TW201512904A - Photosensitive keyboard and method of controlling illumination of the photosensitive keyboard - Google Patents

Abstract

A photosensitive keyboard and a method of controlling illumination of the photosensitive keyboard are disclosed. A driving concordance table consisting of a plurality of driving codes is saved in advance. Each driving code is corresponded to a trigger signal, and each driving code is corresponded to a driving signal that defines an illumination mode. A photosensitive detection unit detects surrounding light parameters to generate the trigger signal and then read the driving code corresponding to the trigger signal from the driving concordance table. A control unit generates the driving signal according to the driving code to drive the illumination element to generate light beam, and the control unit controls each illumination element to respectively execute the illumination mode corresponding to the driving signal, so as to present blinking and block light variation effects via synchronous or asynchronous light variation.

Description

Photosensitive keyboard and method for controlling illumination by the photosensitive keyboard

The invention relates to a keyboard, in particular to a photosensitive keyboard and a method for controlling the illumination by the photosensitive keyboard.

At the same time of the rapid development of personal computers, the keyboards equipped with basic output are becoming more and more new. In order to meet different consumer demands, there are various keyboards with luminous effects available on the market for users to use in environments with insufficient brightness. It is clear that the position and character symbol of each button can be cleared, and the error input button will not cause the instruction input error.

However, in addition to providing illumination, an illuminated keyboard having a brilliance change effect is proposed, such as the Chinese Patent Publication No. I384515 (that is, the same applicant as the present invention), which discloses a keyboard control method for generating brilliance changes and the implementation of the method. The illuminating keyboard stores a driving signal table composed of a plurality of backlight driving signals, and each backlight driving signal is associated with at least one keying signal, so that when the keyboard is pressed to generate the input signal, according to the input signal Outputting a corresponding backlight driving signal to drive a light emitting component group, so that when the user presses each key, the input signal and the driving signal table determine the light emitting brightness of each light emitting component group in the backlight unit, thereby providing the keyboard with Variable backlight color variations.

In addition, as disclosed in Chinese Patent Application No. 100100770 (which is the same as the applicant of the present invention), a control method for generating brightness of an illuminated keyboard is disclosed, different light-emitting areas are defined on the keyboard, and a plurality of corresponding light-emitting areas are respectively set. For the different lighting time, when detecting that the keyboard is not pressed, the control unit outputs a driving signal to the corresponding lighting area to generate brightness asynchronously, so that the keyboard can be asynchronous in each lighting area. Produces brightness to give a visual sense of a flashing effect.

In summary, although the illuminated keyboard has been developed to provide a stage of different color light, the initial display of the light-emitting keyboard is set by pressing the button of the keyboard, and the operation mode is not versatile, and there is still further improvement. Space.

The main object of the present invention is to change the color change of the illumination of the keyboard according to the ambient light parameters of the ambient light.

In order to achieve the above object, the present invention provides a method for controlling illumination by a photosensitive keyboard, comprising: a setting step, a detecting step and a driving step, the setting step is to provide a lighting space, a control unit, a plurality and the a light-emitting component electrically connected to the control unit and a keyboard of the light-sensing detecting unit electrically connected to the control unit, wherein a driving correspondence table composed of a plurality of driving codes is pre-stored in the keyboard, and each driving code and a trigger signal are Corresponding relationship, and corresponding to the driving code corresponding to a driving signal, the driving signal defines at least two driving regions having a lighting mode, and detecting the ambient light parameter by a photosensitive detecting unit to generate the trigger signal, wherein the driving step is Reading a driving code corresponding to the trigger signal from the driving correspondence table to transmit the driving code to the control unit, and the control unit generates a driving signal according to the driving code to drive the light emitting component to generate light toward the lighting space. And controlling each of the light emitting elements to perform a light emitting mode corresponding to the driving signal.

In order to achieve the above object, the present invention further provides a photosensitive keyboard, comprising: a housing having a light-emitting space, a button group mounted in the light-emitting space, a photosensitive detecting unit, a circuit board, and at least one light-emitting element The photodetecting unit is mounted on the housing to detect ambient light parameters to generate at least one trigger signal. The circuit board is disposed under the button group and electrically connected to the photo detecting unit. a control unit electrically connected to the photosensitive detecting unit and a memory unit electrically connected to the control unit, wherein the memory unit stores a driving correspondence table composed of a plurality of driving codes, and each of the driving codes and each a driving signal corresponding to a driving signal, the driving code corresponding to a driving signal, the driving signal defines a lighting mode, the control unit generates a driving signal according to the driving code, and the lighting component is disposed on the button group and the circuit board And electrically connected to the control unit, the light emitting element generates light according to the driving signal toward the light emitting space, and each of the light emitting elements is driven according to the driving Number should perform the light emission mode driving signal.

In one embodiment, the illumination mode is a synchronous illumination mode in which the drive code is transmitted to the control unit during a same illumination time to cause the plurality of illumination elements to simultaneously generate brightness.

In one embodiment, the illumination mode is a non-synchronous illumination mode in which the differential illumination time is set and the drive code is transmitted in a sequence to cause the plurality of illumination elements to generate luminance asynchronously.

In an embodiment, the driving correspondence table further presets a standby driving code, so that the photosensitive detecting unit detects that the ambient light parameter is unchanged, and generates a standby trigger signal to read the corresponding corresponding from the driving correspondence table. The standby driving code, the micro control unit generates a standby signal according to the standby driving code to control the lighting element to perform a standby mode.

In one embodiment, the illuminating element comprises a plurality of illuminating elements respectively providing color lights of different colors, and the different driving signals determine the color of the illuminating elements.

In one embodiment, the light-emitting element includes a plurality of light-emitting elements that provide color light of a single color, and the different drive signals determine that the light-emitting elements provide different brightness.

In one embodiment, the sensitometric unit is a photosensitive coupling element, a complementary metal oxide semiconductor active pixel sensor, a color sensor, or an ambient light source detector.

In an embodiment, the illuminating color of the illuminating element comprises at least two colors selected from the group consisting of red, green, blue, and white.

Through the above technical solutions, the beneficial effects that the present invention can achieve compared to the prior art are:

1. The photosensitive keyboard of the present invention and a method for controlling the same, wherein the photosensitive keyboard can generate respective brightness or color according to ambient light parameters;

2. The photosensitive keyboard can exhibit the effect of flickering and block dimming according to the illuminating mode of the synchronous or non-synchronized brilliance.

10‧‧‧shell

20‧‧‧ button group

30‧‧‧Photosensitive detection unit

40‧‧‧ boards

41‧‧‧ memory unit

42‧‧‧Control unit

50‧‧‧Lighting module

51‧‧‧Lighting elements

52‧‧‧ drive

S1~S4‧‧‧ steps

1 is a schematic perspective view of a photosensitive keyboard of the present invention.

2 is a schematic exploded view of the photosensitive keyboard of the present invention.

FIG. 3 is a schematic structural diagram of a photosensitive keyboard and a method for controlling illumination of the photosensitive keyboard according to the present invention.

4 is a schematic flow chart of a first embodiment of a method for controlling illumination by a photosensitive keyboard of the present invention.

FIG. 5 is a schematic flow chart of a second embodiment of a method for controlling illumination by a photosensitive keyboard according to the present invention.

The detailed description and technical contents of the present invention will now be described as follows:

Please refer to FIG. 1 to FIG. 3 , which are schematic diagrams showing the three-dimensional structure of the photosensitive keyboard of the present invention, the exploded structure of the photosensitive keyboard of the present invention, and the schematic diagram of the photosensitive keyboard of the present invention and the method for controlling the illumination of the photosensitive keyboard, as shown in the figure. The photosensitive keyboard of the present invention comprises a housing 10, a button group 20, a photosensitive detecting unit 30, a circuit board 40, and a light emitting module 50 including at least one light emitting element 51. The housing 10 has a light emitting The light-sensing detecting unit 30 is mounted on the housing 10, and the photosensitive detecting unit 30 is a photosensitive coupling element (charge-coupled). Device, CCD), complementary CMOS active pixel sensor, color sensor or Ambient light sensor (ALS) to detect the environment The at least one trigger signal is generated by the ambient light parameter in the light. The circuit board 40 is disposed under the button group 20 and electrically connected to the photosensitive detecting unit 30, and the circuit board 40 includes a memory unit 41 and a control unit 42 electrically connected to the memory unit 41, the memory unit 41 stores a driving correspondence table formed by a plurality of driving codes, and each of the driving codes is associated with each of the trigger signals, and the driving code corresponds to A driving signal is defined, and at least two driving area illumination modes are defined according to the driving code signals. The control unit 42 generates a driving signal according to the driving code, and the lighting module 50 is configurable to the button group 20 and the driving signal. Between the circuit boards 40, the light-emitting elements 51 of the light-emitting module 50 are electrically connected to the control unit 42. The light-emitting elements 51 generate light according to the driving signals toward the light-emitting space, and each of the light-emitting elements 51 is driven according to the driving. The signal performs a corresponding illumination mode, and the illumination color of the illumination element 51 includes at least two colors selected from red, green, blue, or white to provide a function of mixing light to change the color of the light.

4 is a schematic flow chart of a first embodiment of a photosensitive keyboard and a method for controlling illumination of the photosensitive keyboard according to the present invention. As shown in the figure, the method for controlling illumination of the photosensitive keyboard of the present invention comprises a setting step S1 and a detection. Step S2 and a driving step S3, in the setting step S1, a keyboard having a lighting space, a control unit 42, and a plurality of light-emitting elements 51 electrically connected to the control unit 42 is provided, and a photosensitive keyboard is pre-stored in the photosensitive keyboard. a driving correspondence table formed by the plurality of driving codes, and each of the driving codes is associated with a triggering signal, wherein the driving code has a lighting mode defined according to the driving signal numbers, and then, in the detecting step S2, A photosensitive detecting unit 30 detects ambient light parameters (such as color temperature, color frequency, etc.) to generate the trigger signal. Finally, in the driving step S3, the driving corresponding to the trigger signal is read from the driving correspondence table. a code for transmitting a corresponding driving code to the control unit 42. The control unit 42 generates the driving signal according to the driving code to cause the light emitting element 51 to face the light emitting space. Green light, and controls each of the light emitting element 51 are to be driven to perform the light emission mode region.

The driving correspondence table is composed of a plurality of different driving codes, and each driving code is associated with a trigger signal, and a complex lighting mode is defined according to the driving codes, and each lighting mode corresponds to a driving signal. The driving signal is a digital signal, and the encoding includes a brightness information of each of the light emitting elements of the light emitting element 51. The driving signal determines the light emitting brightness of the light emitting element, if each of the light emitting elements includes three different light emitting elements (red, For example, green and blue, the driving signal table can be illustrated as follows:

 

Table 1: Example of driver signal table

The above table 1 is a schematic table of the driving signal table of the present invention, which is used for illustrative purposes only. In the implementation, the driving signal table is adjusted according to the number of ambient light parameters corresponding to the trigger signal (such as T00 to T17), and R, G, B respectively represent the brightness information of the red, green, and blue light-emitting component groups, and the brightness information of different serial numbers can be driven by the driver 52 to provide different brightness corresponding to each of the light-emitting elements 51, that is, the driving code R1G1B1 and the The driver code R2G2B2 represents the different brightness that can be driven by the red, green and blue light-emitting elements. The ambient light parameter in Table 1 takes the color temperature as an example. When the photosensitive detecting unit 30 detects the ambient light parameter T0 as the color temperature 2000K, the driving code T00 corresponding to each of the light-emitting elements 51 is R1G1B1 for each of the light-emitting elements. The driver 52 of the 51 (shown in FIG. 3) drives each of the light-emitting elements 51 to provide color light that is mixed with the light of the drive code T00, that is, each of the light-emitting elements 51 is provided with a single color.

 

Table 2: Example of the drive signal table [0025] Table 2 above is a schematic table of the drive signal table of the present invention, which is for illustrative purposes only. In the implementation, the drive signal table is based on the number of the light-emitting elements 51 (such as L0 to L7). And adjusting the number of ambient light parameters (such as T00 to T17) corresponding to the trigger signal. The ambient light parameter in Table 2 takes the color temperature as an example. When the photosensitive detecting unit 30 detects the ambient light parameter T0 as the color temperature 4000K, the driving code of the light emitting element L0 is R1G1B1, and the driving code of the light emitting element L1 is R1G1B1, Any one of the driving codes is mainly encoded by Rn, Gn, Bn (n represents the corresponding serial number), and is further divided into Rn, Gn, Bn and the like by the control unit 42 through signal modulation. The signals are provided to the drivers 52 of the light-emitting elements 51, R, G, and B respectively represent the brightness information of the red, green, and blue light-emitting element groups, and the brightness information of different serial numbers can be driven through the driver 52 to drive the corresponding light-emitting elements. 51 provides different brightness, that is, the driving code R1G1B1 and the driving code R2G2B2 represent different brightnesses corresponding to each of the red, green and blue light-emitting elements, and the light provided by each of the light-emitting elements 51 can be mixed. Color lights of different colors are provided, so that the different driving signals drive the light-emitting elements 51 to provide color lights of different colors. The light-emitting element 51 can also provide a single color, and the brightness of the light-emitting element 51 can be changed by the different driving signals, that is, the driving codes generated by each ambient light parameter are different, so that the control unit 42 is different. The keyboard can be controlled to generate variable brightness and color variations according to the driving codes.
In addition, as shown in the foregoing Table 2, the driving signals corresponding to the driving codes in the second table may define at least one lighting mode for the illuminating component 51 to perform the illuminating corresponding to the driving signals. For example, when the ambient light parameter T0 is detected as a color temperature of 4000K, the driving code of the light emitting element L0 is R1G1B1, the driving code of the light emitting element L1 is R2G2B2, and the driving code of the light emitting element L6 is R7G7B7. The driving code of the light-emitting element L7 is R9G9B9, the driving code R1G1B1 and the driving code R2G2B2 are set to the first lighting mode, and the driving code R7G7B7 and the driving code R9G9B9 are the second lighting mode, the first lighting mode and the first The second illumination mode is configured to transmit the corresponding drive code to the control unit 42 during a same illumination time period, so that the control unit 42 controls the illumination elements L0, L1 corresponding to the first illumination mode and the corresponding second illumination mode. The light-emitting elements L6 and L7 simultaneously generate brightness. Alternatively, the first illumination mode and the second illumination mode are set to a different illumination time, and the drive codes R1G1B1 R R9G9B9 are sequentially transmitted to the control unit 42 for the control unit 42 to control the corresponding first illumination mode. The light-emitting elements L0 and L1 and the non-synchronous light-emitting modes of the light-emitting elements L6 and L7 corresponding to the second light-emitting mode asynchronously generate brightness, so that the keyboard generates a light-emitting mode such as flickering and block dimming.
[0027] In addition, referring to FIG. 5, a schematic diagram of a second embodiment of the photosensitive keyboard of the present invention and the method for controlling the illumination of the photosensitive keyboard is shown in the figure: the detecting step S2 and the driving step S3 The method may further include a determining step S21, that is, when another ambient light parameter is detected next time, for determining whether the previous ambient light parameter and the other ambient light parameter value are changed, and if so, according to the changed ambient light parameter. The value is performed in the driving step S3. If not, the process proceeds to the standby step S4. The standby step S4 pre-sets a standby driving code in advance for the ambient light detected by the photosensitive detecting unit 30. When the parameter is the same as the previous ambient light parameter, a standby trigger signal is generated, and the corresponding standby driving code is read from the driving correspondence table, and the micro control unit 42 generates a standby signal according to the standby driving code to control the standby signal. The light emitting element 51 performs a standby mode.
[0028] In summary, the photosensitive keyboard of the present invention and the method for controlling the illumination of the photosensitive keyboard mainly store a driving correspondence table composed of a plurality of driving codes in advance, and each driving code is associated with a trigger signal, and Defining at least two driving regions according to the driving codes, the driving code corresponds to a driving signal, and the driving signal defines a lighting mode. When the photosensitive detecting unit detects the ambient light parameter to generate the trigger signal, the driving signal can be corresponding to the driving signal. The table reads a driving code corresponding to the trigger signal, so that the control unit drives the light emitting element to generate light toward the light emitting space to change respective brightness or color of the light emitting element, and control each of the light emitting elements to perform respectively The illumination mode corresponding to the driving area is such that it exhibits a flickering, block dimming effect via a synchronized or non-synchronized brilliance change.
The present invention has been described in detail above, but the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Equivalent changes and modifications shall remain within the scope of the patents of the present invention.

S1, S2, S21, S3, S4‧‧ steps

Claims (14)

A method for controlling illumination by a photosensitive keyboard, comprising:
Providing a keyboard having a light-emitting space, a control unit, and a plurality of light-emitting elements electrically connected to the control unit, wherein the keyboard is pre-stored with a drive correspondence table composed of a plurality of drive codes, and each drive code and a trigger signal Corresponding relationship, and the driving code corresponds to a driving signal, and the driving signal defines a lighting mode;

The trigger signal is generated by detecting a ambient light parameter by a photosensitive detecting unit;

Reading a driving code corresponding to the trigger signal from the driving correspondence table to transmit the driving code to the control unit, and the control unit generates a corresponding driving signal according to the driving code to drive the light emitting component toward the lighting space. Light is generated and the light emitting element is controlled to perform a light emitting mode corresponding to the driving signal.
The method of controlling the illumination by the photosensitive keyboard according to claim 1, wherein the illumination mode is a synchronous illumination mode in which the driving code is transmitted to the control unit during a same illumination time, and the plurality of illumination elements are synchronized to generate a brightness. The method of controlling the illumination by the photosensitive keyboard according to claim 1, wherein the illumination mode is a non-synchronous illumination mode in which the plurality of illumination elements are set to transmit the drive code in a sequence, so that the plurality of illumination elements generate a luminance asynchronously. The method of controlling the illumination by the sensible keyboard according to the first item, wherein the driving correspondence table further presets a standby driving code, so that the photographic detecting unit detects that the ambient light parameter is unchanged, and generates a standby trigger signal. And reading the corresponding standby driving code from the driving correspondence table, and the micro control unit generates a standby signal according to the standby driving code to control the lighting element to execute a standby mode. The method of claim 1, wherein the illuminating element comprises a plurality of illuminating elements respectively providing color lights of different colors, and the different driving signals determine color colors of the illuminating elements. The method of controlling light emission by the photosensitive keyboard of claim 1, wherein the light-emitting element comprises a plurality of light-emitting elements that provide color light of a single color, and the different driving signals determine that the light-emitting elements provide different brightness. The method of claim 1, wherein the photosensitive detecting unit is a photosensitive coupling element, a complementary metal oxide semiconductor active pixel sensor, a color sensor or an ambient light source detector. A photosensitive keyboard comprising:
a housing having a light-emitting space;

a button group installed in the light-emitting space;

a photosensitive detecting unit is disposed on the housing to detect ambient light parameters to generate at least one trigger signal;

a circuit board is disposed under the button group and electrically connected to the photosensitive detecting unit, the circuit board includes a control unit electrically connected to the photosensitive detecting unit and a memory electrically connected to the control unit a unit, the memory unit stores a driving correspondence table composed of a plurality of driving codes, and each of the driving codes is associated with each of the triggering signals, and the driving code corresponds to a driving signal, and the driving signal defines a lighting mode; as well as

The at least one illuminating component is disposed in the housing and electrically connected to the control unit. The illuminating component generates light according to the driving signal to the illuminating space, and each of the illuminating components performs a corresponding driving signal according to the driving signal. Lighting mode.
The sensible keyboard of claim 8, wherein the illuminating mode is an illuminating mode in which the driving code is transmitted to the control unit during a same illuminating time, and the plurality of illuminating elements are synchronized to generate brightness. The responsive keyboard of claim 8, wherein the illuminating mode is to set a different illuminating time and output the driving code to the control unit in a wheel sequence, so that the plurality of illuminating elements perform non-synchronous brightness generation according to the driving signal. Lighting mode. The sensible keyboard of claim 8, wherein the illuminating element comprises a plurality of illuminating elements respectively providing color lights of different colors, and the different driving signals determine color colors of the illuminating elements. The sensible keyboard of claim 8, wherein the illuminating element comprises a plurality of illuminating elements that provide color light of a single color, and the different driving signals determine that the illuminating elements provide different brightness. The photosensitive keyboard of claim 8, wherein the photosensitive unit is a photosensitive coupling element, a complementary metal oxide semiconductor active pixel sensor, a color sensor or an ambient light source detector. The photosensitive keyboard of claim 8, wherein the illuminating color of the illuminating element comprises at least two colors selected from the group consisting of red, green, blue, and white.