CN109934138B - Display device and mobile terminal - Google Patents
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- CN109934138B CN109934138B CN201910153435.2A CN201910153435A CN109934138B CN 109934138 B CN109934138 B CN 109934138B CN 201910153435 A CN201910153435 A CN 201910153435A CN 109934138 B CN109934138 B CN 109934138B
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Abstract
The invention provides a display device and a mobile terminal, wherein the display device comprises a display panel, a fingerprint module, a cover plate and a concave lens film arranged between the cover plate and the display panel; the display panel comprises a matrix type micropore array layer, a plurality of imaging through holes are formed in the matrix type micropore array layer, a convex lens film is arranged between the concave lens film and the matrix type micropore array layer, and the distance between the concave lens film and the convex lens film is larger than the distance between the convex lens film and the matrix type micropore array layer; the concave lens film comprises a micro-concave lens array and a first shading layer filled between adjacent micro-concave lenses, and the convex lens film comprises a micro-convex lens array and a second shading layer filled between adjacent micro-convex lenses; each micro concave lens, each micro convex lens and each imaging through hole are opposite to each other. The display device increases the incidence range of the fingerprint reflected light by arranging the concave lens film and the convex lens film, and improves the authenticity and the integrity of the fingerprint image.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display device and a mobile terminal.
Background
In recent years, large-screen display devices are more and more popular with consumers, and the screen occupation ratio can be effectively improved by using the under-screen fingerprint technology under the normal condition. The existing under-screen fingerprint identification is that an imaging through hole is additionally arranged on a display panel, and a fingerprint image is presented on a fingerprint sensor by utilizing the principle of small-hole imaging, so that the under-screen fingerprint identification is realized.
In the prior art, a display screen with a function of identifying fingerprints under the screen is usually provided with an imaging through hole on a thin film transistor layer or a source/drain electrode layer of the display panel, and light reflected by fingerprints passes through the imaging through hole to be projected on a fingerprint module by utilizing the principle of small-hole imaging, so that the fingerprint image is collected. However, because this kind of structure only enables the light of fingerprint center reflection to pass through the aperture, and the light of fingerprint edge reflection then is difficult to pass through the aperture, therefore the marginal information of fingerprint is difficult to gather to the fingerprint module for the scope of fingerprint collection is less, has reduced the authenticity and the integrality of fingerprint image.
Disclosure of Invention
The embodiment of the invention provides a display device and a mobile terminal, which are used for enlarging the fingerprint acquisition range and improving the authenticity and integrity of a fingerprint image.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in one aspect, an embodiment of the present invention provides a display device, including a display panel, a fingerprint module disposed on a back surface of the display panel, a cover plate disposed on a front surface of the display panel, and a concave lens film disposed between the cover plate and the display panel; the display panel comprises a matrix type micropore array layer, a plurality of imaging through holes are formed in the matrix type micropore array layer, a convex lens film is arranged between the concave lens film and the matrix type micropore array layer, and the distance between the concave lens film and the convex lens film is larger than the distance between the convex lens film and the matrix type micropore array layer; the concave lens film comprises a micro-concave lens array and a first light shielding layer filled between adjacent micro-concave lenses, and the convex lens film comprises a micro-convex lens array and a second light shielding layer filled between adjacent micro-convex lenses; each micro concave lens, each micro convex lens and each imaging through hole are opposite to each other.
Compared with the prior art, the display device provided by the embodiment of the invention has the following advantages:
according to the display device provided by the embodiment of the invention, the concave lens film is arranged, so that the light reflected by the center of the fingerprint and the light reflected by the edge of the fingerprint can be incident on the convex lens film through the refraction of the micro concave lens, the range of the fingerprint image collected by the fingerprint module is enlarged, the micro convex lens can converge the light, the definition and the accuracy of fingerprint collection are enhanced, and the authenticity and the integrity of the fingerprint collection are improved.
As an improvement of the display device according to the embodiment of the present invention, the focal length of the micro concave lens is the same as the focal length of the micro convex lens.
As an improvement of the display device in the embodiment of the invention, the distance between the micro concave lens and the micro convex lens opposite to the micro concave lens is larger than the focal length, and the distance between the micro convex lens and the imaging through hole opposite to the micro convex lens is smaller than the focal length.
As an improvement of the display device according to the embodiment of the present invention, the display device further includes a polarizer, and the polarizer is located between the cover plate and the display panel.
As an improvement of the display device according to the embodiment of the invention, the concave lens film is located between the cover plate and the polarizer.
As an improvement of the display device according to the embodiment of the invention, the concave lens film is located between the polarizer and the display panel.
As an improvement of the display device according to the embodiment of the present invention, the concave lens film is bonded to the polarizer and the display panel respectively through an optical adhesive.
As an improvement of the display device according to the embodiment of the present invention, the lenticular film is located inside the display panel.
As an improvement of the display device of the embodiment of the invention, the diameter of the imaging through hole is larger than or equal to 620 nm.
On the other hand, the embodiment of the invention also provides a mobile terminal which comprises the display device.
The mobile terminal provided by the embodiment of the invention comprises the display device, so that the mobile terminal also has the same advantages as those of the display device, and the description is omitted.
In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the display device and the mobile terminal provided by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to illustrate embodiments of the invention or prior art solutions more clearly, the drawings that are needed in the description of the embodiments of the invention or prior art will be briefly described below, it being understood that the drawings in the following description are only some embodiments of the invention, and that these drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but rather to illustrate it to those skilled in the art by reference to specific embodiments, and that other drawings may be obtained by those skilled in the art without inventive effort.
Fig. 1 is a first schematic structural diagram of a display device according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the display device of FIG. 1;
fig. 3 is a schematic structural diagram of a display device according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display device according to a first embodiment of the present invention;
fig. 5 is a fourth schematic structural diagram of a display device according to a first embodiment of the present invention.
Description of reference numerals:
10-a display panel;
11-a substrate base plate;
12-a matrix-type microporous array layer;
13-imaging through holes;
20-cover plate;
30-concave lens film;
31-a micro-concave lens;
a 40-convex lens film;
41-micro convex lens;
50-optical glue;
60-a polarizer;
70-fingerprint module;
80-light.
Detailed Description
In display device, the principle that the screen fingerprint adopted the aperture formation of image to carry out the collection to the fingerprint usually under the screen, but because the laminating of finger when on the screen, the light of being reflected by fingerprint edge receives blockking easily and is difficult to incide on the fingerprint module to lead to the fingerprint module to receive the light of fingerprint edge reflection, caused the marginal unclear or even disappearance of the fingerprint image of gathering, makeed the authenticity and the integrality of fingerprint image relatively poor.
In view of the above drawbacks, an embodiment of the present invention provides an improved technical solution, in which the display device includes a cover plate, a concave lens film, a convex lens film, a display panel, and a fingerprint module, the concave lens film includes a plurality of micro-concave lenses, the convex lens film includes a plurality of micro-convex lenses, wherein the micro-concave lenses are used for refracting fingerprint reflected light, so that light reflected by an edge of a fingerprint and light reflected by a center of the fingerprint can both be refracted by the micro-concave lenses and then pass through the micro-convex lenses, thereby increasing a range of light reflected by the fingerprint to enter; the micro convex lens is used for converging light refracted by the micro concave lens into a thin light beam, so that definition and accuracy of the light beam when the light beam is projected on the fingerprint module are enhanced.
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, fig. 2 and fig. 4, fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present invention; FIG. 2 is a schematic view of the display device shown in FIG. 1 illustrating light incidence. The display device provided by the embodiment of the invention comprises a display panel 10, a fingerprint module 70 arranged on the back of the display panel 10, a cover plate 20 arranged on the front of the display panel 10, and a concave lens film 30 arranged between the cover plate 20 and the display panel 10; the display panel 10 comprises a matrix type micropore array layer 12, a plurality of imaging through holes 13 are formed in the matrix type micropore array layer 12, a convex lens film 40 is arranged between a concave lens film 30 and the matrix type micropore array layer 12, and the distance between the concave lens film 30 and the convex lens film 40 is larger than the distance between the convex lens film 40 and the matrix type micropore array layer 12; the concave lens film 30 includes a micro-concave lens array and a first light-shielding layer filled between adjacent micro-concave lenses 31, and the convex lens film 40 includes a micro-convex lens array and a second light-shielding layer filled between adjacent micro-convex lenses 41; the micro concave lenses 31, the micro convex lenses 41 and the imaging through holes 13 are opposite to each other.
In this embodiment, the cover plate 20 is disposed on the front surface of the display panel 10, and the fingerprint module 70 is disposed on the back surface of the display panel 10, where it should be noted that the front surface refers to a light emitting surface of the display panel 10, and the back surface refers to a backlight surface of the display panel 10 in this embodiment. The display panel 10 includes a substrate 11 and a matrix-type micro-pore array layer 12 located above the substrate 11. The substrate 11 may be a flexible plastic substrate, a glass substrate, or a quartz substrate, and the material of the substrate 11 is not limited in the embodiments of the present invention, and the substrate 11 is located at the bottom layer of the display panel 10 in the embodiments according to practical situations, and the fingerprint module 70 is disposed on the back surface of the substrate 11.
Matrix micropore array layer 12 includes a plurality of formation of image through-holes 13 that are the array and arrange, and convex lens membrane 40 is located between concave lens membrane 30 and the matrix micropore array layer 12, and the distance between concave lens membrane 30 and the convex lens membrane 40 is greater than the distance between convex lens membrane 40 and the matrix micropore array layer 12 in this embodiment, and the formation of aperture formation of image has been guaranteed in such setting. Specifically, the concave lens film 30 includes a plurality of micro-concave lenses 31, the plurality of micro-concave lenses 31 are distributed in an array in the concave lens film 30, and a light shielding material is filled between adjacent micro-concave lenses 31 to form a first light shielding layer; the convex lens film 40 includes a plurality of micro convex lenses 41, the plurality of micro convex lenses 41 are distributed in the convex lens film 40 in an array, and a light shielding material is filled between adjacent micro convex lenses 41 to form a second light shielding layer. The light shield is made of opaque materials such as metal, and the first light shield layer and the second light shield layer are respectively doped with materials for absorbing light such as benzidine.
On the basis of the above embodiment, each micro concave lens 31, each micro convex lens 41 and each imaging through hole 13 are directly opposite to each other, that is, each micro concave lens 31 corresponds to one micro convex lens 41 and one imaging through hole 13, and each group of corresponding micro concave lens 31, micro convex lens 41 and imaging through hole 13 are coaxially arranged. When the fingerprint collection device is used, light reflected by finger fingerprints passes through the micro concave lens 31 and then passes through the micro convex lens 41 to be gathered, then passes through the imaging through hole 13 on the matrix type micropore array layer 12, finally forms images on the fingerprint module 70, and fingerprint collection is completed.
It should be noted that in this embodiment, the display panel 10 further includes a plurality of silicon oxide layers or silicon nitride layers, and the display panel 10 further includes a plurality of silicon oxide layers as an example in this embodiment. Multilayer silica layer sets up respectively at matrix micropore array layer 12 front and back, and silica layer is used for bearing matrix micropore array layer 12, and silica layer is stratum lucidum structure in this embodiment, consequently lies in the silica layer of matrix micropore array layer 12 top and can guarantee that light passes through, makes it pass imaging through-hole 13 in matrix micropore array layer 12.
Taking the display device shown in fig. 1 as an example, fig. 1 shows a structure of a possible display device, the display device shown in fig. 1 includes a display panel 10, a convex lens film 40 disposed above the display panel 10, a concave lens film 30 disposed above the convex lens film 40, and a cover plate 20, the display panel 10 includes a substrate 11 at the bottom, and a matrix-type micropore array layer 12 disposed above the substrate 11. Accordingly, fig. 2 shows the path of light incident on the display device of fig. 1.
When the fingerprint collecting device is used, a user finger is in contact with the cover plate 20, as shown in fig. 2, light 80 reflected by the finger fingerprint passes through the micro-concave lens array on the concave lens film 30 and then passes through the micro-convex lens array on the convex lens film 40 to be converged, then passes through the imaging through hole 13 on the matrix type micropore array layer 12, finally forms an image on the fingerprint module 70, and fingerprint collection is completed. In the process of fingerprint collection, due to the arrangement of the micro-concave lens array on the concave lens film 30, the light reflected by the edge of the fingerprint of the finger can be refracted by the micro-concave lens 31 and then passes through the micro-convex lens 41, so that the entering range of the light 80 reflected by the fingerprint is enlarged; because the setting of the convex lens array on the convex lens membrane 40, make the light refracted through the concave lens 31 can assemble into thinner light beam after passing through convex lens 41, guarantee that it can pass through imaging through-hole 13, and then definition and the degree of accuracy when having strengthened the light beam and throwing on fingerprint module 70.
In summary, in the display device provided in the first embodiment of the present invention, by arranging the concave lens film 30, both the light reflected by the center of the fingerprint and the light reflected by the edge of the fingerprint can be incident on the convex lens film 40 through the refraction of the micro concave lens 31, so that the range of the fingerprint image collected by the fingerprint module 70 is enlarged, the micro convex lens 41 can converge the light, the definition and accuracy of fingerprint collection are enhanced, and the authenticity and integrity of fingerprint collection are improved.
Further, in one possible implementation, the focal length of the micro-concave lens 31 is the same as the focal length of the micro-convex lens 41. On the basis of the above embodiment, the micro-concave lens 31 is used for refracting the light reflected by the fingerprint, and increasing the range of the incident light so that the light reflected by the fingerprint edge can be incident smoothly; the micro convex lens 41 is used for refracting the light refracted by the micro concave lens 31, so that the light is converged into a thinner light beam, and clear imaging is performed on the fingerprint module 70 after the light passes through the imaging through hole 13 in the matrix type micropore array layer 12. In this embodiment, the focal length of the concave lens 31 is the same as the focal length of the convex lens 41, as shown in fig. 2, the light refracted by the concave lens 31 perpendicularly enters the convex lens 41, and then converges by the refraction of the convex lens 41, the same focal length setting in this embodiment facilitates the setting of the distance between the concave lens 31, the convex lens 41 and the imaging through hole 13 in the display device, and simultaneously ensures that the light can smoothly pass through the display device and image on the fingerprint module 70.
Further, on the basis of the above embodiment, the distance between the micro concave lens 31 and the micro convex lens 41 facing thereto is larger than the focal length, and the distance between the micro convex lens 41 and the imaging through hole 13 facing thereto is smaller than the focal length. It should be noted that, in the present embodiment, the distance between the micro concave lens 31 and the micro convex lens 41 directly opposite thereto refers to the distance between the center of the micro concave lens 31 and the center of the micro convex lens 41; the distance between the micro-convex lens 41 and the imaging through hole 13 facing thereto refers to the distance between the center of the micro-convex lens 41 and the center of the imaging through hole 13. Specifically, when the focal length of the micro concave lens 31 is the same as that of the micro convex lens 41, the distance between the micro concave lens 31 and the micro convex lens 41 is greater than the focal length, and the focal length is greater than the distance between the micro convex lens 41 and the imaging through hole 13, so that the small hole imaging is ensured, and the fingerprint image can be clearly and accurately presented on the fingerprint module 70.
Further, in a preferred embodiment, the display device further includes a polarizer 60, and the polarizer 60 is located between the cover plate 20 and the display panel 10. In the present embodiment, the polarizer 60 is disposed between the cover plate 20 and the display panel 10, and on the basis of the above embodiment, the concave lens film 30 is disposed between the cover plate 20 and the display panel 10. Fig. 1 and 3 show the relative positions of two types of concave lens films 30 and polarizers 60, respectively, in this embodiment, the polarizers 60 are used to separate light rays with polarized components, and the polarizers 60 are arranged to dissipate reflected light.
Further, in one possible implementation, the concave lens film 30 is located between the cover plate 20 and the polarizer 60. On the basis of the above-described manner, as shown in fig. 1, the cover plate 20, the concave lens film 30, the polarizer 60, and the display panel 10 are sequentially stacked. In this embodiment, the concave lens film 30 is located between the cover plate 20 and the polarizer 60, the optical glue 50 is disposed between the cover plate 20 and the concave lens film 30, and the optical glue 50 is used for bonding the cover plate 20 and the concave lens film 30; an optical adhesive 50 is disposed between the concave lens film 30 and the polarizer 60, and the optical adhesive 50 is used for bonding the concave lens film 30 and the polarizer 60. In addition, in addition to the above embodiments, the lenticular film 40 may be disposed between the polarizer 60 and the display panel 10, or may be disposed in the display panel 10. As shown in fig. 4, the convex lens film 40 is located above the display panel 10, and the convex lens film 40 and the display panel 10 are bonded by the optical adhesive 50; as shown in fig. 5, the convex lens film 40 is disposed in the display panel 10, and the convex lens film 40 is located above the matrix type micro-pore array layer 12.
In another possible implementation, the concave lens film 30 is located between the polarizer 60 and the display panel 10. On the basis of the above-described manner, as shown in fig. 3, the cover plate 20, the polarizer 60, the concave lens film 30, and the display panel 10 are sequentially stacked. In this embodiment, the concave lens film 30 is located between the polarizer 60 and the display panel 10, the optical glue 50 is disposed between the polarizer 60 and the concave lens film 30, the optical glue 50 is used for bonding the polarizer 60 and the concave lens film 30, the optical glue 50 is disposed between the concave lens film 30 and the upper surface of the display panel 10, and the optical glue 50 is used for bonding the concave lens film 30 and the display panel 10. In addition, in the above embodiment, the convex lens film 40 may be provided between the concave lens film 30 and the display panel 10, or may be provided in the display panel 10. When the convex lens film 40 is disposed between the concave lens film 30 and the display panel 10, the concave lens film 30 and the convex lens film 40 may be bonded by the optical glue 50, and a silicon oxide layer or a silicon nitride layer may be further disposed between the concave lens film 30 and the convex lens film 40.
Further, in one possible implementation, the concave lens film 30 is adhered to the polarizer 60 and the display panel 10 by the optical glue 50. Specifically, in the present embodiment, the concave lens film 30 is located between the polarizer 60 and the display panel 10, and the convex lens film 40 is located in the display panel 10. The provision of the optical glue 50 ensures the reliability of the connection between the concave lens film 30 and the polarizer 60 and the display panel 10, respectively.
Further, in one possible implementation, the lenticular film 40 is located within the display panel 10. In the present embodiment, the convex lens film 40 is disposed in the display panel 10, specifically, the display panel 10 includes a substrate 11, a matrix-type micro-pore array layer 12, and a convex lens film 40, which are sequentially stacked, and each micro-convex lens 41 on the convex lens film 40 corresponds to one imaging through hole 13. The lenticular film 40 and other adjacent layer structures may be bonded together using an optical glue 50. In the present embodiment, the convex lens film 40 is disposed in the display panel 10, so that the structure is simple and the manufacturing is convenient.
Further, in a preferred embodiment, the diameter of the imaging via 13 is greater than or equal to 620 nm. Specifically, imaging through holes 13 in matrix type micropore array layer 12 correspond to convex micro lenses 41 and concave micro lenses 31 one by one, and the diameter of imaging through holes 13 is greater than or equal to the wavelength of red light, i.e. the diameter of imaging through holes 13 is greater than or equal to 620nm, and such setting ensures that light can pass through imaging through holes 13, and ensures that subsequent fingerprint images can be collected by fingerprint module 70.
Example two
The mobile terminal provided in the second embodiment of the present invention includes the display device provided in the first embodiment, wherein the structure, function, and implementation of the display device may refer to the detailed description in the foregoing embodiments, and are not repeated herein. The mobile terminal provided by this embodiment may be any device with a display function, including a display device, such as a mobile phone, a tablet computer, a smart watch, an electronic book, a navigator, a television, and a digital camera. The mobile terminal provided in this embodiment also has the same advantages as implementing a provided display device, and is not described herein again.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A display device is characterized by comprising a display panel, a fingerprint module arranged on the back of the display panel, a cover plate arranged on the front of the display panel, and a concave lens film arranged between the cover plate and the display panel;
the display panel comprises a matrix type micropore array layer, a plurality of imaging through holes are formed in the matrix type micropore array layer, a convex lens film is arranged between the concave lens film and the matrix type micropore array layer, and the distance between the concave lens film and the convex lens film is larger than the distance between the convex lens film and the matrix type micropore array layer;
the concave lens film comprises a micro-concave lens array and a first light shielding layer filled between adjacent micro-concave lenses, and the convex lens film comprises a micro-convex lens array and a second light shielding layer filled between adjacent micro-convex lenses;
each micro concave lens, each micro convex lens and each imaging through hole are opposite to each other;
the focal length of the micro-concave lens is the same as that of the micro-convex lens, the distance between the micro-concave lens and the micro-convex lens opposite to the micro-concave lens is larger than the focal length, and the distance between the micro-convex lens and the imaging through hole opposite to the micro-convex lens is smaller than the focal length.
2. The display device of claim 1, further comprising a polarizer positioned between the cover plate and the display panel.
3. The display device according to claim 2, wherein the concave lens film is located between the cover plate and the polarizer.
4. The display device according to claim 2, wherein the concave lens film is located between the polarizer and the display panel.
5. The display device according to claim 4, wherein the concave lens film is bonded to the polarizer and the display panel by an optical adhesive, respectively.
6. The display device according to claim 1, wherein the lenticular film is located within the display panel.
7. The display device of claim 1, wherein the imaging via has a diameter greater than or equal to 620 nm.
8. A mobile terminal characterized by comprising a display device according to any one of claims 1 to 7.
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| CN112863326B (en) * | 2019-11-12 | 2022-12-09 | Oppo广东移动通信有限公司 | Transparent screen, manufacturing method of transparent screen and mobile terminal |
| CN110991323B (en) * | 2019-11-29 | 2022-11-01 | 昆山国显光电有限公司 | Display panel and display device |
| CN112989885A (en) | 2019-12-16 | 2021-06-18 | 北京小米移动软件有限公司 | Display panel, display screen, terminal equipment and manufacturing method of display panel |
| CN111967411B (en) * | 2020-08-21 | 2024-02-02 | 合肥维信诺科技有限公司 | Display device |
| CN113780089A (en) * | 2021-08-11 | 2021-12-10 | 云谷（固安）科技有限公司 | Display device |
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Application publication date: 20190625 Assignee: Yungu (Gu'an) Technology Co., Ltd.|Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd Assignor: Kunshan Guo Xian Photoelectric Co., Ltd. Contract record no.: X2019990000156 Denomination of invention: Display method, display device and mobile terminal License type: Common License Record date: 20191030 |
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Effective date of registration: 20191213 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Applicant after: Guangzhou Guoxian Technology Co., Ltd Address before: 215300, No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, 4 Applicant before: Kunshan Guo Xian Photoelectric Co., Ltd. |
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