Key light-emitting structure

Abstract

A key light-emitting structure comprises a pressing assembly and a backlight module. The pressing assembly comprises a bottom plate, at least one key cap arranged on the bottom plate, and an elastic body propped between the bottom plate and the key cap; the backlight module is arranged below the pressing assembly and comprises a circuit layer and a light guide layer which are overlapped with each other, the circuit layer is provided with a light-emitting element which is electrically connected with the circuit layer, and the light guide layer is provided with a bare area for the light-emitting element to be positioned in the bare area; wherein the key cap is provided with at least two side edges, a corner is arranged between any two adjacent side edges, the light-emitting element is provided with at least two light-emitting side edges, and each light-emitting side edge respectively carries out light source projection towards the corner in the projection direction.

Description

Technical Field

[0001] The utility model relates to a keyboard, in particular to a key luminous structure applied to a keyboard. Background Art

[0002] The existing luminous keyboard mainly arranges a luminous backlight module under the keys, and through the light source generated by the backlight module, the symbols arranged on the key caps can be displayed through the light source.

[0003] However, in the existing luminous keyboard, the light sources corresponding to the keycaps are mainly designed to make the luminous side edges of the luminous elements correspond to the side edges of the keycaps, and the symbols on the keycaps are often arranged at the four corners of the keycaps, so that the symbols cannot effectively obtain the best brightness.

[0004] In view of this, the inventors have devoted themselves to research and applied theories to improve and solve the above-mentioned deficiencies, and finally proposed a technical solution that is reasonably designed and effectively improves the above-mentioned deficiencies. Utility Model Content

[0005] The main purpose of the utility model is to provide a key lighting structure, which can effectively utilize light sources to project onto the corners of keycaps, so that symbols located on the corners of keycaps can obtain the maximum light source projection, thereby improving the brightness of the presentation.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a key light-emitting structure, including a pressing component and a backlight module; the pressing component includes a base plate, at least one keycap arranged on the base plate, and an elastic body pressed against the base plate and the keycap; the backlight module is arranged below the pressing component, and includes a circuit layer and a light-guiding layer stacked on each other, and the circuit layer has a light-emitting element arranged on the circuit layer by electrical connection, and the light-guiding layer has a bare area for the light-emitting element to be located in the bare area; wherein the light-emitting element projects a light source toward each corner of the keycap in the projection direction.

[0007] Preferably, a scissor structure is provided between the base plate and the key cap.

[0008] Preferably, the keycap has at least two side edges, and there is a corner between any two adjacent side edges, and the light-emitting element has at least two light-emitting side edges, and each of the light-emitting side edges projects a light source toward the corner in a projection direction.

[0009] Preferably, the keycap is provided with symbols corresponding to the corners of the keycap.

[0010] Preferably, the circuit layer is stacked between the base plate and the light guide layer.

[0011] Preferably, the light emitting element faces away from the base plate.

[0012] Preferably, the light guide layer is stacked between the base plate and the circuit layer.

[0013] Preferably, the light emitting element faces the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other purposes, features and advantages of the present invention will become more apparent through the detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not deliberately scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.

[0015] Figure 1 It is a cross-sectional schematic diagram of the first embodiment of the utility model.

[0016] Figure 2 It is a cross-sectional schematic diagram of the second embodiment of the utility model.

[0017] Figure 3 It is a top view schematic diagram of the utility model.

[0018] Figure 4 This is a schematic diagram of the utility model in use.

[0019] Reference numerals:

[0020] 1: Press the component

[0021] 10: Base plate

[0022] 11: Keycaps

[0023] 110: Side

[0024] 111: Symbols

[0025] 12: Elastomer

[0026] 120: Scissors structure

[0027] 2: Backlight module

[0028] 20: Circuit layer

[0029] 200: Light emitting element

[0030] 201: Luminous side edge

[0031] 21: Light guide layer

[0032] 210: Naked Area

[0033] α: Corner DETAILED DESCRIPTION

[0034] In this specification, many specific details are provided to provide a thorough understanding of the specific embodiments of the utility model; however, those skilled in the art should know that the purpose of the utility model can still be achieved without one or more of these specific details; in other cases, well-known details are not shown or described to avoid blurring the main technical features of the utility model. The detailed description and technical content of the utility model are described as follows with the accompanying drawings, but the attached drawings are only provided for reference and explanation, and are not used to limit the utility model.

[0035] See also Figure 1 The figure is a cross-sectional schematic diagram of the first embodiment of the utility model. The utility model provides a key light-emitting structure, comprising a pressing component 1 and a backlight module 2 arranged below the pressing component 1; wherein:

[0036] The pressing assembly 1 includes a base plate 10, at least one keycap 11 disposed on the base plate 10, and an elastic body 12 abutting between the base plate 10 and the keycap 11, so that after the keycap 11 is pressed and released, the keycap 11 can be restored to its original state through the elastic body 12. In addition, a scissor structure 120 can be further disposed between the base plate 10 and the keycap 11 to stably ensure that the keycap 11 has a consistent stroke when pressed and rebounds and does not shake.

[0037] The backlight module 2 is disposed below the bottom plate 10 of the pressing assembly 1, and includes a circuit layer 20 and a light guide layer 21 stacked on each other; wherein the circuit layer 20 has a light emitting element 200 disposed thereon in electrical connection, and the light guide layer 21 has a bare area 210 for the light emitting element 200 to be located in the bare area 210. Further, as Figure 1 As shown, in the first embodiment of the present invention, the circuit layer 20 is stacked between the base plate 10 and the light guide layer 21, and the light emitting element 200 faces away from the base plate 10 and is located in the bare area 210. Figure 2 As shown, in the second embodiment of the present invention, the light guide layer 21 can also be stacked between the base plate 10 and the circuit layer 20 , and the light emitting element 200 can face the base plate 10 to be located in the bare area 210 .

[0038] like Figure 3 As shown in FIG. 1 , the present invention is mainly to make the light emitting element 200 project light toward the four corners of the key cap 11. Specifically, the key cap 11 has at least two side edges 110, and there is a corner α between any two adjacent side edges 110, and the light emitting element 200 has at least two light emitting side edges 201, each light emitting side edge 201 in the projection direction (i.e., Figure 3As shown), the light source is projected toward the corner α. Figure 4 As shown, since the light emitting element 200 can project light through its light emitting side edge 201 corresponding to each corner α of the keycap 11, the symbol 111 located at each corner α of the keycap 11 can obtain more light and present its brightness to effectively provide a lighting effect.

[0039] Therefore, due to the above-mentioned structural composition, the key light-emitting structure of the utility model can be obtained.

[0040] However, the above is only a preferred embodiment of the utility model, and it cannot limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the claims of the utility model should still fall within the scope of the patent coverage of the utility model and are intended to be protected. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The utility model can also have many other embodiments. Without departing from the spirit and essence of the utility model, technicians familiar with the field can make various corresponding changes and deformations according to the utility model, but these corresponding changes and deformations should fall within the scope of protection of the claims of the utility model.

Claims

1. A key light emitting structure, characterized in that: include: A pressing assembly comprises a base plate, at least one key cap disposed on the base plate, and an elastic body pressed between the base plate and the key cap; as well as A backlight module is disposed below the pressing component and includes a circuit layer and a light guide layer stacked on each other, wherein the circuit layer has a light emitting element disposed on the circuit layer in an electrically connected manner, and the light guide layer has a bare area for the light emitting element to be located in the bare area; The keycap has at least two sides, and there is a corner between any two adjacent sides, and the light-emitting element has at least two light-emitting side edges, and each of the light-emitting side edges projects a light source toward the corner of the keycap in a projection direction.

2. The key light emitting structure according to claim 1, characterized in that: A scissor structure is provided between the bottom plate and the key cap.

3. The key light emitting structure according to claim 1, characterized in that: The key cap is provided with symbols corresponding to the corners of the key cap.

4. The key light emitting structure according to claim 1, characterized in that: The circuit layer is stacked between the bottom plate and the light guide layer.

5. The key light emitting structure according to claim 4, characterized in that: The light emitting element faces away from the bottom plate.

6. The key light emitting structure according to claim 1, characterized in that: The light guide layer is stacked between the bottom plate and the circuit layer.

7. The key light emitting structure according to claim 6, characterized in that: The light emitting element faces the bottom plate.

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