Display and control method and device for display

Abstract

The invention relates to the technical field of liquid crystal display, and discloses a display. The display comprises a backlight module, a liquid crystal panel, a control mainboard and a field programmable gate array. The backlight module comprises a visible light source assembly used for emitting visible light. The liquid crystal panel is arranged on the outer side of the backlight module, and the liquid crystal panel is used for controlling the throughput of visible light emitted by the backlight module; the control mainboard is used for outputting a first video signal; and the field programmable gate array is used for receiving the first video signal of the control mainboard and respectively outputting a second video signal and a driving signal to the liquid crystal panel and the backlight module in a synchronous output form. Therefore, under the condition that the display color temperature and the image quality of the display are ensured, the RGB backlight is matched with the achromatic optical filter panel, the color gamut can be improved, the brightness can be reduced, the blue light proportion is reduced, the damage of the display to human eyes is reduced, and the use experience of a user is improved. Meanwhile, the invention also discloses a control method and device for the display.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid crystal display, for example, to a display, a control method and device for the display. BACKGROUND

[0002] In electronic core industry or next generation information network industry, such as handheld tablet display device, liquid crystal display or electronic product with LED display screen, such as mobile phone, full-color picture display is often displayed by light color matching between red, green and blue three colors (also known as three primary colors) of LED. Among them, the proportion of blue light wavelength peak in the electronic display screen is much higher than that of green and red light, and the blue light with wavelength of 430nm-450nm is considered to have damage to human eyes, which can cause myopia or induce deepening of myopia degree.

[0003] In the related art, the existing display is generally provided with an eye protection mode. In the eye protection mode, the display artificially reduces the proportion of blue light by adjusting hardware or software, so as to reduce the damage of the display to the human eye.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] In the related art, the existing display reduces the damage of the display to the human eye in the form of forcibly reducing the proportion of blue light. However, this will affect the display color temperature and display quality of the display, and reduce the user experience.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important elements or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a display, a control method and device for the display, which can reduce the proportion of blue light in the display visible light while ensuring the display color temperature and display quality of the display, thereby reducing the damage of the display to the human eye and improving the user experience.

[0009] In a first aspect, embodiments of this disclosure provide a display comprising: a backlight module, a liquid crystal panel, a control motherboard, and a field-programmable gate array (FPGA). The backlight module includes a visible light source assembly for emitting visible light; the liquid crystal panel is disposed outside the backlight module and is used to control the amount of visible light emitted by the backlight module; the control motherboard is used to output a first video signal; the FPGA is used to receive the first video signal from the control motherboard and output a second video signal and a drive signal to the liquid crystal panel and the backlight module in a synchronous output manner, respectively; wherein the frequency of the second video signal is three times that of the first video signal, and the frequency of the drive signal is three times that of the first video signal.

[0010] In some embodiments, the visible light source assembly includes: a power supply, a red LED, a green LED, and a blue LED, wherein the power supply is electrically connected to the red LED, the green LED, and the blue LED, respectively; and a field-programmable gate array can output a drive signal to the power supply to enable the power supply to illuminate the red LED, the green LED, and the blue LED.

[0011] In some embodiments, the display further includes a digital-to-analog converter (DAC). The DAC is electrically connected to a power supply and can control the power supply to the red, green, and blue LEDs to adjust the current amplitude of the red, green, and blue LEDs.

[0012] In some embodiments, the response time of the power supply is less than or equal to a preset time.

[0013] In some embodiments, the backlight module further includes a backlight panel. The backlight panel is mounted on the display area of ​​the housing and has a light source area; wherein the backlight module includes a plurality of visible light source components, which are uniformly distributed in the light source area.

[0014] In some embodiments, the backlight module further includes: multiple ultraviolet light sources and a control element. The multiple ultraviolet light sources are uniformly distributed in the light source area, and the ultraviolet light sources can emit near-ultraviolet light. The ultraviolet light sources can be turned on or off independently of the visible light source components. The control element is electrically connected to the ultraviolet light sources and is used to control the ultraviolet light sources to turn on or off. The wavelength of the near-ultraviolet light is greater than or equal to a first preset wavelength, and less than or equal to a second preset wavelength. When the display is in eye protection mode, the control element controls the ultraviolet light sources to turn on.

[0015] In some embodiments, the wavelength of near-ultraviolet light is greater than or equal to 360 nm and less than or equal to 400 nm.

[0016] In some embodiments, the backlight module further includes an ambient light sensor. The ambient light sensor is used to acquire the ambient light intensity; wherein, the control element is electrically connected to the ambient light sensor so that the control element can control the intensity of the ultraviolet light source according to the acquired ambient light intensity.

[0017] Secondly, this disclosure also provides a control method for a display, which is applied to the aforementioned display. The display includes a backlight module, a liquid crystal panel, a control motherboard, and a field-programmable gate array (FPGA). The control motherboard is used to output a first video signal, and the FPGA is used to receive the first video signal and output a second video signal and a drive signal to the liquid crystal panel and the backlight module, respectively. The control method includes: controlling the FPGA to receive the first video signal; controlling the FPGA to output the second video signal to the liquid crystal panel; and outputting a drive signal to the backlight module.

[0018] Thirdly, embodiments of this disclosure also provide a control device for a display, including a processor and a memory storing program instructions, wherein the processor is configured to execute the above-described control method for a display when running the program instructions.

[0019] The present disclosure provides a display, a control method for the display, and an apparatus for controlling the display, which can achieve the following technical effects:

[0020] This disclosure provides a display comprising: a backlight module, a liquid crystal panel, a control motherboard, and a field-programmable gate array (FPGA). The backlight module includes a visible light source component for emitting visible light; the liquid crystal panel is disposed outside the backlight module and is used to control the amount of visible light emitted by the backlight module; the control motherboard is used to output a first video signal; the FPGA receives the first video signal from the control motherboard and outputs a second video signal and a drive signal to the liquid crystal panel and the backlight module synchronously, respectively; wherein the frequency of the second video signal is three times that of the first video signal, and the frequency of the drive signal is three times that of the first video signal. Thus, when the display is operating, the control motherboard outputs the first video signal to the FPGA. After receiving the first video signal, the FPGA outputs the second video signal to the liquid crystal panel and synchronously outputs the drive signal to the backlight module. At this time, the visible light source component of the backlight module is illuminated, and the liquid crystal panel is synchronously controlled. This configuration can improve the color gamut of the display through precise matching between the liquid crystal panel and the backlight module. Simultaneously, the field-programmable gate array (FPGA) outputs a second video signal and a drive signal to the LCD panel and backlight module at three times the frequency of the first video signal, respectively. This increases the display's frame rate and further enhances its display performance. In this way, while maintaining the display's color temperature and image quality, the proportion of blue light in the visible light spectrum is reduced, thereby minimizing eye strain and improving the user experience.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of a display provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of the structure of another display provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of a visible light source assembly provided in an embodiment of this disclosure;

[0026] Figure 4 This is a partial structural schematic diagram of a display provided in an embodiment of this disclosure;

[0027] Figure 5This is a schematic diagram of the structure of another display provided in an embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of the structure of another display provided in an embodiment of this disclosure;

[0029] Figure 7 This is a schematic diagram of the structure of another display provided in an embodiment of this disclosure;

[0030] Figure 8 This is a schematic diagram of a control method for a display provided in an embodiment of this disclosure;

[0031] Figure 9 This is a schematic diagram of a control device for a display provided in an embodiment of this disclosure.

[0032] Figure label:

[0033] 10: Housing; 11: Ambient light sensor; 12: Control motherboard; 13: Field-programmable gate array; 14: Digital-to-analog converter; 15: Power supply;

[0034] 20: Backlight module; 21: Backlight panel; 22: Visible light source assembly; 221: Red LED; 222: Green LED; 223: Blue LED; 23: Purple light source;

[0035] 30: LCD panel;

[0036] 401: Processor; 402: Memory; 403: Bus; 404: Communication interface. Detailed Implementation

[0037] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0038] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0039] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0040] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0041] Unless otherwise stated, the term "multiple" means two or more.

[0042] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0043] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0045] In current technology, traditional television displays typically use blue chips to excite phosphors or quantum dots to generate white light for displaying images. This results in blue light energy exceeding 50%, which can damage the eyes. Current television displays generally have eye-care modes that artificially reduce the blue light ratio through hardware or software adjustments to avoid eye damage. However, these eye-care modes affect the display's color temperature and image quality, thus reducing the user experience.

[0046] like Figures 1 to 9As shown, this disclosure provides a display, a control method and apparatus for the display, which can reduce the proportion of blue LEDs in visible light while ensuring the display's color temperature and image quality, thereby reducing the damage of the display to the human eye and improving the user experience.

[0047] like Figures 1 to 7 As shown, in a first aspect, embodiments of this disclosure provide a display comprising: a backlight module 20, a liquid crystal panel 30, a control motherboard 12, and a field-programmable gate array 13. The backlight module 20 includes a visible light source assembly 22 for emitting visible light; the liquid crystal panel 30 is disposed outside the backlight module 20 and is used to control the amount of visible light emitted by the backlight module 20; the control motherboard 12 is used to output a first video signal; the field-programmable gate array 13 is used to receive the first video signal from the control motherboard 12 and output a second video signal and a drive signal to the liquid crystal panel 30 and the backlight module 20 in a synchronous output manner, respectively; wherein the frequency of the second video signal is three times that of the first video signal, and the frequency of the drive signal is three times that of the first video signal.

[0048] Specifically, the display also includes a housing 10, which has a mounting area. A backlight module 20 and a liquid crystal panel 30 are disposed in the mounting area, with the liquid crystal panel 30 located outside the backlight module 20. A control motherboard 12 is electrically connected to a field-programmable gate array (FPGA) 13, enabling the FPGA 13 to receive a first video signal from the control motherboard 12. After receiving the first video signal, the FPGA 13 processes the signal and outputs a second video signal and a drive signal to the liquid crystal panel 30 and the backlight module 20, respectively. The FPGA 13 outputs the second video signal and the drive signal to the liquid crystal panel 30 and the backlight module 20 synchronously. Upon receiving the drive signal, the backlight module 20 illuminates the visible light source component 22. Upon receiving the second video signal, the liquid crystal panel 30 outputs a corresponding display image and controls the amount of visible light emitted by the backlight module 20 according to the second video signal.

[0049] When the monitor is running, the control motherboard 12 sends a first video signal to the field-programmable gate array 13. Then, the field-programmable gate array 13 synchronously outputs a second video signal and a drive signal to the liquid crystal panel 30 and the backlight module 20 to illuminate the backlight module 20 and control the liquid crystal panel 30 to output the corresponding display image. This setup improves the monitor's color gamut through precise matching between the liquid crystal panel 30 and the backlight module 20. It is understood that, according to the Helmholtz-Korlausch effect, a higher color gamut results in better display performance at the same brightness. Therefore, the monitor provided in this application can reduce the proportion of blue LED 223 in the visible light while maintaining the monitor's display effect, thereby reducing the harm to the human eye and improving the user experience.

[0050] Simultaneously, the frequency of the second video signal is three times that of the first video signal, and the drive signal is also three times that of the first video signal. This increases the display's frame rate, further enhancing the display's performance.

[0051] like Figures 1 to 7 As shown, in some embodiments, the visible light source assembly 22 includes: a power supply 15, a red LED, a green LED, and a blue LED, and the power supply 15 is electrically connected to the red LED, the green LED, and the blue LED, respectively; the field programmable gate array 13 can output a drive signal to the power supply 15 to make the power supply 15 light up the red LED, the green LED, and the blue LED.

[0052] Specifically, power supply 15 is electrically connected to red LED, green LED, and blue LED respectively, so that power supply 15 can output voltage to red LED, green LED, and blue LED respectively, so as to light up red LED, green LED, or blue LED individually. Field programmable gate array 13 can output PWM (pulse width modulation) drive signal to power supply 15 to adjust the voltage phase output by power supply 15 to red LED, green LED, and blue LED.

[0053] It is understandable that existing displays typically have a color filter on the LCD panel 30, which affects the transmittance of light emitted by the backlight module 20. The display provided in this application uses red LEDs, green LEDs, and blue LEDs as the light source for the backlight module 20, allowing it to directly emit high-purity primary color light. Furthermore, because LED light sources are characterized by high brightness and accurate color, the LCD panel 30 can achieve full-color display directly through precise control and color mixing technology even without a color filter, thus improving the transmittance of light emitted by the backlight module 20. This further reduces the energy consumption of the blue LEDs while maintaining the display's performance.

[0054] like Figure 7As shown, in some embodiments, the display further includes a digital-to-analog converter 14. The digital-to-analog converter 14 is electrically connected to a power supply 15 and can control the power supply 15 to supply current to the red LED, green LED, and blue LED to adjust the current amplitude of the red LED, green LED, and blue LED.

[0055] Specifically, the field-programmable gate array 13 is electrically connected to the digital-to-analog converter 14. The field-programmable gate array 13 can supply ADIM voltages to the red, green, and blue LEDs respectively via the digital-to-analog converter 14 and the power supply 15 to adjust the current amplitude of the red, green, and blue LEDs. This configuration can further improve the accuracy of controlling the red, green, and blue LEDs.

[0056] In the above embodiment, ADIM refers to a voltage signal used to adjust the backlight brightness of the LCD TV. This adjustment is typically achieved by changing the voltage applied to the backlight module 20, thereby controlling the screen's brightness and contrast. In the LCD TV's power supply board 15 or related circuitry, the ADIM interface or signal is used to receive instructions from the control board or microprocessor 401 to adjust the backlight voltage, thereby achieving the desired display effect.

[0057] In some embodiments, the response time of power supply 15 is less than or equal to a preset time.

[0058] Specifically, the response time of power supply 15 is less than or equal to 20µs, for example, the response time of power supply 15 can be 20µs, 18µs, 16µs, 14µs, or 12µs. This setting can further improve the accuracy of controlling the visible light source component 22.

[0059] like Figure 1 and Figure 4 As shown, in some embodiments, the backlight module 20 further includes a backlight panel 21. The backlight panel 21 is mounted on the display area of ​​the housing 10, and the backlight panel 21 is provided with a light source area; wherein, the backlight module 20 includes a plurality of visible light source components 22, and the plurality of visible light source components 22 are evenly distributed in the light source area.

[0060] Specifically, the backlight panel 21 is installed in the display area of ​​the housing 10, and the backlight module 20 includes multiple visible light source components 22, which are clustered together and not located in the light source area of ​​the backlight panel 21.

[0061] like Figure 1 and Figure 4As shown, in some embodiments, the backlight module 20 further includes: a plurality of ultraviolet light sources 23 and a control element. The plurality of ultraviolet light sources 23 are evenly distributed in the light source area, and the ultraviolet light sources 23 can emit near-ultraviolet light. The ultraviolet light sources 23 can be turned on or off independently of the visible light source assembly 22. The control element is electrically connected to the ultraviolet light sources 23 and is used to control the ultraviolet light sources 23 to be turned on or off. The wavelength of the near-ultraviolet light is greater than or equal to a first preset wavelength, and less than or equal to a second preset wavelength. When the display is in eye protection mode, the control element controls the ultraviolet light sources 23 to be turned on.

[0062] Specifically, the backlight panel 21 has multiple visible light source components 22 in its light source area, with a certain gap between adjacent visible light source components 22. A violet light source 23 is positioned within the gap between the visible light source components 22 to avoid affecting their layout. The backlight module 20 also has an independent power supply 15 to power the violet light source 23, allowing it to be turned on or off independently of the visible light source components 22. The violet light source 23 emits near-ultraviolet light. Since near-ultraviolet light is non-visible, it will not affect the display effect of the monitor. Furthermore, since the liquid crystal panel 30 of the monitor provided in this application does not require a color filter, the near-ultraviolet light emitted by the violet light source 23 can penetrate the liquid crystal panel 30 without damage.

[0063] Users can directly activate the eye protection mode via the control element, which can automatically activate the eye protection mode after the monitor has been running for a preset time. When the eye protection mode is activated, the control element controls the ultraviolet light source 23 to turn on, so that the ultraviolet light source 23 emits near-ultraviolet light towards the user.

[0064] Understandably, several studies have indicated that violet light may have a protective effect against myopia. Violet light is the shortest wavelength of visible light, abundant in outdoor sunlight but rarely detected in indoor lighting environments. Research shows that violet light can inhibit the development of myopia in chicks and humans, including the progression of myopia in school-aged children and high myopia in adults. Studies have shown that the inhibitory effect of violet light on myopia is related to its ability to increase the synthesis and release of dopamine in the retina. Dopamine plays a crucial role in the growth and development of the eyeball, and changes in its concentration can affect the shape and refractive state of the eye.

[0065] In some embodiments, the wavelength of near-ultraviolet light is greater than or equal to 360 nm and less than or equal to 400 nm.

[0066] Specifically, the wavelength of near-ultraviolet light can be 360nm, 365nm, 380nm, 390nm, or 400nm. Near-ultraviolet light with the above wavelengths is more effective in protecting users' eyes.

[0067] like Figure 1As shown, in some embodiments, the backlight module 20 further includes an ambient light sensor 11. The ambient light sensor 11 is used to acquire the ambient light brightness; wherein, the control element is electrically connected to the ambient light sensor 11 so that the control element can control the intensity of the ultraviolet light source 23 according to the acquired ambient light brightness.

[0068] Specifically, the ambient light sensor 11 is disposed on the housing 10 of the display, and is located on one side of the display area to avoid the sensor affecting the display effect. The ambient light sensor 11 is used to obtain the brightness of the ambient light. When the brightness of the ambient light is high, the control element can control the ultraviolet light source 23 to increase the intensity of near-ultraviolet light; when the brightness of the ambient light is low, the control element can control the intensity of near-ultraviolet light from the ultraviolet light source 23. This configuration can further improve the eye protection effect of the display for users.

[0069] like Figure 8 As shown, in a second aspect, embodiments of this disclosure also provide a control method for a display, which is applied to the display described above; the display includes: a backlight module 20, a liquid crystal panel 30, a control motherboard 12 and a field-programmable gate array 13, the control motherboard 12 is used to output a first video signal, and the field-programmable gate array 13 is used to receive the first video signal and output a second video signal and a drive signal to the liquid crystal panel 30 and the backlight module 20 respectively.

[0070] The control method for the display includes:

[0071] S101, the display controls the field-programmable gate array to receive the first video signal.

[0072] S102, the display controls the field-programmable gate array to output a second video signal to the liquid crystal panel, and controls the field-programmable gate array to output a drive signal to the backlight module.

[0073] The field-programmable gate array 13 synchronously outputs a second video signal and a drive signal to the liquid crystal panel 30 and the backlight module 20, respectively.

[0074] This configuration, through precise matching of the LCD panel 30 and the backlight module 20, improves the color gamut of the display. It is understandable that, according to the Helmholtz-Korlausch effect, a higher color gamut results in better display quality at the same brightness. Therefore, the display provided in this application can reduce the proportion of blue LED 223 in the visible light while maintaining display quality, thereby reducing the harm to the human eye and improving the user experience.

[0075] like Figure 9As shown, in a third aspect, embodiments of this disclosure also provide a control device for a display, including a processor 401 and a memory 402 storing program instructions. The processor 401 is configured to execute the aforementioned control method for a display when running the program instructions. Optionally, the device may further include a communication interface 404 and a bus 403. The processor 401, communication interface 404, and memory 402 can communicate with each other via the bus 403. The communication interface 404 can be used for information transmission. The processor 401 can call logical instructions in the memory 402 to execute the control method for a display described in the above embodiments.

[0076] Furthermore, the logical instructions in the aforementioned memory 402 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0077] The memory 402, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 401 executes functional applications and data processing by running the program instructions / modules stored in the memory 402, that is, it implements the control method for the display in the above embodiments.

[0078] The memory 402 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 402 may include high-speed random access memory 402, and may also include non-volatile memory 402.

[0079] This disclosure also provides a computer-readable storage medium storing program instructions that, when executed, cause a computer to perform the aforementioned control method for a display.

[0080] The foregoing description and accompanying drawings fully illustrate the embodiments disclosed in this application to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. The embodiments disclosed in this application are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from their scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A display, characterized by The display comprises: a backlight module comprising a visible light source assembly for emitting visible light; a liquid crystal panel disposed outside the backlight module, the liquid crystal panel being configured to control the amount of visible light emitted by the backlight module; a control mainboard configured to output a first video signal; a field programmable gate array configured to receive the first video signal from the control mainboard and output a second video signal and a driving signal to the liquid crystal panel and the backlight module, respectively, in a synchronous manner; wherein the frequency of the second video signal is three times the frequency of the first video signal, and the frequency of the driving signal is three times the frequency of the first video signal.

2. The display of claim 1, wherein, The visible light source assembly comprises a power supply, a red LED, a green LED, and a blue LED, and the power supply is electrically connected to the red LED, the green LED, and the blue LED, respectively; The field programmable gate array is configured to output the driving signal to the power supply to light up the red LED, the green LED, and the blue LED.

3. The display of claim 2, wherein, The display further comprises: a digital-to-analog converter electrically connected to the power supply, the digital-to-analog converter being configured to control the power supply to adjust the current amplitude of the red LED, the green LED, and the blue LED.

4. The display of claim 2, wherein the corresponding time of the power supply is less than or equal to a preset time.

5. The display of any one of claims 1 to 4, wherein, The backlight module further comprises: a backlight plate mounted on the display area of the housing, the backlight plate being provided with a light source area; wherein the backlight module comprises a plurality of visible light source assemblies, and the plurality of visible light source assemblies are uniformly arranged in the light source area.

6. The display of claim 5, wherein, The backlight module further comprises: a plurality of purple light sources uniformly arranged in the light source area, the purple light sources being capable of emitting near-ultraviolet light, and the purple light sources being capable of being independently turned on or turned off from the visible light source assemblies; and a control element electrically connected to the purple light sources and configured to control the purple light sources to be turned on or turned off; wherein the wavelength of the near-ultraviolet light is greater than or equal to a first preset wavelength and less than or equal to a second preset wavelength; in a case where the display is in an eye protection mode, the control element controls the purple light sources to be turned on.

7. The display of claim 6, wherein the wavelength of the near-ultraviolet light is greater than or equal to 360 nm and less than or equal to 400 nm.

8. The display of claim 5, wherein, The display further comprises: an ambient light sensor configured to obtain ambient light brightness; wherein the control element is electrically connected to the ambient light sensor, so that the control element can control the intensity of the purple light sources according to the obtained ambient light brightness.

9. A control method for a display, characterized by, The display comprises a backlight module, a liquid crystal panel, a control mainboard, and a field programmable gate array, the control mainboard is configured to output a first video signal, and the field programmable gate array is configured to receive the first video signal and output a second video signal and a driving signal to the liquid crystal panel and the backlight module, respectively; the control method comprises: controlling the field programmable gate array to receive the first video signal; controlling the field programmable gate array to output the second video signal to the liquid crystal panel and output the driving signal to the backlight module.

10. A control device for a display comprising a processor and a memory having stored therein program instructions, characterised in that, The processor is configured to execute the control method for the display according to claim 9 when running program instructions.

Images