Press sensing Mini-LED indicating device

Abstract

The embodiment of the utility model provides a pressing induction Mini-LED indicating device which is provided with a cover plate, a channel cavity plate, a spring part and a circuit board, the channel cavity plate is provided with a channel cavity and a partition wall, a silk-screen layer is arranged at the top of the cover plate, an indicating pattern is printed on the silk-screen layer in a silk-screen mode, the spring part is arranged in the channel cavity, and the circuit board is arranged in the channel cavity. The top surface of the circuit board is provided with a Mini-LED chip and a pressure sensing element, the Mini-LED chip and the pressure sensing element are both embedded into the interior of the channel cavity, the top of the spring part is connected with the cover plate, the bottom of the spring part is connected with the pressure sensing element, the spring part is a hollow spring, and by means of the hollow characteristic of the spring part, the pressure sensing element is arranged on the top surface of the circuit board. Light emitted by the Mini-LED chip can penetrate through the channel cavity to be emitted out of the cover plate so as to illuminate the indication pattern of the silk-screen layer.

Description

Technical Field

[0001] The present disclosure relates to the field of LED technology, and in particular to a pressure-sensitive Mini-LED indicator device. Background Art

[0002] LED-based digital tube indicator devices and LED backlight-based touch devices have been widely used in home appliances, switch panels, instruments, meters, and other fields. With the continuous expansion of application areas and the increase in the number of aging people, devices that integrate sensible press and pattern indication have gradually become an important demand in the sub-sectors. Traditional touch devices based on LED backlighting mostly use capacitive sensing or small strain pressure sensing, which cannot provide the tactile feeling of the reaction force of pressing. Therefore, it is necessary to develop a press indicator device with a tactile reaction force. Utility Model Content

[0003] In view of this, the present invention provides a pressure-sensitive Mini-LED indicator device, which at least partially solves the problems existing in the prior art.

[0004] A pressure-sensitive Mini-LED indicator device is provided with a cover plate, a channel cavity plate, a spring portion, and a circuit board. The channel cavity plate is provided with a channel cavity and a partition wall. The circuit board is arranged at the bottom of the channel cavity plate, and the cover plate is arranged at the top of the channel cavity plate. The top of the cover plate is provided with a silk-screen layer, and an indication pattern is printed on the silk-screen layer. The spring portion is arranged in the channel cavity. The top surface of the circuit board is provided with a Mini-LED chip and a pressure sensing element. The Mini-LED chip and the pressure sensing element are both embedded in the channel cavity. The top of the spring portion is connected to the cover plate, and the bottom of the spring portion is connected to the pressure sensing element. The spring portion is a hollow spring. With the help of the hollow characteristics of the spring portion, the light emitted by the Mini-LED chip can pass through the channel cavity and exit from the cover plate, thereby illuminating the indication pattern of the silk-screen layer.

[0005] The sum of the width of the Mini-LED chip and the width of the pressure sensing element is smaller than the width of the channel cavity.

[0006] The bottom of the cover plate is provided with an adhesive layer, the adhesive layer is hollowed out at a position corresponding to the channel cavity, and the adhesive layer is bonded to the top of the partition wall.

[0007] A spring fixing block is provided at the bottom of the cover plate. The spring fixing block is made of a transparent material. The position of the spring fixing block corresponds to the position of the channel cavity.

[0008] The cover plate is elastic and can be elastically deformed when pressed by a finger.

[0009] The circuit board is provided with a circuit, and the pressure sensing element acts as a switch in the circuit to control the lighting and shutting down of the Mini-LED chip.

[0010] The width of the circuit board is smaller than the width of the channel cavity board.

[0011] The Mini-LED chip and pressure sensing element are both soldered on the circuit board.

[0012] The diameter of the spring portion is smaller than the width of the channel cavity.

[0013] Further preferably, a fluorescence conversion material is provided in the spring fixing block.

[0014] Beneficial effects of the technical solution:

[0015] (1) Taking advantage of the small size of the Mini-LED chip, which is less than 200 microns in width, the Mini-LED chip and the pressure sensing element are embedded in the channel cavity. The pressure sensing element acts as a switch in the circuit to control the lighting and shutting down of the Mini-LED chip. With the hollowing characteristics of the spring part, the light emitted by the Mini-LED chip can pass through the channel cavity and exit from the cover plate to illuminate the indication pattern of the silk screen layer, thereby achieving integration;

[0016] (2) The cover is elastic and can be elastically deformed when pressed by a finger, and the elasticity of the spring portion can provide a reaction force tactile sensation;

[0017] (3) A silk-screen layer is provided on the top of the cover plate, and an indication pattern is printed on the silk-screen layer. When the internal structure remains unchanged, the indication pattern can be changed by replacing the silk-screen layer, which is conducive to serialized and large-scale manufacturing and helps reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a structural diagram of the pressure-sensitive Mini-LED indicator device of Example 1;

[0020] Figure 2 This is a schematic diagram of the light path in the through hole of the pressure-sensitive Mini-LED indicator device of Example 1;

[0021] Figure 3 Schematic diagram of the structure of the pressure-sensitive Mini-LED indicator device of Example 2. DETAILED DESCRIPTION

[0022] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0023] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0024] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0025] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The illustrations only show components related to the present disclosure and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0026] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details. Example 1

[0027] See also Figures 1 to 2, a press-sensitive Mini-LED indicator device, comprising a cover plate 1, a channel cavity plate 2, a spring portion 3, and a circuit board 4, wherein the channel cavity plate 2 is provided with a channel cavity 21 and a partition wall 22, the circuit board 4 is arranged at the bottom of the channel cavity plate 2, the cover plate 1 is arranged at the top of the channel cavity plate 2, the top of the cover plate 1 is provided with a silk-screen layer 11, and an indication pattern is printed on the silk-screen layer 11, the spring portion 3 is arranged in the channel cavity 21, and a Mini-LED chip 5 and a pressure sensing element 6 are provided on the top surface of the circuit board 4, the Mini-LED chip 5 and the pressure sensing element 6 are both embedded in the channel cavity 21, the top of the spring portion 3 is connected to the cover plate 1, and the bottom of the spring portion 3 is connected to the pressure sensing element 6, the spring portion 3 is a hollow spring, with the help of the hollow characteristics of the spring portion, the light emitted by the Mini-LED chip 5 can pass through the channel cavity 21 and emit from the cover plate 1, thereby illuminating the indication pattern of the silk-screen layer 11.

[0028] The sum of the width of the Mini-LED chip 5 and the width of the pressure sensing element 6 is smaller than the width of the channel cavity 21 .

[0029] An adhesive layer 12 is provided at the bottom of the cover plate 1 . The adhesive layer 12 is hollowed out at a position corresponding to the channel cavity 21 . The adhesive layer 12 is bonded to the top of the partition wall 22 .

[0030] A spring fixing block 13 is provided at the bottom of the cover plate 1 . The spring fixing block 13 is made of a transparent material. The position of the spring fixing block 13 corresponds to the position of the channel cavity 21 .

[0031] The cover plate 1 is elastic and can be elastically deformed when pressed by a finger.

[0032] The circuit board 4 is provided with a circuit, and the pressure sensing element 6 acts as a switch in the circuit to control the lighting and shutting down of the Mini-LED chip 5.

[0033] The width of the circuit board 4 is smaller than the width of the channel cavity plate 2 .

[0034] The Mini-LED chip 5 and the pressure sensing element 6 are both soldered on the circuit board 4 .

[0035] The diameter of the spring portion 3 is smaller than the width of the channel cavity 21 . Example 2

[0036] like Figure 3 As shown, a fluorescent conversion material is disposed in the spring fixing block, which converts the light emitted by the Mini-LED chip into light of another wavelength.

[0037] The rest is the same as that of the first embodiment.

[0038] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A pressure-sensitive Mini-LED indicator device, comprising a cover plate, a channel cavity plate, a spring portion, and a circuit board, wherein the channel cavity plate is provided with a channel cavity and a partition wall, the circuit board is disposed at the bottom of the channel cavity plate, the cover plate is disposed at the top of the channel cavity plate, a silk-screen layer is disposed on the top of the cover plate, and an indicator pattern is printed on the silk-screen layer, characterized in that: The spring part is arranged in the channel cavity, and a Mini-LED chip and a pressure sensing element are arranged on the top surface of the circuit board. The Mini-LED chip and the pressure sensing element are both embedded in the channel cavity. The top of the spring part is connected to the cover plate, and the bottom of the spring part is connected to the pressure sensing element. The spring part is a hollow spring. With the help of the hollow characteristics of the spring part, the light emitted by the Mini-LED chip can pass through the channel cavity and exit from the cover plate, thereby illuminating the indication pattern of the silk-screen layer.

2. The pressure-sensitive Mini-LED indicator device according to claim 1, characterized in that: The sum of the width of the Mini-LED chip and the width of the pressure sensing element is smaller than the width of the channel cavity.

3. The pressure-sensitive Mini-LED indicator device according to claim 1, wherein: The bottom of the cover plate is provided with an adhesive layer, the adhesive layer is hollowed out at a position corresponding to the channel cavity, and the adhesive layer is bonded to the top of the partition wall.

4. The pressure-sensitive Mini-LED indicator device according to claim 1, wherein: A spring fixing block is provided at the bottom of the cover plate. The spring fixing block is made of a transparent material. The position of the spring fixing block corresponds to the position of the channel cavity.

5. The pressure-sensitive Mini-LED indicator device according to claim 1, wherein: The cover plate is elastic and can be elastically deformed when pressed by a finger.

6. The pressure-sensitive Mini-LED indicator device according to claim 1, wherein: The circuit board is provided with a circuit, and the pressure sensing element acts as a switch in the circuit to control the lighting and shutting down of the Mini-LED chip.

7. The pressure-sensitive Mini-LED indicator device according to claim 1, wherein: The width of the circuit board is smaller than the width of the channel cavity board.

8. The pressure-sensitive Mini-LED indicator device according to claim 1, wherein: The Mini-LED chip and pressure sensing element are both soldered on the circuit board.

9. The pressure-sensitive Mini-LED indicator device according to claim 1, wherein: The diameter of the spring portion is smaller than the width of the channel cavity.

10. The pressure-sensitive Mini-LED indicator device according to claim 4, wherein: Fluorescence conversion material is arranged in the spring fixing block.

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