CN109917571B - Photoelectric parameter detection interface system of liquid crystal display device - Google Patents
Photoelectric parameter detection interface system of liquid crystal display device Download PDFInfo
- Publication number
- CN109917571B CN109917571B CN201910319478.3A CN201910319478A CN109917571B CN 109917571 B CN109917571 B CN 109917571B CN 201910319478 A CN201910319478 A CN 201910319478A CN 109917571 B CN109917571 B CN 109917571B
- Authority
- CN
- China
- Prior art keywords
- test unit
- display device
- liquid crystal
- brightness
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 84
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 226
- 230000004044 response Effects 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 12
- 230000000007 visual effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 238000013500 data storage Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 238000002834 transmittance Methods 0.000 claims description 4
- 241001270131 Agaricus moelleri Species 0.000 claims description 3
- 239000004988 Nematic liquid crystal Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004891 communication 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
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a photoelectric parameter detection interface system of a liquid crystal display device, which comprises an interface device and a test software system; the test software system is arranged on the control computer and is electrically connected with the interface device; the interface device is used for detecting photoelectric parameters of the liquid crystal display device; the test software system tests parameters of the liquid crystal display device. The invention can be connected with any kind of tested liquid crystal display device and required driving power supply, driving signal source and peripheral detection equipment, and solves the problems of purchasing and preparing various driving power supply, driving signal source and other equipment and the trouble of repeatedly connecting lines due to different types and models.
Description
Technical Field
The invention relates to detection of a liquid crystal display device, in particular to a photoelectric parameter detection interface system of the liquid crystal display device.
Background
At present, according to the inspection standard requirement of GB/T18910.61 photoelectric parameter of liquid crystal display device test method, the liquid crystal display device needs to detect 14 photoelectric parameters, any parameters need to be detected by driving signal sources, and the types of the liquid crystal display devices are different, so that a large number of various types of liquid crystal screen signal sources need to be prepared by a product quality inspection mechanism, and great inconvenience is brought to inspection staff in the inspection process of repeatedly replacing the driving signal sources and performing complicated connection due to the different types and types.
Disclosure of Invention
The invention aims at the problems and provides a photoelectric parameter detection interface system of a liquid crystal display device.
The technical scheme adopted by the invention is as follows: an interface system for detecting photoelectric parameters of a liquid crystal display device comprises an interface device and a test software system; the test software system is arranged on the control computer and is electrically connected with the interface device; the interface device is used for detecting photoelectric parameters of the liquid crystal display device; the test software system tests parameters of the liquid crystal display device.
Further, the interface device comprises an FPGA or ARM universal board, a signal conversion board, a test board and an LCD interface board; the LCD interface board comprises a first LCD interface, a second LCD interface and a third LCD interface; the FPGA or ARM universal board is connected with the test board through the signal conversion board; the test board is respectively connected with the first LCD interface, the second LCD interface and the third LCD interface;
The first LCD interface is used for connecting a mobile phone screen and a flat panel screen;
The second LCD interface is used for connecting a conventional liquid crystal screen, a conventional vehicle-mounted screen and a conventional industrial liquid crystal screen;
the third LCD interface is used for connecting a small-size black-and-white small screen and an oled screen;
the FPGA of the FPGA or the ARM universal board generates RGB three primary color signals to drive an RGB interface type liquid crystal screen, and the RGB signals can be converted into MIPI signals through an RGB conversion MIPI signal circuit board to drive a mobile phone liquid crystal screen and a panel type liquid crystal screen;
ARM in FPGA or ARM omnipotent board drives small-size black and white small screen, oled screen.
Furthermore, the test board mainly comprises an FPGA chip, an FPGA configuration chip, a JTAG download slot, a USB/SD controller, an SD card slot, a USB interface, a burning slot, an SDRAM, a liquid crystal picture data storage FLASH, a liquid crystal picture data transfer RAM, an RS232 interface, a key, a current-voltage AD conversion chip, a power input and protection circuit; the FPGA chip is respectively connected with the FPGA configuration chip, the JTAG download slot, the USB/SD controller, the SD card slot, the USB interface, the burning slot, the SDRAM, the liquid crystal picture data storage FLASH, the liquid crystal picture data transfer RAM, the RS232 interface, the key, the current and voltage AD conversion chip, the power input and the protection circuit.
Further, the test software system comprises a control unit, a display unit, a brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross-talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit; the control unit is respectively connected with the display unit, the brightness and brightness uniformity test unit, the preheating characteristic test unit, the response time test unit, the flicker test unit, the brightness and contrast test unit, the visual angle range test unit, the transmissivity measurement test unit, the specular reflection coefficient test unit of the surface of the effective display area, the white field chroma and chroma uniformity test unit, the color reproducibility test unit, the display resolution test unit, the cross-talk test unit, the threshold voltage and saturation voltage test unit and the power consumption test unit.
Still further, the control unit: the device is used for comprehensively controlling a display unit, a brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit;
And a display unit: the system comprises a display brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross-talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit;
Brightness and brightness uniformity unit: measuring brightness of the display device and uniformity of brightness of the surface of the display device with the built-in backlight system;
preheating characteristic test unit: measuring the time required for the brightness of the tested display device to reach the stability requirement in the initial stage of starting up;
Response time test unit: the method comprises the steps of switching on time, switching off time, rising time, falling time and gray scale response time; for measuring the time required for the display device to change from light to dark or from dark to light after application of the driving voltage, the gray scale response time is measured as the response time of the display device to change between two gray scales;
flicker test unit: measuring the display brightness change condition of the multi-path or matrix display device;
brightness and contrast test unit: detecting the brightness contrast of the display device;
Viewing angle range test unit: measuring the angle corresponding to the maximum contrast, i.e. the view peak; simultaneously measuring the view angle range of the display screen, including the view angle range in the horizontal and vertical directions, namely that the contrast value is larger than the limit value;
Transmittance test unit: the method is suitable for the liquid crystal display device without the backlight source, and is used for measuring the transmissivity of the liquid crystal display device in the visible light range;
and a specular reflection coefficient test unit for an effective display area surface: measuring a specular reflectance of an effective display area of the display device caused by incident light from outside the display device;
white field chroma and chroma uniformity test unit: measuring white field chromaticity and chromaticity uniformity of a liquid crystal display device with a built-in backlight only for a matrix display device, and only for the matrix display device;
Color reproducibility test unit: for matrix display devices only, the color reproducibility of the display device is expressed in terms of gamut values;
Display resolution test unit: measuring the pixel resolution of the display device only for high resolution matrix display devices;
cross talk test unit: measuring the degree of cross talk of the liquid crystal display device in a graphic display state;
threshold voltage and saturation voltage test unit: the method is suitable for a twisted nematic liquid crystal display device and is used for measuring the threshold voltage and the saturation voltage of the liquid crystal display device;
And a power consumption testing unit: measuring power consumption and current of the display device; liquid crystal display devices typically include a liquid crystal display, drive circuitry, analog circuitry, and circuitry for an accompanying backlight system.
The invention has the advantages that:
The photoelectric parameter detection interface system of the liquid crystal display device is a connection center between the detected liquid crystal display device and a driving power supply, a driving signal source and detection equipment, is suitable for detecting liquid crystal display devices of various types and models, does not need to purchase and prepare more other driving power supplies and driving signal sources according to different types and models, solves the trouble of repeated connection lines due to different detection liquid crystal display devices for a detection mechanism, and brings great convenience for detection personnel.
The invention can be connected with any kind of tested liquid crystal display device and required driving power supply, driving signal source and peripheral detection equipment, and solves the problems of purchasing and preparing various driving power supply, driving signal source and other equipment and the trouble of repeatedly connecting lines due to different types and models; the data acquisition and processing system of the interface circuit transmits the tested optical and electrical characteristic data to a computer for display, and a test report of the photoelectric parameters can be formed at one time; the interfaces of various screens can be provided, so that the power supply driving and signal driving of different types of screens can be met; the RGB signals can be converted into mobile phone MIPI signals.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a block diagram of a system for detecting electro-optical parameters of a liquid crystal display device according to the present invention;
FIG. 2 shows an interface device of an interface system for detecting photoelectric parameters of a liquid crystal display device according to the present invention
Is a schematic diagram of (a);
FIG. 3 shows a test board of an interface system for detecting electro-optical parameters of a liquid crystal display device
A structural block diagram;
FIG. 4 shows a test software of an interface system for detecting electro-optical parameters of a liquid crystal display device according to the present invention
A block diagram of the system.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, as shown in fig. 1, a system for detecting photoelectric parameters of a liquid crystal display device includes an interface device and a test software system; the test software system is arranged on the control computer and is electrically connected with the interface device; the interface device is used for detecting photoelectric parameters of the liquid crystal display device; the test software system tests parameters of the liquid crystal display device. The interface device is connected with the control computer through a communication interface.
Referring to fig. 2, as shown in fig. 2, the interface device includes an FPGA or ARM universal board, a signal conversion board, a test board, and an LCD interface board; the LCD interface board comprises a first LCD interface, a second LCD interface and a third LCD interface; the FPGA or ARM universal board is connected with the test board through the signal conversion board; the test board is respectively connected with the first LCD interface, the second LCD interface and the third LCD interface;
The first LCD interface is used for connecting a mobile phone screen and a flat panel screen;
The second LCD interface is used for connecting a conventional liquid crystal screen, a conventional vehicle-mounted screen and a conventional industrial liquid crystal screen;
the third LCD interface is used for connecting a small-size black-and-white small screen and an oled screen;
the FPGA of the FPGA or the ARM universal board generates RGB three primary color signals to drive an RGB interface type liquid crystal screen, and the RGB signals can be converted into MIPI signals through an RGB conversion MIPI signal circuit board to drive a mobile phone liquid crystal screen and a panel type liquid crystal screen;
ARM in FPGA or ARM omnipotent board drives small-size black and white small screen, oled screen.
Referring to fig. 3, as shown in fig. 3, the test board mainly includes an FPGA chip, an FPGA configuration chip, a JTAG download slot, a USB/SD controller, an SD card slot, a USB interface, a burn slot, an SDRAM, a liquid crystal picture data storage FLASH, a liquid crystal picture data transfer RAM, an RS232 interface, a key, a current-voltage AD conversion chip, a power input and protection circuit; the FPGA chip is respectively connected with the FPGA configuration chip, the JTAG download slot, the USB/SD controller, the SD card slot, the USB interface, the burning slot, the SDRAM, the liquid crystal picture data storage FLASH, the liquid crystal picture data transfer RAM, the RS232 interface, the key, the current and voltage AD conversion chip, the power input and the protection circuit.
Referring to fig. 4, the test software system includes a control unit, a display unit, a luminance and luminance uniformity test unit, a warm-up characteristic test unit, a response time test unit, a flicker test unit, a luminance and contrast test unit, a viewing angle range test unit, a transmittance measurement test unit, a specular reflection coefficient test unit, a whiteness and chromaticity uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross-talk test unit, a threshold voltage and saturation voltage test unit, and a power consumption test unit, of the surface of the effective display area, as shown in fig. 4; the control unit is respectively connected with the display unit, the brightness and brightness uniformity test unit, the preheating characteristic test unit, the response time test unit, the flicker test unit, the brightness and contrast test unit, the visual angle range test unit, the transmissivity measurement test unit, the specular reflection coefficient test unit of the surface of the effective display area, the white field chroma and chroma uniformity test unit, the color reproducibility test unit, the display resolution test unit, the cross-talk test unit, the threshold voltage and saturation voltage test unit and the power consumption test unit.
The control unit: the device is used for comprehensively controlling a display unit, a brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit;
And a display unit: the system comprises a display brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross-talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit;
Brightness and brightness uniformity unit: measuring brightness of the display device and uniformity of brightness of the surface of the display device with the built-in backlight system;
preheating characteristic test unit: measuring the time required for the brightness of the tested display device to reach the stability requirement in the initial stage of starting up;
Response time test unit: the method comprises the steps of switching on time, switching off time, rising time, falling time and gray scale response time; for measuring the time required for the display device to change from light to dark or from dark to light after application of the driving voltage, the gray scale response time is measured as the response time of the display device to change between two gray scales;
flicker test unit: measuring the display brightness change condition of the multi-path or matrix display device;
brightness and contrast test unit: detecting the brightness contrast of the display device;
Viewing angle range test unit: measuring the angle corresponding to the maximum contrast, i.e. the view peak; simultaneously measuring the view angle range of the display screen, including the view angle range in the horizontal and vertical directions, namely that the contrast value is larger than the limit value;
Transmittance test unit: the method is suitable for the liquid crystal display device without the backlight source, and is used for measuring the transmissivity of the liquid crystal display device in the visible light range;
and a specular reflection coefficient test unit for an effective display area surface: measuring a specular reflectance of an effective display area of the display device caused by incident light from outside the display device;
white field chroma and chroma uniformity test unit: measuring white field chromaticity and chromaticity uniformity of a liquid crystal display device with a built-in backlight only for a matrix display device, and only for the matrix display device;
Color reproducibility test unit: for matrix display devices only, the color reproducibility of the display device is expressed in terms of gamut values;
Display resolution test unit: measuring the pixel resolution of the display device only for high resolution matrix display devices;
cross talk test unit: measuring the degree of cross talk of the liquid crystal display device in a graphic display state;
threshold voltage and saturation voltage test unit: the method is suitable for a twisted nematic liquid crystal display device and is used for measuring the threshold voltage and the saturation voltage of the liquid crystal display device;
And a power consumption testing unit: measuring power consumption and current of the display device; liquid crystal display devices typically include a liquid crystal display, drive circuitry, analog circuitry, and circuitry for an accompanying backlight system.
The photoelectric parameter detection interface system of the liquid crystal display device is a connection center between the detected liquid crystal display device and a driving power supply, a driving signal source and detection equipment, is suitable for detecting liquid crystal display devices of various types and models, does not need to purchase and prepare more other driving power supplies and driving signal sources according to different types and models, solves the trouble of repeated connection lines due to different detection liquid crystal display devices for a detection mechanism, and brings great convenience for detection personnel.
The invention can be connected with any kind of tested liquid crystal display device and required driving power supply, driving signal source and peripheral detection equipment, and solves the problems of purchasing and preparing various driving power supply, driving signal source and other equipment and the trouble of repeatedly connecting lines due to different types and models; the data acquisition and processing system of the interface circuit transmits the tested optical and electrical characteristic data to a computer for display, and a test report of the photoelectric parameters can be formed at one time; the interfaces of various screens can be provided, so that the power supply driving and signal driving of different types of screens can be met; the RGB signals can be converted into mobile phone MIPI signals.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (1)
1. The photoelectric parameter detection interface system of the liquid crystal display device is characterized by comprising an interface device and a test software system; the test software system is arranged on the control computer, and the control computer is electrically connected with the interface device; the interface device is used for detecting photoelectric parameters of the liquid crystal display device; the test software system tests parameters of the liquid crystal display device;
The interface device comprises an FPGA or ARM universal board, a signal conversion board, a test board and an LCD interface board; the LCD interface board comprises a first LCD interface, a second LCD interface and a third LCD interface; the FPGA or ARM universal board is connected with the test board through the signal conversion board; the test board is respectively connected with the first LCD interface, the second LCD interface and the third LCD interface;
The first LCD interface is used for connecting a mobile phone screen and a flat panel screen;
The second LCD interface is used for connecting a conventional liquid crystal screen, a conventional vehicle-mounted screen and a conventional industrial liquid crystal screen;
the third LCD interface is used for connecting a small-size black-and-white small screen and an oled screen;
the FPGA of the FPGA or the ARM universal board generates RGB three primary color signals to drive an RGB interface type liquid crystal screen, and the RGB signals can be converted into MIPI signals through an RGB conversion MIPI signal circuit board to drive a mobile phone liquid crystal screen and a panel type liquid crystal screen;
ARM in FPGA or ARM omnipotent board drives the small-size black and white small screen, oled screen;
The test board mainly comprises an FPGA chip, an FPGA configuration chip, a JTAG download slot, a USB/SD controller, an SD card slot, a USB interface, a burning slot, SDRAM, a liquid crystal picture data storage FLASH, a liquid crystal picture data transfer RAM, an RS232 interface, a key, a current-voltage AD conversion chip, a power input and a protection circuit; the FPGA chip is respectively connected with the FPGA configuration chip, the JTAG download slot, the USB/SD controller, the SD card slot, the USB interface, the burning slot, the SDRAM, the liquid crystal picture data storage FLASH, the liquid crystal picture data transfer RAM, the RS232 interface, the key, the current-voltage AD conversion chip, the power input and the protection circuit;
The test software system comprises a control unit, a display unit, a brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit; the control unit is respectively connected with the display unit, the brightness and brightness uniformity test unit, the preheating characteristic test unit, the response time test unit, the flicker test unit, the brightness and contrast test unit, the visual angle range test unit, the transmissivity measurement test unit, the specular reflection coefficient test unit of the surface of the effective display area, the white field chroma and chroma uniformity test unit, the color reproducibility test unit, the display resolution test unit, the cross-talk test unit, the threshold voltage and saturation voltage test unit and the power consumption test unit;
The control unit: the device is used for comprehensively controlling a display unit, a brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit;
And a display unit: the system comprises a display brightness and brightness uniformity test unit, a preheating characteristic test unit, a response time test unit, a flicker test unit, a brightness and contrast test unit, a visual angle range test unit, a transmissivity measurement test unit, a specular reflection coefficient test unit of the surface of an effective display area, a white field chroma and chroma uniformity test unit, a color reproducibility test unit, a display resolution test unit, a cross-talk test unit, a threshold voltage and saturation voltage test unit and a power consumption test unit;
Brightness and brightness uniformity unit: measuring brightness of the display device and uniformity of brightness of the surface of the display device with the built-in backlight system;
preheating characteristic test unit: measuring the time required for the brightness of the tested display device to reach the stability requirement in the initial stage of starting up;
Response time test unit: the method comprises the steps of switching on time, switching off time, rising time, falling time and gray scale response time; for measuring the time required for the display device to change from light to dark or from dark to light after application of the driving voltage, the gray scale response time is measured as the response time of the display device to change between two gray scales;
flicker test unit: measuring the display brightness change condition of the multi-path or matrix display device;
brightness and contrast test unit: detecting the brightness contrast of the display device;
Viewing angle range test unit: measuring the angle corresponding to the maximum contrast, i.e. the view peak; simultaneously measuring the view angle range of the display screen, including the view angle range in the horizontal and vertical directions, namely that the contrast value is larger than the limit value;
Transmittance test unit: the method is suitable for the liquid crystal display device without the backlight source, and is used for measuring the transmissivity of the liquid crystal display device in the visible light range;
and a specular reflection coefficient test unit for an effective display area surface: measuring a specular reflectance of an effective display area of the display device caused by incident light from outside the display device;
white field chroma and chroma uniformity test unit: measuring white field chromaticity and chromaticity uniformity of a liquid crystal display device with a built-in backlight only for a matrix display device, and only for the matrix display device;
Color reproducibility test unit: for matrix display devices only, the color reproducibility of the display device is expressed in terms of gamut values;
Display resolution test unit: measuring the pixel resolution of the display device only for high resolution matrix display devices;
cross talk test unit: measuring the degree of cross talk of the liquid crystal display device in a graphic display state;
threshold voltage and saturation voltage test unit: the method is suitable for a twisted nematic liquid crystal display device and is used for measuring the threshold voltage and the saturation voltage of the liquid crystal display device;
And a power consumption testing unit: measuring power consumption and current of the display device; liquid crystal display devices typically include a liquid crystal display, drive circuitry, analog circuitry, and circuitry for an accompanying backlight system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319478.3A CN109917571B (en) | 2019-04-19 | 2019-04-19 | Photoelectric parameter detection interface system of liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319478.3A CN109917571B (en) | 2019-04-19 | 2019-04-19 | Photoelectric parameter detection interface system of liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109917571A CN109917571A (en) | 2019-06-21 |
| CN109917571B true CN109917571B (en) | 2024-05-28 |
Family
ID=66977931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910319478.3A Active CN109917571B (en) | 2019-04-19 | 2019-04-19 | Photoelectric parameter detection interface system of liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109917571B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111415614B (en) * | 2020-03-20 | 2021-08-24 | 杭州德亚照明工程有限公司 | Display screen debugging processing method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2639986Y (en) * | 2003-05-30 | 2004-09-08 | 上海华园微电子技术有限公司 | Testing circuit of liquid crystal display driver |
| CN201382850Y (en) * | 2009-03-24 | 2010-01-13 | Tcl集团股份有限公司 | Test device for liquid crystal display module |
| CN203616547U (en) * | 2013-12-19 | 2014-05-28 | Tcl显示科技（惠州）有限公司 | Test system of liquid crystal display module |
| CN204904796U (en) * | 2015-07-22 | 2015-12-23 | 深圳市亮晶晶电子有限公司 | Multifunctional LCM test board |
| CN105761654A (en) * | 2016-05-17 | 2016-07-13 | 深圳前海骁客影像科技设计有限公司 | Flexible easy-to-expand liquid crystal screen testing platform |
-
2019
- 2019-04-19 CN CN201910319478.3A patent/CN109917571B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2639986Y (en) * | 2003-05-30 | 2004-09-08 | 上海华园微电子技术有限公司 | Testing circuit of liquid crystal display driver |
| CN201382850Y (en) * | 2009-03-24 | 2010-01-13 | Tcl集团股份有限公司 | Test device for liquid crystal display module |
| CN203616547U (en) * | 2013-12-19 | 2014-05-28 | Tcl显示科技（惠州）有限公司 | Test system of liquid crystal display module |
| CN204904796U (en) * | 2015-07-22 | 2015-12-23 | 深圳市亮晶晶电子有限公司 | Multifunctional LCM test board |
| CN105761654A (en) * | 2016-05-17 | 2016-07-13 | 深圳前海骁客影像科技设计有限公司 | Flexible easy-to-expand liquid crystal screen testing platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109917571A (en) | 2019-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100543535C (en) | Electro-optical device, driving circuit and electronic equipment | |
| CN107767807B (en) | Color spot repairing method and system suitable for CELL procedure | |
| US7791717B2 (en) | Reflective display device testing system, apparatus, and method | |
| CN102789073B (en) | MIPI interface lcd panel test method | |
| CN202024963U (en) | Light transmittance measuring device for near crystalline state liquid crystal display screen | |
| CN103681772A (en) | Array substrate and display device | |
| CN102160023A (en) | Display panel with built-in optical sensor | |
| CN103323962A (en) | Testing method for MIPI (Mobile Industry Processor Interface) full high definition liquid crystal display | |
| CN109410839A (en) | Correction optimization method, device, electronic equipment and the storage medium of display screen | |
| CN101697271A (en) | Direct-type LED backlight color uniformity correction system and direct-type LED backlight color uniformity correction method | |
| CN209486417U (en) | A kind of liquid crystal display device photoelectric parameter detection interface arrangement | |
| US9818365B2 (en) | Method and device for adjusting a display picture | |
| CN109917571B (en) | Photoelectric parameter detection interface system of liquid crystal display device | |
| CN102768017A (en) | Line width measuring device and method | |
| CN209312421U (en) | A kind of display correction device and display | |
| CN209215783U (en) | A kind of liquid crystal module response time detection device | |
| CN111613157A (en) | Mura repair test method of display panel, display panel and display device | |
| CN101294866A (en) | Optical power measuring device capable of checking optical fiber joint end face | |
| KR20110133201A (en) | Light emitting diode drive circuit and method for driving thereof | |
| CN101762921B (en) | Detection method of display and system thereof | |
| KR20070029920A (en) | Test pattern generating device for display device | |
| KR20090094694A (en) | Test apparatus and method for liquid crystal display | |
| CN201594889U (en) | Digital television drive board debugging device | |
| CN101477791A (en) | LCD display device, maintenance system and method thereof | |
| CN102608790A (en) | Cholesterol liquid crystal touch display panel and touch positioning method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |