CN113267916A - Liquid crystal display screen resolution testing equipment and testing method - Google Patents
Liquid crystal display screen resolution testing equipment and testing method Download PDFInfo
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- CN113267916A CN113267916A CN202110528405.2A CN202110528405A CN113267916A CN 113267916 A CN113267916 A CN 113267916A CN 202110528405 A CN202110528405 A CN 202110528405A CN 113267916 A CN113267916 A CN 113267916A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 113
- 238000012360 testing method Methods 0.000 title claims abstract description 97
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 6
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 238000013100 final test Methods 0.000 claims description 3
- 238000011179 visual inspection Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a liquid crystal display screen resolution testing device and a liquid crystal display screen resolution testing method, and relates to the technical field of display screens. The method comprises the steps of S1, preparation, liquid crystal display screen preparation, connector preparation and computer preparation, S2, drawing, starting the computer and starting drawing software to perform drawing operation, S3, compression, picture reduction or amplification processing according to needs, compression and storage through the compression software, S4, connection and transmission, telecommunication connection between the liquid crystal display screen and the computer through the connector, and S5, display. According to the liquid crystal display screen resolution testing equipment and the liquid crystal display screen resolution testing method, the test picture is firstly reduced and enlarged according to the specification size of the liquid crystal display screen, the zoom times are recorded, and then the resolution of the liquid crystal display screen is calculated in a formula calculation mode, so that the liquid crystal display screen resolution testing equipment and the liquid crystal display screen resolution testing method are suitable for the liquid crystal display screens with different specifications and sizes to carry out resolution testing, are convenient to operate, and improve the working efficiency of resolution testing.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a liquid crystal display screen resolution testing device and a liquid crystal display screen resolution testing method.
Background
Liquid Crystal Displays (LCDs) are used in digital watches and one type of display for many portable computers. The LCD display uses two sheets of polarized material with a liquid crystal solution between them. When current is passed through the liquid, the crystals will rearrange so that light cannot pass through them. Thus, each crystal acts like a louver, both allowing light to pass through and blocking light. Liquid Crystal Display (LCD) technology information products are now developed toward the goals of being light, thin, short, and small, and it is certainly no exception to display products having a long history in the computer periphery. Under the precondition of easy carrying and transportation, the conventional display methods such as CRT video display and LED display are all limited by the factors of too large volume or huge power consumption, which cannot meet the practical requirements of users. The development of the liquid crystal display technology is just in line with the trend of the current information products, and the user can enjoy the best visual environment no matter the advantages of right-angle display, low power consumption, small volume, zero radiation and the like.
In the prior art, in the production test process of the liquid crystal display screen, the resolution of the liquid crystal display screen needs to be tested, and the liquid crystal display screen is guaranteed to be correct to a production target.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device and a method for testing the resolution of a liquid crystal display screen, which solve the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for testing the resolution of a liquid crystal display screen comprises the following steps:
s1, a preparation step, in which a liquid crystal display screen, a connector and a computer are prepared;
s2, drawing, namely starting a computer and starting drawing software to perform drawing operation;
s3, a compression step, namely, reducing or amplifying the picture according to the requirement, and then compressing and storing the picture through compression software;
s4, connection and transmission, wherein the liquid crystal display screen is in telecommunication connection with a computer through a connector;
s5, a display step, namely transmitting the compressed pictures stored in the computer to a liquid crystal display screen for display;
s6, a measuring step, namely measuring the width and height of the picture displayed on the liquid crystal display screen and measuring the width and height of the picture;
and S7, a calculation step, namely calculating the measured data through a resolution test formula to obtain a result.
Preferably, the preparing step includes: preparing a liquid crystal display screen to be tested, fixing and positioning the liquid crystal display screen through a positioning device, preparing a connector which can be in matched connection with both the liquid crystal display screen and a computer, measuring and detecting the connection state of the connector, ensuring that the connection function of the connector is intact and free of damage, if the connector is damaged, needing to be replaced in time, preparing a computer with drawing software, picture scaling software and compression software, and determining that the computer can be in matched connection with the connector.
Preferably, the drawing step includes: and starting the computer and drawing software, making a test picture through the drawing software, recording and storing width pixels of the test picture as A, and recording and storing height pixels of the test picture as B.
Preferably, the compressing step includes: opening the test picture through picture scaling software, comparing the test picture with the size of the liquid crystal display screen through visual inspection, if the test picture is larger than the liquid crystal display screen, reducing the test picture through the picture scaling software, recording the reduction factor as C, if the test picture is smaller than the liquid crystal display screen, amplifying the test picture through the picture scaling software, recording the amplification factor as C, and compressing and storing the final test picture through the compression software.
Preferably, the connection transmission includes: and the prepared connector is respectively in telecommunication connection with the liquid crystal display screen and the computer, and the test picture compressed and stored in the computer is transmitted to the liquid crystal display screen.
Preferably, the displaying step includes: decompressing and displaying the compressed test picture received on the liquid crystal display screen, and adjusting the brightness of the liquid crystal display screen to be suitable for measuring the brightness.
Preferably, the measuring step includes: the method includes the steps of measuring a test picture displayed on the liquid crystal display screen, measuring and recording the display width of the test picture as D1, measuring and recording the self width of the liquid crystal display screen as D2, measuring and recording the display height of the test picture as E1, and measuring and recording the self height of the liquid crystal display screen as E2.
Preferably, the calculating step includes: all the measured data were calculated by a resolution test formula and the results were obtained, and the formula of the width resolution X and the height resolution Y was X ═ a ═ D2/(D1 ×) and Y ═ B [ -E2/(E1 ×) respectively.
The utility model provides a liquid crystal display resolution ratio test equipment, includes liquid crystal display, connector and computer, liquid crystal display's right-hand member is provided with the telecommunications receiving port, the connector includes telecommunications connecting plate, transmission telecommunications pole and transmission data line, transmission telecommunications pole left end inlays the solid on the telecommunications receiving port of liquid crystal display right-hand member, transmission telecommunications pole right-hand member inlays the solid in telecommunications connecting plate left end, transmission data line left end inlays the solid in telecommunications connecting plate right-hand member, transmission data line right-hand member inlays the solid on the data transmission base of computer.
(III) advantageous effects
The invention provides a liquid crystal display screen resolution testing device and a liquid crystal display screen resolution testing method. The method has the following beneficial effects:
(1) according to the liquid crystal display screen resolution testing equipment and the liquid crystal display screen resolution testing method, the test picture is firstly reduced and amplified according to the specification size of the liquid crystal display screen, the zoom times are recorded, and then the resolution is calculated in a formula calculation mode, so that the liquid crystal display screen resolution testing equipment and the liquid crystal display screen resolution testing method are suitable for liquid crystal display screens of different specifications and sizes to test the resolution, are convenient to operate, and improve the working efficiency of resolution testing.
(2) The liquid crystal display screen resolution testing equipment and the liquid crystal display screen resolution testing method only use the liquid crystal display screen, the connector and the computer, so that the method is simple and practical, small in occupied resource and time-saving, and the testing efficiency of workers on the resolution of the liquid crystal display screen can be greatly improved.
Drawings
FIG. 1 is a schematic flow chart of the steps of the present invention;
FIG. 2 is a schematic diagram of the structure of the apparatus of the present invention.
In the figure: 1. a liquid crystal display screen; 21. a telecommunications connection board; 22. a transmission telecommunications pole; 23. a transmission data line; 3. a computer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a method for testing the resolution of a liquid crystal display screen comprises the following steps:
s1, a preparation step, namely, preparing a liquid crystal display screen to be tested, fixing and positioning the liquid crystal display screen through a positioning device, preparing a connector which can be matched and connected with the liquid crystal display screen and a computer, measuring and detecting the connection state of the connector, ensuring that the connection function of the connector is intact, if the connector is damaged, replacing the connector in time, preparing a computer with drawing software, picture scaling software and compression software, determining that the computer can be matched and connected with the connector, ensuring the complete operation of equipment and improving the working efficiency.
And S2, drawing, namely starting the computer and starting drawing software, making a test picture through the drawing software, recording and storing width pixels of the test picture as A, and recording and storing height pixels of the test picture as B.
S3, a compression step, namely opening the test picture through picture scaling software, comparing the test picture with the size of the liquid crystal display screen through visual inspection, if the test picture is larger than the liquid crystal display screen, reducing the test picture through the picture scaling software, and recording the reduction multiple as C; if the test picture is smaller than the liquid crystal display screen, the test picture is amplified through picture scaling software, the amplification factor is recorded as C, the final test picture is compressed and stored through the compression software, the test picture is firstly reduced and amplified according to the specification size of the liquid crystal display screen, the scaling factor is recorded, and then the resolution is calculated through a formula calculation mode, so that the method is suitable for the liquid crystal display screens with different specifications and sizes to carry out resolution testing, the operation is convenient, and the working efficiency of the resolution testing is improved.
And S4, connection and transmission, wherein the prepared connector is respectively in telecommunication connection with the liquid crystal display screen and the computer, the test pictures compressed and stored in the computer are transmitted to the liquid crystal display screen, and the connectors used by the liquid crystal display screens with different specifications and sizes are correspondingly replaced to ensure that the connection between the liquid crystal display screen and the computer is correct, so that the working efficiency of workers is improved.
And S5, a display step, namely decompressing and displaying the compressed test picture received on the liquid crystal display screen, and adjusting the brightness of the liquid crystal display screen to be suitable for the measured brightness.
And S6, measuring the test picture displayed on the liquid crystal display screen, measuring and recording the display width of the test picture as D1, measuring and recording the self width of the liquid crystal display screen as D2, measuring and recording the display height of the test picture as E1, and measuring and recording the self height of the liquid crystal display screen as E2.
And S7, calculating all measured data through a resolution test formula to obtain a result, wherein the calculation operation amount is small, the calculation is convenient for workers to operate and calculate, and the test efficiency of the workers is improved, wherein the width resolution X and the height resolution Y are respectively X-A [ D2/(D1) C ], and Y-B [ E2/(E1C) ].
Referring to fig. 2, the present invention provides a technical solution: a liquid crystal display resolution test device comprises a liquid crystal display screen 1, a connector and a computer 3, wherein the right end of the liquid crystal display screen 1 is provided with a telecommunication receiving port, the connector comprises a telecommunication connecting plate 21, a transmission telecommunication rod 22 and a transmission data wire 23, the left end of the transmission telecommunication rod 22 is embedded and fixed on the telecommunication receiving port at the right end of the liquid crystal display screen 1, the right end of the transmission telecommunication rod 22 is embedded and fixed at the left end of the telecommunication connecting plate 21, the left end of the transmission data wire 23 is embedded and fixed at the right end of the telecommunication connecting plate 21, the right end of the transmission data wire 23 is embedded and fixed on a data transmission base of the computer 3, the drawing step and the compression step are implemented by the computer 3 during work, then the telecommunication connecting plate 21 is fixedly connected with the data transmission base of the computer 3 through the transmission data wire 23, and then the telecommunication connecting plate 21 is in telecommunication connection with the liquid crystal display screen through the transmission telecommunication rod 22, and then, the operation of the connection transmission and display steps can be continued, and finally, the operation of the measurement step and the calculation step is carried out after the operation is finished.
The device and the method for testing the resolution of the liquid crystal display screen have the advantages that the test picture is firstly reduced and enlarged according to the specification size of the liquid crystal display screen, the zoom times are recorded, and then the resolution is calculated in a formula calculation mode, so that the device and the method are suitable for testing the resolution of the liquid crystal display screens with different specifications, are convenient to operate and improve the working efficiency of resolution testing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A method for testing the resolution of a liquid crystal display screen, comprising:
s1, a preparation step, in which a liquid crystal display screen, a connector and a computer are prepared;
s2, drawing, namely starting a computer and starting drawing software to perform drawing operation;
s3, a compression step, namely, reducing or amplifying the picture according to the requirement, and then compressing and storing the picture through compression software;
s4, connection and transmission, wherein the liquid crystal display screen is in telecommunication connection with a computer through a connector;
s5, a display step, namely transmitting the compressed pictures stored in the computer to a liquid crystal display screen for display;
s6, a measuring step, namely measuring the width and height of the picture displayed on the liquid crystal display screen and measuring the width and height of the picture;
and S7, a calculation step, namely calculating the measured data through a resolution test formula to obtain a result.
2. The method for testing the resolution of a liquid crystal display panel according to claim 1, wherein said preparing step comprises: preparing a liquid crystal display screen to be tested, fixing and positioning the liquid crystal display screen through a positioning device, preparing a connector which can be in matched connection with both the liquid crystal display screen and a computer, measuring and detecting the connection state of the connector, ensuring that the connection function of the connector is intact and free of damage, if the connector is damaged, needing to be replaced in time, preparing a computer with drawing software, picture scaling software and compression software, and determining that the computer can be in matched connection with the connector.
3. The method for testing the resolution of a liquid crystal display screen according to claim 1, wherein the drawing step comprises: and starting the computer and drawing software, making a test picture through the drawing software, recording and storing width pixels of the test picture as A, and recording and storing height pixels of the test picture as B.
4. The method for testing the resolution of the liquid crystal display screen according to claim 1, wherein the compressing step comprises: opening the test picture through picture scaling software, comparing the test picture with the size of the liquid crystal display screen through visual inspection, if the test picture is larger than the liquid crystal display screen, reducing the test picture through the picture scaling software, recording the reduction factor as C, if the test picture is smaller than the liquid crystal display screen, amplifying the test picture through the picture scaling software, recording the amplification factor as C, and compressing and storing the final test picture through the compression software.
5. The method for testing the resolution of a liquid crystal display screen according to claim 1, wherein the connecting transmission comprises: and the prepared connector is respectively in telecommunication connection with the liquid crystal display screen and the computer, and the test picture compressed and stored in the computer is transmitted to the liquid crystal display screen.
6. The method for testing the resolution of the liquid crystal display screen according to claim 1, wherein the displaying step comprises: decompressing and displaying the compressed test picture received on the liquid crystal display screen, and adjusting the brightness of the liquid crystal display screen to be suitable for measuring the brightness.
7. The method for testing the resolution of a liquid crystal display panel according to claim 1, wherein the measuring step comprises: the method includes the steps of measuring a test picture displayed on the liquid crystal display screen, measuring and recording the display width of the test picture as D1, measuring and recording the self width of the liquid crystal display screen as D2, measuring and recording the display height of the test picture as E1, and measuring and recording the self height of the liquid crystal display screen as E2.
8. The method for testing the resolution of a liquid crystal display panel according to claim 1, wherein the calculating step comprises: all the measured data were calculated by a resolution test formula and the results were obtained, and the formula of the width resolution X and the height resolution Y was X ═ a ═ D2/(D1 ×) and Y ═ B [ -E2/(E1 ×) respectively.
9. The utility model provides a liquid crystal display resolution ratio test equipment, its characterized in that, includes liquid crystal display (1), connector and computer (3), the right-hand member of liquid crystal display (1) is provided with the telecommunications receiving port, the connector includes telecommunications connecting plate (21), transmission telecommunications pole (22) and transmission data line (23), transmission telecommunications pole (22) left end is inlayed on the telecommunications receiving port of liquid crystal display (1) right-hand member, transmission telecommunications pole (22) right-hand member is inlayed in telecommunications connecting plate (21) left end, transmission data line (23) left end is inlayed in telecommunications connecting plate (21) right-hand member, transmission data line (23) right-hand member is inlayed on the data transmission base of computer (3).
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| CN202110528405.2A CN113267916A (en) | 2021-05-14 | 2021-05-14 | Liquid crystal display screen resolution testing equipment and testing method |
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| CN202110528405.2A CN113267916A (en) | 2021-05-14 | 2021-05-14 | Liquid crystal display screen resolution testing equipment and testing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116668671A (en) * | 2023-08-01 | 2023-08-29 | 无锡美科微电子技术有限公司 | Multi-screen control apparatus, method, storage medium, and computer program product |
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| US6028442A (en) * | 1996-04-24 | 2000-02-22 | Samsung Electronics, Co., Ltd. | Test circuit for identifying open and short circuit defects in a liquid crystal display and method thereof |
| CN101369397A (en) * | 2007-08-14 | 2009-02-18 | 冠捷投资有限公司 | Display equipment test system and method |
| CN102543045A (en) * | 2010-12-24 | 2012-07-04 | 纬创资通股份有限公司 | Method and related device for displaying picture |
| CN104155082A (en) * | 2013-05-14 | 2014-11-19 | 比亚迪股份有限公司 | Liquid crystal display resolution test method |
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2021
- 2021-05-14 CN CN202110528405.2A patent/CN113267916A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6028442A (en) * | 1996-04-24 | 2000-02-22 | Samsung Electronics, Co., Ltd. | Test circuit for identifying open and short circuit defects in a liquid crystal display and method thereof |
| CN101369397A (en) * | 2007-08-14 | 2009-02-18 | 冠捷投资有限公司 | Display equipment test system and method |
| CN102543045A (en) * | 2010-12-24 | 2012-07-04 | 纬创资通股份有限公司 | Method and related device for displaying picture |
| CN104155082A (en) * | 2013-05-14 | 2014-11-19 | 比亚迪股份有限公司 | Liquid crystal display resolution test method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116668671A (en) * | 2023-08-01 | 2023-08-29 | 无锡美科微电子技术有限公司 | Multi-screen control apparatus, method, storage medium, and computer program product |
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Application publication date: 20210817 |