CN211150376U

CN211150376U - Switch display device

Info

Publication number: CN211150376U
Application number: CN202020154843.8U
Authority: CN
Inventors: 苗永平; 刘维慧; 陈达; 马瑞祥; 代坤; 张振
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2020-07-31
Anticipated expiration: 2030-02-07

Abstract

The utility model belongs to the field of switch display, in particular to a switch display device, which comprises a display unit, a supporting unit and a base unit which are arranged from top to bottom in sequence; the display unit comprises a display device, a combined lens and a display device and combined lens supporting part; the display device is used for providing a display image; the combined lens is positioned above the display device and used for carrying out integral optical amplification and output on a display image; the display device and the combined lens are both positioned at the inner side of the display device and the combined lens supporting part; the display device and combined lens support member includes a first support portion for providing structural support to the combined lens and a second support portion for providing structural support to the display device. The utility model discloses a carry out whole enlargies display device's picture to guarantee the display effect at picture edge, improve the homogeneity of picture display.

Description

Switch display device

Technical Field

The utility model belongs to the switch shows the field, especially relates to a switch display device.

Background

Chinese patent application publication No. CN104779107A discloses a frameless display device, and in this patent document, a small button display switch is provided, which can realize electrical on-off control and full screen display.

However, the frameless display device provided in this patent document has the following drawbacks:

the device forms a lens by using an edge arc structure of a flat transparent material, locally amplifies the light rays at the edge of a display picture, has obvious aberration, shows picture edge distortion and dispersion, gives the impression of rough picture, strong granular sensation and the like to people, and has poor visual effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switch display device, through carrying out whole enlargeing with display device's picture to guarantee the display effect at picture edge, thereby improve the holistic homogeneity of display screen.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the switch display device comprises a display unit, a supporting unit and a base unit which are sequentially arranged from top to bottom;

the display unit comprises a display device, a combined lens and a display device and combined lens supporting part;

the display device is configured for providing a display image;

the combined lens is positioned above the display device and is configured to perform overall optical amplification on a display image and output the display image;

the display device and the combined lens are both positioned at the inner side of the display device and the combined lens supporting part;

the display device and combined lens support member comprises a first support portion for providing structural support to the combined lens, and a second support portion for providing structural support to the display device;

the first supporting part and the second supporting part are respectively connected to the inner side walls of the display device and the combined lens supporting part.

Preferably, the combined lens comprises a concave lens and a convex lens;

the concave lens is positioned above the display device, and the convex lens is positioned above the concave lens.

Preferably, the combined lens further comprises an optical glue layer located between the concave lens and the convex lens;

the upper surface of the optical adhesive layer is connected with the lower surface of the convex lens, and the lower surface of the optical adhesive layer is connected with the upper surface of the concave lens.

Preferably, the concave lens includes a biconcave lens or a plano-concave lens, and the convex lens includes a biconvex lens or a plano-convex lens.

Preferably, the display unit further comprises a transparent protective cover positioned over the combined lens;

the periphery of the lower surface of the transparent protective cover is attached to the upper surface of the combined lens support member and display device.

Preferably, the transparent protective cover is made of glass or an ABS plastic material.

Preferably, the display device comprises a liquid crystal display or L ED display.

Preferably, the periphery of the lower surface of the transparent protective cover is provided with a light absorbing coating.

Preferably, the display device and combined lens support member includes a support member bottom plate and a support member side plate; wherein:

the first supporting part and the second supporting part are respectively connected to the inner side wall of the supporting part side plate;

first supporting part adopts support bar or support groove structure, just:

the partial or whole edge of the lower side of the combined lens is positioned on the upper surface of the supporting strip or positioned in the supporting groove;

the second supporting part adopts a supporting strip or a supporting groove structure, and:

the lower part of the display device is partially or completely located on the upper surface of the supporting bar or inside the supporting groove.

Preferably, the supporting unit includes a supporting unit top plate and a supporting unit side plate;

the upper surface of the top plate of the support unit and the display device are connected to the bottom surface of the combined lens support member;

a switch cap pressing seat is arranged in the middle of the lower surface of the top plate of the supporting unit;

a switch cap limiting groove is formed in the switch cap pressing seat;

the base unit comprises a base body, a circuit board, a button switch, a rubber switch cap, a socket and a connecting wire harness;

the base body comprises a base body bottom plate and a base body side plate;

the circuit board is arranged on the base body bottom plate;

the button switch and the socket are respectively arranged on the circuit board;

one end of the connecting wire harness is connected to the socket, and the other end of the connecting wire harness is connected to the lower surface of the display device;

the rubber switch cap is sleeved on the button switch and integrally wraps the button switch;

the top end of the rubber switch cap extends into the switch cap limiting groove;

at least two groups of buckle units are arranged between the side plate of the support unit and the side plate of the base body;

the clamping unit comprises a clamp arranged at the bottom of a side plate of the supporting unit and a clamping block arranged at the side part of the side plate of the base body, the clamp is provided with a clamping opening for the clamping block to insert, and the length of the clamping opening along the vertical direction is greater than that of the clamping block along the vertical direction;

the top plate of the support unit and the bottom surfaces of the display device and the combined lens support member are respectively provided with a connecting wire harness penetration hole.

The utility model has the advantages of as follows:

as described above, the present invention discloses a switching display device which performs an entire optical amplification and output of a picture outputted from a display device by using a combined lens, and thus has a good picture display uniformity. In addition, combination formula lens still has aberration compensation and corrects the function, consequently, makes the utility model provides a device can obtain comfortable picture display effect.

Drawings

Fig. 1 is a schematic structural diagram of a switch display device in embodiment 1 of the present invention;

fig. 2 is a front view of a switch display device in embodiment 1 of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of the switch display device of FIG. 2;

fig. 4 is a side view of a switch display device according to embodiment 1 of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of the switch display device of FIG. 4;

fig. 6 is a schematic structural view of a combined lens in embodiment 1 of the present invention;

fig. 7 is a schematic structural view of a display device and a combined lens supporting member according to embodiment 1 of the present invention;

fig. 8 is a plan view of a display device and a combined lens holder according to embodiment 1 of the present invention;

fig. 9 is a bottom view of the display device and the combined lens holder according to embodiment 1 of the present invention;

fig. 10 is a schematic side view of a supporting unit in embodiment 1 of the present invention;

fig. 11 is a schematic structural view of another side of the supporting unit in embodiment 1 of the present invention;

fig. 12 is a front view of the supporting unit in embodiment 1 of the present invention;

FIG. 13 is a cross-sectional view taken along line C-C of the support unit of FIG. 12;

fig. 14 is a schematic structural view of a base unit in embodiment 1 of the present invention;

fig. 15 is a plan view of a base unit in embodiment 1 of the present invention;

fig. 16 is a bottom view of the base unit in embodiment 1 of the present invention;

fig. 17 is a schematic structural view of a rubber switch cap in embodiment 1 of the present invention;

fig. 18 is a schematic structural view of a switch display device in embodiment 2 of the present invention;

fig. 19 is a side view of a switch display device according to embodiment 2 of the present invention;

FIG. 20 is a cross-sectional view taken along line D-D of the switch display device of FIG. 19;

fig. 21 is a schematic structural view of a combined lens in embodiment 2 of the present invention;

fig. 22 is a schematic structural view of a switch display device according to embodiment 3 of the present invention;

fig. 23 is a side view of a switch display device according to embodiment 3 of the present invention;

FIG. 24 is a cross-sectional view taken along line E-E of the switch display device of FIG. 19;

fig. 25 is a schematic structural view of a combined lens according to embodiment 3 of the present invention;

fig. 26 is a schematic diagram of a light path display in an embodiment of the present invention;

wherein, 1-display unit, 2-support unit, 3-base unit, 4-display device, 5-combined lens, 6-display device and combined lens support component, 7-concave lens, 8-convex lens, 9-first support component, 10-second support component, 10A-first blocky support component, 10B-second blocky support component, 11-optical glue layer, 12-support component bottom plate, 13-support component side plate, 14A, 14B-side plate, 15A, 15B-support strip, 16A, 16B-spacing groove, 17-connecting harness perforation, 18-through hole, 19-support unit top plate, 20-support unit side plate, 21-bar groove, 22-connecting harness perforation, 23-switch cap pressing seat, 24-switch cap limit groove, 25-buckle, 26-base body, 27-circuit board, 28-button switch, 29-rubber switch cap, 30-socket, 31-connecting wiring harness, 32-base body bottom plate, 33-base body side plate, 34-clamping block, 35-clamping block, 36-annular rubber groove and 37-transparent protective cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

example 1

As shown in fig. 1 to 5, embodiment 1 of the present invention describes a switch display device, which includes a display unit 1, a supporting unit 2, and a base unit 3 sequentially arranged from top to bottom.

The display unit 1 is used to implement a screen display function.

The support unit 2 mainly provides a structural support function, including support with the display unit 1 and the base unit 3.

The base unit 3 is used for providing an internal and external electrical connection interface of the switch display device, and in addition, the base unit 3 also provides functions of switch on-off control, stroke control and the like.

The specific structure of each of the above units is described in further detail below.

As shown in fig. 3 and 5, the display unit 1 includes a display device 4, a combined lens 5, and a display device and combined lens-supporting member 6. Among them, the display device 4 is used to output a display image.

The display device 4 in this embodiment may be a flat display screen such as a liquid crystal display screen or an L ED display screen.

The combined lens 5 is located above the display device 4, and functions such that, when the display device 4 outputs a display image, the combined lens 5 can optically magnify and output the displayed image as a whole.

In addition, the combined lens 5 also has aberration compensation and correction functions to obtain full-screen and comfortable image display effect.

The embodiment is beneficial to improving the integral uniformity of picture display, avoids distortion and dispersion of the edge of the picture, gives impressions of rough picture, strong granular sensation and the like to people, and improves the visual display effect.

In a preferred mode, the combined lens 5 includes a concave lens 7 and a convex lens 8, wherein the concave lens 7 is located above the display device 4, the convex lens 8 is located above the concave lens 7, and the optical path thereof is shown in fig. 26, and the optical principle is as follows:

the light emitted by the display device 4 is diffused towards the periphery after passing through the concave lens 7, the display picture is enlarged towards the periphery, the light is changed into collimated light after passing through the convex lens 8, and the picture seen when the human eyes vertically observe from top to bottom is the enlarged picture.

More specifically, this embodiment 1 provides a combination structure of a concave lens and a convex lens as shown in fig. 6, that is:

the concave lens 7 is a biconcave lens, and the convex lens 8 is a biconvex lens.

The display device 4 and the combined lens 5 are both located inside a display device and combined lens support part 6, which display device and combined lens support part 6 is used to provide the display device 4 and combined lens 5 with the relevant mounting structure.

As shown in fig. 5, the display device and combined lens support part 6 includes a first support part 9 and a second support part 10. Wherein the first support part 9 is used to support the combined lens 5 and the second support part 10 is used to support the display device 4.

The first support part 9 in this embodiment can provide separate support for the concave lens 7 and the convex lens 8.

Of course, in consideration of the product miniaturization design and the product assembly convenience, the combined lens 5 is preferably designed as a cemented lens, that is, an optical cement layer 11 is provided between the concave lens 7 and the convex lens 8 to achieve the connection of the concave lens 7 and the convex lens 8.

The upper surface of the optical adhesive layer 11 is connected to the lower surface of the convex lens 8, and the lower surface is connected to the upper surface of the concave lens 7.

The first support 9 preferably provides structural support to the combined lens 5 (concave lens 7 and convex lens 8) as a whole.

The first and

second support parts

9 and 10 are respectively attached to inner sidewalls of the display device and combined lens support part 6 so as to accomplish the installation of the first and

second support parts

9 and 10.

The first support part, the second support part and the combined lens support part are preferably integrally formed.

As shown in fig. 7 to 9, the display device and the combined lens support member 6 are preferably of a square structure, and accordingly, the display device 4 (light emitting surface), the combined lens 5, and the like are also of a square structure.

Of course, the display device and the combined lens holder part 6 may also be designed to be circular. The shape of the display device-combined lens support member 6 is related to the shape of the display device 4 (light emitting surface), combined lens 5, and the like.

As shown in fig. 7, the display device and combined lens support member 6 includes a support member bottom plate 12 and a support member side plate 13, and the support member side plate 13 is composed of four side plates connected in sequence for the square structure.

The first supporting part 9 may adopt a supporting strip structure, that is, the first supporting part 9 includes two supporting strips, 15A and 15B respectively.

As can be seen in fig. 5, the cross-section of the support bars 15A, 15B is preferably square.

As shown in fig. 7 and 8, the support bars 15A, 15B are disposed on a set of opposing side plates, such as

side plates

14A, 14B. Specifically, the supporting bar 15A is disposed on the side plate 14A, and the supporting bar 15B is disposed on the side plate 14B.

The edges of a group of opposite sides (for example, the left side and the right side) of the lower side of the combined lens 5 are respectively located on the upper surfaces (attached to each other) of the supporting

bars

15A and 15B, and the combined lens 5 is connected with the supporting

bars

15A and 15B by glue.

In order to ensure the contact effect of the combined lens 5 and the supporting

strips

15A and 15B, a flat surface may be designed at the connecting (e.g. left and right) edge of the lower surface of the concave lens 7, and the extension direction of the flat surface is the same as that of the supporting strips.

As shown in fig. 7 and 8, the second support portion 10 has a support groove structure, that is, the second support portion 10 includes a first block-shaped support portion 10A and a second block-shaped support portion 10B, and both the block-shaped support portions have a square cross section.

The first block support portion 10A is attached to the side plate 14A, and the second block support portion 10B is attached to the side plate 14B.

The first block support portion 10A and the second block support portion 10B are parallel to each other.

A display device limiting groove 16A is formed in the first block support portion 10A, a display device limiting groove 16B is formed in the second block support portion 10B, and the limiting groove 16A and the limiting groove 16B are arranged opposite to each other.

The retaining groove 16A and the retaining groove 16B preferably both have a C-shaped configuration. Two opposite end portions (e.g., left end portion and right end portion) of the display device 4 are respectively located in the

stopper grooves

16A and 16B (attached to each other) and are connected by glue.

The size and distance of the limiting

grooves

16A and 16B are designed to ensure that two end portions (left and right end portions) of the display device 4 are just placed in the limiting

grooves

16A and 16B, so as to prevent the display device 4 from sliding in the front-back or left-right directions.

Of course, the first supporting portion 9 may also adopt the supporting groove structure shown by the second supporting portion 10, and similarly, the second supporting portion 10 may also adopt the supporting strip structure shown by the first supporting portion 9, and details of various situations are not described here.

Since the display device 4 (light emitting surface), the combined lens 5, the display device, and the combined lens support member 6 can also be designed to be circular, the support member side plate 13 can also be designed to be a cylindrical side plate.

In this case, the first support part 9 may still be constructed as a support strip, which is not a straight support strip as mentioned above, but a ring-shaped support strip surrounding the support part side plate 13 around the circumference thereof, and the lower edge of the combined lens 5 is located on the surface of the support strip.

Similarly, the second supporting portion 10 may still adopt a supporting groove structure, and unlike the above block-shaped supporting portion, the second supporting portion 10 adopts a ring-shaped supporting portion, and an annular supporting groove is formed on the upper surface of the ring-shaped supporting portion.

The edges of the display device 4 are located in the annular support grooves (in contact with each other) and are connected to the annular support grooves by means of glue.

As shown in fig. 8, a connection harness insertion hole 17 is further provided in the support member bottom plate 12, and the connection harness insertion hole 17 facilitates insertion of a connection harness 31 led out from the base unit 3 and is connected to the lower surface of the display device 4.

The connection harness penetration holes 17 are preferably provided in two and symmetrical positions for easy installation.

In addition, in order to reduce the weight of the combined lens supporting member 6 and the display device, the present embodiment 1 is further designed to be hollowed out on the supporting member base plate 12, for example, to design a through hole 18 on the supporting member base plate 12.

As shown in fig. 10 to 13, the supporting unit 2 includes a supporting unit top plate 19 and supporting unit side plates 20. The support unit 2 is preferably square, but can of course also be designed as a round structure.

The upper surface of the top plate 19 of the support unit and the display device are attached to the bottom surface of the combined lens support unit 6 (i.e., the lower surface of the bottom plate 12 of the support unit), for example, by adhesive bonding.

As shown in fig. 10, two parallel strip-shaped grooves 21 are formed on the upper surface of the top plate 19 of the supporting unit, and the strip-shaped grooves 21 are located adjacent to the corresponding edges of the top plate 19 of the supporting unit at a distance from the corresponding edges.

The purpose of the strip-shaped groove 21 is to facilitate the connection of the top plate 19 of the support unit to the bottom plate 12 of the support member. Specifically, glue is added into the strip-shaped groove 21, and then the display unit 1 is directly pressed on the supporting unit 2.

The connection mode is simple to operate, the connection effect is good, and the phenomenon of glue overflow is effectively avoided.

Of course, the top plate 19 of the supporting unit in this embodiment may also be circular, the strip-shaped groove 21 may also be replaced by an annular groove, and glue is added into the annular groove, so that the quick connection between the display unit 1 and the supporting unit 2 can also be realized.

The support unit top plate 19 is also provided with a connection harness insertion hole 22 for allowing a connection harness 31 drawn out from the base unit 3 to be inserted therethrough.

The connecting harness insertion holes 22 are preferably two and symmetrically arranged in the present embodiment, so that the installation is facilitated.

A switch cap pressing seat 23 is arranged in the middle of the lower surface of the top plate 19 of the supporting unit, and the switch cap pressing seat 23 protrudes downwards from the surface (i.e. the lower surface of the top plate 19 of the supporting unit).

The switch cap pressing base 23 functions to apply a certain pressure downward to the rubber switch cap 29.

As shown in fig. 11 to 13, a switch cap limiting groove 24 is formed on the switch cap pressing base 23, and the switch cap limiting groove 24 may be square or circular, and plays a limiting role when the rubber switch cap 29 extends into the switch cap limiting groove 24.

As shown in fig. 11, two opposite buckles, for example, the buckle 25, are disposed at the bottom of the supporting unit side plate 20, so as to be conveniently connected to the clamping block disposed on the base unit 3, and facilitate limiting the stroke of the supporting unit 2.

As shown in fig. 5, 14 to 16, the base unit 3 includes a base body 26, a circuit board 27, a (metal) push button switch 28, a rubber switch cap 29, a socket 30, and a connection harness 31.

The structure of the rubber switch cap 29 is shown in fig. 17.

The base body 26 is preferably square in this embodiment, but the base body 26 may be designed to be circular.

As shown in fig. 14, the base body 26 includes a base body bottom plate 32 and base body side plates 33. The circuit board 27 is mounted on the base body bottom plate 32, and the push switch 28 and the socket 30 are mounted on the circuit board 27, respectively.

One end of the connection harness 31 is connected to the socket 30, and the other end of the connection harness 31 is connected to the lower surface of the display device 4 after passing through the connection harness through hole 22 and the connection harness through hole 17 in sequence, so as to realize electrical connection between the display unit 1 and the base unit 3.

The rubber switch cap 29 is sleeved on the button switch 28 and integrally wraps the button switch 28.

The top end of the rubber switch cap 29 extends into the switch cap limiting groove 24.

The principle of implementing electrical on-off control by button control in embodiment 1 is as follows:

when the top of the switch display device is pressed downwards, the upper part of the device moves downwards, the internal mechanism transmits the pressing force to the rubber switch cap 29 and pushes the button switch 28 to move downwards, the two ends of the button switch 28 are connected together to realize electrical connection, and the metal pins of the device transmit the on-off signal to other external equipment connected with the device.

Since the rubber switch cap 29 has a certain elastic force, when no pressure is triggered, the rubber switch cap 29 bounces and is pressed against the switch cap limiting groove 24, and in order to limit the stroke of the up-and-down movement of the supporting unit 2, the following design is also performed:

a clamping block 34 is arranged at the corresponding position of the side part of the side plate 33 of the base body corresponding to each clamping buckle 25, each clamping buckle 25 and each corresponding clamping block 34 form a clamping buckle unit, and the stroke of the supporting unit in the process of moving along the up-down direction is limited.

As shown in fig. 10, the clip 25 is provided with a notch 35 into which the latch 25 is inserted, and the notch 35 is, for example, square.

The length of the bayonet 35 in the up-down direction is greater than the length of the clamping block 25 in the up-down direction to ensure that the clamping block 25 has a certain amount of movement in the up-down direction, and when the supporting unit 2 moves up and down, the clamping unit enables the stroke of the clamping block to be restricted.

In addition, the present embodiment is not limited to the above two sets of buckle units, and there may be three or more sets.

Through the design, the switch display device in the embodiment can realize the electrical on-off control function, and the electrical on-off control function in the embodiment is realized by pressing the button.

In order to improve the convenience of the assembly operation, after the display unit 1 and the supporting unit 2 are assembled together, the terminals of the connecting wire harness 31 led out from the display device 4 are firstly inserted into the socket 30 of the circuit board 27, and then the circuit board 27 is integrally assembled on the base body bottom plate 32, so that the operation difficulty can be effectively reduced, and the operation efficiency can be improved.

As shown in fig. 15, to facilitate the installation of the circuit board 27, an annular glue groove 36 is formed at the peripheral edge of the base body bottom plate 32. Glue is dispensed into the annular glue groove 36 and the circuit board 27 is placed on the base body bottom plate 32 for connection. The mode can realize the protection of the inner bottom of the switch display device, and the waterproof and dustproof effects are good.

In addition, in order to achieve a higher protection level, the base body bottom plate 32 is provided with a pin outlet hole for the socket pin and the like to penetrate out, as shown in fig. 16, the pin outlet hole is designed to be a concave structure and is filled with sealant, so that protection of the external bottom surface of the device is facilitated.

The display unit 1 in this embodiment further includes a transparent protective cover 37, as shown in fig. 1 to 5.

A transparent protective cover 37 is located over the combination lens 5 and is attached as follows: the outer periphery of the lower surface of the transparent protective cover 37 is attached to a position corresponding to the upper surface of the combined lens holding member 6 of the display device by adhesive.

The transparent protective cover 37 is an operation interface for controlling the switch display device by a user, and is required to have certain structural strength and scratch resistance, and has the property of fingerprint oil stain resistance; since the transparent protective cover 37 is also a display interface, good optical transparency is required; meanwhile, the transparent protective cover 37 also has the function of assembling and bearing the lens combination and has certain structural strength.

In consideration of the processing technology and the requirements for realizing the functions, the transparent protective cover 37 is preferably made of glass, the light transmittance of the transparent protective cover is obviously improved compared with that of the conventional ABS plastic, and the transparent protective cover is high in material strength, not easy to scratch and not easy to crack and damage corners.

The surface of the transparent protective cover 37 is plated with a film layer with special functions by a coating process, so that the transparent protective cover 37 has good optical transmittance, good structural strength, good scraping resistance and good fingerprint and oil stain resistance.

Of course, the transparent protection cover 37 may also be made of conventional ABS plastic material, and will not be described in detail herein.

In addition, in order to provide a better visual perception, a light absorbing coating (not shown) is provided on the outer periphery of the lower surface of the transparent protective cover 37 so as to be able to effectively shield the structure of the device interior that is not related to the display and stray light.

The sprayed media and color are bounded by effective masking of internal extraneous structures and stray light, with dark colors and fade resistant media being preferred.

Here, the outer periphery refers to a region where the lower surface of the transparent protection cover 37 is close to the outer edge (transparent protection cover).

Because the display device 4, the combined lens 5, the transparent protective cover 37 and the like are connected to the display device and the combined lens supporting part 6 through the gluing process in the embodiment, the sealing performance of the inner space of the display unit 1 is good, water vapor or dust can be effectively avoided from entering, the dustproof and waterproof problems of the display unit 1 are solved, and the assembly is convenient.

In addition, in order to prevent the connecting wire harness 31 from being pulled in the assembling process and ensure the reliability of the device, and meanwhile, in order to improve the protection performance of the device, the splicing position of the connecting wire harness 31 and the display device 4 adopts a gluing process and is sealed and cured by using a sealant. Meanwhile, the plugging position of the connection harness 31 and the socket 30 is sealed and cured by adopting a gluing process.

In addition, the connections of the push button switch 28 and the socket 30 on the circuit board 27 are sealed using an adhesive process.

The above gluing process is beneficial to realizing the isolation of the electrical pin and the external space, so that the waterproof and dustproof grade of the switch display device is obviously improved, and the test proves that the protection grade of the device product in the embodiment can reach IP 67.

The embodiment can well realize the full screen display function of the picture and has the electrical on-off control function. In addition, because this embodiment spare part is less, each part simple structure, it is convenient to connect, therefore has advantages such as equipment convenience.

Example 2

This embodiment 2 also describes a switch display device, and the technical features of the switch display device are different from those of the switch display device of the embodiment 1, and the switch display device of the embodiment 1 can be referred to.

As shown in fig. 18 to 21, in the present embodiment 2, compared with the above embodiment 1, the structure of the display unit 1 is slightly different, and the structures of the supporting unit 2 and the base unit 3 can be referred to the structure related to the above embodiment 1.

Compared with embodiment 1 described above, the display unit 1 in embodiment 2 is different in structure in that:

the combined lens 5 in this embodiment 2 includes a concave lens 7 and a convex lens 8, wherein the concave lens 7 is a double concave lens, and the convex lens 8 is a plano-convex lens, and wherein the upper surface of the convex lens 8 is a planar layer of the plano-convex lens.

The principle of optical magnification by the combined lens 5 in this embodiment 2 is exactly the same as that in embodiment 1 described above.

Since the upper surface of the convex lens 8 is a flat layer of a plano-convex lens, the transparent protective cover 37 is omitted in the embodiment 2, and the upper surface of the convex lens 8 is coated with a coating, so that the optical transparency, the scratch resistance, the oil stain resistance and the fingerprint resistance are good.

In comparison with embodiment 1 described above, embodiment 2 further simplifies the components of the switch display device.

Example 3

This embodiment 3 also describes a switch display device, and the technical features of the switch display device are different from those of the switch display device of embodiment 1, and the switch display device of the invention can be referred to the switch display device of embodiment 1.

As shown in fig. 22 to 25, in the present embodiment 3, compared with the above embodiment 1, the structure of the display unit 1 is slightly different, and the structures of the supporting unit 2 and the base unit 3 can be referred to the structure related to the above embodiment 1.

The display unit 1 in this embodiment 3 differs in structure from the above-described embodiment 1 in that:

the combined lens 5 in this embodiment 3 includes a concave lens 7 and a convex lens 8.

The concave lens 7 is a plano-concave lens, the convex lens 8 is a plano-convex lens, the upper surface of the convex lens 8 is a planar layer of the plano-convex lens, and the lower surface of the concave lens 7 is a planar layer of the plano-concave lens.

The principle of optical magnification of the combined lens 5 in this embodiment 3 is exactly the same as that of embodiment 1 described above.

In comparison with embodiment 1 described above, embodiment 3 further simplifies the components of the switch display device.

It should be noted that the combination of the lenses in the above three embodiments has the functions of magnifying and reducing spherical aberration and chromatic aberration, and of course, the combined lens 5 is not limited to the combination of the above two lenses, for example:

the combined lens 5 can also effectively improve the edge distortion and dispersion of the picture by increasing the number of lenses or adopting a mode of an aspheric surface design technology, thereby realizing a better display effect.

Of course, the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and it should be noted that any equivalent substitution, obvious modification made by those skilled in the art under the teaching of the present specification fall within the essential scope of the present specification, and the protection of the present invention should be protected.

Claims

1. The switch display device comprises a display unit, a supporting unit and a base unit which are sequentially arranged from top to bottom;

characterized in that the display unit comprises:

a display device, a combined lens, and a display device and combined lens supporting member;

the display device is configured for providing a display image;

the display device and combined lens support component comprises a first support portion for providing structural support to the combined lens, and a second support portion for providing structural support to the display device;

2. The switch display device according to claim 1,

the combined lens comprises a concave lens and a convex lens;

wherein the concave lens is located above the display device, and the convex lens is located above the concave lens.

3. The switch display device according to claim 2,

the combined lens also comprises an optical adhesive layer positioned between the concave lens and the convex lens;

4. The switch display device according to claim 2,

the concave lens includes a biconcave lens or a plano-concave lens, and the convex lens includes a biconvex lens or a plano-convex lens.

5. The switch display device according to claim 1,

the display unit further comprises a transparent protective cover positioned above the combined lens;

the periphery of the lower surface of the transparent protective cover is attached to the upper surface of the display device and combined lens support member.

6. The switch display device according to claim 5,

the transparent protective cover is made of glass or ABS plastic material.

7. The switch display device according to any one of claims 1 to 6,

the display device includes a liquid crystal display or L ED display.

8. The switch display device according to claim 5,

the periphery of the lower surface of the transparent protective cover is provided with a light absorption coating.

9. The switch display device according to claim 1,

the display device and combined lens support member further comprises a support member bottom plate and a support member side plate; wherein:

first supporting part adopts support bar or support groove structure, just:

the lower side of the display device is partially or completely positioned on the upper surface of the supporting bar or positioned in the supporting groove.

10. The switch display device according to claim 1,

the supporting unit comprises a supporting unit top plate and a supporting unit side plate;

a switch cap limiting groove is formed in the switch cap pressing seat;

the base body comprises a base body bottom plate and a base body side plate;

the circuit board is arranged on the base body bottom plate; the button switch and the socket are respectively arranged on the circuit board;

at least two groups of buckle units are arranged between the supporting unit side plate and the base body side plate;