CN111796686A - Input device - Google Patents
Input device Download PDFInfo
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- CN111796686A CN111796686A CN201910266119.6A CN201910266119A CN111796686A CN 111796686 A CN111796686 A CN 111796686A CN 201910266119 A CN201910266119 A CN 201910266119A CN 111796686 A CN111796686 A CN 111796686A
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- led unit
- driving current
- driving
- input device
- light beam
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
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- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Led Device Packages (AREA)
Abstract
The invention provides an input device, which comprises a universal serial bus interface, a white light-emitting diode unit, a red light-emitting diode unit, a green light-emitting diode unit, a blue light-emitting diode unit and a driving part, wherein the driving part is used for receiving electric power through the universal serial bus interface to drive at least one of the white light-emitting diode unit, the red light-emitting diode unit, the green light-emitting diode unit and the blue light-emitting diode unit to output light beams, so that the input device can provide light beams with high brightness and specific colors to the outside.
Description
Technical Field
The present invention relates to the field of input devices, and in particular, to an input device with a light emitting function.
Background
Common input devices, such as a mouse device and a keyboard device, are usually electrically connected to the computer 2 through the usb interface, so that the computer 2 can provide the power required by the input device during operation through the usb interface, and a user can perform input operations on the computer 2 by operating the input device. For example, the keyboard device can allow a user to directly input characters and symbols into the computer 2, and the mouse device can allow a user to hold the mouse device with a palm to move a mouse cursor on the screen of the computer 2, and perform functions such as clicking or scrolling on an image or a window on the screen of the computer 2 according to the manipulation of the user's fingers.
In order to increase the usability and entertainment of the input device, an input device having a light-emitting function, such as a light-emitting keyboard device or a light-emitting mouse device, has been proposed. Please refer to fig. 1, which is a conceptual diagram of some components of a conventional input device with a light emitting function. The input device 1 comprises a universal serial bus interface 11, a red light-emitting diode unit 12, a green light-emitting diode unit 13, a blue light-emitting diode unit 14, a microprocessor 15 and a driving circuit 16, wherein the universal serial bus interface 11 is electrically connected between the computer 2 and the microprocessor 15, and the driving circuit 16 is connected among the microprocessor 15, the red light-emitting diode unit 12, the green light-emitting diode unit 13 and the blue light-emitting diode unit 14; the microprocessor 15 can obtain power from the computer 2 through the usb interface 11, and further can provide the first driving current I11, the second driving current I12, and the third driving current I13 to the red led unit 12, the green led unit 13, and the blue led unit 14, respectively.
Furthermore, the red led unit 12 can output a red light beam when the first driving current I11 is transmitted to the red led unit 12 through the driving circuit 16, the green led unit 13 can output a green light beam when the second driving current I12 is transmitted to the green led unit 13 through the driving circuit 16, and the blue led unit 14 can output a blue light beam when the third driving current I13 is transmitted to the blue led unit 14 through the driving circuit 16. In response to the practical application requirement, the red light beam, the green light beam and the blue light beam can be mixed with each other to provide the light beam with a specific color to the outside of the input device 1, wherein the requirement of white light is most common.
However, the conventional input device 1 having a light emitting function has a limitation in use. Taking the USB2.0 interface as an example, the USB interface 11 is a USB2.0 interface, the input device 1 can only receive 5V of operating voltage and 500 milliamperes (mA), and in order to enable the input device 1 to provide white light formed by mixing red, green and blue light beams, the first driving current I11, the second driving current I12 and the third driving current I13 can only average the operating current (500 mA) of the input device 1, that is, the upper limit of the first driving current I11, the upper limit of the second driving current I12 and the upper limit of the third driving current I13 are all only between 150 mA and 170 mA, which results in the defect that the white light provided by the input device 1 has insufficient brightness.
Similarly, as mentioned above, since the upper limit of the driving current of the first driving current I11, the upper limit of the driving current of the second driving current I12 and the upper limit of the driving current of the third driving current I13 are only about 150 ma to 170 ma, the input device 1 may have insufficient red brightness when only providing the red light beam, the input device 1 may have insufficient green brightness when only providing the green light beam, and the input device 1 may have insufficient blue brightness when only providing the blue light beam. As is apparent from the above description, the conventional input device 1 has poor light emission efficiency.
In addition, since the conventional input device 1 with light emitting function only modulates (modulates) the color of the light beam by the red light beam output by the red led unit 12, the green light beam output by the green led unit 13, and the blue light beam output by the blue led unit 14, so that the flexibility of modulation of the color on the chromaticity coordinate is very limited, especially on the commonly used white light, in order to make the white light beam conform to the required white balance color temperature, it is often necessary to simultaneously adjust the first driving current I11, the second driving current I12, and the third driving current I13, and after many tests and corrections, the color of the light beam provided by the input device 1 can reach the corresponding chromaticity coordinate.
As can be seen from the above description, the conventional input device still has room for improvement.
Disclosure of Invention
The present invention is directed to an input device having a white led unit, which improves the overall brightness of a light beam provided by the input device and facilitates and provides flexibility in the modulation of chromaticity coordinates.
In a preferred embodiment, the present invention provides an input device, comprising:
a universal serial bus interface;
a white light emitting diode unit;
a red light emitting diode unit;
a green light emitting diode unit;
a blue light emitting diode unit; and
a driving part electrically connected among the USB interface, the white LED unit, the red LED unit, the green LED unit and the blue LED unit, and used for receiving power through the USB interface to provide a first driving current for the white LED unit, and also used for receiving the power through the USB interface to provide a second driving current for the red LED unit, and/or provide a third driving current for the green LED unit, and/or provide a fourth driving current for the blue LED unit;
the white light emitting diode unit outputs a white light beam in response to the first driving current, the red light emitting diode unit outputs a red light beam in response to the second driving current, the green light emitting diode unit outputs a green light beam in response to the third driving current, the blue light emitting diode unit outputs a blue light beam in response to the fourth driving current, and at least one of the red light beam, the green light beam and the blue light beam is used for mixing with the white light beam to enable the input device to provide a light beam with a white balance color temperature outwards.
In a preferred embodiment, the present invention also provides an input device, comprising:
a universal serial bus interface;
a white light emitting diode unit;
a red light emitting diode unit;
a green light emitting diode unit;
a blue light emitting diode unit; and
a driving part electrically connected among the USB interface, the white LED unit, the red LED unit, the green LED unit and the blue LED unit, and used for receiving power through the USB interface to provide a first driving current for the white LED unit, and also used for receiving the power through the USB interface to provide a second driving current for the red LED unit, and/or provide a third driving current for the green LED unit, and/or provide a fourth driving current for the blue LED unit;
wherein the white light emitting diode unit outputs a white light beam in response to the first driving current, the red light emitting diode unit outputs a red light beam in response to the second driving current, the green light emitting diode unit outputs a green light beam in response to the third driving current, the blue light emitting diode unit outputs a blue light beam in response to the fourth driving current, the first driving current has a first upper limit of driving current, the first upper limit of driving current is X1 milliamperes (mA), the usb interface has a working current, the working current is X milliamperes (mA); wherein the first upper limit of the driving current satisfies the following relation:
0.8X≦X1≦X。
drawings
FIG. 1: is a conceptual diagram of some elements of the conventional input device with a light-emitting function.
FIG. 2: a conceptual diagram of some components of an input device according to a preferred embodiment of the invention is shown.
Description of reference numerals:
1 input device 2 computer
3 input device 4 electronic device
11 usb interface 12 red led unit
13 green led unit 14 blue led unit
15 microprocessor 16 driving circuit
31 universal sequence bus interface 32 white light-emitting diode unit
33 red led unit 34 green led unit
35 blue light emitting diode unit 36 driving part
361 control unit 362 driving circuit
3610 microprocessor 3611 first drive chip (wafer)
3612 second drive chip 3613 third drive chip
3614 fourth driver chip 3621 first resistor
3622 second resistor 3623 third resistor
3624 fourth resistor I11 first drive current
I12 second drive Current I13 third drive Current
I31 first drive Current I32 second drive Current
I33 third drive Current I34 fourth drive Current
Detailed Description
The input device is electrically connected to the electronic device through a universal serial bus interface and is used for a user to operate and input actions to the electronic device. In one embodiment, the input device is a light-emitting mouse device, the electronic device electrically connected to the light-emitting mouse device is a computer, and the light-emitting mouse device can be held by a palm of a user to move a mouse cursor on a computer screen, and perform functions such as clicking or scrolling on an image or a window on the computer screen according to the manipulation of the user's finger. In another embodiment, the input device is a light-emitting keyboard device, the electronic device electrically connected to the light-emitting keyboard device is a computer, the light-emitting keyboard device includes a plurality of keys classified into a general key, a numeric key and a function key, and the user can touch and press the keys with fingers to make the keyboard device generate corresponding key signals to the computer, so that the computer executes corresponding functions, for example, the general key is used for inputting symbols such as english letters, the numeric key is used for inputting numbers, and the function key is used for providing various shortcut functions, for example, F1-F12. Of course, the light-emitting mouse device and the light-emitting keyboard device are only two embodiments of the input device disclosed in the present disclosure, and the electronic device is not limited to a computer, and those skilled in the art can make any equivalent design changes according to the actual application.
Please refer to fig. 2, which is a conceptual diagram of some components of an input device according to a preferred embodiment of the invention. The input device 3 includes a usb interface 31, a white led unit 32, a red led unit 33, a green led unit 34, a blue led unit 35, and a driving portion 36, wherein the usb interface 31 is electrically connected to the electronic device 4, and the driving portion 36 is electrically connected between the usb interface 31, the white led unit 32, the red led unit 33, the green led unit 34, and the blue led unit 35, so that the driving portion 36 can receive power from the electronic device 4 through the usb interface 31, and the white led unit 32, the red led unit 33, the green led unit 34, and the blue led unit 35 can obtain driving currents required for operation.
In the preferred embodiment, the driving portion 36 includes a control unit 361 and a driving circuit 362, the control unit 361 is electrically connected to the usb interface 31, and the driving circuit 362 is electrically connected between the control unit 361 and the white led unit 32, the red led unit 33, the green led unit 34, and the blue led unit 35. Preferably, but not limited thereto, the control unit 361 includes a microprocessor 3610 and a first driving chip 3611, a second driving chip 3612, a third driving chip 3613 and a fourth driving chip 3614 corresponding to the white led unit 32, the red led unit 33, the green led unit 34 and the blue led unit 35, respectively, and the driving circuit 362 includes a first resistor 3621, a second resistor 3622, a third resistor 3623 and a fourth resistor 3624 corresponding to the white led unit 32, the red led unit 33, the green led unit 34 and the blue led unit 35, respectively, wherein the first resistor 3621 is electrically connected to the first driving chip 3611 for controlling the amount of current flowing into the white led unit 32 (hereinafter referred to as a first driving current I31) and/or an upper limit of current (hereinafter referred to as a first upper limit of driving current), the second resistor 3622 is electrically connected to the second driving chip 3612 for controlling the amount and/or upper limit of the current flowing into the red led unit 33 (hereinafter, referred to as the second driving current I32) (hereinafter, referred to as the second driving current upper limit), the third resistor 3623 is electrically connected to the third driving chip 3613 for controlling the amount and/or upper limit of the current flowing into the green led unit 34 (hereinafter, referred to as the third driving current I33) (hereinafter, referred to as the third driving current upper limit), and the fourth resistor 3624 is electrically connected to the fourth driving chip 3614 for controlling the amount and/or upper limit of the current flowing into the blue led unit 35 (hereinafter, referred to as the fourth driving current I34) (hereinafter, referred to as the fourth driving current upper limit).
It is understood that the above-mentioned driving portion 36 is only one embodiment, and not limited to the above-mentioned embodiments, and those skilled in the art can make any equivalent design changes according to the practical application, for example, the control unit 361 of the driving unit 36 may be configured to include only the microprocessor 3610 but not the first driving chip 3611, the second driving chip 3612, the third driving chip 3613 and the fourth driving chip 3614, the first resistor 3621 of the driving circuit 362 is electrically connected between the microprocessor 3610 and the white led unit 32, the second resistor 3622 of the driving circuit 362 is electrically connected between the microprocessor 3610 and the red led unit 33, the third resistor 3623 of the driving circuit 362 is electrically connected between the microprocessor 3610 and the green led unit 34, the fourth resistor 3624 of the driving circuit 362 is electrically connected between the microprocessor 3610 and the blue led unit 35.
Furthermore, the driving portion 36 can provide a first driving current I31 to the white led unit 32 to drive the white led unit 32 to output a white light beam according to actual application requirements, can also provide a second driving current I32 to the red led unit 33 to drive the red led unit 33 to output a red light beam according to actual application requirements, can provide a third driving current I33 to the green led unit 34 to drive the green led unit 34 to output a green light beam according to actual application requirements, and can provide a fourth driving current I34 to the blue led unit 35 to drive the blue led unit 35 to output a blue light beam according to actual application requirements.
The above practical application requirements may be, for example: when the input device 3 needs to provide white light to the outside but the white light beams output by the white led unit 32 do not reach white balance, such as when the white light beams output by the white led unit 32 are warm or cold, the driving portion 36 can drive at least one of the red led unit 33, the green led unit 34 and the blue led unit 35 to mix at least one of the red light beams, the green light beams and the blue light beams with the white light beams output by the white led unit 32, so that the input device 3 provides light beams with white balance color temperature to the outside; second, in a case that the input device 3 needs to provide a light beam with a specific color to the outside, the specific color referred herein is not the color of the light beam output by any one of the white led unit 32, the red led unit 33, the green led unit 34, and the blue led unit 35, the driving portion 36 can drive at least two of the white led unit 32, the red led unit 33, the green led unit 34, and the blue led unit 35, so that at least two of the white light beam, the red light beam, the green light beam, and the blue light beam are mixed to make the input device 3 provide the light beam with the specific color to the outside; thirdly, in the case that the input device 3 only needs to provide red light outwards, the driving portion 36 may only provide the second driving current I32 to the red led unit 33 to drive the red led unit 33 to output a red light beam; in the case that the input device 3 only needs to provide green light to the outside, the driving portion 36 may only provide the third driving current I33 to the green led unit 34 to drive the green led unit 34 to output a green light beam; fifth, in the case that the input device 3 only needs to provide blue light externally, the driving portion 36 may only provide the fourth driving current I34 to the blue led unit 35 to drive the blue led unit 35 to output the blue light beam.
In particular, since the white led unit 32 is disposed in the input device 3 according to the present disclosure, when the input device 3 needs to provide white light, it is no longer necessary to simultaneously drive the red led unit 33, the green led unit 34 and the blue led unit 35 to output red light beams, green light beams and blue light beams for mixing, and therefore, the advantages are obtained in that the second driving current I32 for driving the red led unit 33, the third driving current I33 for driving the green led unit 34 and the fourth driving current I34 for driving the blue led unit 35 are no longer required to equally divide the operating currents of the usb interface 31 as described in the prior art, that is, the upper limit of the first driving current I31, the upper limit of the second driving current I32, The upper limit of the third driving current I33 and the upper limit of the fourth driving current I34 may be respectively approximately equal to the operating current of the usb interface 31.
Further, since the upper limit of the first driving current I31 may be approximately the same as the operating current of the usb interface 31, when the white led unit 32 is driven to output a white light beam, the luminance of the white light that the input device 3 can provide to the outside is greater than the luminance of the white light that the input device 1 can provide in the prior art, and in one embodiment, the luminance of the white light that the input device 3 can provide to the outside is more than 1.5 times the luminance of the white light that the input device 1 can provide in the prior art.
Moreover, since the upper limit of the second driving current I32 can be approximately the same as the operating current of the usb interface 31, when the red led unit 33 is driven to output a red light beam, the luminance of the red light that can be provided by the input device 3 is greater than the luminance of the red light that can be provided by the input device 1 in the prior art, and in one embodiment, the luminance of the red light that can be provided by the input device 3 in the present disclosure is greater than 3 times the luminance of the red light that can be provided by the input device 1 in the prior art.
Moreover, since the upper limit of the third driving current I33 can be approximately the same as the operating current of the usb interface 31, when the green led unit 34 is driven to output a green light beam, the brightness of the green light that can be provided by the input device 3 is greater than the brightness of the green light that can be provided by the input device 1 in the prior art, and in one embodiment, the brightness of the green light that can be provided by the input device 3 in the present disclosure is greater than 3 times the brightness of the green light that can be provided by the input device 1 in the prior art.
Moreover, since the upper limit of the fourth driving current I34 may be approximately the same as the operating current of the usb interface 31, when the blue led unit 35 is driven to output the blue light beam, the luminance of the blue light that the input device 3 can provide to the outside is greater than the luminance of the blue light that the input device 1 can provide in the prior art, and in one embodiment, the luminance of the blue light that the input device 3 can provide to the outside is greater than 3 times the luminance of the blue light that the input device 1 can provide in the prior art.
Preferably, but not limited thereto, when the operating current of the usb interface 31 is X milliamperes (mA) and the first driving current I31 has a first upper driving current limit of X1 milliamperes (mA), the first upper driving current limit satisfies the following relation:
0.8X≦X1≦X；
in a first embodiment, the USB interface 31 is a USB2.0 interface, and the operating current thereof is 500 milliamperes (mA), so the upper limit of the first driving current I31 is between 400 milliamperes (mA) and 500 milliamperes (mA); in a second embodiment, the USB interface 31 is a USB3.0 interface, and the operating current thereof is 900 milliamperes (mA), so the upper limit of the first driving current I31 is between 720 milliamperes (mA) and 900 milliamperes (mA); in a third embodiment, the USB interface 31 is a USB3.1 interface, and the operating current thereof is 5000 milliamperes (mA), so the upper limit of the first driving current I31 is between 4500 milliamperes (mA) and 5000 milliamperes (mA).
It is added that the benefits of the present disclosure of configuring the white led unit 32 in the input device 3 further include: when the input device 3 needs to provide white light to the outside but the white light does not reach the white balance, the driving unit 36 only needs to control the current amount of at least one of the second driving current I32, the third driving current I33 and the fourth driving current I34 to mix at least one of the red light beam output by the red led unit 33, the green light beam output by the green led unit 34 and the blue light beam output by the blue led unit 35 with the white light beam output by the white led unit 32, so that the input device 3 can provide light beams with white balance color temperature to the outside.
For example, according to a practical application, the driving portion 36 of the input device 3 can only control the current amount of the fourth driving current I34 to mix the blue light beam output by the blue led unit 35 and the white light beam output by the white led unit 32, so that the white light provided by the input device 3 can meet the required white balance standard, and therefore, the present disclosure does not need to control and adjust the second driving current I32, the third driving current I33 and the fourth driving current I34 simultaneously, and then perform a plurality of tests and corrections, as in the input device 1 described in the prior art, to meet the required white balance standard.
Preferably, but not limited thereto, after the white light beam output by the white led unit 32 is mixed with at least one of the red light beam, the green light beam and the blue light beam to provide the light beam with white balance color temperature, the driving unit 36 of the input device 3 may further control the driving power of at least one of the white led unit 32, the red led unit 33, the green led unit 34 and the blue led unit 35 by a Pulse Width Modulation (PWM) method to modulate the gray scale value of the light beam with white balance color temperature.
In addition, since the white led unit 32 is disposed in the input device 3, when the input device 3 needs to provide the light beam with a specific color, the driving unit 36 only needs to drive the white led unit 32, the red led unit 33, the green led unit 34, and the blue led unit 35 to output the light beam and mix the light beam, so as to make the color of the light beam provided by the input device 3 reach the corresponding chromaticity coordinate, which is easier and more flexible in the modulation of the chromaticity coordinate than the input device 1 described in the prior art, which can modulate the color of the light beam provided by the input device 1 only with the red light beam, the green light beam, and the blue light beam.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, so that other equivalent changes or modifications without departing from the spirit of the present invention are intended to be included within the scope of the present disclosure.
Claims (20)
1. An input device, comprising:
a universal serial bus interface;
a white light emitting diode unit;
a red light emitting diode unit;
a green light emitting diode unit;
a blue light emitting diode unit; and
a driving part electrically connected among the USB interface, the white LED unit, the red LED unit, the green LED unit and the blue LED unit, and used for receiving power through the USB interface to provide a first driving current for the white LED unit, and also used for receiving the power through the USB interface to provide a second driving current for the red LED unit, and/or provide a third driving current for the green LED unit, and/or provide a fourth driving current for the blue LED unit;
the white light emitting diode unit outputs a white light beam due to the first driving current, the red light emitting diode unit outputs a red light beam due to the second driving current, the green light emitting diode unit outputs a green light beam due to the third driving current, the blue light emitting diode unit outputs a blue light beam due to the fourth driving current, and at least one of the red light beam, the green light beam and the blue light beam is used for mixing with the white light beam to enable the input device to provide a light beam with a white balance color temperature outwards.
2. The input device according to claim 1, wherein the first driving current has a first upper driving current limit of X1 ma, and the usb interface has an operating current of X ma; wherein the first upper limit of the driving current satisfies the following relation:
0.8X≦X1≦X。
3. the input device of claim 2, wherein the USB interface is a USB2.0 interface and the operating current is 500 milliamps; or is
The universal serial bus interface is a USB3.0 interface, and the working current is 900 milliamperes; or is
The USB interface is a USB3.1 interface, and the working current is 5000 milliamperes.
4. The input device of claim 2, wherein the second driving current has a second upper driving current limit that is approximately the same as the first upper driving current limit; and/or
The third driving current has a third upper driving current limit, and the third upper driving current limit is approximately the same as the first upper driving current limit; and/or
The fourth drive current has a fourth drive current upper limit that is approximately the same as the first drive current upper limit.
5. The input device as claimed in claim 1, wherein the driving portion comprises a control unit and a driving circuit, the control unit is electrically connected to the usb interface, and the driving circuit is electrically connected between the control unit and the white led unit, the red led unit, the green led unit, and the blue led unit.
6. The input device of claim 5, wherein the control unit comprises a microprocessor; the control unit comprises a microprocessor, and a first driving chip, a second driving chip, a third driving chip and a fourth driving chip which are respectively corresponding to the white light-emitting diode unit, the red light-emitting diode unit, the green light-emitting diode unit and the blue light-emitting diode unit.
7. The input device as claimed in claim 5, wherein the driving circuit comprises a first resistor, a second resistor, a third resistor and a fourth resistor corresponding to the white LED unit, the red LED unit, the green LED unit and the blue LED unit, respectively, and the first resistor, the second resistor, the third resistor and the fourth resistor are used for controlling the first driving current, the second driving current, the third driving current and the fourth driving current, respectively.
8. The input device according to claim 1, wherein the driving portion controls a driving power of at least one of the white led unit, the red led unit, the green led unit and the blue led unit through a pulse width modulation method to modulate a gray level of the light beam having the white balance color temperature.
9. The input device of claim 1, being a lighted keyboard device or a lighted mouse device.
10. The input device as claimed in claim 1, electrically connected to a computer through the USB interface, and configured for a user to perform an input operation on the computer.
11. An input device, comprising:
a universal serial bus interface;
a white light emitting diode unit;
a red light emitting diode unit;
a green light emitting diode unit;
a blue light emitting diode unit; and
a driving part electrically connected among the USB interface, the white LED unit, the red LED unit, the green LED unit and the blue LED unit, and used for receiving power through the USB interface to provide a first driving current for the white LED unit, and also used for receiving the power through the USB interface to provide a second driving current for the red LED unit, and/or provide a third driving current for the green LED unit, and/or provide a fourth driving current for the blue LED unit;
wherein the white light emitting diode unit outputs a white light beam in response to the first driving current, the red light emitting diode unit outputs a red light beam in response to the second driving current, the green light emitting diode unit outputs a green light beam in response to the third driving current, the blue light emitting diode unit outputs a blue light beam in response to the fourth driving current, the first driving current has a first upper limit of driving current, the first upper limit of driving current is X1 milliamperes, the usb interface has a working current, and the working current is X milliamperes; wherein the first upper limit of the driving current satisfies the following relation:
0.8X≦X1≦X。
12. the input device of claim 11, wherein at least one of the red light beam, the green light beam and the blue light beam is used for mixing with the white light beam to provide the light beam with a white balance color temperature.
13. The input device according to claim 12, wherein the driving portion controls a driving power of at least one of the white led unit, the red led unit, the green led unit and the blue led unit through a pulse width modulation method to modulate a gray level of the light beam having the white balance color temperature.
14. The input device as claimed in claim 11, wherein at least two of the white light beam, the red light beam, the green light beam and the blue light beam are used to mix light with each other so that the input device provides a light beam with a specific color.
15. The input device of claim 11, wherein the USB interface is a USB2.0 interface and the operating current is 500 milliamps; or is
The universal serial bus interface is a USB3.0 interface, and the working current is 900 milliamperes; or is
The USB interface is a USB3.1 interface, and the working current is 5000 milliamperes.
16. The input device of claim 11, wherein the second driving current has a second upper driving current limit that is approximately the same as the first upper driving current limit; and/or
The third driving current has a third upper driving current limit, and the third upper driving current limit is approximately the same as the first upper driving current limit; and/or
The fourth drive current has a fourth drive current upper limit that is approximately the same as the first drive current upper limit.
17. The input device as claimed in claim 11, wherein the driving portion comprises a control unit and a driving circuit, the control unit is electrically connected to the usb interface, and the driving circuit is electrically connected between the control unit and the white led unit, the red led unit, the green led unit, and the blue led unit.
18. The input device of claim 17, wherein the control unit comprises a microprocessor; the control unit comprises a microprocessor, and a first driving chip, a second driving chip, a third driving chip and a fourth driving chip which are respectively corresponding to the white light-emitting diode unit, the red light-emitting diode unit, the green light-emitting diode unit and the blue light-emitting diode unit.
19. The input device as claimed in claim 17, wherein the driving circuit comprises a first resistor, a second resistor, a third resistor and a fourth resistor corresponding to the white led unit, the red led unit, the green led unit and the blue led unit, respectively, and the first resistor, the second resistor, the third resistor and the fourth resistor are used for controlling the first driving current, the second driving current, the third driving current and the fourth driving current, respectively.
20. The input device of claim 11, being a lighted keyboard device or a lighted mouse device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266119.6A CN111796686A (en) | 2019-04-03 | 2019-04-03 | Input device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266119.6A CN111796686A (en) | 2019-04-03 | 2019-04-03 | Input device |
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| CN111796686A true CN111796686A (en) | 2020-10-20 |
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| CN104115564A (en) * | 2011-12-08 | 2014-10-22 | 先进模拟科技公司 | Serial lighting interface with embedded feedback |
| US20140333216A1 (en) * | 2013-05-10 | 2014-11-13 | Marvell World Trade Ltd. | Multi-string dimmable led driver |
| CN104282672A (en) * | 2013-07-03 | 2015-01-14 | 云光科技股份有限公司 | Color temperature adjustable type light-emitting diode packaging structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239745A (en) * | 2008-12-12 | 2011-11-09 | 密克罗奇普技术公司 | Three-color rgb led color mixing and control by variable frequency modulation |
| CN104115564A (en) * | 2011-12-08 | 2014-10-22 | 先进模拟科技公司 | Serial lighting interface with embedded feedback |
| US20140333216A1 (en) * | 2013-05-10 | 2014-11-13 | Marvell World Trade Ltd. | Multi-string dimmable led driver |
| CN104282672A (en) * | 2013-07-03 | 2015-01-14 | 云光科技股份有限公司 | Color temperature adjustable type light-emitting diode packaging structure |
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Application publication date: 20201020 |