CN112885634A - Luminous keyboard - Google Patents

Luminous keyboard Download PDF

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Publication number
CN112885634A
CN112885634A CN201911337698.5A CN201911337698A CN112885634A CN 112885634 A CN112885634 A CN 112885634A CN 201911337698 A CN201911337698 A CN 201911337698A CN 112885634 A CN112885634 A CN 112885634A
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CN
China
Prior art keywords
light
keyboard
image decoder
light emitting
image data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911337698.5A
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Chinese (zh)
Inventor
黄俊铭
涂结盛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nuvoton Technology Corp
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Nuvoton Technology Corp
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Filing date
Publication date
Application filed by Nuvoton Technology Corp filed Critical Nuvoton Technology Corp
Publication of CN112885634A publication Critical patent/CN112885634A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Abstract

The invention provides a light-emitting keyboard which comprises an image decoder, a driving signal generator and a plurality of light-emitting elements. The image decoder receives one or more image data and generates one or more display data according to the decoded image data. The driving signal generator generates a plurality of driving signals according to the display data. The light-emitting elements respectively receive the driving signals and generate one or more display light effects according to the driving signals.

Description

Luminous keyboard
Technical Field
The invention relates to a luminous keyboard.
Background
In the prior art, the initial development stage of the luminous keyboard only has simple brightness and color change. However, with the development of technology and the trend of hot weather of power-on competition, the light-emitting keyboard is developed more and more rapidly, and the light effect to be provided is more and more gorgeous and complicated due to the originality of each keyboard manufacturer. In contrast, when engineers develop, in order to achieve the lamp effect to be provided, the required gorgeous lighting effect can be generated by calculating through a mathematical formula and realizing through a program. Moreover, once the lighting effect provided by the light-emitting keyboard needs to be changed, the engineer needs to spend a lot of time to adjust again, which is quite inconvenient in design.
Disclosure of Invention
The invention provides a luminous keyboard, which can simply achieve various special lamp effects to be expressed.
The light-emitting keyboard of the present invention includes an image decoder, a driving signal generator, and a plurality of light-emitting elements. The image decoder receives one or more image data and generates one or more display data according to the decoded image data. The driving signal generator is coupled to the image decoder and generates a plurality of driving signals according to the display data. The light emitting elements are coupled to the driving signal generator, respectively receive the driving signals, and generate one or more display lamp effects according to the driving signals.
In an embodiment of the invention, the light-emitting keyboard further includes a keyboard controller. Wherein the image decoder and the driving signal generator are provided in the keyboard controller. The keyboard controller is directly coupled to the light-emitting element and provides a driving signal to the light-emitting element.
In an embodiment of the invention, the light-emitting keyboard further includes a keyboard controller. The image decoder is arranged in the keyboard controller, and the driving signal generator is coupled outside the keyboard controller.
In an embodiment of the invention, the keyboard controller is further configured to detect an environmental parameter and control the light emitting device according to the environmental parameter.
In an embodiment of the invention, the environmental parameter includes an environmental temperature.
In an embodiment of the invention, the keyboard controller is further configured to control at least one of a light emitting brightness and a light emitting wavelength of each light emitting element.
In an embodiment of the invention, the light-emitting keyboard further includes a storage device. The storage device is coupled with the image decoder, stores the image data and provides the image data to the image decoder.
In an embodiment of the invention, the light-emitting keyboard further includes a communication interface. The communication interface is coupled to the image decoder for receiving the image data.
In an embodiment of the invention, the light-emitting keyboard further includes a key array. The key array has a plurality of keys. Wherein each key corresponds to one or more of the light emitting elements for configuration.
In an embodiment of the invention, each of the light emitting elements includes at least one light emitting diode.
Based on the above, the image decoder of the present invention can receive a plurality of image data, decode the received image data, and generate a driving signal to drive a plurality of light emitting elements in a light emitting keyboard. Therefore, the luminous keyboard does not need to be calculated through a complex mathematical formula and/or utilize a program design to generate a gorgeous light effect. The user only needs to transmit the image data of the picture to be displayed to the image decoder, so that the luminous keyboard can generate the required light effect, and the use convenience is improved.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic view illustrating a light-emitting keyboard according to an embodiment of the invention.
FIG. 2 is a schematic diagram of an embodiment of the invention.
FIG. 3 is a schematic diagram of another embodiment of the present invention.
Fig. 4 is a schematic view of a light-emitting keyboard according to another embodiment of the invention.
Fig. 5 is a schematic view illustrating a light-emitting keyboard according to another embodiment of the invention.
Fig. 6 is a schematic view illustrating a light-emitting keyboard according to another embodiment of the invention.
Fig. 7 shows a configuration relationship between the key and the light emitting device according to the embodiment of the invention.
Description of the symbols:
100. 200, 300, 400, 500, 600: luminous keyboard
110. 211, 311, 410, 611: image decoder
120. 212, 320, 420, 612: driving signal generator
210. 310, 510, 610: keyboard controller
430. 430': storage device
520: communication interface
530: environmental condition detector
620: key array
DRV 1-DRVN, DRVX: drive signal
And (4) DSP: displaying data
IMG, IMG': image data
KY 1: push-button
LD 1-LDN, LDX: light emitting element
Detailed Description
Referring to fig. 1, fig. 1 is a schematic view illustrating a light-emitting keyboard according to an embodiment of the invention. The light emitting keyboard 100 includes an image decoder 110, a driving signal generator 120, and light emitting elements LD1 to LDN. The image decoder 110 is configured to receive one or more image data IMGs and generate one or more display data DSPs according to the decoded image data IMGs. The driving signal generator 120 is coupled to the image decoder 110 for generating a plurality of driving signals DRV 1-DRVN according to the display data DSP generated by the image decoder 110, and providing the driving signals DRV 1-DRVN to drive the light emitting devices LD 1-LDN, so that the light emitting devices LD 1-LDN can generate one or more display lamp effects.
In the present embodiment, the image decoder 110 of the light-emitting keyboard 100 can receive a single image data IMG as a single image file, or has a plurality of image data IMGs capable of representing a plurality of image files. And performs a decoding operation on the image data IMG to generate corresponding display data DSP. The image file can be generated by a user on a computer or other related electronic devices, and the format of the image file is not limited.
For example, the image data IMG received by the image decoder 110 may be in Bitmap (BMP) format, Joint Photographic Experts Group (JPEG) format, or any other compressed or uncompressed image format, and is well known to those skilled in the art. The image decoder 110 may also receive a plurality of image data IMGs in a plurality of image Interchange formats (GIFs). The image decoder 110 may detect the format of the received image data IMG and generate the display data DSP by performing a decoding action. The driving signal generator 120 is used to convert the display data DSP into the driving signals DRV1 DRVN for driving the light emitting devices LD1 LDN, and drive the light emitting devices LD1 LDN to emit light.
In this embodiment, the display data DSP can be a digital signal with multiple bits, and each of the driving signals DRV1 DRVN can be an analog signal. The display data DSP may include digital gray-scale values corresponding to the luminance intensities of the light emitting devices LD1 LDN, and the driving signal generator 120 may generate the voltage values or the current values of the driving signals DRV1 DRVN corresponding to the light emitting devices LD1 LDN according to the digital gray-scale values of the luminance intensities of the light emitting devices LD1 LDN.
In this embodiment, the voltage values of the driving signals DRV1 to DRVN can be set according to the specifications of the light emitting elements LD1 to LDN, without fixed restrictions.
Incidentally, when the image data IMG is in the GIF format, for example, the image decoder 110 may receive a plurality of image data IMGs in time series. The image decoder 110 decodes the image data IMG and sequentially generates a plurality of display data DSPs. The driving signal generator 120 sequentially generates driving signals DRV 1-DRVN according to the received display data DSP, and drives the light emitting devices LD 1-LDN, respectively. By the above, the light emitting elements LD 1-LDN can generate a plurality of different display light effects in time sequence, and the display light effects can have animation display effects.
According to the above description, the light-emitting keyboard 100 of the embodiment of the present invention does not need to pass through complicated calculation and does not need to provide a high-level processor. The display lamp effect generation operation can be completed only by performing a decoding operation on the received image data IMG through the image decoder 110. Furthermore, when the user needs to set or change the display light effect, the user only needs to input the required display light effect to the light-emitting keyboard 100 by means of the image file, so that the light-emitting keyboard 100 can generate the required display light effect. Not only can the circuit cost of the light-emitting keyboard 100 be effectively saved, but also the convenience of the light-emitting keyboard 100 in use can be effectively improved.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating an embodiment of the invention. In fig. 2, the light-emitting keyboard 200 includes a keyboard controller 210 and light-emitting elements LD1 to LDN. The keyboard controller 210 has an image decoder 211 and a driving signal generator 212. The image decoder 211 may receive the image data IMG and generate the display data DSP according to the decoded image data IMG. The driving signal generator 212 receives the display data DSP and generates the driving signals DRV 1-DRVN according to the display data DSP. In this embodiment, the keyboard controller 210 may be implemented with a single integrated circuit. When the electrical specifications of the driving signals DRV1 DRVN required by the light emitting devices LD 1-LDN are in accordance with the electrical specifications of the output signals that the keyboard controller 210 can provide, the keyboard controller 210 can directly provide the driving signals DRV 1-DRVN through the output voltage points thereof to drive the light emitting devices LD 1-LDN, respectively. The output voltage points for providing the driving signals DRV 1-DRVN are, for example, from a General-purpose input/output (GPIO) port of the keyboard controller 210.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating another embodiment of the present invention. In fig. 3, the light emitting keyboard 300 includes a keyboard controller 310, a driving signal generator 320, and light emitting elements LD1 to LDN. In the present embodiment, the image decoder 311 is disposed in the keyboard controller 310, and the driving signal generator 320 is disposed outside the keyboard controller 310. In the present embodiment, if the electrical specifications of the driving signals DRV1 to DRVN required to be received by the light emitting elements LD1 to LDN are not provided by the keyboard controller 310, the driving signal generator 320 provided externally can be used to generate the driving signals DRV1 to DRVN.
In the embodiments of fig. 2 and fig. 3, the keyboard controllers 210 and 310 may be processors based on computing capability, or Hardware circuits that are designed by Hardware Description Language (HDL) or any other digital Circuit design known to those skilled in the art, and implemented by Field Programmable Gate Array (FPGA), Complex Programmable Logic Device (CPLD) or Application-specific Integrated Circuit (ASIC), without limitation.
Referring to fig. 4, fig. 4 is a schematic view illustrating a light-emitting keyboard according to another embodiment of the invention. The light emitting keyboard 400 includes an image decoder 410, a driving signal generator 420, a storage device 430, and a light emitting element LDX. The storage device 430 is coupled to the image decoder 410. The storage device 430 is used for storing one or more image data IMGs and providing the image data IMGs to the image decoder 410. The image decoder 410 decodes the image data IMG to generate the display data DSP, and the driving signal generator 420 generates the driving signal DRVX according to the display data DSP and drives the light emitting device LDX by the driving signal DRVX.
In this embodiment, the storage device 430 may be built in the light-emitting keyboard 400, or the light-emitting keyboard 400 may receive the image data IMG 'through the external storage device 430'. Memory device 430 may be any type of memory chip or memory circuit. The storage device 430 may be embedded in a keyboard controller of the light-emitting keyboard 400 together with the image decoder 410, or the storage device 430 may be provided outside the keyboard controller. On the other hand, the external storage device 430' may be electrically connected to the image decoder 410 through a connection interface (e.g., a usb interface) disposed on the light-emitting keyboard 400. The storage device 430' may be a hard drive, a flash drive, or other form of data storage medium known to those skilled in the art.
Next, referring to fig. 5, fig. 5 is a schematic diagram illustrating a light-emitting keyboard according to another embodiment of the invention. The light emitting keyboard 500 includes a keyboard controller 510, a communication interface 520, an environmental status detector 530, and a light emitting element LDX. The keyboard controller 510 includes an image decoder 511 and a driving signal generator 512. In the present embodiment, the communication interface 520 is coupled to the image decoder 511 in the keyboard controller 510. The image data IMG may be transmitted to the image decoder 511 through the communication interface 520. The image decoder 511 decodes the image data IMG to generate the display data DSP, and the driving signal generator 512 generates the driving signal DRVX according to the display data DSP, and drives the light emitting device LDX by the driving signal DRVX.
The communication interface 520 may be wired and/or wireless, and is well known to those skilled in the art. Through the communication interface 520, the user can transmit one or more image data IMG to the keyboard controller 510, and the light emitting device LDX can generate corresponding display light effect.
Further, the environmental status detector 530 is coupled to the keyboard controller 510. The environmental state detector 530 is used to detect an environmental parameter. The keyboard controller 510 can adjust the driving signal DRVX according to the environmental parameter detected by the environmental status detector 530, and thereby adjust at least one of the light emitting brightness and the light emitting wavelength provided by the light emitting device LDX. The environmental parameter is, for example, an environmental temperature, for example, when the environmental parameter detected by the environmental status detector 530 indicates that the current environmental temperature is relatively low, the keyboard controller 510 may drive the light emitting device LDX to provide a light emitting wavelength with a high color temperature and/or increase the light emitting brightness of the light emitting device LDX to make the user feel warm.
Referring to fig. 6, fig. 6 is a schematic view illustrating a light-emitting keyboard according to another embodiment of the invention. The light-emitting keyboard 600 includes a keyboard controller 610, a key array 620, and a light-emitting element LD 1. The keyboard controller 610 includes an image decoder 611 and a driving signal generator 612. The key array 620 includes a plurality of keys KY 1. In the present embodiment, the keyboard controller 610 may drive the key array 620 to perform a scanning operation and receive input information (e.g., keyboard scan codes) generated by the key array 620. In addition, the keyboard controller 610 may provide a driving signal DRVX to drive the light emitting element LD 1. In this embodiment, the light emitting device LD1 may be disposed to overlap with the key KY 1. And each key KY1 may be disposed to overlap one or more light emitting elements LD 1.
Please refer to fig. 7, which illustrates a configuration relationship between the keys and the light emitting devices according to the embodiment of the present invention. The single key KY1 may be disposed corresponding to one or more of the light emitting elements LD1 through LDN. The light emitting elements LD1 to LDN may be light emitting diodes. In the present embodiment, the light emitting elements LD1 to LDN can generate light beams having different wavelengths, respectively. By adjusting the driving signals provided to the light emitting elements LD 1-LDN, the embodiment of the invention can adjust the color and/or brightness of the display light effect provided by the light emitting elements LD 1-LDN, and provide the required display light effect.
In summary, the light-emitting keyboard of the present invention receives the image data through the image decoder, and decodes the image data to generate the driving signal for driving the light-emitting element. The luminous keyboard of the invention does not need to generate gorgeous lighting effect through mathematical formula calculation and program realization for achieving the lighting effect (lamp effect), thereby being time-consuming in open days and improving the convenience of the luminous keyboard in use.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. An illuminated keyboard, comprising:
an image decoder for receiving at least one image data and generating at least one display data according to the decoded at least one image data;
a driving signal generator coupled to the image decoder for generating a plurality of driving signals according to at least one display data; and
and the plurality of light-emitting elements are coupled with the driving signal generator, respectively receive the plurality of driving signals and generate at least one display lamp effect according to the plurality of driving signals.
2. The illuminated keyboard according to claim 1, further comprising:
a keyboard controller, wherein the image decoder and the driving signal generator are disposed in the keyboard controller, the keyboard controller is directly coupled to the plurality of light emitting elements and provides the plurality of driving signals to the plurality of light emitting elements.
3. The illuminated keyboard according to claim 1, further comprising:
a keyboard controller, wherein the image decoder is disposed in the keyboard controller, and the driving signal generator is coupled to the outside of the keyboard controller.
4. The light-emitting keyboard of claim 3, wherein the keyboard controller is further configured to detect an environmental parameter and control the plurality of light-emitting elements according to the environmental parameter.
5. The illuminated keyboard of claim 4, wherein the environmental parameter comprises an ambient temperature.
6. The light-emitting keyboard of claim 3, wherein the keyboard controller is further configured to control at least one of a light-emitting brightness and a light-emitting wavelength of each of the light-emitting elements.
7. The illuminated keyboard according to claim 1, further comprising:
and the storage device is coupled with the image decoder, stores at least one image data and provides at least one image data to the image decoder.
8. The illuminated keyboard according to claim 7, further comprising:
a communication interface coupled to the image decoder for receiving at least one image data.
9. The illuminated keyboard according to claim 7, further comprising:
and the key array is provided with a plurality of keys, wherein each key corresponds to one or more of the light-emitting elements for configuration.
10. The illuminated keyboard according to claim 1, wherein each of the light emitting elements comprises at least one light emitting diode.
CN201911337698.5A 2019-11-29 2019-12-23 Luminous keyboard Pending CN112885634A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW108143529A TWI700717B (en) 2019-11-29 2019-11-29 Lighting keyboard
TW108143529 2019-11-29

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