CN203760047U - OTP device and positioning mechanism of AMOLED display screen - Google Patents
OTP device and positioning mechanism of AMOLED display screen Download PDFInfo
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- CN203760047U CN203760047U CN201320860011.8U CN201320860011U CN203760047U CN 203760047 U CN203760047 U CN 203760047U CN 201320860011 U CN201320860011 U CN 201320860011U CN 203760047 U CN203760047 U CN 203760047U
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Abstract
The utility model discloses an OTP device and a positioning mechanism of an AMOLED display screen. The positioning mechanism comprises a test platform with a top surface, a crimping jig disposed on the top surface of the test platform, a movable positioning frame which is disposed on the test platform and is used to carry a test probe of an external optical measuring device, and an auxiliary connector disposed on the top surface of the test platform. The top surface is provided with a limiting groove of the used for limiting a to-be-tested AMOLED display screen. The crimping jig can be abutted against the to-be-tested AMOLED display screen, so as to position the AMOLED display screen. The movable positioning frame can slide relative to the test platform, so as to adjust relative positions of the test probe of the optical measuring device and the to-be-tested AMOLED display screen. The auxiliary connector can connect the driver chip of the to-be-tested AMOLED display screen with an external data processing device in a communication manner, so as to perform data burn on the driver chip of the to-be-tested AMOLED display screen. The positioning mechanism can improve OTP efficiency, and reduce cost of the OTP device.
Description
[technical field]
The utility model relates to a kind of checkout equipment of AMOLED display screen, particularly relates to a kind of OTP device and detent mechanism thereof of AMOLED display screen.
[background technology]
Based on AMOLED(Active Matrix/Organic Light Emitting Diode, active matrix organic light-emitting diode) singularity of display screen, for solving screen body colour coordinate offset problem, conventionally need bind at module after (Bonding) technique completes, to driving chip (Driver IC) to carry out OTP(One TimeProgram, one-time programming), namely by driving the parameter predetermined manner correction screen body colour coordinate of chip.Due to the particular/special requirement of OTP operation, if dependence personnel operation merely, fault rate is higher, will have a strong impact on production efficiency and product quality.
If adopt full-automatic OTP device, rely on equipment automatically to carry out optic test and connection completely, although can reduce fault rate, fully-automatic equipment machine switching efficiency is lower, be only applicable to single, a large amount of AMOLED screen bodies and carry out OTP, and full automatic OTP installation cost is also very high.
[utility model content]
In view of above-mentioned condition, be necessary the detent mechanism of the OTP device that a kind of AMOLED display screen is provided, it can reduce the cost of OTP device, and improves OTP efficiency.
A detent mechanism for the OTP device of AMOLED display screen, comprising:
Have the test platform of end face, described end face is provided with the stopper slot for spacing AMOLED display screen to be tested;
Be located at the crimping jig on the end face of described test platform, described crimping jig and described AMOLED display screen to be tested can butts, to locate described AMOLED display screen;
Be located on described test platform, for carrying the running fix support of test probe of outside optical measuring device, described running fix support with respect to described test platform slidably, to regulate the test probe of described optical measuring device and the relative position of described AMOLED display screen to be tested; And
Be located at the subconnector on the end face of described test platform, described subconnector can carry out communication with outside data processing equipment by the driving chip of described AMOLED display screen to be tested and be connected, so that the driving chip of described AMOLED display screen to be tested is carried out to data recording.
Compared to the OTP device of traditional AMOLED display screen, the detent mechanism of above-mentioned OTP device at least has the following advantages:
(1) above-mentioned detent mechanism adopts the stopper slot of test platform to carry out spacing AMOLED display screen to be measured, adopts crimping jig to compress AMOLED display screen to be measured, to locate AMOLED display screen to be tested; And above-mentioned detent mechanism adopts the relative position of test probe that running fix support regulates optical measuring device and AMOLED display screen to be tested, thereby guarantee that optical measurement point accurately locates, minimizing personnel operation error.
(2) above-mentioned detent mechanism is being located after AMOLED display screen to be tested, adopts subconnector that AMOLED display screen to be tested and data processing equipment communication are coupled together, and docks thereby convenient realization is artificial, improves the efficiency of OTP;
(3) above-mentioned detent mechanism adopts machinery location and the mode of manually docking, to change simple artificial or full automatic work pattern, reach the OTP object of the various dissimilar AMOLED display screens of flexible reply, to promote OTP efficiency, reduce optical measurement and burning data error, thus improving production efficiency and product quality.And the structure of above-mentioned detent mechanism is simple compared with fully-automatic equipment, cost is lower.
In an embodiment, described crimping jig comprises therein:
Be arranged on the base of the diapire of described stopper slot;
Through described base and be parallel to described stopper slot diapire arrange bracing frame, support frame as described above can move up and down with respect to described base, to regulate the height of support frame as described above with respect to the diapire of described stopper slot; And
Be arranged on the thimble arranging on support frame as described above and perpendicular to the diapire of described stopper slot, described thimble and described AMOLED display screen to be tested can butts.
In an embodiment, described thimble is spring probe therein, the test point butt of the substrate of described spring probe and described AMOLED display screen to be tested, and conduct, give described AMOLED display screen power supply by described spring probe;
Or described thimble is elastic, by the substrate of AMOLED display screen to be tested described in described elastic butt, with AMOLED display screen to be tested described in elastic compression joint, and described AMOLED display screen to be tested is powered by peripheral hardware connector.
In an embodiment, described crimping jig also comprises drive unit therein, and described drive unit is arranged on described base, and is connected with support frame as described above, can drive support frame as described above to move up and down with respect to described base by described drive unit.
In an embodiment, described drive unit is telescopic cylinder therein, and the expansion link of described telescopic cylinder is fixedly connected with support frame as described above;
Or described drive unit is motor, the driving shaft of described motor is connected with support frame as described above by leading screw.
In an embodiment, described crimping jig also comprises hand-crank therein, can drive support frame as described above to move up and down with respect to described base by described hand-crank.
Therein in an embodiment, described running fix support is U-shaped support, described test platform also comprises two sides that are connected with described end face and are oppositely arranged, each described side is equipped with a guide part, the two ends of described U-shaped support are respectively equipped with a sliding part, and described sliding part along the described guide part of described side slidably.
In an embodiment, described guide part is to be parallel to the gathering sill that described end face extends therein, and described sliding part is the slip lug of being located at the end of described U-shaped support, and described slip lug along described gathering sill slidably;
Or described guide part is to be parallel to the guide rail that described end face arranges, described sliding part is the chute of being located at the end of described U-shaped support, and described chute along described guide rail slidably.
In an embodiment, described subconnector is FPC connector therein;
And/or described optical measuring device is color analyzer.
Meanwhile, the utility model also provides a kind of OTP device of AMOLED display screen.
An OTP device for AMOLED display screen, it comprises:
Above-mentioned detent mechanism;
Described data processing equipment; And
Described optical measuring device, is arranged on described running fix support, for measuring the chromaticity coordinates of described AMOLED display screen to be tested;
Wherein, described optical measuring device sends the data of the chromaticity coordinates of collection to outside data processing equipment, with the data analysis to the chromaticity coordinates gathering.
[brief description of the drawings]
Fig. 1 is the stereographic map of the detent mechanism of the OTP device of the AMOLED display screen of the utility model embodiment;
Fig. 2 is the side view of the detent mechanism of the OTP device of the AMOLED display screen shown in Fig. 1;
Fig. 3 is the side view at another visual angle of the detent mechanism of the OTP device of the AMOLED display screen shown in Fig. 1;
Fig. 4 is the stereographic map of the crimping jig of the detent mechanism of the OTP device of the AMOLED display screen shown in Fig. 1;
Fig. 5 is the stereographic map at another visual angle of crimping jig shown in Fig. 4;
Fig. 6 is the side view of crimping jig shown in Fig. 4.
[embodiment]
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.In accompanying drawing, provide preferred embodiment of the present utility model.But the utility model can be realized in many different forms, be not limited to embodiment described herein.On the contrary, providing the object of these embodiment is to make to the understanding of disclosure of the present utility model more thoroughly comprehensively.
It should be noted that, when element is called as " being fixed on " another element, it can be directly on another element or also can have an element placed in the middle.When an element is considered to " connection " another element, it can be directly connected to another element or may have centering elements simultaneously.On the contrary, when element be known as " directly existing " another element " on " time, there is not intermediary element.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology that use are herein identical with the implication that belongs to the common understanding of those skilled in the art of the present utility model with scientific terminology.The term using in instructions of the present utility model herein, just in order to describe the object of specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
Refer to Fig. 1, the OTP device of the AMOLED display screen of an embodiment of the present utility model, for AMOLED display screen (not shown) is carried out to chromaticity coordinates test, and carries out OTP(One Time Program, one-time programming to AMOLED display screen).The OTP device of this AMOLED display screen comprises detent mechanism 100, data processing equipment (not shown) and optical measuring device (figure is mark not).
See also Fig. 2 and Fig. 3, detent mechanism 100 is for locating AMOLED display screen to be tested, and tests and be connected with AMOLED display screen to be tested.Detent mechanism 100 comprises test platform 110, crimping jig 120, running fix support 130 and subconnector 140.
Test platform 110 has end face, and end face is provided with the stopper slot 111 for spacing AMOLED display screen to be tested.Specifically, in illustrated embodiment, test platform 110 is slab construction.Certainly, in the utility model, test platform 110 can be also other mechanisms, and for example, test platform 110 can be also framed structure.
See also Fig. 4 to Fig. 6, crimping jig 120 is located on the end face of test platform 110, and crimping jig 120 and AMOLED display screen to be tested can butts, to locate AMOLED display screen.Specifically, in illustrated embodiment, crimping jig 120 comprises base 121, bracing frame 123 and thimble 125.Base 121 is arranged on the diapire of the stopper slot 111 of test platform 110.Bracing frame 123 passes base 121, and is parallel to the diapire setting of stopper slot 111.Bracing frame 123 can move up and down with respect to base 121, the height with adjusting support frame 123 with respect to the diapire of the stopper slot 111 of test platform 110.Thimble 125 is arranged on bracing frame 123, and perpendicular to the diapire setting of the stopper slot 111 of test platform 110, thimble 125 can butt with AMOLED display screen to be tested.
Further, the structure of thimble 125 can be selected different structures according to the difference of function, for example, in illustrated embodiment, thimble 125 is spring probe (pogo pin), the test point butt of the substrate of spring probe and AMOLED display screen to be tested, and conduct, power to AMOLED display screen by spring probe.
In other embodiments, thimble 125 is elastic, and by the substrate of elastic butt AMOLED display screen to be tested, with elastic compression joint AMOLED display screen to be tested, and AMOLED display screen to be tested is powered by peripheral hardware connector.
Further, bracing frame 123 can drive automatically.For example, in illustrated embodiment, crimping jig 120 also comprises drive unit, and drive unit is arranged on base 121, and is connected with bracing frame 123, can drive bracing frame 123 to move up and down with respect to base 121 by drive unit.
Drive unit can be telescopic cylinder, and the expansion link of telescopic cylinder is fixedly connected with bracing frame 123.Or drive unit can be motor, the driving shaft of motor is connected with bracing frame 123 by leading screw.
Certainly, bracing frame 123 also can manual actuation, and for example, in other embodiments, crimping jig 120 also comprises hand-crank, can drive bracing frame 123 to move up and down with respect to base 121 by hand-crank.
It should be noted that, in the utility model, crimping jig 120 is not limited to illustrated structure, also can adopt other structures.
Running fix support 130 is located on test platform 110, for the test probe 201 of bearing optical measurement mechanism, running fix support 130 with respect to test platform 110 slidably, the relative position with the test probe 201 that regulates optical measuring device with AMOLED display screen to be tested.
Specifically in illustrated embodiment, running fix support 130 is U-shaped support, test platform 110 also comprises two sides that are connected with end face and are oppositely arranged, each side of test platform 110 is equipped with a guide part 113, the two ends of U-shaped support are respectively equipped with a sliding part 131, and sliding part 131 along the guide part 113 of the side of test platform 110 slidably.
Further, the structure of guide part 113 can need to be designed to different structures according to difference, for example, in illustrated embodiment, the gathering sill that guide part 113 extends for being parallel to the end face of test platform 110, sliding part 131 is the slip lug of being located at the end of U-shaped support, and slip lug along gathering sill slidably.
In other embodiments, the guide rail that guide part 113 arranges for being parallel to the end face of test platform 110, sliding part 131 is the chute of being located at the end of U-shaped support, chute is along guide rail slidably.
Subconnector 140 is located on the end face of test platform 110, subconnector 140 can carry out communication with outside data processing equipment by the driving chip of AMOLED display screen to be tested and be connected, and carries out data recording with the driving chip of the AMOLED display screen to be tested.
Specifically, in illustrated embodiment, subconnector 140 is FPC(Flexible Printed CircuitBoard) connector, AMOLED display screen to be tested is pegged graft by FPC and this subconnector 140.
Data processing equipment is used for the data analysis of the chromaticity coordinates to AMOLED display screen to be tested, and the driving chip of AMOLED display screen to be tested is carried out to data recording.For example, data processing equipment can be computing machine.
Optical measuring device is arranged on running fix support 130, for measuring the chromaticity coordinates of AMOLED display screen to be tested.Optical measuring device sends the data of the chromaticity coordinates of collection to outside data processing equipment, with the data analysis to the chromaticity coordinates gathering.Specifically embodiment in, optical measuring device can be color analyzer, for example, the color analyzer of the color analyzer of CA310 type, K8 type etc.
Compared to the OTP device of traditional AMOLED display screen, above-mentioned OTP device at least has the following advantages:
(1) above-mentioned detent mechanism 100 adopts the spacing AMOLED display screen to be measured of stopper slot 111 of test platform 110, adopts crimping jig 120 to compress AMOLED display screen to be measured, to locate AMOLED display screen to be tested; And above-mentioned detent mechanism 100 adopts the relative position of test probe 201 that running fix support 130 regulates optical measuring device and AMOLED display screen to be tested, thereby guarantees accurately location of optical measurement point, minimizing personnel operation error.
(2) above-mentioned detent mechanism 100 is being located after AMOLED display screen to be tested, adopts subconnector 140 that AMOLED display screen to be tested and data processing equipment communication are coupled together, and docks thereby convenient realization is artificial, improves the efficiency of OTP;
(3) above-mentioned detent mechanism 100 adopts machinery location and the mode of manually docking, to change simple artificial or full automatic work pattern, reach the OTP object of the various dissimilar AMOLED display screens of flexible reply, to promote OTP efficiency, reduce optical measurement and burning data error, thus improving production efficiency and product quality.And the structure of above-mentioned detent mechanism 100 is simple compared with fully-automatic equipment, cost is lower.
(4) crimping jig 120 of above-mentioned detent mechanism 100 adopts the thimble 125 of spring probe as crimping AMOLED display screen to be tested, in realizing machinery location, realize with the confession of AMOLED display screen to be tested and being electrically connected, thereby further improve the efficiency of OTP.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a detent mechanism for the OTP device of AMOLED display screen, is characterized in that, comprising:
Have the test platform of end face, described end face is provided with the stopper slot for spacing AMOLED display screen to be tested;
Be located at the crimping jig on the end face of described test platform, described crimping jig and described AMOLED display screen to be tested can butts, to locate described AMOLED display screen;
Be located on described test platform, for carrying the running fix support of test probe of outside optical measuring device, described running fix support with respect to described test platform slidably, to regulate the test probe of described optical measuring device and the relative position of described AMOLED display screen to be tested; And
Be located at the subconnector on the end face of described test platform, described subconnector can carry out communication with outside data processing equipment by the driving chip of described AMOLED display screen to be tested and be connected, so that the driving chip of described AMOLED display screen to be tested is carried out to data recording.
2. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 1, is characterized in that, described crimping jig comprises:
Be arranged on the base of the diapire of described stopper slot;
Through described base and be parallel to described stopper slot diapire arrange bracing frame, support frame as described above can move up and down with respect to described base, to regulate the height of support frame as described above with respect to the diapire of described stopper slot; And
Be arranged on the thimble arranging on support frame as described above and perpendicular to the diapire of described stopper slot, described thimble and described AMOLED display screen to be tested can butts.
3. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 2, it is characterized in that, described thimble is spring probe, the test point butt of the substrate of described spring probe and described AMOLED display screen to be tested, and conduct, give described AMOLED display screen power supply by described spring probe;
Or described thimble is elastic, by the substrate of AMOLED display screen to be tested described in described elastic butt, with AMOLED display screen to be tested described in elastic compression joint, and described AMOLED display screen to be tested is powered by peripheral hardware connector.
4. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 2, it is characterized in that, described crimping jig also comprises drive unit, described drive unit is arranged on described base, and be connected with support frame as described above, can drive support frame as described above to move up and down with respect to described base by described drive unit.
5. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 4, is characterized in that, described drive unit is telescopic cylinder, and the expansion link of described telescopic cylinder is fixedly connected with support frame as described above;
Or described drive unit is motor, the driving shaft of described motor is connected with support frame as described above by leading screw.
6. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 2, is characterized in that, described crimping jig also comprises hand-crank, can drive support frame as described above to move up and down with respect to described base by described hand-crank.
7. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 1, it is characterized in that, described running fix support is U-shaped support, described test platform also comprises two sides that are connected with described end face and are oppositely arranged, each described side is equipped with a guide part, the two ends of described U-shaped support are respectively equipped with a sliding part, and described sliding part along the described guide part of described side slidably.
8. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 7, it is characterized in that, described guide part is to be parallel to the gathering sill that described end face extends, and described sliding part is the slip lug of being located at the end of described U-shaped support, and described slip lug along described gathering sill slidably;
Or described guide part is to be parallel to the guide rail that described end face arranges, described sliding part is the chute of being located at the end of described U-shaped support, and described chute along described guide rail slidably.
9. the detent mechanism of the OTP device of AMOLED display screen as claimed in claim 1, is characterized in that, described subconnector is FPC connector;
And/or described optical measuring device is color analyzer.
10. an OTP device for AMOLED display screen, is characterized in that, comprising:
Detent mechanism as described in claim 1～9 any one;
Described data processing equipment; And
Described optical measuring device, is arranged on described running fix support, for measuring the chromaticity coordinates of described AMOLED display screen to be tested;
Wherein, described optical measuring device sends the data of the chromaticity coordinates of collection to outside data processing equipment, with the data analysis to the chromaticity coordinates gathering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860011.8U CN203760047U (en) | 2013-12-24 | 2013-12-24 | OTP device and positioning mechanism of AMOLED display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860011.8U CN203760047U (en) | 2013-12-24 | 2013-12-24 | OTP device and positioning mechanism of AMOLED display screen |
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| CN203760047U true CN203760047U (en) | 2014-08-06 |
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| CN201320860011.8U Expired - Fee Related CN203760047U (en) | 2013-12-24 | 2013-12-24 | OTP device and positioning mechanism of AMOLED display screen |
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Cited By (13)
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| CN106057149A (en) * | 2016-07-13 | 2016-10-26 | 捷星显示科技（福建）有限公司 | LCD automatic adjusting white balance system and method |
| CN106969707A (en) * | 2017-04-07 | 2017-07-21 | 京东方科技集团股份有限公司 | A kind of detection means and its control method |
| CN107283501A (en) * | 2017-08-02 | 2017-10-24 | 常熟东南相互电子有限公司 | FPC punch press clamping jigs |
| CN107738454A (en) * | 2017-11-09 | 2018-02-27 | 江门市康百事电器有限公司 | A kind of bonding tool of bread producing machine |
| CN107748664A (en) * | 2017-12-08 | 2018-03-02 | 无锡隆盛科技股份有限公司 | For carrying out the servicing unit of program burn writing to the chip being welded on circuit board |
| CN108039141A (en) * | 2017-12-29 | 2018-05-15 | 广东欧珀移动通信有限公司 | The test fixture of electronic device display screen |
| CN108648673A (en) * | 2018-07-06 | 2018-10-12 | 武汉精测电子集团股份有限公司 | A kind of OTP+Demura for OLED display screen compensates equipment |
| CN108874408A (en) * | 2018-07-30 | 2018-11-23 | 江西合力泰科技有限公司 | A kind of liquid crystal display OTP burning jig |
| CN108986722A (en) * | 2018-06-27 | 2018-12-11 | 英业达(重庆)有限公司 | Screen device and method are surveyed in a kind of automation |
| CN109443701A (en) * | 2018-11-23 | 2019-03-08 | 歌尔股份有限公司 | The positioning device and control system of screen test |
| CN109801575A (en) * | 2019-03-27 | 2019-05-24 | 霸州市云谷电子科技有限公司 | The method for separating of OLED display screen and the preparation method of OLED mould group |
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| CN106057149A (en) * | 2016-07-13 | 2016-10-26 | 捷星显示科技（福建）有限公司 | LCD automatic adjusting white balance system and method |
| CN106969707A (en) * | 2017-04-07 | 2017-07-21 | 京东方科技集团股份有限公司 | A kind of detection means and its control method |
| CN107283501A (en) * | 2017-08-02 | 2017-10-24 | 常熟东南相互电子有限公司 | FPC punch press clamping jigs |
| CN107738454A (en) * | 2017-11-09 | 2018-02-27 | 江门市康百事电器有限公司 | A kind of bonding tool of bread producing machine |
| CN107738454B (en) * | 2017-11-09 | 2020-07-24 | 江门市康百事电器有限公司 | Bonding tool of bread maker |
| CN107748664A (en) * | 2017-12-08 | 2018-03-02 | 无锡隆盛科技股份有限公司 | For carrying out the servicing unit of program burn writing to the chip being welded on circuit board |
| CN108039141A (en) * | 2017-12-29 | 2018-05-15 | 广东欧珀移动通信有限公司 | The test fixture of electronic device display screen |
| CN108039141B (en) * | 2017-12-29 | 2023-09-08 | 深圳市欢太科技有限公司 | Test fixture for display screen of electronic device |
| CN108986722A (en) * | 2018-06-27 | 2018-12-11 | 英业达(重庆)有限公司 | Screen device and method are surveyed in a kind of automation |
| CN108648673A (en) * | 2018-07-06 | 2018-10-12 | 武汉精测电子集团股份有限公司 | A kind of OTP+Demura for OLED display screen compensates equipment |
| CN108648673B (en) * | 2018-07-06 | 2024-01-26 | 武汉精测电子集团股份有限公司 | OTP+demura compensation equipment for OLED display screen |
| CN108874408A (en) * | 2018-07-30 | 2018-11-23 | 江西合力泰科技有限公司 | A kind of liquid crystal display OTP burning jig |
| CN108874408B (en) * | 2018-07-30 | 2023-10-24 | 江西合力泰科技有限公司 | OTP (one time programmable) burning jig for liquid crystal display |
| CN109443701A (en) * | 2018-11-23 | 2019-03-08 | 歌尔股份有限公司 | The positioning device and control system of screen test |
| WO2020107808A1 (en) * | 2018-11-29 | 2020-06-04 | 昆山国显光电有限公司 | Auxiliary method and device for adjusting otp of display panel |
| US11600806B2 (en) | 2018-11-29 | 2023-03-07 | Kunshan Go-Visionox Opto-Electronics Co., Ltd. | Auxiliary method and device for OTP adjustment of display panel |
| CN109801575A (en) * | 2019-03-27 | 2019-05-24 | 霸州市云谷电子科技有限公司 | The method for separating of OLED display screen and the preparation method of OLED mould group |
| CN111351643A (en) * | 2020-03-31 | 2020-06-30 | 武汉天马微电子有限公司 | Optical test equipment applied to display panel |
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