CN214201989U - Embedded fingerprint sensing display device - Google Patents
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- CN214201989U CN214201989U CN202120421990.1U CN202120421990U CN214201989U CN 214201989 U CN214201989 U CN 214201989U CN 202120421990 U CN202120421990 U CN 202120421990U CN 214201989 U CN214201989 U CN 214201989U
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/141—Control of illumination
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
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Abstract
The utility model provides an embedded fingerprint sensing display device. The sensing component of the driving circuit layer senses the image light containing the fingerprint information through the sensing light hole of the color filter layer so as to generate a fingerprint sensing signal. The driving circuit can drive the liquid crystal molecules in the shielding region to rotate through the driving electrode arranged beside the sensing component so as to shield stray light around the sensing component.
Description
Technical Field
The utility model relates to a sensing device especially relates to an embedded fingerprint sensing display device.
Background
In the existing liquid crystal display electronic devices on the market, the embedded fingerprint function is not available. The fingerprint sensing module needs to be attached to the lower part or the periphery of the outer side of the display screen in an add-on (add-on) mode. Specifically, in a smart phone, a fingerprint sensing module is placed under a fingerprint sensing area below a physical function key of the smart phone or the back of a phone body to enable collection of finger fingerprint information.
In addition, in the conventional optical fingerprint sensing module, the reflected light of the finger pressed on the display panel is transmitted to the image sensor below the display panel, but the image sensor receives the ambient stray light in addition to the reflected light of the finger, so that the quality of the fingerprint image sensed by the image sensor is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an embedded fingerprint sensing display device can reach the effect of large tracts of land fingerprint sensing, the quality of improvement fingerprint sensing.
The utility model discloses an embedded fingerprint sensing display device includes colored filter layer, liquid crystal layer and drive circuit layer. The color filter layer has at least one sensing aperture. The liquid crystal layer is arranged between the color filter layer and the driving circuit layer, and the driving circuit layer comprises at least one sensing component, at least one driving electrode and a driving circuit. The sensing component is arranged corresponding to the sensing light hole, and senses the image light containing the fingerprint information through the sensing light hole so as to generate a fingerprint sensing signal. The driving electrode is arranged beside the sensing assembly. The driving circuit is coupled to the driving electrode, and drives the liquid crystal molecules in the shielding region beside the sensing assembly to rotate through the driving electrode so as to shield the stray light around the sensing assembly.
In an embodiment of the invention, the shielding region is an annular region surrounding the sensing element.
In an embodiment of the invention, the shielding region is located below a light shielding structure of the color filter layer.
In an embodiment of the present invention, the color filter layer includes a substrate, a light shielding structure and a plurality of color filter patterns. The light shielding structure is formed on the substrate and provided with a sensing light hole and a plurality of display openings. The color filter patterns are formed in the display openings.
In an embodiment of the present invention, the embedded fingerprint sensing display device further includes a backlight module disposed below the driving circuit layer.
In an embodiment of the present invention, the driving circuit layer further includes a plurality of pixel electrodes and a display driving circuit. The plurality of pixel electrodes are disposed corresponding to the plurality of display openings. The display driving circuit is arranged in the driving circuit layer and coupled with the pixel electrode, the liquid crystal molecules corresponding to the display opening are driven to rotate through the pixel electrode, and the backlight passes through the liquid crystal layer and the color filter layer to form a display image beam.
In an embodiment of the invention, the stray light includes light from the display opening.
In an embodiment of the present invention, the embedded fingerprint sensing display device further includes a cover plate disposed above the color filter layer for receiving a touch operation of a finger.
In an embodiment of the present invention, the image light is light generated by reflection of the backlight module irradiating the finger.
In an embodiment of the invention, an occupied area of the sensing aperture on the substrate is greater than 25% of an area of the substrate.
In an embodiment of the present invention, the image light is light generated by reflecting the extra illumination light by a finger.
In an embodiment of the present invention, the embedded fingerprint sensing and displaying device further includes a light filtering component formed in the sensing aperture.
Based on the foregoing, the utility model discloses sensing light hole sensing of the permeable colored filter layer of sensing element on drive circuit layer contains fingerprint information's image light to produce fingerprint sensing signal, the drive circuit permeable sets up the rotation of the liquid crystal molecule in the other drive electrode drive shielding region of sensing element, in order to shield the stray light around the sensing element. So can effectively improve the quality of fingerprint sensing, can realize large tracts of land fingerprint sensing simultaneously.
In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic cross-sectional view of an embedded fingerprint sensing display device according to an embodiment of the present invention.
Fig. 2 is a schematic top view of an embedded fingerprint sensing display device according to an embodiment of the present invention.
Fig. 3 is a schematic top view of an embedded fingerprint sensing display device according to another embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic cross-sectional view of an embedded fingerprint sensing display device according to an embodiment of the present invention. Please refer to fig. 1. The embedded fingerprint sensing display device may be, for example, a liquid crystal display device with image sensing, such as a smart phone, a tablet computer, a notebook computer …, and so on. The embedded fingerprint sensing display device comprises a cover plate CV1, a color filter layer CF1, a liquid crystal layer CRL1, a driving circuit layer CL1 and a backlight module BLM1, wherein the color filter layer CF1 is arranged between the cover plate CV1 and the liquid crystal layer CRL1, the driving circuit layer CL1 is arranged below the liquid crystal layer CRL1 and between the liquid crystal layer CRL1 and the backlight module BLM 1.
The cover CV1 can receive the touch operation of the finger f1, which can be implemented by a glass substrate, but not limited thereto. The color filter layer CF1 has a sensing aperture PH1, which allows the image light RL1 generated by the light L1 reflected by the finger F1 to enter the liquid crystal layer CRL1 and reach the driving circuit layer CL 1. The driving circuit layer CL1 may include a sensing element SA1, a driving electrode P1 and a driving circuit 102, wherein the sensing element SA1 is disposed corresponding to the sensing aperture PH1, for example, in the embodiment of fig. 1, the sensing element SA1 is disposed right below the sensing aperture PH1, and the sensing element SA1 may sense an image light containing fingerprint information through the sensing aperture PH1 to generate a fingerprint sensing signal for a rear-end circuit to perform fingerprint recognition or other applications.
The driving electrode P1 is disposed beside the sensing element LC1 and coupled to the driving circuit 102. The driving circuit 102 may apply a driving voltage to the driving electrode P1, and the tilt angle of the liquid crystal molecules in the liquid crystal layer may be changed according to the variation of the driving voltage, for example, as shown in fig. 1, the driving circuit 102 may drive the liquid crystal molecules LC1 in the shielding region BA1 to rotate through the driving electrode P1, so that they are at different angles from the liquid crystal molecules LC2 above the sensing element LC 1. By adjusting the tilt angle of the liquid crystal molecules LC1 in the shielding region BA1, the driving circuit 102 can shield the stray light from the surroundings of the sensing element LC1 or guide the stray light away from the sensing element LC1, so as to prevent the stray light from affecting the sensing result of the sensing element LC1 for sensing the image light RL1, thereby reducing the quality of fingerprint sensing.
Further, the color filter layer CF1 may include a substrate B1, and a light shielding structure BM1 and a plurality of color filter patterns formed on the substrate B1. The substrate B1 may be, for example, a glass substrate, but not limited thereto, and the light shielding structure BM1 has a sensing light hole PH1 and a plurality of color filter patterns, for example, in the embodiment of fig. 1, the color filter patterns may include a red filter pattern R, a green filter pattern G, and a blue filter pattern B, and the red filter pattern R, the green filter pattern G, and the blue filter pattern B may be formed in a plurality of display openings of the light shielding structure BM 1. The light shielding structure BM1 and the color filter pattern may be formed by a single layer or a multi-layer structure of metal, organic material, color resist, or a combination thereof, and the material of the color filter pattern may be the same as or different from that of the light shielding structure BM1, for example, the light shielding structure BM1 and the color filter pattern may be formed by overlapping a plurality of color resists. The color filter pattern is made of a single layer or a multi-layer structure of metal, organic material, color photoresist, or a combination thereof.
The shielding area BA1 may be, for example, a ring-shaped area (shown by a dotted line) surrounding the sensing element SA1 as shown in the top view of the embedded fingerprint sensing display device of fig. 2, and the shielding area BA1 may be, for example, a light shielding area (shown by a diagonal line) under the light shielding structure BM 1. This can effectively shield stray light from the liquid crystal molecules in the shielding area BA1 or guide stray light away from the sensing element LC1, for example, can shield light from the display opening beside the sensing element LC1 or guide other redundant light entering the sensing optical aperture PH1 together with the image light RL1 away from the sensing element LC1, so as to avoid affecting the sensing quality of the sensing element LC 1.
In addition, the backlight module BLM1 may be composed of, for example, a Light Emitting element, a Light guide plate, a reflective sheet and/or other optical elements, where the Light Emitting element is, for example, a Cold Cathode Fluorescent Lamp (CCFL), an Organic Light-Emitting Diode (OLED), a sub-millimeter Light-Emitting Diode (Mini LED) or a Micro Light-Emitting Diode (Micro LED), and the invention is not limited thereto.
In addition, the driving circuit layer CL1 may further include a plurality of pixel electrodes P2 and a display driving circuit 104, wherein the display driving circuit 104 is coupled to the pixel electrodes P2. The pixel electrode P2 can be disposed corresponding to the display apertures, and the display driving circuit 104 can apply a display driving voltage to the pixel electrode P2 to control the rotation of the liquid crystal molecules corresponding to each display aperture. The backlight BL1 provided by the backlight module BLM1 may be converted into a display image beam after passing through liquid crystal molecules having different tilt angles and the color filter layer CF1 to provide a display image. In the present embodiment, the image light RL1 can be, for example, light generated by reflecting the image light beam by the finger F1, but not limited thereto. In other embodiments, an additional illumination component may be disposed on the driving circuit layer CL1 to provide illumination light to the finger F1 to reflect the generated image light RL 1.
Since the embedded fingerprint sensing display device of the present embodiment embeds the sensing element LC1 into the driving circuit layer CL1, and there is no need to install a fingerprint sensing module in a plug-in manner as in the prior art, it is able to implement large-area or full-screen fingerprint sensing without increasing the volume of the embedded fingerprint sensing display device, and provide an additional space for the embedded fingerprint sensing display device to be used, for example, the embedded fingerprint sensing display device can accommodate a battery with a larger power capacity, thereby prolonging the service time of the embedded fingerprint sensing display device. In addition, since the sensing element LC1 is completed simultaneously in the process of manufacturing the driving circuit layer CL1, no additional manufacturing cost is required.
It should be noted that, in the above embodiments, the number of sensing apertures, sensing element driving electrodes, and pixel electrodes is only an exemplary embodiment, and in other embodiments, the embedded fingerprint sensing display device may include a greater number of sensing apertures, sensing element driving electrodes, and pixel electrodes. Fig. 3 is a schematic top view of an embedded fingerprint sensing display device according to another embodiment of the present invention. Referring to fig. 3, in the present embodiment, the color filter layer CF1 of the embedded fingerprint sensing display device further includes a plurality of blue light filtering components C1 and a plurality of green light filtering components C2, and one of the blue light filtering components C1 and the green light filtering components C2 may be disposed in each of the sensing optical holes PH 1. Specifically, in the present embodiment, the blue light-filtering element C1 is made of the same material as the blue light-filtering pattern B and is made of the same material as the green light-filtering pattern G, and the green light-filtering element C2 is made of the same material as the green light-filtering pattern G. In the present embodiment, the ratio of the number of the filter patterns R, G, B to the number of the sensing photo holes PH1 is 3: 1, that is, each display pixel (composed of a set of filter patterns R, G, B and the corresponding liquid crystal layer) is configured with a filter element (blue light filter element C1 or green light filter element C2). The area occupied by the sensing aperture PH1 on the substrate B1 (i.e., the area of the blue-light-filtering element C1 and the green-light-filtering element C2) is greater than 25% of the area of the substrate B1. Therefore, when the fingerprint sensing is carried out, the strong environmental light can be blocked, the noise interference is reduced, and the sensing effect is further improved. In different embodiments, the number of the green light filtering assemblies C2 may be greater than the number of the blue light filtering assemblies C1, which may further improve the effect of blocking the strong ambient light, but the present invention is not limited thereto.
In other embodiments, the blue light filtering device C1 and the green light filtering device C2 of the color filter layer CF1 are arranged regularly. For example, the blue light filtering element C1 and the green light filtering element C2 may be arranged in a checkerboard pattern, an oblique stripe pattern, or a diamond grid pattern, but the present invention is not limited thereto.
To sum up, the utility model discloses the sensing light hole sensing of the permeable colored filter layer of sensing element on drive circuit layer contains fingerprint information's image light to produce fingerprint sensing signal, the drive circuit permeable sets up the rotation of the liquid crystal molecule in the other drive electrode drive shielding region of sensing element, with the stray light around the shielding sensing element, with the quality of effectively improving fingerprint sensing. In addition, the embedded design of the sensing assembly can help to realize the miniaturization and large-area fingerprint sensing of the embedded fingerprint sensing display device, and an additional accommodating space of the embedded fingerprint sensing display device can be provided for application. In addition, since the sensing element can be completed in the process of manufacturing the driving circuit layer at the same time, the problem of additional manufacturing cost is not caused.
Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be determined by the following claims.
Claims (12)
1. An embedded fingerprint sensing display device, comprising:
the color filter layer is provided with at least one sensing light hole;
a liquid crystal layer; and
a driving circuit layer, the liquid crystal layer set up in the color filter layer with between the driving circuit layer, the driving circuit layer includes:
at least one sensing component, which is arranged corresponding to the sensing light hole and senses the image light containing the fingerprint information through the sensing light hole so as to generate a fingerprint sensing signal;
at least one driving electrode arranged beside the sensing assembly; and
and the driving circuit is coupled with the driving electrode and drives the liquid crystal molecules in the shielding area beside the sensing assembly to rotate through the driving electrode so as to shield the stray light around the sensing assembly.
2. The embedded fingerprint sensing display device of claim 1, wherein the shielded area is an annular area surrounding the sensing assembly.
3. The embedded fingerprint sensing display device of claim 2, wherein the shielding area is located under a light shielding structure under the color filter layer.
4. The embedded fingerprint sensing display device of claim 1, wherein the color filter layer comprises:
a substrate;
a light shielding structure formed on the substrate, the light shielding structure having the sensing light hole and a plurality of display openings; and
and the color filter patterns are formed in the display openings.
5. The embedded fingerprint sensing display device of claim 4, further comprising:
and the backlight module is arranged below the driving circuit layer.
6. The embedded fingerprint sensing display device of claim 5, wherein the driving circuit layer further comprises:
a plurality of pixel electrodes disposed corresponding to the plurality of display openings; and
and the display driving circuit is arranged in the driving circuit layer, is coupled with the pixel electrodes, drives the liquid crystal molecules corresponding to the display openings to rotate through the pixel electrodes, and forms a display image beam by the backlight passing through the liquid crystal layer and the color filter layer.
7. The embedded fingerprint sensing display device of claim 4, wherein the stray light comprises light from the plurality of display openings.
8. The embedded fingerprint sensing display device of claim 4, further comprising:
and the cover plate is arranged above the color filter layer and used for receiving touch operation of fingers.
9. The embedded fingerprint sensing display device of claim 5, wherein the image light is light generated by the backlight module illuminating a finger.
10. The embedded fingerprint sensing display device of claim 4, wherein an area occupied by the plurality of sensing lightholes on the substrate is greater than 25% of an area of the substrate.
11. The embedded fingerprint sensing display device of claim 1, wherein the image light is light generated by additional illumination light reflected by the finger.
12. The embedded fingerprint sensing display device of claim 1, further comprising a filter component formed in the sensing aperture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063060612P | 2020-08-03 | 2020-08-03 | |
| US63/060,612 | 2020-08-03 |
Publications (1)
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| CN214201989U true CN214201989U (en) | 2021-09-14 |
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| CN202120380804.4U Active CN214202002U (en) | 2020-08-03 | 2021-02-19 | Display device with fingerprint sensing function |
| CN202120386207.2U Active CN214201988U (en) | 2020-08-03 | 2021-02-19 | Display device with fingerprint sensing function |
| CN202120401503.5U Active CN215599692U (en) | 2020-08-03 | 2021-02-23 | Display device with fingerprint sensing function |
| CN202120421990.1U Active CN214201989U (en) | 2020-08-03 | 2021-02-25 | Embedded fingerprint sensing display device |
| CN202110661424.2A Active CN113364992B (en) | 2020-08-03 | 2021-06-15 | Image sensing device and exposure time adjusting method thereof |
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| CN202120380804.4U Active CN214202002U (en) | 2020-08-03 | 2021-02-19 | Display device with fingerprint sensing function |
| CN202120386207.2U Active CN214201988U (en) | 2020-08-03 | 2021-02-19 | Display device with fingerprint sensing function |
| CN202120401503.5U Active CN215599692U (en) | 2020-08-03 | 2021-02-23 | Display device with fingerprint sensing function |
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| CN202110661424.2A Active CN113364992B (en) | 2020-08-03 | 2021-06-15 | Image sensing device and exposure time adjusting method thereof |
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| KR (5) | KR20220000365U (en) |
| CN (5) | CN214202002U (en) |
| TW (4) | TWM613990U (en) |
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| TWI777742B (en) * | 2021-05-18 | 2022-09-11 | 友達光電股份有限公司 | Fingerprint recognition device |
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| US6943840B1 (en) * | 1999-10-14 | 2005-09-13 | Canon Kabushiki Kaisha | Image sensing apparatus executing exposure control using object luminance information |
| JP4105957B2 (en) * | 2002-03-12 | 2008-06-25 | カシオ計算機株式会社 | Imaging apparatus and imaging method |
| US7548270B2 (en) * | 2005-09-08 | 2009-06-16 | Delphi Technologies, Inc. | Method of exposure control for an imaging system |
| JP2007312112A (en) * | 2006-05-18 | 2007-11-29 | Konica Minolta Holdings Inc | Imaging apparatus |
| CN101359148B (en) * | 2007-08-03 | 2011-04-06 | 深圳艾科创新微电子有限公司 | Method for automatic exposure regulation and control system |
| CN101399924B (en) * | 2007-09-25 | 2010-05-19 | 展讯通信（上海）有限公司 | Automatic exposure method and device based on brightness histogram |
| CN101262567B (en) * | 2008-04-07 | 2010-12-08 | 北京中星微电子有限公司 | Automatic exposure method and device |
| JP2014220762A (en) * | 2013-05-10 | 2014-11-20 | パナソニック株式会社 | Imaging apparatus |
| CN102801920A (en) * | 2012-07-25 | 2012-11-28 | 中国科学院长春光学精密机械与物理研究所 | Sensorless continuous automatic exposure time adjusting and controlling device of camera |
| CN105338235B (en) * | 2014-07-28 | 2018-11-20 | 华为技术有限公司 | A kind of automatic aperture adjusting method and device |
| CN104184958B (en) * | 2014-09-17 | 2017-07-11 | 中国科学院光电技术研究所 | Automatic exposure control method and device based on FPGA (field programmable Gate array) and suitable for space detection imaging |
| CN104184957B (en) * | 2014-09-17 | 2017-04-26 | 中国科学院光电技术研究所 | Automatic exposure control method based on self-adaptive predictive image average brightness and suitable for space detection imaging |
| CN105979162B (en) * | 2016-07-21 | 2019-03-29 | 凌云光技术集团有限责任公司 | A kind of the automatic exposure method of adjustment and device of expansible dynamic image |
| EP3516862A4 (en) * | 2016-10-26 | 2020-01-22 | Zhejiang Dahua Technology Co., Ltd | Systems and methods for exposure control |
| CN106657803B (en) * | 2016-12-26 | 2019-05-07 | 中国科学院长春光学精密机械与物理研究所 | Electro-optic theodolite high speed camera automatic explosion method |
| CN106982333B (en) * | 2017-05-12 | 2020-03-27 | 深圳怡化电脑股份有限公司 | Method, device and equipment for quickly correcting image sensor |
| CN109819172B (en) * | 2017-11-21 | 2021-03-19 | 展讯通信（上海）有限公司 | Automatic exposure method and system |
| CN108551555B (en) * | 2018-05-16 | 2019-12-31 | 中国科学院西安光学精密机械研究所 | Automatic exposure method of industrial camera using CMOS detector |
| CN111064902B (en) * | 2019-12-27 | 2021-05-18 | 重庆紫光华山智安科技有限公司 | Aperture control method and device and exposure control method |
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2021
- 2021-02-19 TW TW110201835U patent/TWM613990U/en not_active IP Right Cessation
- 2021-02-19 CN CN202120380804.4U patent/CN214202002U/en active Active
- 2021-02-19 CN CN202120386207.2U patent/CN214201988U/en active Active
- 2021-02-19 TW TW110201851U patent/TWM611952U/en not_active IP Right Cessation
- 2021-02-23 CN CN202120401503.5U patent/CN215599692U/en active Active
- 2021-02-23 TW TW110201941U patent/TWM613999U/en not_active IP Right Cessation
- 2021-02-25 TW TW110202036U patent/TWM612856U/en not_active IP Right Cessation
- 2021-02-25 CN CN202120421990.1U patent/CN214201989U/en active Active
- 2021-03-24 KR KR2020210000916U patent/KR20220000365U/en not_active Application Discontinuation
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- 2021-04-08 KR KR2020210001110U patent/KR20220000369U/en not_active Application Discontinuation
- 2021-06-15 CN CN202110661424.2A patent/CN113364992B/en active Active
- 2021-07-23 KR KR1020210097371A patent/KR20220016783A/en unknown
Also Published As
| Publication number | Publication date |
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| TWM612856U (en) | 2021-06-01 |
| KR20220000365U (en) | 2022-02-10 |
| TWM613990U (en) | 2021-07-01 |
| CN215599692U (en) | 2022-01-21 |
| KR20220000367U (en) | 2022-02-10 |
| CN214202002U (en) | 2021-09-14 |
| KR20220000369U (en) | 2022-02-10 |
| TWM613999U (en) | 2021-07-01 |
| CN113364992A (en) | 2021-09-07 |
| CN214201988U (en) | 2021-09-14 |
| KR20220000366U (en) | 2022-02-10 |
| KR20220016783A (en) | 2022-02-10 |
| TWM611952U (en) | 2021-05-11 |
| CN113364992B (en) | 2023-10-17 |
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