CN112213876B - Adjustable curved surface liquid crystal display panel test device and operation method thereof - Google Patents
Adjustable curved surface liquid crystal display panel test device and operation method thereof Download PDFInfo
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- CN112213876B CN112213876B CN202011179868.4A CN202011179868A CN112213876B CN 112213876 B CN112213876 B CN 112213876B CN 202011179868 A CN202011179868 A CN 202011179868A CN 112213876 B CN112213876 B CN 112213876B
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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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Abstract
The test device comprises a support assembly, a plurality of slide rail supporting assemblies, a plurality of short slide rails, a plurality of long slide rails, a sensor assembly, a plurality of long frame strips, a plurality of short frame strips and a T-shaped ruler. The slide rail supporting assembly measures the rotation angle alpha of the straight line segment l of the liquid crystal display panel and simultaneously monitors the force F measured by the sensor.
Description
[ technical field ] A method for producing a semiconductor device
The disclosure relates to the field of display technologies, and in particular relates to an adjustable curved liquid crystal display panel testing device and an operation method thereof.
[ background of the invention ]
When the market of the traditional display product is weak, the curved surface product is one of the key technologies for improving the product competitiveness. In contrast to flat display products, curved screens suffer from a forming stress on the glass due to the bending of the liquid crystal display panel.
The existing test device cannot be compatible with design schemes with different lengths L and widths B, different bending radii R and different straight line segments L, so that the problems of high cost and serious waste exist. However, the conventional test apparatus obtains the bending radius R by an approximation method of three-point bending, but the bending radius R does not match the actual bending radius R and the accuracy is insufficient. In addition, the conventional test device cannot measure the geometric dimension of the curved liquid crystal display panel after forming. In addition, when the service life of the curved liquid crystal panel is tested, the damage time cannot be monitored by the conventional product due to the fact that the time required for fragment is long.
[ summary of the invention ]
In order to solve the above technical problems, the present invention provides an adjustable curved liquid crystal display panel testing apparatus and an operating method thereof.
The invention discloses an adjustable curved surface liquid crystal display panel testing device, which comprises: a carriage assembly, the carriage assembly including a stop; at least one sliding rail supporting component is arranged on the limiting device, and the rest sliding rail supporting components are arranged at a certain distance; the short slide rails are connected with the slide rail supporting assembly through first L-shaped connecting pieces and a plurality of first T-shaped bolts; the long slide rails are connected with the short slide rails through second L-shaped connecting pieces and a plurality of second T-shaped bolts; the sensor assembly is connected with the sliding rail supporting assembly through a third L-shaped connecting piece and a third T-shaped bolt; the short frame strips are connected with the short sliding rails; the long frame strips are connected with the long sliding rails; and the T-shaped ruler is arranged on the sliding rail supporting component.
In the adjustable curved surface liquid crystal display panel test device of this application, slide rail supporting component is equipped with first T shape recess, slide rail supporting component's both ends are equipped with the pivot respectively, just slide rail supporting component's one end is equipped with the angle pointer.
In the adjustable curved surface liquid crystal display panel test device of this application, one side of short slide rail is equipped with second T shape recess, and adjacent one side is equipped with first dovetail, and one side of long slide rail is equipped with third T shape recess, and adjacent one side is equipped with the second dovetail, and wherein, the lower surface of first dovetail and the upper surface parallel and level in second dovetail groove.
In the adjustable curved surface liquid crystal display panel testing device, the sensor assembly is symmetrical left and right and comprises square steel, a through groove sliding rail, a sensor and a U-shaped connecting piece.
In the adjustable curved surface liquid crystal display panel test device of this application, the square steel with the U-shaped connecting piece sees through the pin joint, the U-shaped connecting piece pass through first bolt with link up groove sliding rail connection, and link up the groove sliding rail see through straight connecting piece and a plurality of second bolt with the sensor is connected.
In the application of the adjustable curved surface liquid crystal display panel test device, the bottom end of the short frame strip is a first dovetail part, just the first dovetail part corresponds with the first dovetail groove, and the bottom end of the long frame strip is a second dovetail part, just the second dovetail part corresponds with the second dovetail groove, wherein, the upper surface of the short frame strip and the upper surface parallel and level of the long frame strip.
In the adjustable curved surface liquid crystal display panel testing device, the T-shaped ruler comprises a graduated horizontal ruler and a vertical ruler, and the horizontal ruler can slide in a square hole at the end part of the vertical ruler.
The invention discloses an operation method of an adjustable curved surface liquid crystal display panel test device, which comprises the following steps: providing a liquid crystal display panel, wherein the length of the liquid crystal display panel is L, and the width of the liquid crystal display panel is B; providing a frame adhesive tape, wherein the width of the frame adhesive tape is b; setting a curved surface setting parameter, wherein the curved surface setting parameter comprises a straight line segment l and a middle section bending radius R; adjusting the mounting position of each short slide rail on the slide rail support assembly to ensure that the distance between each long frame strip is B-2B; adjusting the mounting position of each long slide rail on the short slide rail to ensure that the extension length of the long slide rail mounted on one side of the liquid crystal display panel is consistent with the linear section l; adjusting the slide rail support assembly to ensure that the distance between the short frame strips is L-2 b; adjusting the installation position of square steel in the sensor assembly on the slide rail supporting assembly to enable the square steel to be located at the B/2 position of the liquid crystal display panel, and screwing down through groove slide rails at two ends of the sensor assembly and a first bolt of a U-shaped connecting piece; adjusting each short frame strip of a first dovetail groove of the short slide rail and each long frame strip of a second dovetail groove of the long slide rail, wherein the adjacent short frame strips and the adjacent long frame strips are in mutual contact to form a rectangular frame area; pasting the liquid crystal display panel on the rectangular frame area; removing all the slide rail supporting components on the inner side; adjusting the T-shaped ruler to enable a vertical ruler in the T-shaped ruler to be located at the L/2 position of the liquid crystal display panel; unscrewing the first bolt of the through slot slide rail and the U-shaped connection of the sensor assembly; sliding the U-shaped connecting piece along the through groove slide rail, and finely adjusting the T-shaped ruler; and measuring the rotation angle alpha of the straight line segment l of the liquid crystal display panel through a slide rail supporting component with an angle measuring scale, and monitoring the force F measured by the sensor.
In the operation method of the adjustable curved liquid crystal display panel test device, when the U-shaped connecting piece slides along the through groove slide rail, the T-shaped ruler is finely adjusted, the scales h0 and h1 of the liquid crystal display panel before and after bending are respectively measured, the bending height h is h1-h0, and when h reaches the bending height corresponding to the bending radius R, the movement is stopped, and the first bolt is screwed down for fixing.
In the operation method of the adjustable curved-surface liquid crystal display panel test device, the force F measured by the sensor fluctuates, and the duration time for monitoring the fluctuation is the service life of the liquid crystal display panel.
The adjustable curved surface liquid crystal display panel testing device provided by the invention has the following beneficial effects:
firstly, the test device can be suitable for liquid crystal display panels with different sizes, namely liquid crystal display panels with different lengths L and widths B, the minimum size of the short side of the liquid crystal display panel is larger than 2 times of the short slide rail, the maximum size is not limited, the minimum size of the long side of the liquid crystal display panel is not limited, and the maximum size of any length of the long side can be realized by prolonging the slide rail supporting component.
Secondly, the testing device can also be suitable for liquid crystal display panels with different straight-line segments L, namely different proportions of the straight-line segments L in the long edge L of the liquid crystal display panel are important design parameters, and the rigidity of the long slide rail is far greater than the sum of the rigidity of the side frame strip and the rigidity of the liquid crystal display panel, so that the long slide rail still keeps a straight form after being bent.
Thirdly, the test device can also be suitable for liquid crystal display panels with different middle bending radiuses R, namely, the composite section of the middle bending section and the long frame of the liquid crystal display panel is of a uniform-section structure, and the uniform-section structure deforms into an arc when being subjected to bending moment, so that any bending radius R can be accurately achieved by adjusting the test device.
Fourthly, the test device can measure the rotation angle alpha and the arch height h of the straight line section after being bent. The bending radius R can be calculated by the arch height h, the length L of the straight line segment, the length L of the long side of the liquid crystal display panel, and the rotation angle α. In addition, the fracture time of the curved liquid crystal display panel can be accurately monitored, and the service life can be measured.
Moreover, the testing device can be used for testing the actual use strength and the degumming service life of the adhesive tape in the curved liquid crystal display panel; the principle is that as the glass breaks, the force F measured by the sensor will change when the tape is debonded or broken. In addition, if the influence of the adhesive tape is not needed to be considered during the test, a square groove can be designed on the side edge of the long frame strip and the short frame strip, and the liquid crystal panel is embedded into the groove during the test, so that the adhesive tape can be avoided.
Finally, the testing device is suitable for the tests of all curved-surface liquid crystal display panels, so that the die sinking cost and the testing period are obviously reduced, and the testing precision is improved.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of an adjustable curved-surface LCD panel testing device according to the present invention;
FIG. 2 is a schematic structural view of a bracket assembly of the present invention;
FIG. 3a is a schematic structural view of the slide rail support assembly of the present invention;
FIG. 3b is a schematic view of one end of the track support assembly of the present invention;
FIG. 4 is a schematic structural diagram of a short slide rail according to the present invention;
FIG. 5 is a schematic structural view of the long slide rail of the present invention;
FIG. 6a is a schematic structural view of a sensor assembly of the present invention;
FIG. 6b is a schematic structural view of a local sensor assembly of the present invention;
FIG. 6c is a schematic top view of a local sensor assembly of the present invention;
FIG. 6d is a schematic structural diagram of a local sensor assembly of the present invention;
FIG. 7a is a schematic structural view of a short frame strip according to the present invention;
FIG. 7b is a schematic structural view of a long frame strip according to the present invention;
FIG. 7c is a schematic view of the combination of the short frame strip and the long frame strip of the present invention;
FIG. 8 is a schematic view of the T-bar of the present invention;
FIG. 9 is a schematic view of a liquid crystal display panel according to the present invention;
FIG. 10 is a schematic view of the operation dynamics of the adjustable curved-surface LCD panel testing apparatus;
FIG. 11 is a schematic view showing the bending dynamics of the LCD panel according to the present invention.
[ detailed description ] embodiments
An adjustable curved-surface liquid crystal display panel test device is shown in fig. 1 and comprises a support assembly 1, a plurality of slide rail support assemblies 2, a plurality of short slide rails 3, a plurality of long slide rails 4, a sensor assembly 5, a plurality of short frame strips 6, a plurality of long frame strips 7 and a T-shaped ruler 8.
As shown in fig. 2, the bracket assembly 1 is used for supporting the whole testing apparatus, two sides of one end of the bracket assembly are provided with the limiting devices 11 containing angle scales shown in fig. 2, and the limiting devices 11 are used for measuring the angle between the curved linear segment l of the curved liquid crystal display panel and the horizontal plane after the curved linear segment l is bent.
As shown in fig. 3a, the middle portion of the slide rail supporting component 2 includes a first T-shaped groove 21, and two ends of the slide rail supporting component 2 are respectively provided with a rotating shaft 22. As shown in fig. 3b, the rotating shaft 22 at one end of the sliding rail support assembly 2 is provided with an angle indicator 23, and the first T-shaped groove 21 and the rotating shaft 22 are connected by a plurality of fourth T-shaped bolts 24. The sliding rail support assemblies 2 are 4 groups, at least one sliding rail support assembly 2 is arranged on the limiting device 11, and the rest sliding rail support assemblies 2 are arranged on the support assembly 1 according to a certain distance.
As shown in fig. 4, one side of the short slide rail 3 is provided with a second T-shaped groove 31, and the adjacent side is provided with a first dovetail groove 32, and the short slide rail 3 is connected with the slide rail support assembly 2 through a first L-shaped connecting member 33 and a plurality of first T-shaped bolts 34. Wherein, the plurality of short slide rails 3 are 4.
As shown in fig. 5, one side of the long slide rail 4 is provided with a third T-shaped groove 41, and the adjacent side is provided with a second dovetail groove 42, and the long slide rail 4 is connected with the short slide rail 3 through a second L-shaped connecting piece 43 and a plurality of second T-shaped bolts 44. Wherein, the plurality of long slide rails 4 are 4. Further, the lower surface of the first dovetail groove 32 is flush with the upper surface of the second dovetail groove 42.
As shown in fig. 6a, the sensor element 5 is symmetrical left and right, and the sensor element 5 includes a square steel 51, a through groove slide rail 52, a sensor 53, and a U-shaped connector 54. As shown in fig. 6b, the square steel 51 is connected with the U-shaped connecting member 54 through a pin 55, and the top of the U-shaped connecting member 54 is perforated so that the U-shaped connecting member 54 slides to the proper position of the through-slot slide rail 52. As shown in fig. 6c, the U-shaped connector 54 is fastened to the through slot slide rail 52 by a first bolt 571. As shown in fig. 6d, the through slot slide rail 52 is connected to the sensor 53 by a straight connector 56 and a plurality of second bolts 572. In addition, the sensor assembly 5 is connected to the rail support assembly 2 by a third L-shaped connector 58 and a plurality of third T-shaped bolts 59.
As shown in fig. 7a, the bottom end of the short frame strip 6 is a first dovetail portion 61, and the first dovetail portion 61 matches with the first dovetail groove 32 of the short slide rail 3. As shown in fig. 7b, the bottom end of the long frame strip 7 is a second dovetail portion 71, and the second dovetail portion 71 matches with the second dovetail groove 42 of the long slide rail 4. Therefore, the short bar 6 and the long bar 7 can slide in the first dovetail groove 32 and the second dovetail groove 42, respectively. As shown in fig. 7c, the upper surface of the short frame strip 6 and the upper surface of the long frame strip 7 are flush, i.e. the upper surfaces of the short frame strip 6 and the long frame strip 7 must be flush after being mounted for adhering the liquid crystal display panel 9. The number of the short frame strips 6 is 2, the number of the long frame strips 7 is 2, and the relative positions of the 2 short frame strips 6 and the 2 long frame strips 7 are correspondingly adjusted through different positions of the short slide rails 3 and the long slide rails 4 during assembly, so that frames with different sizes are simulated.
As shown in fig. 8, the T-shaped ruler 8 includes a graduated horizontal ruler 81 and a vertical ruler 82, and the horizontal ruler 81 can slide in a square hole 83 at the end of the vertical ruler 82, wherein the T-shaped ruler 8 is disposed on the slide rail support assembly 2.
Please refer to fig. 9-11 for the following description.
An operation method of an adjustable curved surface liquid crystal display panel test device comprises the following steps:
s10: a liquid crystal display panel 9, a frame adhesive tape 901 and a frame 902 are provided, wherein the length of the liquid crystal display panel 9 is L, the width of the liquid crystal display panel is B, and the width of the frame adhesive tape is B.
S20: and setting a curved surface setting parameter, wherein the curved surface setting parameter comprises a straight line segment l and a middle section bending radius R.
S30: the installation position of each short slide rail 3 on the slide rail support component 2 is adjusted to ensure that the distance between each long frame strip 7 is B-2B.
S40: and adjusting the mounting position of each long slide rail 4 on the short slide rail 3 to ensure that the extension length of the long slide rail mounted on one side of the liquid crystal display panel is consistent with the linear section l.
S50: and adjusting the slide rail support assembly 2 to ensure that the distance between each short frame strip 6 is L-2 b.
S60: adjusting the installation position of the square steel 51 in the sensor assembly 5 on the slide rail support assembly 2 so that the square steel 51 is at the position B/2 of the liquid crystal display panel 9, and screwing the through groove slide rails 52 at the two ends of the sensor assembly 5 and the first bolts 571 of the U-shaped connecting piece 54.
S70: and adjusting each short frame strip 6 in the first dovetail groove 32 of the short slide rail 3 and each long frame strip 7 in the second dovetail groove 42 of the long slide rail 4, wherein the adjacent short frame strips 6 and the adjacent long frame strips 7 are in contact with each other to form a rectangular frame area.
S80: and adhering the liquid crystal display panel 9 to the rectangular frame area.
S90: and removing the inner side of each slide rail supporting component 2.
S100: the T-shaped ruler 8 is adjusted so that the vertical ruler 82 of the T-shaped ruler 8 is positioned at L/2 of the liquid crystal display panel 9.
S110: the through-slot slide rail 52 of the sensor assembly 5 is unscrewed from the first bolt 571 of the U-shaped connection 54.
S120: and sliding the U-shaped connecting piece along the through groove slide rail, and finely adjusting the T-shaped ruler.
S130: the rotation angle α of the straight line segment l of the liquid crystal display panel 9 is measured by the rail support assembly 2 having the angle measurement scale, and the force F measured by the sensor 53 is monitored.
Further, as shown in fig. 10, when the U-shaped link 54 is slid along the through-groove slide rail 52 while the T-shaped ruler 8 is finely adjusted, the scales h0 and h1 of the liquid crystal display panel 9 before and after bending are measured, respectively, to obtain a bending height h of h1 to h0, and when h reaches the bending height corresponding to the bending radius R, the movement is stopped and the first bolt is tightened to fix the height.
Further, the panel is fixed after bending, F is kept constant, until a large fluctuation occurs when the panel is statically broken, and the force F measured by the sensor 53 fluctuates. If the liquid crystal display panel 9 breaks after reaching the lifetime, a fluctuation occurs in F, and the time from the start of measurement to the occurrence of the fluctuation, i.e., the lifetime, i.e., the duration from the start of measurement to the occurrence of the fluctuation is the lifetime of the liquid crystal display panel 9.
The foregoing is merely a preferred embodiment of the present disclosure, and it should be noted that modifications and refinements may be made by those skilled in the art without departing from the principle of the present disclosure, and these modifications and refinements should also be construed as the protection scope of the present disclosure.
Claims (3)
1. An operation method of an adjustable curved-surface liquid crystal display panel test device, wherein the test device comprises:
a carriage assembly, the carriage assembly including a stop;
at least one sliding rail supporting component is arranged on the limiting device, and the rest sliding rail supporting components are arranged at a certain distance;
the short slide rails are connected with the slide rail supporting assembly through first L-shaped connecting pieces and first T-shaped bolts;
the long slide rails are connected with the short slide rails through second L-shaped connecting pieces and second T-shaped bolts;
the sensor assembly is connected with the sliding rail supporting assembly through a third L-shaped connecting piece and a third T-shaped bolt;
the short frame strips are connected with the short sliding rails;
the long frame strips are connected with the long sliding rails; and
the T-shaped ruler is arranged on the sliding rail supporting component;
the operation method of the adjustable curved surface liquid crystal display panel test device is characterized by comprising the following steps:
providing a liquid crystal display panel, a frame adhesive tape and a middle frame, wherein the length of the liquid crystal display panel is L, the width of the liquid crystal display panel is B, and the width of the frame adhesive tape is B;
setting a curved surface setting parameter, wherein the curved surface setting parameter comprises a straight line segment l and a middle section bending radius R;
adjusting the mounting position of each short slide rail on the slide rail support assembly to ensure that the distance between each long frame strip is B-2B;
adjusting the mounting position of each long slide rail on the short slide rail to ensure that the extension length of the long slide rail mounted on one side of the liquid crystal display panel is consistent with the linear section l;
adjusting the sliding rail support assembly to ensure that the distance between each short frame strip is L-2 b;
adjusting the installation position of square steel in the sensor assembly on the slide rail supporting assembly to enable the square steel to be located at the B/2 position of the liquid crystal display panel, and screwing down through groove slide rails at two ends of the sensor assembly and a first bolt of a U-shaped connecting piece;
adjusting each short frame strip of a first dovetail groove of the short slide rail and each long frame strip of a second dovetail groove of the long slide rail, wherein the adjacent short frame strips and the adjacent long frame strips are in mutual contact to form a rectangular frame area;
pasting the liquid crystal display panel on the rectangular frame area;
removing the slide rail supporting components on the inner side of the rectangular frame area;
adjusting the T-shaped ruler to enable a vertical ruler in the T-shaped ruler to be located at the L/2 position of the liquid crystal display panel;
unscrewing the first bolt of the through slot slide rail and the U-shaped connection of the sensor assembly;
sliding the U-shaped connecting piece along the through groove slide rail, and finely adjusting the T-shaped ruler; and
and measuring the rotation angle alpha of the straight line segment l of the liquid crystal display panel through the slide rail supporting assembly with the angle measuring scale, and monitoring the force F measured by the sensor.
2. The method as claimed in claim 1, wherein the T-shaped ruler is finely adjusted while sliding the U-shaped connector along the through-slot rail, so as to obtain a bending height h = h1-h0 by measuring the heights h0 and h1 of the liquid crystal display panel before and after bending, respectively, and when h reaches a bending height corresponding to the bending radius R, the movement is stopped and the first bolt is tightened to fix the height.
3. The method as claimed in claim 1, wherein the measured force F measured by the sensor fluctuates, and the duration of the fluctuation from the beginning of the monitoring is the lifetime of the LCD panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179868.4A CN112213876B (en) | 2020-10-29 | 2020-10-29 | Adjustable curved surface liquid crystal display panel test device and operation method thereof |
| PCT/CN2020/132043 WO2022088345A1 (en) | 2020-10-29 | 2020-11-27 | Adjustable curved surface liquid crystal display panel testing device and operation method therefor |
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| CN202011179868.4A CN112213876B (en) | 2020-10-29 | 2020-10-29 | Adjustable curved surface liquid crystal display panel test device and operation method thereof |
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| CN112213876B true CN112213876B (en) | 2021-08-24 |
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| WO (1) | WO2022088345A1 (en) |
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| CN114577451B (en) * | 2022-02-24 | 2023-08-01 | 苏州华星光电技术有限公司 | Method for testing service life of display panel |
| CN117169235B (en) * | 2023-09-01 | 2024-04-26 | 上海仪电智能科技有限公司 | Defect detection device of display panel and operation method |
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| CN111538176A (en) * | 2020-05-25 | 2020-08-14 | Tcl华星光电技术有限公司 | Adhesion force test fixture and test method thereof |
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| KR100776177B1 (en) * | 2004-12-17 | 2007-11-16 | 주식회사 디이엔티 | Work table for flat display panel tester |
| KR100913188B1 (en) * | 2008-05-02 | 2009-08-20 | (주)유비프리시젼 | Support for all sizes panel of worktable usingtesting device for display panel |
| KR101083714B1 (en) * | 2011-04-05 | 2011-11-15 | 주식회사 윌테크 | Curved surface measurement process and measuring equipment of display panel protector |
| CN102393576A (en) * | 2011-08-03 | 2012-03-28 | 深圳市华星光电技术有限公司 | Visual checking machine of glass baseplate in liquid crystal display and checking method thereof |
| CN105204199B (en) * | 2015-10-19 | 2019-03-15 | 京东方科技集团股份有限公司 | Tester table and test device |
| CN106680108A (en) * | 2016-11-24 | 2017-05-17 | 惠科股份有限公司 | Method and device for bending test of display panel |
| CN106875849B (en) * | 2017-04-18 | 2019-04-12 | 武汉华星光电技术有限公司 | A kind of bend test jig of flexible display screen |
| KR102148888B1 (en) * | 2019-03-18 | 2020-10-14 | 주식회사 이노테크 | Bending Test Apparatus Using Lifter And Slider |
| CN210626820U (en) * | 2019-11-01 | 2020-05-26 | 武汉精立电子技术有限公司 | Manual adjusting lamp box and equipment for detecting panels of various specifications |
| CN110987654B (en) * | 2019-11-25 | 2022-05-03 | 昆山国显光电有限公司 | Bending stiffness testing method and device and testing method of display panel |
| CN210982963U (en) * | 2019-11-27 | 2020-07-10 | 深圳市卓盈泰电子有限公司 | Liquid crystal display module detection device |
| CN110864969B (en) * | 2019-11-29 | 2022-06-21 | 昆山国显光电有限公司 | Bending stiffness testing method and device and testing method of display panel |
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- 2020-10-29 CN CN202011179868.4A patent/CN112213876B/en active Active
- 2020-11-27 WO PCT/CN2020/132043 patent/WO2022088345A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106950742A (en) * | 2017-05-24 | 2017-07-14 | 京东方科技集团股份有限公司 | A kind of curved-surface display device and preparation method thereof |
| CN111538176A (en) * | 2020-05-25 | 2020-08-14 | Tcl华星光电技术有限公司 | Adhesion force test fixture and test method thereof |
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| CN112213876A (en) | 2021-01-12 |
| WO2022088345A1 (en) | 2022-05-05 |
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