉精测电子技术股份有限公司 | Device and method for generating horizontal moving graph signals on basis of FPGA |
| CN107918217A (en) * | 2018-01-03 | 2018-04-17 | 京东方科技集团股份有限公司 | The test method and test device of response time |
| CN109003569A (en) * | 2018-07-16 | 2018-12-14 | 广州视源电子科技股份有限公司 | Show determination method, apparatus, equipment and the storage medium of equipment hangover time |
| CN109599048A (en) * | 2019-01-09 | 2019-04-09 | 惠科股份有限公司 | A kind of display device and its driving method and display |
| WO2020143463A1 (en) * | 2019-01-09 | 2020-07-16 | 惠科股份有限公司 | Display device, driving method therefor, and display |
| CN111402769A (en) * | 2020-04-14 | 2020-07-10 | 深圳市华星光电半导体显示技术有限公司 | Method for judging response speed of display panel |
| CN111402769B (en) * | 2020-04-14 | 2023-05-02 | 深圳市华星光电半导体显示技术有限公司 | Method for judging response speed of display panel |
| CN112488994A (en) * | 2020-11-17 | 2021-03-12 | 广州视源电子科技股份有限公司 | Motion characteristic detection method, device, equipment and storage medium of display equipment |
| CN112488994B (en) * | 2020-11-17 | 2024-03-01 | 广州视源电子科技股份有限公司 | Method, device, equipment and storage medium for detecting motion characteristics of display equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20150623 |
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| EXPY | Termination of patent right or utility model |