CN110867143B - Electronic device - Google Patents
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- CN110867143B CN110867143B CN201911227565.2A CN201911227565A CN110867143B CN 110867143 B CN110867143 B CN 110867143B CN 201911227565 A CN201911227565 A CN 201911227565A CN 110867143 B CN110867143 B CN 110867143B
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- pcb
- liquid crystal
- crystal module
- cavity
- light
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 80
- 239000002390 adhesive tape Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 16
- 239000012790 adhesive layer Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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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
- G09F9/35—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 being liquid crystals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to electronic equipment which comprises a liquid crystal module, a PCB (printed circuit board), a shading adhesive tape and a middle frame, wherein the liquid crystal module is used for displaying information; the PCB is arranged below the liquid crystal module and comprises a first side surface, a second side surface, a top surface and a bottom surface, wherein the first side surface and the second side surface are oppositely arranged, and the top surface and the bottom surface are oppositely arranged; the shading adhesive tape comprises a first part, a second part, a third part and a fourth part which are sequentially connected, wherein the first part of the shading adhesive tape is pasted on the first side surface of the liquid crystal module and the first side surface of the PCB, the second part is pasted on the bottom surface of the PCB, the third part is pasted on the second side surface of the PCB, and the fourth part is pasted between the top surface of the PCB and the liquid crystal module; be provided with in the center and hold the chamber for hold liquid crystal module, PCB board and shading sticky tape. According to the electronic equipment, the shading adhesive tape is tightly attached to the periphery of the PCB, the attaching edge of the shading adhesive tape is flat, and interference during assembly can be avoided.
Description
Technical Field
The invention relates to the technical field of assembly of liquid crystal modules, in particular to electronic equipment.
Background
A Liquid Crystal Display Module (LCM for short) refers to a component that assembles peripheral circuits such as a Liquid Crystal Display device, a connector, a control and drive device, a PCB board, a backlight source, a structural member, and the like, and is widely used in Display electronic devices. However, in the assembly process of the electronic device, when the liquid crystal module is assembled with the external PCB, the liquid crystal module is prone to leak light at the connection with the external PCB.
Disclosure of Invention
Accordingly, it is desirable to provide an electronic device that can solve the problem of light leakage when assembling a liquid crystal module.
The electronic equipment comprises a liquid crystal module, a PCB (printed circuit board), a shading adhesive tape and a middle frame, wherein the liquid crystal module is used for displaying information; the PCB is arranged below the liquid crystal module and comprises a first side surface, a second side surface, a top surface and a bottom surface, wherein the first side surface and the second side surface are oppositely arranged, and the top surface and the bottom surface are oppositely arranged; the shading tape comprises a first part, a second part, a third part and a fourth part which are connected with each other, wherein the first part of the shading tape is pasted on the first side surface of the liquid crystal module and the first side surface of the PCB, the second part is pasted on the bottom surface of the PCB, the third part is pasted on the second side surface of the PCB, and the fourth part is pasted between the top surface of the PCB and the liquid crystal module; and the middle frame is internally provided with an accommodating cavity for accommodating the liquid crystal module, the PCB and the shading adhesive tape.
In one embodiment, the first side of the PCB is flush with the first side of the liquid crystal module.
In one embodiment, the accommodating cavity comprises a first cavity and a second cavity which are communicated with each other, the first cavity is used for accommodating the liquid crystal module, and the second cavity is used for accommodating the PCB.
In one embodiment, the electronic device further includes a touch panel disposed on a side of the liquid crystal module away from the PCB.
In one embodiment, the accommodating cavity further includes a third cavity, the third cavity is located above the second cavity, and the third cavity is used for accommodating the touch panel.
In one embodiment, the upper surface of the middle frame is flush with the upper surface of the touch panel.
In one embodiment, the light-shielding tape includes a support layer and an adhesive layer, and has a single-sided adhesive function.
In one embodiment, the light-shielding tape includes a first separator layer, an adhesive layer, and a second separator layer detachably attached on opposite surfaces of the adhesive layer, and has a double-sided adhesive function.
In one embodiment, the thickness of the light-shielding tape is less than the length of the fourth portion of the light-shielding tape.
In one embodiment, the thickness of the light-shielding tape is less than 0.5mm, and the length of the fourth part of the light-shielding tape is more than 0.5mm
The electronic equipment has the beneficial effects that:
according to the electronic equipment, the shading adhesive tape is used in the assembling process of the liquid crystal module and is coated on the first side surface of the liquid crystal module and the peripheral surface of the PCB, so that on one hand, light leakage of the liquid crystal module can be prevented, on the other hand, the shading adhesive tape is tightly attached to the periphery of the PCB, the attaching edge of the shading adhesive tape is flat, the liquid crystal module and the PCB can be conveniently assembled into the accommodating cavity in the middle frame, and interference in assembling is avoided.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device before assembly according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an electronic device after assembly according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a light-shielding tape according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a light-shielding tape according to another embodiment of the present invention.
Fig. 5 is a schematic structural view of a light-shielding tape according to still another embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an electronic device before assembly according to another embodiment of the present invention.
Reference numerals:
the touch panel 100, the liquid crystal module 200, the first side surface 210 of the liquid crystal module, the PCB 300, the first side surface 310 of the PCB, the bottom surface 320, the second side surface 330, the top surface 340, the light-shielding tape 400, the first part 410, the second part 420, the third part 430, the fourth part 440, the support layer 450, the adhesive layer 460, the first isolation layer 470, the second isolation layer 480, the middle frame 500, the accommodating cavity 510, the first cavity 511, the second cavity 512, and the third cavity 513.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
In one embodiment, as shown in fig. 1 and fig. 2, the assembly structure of the liquid crystal module 200 includes a touch panel 100, the liquid crystal module 200, a PCB 300, a light-shielding tape 400 and a middle frame 500, wherein the liquid crystal module 200 is disposed below the touch panel 100, and the liquid crystal module 200 is used for displaying information; the PCB 300 is arranged below the back plate of the liquid crystal module 200, the PCB 300 comprises a first side surface 310, a second side surface 330, a top surface 340 and a bottom surface 320, the first side surface 310 and the second side surface 330 are oppositely arranged, the top surface 340 and the bottom surface 320 are oppositely arranged, and the first side surface 310 of the PCB 300 is flush with the first side surface 210 of the liquid crystal module 200; the light shielding tape 400 includes a first part 410, a second part 420, a third part 430 and a fourth part 440 which are connected to each other, the first part 410 of the light shielding tape 400 is adhered to the first side surface 210 of the liquid crystal module 200 and the first side surface 310 of the PCB 300, the second part 420 is adhered to the bottom surface 320 of the PCB 300, the third part 430 is adhered to the second side surface 330 of the PCB 300, and the fourth part 440 is adhered between the top surface 340 of the PCB 300 and the liquid crystal module 200; the middle frame 500 is provided therein with a receiving cavity 510, and the receiving cavity 510 is used for receiving the liquid crystal module 200, the PCB 300 and the light shielding tape 400.
In assembling, the touch panel 100 and the PCB 300 are disposed on two opposite sides of the liquid crystal module 200, the first portion 410 of the light shielding tape 400 is adhered to the first side 210 of the liquid crystal module 200 and the first side 310 of the PCB 300, the second portion 420 of the light shielding tape 400 is adhered to the bottom surface 320 of the PCB 300, the third portion 430 of the light shielding tape 400 is adhered to the second side 330 of the PCB 300, and the fourth portion 440 of the light shielding tape 400 is folded back and adhered between the top surface 340 of the PCB 300 and the back plate of the liquid crystal module 200, so that on one hand, light leakage of the liquid crystal module 200 can be prevented, and on the other hand, compared with the case that the fourth portion 440 of the light shielding tape 400 is adhered to the back plate of the liquid crystal module 200, the fourth portion 440 of the light shielding tape 400 is folded back and adhered, so that the light shielding tape 400 is tightly adhered around the PCB 300 and the adhering edge of the light shielding tape 400 is flat, the cavity 510 that holds in the center 500 is gone into with LCD module 200 and PCB board 300 equipment to the convenience, takes place to interfere when avoiding assembling, and in addition, the setting is pasted in the turn-over of fourth part 440 of shading sticky tape 400, can also reduce the distance of shading sticky tape 400 to LCD module 200 edge, improves the convenience of operating personnel equipment. It should be noted that, when the fourth portion 440 of the light-shielding tape 400 is folded back and adhered between the PCB 300 and the back plate of the liquid crystal module 200, for convenience of operation, the first portion 410 of the light-shielding tape 400 may be bent toward a direction away from the PCB 300 at a boundary between the liquid crystal module 200 and the PCB 300, so as to provide an operation space for the folding back of the fourth portion 440 of the light-shielding tape 400.
It should be noted that, in the embodiment shown in fig. 1 and fig. 2, the first side surface 210 of the liquid crystal module 200 is flush with the first side surface 310 of the PCB 300, so as to facilitate the first part 410 of the light shielding tape 400 to be adhered to the first side surface 210 of the liquid crystal module 200 and the first side surface 310 of the PCB 300 and facilitate the subsequent assembly of the liquid crystal module 200 and the PCB 300 in the accommodating cavity 510 in the middle frame 500, it is understood that in other embodiments, the first side surface 210 of the liquid crystal module 200 and the first side surface 310 of the PCB 300 may be slightly misaligned.
As shown in fig. 1 and 2, the accommodating cavity 510 includes a first cavity 511, a second cavity 512 and a third cavity 513 that are communicated with each other, the first cavity 511 is located between the second cavity 512 and the third cavity 513, the first cavity 511 is used for accommodating the liquid crystal module 200, the second cavity 512 is used for accommodating the PCB 300, and the third cavity 513 is used for accommodating the touch panel 100. As can be seen from fig. 2, the light-shielding tape 400 is tightly attached around the PCB 300, the attachment edge of the light-shielding tape 400 is flat, the touch panel 100, the liquid crystal module 200 and the PCB 300 can be well assembled in the accommodating cavity 510 in the middle frame 500, and after the assembly is completed, the upper surface of the middle frame 500 is flush with the upper surface of the touch panel 100, so that the assembly structure of the liquid crystal module 200 has a more beautiful appearance, and the assembly of other components is not affected.
It should be noted that in the embodiment shown in fig. 1 and fig. 2, the touch panel 100 is disposed on a side of the liquid crystal module 200 away from the PCB 300, and it is understood that in other embodiments, according to specific applications, performances or assembly process requirements of a product, another panel, a cover plate, or no panel or cover plate is directly disposed on a side of the liquid crystal module 200 away from the PCB 300. It is understood that, when no panel or cover plate is disposed on the side of the liquid crystal module 200 away from the PCB 300, only the first cavity 511 and the second cavity 512 may be disposed in the accommodating cavity 510 of the middle frame 500, and the third cavity 513 is not disposed, so that the upper surface of the middle frame 500 may be flush with the upper surface of the liquid crystal module 200 for the sake of the assembled product and convenience of assembly of subsequent components.
In addition, in an embodiment, the light-shielding tape 400 is configured as shown in fig. 3, and includes a supporting layer 450 and an adhesive layer 460, the light-shielding tape 400 has a single-sided adhesive function, and when the light-shielding tape 400 is used, the supporting layer 450 and the adhesive layer 460 are closely attached to the first side 210 of the liquid crystal module 200 and the periphery of the PCB 300.
In another embodiment, the light shielding tape 400 is configured as shown in fig. 4, and includes a first isolation layer 470, an adhesive layer 460, and a second isolation layer 480, wherein the first isolation layer 470 and the second isolation layer 480 are detachably connected to opposite surfaces of the adhesive layer 460, so that the light shielding tape 400 has a double-sided adhesive function, when the light shielding tape 400 is used, the second isolation layer 480 is firstly peeled off, the first portion 410 of the light shielding tape 400 is adhered to the first side surface 210 of the liquid crystal module 200 and the first side surface 310 of the PCB 300, the second portion 420 is adhered to the bottom surface 320 of the PCB 300, the third portion 430 is adhered to the second side surface 330 of the PCB 300, and the fourth portion 440 is reversely folded and adhered between the PCB 300 and the liquid crystal module 200, it should be noted that when the fourth portion 440 of the light shielding tape 400 is reversely folded and adhered between the PCB 300 and the liquid crystal module 200, the first portion 410 of the light shielding tape 400 can be operated at a boundary of the liquid crystal module 200 and the PCB 300 facing away from the PCB 300, in order to facilitate the first portion 410 of the light shielding tape 400 And the bending provides an operation space for the reverse folding of the fourth portion 440 of the light-shielding tape 400. After the light-shielding tape 400 is attached to the first side surface 210 of the liquid crystal module 200 and the periphery of the PCB 300, the first isolation layer 470 is torn off, so that the fourth portion 440 of the light-shielding tape 400 can be simultaneously attached to the PCB 300 and the back panel of the liquid crystal module 200.
In still another embodiment, the light shielding tape 400 is structured as shown in fig. 5, and includes a first separator 470, an adhesive layer 460, and a second separator 480, wherein the first separator 470 and the second separator 480 are detachably connected to the adhesive layer 460, the second separator 480 covers all four portions of the light shielding tape 400, and the first separator 470 covers only the fourth portion 440 of the light shielding tape 400, such that the first three portions of the light shielding tape 400 have a single-sided adhesive function and the fourth portion 440 has a double-sided adhesive function. When the light shielding tape 400 is used, the second spacer is firstly removed, the first part 410 of the light shielding tape 400 is adhered to the first side surface 210 of the liquid crystal module 200 and the first side surface 310 of the PCB 300, the second part 420 is adhered to the bottom surface 320 of the PCB 300, the third part 430 is adhered to the second side surface 330 of the PCB 300, and the fourth part 440 is folded back and adhered between the PCB 300 and the liquid crystal module 200, it should be noted that, when the fourth part 440 of the light shielding tape 400 is folded back and adhered between the PCB 300 and the liquid crystal module 200, for convenience of operation, the first part 410 of the light shielding tape 400 can be bent at the interface between the liquid crystal module 200 and the PCB 300 in a direction away from the PCB 300, so as to provide an operation space for the folding back of the fourth part 440 of the light shielding tape 400. After the light-shielding tape 400 is attached to the first side surface 210 of the liquid crystal module 200 and the periphery of the PCB 300, the first isolation layer 470 is torn off, so that the fourth portion 440 of the light-shielding tape 400 can be simultaneously attached to the PCB 300 and the back panel of the liquid crystal module 200.
In addition, in order to ensure that the fourth portion 440 of the light-shielding adhesive can be folded and adhered between the PCB 300 and the liquid crystal module 200, the thickness of the light-shielding tape 400 is smaller than the length of the fourth portion 440 of the light-shielding tape 400. In a specific embodiment, as shown in FIG. 6, the thickness D2 of the light shielding tape 400 is less than 0.5mm and the length D1 of the fourth portion 440 of the light shielding tape 400 is greater than 0.5 mm. In addition, the light-shielding tape 400 may have not only a light-shielding function but also a heat-resistant function according to the specific use, performance or assembly process requirements of the product, for example, in one embodiment, the light-shielding tape 400 can withstand a high temperature of 100 ℃.
According to the electronic equipment, the shading adhesive tape is used in the assembling process of the liquid crystal module and is coated on the first side face of the liquid crystal module and the four faces of the PCB, so that on one hand, light leakage of the liquid crystal module can be prevented, on the other hand, the shading adhesive tape is tightly attached to the periphery of the PCB, the attaching edge of the shading adhesive tape is flat, the liquid crystal module and the PCB can be conveniently assembled into the accommodating cavity in the middle frame, and interference in assembling is avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. An electronic device, comprising:
a liquid crystal module;
the PCB is arranged below the liquid crystal module and comprises a first side surface, a second side surface, a top surface and a bottom surface, wherein the first side surface and the second side surface are oppositely arranged, and the top surface and the bottom surface are oppositely arranged;
the shading tape comprises a first part, a second part, a third part and a fourth part which are sequentially connected, wherein the first part of the shading tape is pasted on the first side surface of the liquid crystal module and the first side surface of the PCB, the second part of the shading tape is pasted on the bottom surface of the PCB, the third part of the shading tape is pasted on the second side surface of the PCB, the fourth part of the shading tape is pasted between the top surface of the PCB and the liquid crystal module, and the thickness of the shading tape is smaller than the length of the fourth part of the shading tape; and
and the middle frame is internally provided with an accommodating cavity for accommodating the liquid crystal module, the PCB and the shading adhesive tape.
2. The electronic device of claim 1, wherein the first side of the PCB board is flush with the first side of the liquid crystal module.
3. The electronic device of claim 1, wherein the accommodating cavity comprises a first cavity and a second cavity which are communicated with each other, the first cavity is used for accommodating the liquid crystal module, and the second cavity is used for accommodating the PCB.
4. The electronic device of claim 1, further comprising a touch panel disposed on a side of the liquid crystal module away from the PCB.
5. The electronic device according to claim 4, wherein the accommodating cavity further comprises a third cavity, the third cavity is located above the second cavity, and the third cavity is used for accommodating the touch panel.
6. The electronic device according to claim 5, wherein an upper surface of the middle frame is flush with an upper surface of the touch panel.
7. The electronic device according to claim 1, wherein the light-shielding tape comprises a support layer and an adhesive layer, and the light-shielding tape has a single-sided adhesive function.
8. The electronic device according to claim 1, wherein the light-shielding tape comprises a first separator, an adhesive layer, and a second separator, the first separator and the second separator being detachably attached to opposite surfaces of the adhesive layer, the light-shielding tape having a double-sided adhesive function.
9. The electronic device of claim 1, wherein the thickness of the light-shielding tape is less than 0.5mm and the length of the fourth portion of the light-shielding tape is greater than 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227565.2A CN110867143B (en) | 2019-12-04 | 2019-12-04 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227565.2A CN110867143B (en) | 2019-12-04 | 2019-12-04 | Electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110867143A CN110867143A (en) | 2020-03-06 |
| CN110867143B true CN110867143B (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911227565.2A Active CN110867143B (en) | 2019-12-04 | 2019-12-04 | Electronic device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112416167A (en) * | 2020-11-17 | 2021-02-26 | 业成光电(无锡)有限公司 | Touch display module and electronic equipment |
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