CN104155082A - Liquid crystal display resolution test method - Google Patents
Liquid crystal display resolution test method Download PDFInfo
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- CN104155082A CN104155082A CN201310177483.8A CN201310177483A CN104155082A CN 104155082 A CN104155082 A CN 104155082A CN 201310177483 A CN201310177483 A CN 201310177483A CN 104155082 A CN104155082 A CN 104155082A
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Abstract
The invention discloses a liquid crystal display resolution test method. The test method includes: drawing a test picture with a width of a pixel and a height of b pixel; providing a base; connecting a liquid crystal screen to be tested with the base, and displaying the test picture on the liquid crystal screen in a non-zooming manner; testing the actual width W of the liquid crystal screen to be tested, the display width w of the test picture, the actual height H of the liquid crystal display screen to be tested and the display height h of the test picture; and calculating the resolution of the liquid crystal display screen to be tested: width resolution A=a*(W/w), and height resolution B=b*(H/h). The test method is simple and practical, occupies small space, is low in equipment cost, and saves time, thereby greatly reducing the cost of testing liquid crystal resolution.
Description
Technical field
The invention belongs to thermometrically technical field, be specifically related to a kind of LCDs resolution test method.
Background technology
Along with the development in epoch, liquid crystal has replaced the CRT in last century completely, more and more press close to people's life, industry is also more and more to the measurement of liquid crystal so, thereby existing measuring technique is to connect liquid crystal with expensive instrument to measure the pixel that transverse and longitudinal shows and reach the object of Measurement Resolution substantially, have and take up an area greatly, complicated operation, the shortcoming that testing cost is high.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or at least provides a kind of useful business to select.For this reason, the object of the invention is to propose a kind of simple and easy to do, lower-cost LCDs resolution test method.
According to the LCDs resolution test method of the embodiment of the present invention, comprising: A. utilizes mapping software to draw the test picture of known dimensions, note width is a pixel and is highly b pixel; B., base is provided, can be by image in liquid crystal display screen display after described base connecting fluid crystal display screen; C. LCDs to be measured is connected with described base, described test picture is not shown in described LCDs convergent-divergent; D. test the true altitude H of the developed width W of described LCDs to be measured, the display width w of described test picture, described LCDs to be measured and the demonstration of described test picture height h; And the resolution of the described LCDs to be measured of E. calculating is: width resolution A=a* (W/w), height resolution B=b* (H/h).
In one embodiment of the invention, the size of described test picture and described LCDs resolution to be measured match, and, do not exceed the border of described LCDs to be measured described in described test picture carries out while demonstration that is convergent-divergent.
In one embodiment of the invention, described test picture is of a size of 128 pixel × 128 pixels.
In one embodiment of the invention, described test picture is pure white picture.
In one embodiment of the invention, require to select to adopt W, w described in common gage or vernier caliper measurement, H and h according to measuring accuracy.
In one embodiment of the invention, described base comprises the memory device with USB interface or SD draw-in groove, tests picture described in described memory device, stores.
In one embodiment of the invention, in the time that described test picture carries out ground Zoom display with the scaling of 1:k in described LCDs, the resolution of described LCDs to be measured is: width resolution A=k*a* (W/w), height resolution B=k*b* (H/h).
This method of testing is simple and practical, accounts for how many, and equipment cost is low, saves time, thereby reduces greatly the testing cost of liquid crystal resolution.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the process flow diagram of the LCDs resolution test method of the embodiment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of instructions such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
The method of testing that the invention provides a kind of simple and convenient solves the resolution measurement problem of LCDs.As shown in Figure 1, according to the LCDs resolution test method of the embodiment of the present invention, comprising:
A. utilize mapping software to draw the test picture of known dimensions, note width is a pixel and is highly b pixel.
Particularly, the test picture of a feature size is drawn by the mapping softwares such as available photoshop, auto CAD, coreldraw, and records its Width pixel and short transverse pixel.
In one embodiment of the invention, the size of test picture should match with LCDs resolution to be measured,, need to first estimate LCDs resolution to be measured and as a reference, then choose suitable size, as 64x64,128x128,256x256,512x512,1024x1024 etc.To ensure that test picture carries out not exceeding while demonstration the border of LCDs to be measured in LCDs to be measured convergent-divergent.
In one embodiment of the invention, consider the common-use size size of current touch-screen display, select 128x128, substantially can meet photo resolution and be less than screen resolution, and that the picture of 128x128 size is also unlikely to is too little, be conducive to make measurement result more accurate.It should be noted that, although above-mentioned size numerical value is high wide equating, can be also the high wide form not waiting in practical application, is only the convenience as example herein, and can not be considered as restriction of the present invention.
In one embodiment of the invention, the color of test picture is not particularly limited, as red, yellow, blue, green, blue or green, blue or other multicolour patterns all can, preferentially select pure white picture, can strengthen contrast, minimizing measuring error.
B., base is provided, can be by image in liquid crystal display screen display after base connecting fluid crystal display screen.
For convenient test, can make specially one and can memory image connect various liquid crystal and the normal base showing: this base comprises the memory device with USB interface and SD draw-in groove, makes the LCDs of distinct interface can connect this base and show the picture on memory device with the connector of various interface.When test, LCDs is directly put on base, base can be input to picture automatically also with regard to display screen demonstration.
It should be noted that, the form of this base is not limited, as long as can realize corresponding function.
C. LCDs to be measured is connected with base, will tests picture and not show in LCDs convergent-divergent.
Carrying out not Zoom display is the simplest the most basic method of testing, but also can adopt Zoom display in some cases, introduces separately later.
D. test the true altitude H of the developed width W of LCDs to be measured, the display width w of test picture, LCDs to be measured and the demonstration height h of test picture.
In concrete practice, can require to select to adopt common gage or vernier caliper measurement W, w, H and h according to measuring accuracy.For example, not high when accuracy requirement, can use common gage, precision to 0.1 centimetre conventionally, when higher to accuracy requirement, can be used the further precision that promote such as vernier caliper.
E. the resolution of calculating LCDs to be measured is: width resolution A=a* (W/w), height resolution B=b* (H/h).
In the process of test, sometimes also can run into the situation of filling up whole LCDs when test picture carries out without Zoom display, this explanation test picture true resolution may be greater than the true resolution of LCDs.Now need to change the test picture of smaller szie, such as the picture that is 128x128 by resolution is changed to the picture that resolution is 64x64.On the contrary, sometimes also can run into the situation that only accounts for the very little part of whole LCDs when test picture carries out without Zoom display, this explanation test picture true resolution may be much smaller than the true resolution of LCDs.Now need to change larger sized test picture.Usually, test picture probably accounts for 1/6 to 2/3 of whole LCDs to be measured and is advisable.
Except changing test picture, can also take test picture to carry out the way of Zoom display in LCDs.In the time that test picture carries out ground Zoom display with the scaling of 1:k in LCDs, other steps are constant.At this time the formula of the last resolution of calculating LCDs to be measured is modified to: width resolution A=k*a* (W/w), height resolution B=k*b* (H/h).
In sum, this method of testing is simple and practical, accounts for how many, and equipment cost is low, saves time, thereby reduces greatly the testing cost of liquid crystal resolution.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, amendment, replacement and modification.
Claims (7)
1. a LCDs resolution test method, is characterized in that, comprising:
A. utilize mapping software to draw the test picture of known dimensions, note width is a pixel and is highly b pixel;
B., base is provided, can be by image in liquid crystal display screen display after described base connecting fluid crystal display screen;
C. LCDs to be measured is connected with described base, described test picture is not shown in described LCDs convergent-divergent;
D. test the true altitude H of the developed width W of described LCDs to be measured, the display width w of described test picture, described LCDs to be measured and the demonstration of described test picture height h; And
E. the resolution of calculating described LCDs to be measured is: width resolution A=a* (W/w), height resolution B=b* (H/h).
2. LCDs resolution test method as claimed in claim 1, it is characterized in that, the size of described test picture and described LCDs resolution to be measured match, and, do not exceed the border of described LCDs to be measured described in described test picture carries out while demonstration that is convergent-divergent.
3. LCDs resolution test method as claimed in claim 1, is characterized in that, described test picture is of a size of 128 pixel × 128 pixels.
4. LCDs resolution test method as claimed in claim 1, is characterized in that, described test picture is pure white picture.
5. LCDs resolution test method as claimed in claim 1, is characterized in that, requires to select to adopt W, w described in common gage or vernier caliper measurement, H and h according to measuring accuracy.
6. LCDs resolution test method as claimed in claim 1, is characterized in that, described base comprises the memory device with USB interface or SD draw-in groove, tests picture described in described memory device, stores.
7. LCDs resolution test method as claimed in claim 1, it is characterized in that, in the time that described test picture carries out ground Zoom display with the scaling of 1:k in described LCDs, the resolution of described LCDs to be measured is: width resolution A=k*a* (W/w), height resolution B=k*b* (H/h).
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| CN201310177483.8A CN104155082A (en) | 2013-05-14 | 2013-05-14 | Liquid crystal display resolution test method |
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| CN201310177483.8A CN104155082A (en) | 2013-05-14 | 2013-05-14 | Liquid crystal display resolution test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108073485A (en) * | 2017-12-22 | 2018-05-25 | 珠海市君天电子科技有限公司 | Terminal screen fluency test method, device and equipment |
| CN113267916A (en) * | 2021-05-14 | 2021-08-17 | 深圳同兴达科技股份有限公司 | Liquid crystal display screen resolution testing equipment and testing method |
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| JP2000066177A (en) * | 1998-08-20 | 2000-03-03 | Matsushita Electric Ind Co Ltd | Method for evaluating light absorption of polymer dispersed liquid crystal, liquid crystal display device and liquid crystal projector |
| CN1707238A (en) * | 2004-06-09 | 2005-12-14 | 上海迪比特实业有限公司 | Method for testing resolution ratio of camera head |
| CN101369397A (en) * | 2007-08-14 | 2009-02-18 | 冠捷投资有限公司 | Display equipment test system and method |
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2013
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Patent Citations (4)
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| JPH0228530A (en) * | 1988-07-19 | 1990-01-30 | Ricoh Co Ltd | Visual angle characteristic measuring device for display element |
| JP2000066177A (en) * | 1998-08-20 | 2000-03-03 | Matsushita Electric Ind Co Ltd | Method for evaluating light absorption of polymer dispersed liquid crystal, liquid crystal display device and liquid crystal projector |
| CN1707238A (en) * | 2004-06-09 | 2005-12-14 | 上海迪比特实业有限公司 | Method for testing resolution ratio of camera head |
| CN101369397A (en) * | 2007-08-14 | 2009-02-18 | 冠捷投资有限公司 | Display equipment test system and method |
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| 吴启海等: "《中华人民共和国国家标准GB/T 19953-2005》", 10 October 2005 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108073485A (en) * | 2017-12-22 | 2018-05-25 | 珠海市君天电子科技有限公司 | Terminal screen fluency test method, device and equipment |
| CN113267916A (en) * | 2021-05-14 | 2021-08-17 | 深圳同兴达科技股份有限公司 | Liquid crystal display screen resolution testing equipment and testing method |
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Application publication date: 20141119 |