Control device and perspective key structure

Abstract

The invention provides a control device and a perspective key structure. The control device comprises a display panel and a perspective key structure. The perspective key structure is arranged above the display panel. The perspective key structure comprises at least one key cap, at least one hollow key frame and at least one elastic element. The key cap is of a hard structure and is provided with an assembly structure. The hollow key frame is provided with an assembling structure. The assembling structure of the key cap and the assembling structure of the hollow key frame can be assembled and combined together. The elastic element is arranged between the display panel and the key cap. The elastic element comprises a hollow elastic wall and a hollow bottom. The hollow key frame is fixed on the hollow elastic wall. The hollow elastic wall is located between the hollow key frame and the hollow bottom, and the hollow elastic wall has deformation and reset capabilities.

Description

Technical Field

[0001] The present invention relates to a see-through key structure and a control device using the see-through key structure. The see-through key structure is installed on a display panel, which allows the graphic images of the display panel to be fully revealed, and also provides the pressing feel of a physical key so that the user can select multiple functions or instructions corresponding to the graphic images. Background Art

[0002] The existing control devices with transparent key structures lack the design of replaceable keycaps, which cannot meet the current consumer's desire to be different and express themselves. In addition, when the user presses the keycap, the existing design still transmits the pressing force to the switch circuit below through the elastic element which is set on the side of the keycap and is a soft structure. However, since the soft elastic element absorbs the kinetic energy of the transmission, it is impossible to faithfully transmit the pressing force downward to the switch circuit. Therefore, in addition to failing to meet the user's demand for pressing feel, there is also the concern that the switch circuit cannot be triggered in time and smoothly. Summary of the invention

[0003] In response to user needs and the defects of existing designs, the present invention provides a see-through key structure with replaceable keycaps, and also provides a see-through key structure that can faithfully transmit the pressing force downward, and applies the above-mentioned see-through key structure design to a control device.

[0004] According to one embodiment of the present invention, a control device is provided. The control device includes a display panel and a see-through key structure. The display panel outputs at least one graphic image and at least one non-graphic image. The see-through key structure is arranged above the display panel, and the see-through key structure shields the non-graphic image in the vertical direction and reveals the graphic image. The see-through key structure includes at least one keycap, at least one hollow key frame and at least one elastic element. The keycap is a light-transmissive keycap, the keycap is a hard structure, and the keycap has an assembly structure. The hollow key frame has an assembly structure, and the keycap and the hollow key frame can be assembled together or disassembled and separated through the assembly structure of the keycap and the assembly structure of the hollow key frame. The elastic element is arranged between the display panel and the keycap. The elastic element includes a hollow elastic wall and a hollow bottom, the hollow key frame is fixed on the hollow elastic wall, the hollow elastic wall is located between the hollow key frame and the hollow bottom, and the hollow elastic wall has the ability to deform and reset. The graphic images output by the display panel can be revealed after penetrating upwards through the hollow bottom, the hollow elastic wall, the hollow key frame and the key cap.

[0005] In some embodiments of the present invention, the key frame is a hard structure.

[0006] In some embodiments of the present invention, the material of the key frame may be selected from one of the following: polycarbonate, polyoxymethylene, aluminum alloy, aluminum-magnesium alloy and zinc alloy.

[0007] In some embodiments of the present invention, the hollow elastic wall and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection and glue dispensing.

[0008] In some embodiments of the present invention, the assembly structure of the key cap is a hook, and the assembly structure of the hollow key frame is a slot.

[0009] In some embodiments of the present invention, the hollow key frame is formed with at least one protruding structure at the lower edge.

[0010] In some embodiments of the present invention, the control device further includes a switch circuit disposed between the transparent key structure and the display panel.

[0011] In some embodiments of the present invention, the switching circuit includes an upper film layer, a spacer and a lower film layer, the upper film layer includes a top surface, at least one light-transmitting opening and a bottom surface, the light-transmitting opening of the upper film layer is formed between the top surface of the upper film layer and the bottom surface of the upper film layer, and the bottom surface of the upper film layer faces the lower film layer, the lower film layer includes a top surface, at least one light-transmitting opening and a bottom surface, the light-transmitting opening of the lower film layer is formed between the top surface of the lower film layer and the bottom surface of the lower film layer, and the top surface of the lower film layer faces the upper film layer, the graphic images generated by the display panel can pass upward through the light-transmitting opening of the lower film layer and the light-transmitting opening of the upper film layer, and the spacer is arranged between the bottom surface of the upper film layer and the top surface of the lower film layer to separate the upper film layer and the lower film layer.

[0012] In some embodiments of the present invention, the upper film layer also includes a circuit contact, which is formed on the bottom surface of the upper film layer, and the lower film layer also includes a circuit contact, which is formed on the top surface of the lower film layer. The circuit contact of the upper film layer overlaps with the circuit contact of the lower film layer in the vertical direction, and the circuit contact of the upper film layer is separated from the circuit contact of the lower film layer by a spacer.

[0013] In some embodiments of the present invention, the circuit contacts of the hollow key frame and the upper film layer overlap in the vertical direction, and the circuit contacts of the hollow key frame and the lower film layer overlap in the vertical direction.

[0014] In some embodiments of the present invention, a protruding structure is formed at the lower edge of the hollow key frame, and the protruding structure, the circuit contacts of the upper film layer, and the circuit contacts of the lower film layer are overlapped in the vertical direction.

[0015] In some embodiments of the present invention, the spacer is ink, formed on the bottom surface of the upper film layer or the top surface of the lower film layer, and adjacent to the circuit contact of the upper film layer or the circuit contact of the lower film layer.

[0016] In some embodiments of the present invention, the spacer is a spacer film layer, the spacer film layer has at least one light-transmitting opening and at least one indentation, the light-transmitting opening of the upper film layer, the light-transmitting opening of the lower film layer, and the light-transmitting opening of the spacer film layer are arranged overlapping in the vertical direction, and the circuit contacts of the upper film layer, the indentation of the spacer film layer, and the circuit contacts of the lower film layer are arranged overlapping in the vertical direction.

[0017] In some embodiments of the present invention, the control device also includes a contact film layer, which is arranged between the upper film layer and the transparent key structure, and the contact film layer has a top surface, a bottom surface and a protruding structure. The protruding structure of the contact film layer is formed on the top surface of the contact film layer, and the protruding structure of the contact film layer, the circuit contacts of the upper film layer and the circuit contacts of the lower film layer are arranged overlapping in the vertical direction.

[0018] In some embodiments of the present invention, the control device also includes a contact membrane layer, which is arranged between the upper film layer and the transparent button structure. The contact membrane layer has a contact area and a light-transmitting area. The contact area covers the non-graphic image in the vertical direction, and the light-transmitting area reveals the graphic image in the vertical direction.

[0019] In some embodiments of the present invention, the display panel is a touch display panel.

[0020] In some embodiments of the present invention, the touch display panel adopts a resistive touch mechanism or a capacitive touch mechanism.

[0021] In some embodiments of the present invention, the control device further includes a protective film, and the protective film is arranged between the transparent key structure and the touch display panel.

[0022] In some embodiments of the present invention, the elastic element further includes a bearing portion, and the bearing portion is disposed at the bottom of the hollow key frame.

[0023] According to another embodiment of the present invention, a transparent key structure is provided for installation on a display panel. The transparent key structure includes at least one keycap, at least one hollow key frame and at least one elastic element. The keycap is a hard structure, and the keycap has an assembly structure. The hollow key frame is a hard structure, and the hollow key frame has an assembly structure. The keycap and the hollow key frame can be assembled together or disassembled and separated via the assembly structure of the keycap and the assembly structure of the hollow key frame. The elastic element is a soft structure. The elastic element includes a hollow elastic wall and a hollow bottom. The hollow key frame is fixed on the hollow elastic wall, and when the keycap and the hollow key frame are disassembled and separated, the hollow key frame is still fixed on the hollow elastic wall.

[0024] In some embodiments of the present invention, the material of the hollow key frame can be selected from one of the following: polycarbonate, polyoxymethylene, aluminum alloy, aluminum-magnesium alloy and zinc alloy.

[0025] In some embodiments of the present invention, the hollow elastic wall and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection and glue dispensing.

[0026] In some embodiments of the present invention, the assembly structure of the key cap is a hook, and the assembly structure of the hollow key frame is a slot.

[0027] In some embodiments of the present invention, the hollow key frame is formed with at least one protruding structure at the lower edge.

[0028] According to another embodiment of the present invention, a transparent key structure is provided for installation on a display panel. The transparent key structure includes at least one key cap, at least one elastic element, and at least one hollow key frame. The key cap is a hard structure. The elastic element is a soft structure. The hollow key frame is pre-fixed on the elastic element, and the hollow key frame is arranged between the key cap and the elastic element. The hollow key frame is a hard structure. The switch circuit is arranged between the elastic element and the display panel.

[0029] In some embodiments of the present invention, when the key cap is pressed downward, the hollow key frame is driven downward, and the switch circuit is triggered through the hollow key frame.

[0030] In some embodiments of the present invention, the elastic element and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection, and glue dispensing.

[0031] According to another embodiment of the present invention, a transparent key structure is provided for installation on a touch display panel. The transparent key structure includes at least one keycap, at least one elastic element and at least one hollow key frame. The keycap is a hard structure. The elastic element is a soft structure. The hollow key frame is pre-fixed on the elastic element, the hollow key frame is located between the keycap and the elastic element, and the hollow key frame is a hard structure. When the keycap is pressed downward, the hollow key frame is driven downward, and the touch display panel is triggered through the hollow key frame.

[0032] In some embodiments of the present invention, the elastic element and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection, and glue dispensing.

[0033] In some embodiments of the present invention, the material of the hollow key frame can be selected from one of the following: polycarbonate, polyoxymethylene, aluminum alloy, aluminum-magnesium alloy and zinc alloy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a three-dimensional diagram of a control device provided according to a first embodiment of the present invention.

[0035] Figure 2 for Figure 1 Partial exploded view of the control device.

[0036] Figure 3 for Figure 2 In the control device, the exploded view of the button structure, contact membrane layer and switch circuit can be seen.

[0037] Figure 4 for Figure 3 An exploded view of the transparent button structure and the contact membrane layer.

[0038] Figure 5 for Figure 3 A partial exploded view of the transparent button structure and the contact membrane layer.

[0039] Figure 6 for Figure 3 A partial exploded view of the transparent button structure and the contact membrane layer from another perspective.

[0040] Figure 7 for Figure 3 Exploded diagram of the switch circuit.

[0041] Figure 8 for Figure 1 A cross-sectional view of the control device taken along section line AA.

[0042] Fig. 9 for Figure 8 A partially enlarged schematic diagram of .

[0043] Fig.10 It is an exploded view of a control device provided according to an embodiment of the present invention when a spacer film layer is used as a spacer element of a switch circuit.

[0044] Fig.11 It is a cross-sectional schematic diagram of a control device provided according to an embodiment of the present invention, in which the spacer of the switch circuit adopts a spacer film layer.

[0045] Fig.12 It is a partial exploded view of a control device provided according to a second embodiment of the present invention.

[0046] Fig.13 for Fig.12 A cross-sectional schematic diagram of the provided control device.

[0047] Fig.14 It is a partially enlarged schematic diagram of the elastic element extending out of the carrying portion in the control device provided according to an embodiment of the present invention.

[0048] The reference numerals are as follows:

[0049] 1A: Control Device

[0050] 1B: Control Device

[0051] 2: Cover

[0052] 21: Opening

[0053] 3: Shell

[0054] 4: Transparent button structure

[0055] 41: Keycaps

[0056] 411: Pressing surface

[0057] 412: Sidewall

[0058] 413: Bottom

[0059] 414: Assembling the structure

[0060] 42: Hollow key frame

[0061] 421: Assembling the structure

[0062] 422: Protruding structure

[0063] 43: Elastic element

[0064] 431: Hollow elastic wall

[0065] 432: Hollow bottom

[0066] 433: snap-fit ​​part

[0067] 434: Bearing part

[0068] 44: Switching circuit

[0069] 441: Upper film layer

[0070] 4411: Top

[0071] 4412: Light-transmitting opening

[0072] 4413: Bottom

[0073] 4414: Line contact

[0074] 442: Ink

[0075] 443: Lower film layer

[0076] 4431: Top

[0077] 4432: Light-transmitting opening

[0078] 4433: Bottom

[0079] 4434: Line contact

[0080] 444: Spacer film layer

[0081] 4441: Light-transmitting opening

[0082] 4442: Indentation

[0083] 5A: Display panel

[0084] 5B: Display Panel

[0085] 51: Sub display area

[0086] 52: Background area

[0087] 53: Graphics and images

[0088] 54: Non-graphic images

[0089] 6: Accommodation space

[0090] 7: Contact film layer

[0091] 71: Contact area

[0092] 72: Light-transmitting area

[0093] 73: Top

[0094] 74: Bottom

[0095] 75: Protruding structure

[0096] 8: Protective film

[0097] 81: Light-transmitting opening DETAILED DESCRIPTION

[0098] The following embodiments are provided for detailed description. The embodiments are only used as examples and do not limit the scope of the invention. In addition, the drawings in the embodiments omit unnecessary elements or elements that can be completed by conventional techniques to clearly show the technical features of the invention.

[0099] The present invention provides a transparent key structure and a control device using the transparent key structure. Figures 1 to 9 According to a first embodiment of the present invention, a control device 1A is provided. The control device 1A can be a live broadcast controller, a food ordering machine, an audio and video streaming controller, an image editing controller, a peripheral device controller, or a shortcut key controller.

[0100] The control device 1A includes a cover 2, a housing 3, a transparent key structure 4 and a display panel 5A.

[0101] The cover 2 has at least one opening 21, each opening 21 corresponds to the position and size of the keycap 41 in the transparent key structure 4, so that the keycap 41 can be exposed from the opening 21 for the user to press or operate. This embodiment uses the cover 2 having multiple openings 21 as an example, but is not limited thereto.

[0102] The cover 2 and the housing 3 together sandwich a receiving space 6, and the transparent key structure 4 and the display panel 5A are disposed in the receiving space 6. In addition, the control device 1A may also be provided with a processor, a signal processing device, and a communication interface, which communicate and connect with the key structure 4 and the display panel 5A via signals.

[0103] The transparent key structure 4 includes at least one key cap 41, at least one hollow key frame 42, at least one elastic element 43 and a switch circuit 44, wherein each key cap 41 is matched with a hollow key frame 42 and an elastic element 43 in a vertical direction. In addition, in this embodiment, the transparent key structure 4 has a plurality of key caps 41 and a plurality of hollow key frames 42 as an example for description, but the present invention is not limited thereto.

[0104] The keycap 41 has a pressing surface 411, a side wall 412 and a bottom surface 413, wherein the side wall 412 is located between the pressing surface 411 and the bottom surface 413. The keycap 41 is a light-transmitting keycap, such as fully transparent or translucent, so that the light generated by the display panel 5A, such as graphic images, can penetrate upward through the keycap 41 to allow the user to see it. In addition, the keycap 41 is a hard structure and will not be deformed due to the user's pressing. The keycap 41 has at least one assembly structure 414, such as four hooks formed on the four side walls 412. In addition, the side wall 412 of the keycap 41 also includes a groove 4121, and the groove 4121 is formed above the assembly structure 414.

[0105] The hollow key frame 42 is pre-fixed and formed on the elastic element 43, and after the hollow key frame 42 and the key cap 41 are assembled together, the hollow key frame 42 will be located between the key cap 41 and the elastic element 43. The hollow key frame 42 is a hard structure, and the material can be engineering plastic or environmentally friendly plastic, such as polycarbonate (PC) or polyoxymethylene (POM), or metal material, such as aluminum alloy, aluminum-magnesium alloy, zinc alloy, etc. The hollow key frame 42 has at least one assembly structure 421, such as Figure 4-Figure 6 Four slots are shown formed inside the hollow key frame 42 .

[0106] In this embodiment, the keycap 41 and the hollow key frame 42 can be detached or assembled together via the assembly structure 411 of the keycap 41 and the assembly structure 421 of the hollow key frame 42. In this way, when the keycap 41 is damaged, it can be repaired and replaced alone without replacing the entire transparent key structure 4. Furthermore, the user can also replace a special keycap 41, such as a keycap with a braille structure formed on the surface, or replace a keycap 41 with a different color, shape or structure, so as to meet the needs of different consumers.

[0107] The elastic element 43 is a soft structure with soft elasticity, which can be used to provide elastic force when the keycap 41 moves up and down. The elastic element 43 has a hollow elastic wall 431 and a hollow bottom 432. The hollow elastic wall 431 and the hollow bottom 432 form a crater structure that is approximately rectangular, circular or trapezoidal in appearance, and because the center of the crater structure is a hollow design, the light generated by the display panel 5A, such as graphic images, will directly and unhinderedly pass upward through the hollow elastic wall 431 and the hollow bottom 432 of the elastic element 43 and then be transmitted upward to the keycap 41. The hollow elastic wall 431 is used to connect and carry the hollow key frame 42, and the center of the hollow key frame 42 is also a hollow structure, so it will not hinder the light generated by the display panel 5A.

[0108] The elastic element 43 includes a hollow elastic wall 431, a hollow bottom 432 and a clamping portion 433, and the hollow key frame 42 is fixed and combined on the hollow elastic wall 431. In this embodiment, the hollow elastic wall 431 and the hollow key frame 42 are pre-combined by one of the following methods: embedded injection, embedded extrusion, double injection and glue point combination. In addition, when the keycap 41 and the hollow key frame 42 are disassembled and separated, the hollow key frame 42 is still fixed on the hollow elastic wall 421, and the combination relationship between the middle key frame 42 and the elastic element 43 will not be affected by the removal of the keycap 41.

[0109] In addition, when the keycap 41 is combined with the hollow key frame 42, the locking portion 433 of the elastic element 43 will also extend into the groove 4121 of the side wall 412 of the keycap 41 and fit tightly with the groove 4121, which helps to improve the airtightness between the keycap 41 and the elastic element 43, and also allows the assembly structure 414 of the keycap 41 and the assembly structure 421 of the key frame 42 to be more tightly combined.

[0110] The hollow elastic wall 431 is located between the hollow key frame 42 and the hollow bottom 432. The hollow elastic wall 431 has the ability to deform and reset, and can be bent or compressed. In addition, in this embodiment, the elastic element 43 has at least one hollow elastic wall 431 and at least one hollow bottom 432. Adjacent hollow bottoms 432 can be connected together to make the elastic element 43 an integrated diaphragm structure. In addition, in other specific embodiments according to the present invention, adjacent hollow bottoms 432 can also be independently arranged without being connected, and the present invention is not limited thereto.

[0111] The display area of ​​the display panel 5A is divided into at least one sub-display area 51 and at least one background area 52, wherein the background area 52 is the area outside the sub-display area 51, which is used to separate adjacent sub-display areas 51 so that there are clearer boundaries between the sub-display areas 51. Through pre-setting or control, the display panel 5A will output or display a graphic image 53 in the sub-display area 51. The graphic image 53 includes a specific picture, information or icon, not a simple background light, which is different from the backlight mechanism used in the previous backlit keyboard. In addition, the graphic image 53 can be set, controlled and replaced by the user. Furthermore, the display panel 5A will display a non-graphic image 54 in the background area 52, such as a background color, or will not generate light and will not display any image.

[0112] In this embodiment, the display panel 5A having a plurality of sub-display areas 51 and a background area 52 is used as an example for description, but the present invention is not limited thereto.

[0113] In the control device 1A provided in the present embodiment, the see-through key structure 4 is disposed above the display panel 5A, and the see-through key structure 4 will shield the non-graphic image 54 and reveal the graphic image 53 in the vertical direction. In addition, the elastic element 43 can be made of a dark or black material, so that the hollow bottom 432 of the elastic element 43 can shield the background area 52 of the display panel 5A below or the non-graphic image 54 generated in the area, so that the graphic image 53 output by each sub-display area 51 on the display panel 5A can be more independent in the user's visual recognition without being disturbed by the adjacent graphic image 53. In this way, the graphic image 53 output by the display panel 5A can smoothly penetrate the hollow bottom 432, the hollow elastic wall 431, the hollow key frame 42 and the key cap 41 upwards to be revealed and directly seen by the user.

[0114] In the control device provided by the present invention, the display panel matched with the transparent key structure 4 can be a display panel that simply has only a display function, such as a liquid crystal display panel (LCD), an organic light emitting diode (OLED) panel, an electrophoretic display (EPD) panel, or a cholesterol liquid crystal (ChLCD) panel, etc., or it can also be selected from a touch display panel with a touch input function, such as a resistive touch display panel or a capacitive touch display panel.

[0115] In the control device 1A provided in the first embodiment, a display panel 5A having a simple display function is selected to be matched with the transparent key structure 4. Therefore, the control device 1A will add a switch circuit 44 between the hollow bottom 432 of the transparent key 4 and the display panel 5A. This switch circuit 44 can convert the user's pressing action into a pressing signal and transmit it to the control circuit or the main board of the control device 1.

[0116] The switch circuit 44 includes an upper film layer 441, a spacer, and a lower film layer 443. The upper film layer 441 includes a top surface 4411, at least one light-transmitting opening 4412, and a bottom surface 4413, wherein the light-transmitting opening 4412 of the upper film layer 441 is formed between the top surface 4411 of the upper film layer 441 and the bottom surface 4413 of the upper film layer 441, and the bottom surface 4413 of the upper film layer 441 faces the lower film layer 443. The lower film layer 443 includes a top surface 4431, at least one light-transmitting opening 4432, and a bottom surface 4433, wherein the light-transmitting opening 4432 of the lower film layer 443 is formed between the top surface 4431 of the lower film layer 443 and the bottom surface 4433 of the lower film layer 443, and the top surface 4431 of the lower film layer 443 faces the upper film layer 441. The graphic image 53 generated by the display panel 5A can be viewed by the user through the light-transmitting opening 4432 of the lower film layer 443 and the light-transmitting opening 4412 of the upper film layer 441, and then through the elastic element 43, the hollow key frame 42 and the light-transmitting key cap 41. The spacer is disposed between the bottom surface 4413 of the upper film layer 441 and the top surface 4431 of the lower film layer 443 to separate the upper film layer 441 from the lower film layer 443.

[0117] In this embodiment, the upper film layer 441 has a plurality of light-transmitting openings 4412 and the lower film layer 443 has a plurality of corresponding light-transmitting openings 4432 as an example for description, but the present invention is not limited thereto.

[0118] In this embodiment, the spacer is selected from an ink 442, including printing ink, hot baking ink, quick-drying ink, moisture curing ink, etc., which is formed on the bottom surface 441 of the upper film layer 441 and the top surface 4431 of the lower film layer 443, adjacent to the circuit contact 4414 of the upper film layer 441 or the circuit contact 4434 of the lower film layer 443, so that the circuit contact 4414 of the upper film layer 441 and the circuit contact 4434 of the lower film layer 443 can be separated. Since this embodiment can select a suitable gap or area to form the ink 442 in a narrow space or layout range, it is very suitable for the structure in which both the upper film layer 441 and the lower film layer 443 have light-transmitting openings 4412 and 4432, and it can also simplify the difficulty of alignment and assembly of the switch circuit 44. In addition, the present invention can also form the ink 442 on the bottom surface 4413 of the upper film layer 441 or the top surface 4431 of the lower film layer 443 and solidify it. In addition, the shape of the ink 442 can be dots, strips, crosses, L-shapes, geometric shapes, irregular shapes, continuous or discontinuous, etc.

[0119] The upper film layer 441 includes at least one circuit contact 4414, and the circuit contact 4414 of the upper film layer 441 is formed on the bottom surface 4413 of the upper film layer 441. The lower film layer 443 includes at least one circuit contact 4434, and the circuit contact 4434 of the lower film layer 443 is formed on the top surface 4431 of the lower film layer 443. The circuit contact 4414 of the upper film layer 441 overlaps with the circuit contact 4434 of the lower film layer 443 in the vertical direction, and the circuit contact 4414 of the upper film layer 441 is separated from the circuit contact 4434 of the lower film layer 443 by a spacer such as ink 442. Before the switch circuit 44 is triggered or pressed, there is a distance between the circuit contacts 4414 and 4434 separated by a spacer such as ink 442. When the switch circuit 44 is pressed and the circuit contact 4414 of the upper film layer 441 contacts the circuit contact 4434 of the lower film layer 443 , the switch circuit 44 can output a pressing signal and transmit it to the control circuit or the main board of the control device 1A.

[0120] The circuit contacts 4414 of the upper film layer 441 are arranged near the light-transmitting opening 4412, and adjacent circuit contacts 4414 are connected by circuits. The circuit contacts 4434 of the lower film layer 443 are arranged near the light-transmitting opening 4432, and adjacent circuit contacts 4434 are connected by circuits.

[0121] In addition, in the control device 1A provided in the present embodiment, the switch circuit 44 below is triggered by the hollow key frame 42, so the hollow key frame 42 overlaps with the circuit contact 4414 of the upper film layer 441 in the vertical direction, and the hollow key frame 42 overlaps with the circuit contact 4434 of the lower film layer 443 in the vertical direction. In this way, when the user presses the keycap 41, the keycap 41 will transmit the pressing force to the hollow key frame 42, and then the hollow key frame 42 will contact the upper film layer 441 downward, so that the circuit contact 4414 of the upper film layer 441 contacts the circuit contact 4434 of the lower film layer 443, and at this time, the switch circuit 44 will output a pressing signal. Since the keycap 41 and the hollow key frame 42 are both hard structures, the user's pressing force can be faithfully and accurately transmitted from the keycap 41 and the hollow key frame 42 downward to the switch circuit 44, so that it can output a pressing signal in time.

[0122] In order to trigger the switch circuit more accurately, the control device 1A provided in this embodiment has a protruding structure 422 formed at the lower edge of the hollow key frame 42, that is, the side facing the switch circuit. The protruding structure 422 is arranged to overlap with the circuit contact 4414 of the upper film layer 441 and the circuit contact 4434 of the lower film layer 443 in the vertical direction. With the arrangement of the protruding structure 422, the user can trigger the switch circuit 44 more smoothly when operating the control device 1A.

[0123] In addition, the present invention can add a contact film layer between the elastic element 43 and the switch circuit 44 according to the needs. Figures 2 to 9 In the control device 1A provided in the first embodiment of the present invention, a contact film layer 7 is selectively provided between the transparent key structure 4 and the upper film layer 441 of the switch circuit 44. Of course, the contact film layer 7 is also omitted in other embodiments of the present invention, and the protruding structure 422 at the lower edge of the hollow key frame 42 is directly used to trigger the switch circuit 44 below.

[0124] The contact film layer 7 has a contact area 71 and a light-transmitting area 72, wherein the contact area 71 can cover the non-graphic image 54 of the display panel 5A in the vertical direction, and the light-transmitting area 72 can expose the graphic image 53 output by the display panel 5A in the vertical direction. In addition, the light-transmitting area 72 can be a hollow structure that allows the light below to pass directly upward, or the light-transmitting area 72 can also be a light-transmitting film layer that can also allow the light below to pass. In this embodiment, the light-transmitting area 72 is a hollow structure as an example.

[0125] The contact film layer 7 has a top surface 73, a bottom surface 74 and a protruding structure 75, wherein the protruding structure 75 is formed on the top surface 73 to help the user trigger the contact of the switch circuit 44 below. The protruding structure 75 of the contact film layer 7, the circuit contact 4414 of the upper film layer 441 and the circuit contact 4434 of the lower film layer 443 are arranged in an overlapping manner in the vertical direction. In addition to being formed on the top surface 73 by attaching, printing, coating and dispensing, the protruding structure 75 can also be an integrally formed structure with the contact film layer 7, that is, when the contact film layer 7 is formed or manufactured, the protruding structure 75 is also formed at the same time. In addition, the material of the protruding structure 75 can be selected from one of the following: rubber, epoxy resin and polyester plastic, light-curing material, moisture-curing material or thermosetting material.

[0126] In the first embodiment of the present invention, the spacer 442 is made of ink, while in other embodiments of the present invention, the spacer may also be made of a spacer film layer 444. Fig.10 and Fig.11 The spacing film layer 444 has at least one light-transmitting opening 4441 and at least one indentation 4442. The light-transmitting opening 4412 of the upper film layer 441, the light-transmitting opening 4432 of the lower film layer 443 and the light-transmitting opening 4441 of the spacing film layer 444 are arranged overlappingly in the vertical direction. The circuit contact 4414 of the upper film layer 441, the indentation 4442 of the spacing film layer 444 and the circuit contact 4434 of the lower film layer 443 are arranged overlappingly in the vertical direction.

[0127] When a display panel with a simple display function is selected to match the see-through key structure 4 according to the embodiment of the present invention, the key structure 4 will be additionally provided with a switch circuit 44 below the hollow bottom 432 of the see-through key structure 4 as in the first embodiment, and the switch circuit 44 is used to identify which keycap 41 the user has pressed or triggered. In this way, the control device 1A can output or execute the control signal or command represented by the graphic image 53 below the keycap 41. When a touch display panel is selected to match the see-through key structure 4 according to the embodiment of the present invention, the user can directly press a keycap 41 in the see-through key structure 4 to trigger the touch display panel below, thereby allowing the control device to output or execute the control signal or command represented by the graphic image 53 below the keycap 41.

[0128] Please refer to Figure 12 to Figure 13According to the second embodiment of the present invention, a control device 1B is provided. The biggest difference between this control device 1B and the control device 1A provided in the first embodiment is that a touch display panel 5B with a touch input function is selected to match the transparent key structure 4, such as a resistive touch display panel or a capacitive touch display panel. When the user directly presses a key cap 41 in the transparent key structure 4, the key cap 41 is pressed downward to drive the hollow key frame 42 downward, and the touch display panel 5B below is triggered through the hollow key frame 42. At this time, the control device 1B can output or execute the control signal or instruction represented by the graphic image 53 below the key cap 41.

[0129] In this embodiment, since a touch display panel 5B is provided below the see-through key structure 4, the touch display panel 5B itself can be used to detect the user's pressing action, so the control device provided in this embodiment does not need to be provided with a switch circuit or a contact film layer, but can directly trigger the touch display panel 5B below through the hollow key frame 42. The cover 2, the housing 3 and the see-through key structure 4 in the control device 1A provided in the first embodiment can all be used in the control device 1B provided in the second embodiment, so they are not repeated here.

[0130] In addition, when the touch display panel 5B adopts a capacitive touch mechanism, the material of the hollow key frame 42 can be preferably selected from one of the following materials: aluminum alloy, aluminum-magnesium alloy and zinc alloy, which is more conducive to triggering the touch display panel 5B below.

[0131] In addition, in order to prevent the hollow key frame 42 from scratching the touch display panel 5B, the second embodiment can choose to add a protective film 8 between the transparent key structure 4 and the touch display panel 5B. When the hollow key frame 42 of the transparent key structure 4 moves downward and touches the touch display panel 5B, it will first contact the protective film 8, thereby achieving the protective effect, and at the same time reducing the sound generated when the hollow key frame 42 touches the touch display panel 5B, achieving the effect of noise reduction. The material of the protective film 8 can be selected from soft materials, such as polyester film, foam film or silicone film. In addition, the protective film 8 can be a whole piece structure with at least one light-transmitting opening 81. When the protective film 8 is a whole piece structure, the protective film 8 has a light-transmitting property, such as transparent or translucent. The light-transmitting opening 81 of the protective film 8 overlaps with the light-transmitting opening 4412 of the upper film layer 441 and the light-transmitting opening 4432 of the lower film layer 443 in the vertical direction, and the size range can also be the same or very close.

[0132] Please refer to Fig.14In order to prevent the hollow key frame 42 from scratching the touch display panel 5B, in other specific embodiments of the present invention, the elastic element 43 may extend a bearing portion 434, and the bearing portion 434 may extend inward to the bottom of the hollow key frame 42, that is, the bearing portion 434 may be disposed between the hollow key frame and the touch display panel 5B. In this way, when the user presses the key cap 41 and drives the hollow key frame 42 to move downward, the hollow key frame 42 will not directly touch the touch display screen 5B, but will allow the bearing portion 434 of the elastic element 43 to touch the touch display panel 5B. In this way, in addition to achieving the protection effect, the sound of the touch is also reduced to achieve the effect of noise reduction.

[0133] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any other equivalent changes or modifications that do not deviate from the spirit disclosed in the present invention should be included in the inventive concept of the present invention.

Claims

1. A control device, comprising: A display panel outputting at least one graphic image and at least one non-graphic image; as well as A see-through key structure is disposed above the display panel. The see-through key structure shields non-graphic images in the vertical direction and reveals graphic images. The see-through key structure includes: At least one keycap, the keycap is a light-transmissive keycap, the keycap is a hard structure, and the keycap has an assembly structure; At least one hollow key frame, the hollow key frame having an assembly structure, the key cap and the hollow key frame can be assembled together or disassembled and separated through the assembly structure of the key cap and the assembly structure of the hollow key frame; and At least one elastic element, the elastic element is arranged between the display panel and the key cap, the elastic element includes a hollow elastic wall and a hollow bottom, the hollow key frame is fixed on the hollow elastic wall, the hollow elastic wall is located between the hollow key frame and the hollow bottom, and the hollow elastic wall has the ability to deform and reset; The graphic images output by the display panel can be revealed after penetrating upward through the hollow bottom, the hollow elastic wall, the hollow key frame and the key cap.

2. The control device as claimed in claim 1, wherein the key frame is a hard structure.

3. The control device as claimed in claim 2, wherein the material of the key frame can be selected from one of the following: polycarbonate, polyoxymethylene, aluminum alloy, aluminum-magnesium alloy and zinc alloy.

4. The control device as described in claim 1, wherein the hollow elastic wall and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection and dispensing. 5 . The control device as claimed in claim 1 , wherein the assembly structure of the key cap is a hook, and the assembly structure of the hollow key frame is a slot.

6. The control device as claimed in claim 1, wherein the hollow key frame has at least one protruding structure formed at a lower edge.

7. The control device as claimed in claim 1, further comprising a switch circuit arranged between the transparent key structure and the display panel.

8. The control device as described in claim 7, wherein the switch circuit includes an upper film layer, a spacer and a lower film layer, the upper film layer includes a top surface, at least one light-transmitting opening and a bottom surface, the light-transmitting opening of the upper film layer is formed between the top surface of the upper film layer and the bottom surface of the upper film layer, and the bottom surface of the upper film layer faces the lower film layer, the lower film layer includes a top surface, at least one light-transmitting opening and a bottom surface, the light-transmitting opening of the lower film layer is formed between the top surface of the lower film layer and the bottom surface of the lower film layer, and the top surface of the lower film layer faces the upper film layer, the graphic images generated by the display panel can pass upward through the light-transmitting opening of the lower film layer and the light-transmitting opening of the upper film layer, and the spacer is arranged between the bottom surface of the upper film layer and the top surface of the lower film layer to separate the upper film layer and the lower film layer.

9. In the control device as described in claim 8, the upper film layer also includes a circuit contact, and the circuit contact of the upper film layer is formed on the bottom surface of the upper film layer, and the lower film layer also includes a circuit contact, and the circuit contact of the lower film layer is formed on the top surface of the lower film layer, the circuit contact of the upper film layer overlaps with the circuit contact of the lower film layer in the vertical direction, and the circuit contact of the upper film layer and the circuit contact of the lower film layer are separated by a spacer.

10. The control device as claimed in claim 9, wherein the circuit contacts of the hollow key frame and the upper film layer overlap in the vertical direction, and the circuit contacts of the hollow key frame and the lower film layer overlap in the vertical direction.

11. The control device as claimed in claim 9, wherein a protruding structure is formed at the lower edge of the hollow key frame, and the protruding structure, the circuit contacts of the upper film layer and the circuit contacts of the lower film layer are overlapped in the vertical direction.

12. The control device as claimed in claim 9, wherein the spacer is ink, formed on the bottom surface of the upper film layer or the top surface of the lower film layer, and adjacent to the circuit contact of the upper film layer or the circuit contact of the lower film layer.

13. In the control device as described in claim 9, the spacer is a spacer film layer, the spacer film layer has at least one light-transmitting opening and at least one indentation, the light-transmitting opening of the upper film layer, the light-transmitting opening of the lower film layer and the light-transmitting opening of the spacer film layer are arranged overlapping in the vertical direction, and the circuit contacts of the upper film layer, the indentation of the spacer film layer and the circuit contacts of the lower film layer are arranged overlapping in the vertical direction.

14. The control device as described in claim 9 further includes a contact film layer, which is arranged between the upper film layer and the transparent key structure, and the contact film layer has a top surface, a bottom surface and a protruding structure. The protruding structure of the contact film layer is formed on the top surface of the contact film layer, and the protruding structure of the contact film layer, the circuit contacts of the upper film layer and the circuit contacts of the lower film layer are arranged overlapping in the vertical direction.

15. The control device as described in claim 9 further includes a contact membrane layer, which is arranged between the upper film layer and the transparent button structure, and the contact membrane layer has a contact area and a light-transmitting area, the contact area covers the non-graphic image in the vertical direction, and the light-transmitting area reveals the graphic image in the vertical direction.

16. The control device as claimed in claim 1, wherein the display panel is a touch display panel. 17 . The control device as claimed in claim 16 , wherein the touch display panel adopts a touch mechanism of resistive type or capacitive type. 18 . The control device according to claim 16 , further comprising a protective film, wherein the protective film is disposed between the transparent key structure and the touch display panel.

19. The control device as claimed in claim 16, wherein the elastic element further comprises a bearing portion, and the bearing portion is disposed at the bottom of the hollow key frame.

20. A transparent key structure, for installation on a display panel, the transparent key structure comprising: At least one keycap, the keycap is a hard structure, and the keycap has an assembly structure; At least one hollow key frame, the hollow key frame is a hard structure, the hollow key frame has an assembly structure, the key cap and the hollow key frame can be assembled together or disassembled and separated through the assembly structure of the key cap and the assembly structure of the hollow key frame; as well as At least one elastic element is a soft structure, the elastic element includes a hollow elastic wall and a hollow bottom, the hollow key frame is fixed on the hollow elastic wall, when the key cap is disassembled and separated from the hollow key frame, the hollow key frame is still fixed on the hollow elastic wall.

21. The see-through key structure as claimed in claim 20, wherein the material of the hollow key frame can be selected from one of the following: polycarbonate, polyoxymethylene, aluminum alloy, aluminum-magnesium alloy and zinc alloy.

22. The see-through key structure as described in claim 20, wherein the hollow elastic wall and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection, and glue point combination.

23. The see-through key structure as claimed in claim 20, wherein the assembly structure of the key cap is a hook, and the assembly structure of the hollow key frame is a slot.

24. The see-through key structure as claimed in claim 20, wherein the hollow key frame has at least one protruding structure formed at the lower edge.

25. A transparent key structure, for installation on a display panel, the transparent key structure comprising: At least one keycap, the keycap is a hard structure; At least one elastic element, the elastic element is a soft structure; At least one hollow key frame is pre-fixed on the elastic element, the hollow key frame is arranged between the key cap and the elastic element, and the hollow key frame is a hard structure; as well as A switch circuit is disposed between the elastic element and the display panel; When the key cap is pressed downward, the hollow key frame is driven downward, and the switch circuit is triggered through the hollow key frame.

26. The see-through key structure as described in claim 25, wherein the elastic element and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection, and glue point combination.

27. A transparent key structure, used for being installed on a touch display panel, the transparent key structure comprising: At least one keycap, the keycap is a hard structure; At least one elastic element, the elastic element is a soft structure; as well as At least one hollow key frame is pre-fixed on the elastic element, the hollow key frame is located between the key cap and the elastic element, and the hollow key frame is a hard structure; When the key cap is pressed downward, the hollow key frame is driven downward, and the touch display panel is triggered through the hollow key frame.

28. The see-through key structure as described in claim 27, wherein the elastic element and the hollow key frame are combined together by one of the following methods: embedded injection, embedded extrusion, double-material injection, and glue point combination.

29. The see-through key structure as claimed in claim 27, wherein the material of the hollow key frame can be selected from one of the following: polycarbonate, polyoxymethylene, aluminum alloy, aluminum-magnesium alloy and zinc alloy.

Images