CN219145434U

CN219145434U - Testing device for narrow slit proximity induction detection

Info

Publication number: CN219145434U
Application number: CN202223608775.6U
Authority: CN
Inventors: 陈奇; 施怡鹏
Original assignee: Wuhan Silicon Integrated Co Ltd
Current assignee: Wuhan Silicon Integrated Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-06
Anticipated expiration: 2032-12-30

Abstract

The application relates to a testing device for narrow slit proximity sensing detection. The testing device comprises a narrow slit base, a narrow slit channel for a light signal to pass through, an optical sensor and a display screen; two ends of the narrow slit channel penetrate through two opposite sides of the narrow slit base; the optical sensor is positioned below the narrow slit base and is arranged right opposite to the narrow slit channel; the display screen is located above the narrow slit base and is movably connected with the narrow slit base. The method can test whether the sensitivity of the optical sensor is qualified under the condition of different narrow slit widths; meanwhile, the method and the device can be used for testing and evaluating whether the narrow slit width of the product is reasonable in design or not, so that detection of narrow slit proximity induction is realized.

Description

Testing device for narrow slit proximity induction detection

Technical Field

The application relates to the field of testing, in particular to a testing device for narrow slit proximity induction detection.

Background

With the development of electronic technology, terminal devices such as mobile phones are increasingly widely used. In the related art, terminal devices such as mobile phones realize brightness of a screen by means of an Ambient Light Sensor (ALS) or a distance sensor (PS). The installation scheme of the optical sensor generally comprises a narrow slit scheme and an under-screen scheme, wherein the narrow slit scheme generally comprises an optical sensor, a narrow slit mechanism and cover glass, the optical sensor comprises an optical transmitting end and an optical receiving end, the narrow slit mechanism comprises a transmitting channel and an incident channel which respectively correspond to the optical transmitting end and the optical receiving end, the cover glass is provided with ink openings corresponding to the transmitting channel and the incident channel, the optical transmitting end emits optical signals, the optical signals are transmitted to the outside of the terminal equipment through the transmitting channel on the narrow slit mechanism and the ink openings on the cover glass, are blocked by objects such as faces, ears and the like of people and then reflected, enter the terminal equipment through the ink openings on the cover glass and the incident channel, and are received by the optical receiving end, so that the situation that the objects are close to each other is determined, and the terminal equipment controls the brightness or the on-off of the display module.

With the continuous popularization of the full-screen mobile phone, the requirements of consumers on the full-screen mobile phone are higher and higher, the optical sensor is usually located below the display screen, the narrow slit mechanism is located between the optical sensor and the display screen, a narrow slit corresponding to the emitting channel and the incident channel in the narrow slit mechanism is reserved at the edge of the display screen, the effective width of the emitting channel and the incident channel in the narrow slit mechanism can be influenced by the width of the narrow slit, the signal intensity received by the optical sensor is further influenced, and the sensitivity of the optical sensor under different narrow slit widths is not detected by the device in the related technology, so that the product quality is influenced.

Disclosure of Invention

In order to be able to test the sensitivity of the optical sensor under different slit widths, the present application provides a test device for slit proximity sensing detection.

The application provides a testing arrangement for narrow slit approach response detects adopts following technical scheme:

a testing device for detecting the approach of a narrow slit comprises a narrow slit base, a narrow slit channel for a light signal to pass through, an optical sensor and a display screen; two ends of the narrow slit channel penetrate through two opposite sides of the narrow slit base; the optical sensor is positioned below the narrow slit base and is arranged right opposite to the narrow slit channel; the display screen is located above the narrow slit base and movably connected with the narrow slit base, so that the relative position of the narrow slit channel and the display screen is adjustable.

By adopting the technical scheme, during testing, the optical sensor emits optical signals, the optical signals pass through the narrow slit channel to be transmitted to the outside, and are reflected after encountering an object and return to the optical sensor through the narrow slit channel. The display screen moves relative to the narrow slit base, the width of the narrow slit is adjusted, and whether the sensitivity of the optical sensor under the condition of different narrow slit widths is qualified is tested; meanwhile, the method and the device can be used for testing and evaluating whether the narrow slit width of the product is reasonable in design or not, so that detection of narrow slit proximity induction is realized.

Preferably, the display screen and/or the slit base can be driven by the driving mechanism to move along the width direction of the slit channel, so that the display screen is close to or far away from the other end of the slit channel.

By adopting the technical scheme, the display screen and/or the narrow slit base are/is driven by the driving mechanism to move along the width direction of the narrow slit channel, so that the width of the narrow slit is adjusted.

Preferably, the testing device comprises a base, the slot base is directly or indirectly fixed on the base, the driving mechanism comprises a linear displacement table, the linear displacement table comprises a displacement table body and a sliding seat, the displacement table body is fixed on the base, the sliding seat is arranged on the displacement table body in a sliding manner, and the display screen is fixed on the sliding seat.

By adopting the technical scheme, the sliding seat on the linear displacement table moves, so that the display screen is driven to move along the width direction of the narrow slit channel.

Preferably, a chute is formed in one end, close to the narrow slit base, of the display screen, and one end, close to the display screen, of the narrow slit base is inserted into the chute and is in sliding fit with the chute.

Through adopting above-mentioned technical scheme, display screen and narrow slit base sliding fit can improve the accuracy when the display screen removes.

Preferably, the testing device further comprises a supporting piece located between the base and the narrow slit base, one end of the supporting piece is connected with the base, and the other end of the supporting piece is connected with the narrow slit base.

Through adopting above-mentioned technical scheme, design has support piece between slit base and the base, makes the space of slit base downside great, the optical sensor of easy to assemble.

Preferably, the testing device further comprises cover plate glass positioned on the display screen, and the cover plate glass is provided with an ink window corresponding to the narrow slit channel.

Through adopting above-mentioned technical scheme, in terminal equipment such as cell-phone, in order to improve performances such as luminousness, can add glass cover and printing ink and window generally, design glass cover and printing ink in this testing arrangement after windowing, can further imitate narrow slit structure and optical sensor's in-service use environment, improve detection precision.

Preferably, the testing device further comprises a limiting part capable of adjusting the position of the testing device along the width direction of the narrow slit, the limiting part is located on one side, away from the optical sensor, of the narrow slit base and can be in contact with one end of the cover plate glass, and when the limiting part is in contact with the cover plate glass, the ink window on the cover plate glass corresponds to the narrow slit channel.

Through adopting above-mentioned technical scheme, through the position of adjusting the locating part, but control cover glass's position guarantees that cover glass's printing ink window and narrow slit passageway are corresponding when testing.

Preferably, the limiting piece is slidably arranged on the slot base, a strip-shaped hole is formed in the limiting piece along the width direction of the slot, a connecting hole corresponding to the strip-shaped hole is formed in the slot base, and fasteners for relatively fixing and loosening the limiting piece and the slot base are inserted into the strip-shaped hole and the connecting hole.

By adopting the technical scheme, the fastener is matched with the strip-shaped hole and the connecting hole, so that the relative fixation and loosening of the limiting piece and the narrow slit base can be realized.

Preferably, the testing device further comprises at least one elevating sheet, wherein the elevating sheet is positioned between the optical sensor and the slit base, the elevating sheet is provided with a through hole for the light signal to pass through, and two ends of the through hole are aligned with the slit channel and the optical sensor respectively.

By adopting the technical scheme, the number of the heightening sheets is adjusted, so that the distance between the optical sensor and the cover plate glass is adjusted, namely the distance between the optical sensor and the air gap is adjusted, and whether the sensitivity of the optical sensor is qualified or not is tested under different air gaps.

Preferably, the optical sensor comprises a sensor main board, a signal transmitting end and a signal receiving end, wherein the sensor main board is provided with a mounting hole, and the elevating sheet is provided with a guide hole coaxial with the mounting hole.

Drawings

Fig. 1 is a schematic view of the structure of the embodiment of the present application without cover glass and without inspection.

FIG. 2 is a schematic view of the structure of the embodiment of the present application without cover glass and tested.

Fig. 3 is a side view of an embodiment of the present application with cover glass added and tested.

Fig. 4 is a schematic view of the structure of the embodiment of the present application when cover glass is attached and not detected.

Fig. 5 is a schematic view of the structure of the cover glass according to the embodiment of the present application during inspection.

Reference numerals illustrate: 1. a slot base; 2. a base; 3. a support; 4. a slot passage; 41. a narrow slit emission channel; 42. a slot receiving channel; 6. a driving mechanism; 61. a linear displacement stage; 62. a displacement table body; 63. a slide; 7. a display screen; 8. cover glass; 81. opening a window by using ink; 9. a limiting piece; 91. a bar-shaped hole; 10. a connection hole; 11. a heightening sheet; 12. a through hole; 13. an optical sensor; 131. a sensor motherboard; 132. a signal transmitting terminal; 133 a signal receiving end; 134. and (5) mounting holes.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.

The embodiment of the application discloses a testing device for narrow slit proximity induction detection.

As shown in fig. 1 and 2, the test device comprises a narrow slit base 1.

In this embodiment, the testing device further comprises a base 2, and the slot base 1 is directly or indirectly fixed on the base 2. In this embodiment, the testing device further includes a supporting member 3 located between the base 2 and the slot base 1, one end of the supporting member 3 is connected to the base 2, and the other end of the supporting member 3 is connected to the slot base 1.

The supporting piece 3 can select a supporting column, a supporting rod, a supporting seat and other schemes, and the supporting piece 3 can be connected with the base 2 and the narrow slit base 1 by adopting threaded connection and clamping connection, and can also be connected by adopting a mode of waiting for an intermediate part through a fastener, and of course, an integrated structure can also be adopted.

Of course, as another alternative, the slot base 1 may be directly fixed to the base 2, or the structure of the base 2 may be omitted.

As shown in fig. 2 and 3, the present test device includes a slit channel 4 through which an optical signal passes.

In this embodiment, two ends of the slot passage 4 penetrate through two opposite sides of the slot base 1.

Specifically, the slot passage 4 may include a slot-emitting passage 41 and a slot-receiving passage 42, each of the slot-emitting passage 41 and the slot-receiving passage 42 penetrating opposite sides of the slot base 1.

Preferably, in the present embodiment, the slit base 1 is disposed in the horizontal direction, and the slit emission channel 41 and the slit receiving channel 42 penetrate the upper side and the lower side of the slit base 1 in the vertical direction.

Alternatively, the slot base 1 may be disposed along a vertical direction or other desired directions, and the slot channels 4 may penetrate through two sides of the slot base 1.

As shown in fig. 2 and 3, the present test device includes an optical sensor 13, and the optical sensor 13 is located below the slit base 1 and is disposed opposite to the slit channel 4.

As shown in fig. 2 and 3, the present test apparatus includes a display 7. The display screen 7 is located above the slot base 1 and is movably connected with the slot base 1.

The movement of the display 7 can be effected manually. Of course, the following scheme may also be adopted, where the testing device further includes a driving mechanism 6, and the driving mechanism 6 can drive the display screen 7 and/or the slot base 1 to move along the width direction of the slot channel 4, so that the display screen 7 is close to or far from the other end of the slot channel 4.

In this embodiment, the driving mechanism 6 is disposed on the base 2, and the driving mechanism 6 can drive the display screen 7 to move along the width direction of the slot channel 4, so that the display screen 7 is close to or far from the other end of the slot channel 4. The other end of the slit channel 4 refers to the end of the slit channel 4 facing away from the optical sensor 13. Alternatively, the display 7 may be fixed, while the slot base 1 is movable and moves under the action of the drive mechanism 6. Alternatively, the display 7 and the slot base 1 are both movable and driven by the driving mechanism 6.

In this embodiment, the driving mechanism 6 includes a linear displacement table 61, the linear displacement table 61 includes a displacement table body 62 and a sliding seat 63, the displacement table body 62 is fixed on the base 2, the sliding seat 63 is slidably disposed on the displacement table body 62, the display screen 7 is fixed on the sliding seat 63, and an output end of the linear displacement table 61 is connected with the sliding seat 63 to push the display screen 7 to slide.

Further, when the slit base 1 is movable, the linear displacement stage 61 may also be connected to the slit base 13.

Instead of the linear displacement table 61, the driving mechanism 6 may be a hydraulic cylinder or the like, and may be configured to drive the display 7 to move linearly.

It should be noted that, in addition to the complete base solution, the base 2 mentioned in the present application may also include a plurality of split-type bases, for example, in this embodiment, the driving mechanism 6 and the slot base 1 are fixed on the same base, and as other solutions, the driving mechanism 6 and the slot base 1 may also be fixed on different bases.

In this embodiment, a chute is provided at one end of the display screen 7 close to the slot base 1, and one end of the slot base 1 close to the display screen 7 is inserted into the chute and slidably engaged with the chute.

In this embodiment, the whole structure of the display screen 7 is made of the same material, and one end close to the slot base 1 is a complete end, and as other schemes, the display screen 7 can be designed to be only a boss corresponding to the length of the slot channel 4 near the slot base 1, and the boss is designed to be the same structure as the mobile phone display screen 7, or the size of the display screen 7 is directly reduced, and the driving mechanism 6 is fixed on the slot base 1, or can be directly fixed on the slot base 1 to drive the display screen 7 to move along the width direction of the slot channel 4.

As shown in fig. 4 and 5, the testing device further comprises a cover glass 8 positioned on the display screen 7, and an ink window 81 corresponding to the narrow slit channel 4 is formed on the cover glass 8. The cover glass 8 can be used with different thicknesses and different sizes of ink windows 81 according to practical needs.

In this embodiment, since the slit base 1 and the display screen 7 are both disposed in the horizontal direction, the cover glass 8 is directly placed on the upper surface of the display screen 7.

When the slot base 1 and the display screen 7 are arranged along other directions, the cover glass 8 can be connected with the display screen 7.

In this embodiment, the testing device further includes a limiting member 9 capable of adjusting its position along the width direction of the slot, where the limiting member 9 is located on a side of the slot base 1 away from the optical sensor 13 and capable of contacting with one end of the cover glass 8, and when the limiting member 9 contacts with the cover glass 8, the ink window on the cover glass 8 corresponds to the slot channel.

Preferably, the limiting piece 9 is slidably arranged on the slot base 1, the limiting piece 9 is provided with a strip-shaped hole 91 along the width direction of the slot, the slot base 1 is provided with a connecting hole 10 corresponding to the strip-shaped hole 91, the strip-shaped hole 91 and the connecting hole 10 are internally inserted with a fastener which can enable the limiting piece 9 and the slot base 1 to be relatively fixed and loosened, the fastener can adopt a scheme such as a bolt, the rod part of the bolt is in threaded connection with the connecting hole 10, the head part of the bolt is abutted against the slot base 1, the relative fixation of the limiting piece 9 and the slot base 1 is realized, and when the adjustment is needed, the bolt is unscrewed.

In this embodiment, the limiting member 9 adopts a thin plate structure, and as other schemes, the limiting member 9 may also adopt a rod-like or other structures, and only needs to be contacted with one end of the cover glass 8 to realize limiting.

Besides adopting the sliding structure, the limiting piece 9 can also be directly provided with a plurality of fixing holes distributed along the width direction of the narrow slit channel 4 on the narrow slit base 1, the limiting piece 9 is connected with different fixing holes, and the position of the limiting piece 9 can be adjusted. Or the limiting piece 9 is designed to be of a magnetic structure, and the limiting piece 9 is connected with the narrow slit base 1 through magnetism.

As shown in fig. 2 and 3, the testing device further includes at least one elevating sheet 11, where the elevating sheet 11 is preferably a transparent structure, the elevating sheet 11 is located between the optical sensor 13 and the slot base 1, the elevating sheet 11 has a through hole 12 through which an optical signal passes, and two ends of the through hole 12 are aligned with the slot channel 4 and the optical sensor 13, respectively. The optical sensor 13 includes a sensor main board 131, a signal transmitting end 132 and a signal receiving end 133, the sensor main board 131 is provided with a mounting hole, and the elevating sheet 11 is provided with a guide hole coaxial with the mounting hole.

Wherein, the elevating sheet 11 can be designed into a single sheet or a plurality of sheets, and the elevating sheets 11 can be different in thickness, and the distance between the sensor main board 131 and the cover glass 8, i.e. the distance between the air gaps can be adjusted by adjusting the number of elevating sheets 11, so as to test whether the sensitivity of the optical sensor 13 is qualified or not under different air gaps.

The working principle of the application is as follows:

the optical sensor 13 emits an optical signal, and the optical signal is transmitted to the outside through the narrow slit channel 4, reflected by an object, and returned to the optical sensor 13 through the narrow slit channel 4.

When the influence of different slit widths on the sensitivity of the optical sensor 13 is required to be tested, the linear displacement table 61 drives the display screen 7 to move along the width direction of the slit channel 4, so that the width of the slit is adjusted, and whether the sensitivity of the optical sensor 13 under the condition of different slit widths is qualified is tested; meanwhile, the method and the device can be used for testing and evaluating whether the narrow slit width of the product is reasonable in design, so that detection of narrow slit proximity induction is realized;

when the influence of different air gaps on the sensitivity of the optical sensor 13 is required to be tested, different numbers of raised pieces 11 can be placed between the sensor main board 131 and the narrow slit base 1, so that the distance between the sensor main board 131 and the cover glass 8 is adjusted, namely the distance between the air gaps is adjusted, and whether the sensitivity of the optical sensor 13 is qualified or not is tested under the different air gaps; meanwhile, the method and the device can be used for testing and evaluating whether the design of the air gap of the product is reasonable or not, so that detection of narrow slit proximity induction is realized. The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The testing device for narrow slit proximity sensing detection is characterized by comprising a narrow slit base (1), a narrow slit channel (4) for passing an optical signal, an optical sensor (13) and a display screen (7); two ends of the narrow slit channel (4) penetrate through two opposite sides of the narrow slit base (1); the optical sensor (13) is positioned below the narrow slit base (1) and is opposite to the narrow slit channel (4); the display screen (7) is located above the narrow slit base (1) and is movably connected with the narrow slit base (1), so that the relative position of the narrow slit channel (4) and the display screen (7) is adjustable.

2. The testing device for slot proximity sensing detection according to claim 1, further comprising a driving mechanism (6), wherein the driving mechanism (6) can drive the display screen (7) and/or the slot base (1) to move along the width direction of the slot channel (4), so that the display screen (7) is close to or far from the other end of the slot channel (4).

3. The test device for slot proximity sensing detection according to claim 2, characterized in that the test device comprises a base (2), the slot base (1) is directly or indirectly fixed on the base (2), the driving mechanism (6) comprises a linear displacement table (61), the linear displacement table (61) comprises a displacement table body (62) and a sliding seat (63), the displacement table body (62) is fixed on the base (2), the sliding seat (63) is slidably arranged on the displacement table body (62), and the display screen (7) is fixed on the sliding seat (63).

4. A testing device for slot proximity sensing detection according to claim 3, characterized in that a chute is provided at one end of the display screen (7) close to the slot base (1), and one end of the slot base (1) close to the display screen (7) is inserted into the chute and is in sliding fit with the chute.

5. A test device for slot proximity sensing detection as claimed in claim 3, further comprising a support (3) between the base (2) and the slot base (1), one end of the support (3) being connected to the base (2) and the other end of the support (3) being connected to the slot base (1).

6. The testing device for slot proximity sensing detection according to claim 1, further comprising a cover glass (8) located on the display screen (7), wherein an ink window (81) corresponding to the slot channel (4) is provided on the cover glass (8).

7. The test device for slot proximity sensing detection according to claim 6, further comprising a limiting member (9) capable of adjusting its position along the slot width direction, wherein the limiting member (9) is located at a side of the slot base (1) facing away from the optical sensor (13) and capable of contacting one end of the cover glass (8), and when the limiting member (9) contacts the cover glass (8), an ink window (81) on the cover glass (8) corresponds to the slot channel (4).

8. The testing device for detecting the proximity of the narrow slit according to claim 7, wherein the limiting piece (9) is slidably arranged on the narrow slit base (1), a strip-shaped hole (91) is formed in the limiting piece (9) along the width direction of the narrow slit, a connecting hole (10) corresponding to the strip-shaped hole (91) is formed in the narrow slit base (1), and fasteners for relatively fixing and releasing the limiting piece (9) and the narrow slit base (1) are inserted into the strip-shaped hole (91) and the connecting hole (10).

9. The test device for slot proximity sensing detection according to any one of claims 1-8, further comprising at least one raised pad (11), said raised pad (11) being located between the optical sensor (13) and the slot base (1), said raised pad (11) having a through hole (12) for the passage of an optical signal, said through hole (12) having two ends aligned with the slot channel (4) and the optical sensor (13), respectively.

10. The device for detecting the proximity induction of the narrow slit according to claim 9, wherein the optical sensor (13) comprises a sensor main board (131), a signal transmitting end (132) and a signal receiving end (133), a mounting hole (134) is formed in the sensor main board (131), and a guide hole coaxial with the mounting hole (134) is formed in the heightening sheet (11).