CN106158485A - Luminous keyboard device - Google Patents

Abstract

The invention provides a light-emitting keyboard device which comprises a plurality of keys, a plurality of light-emitting elements and a membrane switch circuit. Each key comprises a keycap and an elastic element, wherein the elastic element is arranged below the keycap and is provided with at least one light emitting area, and each elastic element is provided with a protrusion which is positioned inside the elastic element. The light emitting elements are arranged below the elastic elements and used for generating a plurality of light beams projected to the light emitting areas. The membrane switch circuit is arranged below the plurality of keys, the plurality of elastic elements are arranged on the membrane switch circuit, the protruding parts of the elastic elements are positioned above the plurality of contact points of the membrane switch circuit, and when any key cap is touched and pressed, the protruding parts downwards press the membrane switch circuit, so that the corresponding contact points of the membrane switch circuit are contacted to generate a corresponding key signal. The invention can effectively improve the light use efficiency and the light emitting uniformity.

Description

Illuminated keyboard device

technical field

The present invention relates to a keyboard device, in particular to a keyboard device with a light-emitting function.

Background technique

The keyboard is a commonly used computer peripheral device for inputting text or commands to the computer. Recently, keyboard manufacturers are devoting themselves to developing various keyboards with special functions to meet the various needs of different users. For example, in order to enable users to clearly see the words on the keys in an environment with insufficient light, there is a luminous keyboard. .

The structure of the conventional luminous keyboard will be described below, please refer to FIG. 1 , which is a schematic cross-sectional view of the conventional luminous keyboard.

Firstly, the elements of the existing luminous keyboard will be described. As shown in the figure, the conventional luminous keyboard 1 includes keys 11 , a membrane switch circuit 12 , a support plate 13 and a backlight module 14 .

The button 11 includes a keycap 111 , a scissors connection element 112 and an elastic element 113 . The membrane switch circuit 12 includes an upper circuit board 121 and a lower circuit board 122, the upper circuit board 121 has an upper contact 121a, and the lower circuit board 122 has a lower contact 122a corresponding to the upper contact 121a. The backlight module 14 includes a light guide plate 141 , a reflection plate 142 and a light emitting element 143 .

Next, the key actuation principle of the conventional luminous keyboard 1 will be described. First, the scissors connection element 112 of the key 11 connects the keycap 111 and the support plate 13, the elastic element 113 is arranged between the keycap 111 and the support plate 13 and is located in the accommodation space formed by the scissors connection element 112, the membrane switch The circuit 12 is disposed between the elastic element 113 and the support plate 13 .

When the button 11 is pressed, the keycap 111 moves vertically toward the support plate 13 along with the scissors foot connection element 112, so that the protrusion 113a inside the elastic element 113 touches the membrane switch circuit 12, so that the upper contact 121a of the membrane switch circuit 12 It is in contact with the lower contact 122a for conduction, and then executes the function desired by the user.

Next, the light-emitting principle of the existing light-emitting keyboard 1 will be described. Firstly, the light guide plate 141 and the reflection plate 142 are sequentially disposed under the support plate 13 , and the light emitting element 143 is disposed on one side of the light guide plate 141 . The light-emitting element 143 is used to emit a light beam toward the direction of the light guide plate 141, and the reflector 142 is used to project part of the light beam upward toward the direction of the support plate 13 and pass through the hole 131 of the support plate 13, so that part of the light beam passes through the keycap. 111 light emitting area to produce a luminous effect.

The existing luminous keyboard 1 has the following disadvantages. First of all, although the reflector 142 can assist the light beam to reflect upward, the material of the reflector 142 of the existing light-emitting keyboard 1 can still allow a little light to penetrate, so a part of the downwardly scattered light will pass through the reflector 142, resulting in a decrease in the amount of light. drain.

Furthermore, although the light beam can be diffused to the entire light guide plate 141 when it enters the light guide plate 141, part of the light beam has been reflected out of the light guide plate 141 by the reflector 142 that is closer to the light emitting element 143, so that the light guide plate 141 emits light at a medium distance. The area farther from the element 143 does not have as much light as the area closer to the light emitting element 143 .

Based on the above description, it can be seen that the light use efficiency and uniformity of light emission of the existing luminous keyboard 1 are not ideal, so an improved luminous keyboard is needed to improve the problems of the existing luminous keyboard 1 .

Contents of the invention

The technical problem to be solved by the present invention is to provide a light-emitting keyboard device that improves light use efficiency and light-emitting uniformity in view of the above-mentioned shortcomings existing in the prior art.

The technical solution adopted by the present invention to solve the technical problem is to provide a light-emitting keyboard device, including a plurality of keys, a plurality of light-emitting elements and a membrane switch circuit, each of the plurality of keys includes a keycap and an elastic element , wherein the elastic element is arranged under the keycap, and each of the keycaps has at least one light-emitting area; A light beam: the membrane switch circuit is arranged under the plurality of keys, and the plurality of elastic elements are arranged on the membrane switch circuit, the membrane switch circuit includes an upper circuit board, a lower circuit board and a spacer layer, and the upper circuit board has A plurality of upper contacts, wherein each of the upper contacts is located under a corresponding one of the elastic elements; the lower circuit board is arranged under the upper circuit board, including a plurality of lower contacts corresponding to the plurality of upper contacts; the spacer layer is arranged on The upper circuit board and the lower circuit board are used to isolate the plurality of upper contacts and the plurality of lower contacts; wherein, each of the elastic elements has a protrusion, and the protrusion is located inside the elastic element, and the protrusion The part is located above the upper contact, and when any one of the keycaps is pressed, the protrusion presses down against the membrane switch circuit, so that the upper contact contacts the lower contact to generate a corresponding key signal.

Preferably, the upper contact and the protrusion are ring structures.

Preferably, each of the upper contacts is disposed around a position corresponding to the periphery of the light-emitting element.

Preferably, the plurality of light emitting elements are arranged on an upper surface of the upper circuit board.

Preferably, the luminous keyboard device further includes a plurality of light source lines formed on the upper surface of the upper circuit board, wherein the plurality of light emitting elements are connected by the plurality of light source lines.

Preferably, the plurality of light emitting elements are disposed on an upper surface of the spacer layer.

Preferably, the luminous keyboard device further includes a plurality of light source lines formed on the upper surface of the spacer layer, wherein the plurality of light emitting elements are connected by the plurality of light source lines.

Preferably, the plurality of light emitting elements are arranged on an upper surface of the lower circuit board.

Preferably, the luminous keyboard device further includes a plurality of light source lines formed on the upper surface of the lower circuit board, wherein the plurality of light emitting elements are connected by the plurality of light source lines.

Preferably, the light-emitting keyboard device further includes a light-emitting element circuit board, and the light-emitting element circuit board is arranged under the membrane switch circuit, wherein the plurality of light-emitting elements are arranged on the light-emitting element circuit board.

Preferably, the luminous keyboard device further includes a bottom plate disposed between the membrane switch circuit and the light-emitting element circuit board.

Preferably, the spacing layer has a plurality of openings corresponding to the plurality of upper contacts, when the membrane switch circuit is pressed, the plurality of upper contacts extend into the plurality of openings and connect with the plurality of lower contacts The plurality of key signals are generated by contact.

Preferably, the spacer layer is an insulating film or an ink insulating layer.

Preferably, each key also includes a scissors connection element, wherein the scissors connection element is located between the keycap and the membrane switch circuit and connected to the keycap, so that the keycap is relatively The switching circuit moves up and down.

Preferably, the luminous keyboard device further includes a support plate, the support plate is located below the membrane switch circuit, wherein the support plate includes a plurality of support protrusions, and the plurality of support protrusions pass through the membrane switch circuit and are connected to the membrane switch circuit. A plurality of scissor foot connection elements are used to fix the plurality of scissor foot connection elements.

Preferably, the light-emitting keyboard device further includes a support plate, the support plate is located between the plurality of keycaps and the membrane switch circuit, wherein the support plate includes a plurality of holes, and the plurality of holes are respectively located in the plurality of keycaps below, and the plurality of elastic elements are respectively located in the plurality of holes.

Preferably, the support plate further includes a plurality of support protrusions, and the plurality of support protrusions are respectively located under the plurality of keycaps for fixing the plurality of keycaps.

In the present invention, the light-emitting element of the light-emitting keyboard device is directly arranged under the key, so that the light beam provided by the light-emitting element can directly pass through the elastic element and then project to the key, thereby effectively improving light use efficiency and uniformity of light emission.

Description of drawings

Fig. 1 is a schematic cross-sectional view of an existing luminous keyboard.

Fig. 2 is an exploded view of the luminous keyboard device according to the first preferred embodiment of the present invention.

Fig. 3 is an exploded schematic view of the button of the present invention.

FIG. 4 is a schematic cross-sectional view of the light-emitting keyboard device according to the first preferred embodiment of the present invention.

FIG. 5 is an exploded schematic diagram of a light-emitting keyboard device according to a second preferred embodiment of the present invention.

FIG. 6 is a schematic cross-sectional view of a light-emitting keyboard device according to a second preferred embodiment of the present invention.

FIG. 7 is an exploded view of a light-emitting keyboard device according to a third preferred embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view of a light-emitting keyboard device according to a third preferred embodiment of the present invention.

FIG. 9 is an exploded view of a light-emitting keyboard device according to a fourth preferred embodiment of the present invention.

FIG. 10 is a schematic cross-sectional view of a light-emitting keyboard device according to a fourth preferred embodiment of the present invention.

FIG. 11 is a schematic cross-sectional view of a light-emitting keyboard device according to a fifth preferred embodiment of the present invention.

Fig. 12 is a schematic cross-sectional view of a light-emitting keyboard device according to a sixth preferred embodiment of the present invention.

FIG. 13 is a schematic cross-sectional view of a light-emitting keyboard device according to a seventh preferred embodiment of the present invention.

Fig. 14 is a schematic cross-sectional view of a light-emitting keyboard device according to an eighth preferred embodiment of the present invention.

detailed description

The light-emitting keyboard device of the present invention will be described below with different embodiments. Please refer to FIG. 2 to FIG. 4 first. FIG. 2 is an exploded schematic diagram of a light-emitting keyboard device according to the first preferred embodiment of the present invention. FIG. 3 is an exploded schematic diagram of a button according to the present invention. FIG. The schematic cross-sectional view of the light-emitting keyboard device of the example.

Firstly, the component composition of the luminous keyboard device 2 of this example will be described. The light-emitting keyboard device 2 includes a plurality of keys 20 , a membrane switch circuit 21 , a plurality of light-emitting elements 22 and a support plate 23 . To simplify the drawing, a single button 20 is taken as an example in FIG. 2 for illustration.

Each key 20 includes a keycap 201 , a scissors connection element 202 and an elastic element 203 . FIG. 2 and FIG. 3 respectively show the elastic element 203 from different angles. In order to show the inside of the elastic element 203 more clearly, FIG. 3 shows the elastic element 203 upside down. The membrane switch circuit 21 includes an upper circuit board 211 , a lower circuit board 212 and a spacer layer 213 . The lower surface 211a of the upper circuit board 211 has a plurality of connected upper contacts 214 (shown by dotted lines in FIG. 2 ). The spacer layer 213 is located under the upper circuit board 211 and has a plurality of openings 215 . The lower circuit board 212 is located under the spacer layer 213 and has a plurality of lower contacts 216 connected thereto. Each upper contact 214 corresponds to an opening 215 and a lower contact 216 for generating a key signal. And in this example, the upper contact 214 , the opening 215 and the lower contact 216 are all annular structures. It should be added that the ring structure mentioned above is not limited to a circle, and those shown in the figure are for illustrative purposes only.

Next, the assembly sequence of the light-emitting keyboard device 2 of this example will be described. Firstly, as shown in FIG. 2 and FIG. 4 , a plurality of light emitting elements 22 are disposed on the membrane switch circuit 21 , and the membrane switch circuit 21 is disposed between the plurality of keys 20 and the support plate 23 . In detail, a plurality of light-emitting elements 22 are arranged on the upper surface 211b of the upper circuit board 211 and are respectively located under the plurality of keycaps 201, and a plurality of light source lines 221 (shown by solid lines in FIG. 2 ) are formed on the upper line. The upper surface 211b of the board 211 is connected to a plurality of light emitting elements 22 . Therefore, the light beam generated by each light-emitting element 22 can project upwards to the keycap 201 , so that the light-emitting area 201 a of the keycap 201 produces a luminous effect. It should be added that, in this example, each light-emitting element 22 is located at the center of a corresponding upper contact 214 , that is, each upper contact 214 is disposed around a corresponding light-emitting element 22 .

A plurality of elastic elements 203 are disposed on the upper surface 211b of the upper circuit board 211 and connected to the plurality of keycaps 201 respectively. Moreover, both the upper contact 214 and the light emitting element 22 are located below the elastic element 203 . Furthermore, the elastic element 203 has a protrusion 203 a inside, and the protrusion 203 a is located above the upper contact 214 . In this example, the protruding portion 203 a is a ring structure corresponding to the upper contact 214 , as shown in FIG. 3 . It is supplemented that the plurality of elastic elements 203 can be a plurality of independent elements that are individually pasted on the upper circuit board 211 , and can also be connected to each other. Moreover, the elastic element 203 has light transmittance, so as to allow the light beam generated by the light emitting element 22 to pass through.

And a plurality of scissors connecting elements 202 are also arranged on the upper surface 211b of the upper circuit board 211 and connected to a plurality of keycaps 201 respectively, and each elastic element 203 is located in the accommodation space 202a formed by a scissors connecting element 202 Inside.

In addition, the support plate 23 includes a plurality of support protrusions 231 , and the plurality of support protrusions 231 are exposed on the upper surface 211 b of the upper circuit board 211 through the plurality of through holes 217 of the membrane switch circuit 21 . And the plurality of supporting protrusions 231 are connected to the plurality of scissors connection elements 202 , and the plurality of scissors connection elements 202 are fixed above the membrane switch circuit 21 . In FIG. 2 , each scissors foot connecting element 202 is connected to five supporting protrusions 231 , but not limited thereto, and the number of supporting protrusions 231 corresponding to each scissors foot connecting element 202 can be adjusted according to actual needs.

After the above assembly work is completed, when any keycap 201 is pressed downward, the scissors foot connection element 202 will make the keycap 201 move downward stably and squeeze the elastic element 203, so that the protrusion 203a located inside the elastic element 203 will press down. Arrest the circuit board 211. Then the upper contact 214 of the upper circuit board 211 located under the protrusion 203a extends into the opening 215 of the spacer layer 213 and contacts the lower contact 216 of the lower circuit board 212 to generate a key signal. And when the keycap 201 is no longer pressed, the elastic element 203 provides an elastic force to the keycap 201, so that the keycap 201 moves upward stably to the position when it is not pressed with the assistance of the scissors foot connecting element 202.

In order to improve the above-mentioned problems of poor light use efficiency and luminous uniformity of the existing luminous keyboard 1, the light-emitting element is arranged under the key 11, which can directly provide light beams to the key 11, thereby obtaining better light use efficiency and luminous brightness. Evenness. However, in such an approach, if the light-emitting element is placed under the elastic element 113 of the existing light-emitting keyboard 1, the moving stroke of the elastic element 113 after being squeezed will be hindered, so the user cannot press the keycap. 111 so that the upper contact 121a and the lower contact 122a of the corresponding membrane switch circuit 12 are electrically connected. And if the light-emitting element is placed under the membrane switch circuit 12 of the existing light-emitting keyboard 1 , the upper contact 121 a and the lower contact 122 a will block the light beam from projecting upward to the keycap 111 . Therefore, the method of arranging the light-emitting element under the key 11 and directly providing the light beam to the key 11 cannot be implemented on the existing light-emitting keyboard 1 .

The luminous keyboard device 2 of the present invention is designed as a ring structure by designing the protrusion 203a inside the elastic element 203, the upper contact 214 and the lower contact 216 of the membrane switch circuit 21, and the light emitting element 22 is arranged on the membrane switch circuit 21 correspondingly. The center of the upper contact 214, so that when the keycap 201 moves downward and squeezes the elastic element 203, the protrusion 203a will not be blocked by the light emitting element 22 and can be pressed against the membrane switch circuit 21, so that the upper contact of the upper circuit board 211 214 is in contact with the lower contact 216 of the lower circuit board 212 to generate a key signal. In addition, the light beam emitted by the light emitting element 22 is not blocked by the upper contact 214 and the lower contact 216 and can be projected to the keycap 201 . Therefore, the light-emitting keyboard device 2 disclosed in the present invention can effectively solve the problem that the aforementioned method of arranging the light-emitting elements under the keys and directly providing light beams to the keys cannot be implemented on the existing light-emitting keyboard 1 .

Also, a plurality of light-emitting elements 22 are located on the upper surface 211b of the upper circuit board 211, and the upper circuit board 211 is located on the uppermost layer of the light-emitting keyboard device 2, so the plurality of light-emitting elements 22 are located closest to the plurality of keycaps 201, and It can provide better light use efficiency and higher intensity luminous effect.

The second to eighth preferred embodiments are used below to illustrate other possible modified designs of the light-emitting keyboard device of the present invention. First, the luminous keyboard device 3 of a second preferred embodiment of the present invention will be described. Please refer to FIG. 5 and FIG. 6 at the same time. FIG. A schematic cross-sectional view of the light-emitting keyboard device of the second preferred embodiment.

Different from the first preferred embodiment, in this example, the light emitting element 22 is disposed on the upper surface 213 a of the spacer layer 213 . Specifically, the upper circuit board 211' has a plurality of through holes 211c, and each through hole 211c passes through the center of the upper contact point 214 of the upper circuit board 211'. element 203 below. A plurality of light source lines 221 are formed on the upper surface 213 a of the spacer layer 213 to connect the plurality of light emitting elements 22 .

The light-emitting keyboard device 3 of this example can also solve the problem that the aforementioned method of arranging the light-emitting element under the key and directly providing the light beam to the key cannot be implemented on the existing light-emitting keyboard, thus providing a method for improving light use efficiency and A luminous keyboard device 3 with luminous uniformity.

Other structures and operating principles of the luminous keyboard device 3 of this example are substantially the same as those of the luminous keyboard device 2 of the first preferred embodiment, and will not be repeated here.

Next, the luminous keyboard device 3a of a third preferred embodiment of the present invention will be described. Please refer to FIG. 7 and FIG. 8 at the same time. FIG. A schematic cross-sectional view of a light-emitting keyboard device according to a third preferred embodiment of the invention.

Different from the first preferred embodiment, in this example, the light emitting element 22 is disposed on the upper surface 212 a of the lower circuit board 212 . Specifically, the upper circuit board 211" has a plurality of through holes 211c, the spacer layer 213" has a plurality of through holes 213b connected to the plurality of through holes 211c, and each through hole 211c passes through the upper contact 214 of the upper circuit board 211" Central. A plurality of light-emitting elements 22 are respectively penetrated into a plurality of through holes 213b and exposed below the elastic element 203. A plurality of light source lines 221 are formed on the upper surface 212a of the lower circuit board 212 to connect the plurality of light-emitting elements 22. Furthermore, more The light beams emitted by each light emitting element 22 are projected to the keycap 201 through the multiple through holes 213b of the spacer layer 213 ″ and the multiple through holes 211c of the upper circuit board 211 ″.

The light-emitting keyboard device 3a of this example can also solve the problem that the aforementioned method of arranging the light-emitting element under the key and directly providing the light beam to the key cannot be implemented on the existing light-emitting keyboard, thus providing a method for improving light use efficiency and A luminous keyboard device 3a with luminous uniformity.

The other structures and operating principles of the luminous keyboard device 3 a of this example are substantially the same as those of the luminous keyboard device 2 of the first preferred embodiment, and will not be repeated here.

Next, the light-emitting keyboard device 4 of a fourth preferred embodiment of the present invention will be described. Please refer to FIG. 9 and FIG. 10. FIG. A schematic cross-sectional view of a light-emitting keyboard device according to a fourth preferred embodiment of the invention. The light-emitting keyboard device 4 includes a plurality of keys 30 , a membrane switch circuit 31 , a plurality of light-emitting elements 32 , a support plate 33 and a light-emitting element circuit board 34 . To simplify the drawing, a single key 30 is taken as an example in FIG. 9 for illustration.

Each key 30 includes a keycap 301 , a scissors connection element 302 and an elastic element 303 . The elastic member 303 has a protrusion 303a inside. The membrane switch circuit 31 includes an upper circuit board 311 , a lower circuit board 312 and a spacer layer 313 . The lower surface 311a of the upper circuit board 311 has a plurality of connected upper contacts 314 (shown by dotted lines in FIG. 9 ). The spacer layer 313 is located under the upper circuit board 311 and has a plurality of openings 315 . The lower circuit board 312 is located under the spacer layer 313 and has a plurality of lower contacts 316 connected thereto. Each upper contact 314 has a corresponding opening 315 and a lower contact 316 for generating a key signal. And in this example, the upper contact 314 , the opening 315 and the lower contact 316 are all annular structures.

Different from the first preferred embodiment, the light-emitting keyboard device 4 further includes a light-emitting element circuit board 34 arranged under the support plate 33, and a plurality of light-emitting elements 32 are arranged on the light-emitting element circuit board 34 and are respectively located on a plurality of keys. cap 301 below. Moreover, the membrane switch circuit 31 includes a plurality of through holes 317 , and each through hole 317 passes through the center of the upper contact 314 of the upper circuit board 311 . The support plate 33 includes a plurality of through holes 331 connected to the plurality of through holes 317 . The plurality of light-emitting elements 32 respectively pass through the plurality of through holes 331 of the support plate 33 to be exposed under the elastic element 303 . In addition, the light beams emitted by the plurality of light emitting elements 32 are projected to the plurality of keycaps 301 through the plurality of through holes 331 of the support plate 33 and the plurality of through holes 317 of the membrane switch circuit 31 .

The light-emitting keyboard device 4 of this example can also solve the problem that the aforementioned method of arranging the light-emitting element under the key and directly providing the light beam to the key cannot be implemented on the existing light-emitting keyboard, thus providing a method for improving light use efficiency and A luminous keyboard device 4 with luminous uniformity.

Next, a light-emitting keyboard device 5 according to a fifth preferred embodiment of the present invention will be described. Please refer to FIG. 11 , which is a schematic cross-sectional view of the light-emitting keyboard device according to a fifth preferred embodiment of the present invention. The light-emitting keyboard device 5 includes a plurality of keys 40 , a membrane switch circuit 41 , a plurality of light-emitting elements 42 and a support plate 43 . The membrane switch circuit 41 includes an upper circuit board 411 , a lower circuit board 412 and a spacer layer 413 . A plurality of light emitting elements 42 are disposed on the upper surface of the upper circuit board 411 and respectively located under the plurality of keycaps 401 .

Furthermore, the lower surface of the upper circuit board 411 has a plurality of upper contacts 414 . The spacer layer 413 is located under the upper circuit board 411 and has a plurality of openings 415 . The lower circuit board 412 is located under the spacer layer 413 and has a plurality of lower contacts 416 .

Different from the first preferred embodiment, in this example, each button 40 includes a keycap 401 and an elastic element 402, and the support plate 43 is located between the plurality of keycaps 401 and the membrane switch circuit 41 of the plurality of buttons 40. between. Furthermore, the support plate 43 includes a plurality of holes 431 , and the plurality of holes 431 are located under the plurality of keycaps 401 . A plurality of elastic elements 402 are disposed on the membrane switch circuit 41 and respectively located in a plurality of holes 431 . In addition, a support protrusion 432 is further provided around each hole 431 , and the plurality of keycaps 401 are snapped into the plurality of support protrusions 432 to move up and down relative to the membrane switch circuit 41 . Other structures and operating principles of the luminous keyboard device 5 of this example are substantially the same as those of the luminous keyboard device 2 of the first preferred embodiment, and will not be repeated here.

Next, a light-emitting keyboard device 6 according to a sixth preferred embodiment of the present invention will be described. Please refer to FIG. 12 . FIG. 12 is a schematic cross-sectional view of the light-emitting keyboard device according to a sixth preferred embodiment of the present invention.

Different from the fifth preferred embodiment, in this example, the upper circuit board 411' includes a plurality of through holes 411a, and each through hole 411a passes through the center of the upper contact 414 of the upper circuit board 411'. The plurality of light emitting elements 42 are located on the upper surface of the spacer layer 413 , and the plurality of light emitting elements 42 pass through the plurality of through holes 411 a to be respectively exposed under the elastic element 402 . Other structures and operating principles of the light-emitting keyboard device 6 of this example are substantially the same as those of the light-emitting keyboard device 5 of the fifth preferred embodiment, and will not be repeated here.

Next, a light-emitting keyboard device 6a according to a seventh preferred embodiment of the present invention will be described. Please refer to FIG. 13 . FIG. 13 is a schematic cross-sectional view of the light-emitting keyboard device according to the seventh preferred embodiment of the present invention.

Different from the fifth preferred embodiment, in this example, the upper circuit board 411" includes a plurality of through holes 411a, the spacer layer 413" has a plurality of through holes 413a connected to the plurality of through holes 411a, and each through hole 411a Pass through the center of the upper contact 414 of the upper circuit board 411 ″. A plurality of light emitting elements 42 are located on the upper surface of the lower circuit board 412 , and the plurality of light emitting elements 42 pass through the plurality of through holes 413 a to be respectively exposed under the elastic element 402 . Other structures and operating principles of the light-emitting keyboard device 6 a of this example are substantially the same as the light-emitting keyboard device 5 of the fifth preferred embodiment, and will not be repeated here.

Next, the light-emitting keyboard device 7 according to an eighth preferred embodiment of the present invention will be described. Please refer to FIG. 14 . FIG. 14 is a schematic cross-sectional view of the light-emitting keyboard device according to the eighth preferred embodiment of the present invention.

The light-emitting keyboard device 7 includes a plurality of keys 50 , a membrane switch circuit 51 , a plurality of light-emitting elements 52 , a support plate 53 , a light-emitting element circuit board 54 and a bottom plate 55 .

Each key 50 includes a keycap 501 and an elastic element 502 . The membrane switch circuit 51 includes an upper circuit board 511 , a lower circuit board 512 and a spacer layer 513 . A lower surface of the upper circuit board 511 has a plurality of upper contacts 514 . The spacer layer 513 is located under the upper circuit board 511 and has a plurality of openings 515 . The lower circuit board 512 is located under the spacer layer 513 and has a plurality of lower contacts 516 . The support plate 53 includes a plurality of holes 531, and the plurality of holes 531 are located below the plurality of keycaps 501, and a support protrusion 532 is further provided around each hole 531, and the plurality of keycaps 501 are respectively snapped into the plurality of support protrusions 532 to Move up and down relative to the membrane switch circuit 51 .

Different from the fifth preferred embodiment, the light-emitting keyboard device 7 further includes a bottom plate 55 and a light-emitting element circuit board 54, which are sequentially arranged under the membrane switch circuit 51, and a plurality of light-emitting elements 52 are arranged on the light-emitting element circuit board 54 And are located under the multiple keycaps 501 respectively. Moreover, the membrane switch circuit 51 includes a plurality of through holes 517 , and each through hole 517 passes through the center of the upper contact 514 of the upper circuit board 511 . The bottom plate 55 includes a plurality of through holes 551 connected to the plurality of through holes 517 . The light emitting element 52 passes through the through hole 551 of the bottom plate 55 to be exposed under the elastic element 502 . In addition, the light beams emitted by the plurality of light emitting elements 52 are projected to the plurality of keycaps 501 through the plurality of through holes 551 of the base plate 55 and the plurality of through holes 517 of the membrane switch circuit 51 . The other structures and operating principles of the luminous keyboard device 7 of this example are roughly the same as those of the luminous keyboard device 5 of the fifth preferred embodiment, and will not be repeated here.

It should be noted that, in the first, third, fourth, fifth, seventh and eighth preferred embodiments, the spacer layer can be, for example, an insulating film or an ink insulating layer. However, in the second and sixth preferred embodiments, since a plurality of light-emitting elements and a plurality of light source lines are formed on the spacer layer, the spacer layer uses solid materials such as insulating films. Furthermore, when using solid materials such as insulating films, in addition to directly forming a plurality of ring-shaped openings in the spacer layer, it is also possible to form a plurality of through holes in the spacer layer, and then coat the center of the plurality of through holes. Ink insulating layer to form multiple annular openings.

From the above description, it can be known that the luminous keyboard device of the present invention is designed to place the luminous element directly under the key, so that the light beam provided by the luminous element can be directly projected to the key after passing through the elastic element, effectively improving the light use efficiency and luminous uniformity . In addition, since the protrusion inside the elastic element, the upper contact and the lower contact of the membrane switch circuit are ring-shaped, and each light-emitting element is arranged at the center of the upper contact on the membrane switch circuit, when the keycap moves downward, When the elastic element is squeezed, the protruding part will not be blocked by the light-emitting element but can be pressed against the membrane switch circuit, so that the upper contact contacts the lower contact and generates a key signal. Furthermore, it solves the problem that the above-mentioned method of arranging the light-emitting element under the key and directly providing the light beam to the key cannot be implemented on the existing light-emitting keyboard, which is an invention with great industrial applicability.

The above-described embodiments are only to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those of ordinary skill in the art to understand the content of the present invention and implement it accordingly. When it cannot limit the scope of patent protection of the present invention, That is, all equivalent changes or modifications made according to the spirit disclosed in the present invention should still fall within the scope of patent protection of the present invention.

Claims (17)

1. a lighting keyboard, it is characterised in that including:

Multiple buttons, this button of each of which includes a keycap and a flexible member, and wherein this flexible member sets It is placed in below this keycap, and this keycap each has at least one territory, output optical zone；

Multiple light-emitting components, are arranged at below the plurality of flexible member, in order to produce be projected to the plurality of go out light Multiple light beams in region: and

Film switch circuit, is arranged at below the plurality of button, and the plurality of flexible member is arranged at this thin film On on-off circuit, this film switch circuit includes:

Upper wiring board, has multiple upper contact, and this upper contact of each of which is positioned at corresponding one this elasticity unit Below part；

Lower wiring board, is arranged on this below wiring board, multiple including corresponding to the plurality of upper contact Lower contact；And

Wall, is arranged on this between wiring board and this lower wiring board, connects in order to isolate on the plurality of Point and the plurality of lower contact；

Wherein, this flexible member each has teat, and this teat is positioned at inside this flexible member, and this teat Being positioned at above this upper contact, when this keycap arbitrary is touched, this teat is pressed down against this film switch circuit, The lower contacts of this upper contact and this is made to produce a corresponding push button signalling.

2. lighting keyboard as claimed in claim 1, it is characterised in that this upper contact with this teat is Circulus.

3. lighting keyboard as claimed in claim 1, it is characterised in that this upper contact each is around setting It is placed in should part around light-emitting component.

4. lighting keyboard as claimed in claim 1, it is characterised in that the plurality of light-emitting component is arranged Upper surface of wiring board on this.

5. lighting keyboard as claimed in claim 4, it is characterised in that this lighting keyboard also wraps Including a plurality of light source circuit, this plurality of light source circuit is formed at this upper surface of wiring board on this, the most the plurality of Light-emitting component is connected by this plurality of light source circuit.

6. lighting keyboard as claimed in claim 1, it is characterised in that the plurality of light-emitting component is arranged A upper surface in this wall.

7. lighting keyboard as claimed in claim 6, it is characterised in that this lighting keyboard also wraps Including a plurality of light source circuit, this plurality of light source circuit is formed at this upper surface of this wall, the most the plurality of Optical element is connected by this plurality of light source circuit.

8. lighting keyboard as claimed in claim 1, it is characterised in that the plurality of light-emitting component is arranged A upper surface in this lower wiring board.

9. lighting keyboard as claimed in claim 8, it is characterised in that this lighting keyboard also wraps Including a plurality of light source circuit, this plurality of light source circuit is formed at this upper surface of this lower wiring board, the most the plurality of Light-emitting component is connected by this plurality of light source circuit.

10. lighting keyboard as claimed in claim 1, it is characterised in that this lighting keyboard is also Including light-emitting element circuit board, this light-emitting element circuit board is arranged at below this film switch circuit, wherein should Multiple light-emitting components are arranged on this light-emitting element circuit board.

11. lighting keyboards as claimed in claim 10, it is characterised in that this lighting keyboard is also Including the base plate being arranged between this film switch circuit and this light-emitting element circuit board.

12. lighting keyboards as claimed in claim 1, it is characterised in that this wall has correspondence In multiple perforates of the plurality of upper contact, when this film switch circuit is touched, the plurality of upper contact stretches into The plurality of perforate also produces the plurality of push button signalling with the plurality of lower contacts.

13. lighting keyboards as claimed in claim 1, it is characterised in that this wall is that insulation is thin Film or ink insulating barrier.

14. lighting keyboards as claimed in claim 1, it is characterised in that this button each also includes One scissor connecting element, wherein this scissor connecting element is between this keycap and this film switch circuit And it is connected to this keycap, in order to make this keycap move up and down relative to this film switch circuit.

15. lighting keyboards as claimed in claim 14, it is characterised in that this lighting keyboard is also Including gripper shoe, this gripper shoe is positioned at below this film switch circuit, and wherein this gripper shoe includes multiple support Teat, the plurality of support teat is through this film switch circuit and is connected to the plurality of scissor connecting element, In order to fixing the plurality of scissor connecting element.

16. lighting keyboards as claimed in claim 1, it is characterised in that this lighting keyboard is also Including gripper shoe, this gripper shoe between the plurality of keycap and this film switch circuit, wherein this gripper shoe Including multiple holes, the plurality of hole lays respectively at below the plurality of keycap, and the plurality of flexible member is respectively It is positioned in the plurality of hole.

17. lighting keyboards as claimed in claim 16, it is characterised in that this gripper shoe also includes many Individual support teat, the plurality of support teat lays respectively at below the plurality of keycap, in order to fixing the plurality of keycap.