WO2020056934A1

WO2020056934A1 - Control circuit, temperature controller, device, and method and apparatus for adjusting display color

Info

Publication number: WO2020056934A1
Application number: PCT/CN2018/120195
Authority: WO
Inventors: 李涛; 钟金扬; 玉俊威
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-09-20
Filing date: 2018-12-11
Publication date: 2020-03-26
Also published as: CN109166509A

Abstract

A control circuit, a temperature controller, a device, and a method and apparatus for adjusting display color relate to the field of control. The control circuit comprises: a temperature obtaining unit (110) configured to obtain a current ambient temperature value (510); a three-primary-color value determining unit (120) configured to determine a first primary color value, a second primary color value, and a third primary color value of a display panel according to the current ambient temperature value (520); and a voltage control unit (130) configured to control the voltage of a first light source of the display panel according to a mapping relationship between the first primary color value and the first light source voltage, the voltage of a second light source of the display panel according to a mapping relationship between the second primary color value and the second light source voltage, and the voltage of a third light source of the display panel according to a mapping relationship between the third primary color value and the third light source voltage (530). The three-primary-color value is determined according to the current ambient temperature value, and the light source voltage of the display panel is controlled according to the voltage relation between the three primary color value and each light source, so that the display panel displays different colors according to different ambient temperature, thereby improving the user experience.

Description

Control circuit, temperature controller, equipment and method and device for adjusting display color

This application is based on an application with a CN application number of 201811099372.9 and an application date of September 20, 2018, and claims its priority. The disclosure of the CN application is incorporated herein as a whole.

Technical field

The present disclosure relates to the field of control, and in particular, to a control circuit, a temperature controller, a device, and a method and device for adjusting display colors.

Background technique

There are many types of thermostats on the market. Most of them simply collect the temperature and display the temperature value directly on the LCD. The user needs to walk near the thermostat to know the current temperature.

Summary of the Invention

According to an aspect of the present disclosure, a control circuit is provided, including: a temperature obtaining unit configured to obtain a current ambient temperature value; a three primary color value determining unit configured to determine a first primary color value of a display panel according to the current ambient temperature value, A second primary color value and a third primary color value; and a voltage control unit configured to control the voltage of the first light source of the display panel according to the mapping relationship between the first primary color value and the first light source voltage, and according to the second primary color value and the second light source voltage The mapping relationship of the voltage of the second light source of the display panel is controlled, and the voltage of the third light source of the display panel is controlled according to the mapping relationship between the third primary color value and the third light source voltage.

In some embodiments, the voltage control unit includes: a pulse width modulation PWM wave determination circuit configured to determine a first PWM wave duty cycle according to a first primary color value, and output a first PWM having a first PWM wave duty cycle A second PWM wave duty cycle is determined according to the second primary color value, and a second PWM wave having a second PWM wave duty ratio is output, a third PWM wave duty ratio is determined according to the third primary color value, and A third PWM wave with a three PWM wave duty cycle; a first light source control circuit configured to receive the first PWM wave and output a first light source voltage corresponding to the first PWM wave duty cycle, wherein the first light source voltage is A first light source applied to the display panel; a second light source control circuit configured to receive a second PWM wave and output a second light source voltage corresponding to the second PWM wave duty cycle, wherein the second light source voltage is applied to the display panel A second light source; and a third light source control circuit configured to receive a third PWM wave and output a third light source voltage corresponding to the duty ratio of the third PWM wave, wherein the third light source voltage is applied to the third light source of the display panel .

In some embodiments, the PWM wave determination circuit is further configured to determine a first PWM wave output frequency according to a first primary color value, and output a first PWM wave having a first PWM wave output frequency, and determine a second A PWM wave output frequency and a second PWM wave having a second PWM wave output frequency, determining a third PWM wave output frequency according to a third primary color value, and outputting a third PWM wave having a third PWM wave output frequency; The light source control circuit is further configured to output a first light source voltage corresponding to the first PWM wave output frequency; the second light source control circuit is also configured to output a second light source voltage corresponding to the second PWM wave output frequency; a third light source control The circuit is also configured to output a third light source voltage corresponding to a third PWM wave output frequency.

In some embodiments, each of the first light source control circuit, the second light source control circuit, and the third light source control circuit includes: a PWM wave receiving end; a first output end; a second output end; a switching device, The control terminal of the switching device is connected to the PWM wave receiving terminal, the first terminal of the switching device is connected to the first output terminal; and the capacitor, the first terminal of the capacitor is connected to the first terminal of the switching device, and the second terminal of the capacitor is connected to the second The output terminal is connected, and the second terminal of the capacitor is connected to the power supply voltage terminal.

In some embodiments, each of the first light source control circuit, the second light source control circuit, and the third light source control circuit further includes: a first resistor disposed at a control end of the switching device and a PWM wave receiving end Between; and a second resistor disposed between the second output terminal and the power supply voltage terminal.

In some embodiments, the PWM wave receiving end of the first light source control circuit is connected to a terminal that outputs the first PWM wave in the PWM wave determination circuit, and the first output end of the first light source control circuit is connected to the first of the first light source of the display panel. Pin connection; the second output end of the first light source control circuit is connected to the second pin of the first light source of the display panel; the PWM wave receiving end of the second light source control circuit and the terminal that outputs the second PWM wave in the PWM wave determination circuit Connected, the first output end of the second light source control circuit is connected to the first pin of the second light source of the display panel; the second output end of the second light source control circuit is connected to the second pin of the second light source of the display panel; third The PWM wave receiving end of the light source control circuit is connected to the terminal that outputs the third PWM wave in the PWM wave determination circuit. The first output end of the third light source control circuit is connected to the first pin of the third light source of the display panel. The third light source control The second output end of the circuit is connected to the second pin of the third light source of the display panel.

In some embodiments, the switching device is a transistor; the control terminal of the transistor is a base and is connected to the PWM wave receiving terminal; the first terminal of the transistor is connected to the first output terminal; and the second terminal of the transistor is grounded.

According to another aspect of the present disclosure, a temperature controller is further provided, including a temperature sensor, a display panel, and the above-mentioned control circuit; wherein the temperature sensor is configured to detect a current ambient temperature value; and the display panel is configured to output according to the control circuit The light source voltage is displayed in different colors.

According to another aspect of the present disclosure, an electric device is also provided, including the above-mentioned control circuit or temperature controller.

According to another aspect of the present disclosure, a method for adjusting display color with temperature conversion is also provided, which includes: obtaining a current ambient temperature value; and determining a first primary color value, a second primary color value, and a third primary color value of the display panel according to the current environmental temperature value. Primary color value; controlling the voltage of the first light source of the display panel according to the mapping relationship between the first primary color value and the voltage of the first light source; controlling the voltage of the second light source of the display panel according to the mapping relationship between the second primary color value and the second light source voltage; The mapping relationship between the primary color value and the voltage of the third light source controls the voltage of the third light source of the display panel.

In some embodiments, the method further includes: determining a first PWM wave duty cycle according to the first primary color value, and outputting a first PWM wave having the first PWM wave duty cycle; The first light source voltage corresponding to the duty cycle of the PWM wave, wherein the first light source voltage is applied to the first light source of the display panel; the second duty cycle of the PWM wave is determined according to the second primary color value, and the second PWM wave duty is output. The second PWM wave is output according to the second PWM wave, and the second light source voltage corresponding to the duty ratio of the second PWM wave is output, wherein the second light source voltage is applied to the second light source of the display panel; Three PWM wave duty cycles and outputting a third PWM wave having a third PWM wave duty cycle, and outputting a third light source voltage corresponding to the third PWM wave duty cycle according to the third PWM wave, wherein the third light source voltage A third light source is applied to the display panel.

In some embodiments, the method further includes: determining a first PWM output frequency according to the first primary color value, and outputting a first PWM wave having the first PWM output frequency; and outputting the first PWM wave according to the first PWM wave and the first PWM wave output frequency A corresponding first light source voltage; determining a second PWM output frequency according to a second primary color value, and outputting a second PWM wave having a second PWM output frequency; and outputting a second PWM wave corresponding to the second PWM wave output frequency according to the second PWM wave Light source voltage; determining a third PWM output frequency according to a third primary color value, and outputting a third PWM wave having a third PWM output frequency; and outputting a third light source voltage corresponding to the third PWM wave output frequency according to the third PWM wave.

According to another aspect of the present disclosure, there is also provided a device for adjusting display color as a function of temperature, including: a memory; and a processor coupled to the memory, the processor being configured to execute the following random access based on instructions stored in the memory. A method of adjusting the display color with temperature change.

According to another aspect of the present disclosure, there is also provided a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the steps of the method for adjusting display color as a function of temperature.

Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which form a part of the specification, describe embodiments of the present disclosure and, together with the description, serve to explain principles of the present disclosure.

The disclosure can be understood more clearly with reference to the accompanying drawings, based on the following detailed description, in which:

FIG. 1 is a schematic structural diagram of some embodiments of a control circuit of the present disclosure.

FIG. 2 is a schematic structural diagram of another embodiment of a control circuit of the present disclosure.

FIG. 3 is a schematic structural diagram of some embodiments of a light source control circuit in a control circuit of the present disclosure.

FIG. 4 is a schematic structural diagram of some embodiments of a temperature controller of the present disclosure.

FIG. 5 is a schematic flowchart of some embodiments of a method for adjusting display color according to a temperature change of the present disclosure.

FIG. 6 is a schematic structural diagram of some embodiments of a device for adjusting display color according to a temperature change of the present disclosure.

FIG. 7 is a schematic structural diagram of another embodiment of a device for adjusting display color according to temperature change of the present disclosure.

detailed description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the drawings. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure.

At the same time, it should be understood that, for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

The following description of at least one exemplary embodiment is actually merely illustrative and in no way serves as any limitation on the present disclosure and its application or use.

Techniques, methods, and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but where appropriate, the techniques, methods, and equipment should be considered as part of the authorization specification.

In all examples shown and discussed herein, any specific value should be construed as exemplary only and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

In order to make the objectives, technical solutions, and advantages of the present disclosure more clear, the present disclosure is further described in detail below with reference to specific embodiments and with reference to the accompanying drawings.

The temperature controller in the related technology has a relatively simple interaction mode, which cannot bring a convenient and fast interactive experience to the user. Users often look at the current temperature only when they feel too cold or overheated. This wastes energy and is not good for the user's health.

FIG. 1 is a schematic structural diagram of some embodiments of a control circuit of the present disclosure. The control circuit includes a temperature acquisition unit 110, a three primary color value determination unit 120, and a voltage control unit 130.

The temperature acquisition unit 110 is configured to acquire a current ambient temperature value. The temperature acquiring unit 110 may acquire a current ambient temperature value through a temperature sensor.

The three primary color value determination unit 120 is configured to determine a first primary color value, a second primary color value, and a third primary color value of the display panel according to a current ambient temperature value. The display panel may be a liquid crystal display panel, specifically a segmented liquid crystal display panel, and the display panel may also be a light emitting diode display panel. The first primary color is, for example, an R (red) primary color, the second primary color is, for example, a G (green) primary color, and the third primary color is, for example, a B (blue) primary color. Different values can be formed by controlling the values of the three primary colors.

The voltage control unit 130 is configured to control the voltage of the first light source of the display panel according to the mapping relationship between the first primary color value and the first light source voltage, and control the voltage of the second light source of the display panel according to the mapping relationship between the second primary color value and the second light source voltage. , Controlling the voltage of the third light source of the display panel according to the mapping relationship between the third primary color value and the third light source voltage. The display panel can be provided with three kinds of light sources. The first light source is, for example, a red color wick, the second light source is, for example, a green color wick, and the third light source is, for example, a blue color wick. The voltage control unit 130 may perform the voltage of the three light sources. Control, according to the principle of three primary colors, so that the display panel displays a variety of colors.

In this embodiment, the three primary color values are determined according to the current ambient temperature value, and then the light source voltage of the display panel is controlled according to the voltage relationship between the three primary color values and each light source, so that the display panel displays different colors according to different ambient temperatures. Improved user experience.

FIG. 2 is a schematic structural diagram of another embodiment of a control circuit of the present disclosure. The voltage control unit 130 includes a PWM (Pulse Width Modulation) wave determination circuit 210, a first light source control circuit 220, a second light source control circuit 230, and a third light source control circuit 240.

The temperature acquisition unit 110 is configured to acquire a current ambient temperature value.

The three primary color value determination unit 120 is configured to determine a first primary color value, a second primary color value, and a third primary color value of the display panel according to a current ambient temperature value. In some embodiments, one temperature value may correspond to one three primary color value, and one temperature interval may correspond to one three primary color value.

The PWM wave determination circuit 210 is configured to determine a first PWM wave duty cycle according to a first primary color value, and output a first PWM wave having a first PWM wave duty ratio, and determine a second PWM wave duty cycle according to a second primary color value. And output a second PWM wave having a second PWM wave duty cycle, determine a third PWM wave duty cycle according to a third primary color value, and output a third PWM wave having a third PWM wave duty cycle. The PWM wave determination circuit 210 can determine the correspondence between the temperature, the three primary colors, and the duty cycle of the PWM wave by looking up a table. As shown in Table 1, for example, if the current temperature is 2 °, it can be seen from the table that the duty cycle of the first PWM wave is 0%, the duty cycle of the second PWM wave is 0%, and the duty cycle of the third PWM wave is 100%.

Temperature range

PWM1 (R)

PWM2 (G)

PWM3 (B)

……...	0％0%	0％0%	100％100%
(0,5](0,5)	0％0%	0％0%	100％100%
(5,10](5,10)	0％0%	20％20%	80％80%
(10,20](10,20)	0％0%	60％60%	40％40%
(20,25](20,25)	0％0%	100％100%	0％0%
(25,30](25,30)	20％20%	80％80%	0％0%
(30,35](30,35)	60％60%	40％40%	0％0%
(35,40](35,40)	100％100%	0％0%	0％0%
……...	100％100%	0％0%	0％0%

Table 1

The first light source control circuit 220 is configured to receive a first PWM wave and output a first light source voltage corresponding to a first PWM wave duty cycle. The first light source voltage is applied to the first light source of the display panel, and the first light source is, for example, a red-colored wick.

The second light source control circuit 230 is configured to receive a second PWM wave and output a second light source voltage corresponding to a second PWM wave duty cycle. The second light source voltage is applied to the second light source of the display panel, and the second light source is, for example, a green-colored wick.

The third light source control circuit 240 is configured to receive a third PWM wave and output a third light source voltage corresponding to the third PWM wave duty cycle. A third light source voltage is applied to the third light source of the display panel, and the third light source is, for example, a blue-colored wick.

In this embodiment, the three primary color values are determined according to the current ambient temperature value, and then the three PWM wave duty cycles are determined according to the three primary color values, so as to output three light source voltages, which are respectively applied to the corresponding display panel light sources. It can make the display panel display color, and the user can judge the current ambient temperature according to the display panel color, which improves the user experience.

FIG. 3 is a schematic structural diagram of some embodiments of a light source control circuit in a control circuit of the present disclosure. The light source control circuit includes a PWM wave receiving terminal 310, a first output terminal 320, a second output terminal 330, a switching device 340, and a capacitor 350. The control terminal of the switching device 340 is connected to the PWM wave receiving terminal 310. The first terminal is connected to the first output terminal 320. In some embodiments, the switching device 340 is a transistor, wherein the control terminal of the transistor is a base and connected to the PWM wave receiving terminal 310; the first terminal of the transistor is connected to the first output terminal 320; and the second terminal of the transistor is grounded. A first terminal of the capacitor 350 is connected to a first terminal of the switching device 340, a second terminal of the capacitor 350 is connected to a second output terminal 330, and a second terminal of the capacitor 350 is connected to a power supply voltage terminal. By turning on and off the switching device 340, the charging and discharging of the capacitor 350 can be controlled, so that the voltage across the capacitor 350 can be maintained at a specific voltage value.

In some embodiments, the light source control circuit further includes a first resistor 360 and a second resistor 370, wherein the first resistor 360 is disposed between the control terminal of the switching device 340 and the PWM wave receiving terminal 310; the second The resistor 370 is disposed between the second output terminal 330 and a power voltage terminal. By setting a resistor, the light source control circuit can be prevented from being burned when the current is too large.

If the light source control circuit is the first light source control circuit 220, the PWM wave receiving end 310 is connected to the terminal that outputs the first PWM wave in the PWM wave determination circuit 210, and the first output end 320 is connected to the first pin of the first light source of the display panel The second output terminal 330 is connected to the second pin of the first light source of the display panel. After receiving the first PWM wave, the PWM wave receiving end 310 outputs a first light source voltage corresponding to the duty ratio of the first PWM wave through the output end of the first light source control circuit. The first light source voltage is applied to the first light source of the display panel. .

If the light source control circuit is the second light source control circuit 230, the PWM wave receiving end 310 is connected to the second PWM wave output terminal in the PWM wave determination circuit 210, and the first output end 320 is connected to the first pin of the second light source of the display panel. The second output terminal 330 is connected to the second pin of the second light source of the display panel. After receiving the second PWM wave, the PWM wave receiving end 310 outputs a second light source voltage corresponding to the duty ratio of the second PWM wave through the output end of the second light source control circuit, and the second light source voltage is applied to the second light source of the display panel. .

If the light source control circuit is the third light source control circuit 240, the PWM wave receiving end 310 is connected to the terminal that outputs the third PWM wave in the PWM wave determination circuit 210, and the first output end 320 is connected to the first pin of the third light source of the display panel. The second output terminal 330 is connected to the second pin of the third light source of the display panel. After receiving the third PWM wave, the PWM wave receiving end 310 outputs a third light source voltage corresponding to the duty ratio of the third PWM wave through the output end of the third light source control circuit. The third light source voltage is applied to the third light source of the display panel. .

In the above embodiment, the intensity of light emitted by the three light sources is controlled by the PWM pulse signal, so that the display panel displays the corresponding color, and the user can determine the current ambient temperature according to the color of the display panel.

In some other embodiments of the present disclosure, the PWM wave determination circuit 210 is further configured to determine a first PWM wave output frequency according to a first primary color value, and output a first PWM wave having a first PWM wave output frequency. The primary color value determines a second PWM wave output frequency, and outputs a second PWM wave having a second PWM wave output frequency, determines a third PWM wave output frequency based on the third primary color value, and outputs a third PWM wave output frequency having a third PWM wave output frequency. PWM wave. The first light source control circuit 220 outputs a first light source voltage corresponding to a first PWM wave output frequency. The second light source control circuit 230 outputs a second light source voltage corresponding to a second PWM wave output frequency. The third light source control circuit 240 outputs a third light source voltage corresponding to a third PWM wave output frequency. A first light source voltage is applied to the first light source of the display panel, a second light source voltage is applied to the second light source of the display panel, and a third light source voltage is applied to the third light source of the display panel.

In this embodiment, the output frequency of each PWM wave is calculated, thereby reducing the fluctuation of the light source voltage, and thereby avoiding flicker when the display panel displays colors.

FIG. 4 is a schematic structural diagram of some embodiments of a temperature controller of the present disclosure. The temperature controller includes a temperature sensor 410, a control circuit 420, and a display panel 430. The control circuit 420 has been described in detail in the above embodiments, and will not be further explained here.

The temperature sensor 410 is, for example, an environmental temperature sensing package, and is configured to collect a current ambient temperature value and transmit the current ambient temperature value to the control circuit 420.

The control circuit 420 outputs three light source voltages to the display panel 430, and the display panel 430 displays different colors according to the light source voltage output by the control circuit 420. The display panel is, for example, a liquid crystal display panel, and may specifically be a Duan liquid crystal display panel.

In this embodiment, the voltages of the three light sources are respectively applied to the three light sources of the display panel, and the three light sources emit light of different intensities. Based on the principle of the ratio of the three primary colors, the display panel displays the corresponding colors. The user can determine the current ambient temperature based on the color of the display panel.

In some embodiments, the temperature value may also be displayed directly on the display panel.

The following will introduce the temperature controller with a specific embodiment, in which the display panel of the temperature controller uses a liquid crystal display panel, the liquid crystal display panel uses RGB three-color backlight wicks, and leads to three backlight control pins, for example, A1 \ K1, A1 \ K2, A3 \ K3.

The temperature sensor monitors the current ambient temperature in real time, and the control circuit obtains the current accurate ambient temperature value through AD sampling. Among them, if the rated voltage of the LCD backlight is 5V, the control circuit can charge and discharge the capacitor of the light source control circuit by adjusting the duty cycle of the output PWM waveform, so that the voltage supplied to the pins of the LCD backlight is maintained between 0V-5V. When the duty is 0%, the output is 0V, and when the duty is 100%, the output is 5V.

Different ambient temperatures correspond to different three primary colors, and the three primary colors correspond to three PWM waves. The duty cycle of the PWM waves is different, and the output voltage is different. The LCD panel displays different backlights. For example, when the duty cycle of the PWM wave of A1 \ K1 is 100%, and the duty cycle of the PWM wave of A2 \ K2 and A3 \ K3 is 0%, the backlight is pure red. If both A1 \ K1 and A2 \ K2 are 100%, when A3 \ K3 is 0%, it will be yellow. Similarly, pure green and pure blue can be displayed. Further, according to the principle of three primary colors, various colors can be displayed, and the effect of stepless adjustment can be achieved.

In this embodiment, a new upgrade is made on the existing liquid crystal technology. The backlight controller, circuit and specific control strategy are used to realize the thermostat display color. The hue is changed with the change of the ambient temperature. This intuitive feeling. For example, when the ambient temperature is low, the thermostat will display a cold hue, such as blue; when the temperature is more comfortable, the thermostat will display a healthy and energy-saving hue, such as green; when the ambient temperature is high, the temperature The controller will display a warm tone, such as orange yellow. The display interface of the display board is clear and beautiful, and a variety of colors can be freely displayed, which improves the interactive experience. In addition, the cost of this solution is the same as the existing segment LCD.

In some embodiments, the present disclosure protects a power-consuming device including the control circuit or a thermostat described above.

In step 510, a current ambient temperature value is obtained.

In step 520, a first primary color value, a second primary color value, and a third primary color value of the display panel are determined according to the current ambient temperature value.

In step 530, the voltage of the first light source of the display panel is controlled according to the mapping relationship between the first primary color value and the first light source voltage, and the voltage of the second light source of the display panel is controlled according to the mapping relationship between the second primary color value and the second light source voltage. The mapping relationship between the three primary color values and the voltage of the third light source controls the voltage of the third light source of the display panel.

In some embodiments, the first PWM wave duty cycle may be determined according to the first primary color value, and a first PWM wave having the first PWM wave duty cycle may be output. According to the first PWM wave output and the first PWM wave, the duty cycle may be occupied. Compared with the corresponding first light source voltage, the first light source voltage is applied to the first light source of the display panel; a second PWM wave duty cycle is determined according to the second primary color value, and a second PWM wave having a second PWM wave duty cycle is output , According to the second PWM wave outputting a second light source voltage corresponding to the second PWM wave duty cycle, the second light source voltage is applied to the second light source of the display panel; the third PWM wave duty cycle is determined according to the third primary color value, and A third PWM wave having a third PWM wave duty is output, and a third light source voltage corresponding to the third PWM wave duty is output according to the third PWM wave. The third light source voltage is applied to the third light source of the display panel.

In other embodiments of the present disclosure, the first PWM output frequency may also be determined according to the first primary color value, and a first PWM wave having the first PWM output frequency may be output. According to the first PWM wave output and the first PWM wave output, A first light source voltage corresponding to the frequency; determining a second PWM output frequency according to the second primary color value, and outputting a second PWM wave having a second PWM output frequency; and outputting a first PWM wave corresponding to the second PWM wave output frequency according to the second PWM wave Two light source voltages; determining a third PWM output frequency according to a third primary color value, and outputting a third PWM wave having a third PWM output frequency; and outputting a third light source voltage corresponding to the third PWM wave output frequency according to the third PWM wave. A first light source voltage is applied to the first light source of the display panel, a second light source voltage is applied to the second light source of the display panel, and a third light source voltage is applied to the third light source of the display panel.

FIG. 6 is a schematic structural diagram of some embodiments of a device for adjusting display color according to a temperature change of the present disclosure. The device includes a memory 610 and a processor 620. Wherein: the memory 610 may be a magnetic disk, a flash memory, or any other non-volatile storage medium. The memory 610 is configured to store instructions in the embodiment corresponding to FIG. 5. The processor 620 is coupled to the memory 610 and may be implemented as one or more integrated circuits, such as a microprocessor or a microcontroller. The processor 620 is configured to execute instructions stored in a memory.

In some embodiments, as shown in FIG. 7, the apparatus 700 includes a memory 710 and a processor 720. The processor 720 is coupled to the memory 710 through a BUS bus 730. The device 700 can also be connected to the external storage device 750 through the storage interface 740 to call external data, and can also be connected to the network or another computer system (not shown) through the network interface 760, which will not be described in detail here.

In this embodiment, a data instruction is stored in a memory and the processor processes the instruction, so that the display panel can display different colors according to different ambient temperatures.

In other embodiments, a computer-readable storage medium stores computer program instructions thereon, which when executed by a processor implement the steps of the method in the embodiment corresponding to FIG. 5. Those skilled in the art should understand that the embodiments of the present disclosure may be provided as a method, an apparatus, or a computer program product. Therefore, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transitory storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code therein. .

The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowcharts and / or block diagrams and combinations of processes and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, so that the instructions generated by the processor of the computer or other programmable data processing device are used to generate instructions Means for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions The device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

So far, the present disclosure has been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for the purpose of illustration and are not intended to limit the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

A control circuit includes:

A temperature obtaining unit configured to obtain a current ambient temperature value;

A three primary color value determining unit configured to determine a first primary color value, a second primary color value, and a third primary color value of the display panel according to the current ambient temperature value; and

The voltage control unit is configured to control the voltage of the first light source of the display panel according to the mapping relationship between the first primary color value and the voltage of the first light source, and control the first The voltage of the two light sources is controlled according to the mapping relationship between the third primary color value and the voltage of the third light source.
The control circuit according to claim 1, wherein the voltage control unit comprises:

The pulse width modulation PWM wave determination circuit is configured to determine a first PWM wave duty cycle according to the first primary color value, and output a first PWM wave having the first PWM wave duty cycle, according to the second The primary color value determines a second PWM wave duty cycle, and outputs a second PWM wave having the second PWM wave duty cycle, determines a third PWM wave duty cycle according to the third primary color value, and outputs the third PWM wave duty cycle. A third PWM wave with a third PWM wave duty cycle;

A first light source control circuit is configured to receive the first PWM wave and output a first light source voltage corresponding to the first PWM wave duty cycle, wherein the first light source voltage is applied to the display panel. First light source

A second light source control circuit configured to receive the second PWM wave and output a second light source voltage corresponding to the second PWM wave duty cycle, wherein the second light source voltage is applied to the display panel Second light source; and

A third light source control circuit is configured to receive the third PWM wave and output a third light source voltage corresponding to the duty ratio of the third PWM wave, wherein the third light source voltage is applied to the display panel Third light source.
The control circuit according to claim 2, wherein:

The PWM wave determination circuit is further configured to determine a first PWM wave output frequency according to the first primary color value, and output a first PWM wave having the first PWM wave output frequency, and determine according to the second primary color value. A second PWM wave output frequency and output a second PWM wave having the second PWM wave output frequency, determining a third PWM wave output frequency according to the third primary color value, and outputting the third PWM wave output frequency Third PWM wave;

The first light source control circuit is further configured to output a first light source voltage corresponding to the first PWM wave output frequency;

The second light source control circuit is further configured to output a second light source voltage corresponding to the second PWM wave output frequency;

The third light source control circuit is further configured to output a third light source voltage corresponding to the third PWM wave output frequency.
The control circuit according to claim 2, wherein each of the first light source control circuit, the second light source control circuit, and the third light source control circuit includes:

PWM wave receiving end;

First output

Second output

A switching device, a control terminal of the switching device is connected to the PWM wave receiving terminal, and a first terminal of the switching device is connected to the first output terminal; and

A capacitor, a first terminal of the capacitor is connected to a first terminal of the switching device, a second terminal of the capacitor is connected to the second output terminal, and a second terminal of the capacitor is connected to a power supply voltage terminal.
The control circuit according to claim 4, wherein each of the first light source control circuit, the second light source control circuit, and the third light source control circuit further comprises:

A first resistor provided between a control terminal of the switching device and the PWM wave receiving terminal; and

A second resistor is disposed between the second output terminal and the power voltage terminal.
The control circuit according to claim 4, wherein:

The PWM wave receiving end of the first light source control circuit is connected to a terminal that outputs the first PWM wave in the PWM wave determination circuit, and the first output end of the first light source control circuit is first connected to the display panel. A first pin of the light source is connected; a second output terminal of the first light source control circuit is connected to a second pin of the first light source of the display panel;

The PWM wave receiving end of the second light source control circuit is connected to a terminal that outputs the second PWM wave in the PWM wave determination circuit, and the first output end of the second light source control circuit is connected to the second display panel. A first pin of the light source is connected; a second output terminal of the second light source control circuit is connected to a second pin of the second light source of the display panel;

A PWM wave receiving end of the third light source control circuit is connected to a terminal that outputs the third PWM wave in the PWM wave determination circuit, and a first output end of the third light source control circuit is connected to a third of the display panel. The first pin of the light source is connected; the second output terminal of the third light source control circuit is connected to the second pin of the third light source of the display panel.
The control circuit according to any one of claims 4 to 6, wherein the switching device is a triode;

A control terminal of the triode is a base, and is connected to the PWM wave receiving end;

A first end of the triode is connected to the first output end;

The second end of the triode is grounded.
A temperature controller comprising a temperature sensor, a display board and the control circuit according to any one of claims 1-7;

Wherein, the temperature sensor is configured to detect a current ambient temperature value;

The display panel is configured to display different colors according to a light source voltage output by the control circuit.
An electric equipment includes a control circuit according to any one of claims 1 to 7 or a temperature controller according to claim 8.
A method for adjusting display color with temperature change includes:

Get the current ambient temperature value;

Determining a first primary color value, a second primary color value, and a third primary color value of the display panel according to the current ambient temperature value;

The voltage of the first light source of the display panel is controlled according to the mapping relationship between the first primary color value and the voltage of the first light source, and the voltage of the second light source of the display panel is controlled according to the mapping relationship between the second primary color value and the second light source voltage. The mapping relationship between the third primary color value and the third light source voltage controls the voltage of the third light source of the display panel.
The method of claim 10, further comprising:

Determining a first PWM wave duty cycle according to the first primary color value, and outputting a first PWM wave having the first PWM wave duty cycle, according to the first PWM wave output and the first PWM wave A first light source voltage corresponding to a space ratio, wherein the first light source voltage is applied to the first light source of the display panel;

Determining a second PWM wave duty cycle according to the second primary color value, and outputting a second PWM wave having the second PWM wave duty cycle, according to the second PWM wave output and the second PWM wave A second light source voltage corresponding to the air ratio, wherein the second light source voltage is applied to the display panel second light source;

Determine a third PWM wave duty cycle according to the third primary color value, and output a third PWM wave having the third PWM wave duty cycle, and output according to the third PWM wave and the third PWM wave The third light source voltage corresponding to the air ratio, wherein the third light source voltage is applied to the third light source of the display panel.
The method according to claim 11, further comprising:

Determine a first PWM output frequency according to the first primary color value, and output a first PWM wave having the first PWM output frequency; and output a first PWM wave corresponding to the first PWM wave output frequency according to the first PWM wave A light source voltage;

Determine a second PWM output frequency according to the second primary color value, and output a second PWM wave having the second PWM output frequency; and output a first PWM wave corresponding to the second PWM wave output frequency according to the second PWM wave Two light source voltages;

Determine a third PWM output frequency according to the third primary color value, and output a third PWM wave having the third PWM output frequency; and output a third PWM wave corresponding to the third PWM wave output frequency according to the third PWM wave Three light source voltages.
A device for adjusting display color with temperature change includes:

Memory; and

A processor coupled to the memory, the processor configured to execute a method of adjusting a display color as a function of a temperature change according to any one of claims 10 to 12 based on instructions stored in the memory.
A computer-readable storage medium having computer program instructions stored thereon, the instructions, when executed by a processor, implement the steps of the method of adjusting display color as a function of temperature according to any one of claims 10 to 12.