CN113890908B - Electronic equipment - Google Patents
Electronic equipment Download PDFInfo
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- CN113890908B CN113890908B CN202010627543.1A CN202010627543A CN113890908B CN 113890908 B CN113890908 B CN 113890908B CN 202010627543 A CN202010627543 A CN 202010627543A CN 113890908 B CN113890908 B CN 113890908B
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- Prior art keywords
- light
- light guide
- frame
- electronic device
- injection molding
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- 238000001746 injection moulding Methods 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 14
- 238000001514 detection method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses electronic equipment includes: the frame at least comprises an injection molding structure; the light guide body and the injection molding structure are of an integrated structure, the light guide body comprises a first light guide part, the first light guide part comprises a first light inlet part and a first light outlet part, the first light outlet part is connected with the first light inlet part, the first light inlet part is embedded into the injection molding structure, the first light outlet part is positioned at the inner side of the frame, and the first light outlet part is provided with a light outlet surface; the light sensor is arranged opposite to the light emitting surface of the first light emitting part. The electronic equipment can reduce the black edge width of the electronic equipment.
Description
Technical Field
The application relates to the technical field of electronics, in particular to electronic equipment.
Background
With the continuous development of electronic technology, intelligent devices such as mobile phones or tablet computers have become common electronic devices, and demands of users for the electronic devices are gradually increased, and particularly, full-screen devices are gradually becoming mainstream.
In order to realize automatic adjustment of screen brightness, a light sensor is required to be arranged inside the electronic device, and ambient light is received through the light sensor, so that screen backlight is automatically adjusted according to the ambient light intensity. Since the size of the existing light sensor cannot be further reduced at the present stage, the light sensor needs to be reasonably arranged.
In the prior art, many light sensing devices are placed below a screen, and because the light transmittance of the screen is low, the sensitivity and light sensing intensity performance of light sensing adjustment are greatly affected, so that the user experience is poor.
In the prior art, a light sensor is arranged at a narrow slit between a screen and a middle frame of an electronic device, and a certain black edge width is reserved to ensure light sensitivity and light intensity, which can lead to a larger black edge width at the slit or Liu Haibing, so that the attractiveness of the device is affected.
How to further reduce the width of the black edge and the width of the electronic equipment on the premise of ensuring the sensitivity of the light sensor is a problem to be solved at present.
Disclosure of Invention
In view of this, the present application provides an electronic device to solve the problem that the black side width of the existing electronic device is larger.
The application provides an electronic equipment, include: the frame at least comprises an injection molding structure; the light guide body and the injection molding structure are of an integrated structure, the light guide body comprises a first light guide part, the first light guide part comprises a first light inlet part and a first light outlet part, the first light outlet part is connected with the first light inlet part, the first light inlet part is embedded into the injection molding structure, the first light outlet part is positioned at the inner side of the frame, and the first light outlet part is provided with a light outlet surface; the light sensor is arranged opposite to the light emitting surface of the first light emitting part.
Optionally, the method further comprises: the screen assembly comprises a display screen and a cover plate positioned above the display screen, and the edge of the cover plate is connected with the edge of the frame; the light guide body is located between the display screen and the frame, the light inlet surface of the first light inlet part faces the cover plate, and the light outlet surface of the first light outlet part faces away from the cover plate.
Optionally, the method further comprises: the fixing plate is positioned in the inner side area of the frame, and the edge of the fixing plate is fixed on the injection molding structure; the first light emitting part is embedded into the fixing plate, and the light guide body, the injection molding structure and the fixing plate are of an integrated structure.
Optionally, a light blocking layer is disposed on a surface of the side wall of the light guide body facing the display screen.
Optionally, the light blocking layer includes at least one of a light absorbing layer or a light reflecting layer.
Optionally, the frame includes metal frame, the injection molding structure is the injection molding frame that is located metal frame surface, the injection molding frame is used for being connected with the apron edge of screen assembly.
Optionally, the light guide further includes: the second light guide part and the injection molding structure are of an integrated structure.
Optionally, the method further comprises: and the infrared emitter is arranged opposite to the light inlet surface of the second light guide part.
Optionally, the first light guiding portion and the second light guiding portion are connected through a light guiding beam.
Optionally, the second light guiding part includes a second light inlet part and a second light outlet part, and the second light outlet part is connected with the second light inlet part; the light emergent surface of the second light emergent part faces the cover plate; the second light emitting part is embedded into the injection molding structure, and the light inlet surface of the second light inlet part is opposite to the infrared emitter.
Optionally, the first light inlet part of the first light guide part and the second light outlet part of the second light guide part are connected through a light guide beam.
The injection molding structure integrated into one piece of the inside light guide body of electronic equipment and frame of this application, part embedding in the frame, thereby reduce the display screen that the light guide body occupy with space between the frame, and then can reduce the black limit width of screen assembly. And because the light guide body and the injection structure are integrally formed, the assembly is not needed, the implementation mode is simpler, and the assembly of the electronic equipment is easier to realize.
Further, the side wall surface of the light guide body facing one side of the screen is provided with a light blocking layer, so that screen light can be prevented from entering the light guide body and is received by the light sensor, the problem of screen light leakage can be solved, and the accuracy of automatic backlight adjustment is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a frame structure of an electronic device according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a partial structure of a frame of an electronic device according to an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of an embodiment of the present invention;
fig. 5a to 5c are schematic structural views of a light guide body according to an embodiment of the present invention.
Detailed Description
As described in the background art, the black edge of the prior art electronic device is wider, affecting the appearance of the device.
The invention provides a new electronic device, which can further reduce the black edge width of the electronic device and improve the screen occupation ratio and the aesthetic property of the device.
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. The various embodiments described below and their technical features can be combined with each other without conflict.
In an embodiment of the present invention, the electronic device may be a device having a screen component, such as a mobile phone, a tablet computer, an electronic reader, a notebook computer, or a wearable device.
Referring to fig. 1, a side view of an electronic device according to an embodiment of the invention is shown.
The electronic device comprises a frame 100, wherein the frame 100 is a frame of the electronic device along the thickness direction. The electronic device further includes a screen assembly 110 and a rear cover 120, where the screen assembly 110 and the rear cover 120 are disposed opposite to each other on two sides of the frame 100, and form an accommodating space with the frame 100, for accommodating electronic components of the electronic device.
Please refer to fig. 2, which is a schematic diagram illustrating the side of the frame 100 of the electronic device facing the screen assembly 110.
The frame 100 includes a pair of side frames 101 disposed opposite to each other, and a top frame 102 and a bottom frame 103 connected between the pair of side frames 101. Typically, when the rim 100 is rectangular, the side rim 101 is a long side, and the top rim 102 and the bottom rim 103 are short sides. The bottom frame 103 is generally used for setting a microphone, a speaker, a connection interface, etc. of the electronic device, the top frame 102 is generally used for setting an earphone, a camera, etc. of the electronic device, and the side frame 101 is generally used for setting a volume key, a card holder, a power key, etc. of the electronic device.
The frame 100 includes at least an injection molded structure. In some embodiments, the frame 100 is made of plastic, and the whole is an injection-molded structure. In other embodiments, the main body of the frame 100 is a metal frame, and the frame 100 further includes an injection molded frame located on the surface of the metal frame and located between the metal frame and the screen assembly 110, so as to improve the fit between the screen assembly 110 and the frame 100. In fig. 2, the bezel 100 may be understood as a plastic bezel, or an injection molded bezel of a metal bezel surface. In other embodiments, the frame 100 may be partially injection molded.
The electronic device further comprises a light guide 200 integrally injection molded with the injection molded structure of the bezel 100. The light guide 200 is partially embedded within the injection molded structure. In this embodiment, the light guide 200 is located at the top frame 102 of the frame 100, and in other embodiments, the light guide 200 may be located at other positions of the frame 100.
Referring to fig. 3, the light guide 200 includes a first light guide portion 210. The first light guiding portion 210 includes a first light inlet portion 211 and a first light outlet portion 212, the first light outlet portion 212 is connected to the first light inlet portion 211, the first light inlet portion 211 is embedded in the injection structure of the frame 100, the first light outlet portion 212 is located inside the frame 100, and the first light outlet portion 212 has a light outlet surface. Ambient light enters the first light inlet portion 211 from the light guiding surface of the first light inlet portion 211, is guided into the first light outlet portion 212 by the first light inlet portion 211, and is emitted through the light outlet surface of the first light outlet portion 212.
The electronic device has a light sensor, and a light sensing surface of the light sensor is disposed opposite to the light emitting surface of the first light emitting portion 212, and is configured to receive the ambient light introduced from the first light guiding portion 210, so as to measure the intensity of the ambient light.
The light guide body 200 further includes a second light guide portion 220, where the second light guide portion 220 includes a second light inlet portion 222 and a second light outlet portion 221, and the second light outlet portion 221 is embedded in the injection molding structure of the frame 100. The second light inlet 222 is located inside the frame 100, and the second light inlet 222 has a light inlet surface. The electronic device further includes an infrared emitter, the infrared emitter is disposed opposite to the light inlet surface of the second light inlet portion 222, and the second light guide portion 220 is configured to guide infrared light emitted by the infrared emitter to the outside of the electronic device, and is configured to perform close-range detection, so as to realize control of automatic screen-off and screen-on.
In this embodiment, the first light guiding portion 210 and the second light guiding portion 220 are further connected by a light guiding beam 230, so that a serial light path exists between the first light guiding portion 210 and the second light guiding portion 220. Preferably, the light guide beam 230 connects the first light inlet 211 of the first light guide 210 and the second light outlet 221 of the second light guide 220.
In this embodiment, in order to further fix the light guide 200 and improve the stability of the light guide 200, the electronic device further includes a fixing plate 240 located inside the frame 100. The edge of the fixing plate 240 may be connected to the injection structure of the frame 100, and may be integrally formed with the injection structure and the light guide 200, and specifically, the injection structure, the light guide 200, and the fixing plate 240 may be formed by a two-color injection molding process.
The fixing plate 240 may be used to fix the light guide 200, and may also be used as an optical isolation structure between the first light guide 210 and the second light guide 220 except for the light guide beam 230, so as to prevent excessive optical crosstalk between the second light inlet 222 and the first light outlet 212, and influence accuracy of short-distance detection.
Fig. 4 is a schematic cross-sectional view of an electronic device perpendicular to a frame according to the present invention.
The screen assembly 110 of the electronic device includes at least a cover 111, a touch panel 112 positioned below the cover 111, and a display screen 113 positioned below the touch panel 112. The size of the cover 111 is larger than the sizes of the touch panel 112 and the display screen 113. The edge of the cover 111 is connected to the edge of the frame 100 in a contact manner. The other side edge of the frame 100 is connected to the rear cover 120.
In this embodiment, the frame 100 includes a metal frame 111a and an injection molded frame 112a between the cover 111 and the metal frame 111 a. The fixing plate 240 is formed on the inner side of the injection molding frame 112a, the light guide 200 is embedded in the injection molding frame 112a and the fixing plate 240, and the injection molding frame 112a, the fixing plate 240 and the light guide 200 are in an integral structure.
The electronic device further comprises a support 401 fixed inside the metal bezel 111a, the support 401 being used for fixing the light sensor 402 and other electronic components, only the light sensor 402 being shown in fig. 4. The light sensor 402 is located below the light emitting surface of the first light guiding portion 210 in the light guiding body 200. Ambient light enters the light guide 200 through the cover 111 and exits from the light exit surface to the light sensor 402. The arrow lines in the light guide 200 are only schematic for ambient light, and do not represent the actual light transmission path in the light guide 200. The ambient light may be transmitted in a straight line or reflected once or more times in the light guide 200, and finally emitted from the light emitting surface.
Foam materials are filled in the optical sensor 402, between the infrared emitters and at the periphery of the light guide 200 to avoid light crosstalk.
In the above embodiment, the light guide 200 and the injection molding structure of the frame 100 are integrally formed and partially embedded into the frame 100, so that the space between the display screen occupied by the light guide 200 and the frame 100 can be reduced, and the black edge width of the screen assembly can be reduced. In addition, since the light guide 200 and the injection molding structure of the frame 100 are integrally formed, additional assembly is not required, the implementation manner is simpler, and the assembly of the electronic device is easier to realize.
Fig. 5a to 5c are schematic structural views of a light guide 200 according to an embodiment of the invention, wherein fig. 5a is a front view of the light guide 200, fig. 5b is a top view of the light guide 200, and fig. 5c is a side view of the light guide 200.
In this embodiment, the light guide body 200 includes a first light guide portion 210 and a second light guide portion 220, and the first light guide portion 210 and the second light guide portion 220 are connected by a light guide beam 230.
The first light guide portion 210 and the second light guide portion 220 have the same structure and are arranged in parallel. A light sensor is disposed below the first light guiding portion 210, and a light sensing area of the light sensor is located in the projection of the light emitting surface 2121 of the first light guiding portion 210; the light emitting area of the infrared emitter is also located in the projection of the light incident surface 2221 of the second light guiding portion 220 under the second light guiding portion 220.
The light guide 200 is made of transparent material, has high transmittance and low haze, and has high light guide capability for ambient light. In some embodiments, the material of the light guide 200 may be polymethyl methacrylate (PMMA), polycarbonate (PC), or the like. In other embodiments, other materials meeting the above requirements may be selected by those skilled in the art to form the light guide 200.
An obtuse angle is formed between the first light inlet portion 211 and the second light outlet portion 221 of the first light guide portion 210, and in other embodiments, the first light inlet portion 211 and the second light outlet portion 221 are perpendicular to each other or are connected by a curved surface. The second light-in portion 222 and the second light-out portion 221 of the second light guide portion 220 are connected to the first light-in portion 211 and the second light-out portion 221 in the same manner.
The bottom of the first light-emitting portion 212 has a protruding portion, and an end surface of the protruding portion is used as the light-emitting surface 2121. The light-emitting surface 2121 is a plane and is disposed in parallel with the light-sensing surface of the light sensor 402 (refer to fig. 4). The light field range of the outgoing light can be adjusted by adjusting the size of the light outgoing surface 2121, so that the light sensitive surface of the light sensor 402 is located in the square range. The protruding portion may be a cylinder or other columnar structures, and the protruding portion has a smaller size, which is beneficial to converging light and improving the light intensity emitted from the light emitting surface 2121.
The bottom of the second light inlet 222 of the second light guide 220 also has a protruding portion, the end surface of the protruding portion is a light inlet surface 2221, the light inlet surface 2221 is a plane for collecting the infrared light emitted from the infrared emitter below, and the infrared light is emitted from the light outlet surface 2211 of the second light outlet 221 via the second light guide 220.
In other embodiments, the first light emitting portion 212 and the second light entering portion 222 may have flat bottom surfaces.
In this embodiment, the first light emitting portion 212 and the second light entering portion 222 have a recess 2122 and a recess 2222, respectively, which are formed by a positioning structure in a mold during injection molding, and are used for positioning the light guide 200 during injection molding. The cross section of the recess may be circular or polygonal, etc., and is not limited herein. In other embodiments, the first light emitting portion 212 and the second light entering portion 222 may not have the recess, but may be a simple rectangular column, a cylinder, a multi-deformation column, or the like.
The light guide beam 230 is used to provide an optical crosstalk path between the first light guide portion 210 and the second light guide portion 220. In the process of short-distance detection, infrared light emitted by the infrared emitter is emitted to the outside of the electronic device through the second light guide part 220, reflected by the shielding object, and received by the light sensor through the first light guide part 210, so that the distance between the electronic device and the shielding object is detected. When the distance between the electronic device and the shielding object is too short, for example, when the shielding object is tightly attached to the surface of the screen, the reflection angle of the outgoing infrared light is small, and the outgoing infrared light may not enter the first light guiding portion 210, so that the detection result may not be obtained. The light guide beam 230 serves as a crosstalk path for infrared transmission, providing a background noise for close range detection. When the shielding object is close to the electronic device, although the reflected light cannot enter the first light guide portion 210, a part of the infrared light in the second light guide portion 220 may enter the first light guide portion 210 through the light guide beam 230, and be received by the light sensor 4012, and still the detection result may be obtained. The size of the background noise for short-range detection can be adjusted by those skilled in the art by adjusting the cross-sectional dimension of the light guide beam 230 to obtain a suitable background noise signal.
Only a single light sensor may be disposed below the first light guide portion 210, which is used to detect ambient light, so as to realize automatic adjustment of screen backlight, and also is used to receive infrared light detected in a short distance, so as to realize control of automatically turning off the screen. In other embodiments, two light sensors may be further disposed below the first light guiding portion 210 to detect ambient light and infrared light, respectively, and the two light sensors are both located in the projection of the light emitting surface 2121 of the first light guiding portion 210.
In some embodiments, a light blocking layer may be further formed on a surface of a side wall of the light guide body 200 facing to the display screen, so as to prevent light from entering the light guide body 200, so as to improve a light leakage phenomenon of the screen and improve accuracy of automatic adjustment of backlight of the screen. The light blocking layer may be a light absorbing layer for absorbing light emitted from the display screen, for example, a black spray coating layer on the surface of the side wall, or a black plastic film, for example, a PET film layer, adhered to the surface of the side wall. In other embodiments, the light absorbing layer may also be a reflective layer for reflecting light leakage from the screen. The light absorbing layer may be a rough surface layer located on the side wall of the light guide 200, and may be formed by sanding the side wall of the light guide 200, or attaching a reflective film layer to the surface of the side wall.
In other embodiments, the light-blocking layer may be covered on the other surfaces of the light-emitting surface and the light-entering surface of the light guide 200.
The foregoing embodiments are merely examples of the present application, and are not intended to limit the scope of the patent application, so that all equivalent structures or equivalent processes using the descriptions and the drawings of the present application, such as the combination of technical features of the embodiments, or direct or indirect application to other related technical fields, are included in the scope of the patent protection of the present application.
Claims (9)
1. An electronic device, comprising:
the frame at least comprises an injection molding structure;
the light guide body and the injection molding structure are of an integrated structure, the light guide body comprises a first light guide part and a second light guide part, the first light guide part comprises a first light inlet part and a first light outlet part, the first light outlet part is connected with the first light inlet part, the first light inlet part is embedded into the injection molding structure, the first light outlet part is positioned at the inner side of the frame, and the first light outlet part is provided with a light outlet surface; the second light guide part comprises a second light inlet part and a second light outlet part, the second light outlet part is connected with the second light inlet part, and the second light outlet part is embedded into the injection molding structure; the first light inlet part of the first light guide part and the second light outlet part of the second light guide part are connected through a light guide beam;
the light sensor is arranged opposite to the light emitting surface of the first light emitting part.
2. The electronic device of claim 1, further comprising: the screen assembly comprises a display screen and a cover plate positioned above the display screen, and the edge of the cover plate is connected with the edge of the frame; the light guide body is located between the display screen and the frame, the light inlet surface of the first light inlet part faces the cover plate, and the light outlet surface of the first light outlet part faces away from the cover plate.
3. The electronic device of claim 1, further comprising: the fixing plate is positioned in the inner side area of the frame, and the edge of the fixing plate is fixed on the injection molding structure; the first light emitting part is embedded into the fixing plate, and the light guide body, the injection molding structure and the fixing plate are of an integrated structure.
4. The electronic device of claim 2, wherein a surface of a side wall of the light guide facing the display screen has a light blocking layer.
5. The electronic device of claim 4, wherein the light blocking layer comprises at least one of a light absorbing layer or a light reflecting layer.
6. The electronic device of claim 2, wherein the bezel comprises a metal frame, the injection molded structure is an injection molded frame located on a surface of the metal frame, and the injection molded frame is configured to be connected to a cover edge of a screen assembly.
7. The electronic device of claim 1, wherein the second light guide is integrally formed with the injection molded structure.
8. The electronic device of claim 7, further comprising: and the infrared emitter is arranged opposite to the light inlet surface of the second light guide part.
9. The electronic device of claim 8, wherein the light-emitting surface of the second light-emitting portion faces the cover plate; the light inlet surface of the second light inlet part is opposite to the infrared emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010627543.1A CN113890908B (en) | 2020-07-01 | 2020-07-01 | Electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010627543.1A CN113890908B (en) | 2020-07-01 | 2020-07-01 | Electronic equipment |
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| Publication Number | Publication Date |
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| CN113890908A CN113890908A (en) | 2022-01-04 |
| CN113890908B true CN113890908B (en) | 2024-04-05 |
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| CN202010627543.1A Active CN113890908B (en) | 2020-07-01 | 2020-07-01 | Electronic equipment |
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