Light distance sensing sealing structure under flexible mobile phone screen

Abstract

The utility model relates to a light distance sensing sealing structure under a flexible mobile phone screen, which comprises a middle frame body, a flexible screen assembly, a PCB bottom plate, a light distance sensor, a rubber sleeve and a buffer piece, the middle frame body is provided with an accommodating part, the flexible screen assembly and the PCB bottom plate are respectively arranged on two opposite sides of the middle frame body, and an accommodating space is defined by the flexible screen assembly, the PCB bottom plate and the accommodating part; the flexible screen assembly comprises a flexible screen and a metal substrate, and the metal substrate is attached to the bottom of the flexible screen; the optical distance sensor is contained in the containing space and fixedly installed on the PCB bottom plate, and a first optical distance hole and a second optical distance hole are formed in the positions, corresponding to the optical distance sensor, of the metal substrate. The rubber sleeve wraps the periphery of the optical distance sensor, and the buffer piece is arranged between the metal substrate and the rubber sleeve and is in sealed connection with the metal substrate and the rubber sleeve. The light distance sensing sealing structure provided by the utility model can prevent a top screen from being hunched up due to tolerance accumulation of devices, and meanwhile, good sealing performance is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mobile phone internal sealing structure, in particular to a flexible mobile phone screen under light distance feel sealing structure. BACKGROUND

[0002] Cumulative tolerance refers to the total tolerance generated during the assembly, connection, parallel / series or combination of multiple parts. This concept covers the overall error formed after the assembly of multiple parts, which may include dimensional tolerance and geometric tolerance. Dimensional tolerance mainly involves the difference between the actual size of the part and the design size, while geometric tolerance involves the deviation of the position and shape of the part from the design requirements.

[0003] The components inside the mobile phone will produce tolerance during production and assembly. In the current flexible screen mobile phone product, the screen under light distance sensor is sealed by a single rubber sleeve. Under the action of cumulative tolerance between components, the single rubber sleeve cannot effectively achieve good sealing and fixation with the screen substrate. Moreover, due to the opening in the substrate corresponding to the sensor position, the screen strength is weak at the opening position, and the rubber sleeve is easy to be pushed up, causing the screen to appear convex, affecting the appearance of the mobile phone screen and reducing the service life of the mobile phone screen. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a flexible mobile phone screen under light distance feel sealing structure to solve the problem that the light distance sensor and the rubber sleeve outside the sensor cannot achieve good sealing due to tolerance and are easy to appear screen pushing.

[0005] The utility model provides a flexible mobile phone screen under light distance feel sealing structure, including intermediate frame, flexible screen assembly, PCB bottom plate, light distance sensor, rubber sleeve and buffer piece, the intermediate frame is equipped with containing portion, the flexible screen assembly and the PCB bottom plate are installed on the opposite sides of the intermediate frame respectively, and the containing portion is surrounded to form containing space, the flexible screen assembly includes flexible screen and metal base plate, the metal base plate is pasted in the bottom of the flexible screen, the light distance sensor is contained in the containing space and is fixedly installed on the PCB bottom plate, the metal bottom plate is equipped with first light distance hole and second light distance hole in the corresponding position of the light distance sensor, the rubber sleeve is wrapped in the circumference of the light distance sensor, the buffer piece is set between the metal base plate and the rubber sleeve, and is sealed with the metal base plate and the rubber sleeve respectively, the buffer piece is equipped with first light hole and second light hole in the corresponding position of the first light distance hole and the second light distance hole respectively.

[0006] In an embodiment, the first light distance hole has an area greater than that of the first light hole, the second light distance hole has an area greater than that of the second light hole, and the buffer part is sealingly connected to the metal substrate and partially exposed at a position opposite to the first light distance hole and the second light distance hole.

[0007] In an embodiment, the first light hole is circular in shape, and the second light hole is irregularly rectangular in shape.

[0008] In an embodiment, the side surface of the buffer part is provided with a foolproof protrusion.

[0009] In an embodiment, the light distance sensor comprises a light emitting end and a light receiving end, and the rubber sleeve is provided with a first opening and a second opening at corresponding positions of the light emitting end and the light receiving end, respectively.

[0010] In an embodiment, the first opening has the same shape as the first light hole and an area smaller than that of the first light hole, and the second opening has the same shape as the second light hole and an area smaller than that of the second light hole.

[0011] In an embodiment, the light emitting end is an infrared LED lamp, and the light receiving end is packaged with a light sensor and a distance sensor.

[0012] In an embodiment, the buffer part is a sealing foam.

[0013] In an embodiment, the rubber sleeve is a silica rubber sleeve.

[0014] In an embodiment, the metal substrate is provided with a bending part in the middle.

[0015] The flexible light distance sensing sealing structure provided by the utility model can avoid the position deviation of the rubber sleeve caused by the accumulation of shape and position tolerances, prevent the rubber sleeve from abutting against the flexible screen film and causing the convex screen to arch, affect the appearance, and reduce the service life of the mobile phone screen. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0017] Figure 1This is a schematic cross-sectional view of a light distance sensing sealing structure under a flexible mobile phone screen in one embodiment of the present invention;

[0018] Figure 2 This is a partial cross-sectional schematic diagram of a light distance sensing sealing structure under a flexible mobile phone screen in one embodiment of the present invention;

[0019] Figure 3 This is a schematic structural diagram of a buffer member in one embodiment of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of a metal substrate in an embodiment of the present invention;

[0021] Figure 5 This is a schematic structural diagram of an optical distance sensor in one embodiment of the present invention;

[0022] Figure 6 This is a structural schematic diagram of the flexible mobile phone screen optical distance sensing sealing structure in one embodiment of the present invention after hiding the flexible screen component. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0024] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] See also Figures 1 to 4 and Figure 6 , Figure 1 This is a schematic cross-sectional view of a light distance sensing sealing structure under a flexible mobile phone screen in one embodiment of the present invention. Figure 2 This is a partial cross-sectional diagram of a light distance sensing sealing structure under a flexible mobile phone screen in one embodiment of the present invention. Figure 3 This is a schematic structural diagram of a buffer member in one embodiment of the present invention. Figure 4This is a schematic diagram of the structure of an optical distance sensor in one embodiment of the present invention. Figure 6 This is a structural schematic diagram of the flexible mobile phone screen optical distance sensing sealing structure in one embodiment of the present invention after hiding the flexible screen component. A light distance sensing sealing structure under a flexible mobile phone screen includes a middle frame 1, a flexible screen assembly 2, a PCB base plate 3, an optical distance sensor 4, a rubber sleeve 5, and a buffer 6. The middle frame 1 is provided with a receiving portion, and the flexible screen assembly 2 and the PCB base plate 3 are respectively mounted on opposite sides of the middle frame 1, enclosing an receiving portion to form an accommodating space; the flexible screen assembly 2 includes a flexible screen and a metal substrate 22, which is attached to the bottom of the flexible screen; the optical distance sensor 4 is accommodated in the accommodating space and fixedly mounted on the PCB base plate 3, and the metal substrate 22 is provided with a first optical distance hole 221 and a second optical distance hole 222 at positions corresponding to the optical distance sensor 4; the rubber sleeve 5 is wrapped around the outer periphery of the optical distance sensor 4, and the buffer 6 is arranged between the metal substrate 22 and the rubber sleeve 5 and is sealed to the metal substrate 22 and the rubber sleeve 5 respectively. The buffer 6 is provided with a first optical hole 61 and a second optical hole 62 at positions corresponding to the first optical distance hole 221 and the second optical distance hole 222, respectively.

[0026] In some embodiments, the rubber sleeve 5 is a silicone sleeve, and the buffer member 6 is a sealing foam.

[0027] The present invention is applied to a foldable screen mobile phone, wherein the bottom of the flexible screen includes a metal substrate. The metal substrate serves as the support layer of the flexible screen, providing stable support for the upper film material, ensuring that the screen does not deform or crack when bent or folded. Furthermore, to achieve the bending of the flexible screen, a bending portion 223 is provided in the middle of the metal substrate 22.

[0028] In an embodiment of the present utility model, in order to enable the optical distance sensor to send and receive light to the outside world, the metal substrate 22 is provided with a first optical distance hole 221 and a second optical distance hole 222 at corresponding positions of the optical distance sensor 4, and the size of the first / second optical distance hole is larger than the optical distance sensor 4, that is, the rubber sleeve 5 wrapped around the optical distance sensor 4 is facing the first / second optical distance hole. Due to the accumulation of tolerances of accessories, the rubber sleeve made of hard material can easily bulge through the first / second optical distance hole to hit the upper film of the flexible screen, resulting in the occurrence of the top screen phenomenon. Therefore, the embodiment of the present utility model needs to solve this technical problem.

[0029] In an embodiment of the present invention, the area of ​​the first light distance hole 221 is larger than the area of ​​the first light distance hole 61, the area of ​​the second light distance hole 222 is larger than the area of ​​the second light hole 62, and the buffer member 6 is partially sealed and connected to the metal substrate 22, and partially exposed at the relative position of the first light distance hole 221 and the second light distance hole 222.

[0030] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of an optical distance sensor in an embodiment of the present invention. The optical distance sensor 4 includes a light emitting end 41 and a light receiving end 42. The rubber sleeve 5 has a first opening 51 and a second opening 52 at corresponding positions on the light emitting end 41 and the light receiving end 42, respectively. The first opening 51 has the same shape as the first light hole 61 and is smaller in area than the first light hole 61. The second opening 52 has the same shape as the second light hole 62 and is smaller in area than the second light hole 62. The first opening 51, the first light hole 61, the first optical distance hole 211, and the second opening 52, the second light hole 62, and the second optical distance hole 222 are respectively opposite the light emitting end 41 and the light receiving end 42, forming paths for emitting and receiving light. The sizes of the first opening 51 and the second opening 52 are slightly smaller than those of the first light hole 61 and the second light hole 62 to prevent misalignment during sealing and blocking of the optical path, which would affect the sensor's ability to receive light.

[0031] In this embodiment, the light emitting end 41 is an infrared LED lamp (IR LED), and the light receiving end 42 is encapsulated with a light sensor 421 and a distance sensor 422. The light distance sensor 4 is a two-in-one sensor of a light sensor (Light-Sensor) and a distance sensor (P.Sensor). The light sensor realizes the photosensitivity function (such as automatically adjusting the brightness of the mobile phone), and the distance sensor realizes distance sensing (when the user makes a call, the distance sensor collects the distance between the mobile phone and the user's ear. If the distance between the mobile phone and the ear is close, the mobile phone screen goes out. When the mobile phone is away from the ear, the screen lights up).

[0032] In some embodiments, the first light hole 61 is circular, and the second light hole 62 is an irregular rectangle. The shapes of the first and second light holes 61 and 62 are determined by the infrared LEDs on the light emitting end 41 and the sensor packaged on the light receiving end 42. The size of the first and second openings and the first and second light holes is determined by the field-of-view (FOV) of the light, which can be determined based on customer acceptance criteria or industry standards.

[0033] To facilitate identification of the corresponding positions of the first optical hole 61 and the second optical hole 62 and improve assembly efficiency, a foolproof protrusion 63 is provided on the side of the buffer 6. In this embodiment, the foolproof protrusion is arched. In other embodiments, the foolproof protrusion can also have other shapes.

[0034] Compared with the existing technology, the light distance sensing sealing structure under the flexible mobile phone screen provided by the utility model arranges a sealing foam buffer between the rubber sleeve of the light distance sensor and the flexible screen. This can not only avoid the position deviation of the rubber sleeve due to the accumulation of form and position tolerances during installation, and thus prevent the rubber sleeve from pressing against the flexible screen film, causing the convex screen to bulge, affecting the appearance and reducing the life of the mobile phone screen.

[0035] The above embodiments are only used to provide a detailed description of the technical solutions of the present application. However, the description of the above embodiments is only used to help understand the methods of the embodiments of the present application and should not be understood as limiting the present application. Any changes or substitutions that can be easily thought of by those skilled in the art should be included in the scope of protection of the embodiments of the present application.

Claims

1. A flexible mobile phone screen under the optical distance sensing sealing structure, characterized by: It includes a middle frame, a flexible screen assembly, a PCB base plate, an optical distance sensor, a rubber sleeve and a buffer. The middle frame is provided with a accommodating portion. The flexible screen assembly and the PCB base plate are respectively installed on opposite sides of the middle frame, and are enclosed with the accommodating portion to form an accommodating space; the flexible screen assembly includes a flexible screen and a metal substrate, and the metal substrate is attached to the bottom of the flexible screen; the optical distance sensor is accommodated in the accommodating space and fixedly installed on the PCB base plate. The metal substrate is provided with a first optical distance hole and a second optical distance hole at corresponding positions of the optical distance sensor; the rubber sleeve is wrapped around the outer periphery of the optical distance sensor, and the buffer is arranged between the metal substrate and the rubber sleeve, and is sealed with the metal substrate and the rubber sleeve respectively. The buffer is provided with a first optical hole and a second optical hole at positions corresponding to the first optical distance hole and the second optical distance hole respectively.

2. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 1, characterized in that: The area of ​​the first optical distance hole is larger than that of the first light hole, the area of ​​the second optical distance hole is larger than that of the second light hole, and the buffer part is sealed and connected to the metal substrate, and is partially exposed at the position opposite to the first optical distance hole and the second optical distance hole.

3. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 1, characterized in that: The first light hole is circular in shape, and the second light hole is an irregular rectangle in shape.

4. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 1, characterized in that: The side surface of the buffer is provided with an anti-fouling protrusion.

5. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 1, characterized in that: The optical distance sensor comprises a light emitting end and a light receiving end, and the rubber sleeve is provided with a first opening and a second opening at corresponding positions of the light emitting end and the light receiving end, respectively.

6. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 5, characterized in that: The first opening has the same shape as the first light hole and has an area smaller than that of the first light hole. The second opening has the same shape as the second light hole and has an area smaller than that of the second light hole.

7. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 5, characterized in that: The light emitting end is an infrared LED lamp, and the light receiving end is encapsulated with a light sensor and a distance sensor.

8. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 1, characterized in that: The buffer component is sealing foam.

9. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 1, characterized in that: The rubber sleeve is a silicone sleeve.

10. The optical distance sensing sealing structure under the flexible mobile phone screen according to claim 1, characterized in that: A bending portion is provided in the middle of the metal substrate.

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