CN113890908A - Electronic device - Google Patents
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- CN113890908A CN113890908A CN202010627543.1A CN202010627543A CN113890908A CN 113890908 A CN113890908 A CN 113890908A CN 202010627543 A CN202010627543 A CN 202010627543A CN 113890908 A CN113890908 A CN 113890908A
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- light
- light guide
- electronic device
- frame
- injection
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- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 238000001746 injection moulding Methods 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 8
- 239000010410 layer Substances 0.000 description 14
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 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
- 239000000243 solution Substances 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
- 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
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Classifications
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- 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
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- 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
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- 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: a bezel comprising at least an injection molded structure; the light guide body and the injection 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 structure, the first light outlet part is positioned on the inner side of the frame, and the first light outlet part is provided with a light outlet surface; and the optical sensor is arranged opposite to the light emergent surface of the first light emergent 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, smart devices such as mobile phones or tablet computers have become common electronic devices, the demand of users on the electronic devices is gradually increased, and especially, full-screen devices gradually become mainstream.
In order to realize the automatic adjustment of the screen brightness, an optical sensor is required to be arranged inside the electronic device, and the optical sensor receives the ambient light, so that the screen backlight is automatically adjusted according to the intensity of the ambient light. Since the size of the existing optical sensor cannot be further reduced at the present stage, the position of the optical sensor needs to be reasonably arranged.
In the prior art, a plurality of light sensing devices are arranged below a screen, and the light transmittance of the screen is low, so that the sensitivity and the light sensing strength of light sensing adjustment are greatly influenced, and the user experience is poor.
Some narrow gaps between the screen of the electronic equipment and the middle frame are provided with the light sensors in the prior art, and certain black edge width is reserved to ensure light sensitivity and light intensity, so that the black edge width of the narrow gap is large or the Liuhai screen is influenced, and the attractiveness of the equipment is influenced.
How to further reduce the width of the black edge of the electronic device on the premise of ensuring the sensitivity of the light sensor is a problem to be solved urgently at present.
Disclosure of Invention
In view of this, the present application provides an electronic device to solve the problem of the existing electronic device that the black edge width is large.
The application provides an electronic equipment, includes: a bezel comprising at least an injection molded structure; the light guide body and the injection 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 structure, the first light outlet part is positioned on the inner side of the frame, and the first light outlet part is provided with a light outlet surface; and the optical sensor is arranged opposite to the light emergent surface of the first light emergent part.
Optionally, the method further includes: 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 deviates from the cover plate.
Optionally, the method further includes: 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 integrally formed structure.
Optionally, a side wall surface of the light guide facing the display screen is provided with a light blocking layer.
Optionally, the light blocking layer includes at least one of a light absorbing layer or a light reflecting layer.
Optionally, the frame includes a metal frame, the injection molding structure is an injection molding frame located on a surface of the metal frame, and the injection molding frame is used for being connected with an edge of a cover plate of the screen assembly.
Optionally, the light guide further includes: the second light guide part and the injection structure are of an integrally formed structure.
Optionally, the method further includes: and the infrared emitter is arranged opposite to the light inlet surface of the second light guide part.
Optionally, the first light guide part and the second light guide part are connected by a light guide beam.
Optionally, the second light guide part includes a second light incident part and a second light emergent part, and the second light emergent part is connected to the second light incident part; the light emitting surface of the second light emitting part faces the cover plate; the second light-emitting part is embedded into the injection molding structure, and a light inlet surface of the second light-inlet part is opposite to the infrared emitter.
Optionally, the first light entering portion of the first light guide portion and the second light exiting portion of the second light guide portion are connected by a light guide beam.
The utility model provides an injection structure integrated into one piece of inside light conductor of electronic equipment and frame, partial embedding in the frame to reduce the display screen that the light conductor occupied with space between the frame, and then can reduce screen pack's black border width. In addition, the light guide body and the injection structure are integrally formed, so that additional assembly is not needed, the implementation mode is simple, and the electronic equipment is easier to assemble.
Furthermore, the surface of the side wall of the light guide body facing to the screen is provided with the light blocking layer, so that screen light can be prevented from entering the light guide body and being received by the light sensor, the problem of screen light leakage can be solved, and the accuracy of backlight automatic adjustment is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural 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 of a partial structure of a bezel of an electronic device according to an embodiment of the present 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 according to an embodiment of the invention.
Detailed Description
As described in the background, the black edge of the electronic device of the related art is wide, affecting the appearance of the device.
The invention provides a novel electronic device, which can further reduce the black edge width of the electronic device and improve the screen occupation ratio and the attractiveness of the electronic device.
The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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 application. The following embodiments and their technical features may be combined with each other without conflict.
In the embodiment of the invention, the electronic device may be a device with a screen component, such as a mobile phone, a tablet computer, an electronic reader, a notebook computer or a wearable device.
Fig. 1 is a side view of an electronic device according to an embodiment of the invention.
The electronic device comprises a frame 100, wherein the frame 100 is a frame of the electronic device in the thickness direction. The electronic device further comprises a screen assembly 110 and a rear cover 120, wherein the screen assembly 110 and the rear cover 120 are oppositely arranged at two sides of the frame 100, and form an accommodating space with the frame 100 for accommodating electronic elements of the electronic device.
Please refer to fig. 2, which is a schematic diagram of the electronic device with the frame 100 facing the screen assembly 110.
The bezel 100 includes a pair of oppositely disposed side bezels 101 and a top bezel 102 and a bottom bezel 103 connected between the pair of side bezels 101. In general, when the bezel 100 is rectangular, the side bezel 101 is the long side and the top bezel 102 and the bottom bezel 103 are the short sides. The bottom frame 103 is generally used for setting a microphone, a speaker, a connection interface, and the like of the electronic device, the top frame 102 is generally used for setting components such as an earphone, a camera, and the like of the electronic device, and the side frame 101 is generally used for setting a volume key, a card holder, a power key, and the like of the electronic device.
The bezel 100 includes at least an injection molded structure. In some embodiments, the frame 100 is made of plastic and is integrally formed by injection molding. In other embodiments, the main body of the frame 100 is a metal frame, and the frame 100 further includes an injection molding 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 frame 100 may be understood as a plastic frame or an injection-molded frame of a metal frame surface. In other embodiments, the frame 100 may also be partially of an injection molded structure.
The electronic device further includes a light guide 200 integrally injection-molded with the injection structure of the frame 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 disposed 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 guide part 210 includes a first light inlet part 211 and a first light outlet part 212, the first light outlet part 212 is connected to the first light inlet part 211, the first light inlet part 211 is embedded in the injection structure of the frame 100, the first light outlet part 212 is located inside the frame 100, and the first light outlet part 212 has a light outlet surface. The ambient light enters the first light inlet portion 211 from the light guide 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, a light sensing surface of which is disposed opposite to the light emitting surface of the first light emitting portion 212, and is configured to receive the ambient light guided from the first light guiding portion 210, so as to measure the intensity of the ambient light.
The light guide 200 further includes a second light guide part 220, the second light guide part 220 includes a second light inlet part 222 and a second light outlet part 221, and the second light outlet part 221 is embedded in the injection molding structure of the frame 100. The second light intake portion 222 is located inside the bezel 100, and the second light intake portion 222 has a light intake 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, so as to perform short-distance detection, thereby implementing control of automatic screen turn-off and screen turn-on.
In this embodiment, the first light guide part 210 and the second light guide part 220 are further connected by a light guide beam 230, so that a light crosstalk path exists between the first light guide part 210 and the second light guide part 220. Preferably, the light guide beam 230 connects the light incident portion 211 of the first light guide portion 210 and the second light emergent portion 221 of the second light guide portion 220.
In this embodiment, in order to further fix the light guide portion 200 and improve the stability of the light guide portion 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 the injection structure and the light guide 200 are integrally formed, 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 fix the light guide 200, and may also serve as an optical isolation structure between the first light guide part 210 and the second light guide part 220 except for the light guide beam 230, to prevent excessive optical crosstalk from being generated between the second light inlet part 222 and the first light outlet part 212, thereby affecting the accuracy of the short-distance detection.
Please refer to fig. 4, which 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 at least includes a cover plate 111, a touch panel 112 located below the cover plate 111, and a display screen 113 located below the touch panel 112. The size of the cover 111 is larger than the size of the touch pad 112 and the display screen 113. The edge of the cover plate 111 is in contact connection with the edge of the bezel 100. The other side edge of the bezel 100 is connected to the rear cover 120.
In this embodiment, the bezel 100 includes a metal bezel 111 and an injection molded bezel 112 located between the cover plate 111 and the metal bezel 111. The inner side of the injection molding frame 112 is provided with a fixing plate 240, the injection molding frame 112 and the fixing plate 240 are embedded with a light guide body 200, and the injection molding frame 112, the fixing plate 240 and the light guide column 200 are of an integral structure.
The electronic device further includes a support 401 fixed inside the metal bezel 111, where the support 401 is used to fix the optical sensor 402 and other electronic components, and in fig. 4, only the optical sensor 402 is shown. The light sensor 402 is located below the light emitting surface of the first light guide portion 210 in the light guide member 200. The ambient light enters the light guide 200 through the cover plate 111 and is emitted from the light emitting surface to the light sensor 402. The arrow lines in the light guide 200 are only illustrated as ambient light and do not represent the actual light transmission path in the light guide 200. The ambient light may be linearly transmitted or reflected once or more times in the light guide 200 and finally emitted from the light emitting surface.
Foam materials are filled among the optical sensor 402, the infrared emitters and the periphery of the light guide body 200 to avoid light crosstalk.
The injection molding structure of the light guide 200 and the frame 100 in the above embodiment is integrally molded, and the injection molding structure is partially embedded in 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 further reduced. In addition, since the light guide 200 and the injection structure of the frame 100 are integrally formed, additional assembly is not required, the implementation manner is simple, and the electronic device is easier to assemble.
Fig. 5a to 5c are schematic structural diagrams of a light guide 200 according to an embodiment of the invention, where 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 part 210 and a second light guide part 220, and the first light guide part 210 and the second light guide part 220 are connected by a light guide beam 230.
The first light guide part 210 and the second light guide part 220 have the same structure and are arranged in parallel. A light sensor is disposed below the first light guide part 210, and a light sensing area of the light sensor is located in a projection of the light emitting surface 2121 of the first light guide part 210; an infrared emitter is disposed below the second light guide part 220, and a light emitting area of the infrared emitter is also located in a projection of the light entrance surface 2221 of the second light guide part 220.
The light guide 200 is made of a 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, one skilled in the art may select other materials to form the light guide 200 that meet the above requirements.
The first light inlet portion 211 and the second light outlet portion 212 of the first light guide portion 210 form an obtuse angle therebetween, and in other embodiments, the first light inlet portion 211 and the second light outlet portion 212 are perpendicular to each other or connected by a curved surface. The second light inlet portion 222 and the second light outlet portion 221 of the second light guide portion 210 are connected to the first light inlet portion 211 and the second light outlet portion 212 in the same manner.
The bottom of the first light emitting part 212 has a protrusion, and an end surface of the protrusion is used as a light emitting surface 2121. The light-emitting surface 2121 is a plane and is disposed parallel to the light-sensing surface of the optical sensor 402 (see fig. 4). The size of the light emitting surface 2121 can be adjusted to adjust the light field range of the emergent light, so that the light sensing surface of the optical sensor 402 is located in the square range. The protruding portion may be a cylinder or other columnar structure, and the protruding portion has a small size, so as to facilitate light convergence and improve light intensity emitted from the light emitting surface 2121.
The bottom of the second light inlet portion 2221 of the second light guide portion 220 also has a protrusion, an end surface of the protrusion is used as a light inlet surface 2221, and the light inlet surface 2221 is a plane, and is used for collecting infrared light emitted from the lower infrared emitter and emitting the infrared light from the light outlet surface 2211 of the second light outlet portion 221 through the second light guide portion 220.
In other embodiments, the first light outlet portion 212 and the second light inlet portion 222 may also have flat bottom surfaces.
In this embodiment, the first light emitting portion 2122 and the second light entering portion 2222 have a recess 2122 and a recess 2222, respectively, which are formed by a positioning structure in a mold during the injection molding process, and are used for positioning the light guide 200 during the injection molding process. 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 2122 and the second light entering portion 2222 may not have the recess, but may be a simple rectangular column, a cylinder, a multi-deformation column, or the like.
The light guide beams 230 are used to provide an optical crosstalk path between the first light guide part 210 and the second light guide part 220. During the short-distance detection, the infrared light emitted from 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 optical 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 close, for example, when the shielding object is close to the surface of the screen, the reflection angle of the emitted infrared light is small, and the 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 acts as a crosstalk path for infrared transmission, providing a noise floor for close range detection. When the distance between the shield and the electronic device is short, 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 enters the first light guide portion 210 through the light guide beam 230 and is received by the optical sensor 4012, and the detection result can still be obtained. The skilled person can adjust the size of the noise floor detected in a short distance by adjusting the cross-sectional dimension of the light guiding beam 230 to obtain a suitable noise floor signal.
Only a single optical sensor may be disposed below the first light guide portion 210, and is used to detect ambient light to achieve automatic adjustment of screen backlight, and also used to receive infrared light detected in a short distance to achieve control of automatically turning off the screen. In other embodiments, two optical sensors may be further disposed below the first light guide portion 210 to detect ambient light and infrared light, respectively, and both the two optical sensors are located in the projection of the light exit surface 2121 of the first light guide portion 210.
In some embodiments, a light blocking layer may be further formed on a surface of a sidewall of the light guide portion 200 facing the display screen, so as to prevent screen light from entering the light guide portion 200, thereby improving a light leakage phenomenon of the screen and improving accuracy of automatic adjustment of the screen backlight. The light blocking layer may be a light absorbing layer for absorbing light emitted from the display screen, for example, a black sprayed layer on the surface of the sidewall, or a black plastic film adhered to the surface of the sidewall, for example, a PET film. In other embodiments, the light absorbing layer may also be a reflective layer for reflecting light leakage of the screen. The light absorbing layer may be a rough surface layer on the side wall of the light guide part 200, and may be formed by sanding the side wall of the light guide part 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 guide part 200 except the light exit surface and the light entrance surface.
The above-mentioned embodiments are only examples of the present application, and not intended to limit the scope of the present application, and all equivalent structures or equivalent flow transformations made by the contents of the specification and the drawings, such as the combination of technical features between the embodiments and the direct or indirect application to other related technical fields, are also included in the scope of the present application.
Claims (11)
1. An electronic device, comprising:
a bezel comprising at least an injection molded structure;
the light guide body and the injection 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 structure, the first light outlet part is positioned on the inner side of the frame, and the first light outlet part is provided with a light outlet surface;
and the optical sensor is arranged opposite to the light emergent surface of the first light emergent 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 deviates 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 integrally formed structure.
4. The electronic device according to claim 2, wherein a side wall surface 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, and 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 an edge of a cover plate of the screen assembly.
7. The electronic device according to claim 1, wherein the light guide further includes: the second light guide part and the injection structure are of an integrally formed 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 according to claim 7, characterized in that the first light guiding portion and the second light guiding portion are connected by a light guiding beam.
10. The electronic device according to claim 7, wherein the second light guide part includes a second light incident part and a second light exiting part, and the second light exiting part is connected to the second light incident part; the light emitting surface of the second light emitting part faces the cover plate; the second light-emitting part is embedded into the injection molding structure, and a light inlet surface of the second light-inlet part is opposite to the infrared emitter.
11. The electronic apparatus according to claim 10, wherein the first light entering portion of the first light guide portion and the second light exiting portion of the second light guide portion are connected by a light guide beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010627543.1A CN113890908B (en) | 2020-07-01 | 2020-07-01 | Electronic equipment |
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| CN202010627543.1A CN113890908B (en) | 2020-07-01 | 2020-07-01 | Electronic equipment |
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| CN113890908A true CN113890908A (en) | 2022-01-04 |
| CN113890908B CN113890908B (en) | 2024-04-05 |
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