CN110875154B - Keyboard with a keyboard body - Google Patents
Keyboard with a keyboard body Download PDFInfo
- Publication number
- CN110875154B CN110875154B CN201811002025.XA CN201811002025A CN110875154B CN 110875154 B CN110875154 B CN 110875154B CN 201811002025 A CN201811002025 A CN 201811002025A CN 110875154 B CN110875154 B CN 110875154B
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- Prior art keywords
- bottom plate
- light
- circuit board
- film circuit
- holes
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- 239000010409 thin film Substances 0.000 claims abstract description 48
- 239000010408 film Substances 0.000 claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
- H01H13/85—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/002—Longer travel
Landscapes
- Push-Button Switches (AREA)
Abstract
A keyboard comprises a bottom plate, a film circuit board, a backlight module and a plurality of key assemblies. The bottom plate has a plurality of perforations. The film circuit board is arranged on the bottom plate. The backlight module is arranged on one side of the bottom plate far away from the thin film circuit board and is configured to emit light towards the bottom plate. The key assembly is arranged on the film circuit board. Each key assembly comprises a reset piece positioned above one of the through holes. The orthographic projection of the resetting piece projected on the bottom plate is overlapped with a part of the through holes.
Description
Technical Field
The invention relates to a keyboard.
Background
In terms of the current usage habit of personal computers, a key device is one of the indispensable input devices for inputting characters or numbers. Moreover, for consumer-grade electronic products in contact with daily life or large processing equipment used in the industry, a key structure is required to be provided as an input device for operating the electronic products and the processing equipment.
In order to facilitate the use of the keyboard in a dark place, Light-Emitting Diode (LED) Light-Emitting keyboards have been developed on the market, so that users can use the keyboards in a dark place, thereby increasing the diversity of the keyboards. It is known to dispose a light emitting diode under each key (or a desired key) of the keyboard. Currently, a light emitting keyboard is manufactured by directly disposing light emitting diodes on a thin film circuit board and emitting light toward key caps of keys. However, this method easily causes uneven light emission on the key cap, so that the light-emitting area of the key cap is limited to a small area, and thus the visual perception of the user is also affected.
Moreover, the current computer products are developed toward being light, thin, short and small, and the keyboard is no exception. Under the trend, after the thickness of the prior luminous keyboard is reduced, the stroke of the key cap is probably too small, so that the hand feeling of the key is deteriorated.
Therefore, how to provide a keyboard capable of solving the above problems is one of the problems that the industry needs to invest in research and development resources to solve.
Disclosure of Invention
In view of the above, an objective of the present invention is to provide a keyboard that can effectively solve the aforementioned problems.
In order to achieve the above objects, according to one embodiment of the present invention, a keyboard includes a base plate, a thin film circuit board, a backlight module, and a plurality of key assemblies. The bottom plate has a plurality of perforations. The film circuit board is arranged on the bottom plate. The backlight module is arranged on one side of the bottom plate far away from the thin film circuit board and is configured to emit light towards the bottom plate. The key assembly is arranged on the film circuit board. Each key assembly includes a reset element located over one of the through holes. The orthographic projection of the resetting piece projected on the bottom plate is overlapped with a part of the through holes.
In one or more embodiments of the present invention, the orthographic projection of the restoring member onto the bottom plate is located entirely within the inner edge of the aforementioned one of the through holes.
In one or more embodiments of the present invention, the key device further includes a light shielding layer. The shading layer is arranged between the thin film circuit board and the resetting piece, and the orthographic projection of the shading layer projected on the thin film circuit board covers the orthographic projection of the resetting piece projected on the thin film circuit board.
In one or more embodiments of the present invention, the key device further includes a light shielding layer. The shading layer is positioned between the backlight module and the resetting piece, and the orthographic projection of the shading layer projected on the thin film circuit board covers the orthographic projection of the resetting piece projected on the thin film circuit board.
In one or more embodiments of the present invention, the light shielding layer is disposed on a side of the thin film circuit board facing the bottom plate.
In one or more embodiments of the present invention, the light shielding layer is disposed on the backlight module.
In one or more embodiments of the present invention, the backlight module includes a reflector, a light shielding sheet and a light guide plate. The shading sheet is positioned on one side of the reflector sheet close to the bottom plate. The shading layer is arranged on one side of the shading sheet close to the bottom plate. The light guide plate is clamped between the reflecting sheet and the shading sheet.
In one or more embodiments of the present invention, the backlight module includes a reflector, a light shielding sheet and a light guide plate. The shading sheet is positioned on one side of the reflector sheet close to the bottom plate. The light guide plate is clamped between the reflecting sheet and the shading sheet. The shading layer is arranged between the shading sheet and the light guide plate.
In one or more embodiments of the present invention, the orthographic projection of the light shielding layer on the bottom plate covers the through hole.
In one or more embodiments of the present invention, the outer edge of the light shielding layer is completely joined to the inner edge of the aforementioned one of the through holes.
In order to achieve the above objects, according to another embodiment of the present invention, a key device includes a base plate, a thin film circuit board, a backlight module, a plurality of key assemblies, and a light shielding layer. The bottom plate has a plurality of perforations. The film circuit board is arranged on the bottom plate. The backlight module is arranged on one side of the bottom plate far away from the thin film circuit board and is configured to emit light towards the bottom plate. The key assembly is arranged on the film circuit board. Each key assembly includes a reset element located over one of the through holes. The shading layer is arranged between the backlight module and the resetting piece, and the orthographic projection of the shading layer projected on the thin film circuit board covers the orthographic projection of the resetting piece projected on the thin film circuit board.
In summary, in the key device of the invention, since the range of the through hole of the bottom plate is larger than the orthographic projection of the reset piece projected on the bottom plate, when the thin film circuit board is pressed downwards by the reset piece, the through hole of the bottom plate can increase the stroke of the keycap, thereby improving the hand feeling of key striking. In addition, because the orthographic projection of the light shielding layer arranged between the backlight module and the reset piece, which is projected on the bottom plate, covers the through hole, or the outer edge of the light shielding layer is completely jointed with the inner edge of the through hole, the light rays of the backlight module, which are injected into the through hole, can be shielded by the light shielding layer and cannot reach the key assembly through the reset piece, and the light emitting area of the key assembly can be prevented from being limited to a small area in the center.
The foregoing is merely illustrative of the problems, solutions to problems, and other aspects of the present invention, and the specific details thereof are set forth in the following description and the related drawings.
Drawings
In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the following description is given:
fig. 1 is a perspective view illustrating a keyboard according to an embodiment of the present invention.
Fig. 2A is a perspective assembly view of a key device according to an embodiment of the invention.
Fig. 2B is an exploded perspective view of the key device shown in fig. 2A.
Fig. 3 is a schematic cross-sectional view illustrating a key device according to an embodiment of the invention, wherein the connection guide structure is omitted.
Fig. 4 is a top view illustrating a base plate according to an embodiment of the present invention.
Fig. 5 is a top view illustrating a chassis according to another embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view illustrating a key device according to another embodiment of the invention, wherein the connection guide structure is omitted.
FIG. 7 is a partial cross-sectional view of the light-shielding layer and the backlight module shown in FIG. 6.
FIG. 8 is a partial cross-sectional view of a light-shielding layer and a backlight module according to another embodiment of the invention.
Fig. 9 is a schematic cross-sectional view illustrating a key device according to another embodiment of the invention, wherein the connection guide structure is omitted.
Wherein the reference numerals are:
100: keyboard with a keyboard body
100A, 200A, 300A: key device
110: base plate
111: clamping hook
112: perforation
113: light penetration part
120: thin film circuit board
130. 130': backlight module
131: reflector plate
132: anti-dazzling screen
133: light guide plate
140: key assembly
141: connection guide structure
142: key cap
143: reset piece
150: light shielding layer
P1, P2, P2': orthographic projection
Detailed Description
Embodiments of the present invention are illustrated in the drawings and, for purposes of clarity, numerous implementation details are set forth in the following description. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, for simplicity and clarity of illustration, certain conventional structures and components are shown in simplified schematic form in the drawings, and like reference numerals are used to designate like components in the various embodiments. The drawings are for clarity of understanding, and do not show actual dimensions of the components.
Please refer to fig. 1 to fig. 2B. Fig. 1 is a perspective view illustrating a keyboard 100 according to an embodiment of the invention. Fig. 2A is a perspective assembly view of a key device 100A according to an embodiment of the invention. Fig. 2B is an exploded perspective view of the key device 100A in fig. 2A. As shown in fig. 1, fig. 2A and fig. 2B, the keyboard 100 of the present embodiment may be an external keyboard (for example, a PS2 interface keyboard or a USB interface keyboard) for a desktop computer or an input device including keys, but is not limited thereto. In other words, the concept of the keyboard 100 of the present invention can be applied to any electronic product using pressing as an input method.
As shown in fig. 1 to 2B, in some embodiments, the keyboard 100 includes a base plate 110, a film circuit board 120 and a plurality of key assemblies 140, wherein the base plate 110, the film circuit board 120 and the single key assembly 140 can be regarded as at least a portion of a single key device 100A. The thin film circuit board 120 is disposed on the base plate 110. The key assembly 140 is disposed on the film circuit board 120.
Specifically, the bottom plate 110 extends with a hook 111. The thin film circuit board 120 correspondingly has a through hole (not labeled) for the hook 111 of the base board 110 to pass through. The key assembly 140 includes a connection guiding structure 141, a key cap 142 and a reset element 143. In the embodiment shown in fig. 2B, the connection guiding structure 141 is connected between the key cap 142 and the hook 111 of the bottom plate 110 and is pivotally connected by two links, so as to drive the key cap 142 to move up and down relative to the bottom plate 110. The reset element 143 is disposed above the thin film circuit board 120 and located between the key cap 142 and the thin film circuit board 120. When the key cap 142 is pressed down by external force, the reset element 143 generates a resistance force to the key cap 142, thereby providing a feeling of pressing by a user, and after the external force applied to the key cap 142 is released, the reset element 143 can provide a restoring force for restoring the pressed key cap 142 to an original non-pressed position.
In the embodiment shown in fig. 2B, the restoring member 143 is an elastomer, and the material thereof includes rubber, for example, but the invention is not limited thereto. In practical applications, the connecting and guiding structure 141 can be replaced by other supporting structures with similar functions (i.e. driving the key cap 142 to lift relative to the base plate 110), such as a V-shaped, a-shaped or two parallel link structures. The reset element 143 may be replaced with other elements having similar functions, such as a magnetic element.
In some embodiments, the base plate 110 may be made of a hard material (e.g., metal or plastic), but the invention is not limited thereto. In some embodiments, the thin film circuit board 120 is composed of a light-permeable stacked layer, but the invention is not limited thereto.
Please refer to fig. 3 and fig. 4. Fig. 3 is a schematic cross-sectional view illustrating a key device 100A according to an embodiment of the invention, wherein the connection guiding structure 141 is omitted. Fig. 4 is a top view illustrating the base plate 110 according to an embodiment of the present invention.
As shown in fig. 2B, 3 and 4, in some embodiments, the bottom plate 110 has a plurality of through holes 112 in the center. The restoring member 143 is positioned above the through hole 112. The base plate 110 also has a plurality of light penetration portions 113 surrounding the through-holes 112. Some of the light transmitting portions 113 are adjacent to the hooks 111. In particular, an orthographic projection P1 (see fig. 4) of the restoring member 143 projected on the base plate 110 overlaps a portion of the perforation 112. And, the orthographic projection P1 of the restoring member 143 projected on the base plate 110 is located entirely within the inner edge of the through hole 112. That is, the through hole 112 of the base plate 110 has an annular region protruding outward and not overlapping with respect to the orthographic projection P1 of the restoring member 143 projected on the base plate 110. The keyboard 100 further includes a backlight module 130, wherein the backlight module 130 can also be regarded as a part of the key device 100A. The backlight module 130 is disposed on a side of the bottom plate 110 away from the thin film circuit board 120, and is configured to emit light toward the bottom plate 110.
With the above-mentioned structure configuration, the light emitted from the backlight module 130 toward the bottom plate 110 can at least reach the key assembly 140 (e.g., the key cap 142) above by the light penetrating portion 113 of the bottom plate 110 passing through the film circuit board 120. Furthermore, since the range of the through hole 112 of the base plate 110 is larger than the orthographic projection P1 of the reset member 143, when the film circuit board 120 is pressed downward by the reset member 143, the through hole 112 of the base plate 110 increases the stroke of the key cap 142, thereby making the feeling of key stroke better.
In the embodiment shown in fig. 4, the orthographic projection P1 of the restoring element 143 projected on the bottom plate 110 and the through hole 112 of the bottom plate 110 are both circular, but the invention is not limited thereto. In practical applications, at least one of the orthographic projection P1 of the restoring element 143 projected on the bottom plate 110 and the through hole 112 of the bottom plate 110 may be irregular.
As shown in fig. 2B, fig. 3 and fig. 4, in some embodiments, the key device 100A further includes a light shielding layer 150. The light shielding layer 150 is disposed between the thin film circuit board 120 and the reset element 143. The orthogonal projection P2 of the light shielding layer 150 projected on the bottom plate 110 covers the through hole 112. Moreover, since the orthographic projection P2 covers the orthographic projection P1, it can be clearly seen that the orthographic projection of the light shielding layer 150 on the thin film circuit board 120 covers the orthographic projection of the resetting member 143 on the thin film circuit board 120.
With the above-mentioned structure configuration, the light emitted into the through hole 112 by the backlight module 130 can be shielded by the light shielding layer 150 and will not reach the key assembly 140 through the reset member 143, so as to prevent the light emitting area of the key assembly 140 from being limited to a small area in the center thereof.
In some embodiments, the orthographic projection P2 of the light shielding layer 150 projected on the bottom plate 110 may also completely coincide with the through hole 112.
In the embodiment shown in fig. 4, the orthographic projection P2 of the light shielding layer 150 on the bottom plate 110 is a circle, but the invention is not limited thereto. Referring to fig. 5, a top view of a bottom plate 110 according to another embodiment of the invention is shown. Compared to the embodiment shown in fig. 4, the orthographic projection P2 'of the light shielding layer 150 projected on the bottom plate 110 shown in fig. 5 is irregular, but as long as the orthographic projection P2' of the light shielding layer 150 projected on the bottom plate 110 covers the through hole 112 of the bottom plate 110, and the orthographic projection of the light shielding layer 150 projected on the thin film circuit board 120 covers the orthographic projection of the reset element 143 projected on the thin film circuit board 120, the light emitted into the through hole 112 by the backlight module 130 can be shielded by the light shielding layer 150 and will not reach the upper key assembly 140 through the reset element 143. In addition, the orthographic projection P2' of the light shielding layer 150 projected on the bottom plate 110 can partially overlap the light transmitting portion 113 to modify the light shape of the light emitted from the backlight module 130 reaching the key assembly 140 through the bottom plate 110 and the thin film circuit board 120.
In some embodiments, the light-shielding layer 150 is a black ink layer and can be formed on the thin film circuit board 120 by a printing process, but the invention is not limited thereto.
Please refer to fig. 6 and fig. 7. Fig. 6 is a schematic cross-sectional view illustrating a key device 200A according to another embodiment of the invention, wherein the connection guide structure 141 is omitted. Fig. 7 is a partial cross-sectional view of the light-shielding layer 150 and the backlight module 130 shown in fig. 6. At least one difference of this embodiment from the embodiment shown in fig. 3 is that the light-shielding layer 150 is disposed on the backlight module 130. Specifically, as shown in fig. 7, the backlight module 130 includes a reflective sheet 131, a light shielding sheet 132 and a light guide plate 133. The light shielding sheet 132 is positioned on a side of the reflective sheet 131 close to the bottom plate 110. The light-shielding layer 150 is disposed on a side of the light-shielding sheet 132 close to the bottom plate 110. The light guide plate 133 is interposed between the reflective sheet 131 and the light shielding sheet 132. Specifically, the outer edge of the light-shielding layer 150 is completely engaged with the inner edge of the through-hole 112.
With the above-mentioned structure configuration, the light in the backlight module 130 can be reflected between the light shielding sheet 132 and the light guide plate 133 to increase the uniformity of the light. Since the light shielding layer 150 completely shields the path of the light entering the through hole 112 of the bottom plate 110, the light emitted from the backlight module 130 can be prevented from reaching the key assembly 140 above through the reset element 143.
Fig. 8 is a partial cross-sectional view of a light-shielding layer 150 and a backlight module 130' according to another embodiment of the invention. At least one difference of this embodiment from the embodiment shown in fig. 7 is that the light-shielding layer 150 in this embodiment is disposed between the light-shielding sheet 132 and the light guide plate 133. Specifically, the orthogonal projection of the light shielding layer 150 on the bottom plate 110 covers the through hole 112 (see fig. 3).
With the above-mentioned structure configuration, the light in the backlight module 130' can be reflected between the light shielding layer 150 and the reflective sheet 131 to increase the uniformity of the light. Since the light shielding layer 150 completely shields the path of the light entering the through hole 112 of the bottom plate 110, the light emitted by the backlight module 130' can be prevented from reaching the upper key assembly 140 through the reset member 143.
Fig. 9 is a schematic cross-sectional view illustrating a key device 300A according to another embodiment of the invention, wherein the connection guiding structure 141 is omitted. At least one difference of this embodiment compared to the embodiment shown in fig. 3 is that the light shielding layer 150 is disposed between the thin film circuit board 120 and the bottom plate 110. That is, the light shielding layer 150 is disposed on a side of the thin film circuit board 120 facing the bottom plate 110. Specifically, the outer edge of the light-shielding layer 150 is completely engaged with the inner edge of the through-hole 112.
With the above-mentioned structure configuration, the purpose of preventing the light emitted from the backlight module 130 from reaching the upper key assembly 140 through the reset element 143 can also be achieved.
As is apparent from the above detailed description of the embodiments of the present invention, in the key device of the present invention, since the range of the through holes of the bottom plate is larger than the orthographic projection of the reset piece projected on the bottom plate, when the thin film circuit board is pressed downward by the reset piece, the through holes of the bottom plate can increase the stroke of the key cap, thereby improving the hand feeling of key striking. In addition, because the orthographic projection of the light shielding layer arranged between the backlight module and the reset piece, which is projected on the bottom plate, covers the through hole, or the outer edge of the light shielding layer is completely jointed with the inner edge of the through hole, the light rays of the backlight module, which are injected into the through hole, can be shielded by the light shielding layer and cannot reach the key assembly through the reset piece, and the light emitting area of the key assembly can be prevented from being limited to a small area in the center.
While the present invention has been described with reference to the embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (20)
1. A keyboard, comprising:
a bottom plate having a plurality of through holes;
a film circuit board arranged on the bottom plate;
the backlight module is arranged on one side of the bottom plate, which is far away from the thin film circuit board, and is configured to emit light towards the bottom plate;
a plurality of key assemblies disposed on the thin film circuit board, each of the key assemblies including a reset element disposed above one of the through holes, wherein an orthographic projection of the reset element projected on the bottom plate overlaps a portion of the one of the through holes; and
a light shielding layer located between the backlight module and the reset member, the light shielding layer being used to prevent light from reaching the reset member through one of the through holes;
the other through holes except the one of the through holes surround the one of the through holes and form a plurality of light penetrating parts, and light rays emitted by the backlight module towards the bottom plate can at least penetrate through the film circuit board from the light penetrating parts of the bottom plate to reach the key assembly above.
2. The keyboard as claimed in claim 1, wherein the orthographic projection of the reset member projected on the bottom plate is located entirely within an inner edge of the one of the through holes.
3. The keyboard of claim 1, wherein the light shielding layer is disposed between the thin film circuit board and the reset element, and an orthographic projection of the light shielding layer projected onto the thin film circuit board covers an orthographic projection of the reset element projected onto the thin film circuit board.
4. The keyboard as claimed in claim 1, wherein an orthographic projection of the light shielding layer projected on the thin film circuit board covers an orthographic projection of the reset member projected on the thin film circuit board.
5. The keyboard as claimed in claim 4, wherein the light shielding layer is disposed on a side of the thin film circuit board facing the bottom plate.
6. The keyboard as claimed in claim 4, wherein the light shielding layer is disposed on the backlight module.
7. The keyboard of claim 6, wherein the backlight module comprises:
a reflector plate;
a shading sheet located on one side of the reflector sheet close to the bottom plate, wherein the shading layer is arranged on one side of the shading sheet close to the bottom plate; and
and the light guide plate is clamped between the reflecting sheet and the shading sheet.
8. The keyboard of claim 6, wherein the backlight module comprises:
a reflector plate;
a shading sheet, which is positioned at one side of the reflection sheet close to the bottom plate; and
and the light guide plate is clamped between the reflecting sheet and the shading sheet, wherein the shading layer is arranged between the shading sheet and the light guide plate.
9. The keyboard as claimed in claim 3 or 7, wherein an orthogonal projection of the light shielding layer onto the bottom plate covers the one of the through holes.
10. The keyboard as claimed in claim 5 or 8, wherein an outer edge of the light-shielding layer is completely engaged with an inner edge of the one of the through holes.
11. The keyboard of claim 1, wherein the light-shielding layer is a black ink layer.
12. A keyboard, comprising:
a bottom plate having a plurality of through holes;
a film circuit board arranged on the bottom plate;
the backlight module is arranged on one side of the bottom plate, which is far away from the thin film circuit board, and is configured to emit light towards the bottom plate;
a plurality of key assemblies arranged on the film circuit board, wherein each key assembly comprises a reset piece positioned above one of the through holes; and
a light shielding layer disposed between the backlight module and the reset element, wherein an orthographic projection of the light shielding layer projected onto the thin film circuit board covers an orthographic projection of the reset element projected onto the thin film circuit board, and the light shielding layer is used for preventing light from reaching the reset element through one of the through holes;
the other through holes except the one of the through holes surround the one of the through holes and form a plurality of light penetrating parts, and light rays emitted by the backlight module towards the bottom plate can at least penetrate through the film circuit board from the light penetrating parts of the bottom plate to reach the key assembly above.
13. The keyboard as claimed in claim 12, wherein the light shielding layer is disposed between the thin film circuit board and the reset member.
14. The keyboard as claimed in claim 12, wherein the light shielding layer is disposed on a side of the thin film circuit board facing the bottom plate.
15. The keyboard as claimed in claim 12, wherein the light shielding layer is disposed on the backlight module.
16. The keyboard of claim 15, wherein the backlight module comprises:
a reflector plate;
a shading sheet located on one side of the reflector sheet close to the bottom plate, wherein the shading layer is arranged on one side of the shading sheet close to the bottom plate; and
and the light guide plate is clamped between the reflecting sheet and the shading sheet.
17. The keyboard of claim 15, wherein the backlight module comprises:
a reflector plate;
a shading sheet, which is positioned at one side of the reflection sheet close to the bottom plate; and
and the light guide plate is clamped between the reflecting sheet and the shading sheet, wherein the shading layer is arranged between the shading sheet and the light guide plate.
18. The keyboard as claimed in claim 13 or 17, wherein an orthogonal projection of the light-shielding layer onto the bottom plate covers the one of the through holes.
19. The keyboard as claimed in claim 14 or 16, wherein an outer edge of the light-shielding layer is completely engaged with an inner edge of the one of the through holes.
20. A keyboard, comprising:
a bottom plate having a plurality of through holes;
a film circuit board arranged on the bottom plate;
the backlight module is arranged on one side of the bottom plate, which is far away from the thin film circuit board, and is configured to emit light towards the bottom plate;
a plurality of key assemblies disposed on the thin film circuit board, each of the key assemblies including a reset element disposed above one of the through holes, wherein an orthographic projection of the reset element projected on the bottom plate overlaps a portion of the one of the through holes; and
a light shielding layer located between the thin film circuit board and the reset member, the light shielding layer being used to prevent light from reaching the reset member through one of the through holes;
the other through holes except the one of the through holes surround the one of the through holes and form a plurality of light penetrating parts, and light rays emitted by the backlight module towards the bottom plate can at least penetrate through the film circuit board from the light penetrating parts of the bottom plate to reach the key assembly above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002025.XA CN110875154B (en) | 2018-08-30 | 2018-08-30 | Keyboard with a keyboard body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002025.XA CN110875154B (en) | 2018-08-30 | 2018-08-30 | Keyboard with a keyboard body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110875154A CN110875154A (en) | 2020-03-10 |
| CN110875154B true CN110875154B (en) | 2022-02-25 |
Family
ID=69714759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811002025.XA Active CN110875154B (en) | 2018-08-30 | 2018-08-30 | Keyboard with a keyboard body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110875154B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202024193U (en) * | 2011-01-22 | 2011-11-02 | 苏州达方电子有限公司 | Backlight module and light-emitting keyboard |
| CN202434396U (en) * | 2012-02-10 | 2012-09-12 | 精元电脑股份有限公司 | Light guide diaphragm structure of luminous keyboard |
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| CN110875154A (en) | 2020-03-10 |
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