Foldable touch keyboard capable of preventing mistaken touch based on touch area

Abstract

According to the foldable touch keyboard capable of preventing mistaken touch based on the touch area, the capacitive touch sensor is adopted for detecting the touch area and the touch position by measuring the change of the capacitance value, and when the capacitance value reaches the preset threshold value, the touch action is judged to be effective touch, so that the touch area and the touch position can be effectively controlled. The capacitance value is in positive correlation with the touch area, the preset threshold value of the capacitance value corresponds to the touch area range, the capacitance value conforming to the preset threshold value can be obtained only in the touch area range, the effective touch action can be generated into the key value, the touch area range is valued according to the finger area, and the touch action is ineffective when the touch area is too large or too small. In this way, many misoperation such as palm mistaken touch and multi-finger simultaneous touch can be avoided.

Description

Technical Field

[0001] The invention relates to a foldable touch keyboard, and in particular to a foldable touch keyboard capable of preventing accidental touches based on a touch area. Background Art

[0002] Compared with foldable keyboards, non-foldable traditional keyboards are more common. Traditional keyboards are usually fixed in a certain position for long-term use and are rarely carried around. This is because traditional keyboards are large and inconvenient to carry.

[0003] A foldable keyboard is a foldable keyboard. The purpose of designing a foldable keyboard is to be carried around. However, most foldable keyboards in reality use a key design, and pressing a key requires a certain amount of space, which results in the foldable touch keyboard in the prior art being thicker and heavier.

[0004] Shenzhen Lianou Technology Co., Ltd. has proposed a foldable touch keyboard, which uses touch instead of keystroke, and can greatly reduce the thickness of the keyboard. However, the touch method is prone to misoperation. It can be seen that the foldable touch keyboard of the prior art needs to be improved and perfected. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a foldable touch keyboard that prevents mis-touch based on touch area, and to determine whether it is a mis-operation by the touch area of ​​the touch action, thereby solving the problem that the foldable touch keyboard is prone to mis-operation.

[0006] The technical solution of the present invention is as follows:

[0007] A foldable touch keyboard with touch area-based anti-mistouch function is provided, comprising a first keyboard body and a second keyboard body connected by a rotating shaft, wherein:

[0008] The first keyboard body is provided with a first touch button, and the first touch button includes a first glass touch panel, a first character pressing area provided on the first glass touch panel, and a first capacitive touch sensor provided corresponding to the character in the first character pressing area;

[0009] The second keyboard body is provided with a second touch button, and the second touch button includes a second glass touch panel, a second character pressing area provided on the second glass touch panel, and a second capacitive touch sensor provided corresponding to the character in the second character pressing area;

[0010] The first and second capacitive touch sensors are used to sense a character touch action and obtain a capacitance value corresponding to a touch area of ​​the touch action;

[0011] The first and second keyboard bodies are connected to a processor, which is used for data processing and generating key values. The processor is provided with a touch validation module and a key value generation module, wherein:

[0012] The touch validation module is used to determine that the touch action is a valid touch when the capacitance value reaches a preset threshold;

[0013] The key value generating module is used to generate a key value according to the touch action data when a touch is effective.

[0014] As described above, a foldable touch keyboard based on touch area to prevent false touches, wherein the capacitance value C=εs / d, wherein C represents capacitance, ε is the dielectric constant, s is the area between two conductors, and d is the distance between the two conductors.

[0015] As described above, a foldable touch keyboard based on touch area to prevent accidental touches, wherein the first keyboard body or / and the second keyboard body are connected to a status display screen, and the status display screen is used to display one or more of the keyboard battery power, letter case status and keyboard backlight brightness level.

[0016] As described above, in the foldable touch keyboard based on touch area to prevent accidental touches, the thickness of the status display screen is 5.6 mm, and the thickness of the first keyboard body and the second keyboard body are both 2.8 mm.

[0017] As described above, the foldable touch keyboard based on touch area to prevent accidental touches has a length of 313.2 mm and a width of 100.2 mm when unfolded, and a length of 172.8 mm when folded.

[0018] As described above, a foldable touch keyboard based on touch area to prevent accidental touches has a built-in rechargeable battery, a charging interface of Type-C, a charging power of 10W, and a battery capacity of 500mAh.

[0019] As described above, a foldable touch keyboard based on touch area to prevent accidental touches is also provided with dual-mode Bluetooth, and the operating frequencies of the dual-mode Bluetooth are 2.4 GHz and 5.1 GHz respectively.

[0020] As described above, a foldable touch keyboard based on touch area to prevent accidental touches, wherein the Bluetooth connection distance of the dual-mode Bluetooth is 12m.

[0021] As described above, a foldable touch keyboard based on touch area to prevent accidental touches is also provided, wherein a keyboard power key and a keyboard light brightness adjustment key are provided, wherein the keyboard power key is used to turn the keyboard on and off, and the keyboard light brightness adjustment key includes a - key and a + key, which are used to adjust the brightness of the keyboard light.

[0022] As described above, a foldable touch keyboard that prevents accidental touches based on the touch area is also provided with a linear motor, which is used to vibrate when the pressing action takes effect.

[0023] Compared with the prior art, the present invention provides a foldable touch keyboard based on touch area to prevent false touches, which is provided with a first keyboard body and a second keyboard body connected by a rotating shaft, wherein the first keyboard body is provided with a first touch button, the first touch button includes a first glass touch panel, a first character pressing area arranged on the first glass touch panel, and a first capacitive touch sensor corresponding to the character setting of the first character pressing area; the second keyboard body is provided with a second touch button, the second touch button includes a second glass touch panel, a second character pressing area arranged on the second glass touch panel, and a second capacitive touch sensor corresponding to the character setting of the second character pressing area; the first and second capacitive touch sensors are used to sense character touch actions and obtain capacitance values ​​corresponding to the touch areas of the touch actions; the first and second keyboard bodies are connected to a processor, the processor is used to process data and generate key values, and the processor is provided with a touch validation module and a key value generation module, wherein the touch validation module is used to judge that the touch action is a valid touch when the capacitance value reaches a preset threshold; the key value generation module is used to generate a key value according to the touch action data when the touch is valid. The capacitive touch sensor detects the touch area and touch position by measuring the change of capacitance value. The present invention determines that the touch action is a valid touch when the capacitance value reaches a preset threshold value. The capacitance value is positively correlated with the touch area. The preset capacitance value threshold corresponds to the touch area range. Only within the touch area range can the capacitance value that meets the preset threshold value be obtained, and the touch action can be effective to generate a key value. The touch area range is determined according to the finger area. If the touch area is too large or too small, it is an invalid touch action. In this way, many misoperations can be avoided, such as accidental touch with the palm, simultaneous touch with multiple fingers, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of an unfolded state of a foldable touch keyboard for preventing accidental touch based on the touch area of ​​the present invention;

[0025] Figure 2 It is a schematic diagram of a folded state of a foldable touch keyboard based on touch area prevention of accidental touches according to the present invention;

[0026] Figure 3 It is a front view of a folded state of a foldable touch keyboard that prevents accidental touch based on the touch area of ​​the present invention.

[0027] The numbers in the figure are: 101, first keyboard body; 102, second keyboard body; 103, hinge; 104, status display screen; 105, keyboard power button; 106, keyboard light brightness adjustment button; 107, second character pressing area; 108, first character pressing area; 201, anti-slip pad; 202, aluminum alloy back shell. DETAILED DESCRIPTION

[0028] The present invention provides a foldable touch keyboard based on touch area to prevent accidental touches. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] Regarding the design principle of the present invention, it should be explained in advance that the present invention aims to create an extremely thin and light foldable touch keyboard and reduce misoperation, thereby making it convenient for users to carry. The present invention adopts the working principle of a traditional keyboard based on touch area to prevent misoperation, pre-sets the correspondence between keys and key values, and then generates corresponding key values ​​according to the key operation input by the user; it should be emphasized that the present invention cancels the traditional key design and adopts a glass touch panel. The glass touch panel is provided with a character pressing area in the keyboard layout, and a capacitive touch sensor is provided under the glass touch panel. The capacitive touch sensor is a capacitive touch screen. When the user presses the character pressing area, the capacitive touch sensor will obtain the capacitance value and the touch position. The capacitance value is positively correlated with the touch area. When the capacitance value reaches the preset threshold, the touch action is judged to be a valid touch. When the touch is valid, the processor will generate a corresponding key value according to the touch position. Judging whether the touch action is valid by the touch area can effectively reduce misoperation.

[0030] See also Figure 1-Figure 3 , Figure 1 It is a schematic diagram of an unfolded state of a foldable touch keyboard for preventing accidental touch based on the touch area of ​​the present invention; Figure 2 It is a schematic diagram of a folded state of a foldable touch keyboard based on touch area prevention of accidental touches according to the present invention; Figure 3 1 is a front view of a folded state of a foldable touch keyboard for preventing accidental touch based on the touch area of ​​the present invention; Figure 1-Figure 3As shown, a foldable touch keyboard based on touch area anti-mistouch of the present invention is provided with a first keyboard body 101 and a second keyboard body 102 connected by a rotating shaft 103, wherein the first keyboard body 101 is provided with a first touch button, the first touch button includes a first glass touch panel, a first character pressing area 108 arranged on the first glass touch panel, and a first capacitive touch sensor corresponding to the character setting of the first character pressing area 108; the second keyboard body 102 is provided with a second touch button, the second touch button includes a second glass touch panel, a second character pressing area 107 arranged on the second glass touch panel, and a second capacitive touch sensor corresponding to the character setting of the second character pressing area 107; the first and second capacitive touch sensors are used to sense character touch actions and obtain capacitance values ​​corresponding to the touch areas of the touch actions; the first and second keyboard bodies 102 are connected to a processor, the processor is used for data processing and generating key values, the processor is provided with a touch validation module and a key value generation module, wherein the touch validation module is used to judge that the touch action is a valid touch when the capacitance value reaches a preset threshold; the key value generation module is used to generate a key value according to the touch action data when the touch is valid. Specifically, the foldable touch keyboard of the present invention is provided with a first keyboard body 101 and a second keyboard body 102, the first key body is connected with the second key body by a rotating shaft 103, the rotating shaft 103 is a damping rotating shaft 103, and the first keyboard body 101 can be suspended within any adjustable angle relative to the second keyboard body 102, the angle between the first keyboard body 101 and the second keyboard body 102 is 0 when folded, and the angle is 180° when unfolded and straight, the first keyboard body 101 is provided with a first glass touch panel, the surface of the first glass touch panel is provided with a first character pressing area 108, the second keyboard body 102 is provided with a second glass touch panel, the surface of the second glass touch panel is provided with a second character pressing area 107. The first and second capacitive touch sensors are correspondingly provided below the first and second glass touch panels, and the first and second capacitive touch sensors are capacitive touch screens. Since the capacitive touch sensor is composed of a glass plate, one side of the glass plate has a conductive coating, and there are printed circuit patterns around the outer side of the observation area, these patterns generate electric charges on the surface and are disturbed by the user touching the screen. Therefore, even through the first and second glass touch panels, the capacitive touch sensor can detect touch events, including the size of the touch area and the touch position. The keyboard body of the present invention adopts an aluminum alloy back shell 202, and the glass touch panel is arranged on the aluminum alloy back shell 202. A keyboard circuit is arranged between the glass touch panel and the aluminum alloy back shell 202, specifically including a capacitive touch sensor, a memory, a processor, a backlight and a battery. The first and second character pressing areas 107 are correspondingly provided with a plurality of characters, and the characters described here refer to English letters, numbers and symbols on a traditional keyboard. The principle of generating keyboard key values ​​is prior art and will not be repeated here.The capacitive touch sensor used in the present invention is also a prior art and will not be described in detail. The capacitive touch sensor detects the touch area and touch position by measuring the change in capacitance value. The touch action data refers to the data obtained based on the touch action, such as capacitance value, touch area and touch position, etc. The present invention determines that the touch action is a valid touch when the capacitance value reaches a preset threshold value. The capacitance value is positively correlated with the touch area. The preset capacitance value threshold corresponds to the touch area range. Only within the touch area range can the capacitance value that meets the preset threshold value be obtained, and the touch action can be effective to generate a key value. The touch area range is based on the finger area. If the touch area is too large or too small, it is an invalid touch action. In this way, many misoperations can be avoided, such as palm touch, multi-finger touch, etc. The capacitance value of the capacitive touch sensor C = εs / d, where C represents capacitance, ε is the dielectric constant, s is the area between the two conductors, and d is the distance between the two conductors. The capacitive touch sensor can detect the touch area and touch position. The touch area is positively correlated with the capacitance value. The capacitance value is judged based on the preset threshold. If the capacitance value reaches the preset threshold, the touch action is judged to be a valid touch. When a valid touch occurs, the processor will generate a corresponding key value according to the touch position.

[0031] Based on the above-mentioned foldable touch keyboard based on touch area to prevent false touch, preferably, the first keyboard body 101 or / and the second keyboard body 102 are connected to a status display screen 104. The status display screen 104 is used to display one or more of the keyboard battery power, letter case status and keyboard backlight brightness level. Specifically, the traditional keyboard has a keyboard indicator light to indicate the keyboard status, such as the uppercase and lowercase status. The present invention abandons the traditional keyboard indicator light design and sets a status display screen 104 on the first keyboard body 101 or / and the second keyboard body 102. The status display screen 104 is an OLED display screen, which can display the keyboard battery power, letter case status and keyboard backlight brightness level, etc. In addition to displaying information, the status display screen 104 can also be used for handwriting input. The use of the status display screen 104 enables the foldable touch keyboard of the present invention to display more information, and enables the keyboard to have a handwriting input function, which is impossible for traditional keyboards.

[0032] Based on the above-mentioned foldable touch keyboard based on touch area to prevent false touch, preferably, the thickness of the status display screen 104 is 5.6mm, and the thickness of the first keyboard body 101 and the second keyboard body 102 are both 2.8mm. Specifically, the status display screen 104 is arranged on the first keyboard body 101 or / and the second keyboard body 102, and a battery is arranged below the status display screen 104. The thickness of the status display screen 104 is equal to 2 times the thickness of the first and second keyboard bodies 102. The thickness of the first keyboard body 101 and the second keyboard body 102 after folding is 5.6mm, which is equal to the thickness of the status display screen 104. Further, the foldable touch keyboard of the present invention has a length of 313.2mm and a width of 100.2mm when unfolded, and a length of 172.8mm when folded. It can be seen that after the first keyboard body 101 and the second keyboard body 102 are folded, the foldable touch keyboard is a cuboid with a thickness of 5.6mm, a width of 100.2mm, and a length of 172.8mm. It should be understood that the length, width and thickness are not indicated in the drawings of the present invention. Based on common sense, it can be considered that length>width>thickness, so the length, width and thickness can be correctly identified in the drawings. It should be particularly emphasized that the foldable touch keyboard of the present invention weighs only 152g, and the thickness after folding is 5.6mm, the width is 100.2mm, and the length is 172.8mm. It can be seen that the foldable touch keyboard of the present invention is light and small, and easy to carry.

[0033] Based on the above-mentioned foldable touch keyboard based on touch area to prevent accidental touch, preferably, a rechargeable battery is built in, the charging interface is Type-C, the charging power is 10W, and the battery capacity is 500mAh. Specifically, the portable foldable touch keyboard of the present invention has a built-in rechargeable battery with a battery capacity of 500mAh, which can be used by users for a long time. The battery adopts a Type-C charging interface with a charging power of 10w. It should be emphasized that the portable foldable touch keyboard of the present invention will enter sleep mode when it is not used within a fixed time interval. Sleep mode refers to a low energy consumption state, and the user can wake it up by key operation.

[0034] Based on the above-mentioned foldable touch keyboard based on touch area to prevent accidental touch, preferably, a dual-mode Bluetooth is also provided, and the operating frequencies of the dual-mode Bluetooth are 2.4GHz and 5.1GHz respectively. The Bluetooth connection distance of the dual-mode Bluetooth is 12m. Dual-mode Bluetooth is a common Bluetooth, which can support traditional Bluetooth and low-power Bluetooth at the same time and has better compatibility. The foldable touch keyboard of the present invention can be connected and communicated with more devices, and can be adapted to products of IOS system, Android system and Windows system, which is not available in other folding keyboards.

[0035] like Figure 2 and Figure 3As shown, the portable foldable touch keyboard of the present invention adopts an aluminum alloy back shell 202, and anti-skid pads 201 are set at the four corners of the aluminum alloy back shell 202. The anti-skid pads can effectively prevent the aluminum alloy back shell 202 from contacting the desktop and preventing the aluminum alloy back shell 202 from being scratched. It can also effectively prevent skidding and make the keyboard flat.

[0036] Based on the above-mentioned foldable touch keyboard based on touch area to prevent accidental touch, preferably, a keyboard power key 105 and a keyboard light brightness adjustment key 106 are also provided, wherein the keyboard power key 105 is used to turn on and off the keyboard, and the keyboard light brightness adjustment key 106 includes a - key and a + key, which are used to adjust the brightness of the keyboard light. Specifically, the keyboard power key and the keyboard light brightness adjustment key are provided on one side of the status display screen 104, the keyboard power key 105 is used to turn on and off the keyboard, and can be turned off when not in use, and the keyboard light brightness adjustment key 106 includes a - key and a + key, which are used to adjust the brightness of the keyboard light, so that the user can adjust the brightness of the keyboard light to suit himself.

[0037] Based on the above-mentioned foldable touch keyboard that prevents accidental touch based on touch area, preferably, a linear motor is also provided, and the linear motor is used to vibrate when the pressing action takes effect. Specifically, the present invention sets a character pressing area on the glass touch panel. When the user types, he needs to press in the character pressing area, and cannot obtain key operation feedback like a traditional keyboard. The present invention sets a linear motor. When the user presses the character pressing area, if the pressing action takes effect, the linear motor will vibrate to provide operation feedback.

[0038] The 5.6 mm thickness ultra-thin design of the present invention is inseparable from the glass touch panel, and the key operation feedback on the glass touch panel is inseparable from the linear motor. It can be seen that the technical features of the present invention are interrelated.

[0039] In summary, the present invention provides a foldable touch keyboard based on touch area anti-mistouch, which is provided with a first keyboard body and a second keyboard body connected by a rotating shaft, wherein the first keyboard body is provided with a first touch button, the first touch button includes a first glass touch panel, a first character pressing area arranged on the first glass touch panel, and a first capacitive touch sensor corresponding to the character setting of the first character pressing area; the second keyboard body is provided with a second touch button, the second touch button includes a second glass touch panel, a second character pressing area arranged on the second glass touch panel, and a second capacitive touch sensor corresponding to the character setting of the second character pressing area; the first and second capacitive touch sensors are used to sense character touch actions and obtain capacitance values ​​corresponding to the touch areas of the touch actions; the first and second keyboard bodies are connected to a processor, the processor is used for data processing and generating key values, and the processor is provided with a touch validation module and a key value generation module, wherein the touch validation module is used to judge that the touch action is a valid touch when the capacitance value reaches a preset threshold; the key value generation module is used to generate a key value according to the touch action data when the touch is valid. The capacitive touch sensor detects the touch area and touch position by measuring the change of capacitance value. The present invention determines that the touch action is a valid touch when the capacitance value reaches a preset threshold value. The capacitance value is positively correlated with the touch area. The preset capacitance value threshold corresponds to the touch area range. Only within the touch area range can the capacitance value that meets the preset threshold value be obtained, and the touch action can be effective to generate a key value. The touch area range is determined according to the finger area. If the touch area is too large or too small, it is an invalid touch action. In this way, many misoperations can be avoided, such as accidental touch with the palm, simultaneous touch with multiple fingers, etc.

[0040] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A foldable touch keyboard based on touch area to prevent accidental touch, comprising a first keyboard body and a second keyboard body connected by a rotating shaft, characterized in that: The first keyboard body is provided with a first touch button, and the first touch button includes a first glass touch panel, a first character pressing area provided on the first glass touch panel, and a first capacitive touch sensor provided corresponding to the character in the first character pressing area; The second keyboard body is provided with a second touch button, and the second touch button includes a second glass touch panel, a second character pressing area provided on the second glass touch panel, and a second capacitive touch sensor provided corresponding to the character in the second character pressing area; The first and second capacitive touch sensors are used to sense a character touch action and obtain a capacitance value corresponding to a touch area of ​​the touch action; The first and second keyboard bodies are connected to a processor, which is used for data processing and generating key values. The processor is provided with a touch validation module and a key value generation module, wherein: The touch validation module is used to determine that the touch action is a valid touch when the capacitance value reaches a preset threshold; The key value generating module is used to generate a key value according to the touch action data when a touch is effective.

2. The foldable touch keyboard with anti-mistouch function based on touch area according to claim 1, characterized in that: The first and second capacitive touch sensors are capacitive touch screens, and the capacitance value C=εs / d, wherein C represents capacitance, ε is a dielectric constant, s is an area between two conductors, and d is a distance between the two conductors.

3. The foldable touch keyboard based on touch area to prevent accidental touch according to claim 2, characterized in that: The first keyboard body or / and the second keyboard body are connected to a status display screen; the status display screen is used to display one or more of the keyboard battery power, letter case status and keyboard backlight brightness level.

4. The foldable touch keyboard with anti-mistouch function based on touch area according to claim 2, characterized in that: The thickness of the status display screen is 5.6 mm, and the thickness of the first keyboard body and the second keyboard body are both 2.8 mm.

5. The foldable touch keyboard with anti-mistouch function based on touch area according to claim 4, characterized in that: The length is 313.2mm and the width is 100.2mm when unfolded, and the length is 172.8mm when folded.

6. The foldable touch keyboard with anti-mistouch function based on touch area according to claim 1, characterized in that: It has a built-in rechargeable battery, the charging interface is Type-C, the charging power is 10W, and the battery capacity is 500mAh.

7. The foldable touch keyboard with anti-mistouch function based on touch area according to claim 1, characterized in that: A dual-mode Bluetooth is also provided, and the operating frequencies of the dual-mode Bluetooth are 2.4 GHz and 5.1 GHz respectively.

8. The foldable touch keyboard with anti-mistouch function based on touch area according to claim 7, characterized in that: The Bluetooth connection distance of the dual-mode Bluetooth is 12m.

9. The foldable touch keyboard with anti-mistouch function based on touch area according to claim 1, characterized in that: A keyboard power key and a keyboard light brightness adjustment key are also provided, wherein the keyboard power key is used to turn the keyboard on and off, and the keyboard light brightness adjustment key includes a - key and a + key, which are used to adjust the brightness of the keyboard light.

10. A foldable touch keyboard based on touch area to prevent accidental touch according to any one of claims 1 to 9, characterized in that: A linear motor is also provided, which is used to vibrate when the pressing action takes effect.

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