CN110718185A - LED display screen device, display method and television equipment - Google Patents
LED display screen device, display method and television equipment Download PDFInfo
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- CN110718185A CN110718185A CN201910903914.1A CN201910903914A CN110718185A CN 110718185 A CN110718185 A CN 110718185A CN 201910903914 A CN201910903914 A CN 201910903914A CN 110718185 A CN110718185 A CN 110718185A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
Abstract
The embodiment of the invention discloses an LED display screen device, a display method and television equipment, wherein the device comprises: the LED display screen is used for outputting light rays with corresponding wavelengths; the brightness sensor is used for detecting the brightness of the environment in front of the LED display screen; the LED display screen comprises at least two sets of light source driving systems, a light source driving system and a light source control system, wherein the light source driving systems are used for driving the LED display screen so as to enable the LED display screen to output light rays with corresponding wavelengths; and the processor determines the wavelength of the light required to be output by the LED display screen and the light source driving system corresponding to the wavelength of the light according to the ambient light brightness, and controls the light source driving system to drive the LED display screen to work so that the LED display screen outputs the light with the wavelength suitable for the ambient light brightness. The LED display screen device solves the problem that light output by the LED display screen device in the prior art is not suitable for a human eye visual observation system, and achieves the technical effect that the output spectrum is suitable for the human eye visual observation system under different environmental light brightness.
Description
Technical Field
The embodiment of the invention relates to the field of LED display screens, in particular to an LED display screen device, a display method and television equipment.
Background
The light output by the LED display screen device in the prior art does not accord with a human eye vision observation system, and the light source of the LED display screen device deviates from a human light and dark vision perception curve, so that a user can watch and play a mobile phone in a day with sufficient lighting, or watch and play the mobile phone at night with black paint, the experience feeling of an image is low, and the LED light source does not efficiently accord with the human eye vision curve, so that the light efficiency loss is large.
Therefore, the prior art LED display screen device has at least a problem that the output spectrum thereof does not conform to the human visual observation system.
Disclosure of Invention
The embodiment of the invention provides an LED display screen device, a display method and television equipment, which aim to solve the problem that the LED display screen device in the prior art at least has output spectrum which is not in accordance with a human eye visual observation system.
In a first aspect, an embodiment of the present invention provides an LED display screen device, including:
the LED display screen is used for outputting light rays with corresponding wavelengths;
the brightness sensor is used for detecting the brightness of the environment light in front of the LED display screen;
the LED display screen comprises at least two sets of light source driving systems, wherein the light source driving systems are used for driving the LED display screen so as to enable the LED display screen to output light rays with corresponding wavelengths;
and the processor is used for determining the wavelength of the light which needs to be output by the LED display screen and the light source driving system corresponding to the wavelength of the light according to the ambient light brightness, and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs the light with the wavelength suitable for the ambient light brightness.
Further, the at least two sets of light source driving systems comprise a scotopic vision light source driving system and a photopic vision light source driving system;
the scotopic vision light source driving system is used for driving the LED display screen to work under the control of the processor when the ambient light brightness is smaller than a first brightness threshold value, so that the LED display screen outputs light with the wavelength being a first wavelength threshold value;
the photopic vision light source driving system is used for driving the LED display screen to work under the control of the processor when the ambient light brightness is larger than a second brightness threshold value, so that the LED display screen outputs light with the wavelength being the second wavelength threshold value.
Further, the at least two sets of light source driving systems further comprise an intermediate vision light source driving system;
the mesopic vision light source driving system is used for driving the LED display screen to work under the control of the processor when the ambient light brightness is larger than a first brightness threshold and smaller than a second brightness threshold, so that the LED display screen outputs light with the wavelength being a third wavelength threshold, and the third wavelength threshold is larger than the first wavelength threshold and smaller than the second wavelength threshold.
Further, the mesopic vision light source driving system comprises at least a first mesopic vision light source driving system and a second mesopic vision light source driving system;
the first mesopic vision light source driving system and the second mesopic vision light source driving system correspond to different brightness thresholds and different wavelength thresholds of light, the brightness thresholds are distributed between the first brightness threshold and the second brightness threshold, and the light wavelength thresholds are distributed between the first wavelength threshold and the second wavelength threshold.
Further, the first luminance threshold value is 3cd/m2The second luminance threshold value is 10cd/m2；
The first wavelength threshold value is 507nm, and the second wavelength threshold value is 555 nm.
Further, the brightness sensor is fixedly arranged in front of the LED display screen.
In a second aspect, an embodiment of the present invention further provides a display method applied to the LED display screen device in the first aspect, including:
acquiring the brightness of the environment through a brightness sensor;
determining the wavelength of light rays required to be output by the LED display screen and a light source driving system corresponding to the wavelength light rays according to the ambient light brightness;
and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs light rays with wavelengths suitable for the ambient light brightness.
Further, the LED display screen device comprises a scotopic vision light source driving system and a photopic vision light source driving system;
if the ambient light brightness is smaller than the first brightness threshold, the light wavelength corresponding to the ambient light brightness is a first wavelength threshold, and the light source driving system corresponding to the light wavelength is a scotopic vision light source driving system;
and if the ambient light brightness is greater than the second brightness threshold, the light wavelength corresponding to the ambient light brightness is the second wavelength threshold, and the light source driving system corresponding to the light wavelength is a photopic vision light source driving system.
Further, the LED display screen device also comprises an intermediate vision light source driving system;
if the ambient light brightness is greater than the first brightness threshold and less than the second brightness threshold, the light wavelength corresponding to the ambient light brightness is a third wavelength threshold, and the light source driving system corresponding to the light wavelength is an intermediate vision light source driving system, wherein the third wavelength threshold is greater than the first wavelength threshold and less than the second wavelength threshold.
In a third aspect, an embodiment of the present invention further provides a television apparatus, where the apparatus includes:
the LED display screen device of the first aspect is configured to output current playing content;
and the controller is used for determining the current playing content and controlling the LED display screen device to output the current playing content.
The technical scheme of the LED display screen device provided by the embodiment of the invention comprises a brightness sensor, an LED display screen, a processor and at least two sets of light source driving systems, wherein the processor acquires the brightness of the environment through the brightness sensor; determining the wavelength of light rays required to be output by the LED display screen and a light source driving system corresponding to the wavelength light rays according to the ambient light brightness; and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs light rays with wavelengths suitable for the ambient light brightness. Compared with the prior art, under different environmental light brightness, the LED display screen is driven to work by different light source driving systems, so that the LED display screen outputs light rays with wavelengths corresponding to different environmental light brightness, and the technical effect that the output spectra under different environmental light brightness are all suitable for a human eye observation system is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1A is a schematic structural diagram of an LED display screen device according to an embodiment of the present invention;
fig. 1B is a schematic structural diagram of another LED display screen device according to a first embodiment of the present invention;
fig. 1C is a schematic structural diagram of another LED display screen device according to a first embodiment of the present invention;
FIG. 2A is a diagram illustrating an output spectrum of a scotopic vision light source driving system according to an embodiment of the present invention;
FIG. 2B is a diagram illustrating an output spectrum of a photopic vision light source driving system according to an embodiment of the present invention;
FIG. 3 is a flowchart of a display method according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display device according to a third embodiment of the present invention;
fig. 5A is a block diagram of a television apparatus according to a fourth embodiment of the present invention;
fig. 5B is a block diagram of a television apparatus according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment of the invention provides an LED display screen device. As shown in fig. 1A, the LED display screen device includes a brightness sensor 11, an LED display screen 12, a processor 14, and at least two sets of light source driving systems 13, where the LED display screen 12 is used to output light with corresponding wavelength; the brightness sensor 11 is used for detecting the ambient light brightness in front of the LED display screen 12; the light source driving system 13 is configured to drive the LED display screen 12 to work, so that the LED display screen 12 outputs light with a corresponding wavelength; the processor 14 is configured to determine, according to the ambient light brightness, a wavelength of light that needs to be output by the LED display 12 and the light source driving system 13 corresponding to the wavelength of light, and control the light source driving system 13 to drive the LED display 12 to operate, so that the LED display 12 outputs light with a wavelength suitable for the ambient light brightness.
The LED display screen device can be used as a display device of a television, a mobile phone, a computer, a learning machine, and the like, and the present embodiment will be described by taking the LED display screen as a display device of a television as an example. It is understood that the display device of the television is used for outputting the content played by the television, and the visual perception of the user watching the played content is influenced by the brightness of the ambient light between the display device (LED display screen) and the user. For this reason, the present embodiment sets the brightness sensor in front of the LED display screen to detect the ambient light brightness in front of the LED display screen.
It should be noted that the brightness sensor may be an existing brightness sensor, and the structure of the present embodiment is not specifically limited herein.
Each light source driving system corresponds to a certain light wavelength, that is, each light source driving system 13 can drive the LED display 12 to output light with a main wavelength. In consideration of that the brightness of the environment where the television is located may change with time, and the visual perception of people may change with the change of the ambient light brightness, the LED display screen device of the embodiment is provided with at least two sets of light source driving systems for driving the LED display screen to work in the specified ambient light brightness respectively, so that the LED display screen outputs light with corresponding wavelength.
Preferably, the processor 14 obtains the ambient light brightness collected by the brightness sensor 11, determines the wavelength of the light expected to be output by the LED display 12 and the light source driving system 13 corresponding to the wavelength of the light according to the ambient light brightness, and then controls the light source driving system 13 to drive the LED display 12 to operate, so that the LED display 12 outputs the light with the expected wavelength.
The at least two sets of light source driving systems include a scotopic vision light source driving system 131 and a photopic vision light source driving system 132 (see fig. 1B), where the scotopic vision light source driving system 131 is used for driving the LED display screen to work under the control of the processor when the ambient light brightness is less than the first brightness threshold, so as to output light with the wavelength being the first wavelength threshold; the photopic vision light source driving system 132 is configured to drive the LED display screen to operate under the control of the processor when the ambient light brightness is greater than the second brightness threshold, so as to output light with a wavelength of the second wavelength threshold.
Wherein the first brightness threshold, the second brightness threshold, the first wavelength threshold and the second wavelength threshold are preferably determined in accordance with a human eye viewing system. The first luminance threshold value in the present embodiment is preferably 3cd/m2The second luminance threshold is preferably 10cd/m2(ii) a The first wavelength threshold is preferably 507nm (see fig. 2A) and the second wavelength threshold is preferably 555nm (see fig. 2B). The two brightness threshold values and the wavelength threshold value can enable the spectrum output by the LED display screen in different brightness environments to have higher matching degree with a human eye visual curve, and the picture color and the image sharpness are better. And if the degree of matching of the luminous efficiency function of the output spectrum of the LED display screen and the spectrum of human eyes is high, the light source utilization rate of the LED display screen can be improved,the driving current of the light source driving system is reduced, so that low power consumption, environmental protection and energy conservation are realized.
It will be appreciated that most televisions are not only exposed to dark environments with less than a first brightness threshold and bright environments with greater than a second brightness threshold, but also to intermediate brightness environments with greater than a first intensity threshold and less than a second brightness threshold. In order to improve the visual experience of the user in the intermediate-brightness environment, in some embodiments, the at least two sets of light source driving systems preferably further include an intermediate-vision light source driving system 133 (see fig. 1C), where the intermediate-vision light source driving system 133 is configured to drive the LED display to operate under the control of the processor when the ambient light brightness is greater than the first brightness threshold and less than the second brightness threshold, so that the LED display outputs light with a wavelength of a third wavelength threshold, where the third wavelength threshold is greater than the first wavelength threshold and less than the second wavelength threshold.
In some embodiments, to further enhance the visual perception of people, the mesopic vision light source driving system of the present embodiment at least comprises a first mesopic vision light source driving system and a second mesopic vision light source driving system; the first mesopic vision light source driving system and the second mesopic vision light source driving system correspond to different light rays with different brightness thresholds and wavelength thresholds, the brightness thresholds are distributed between the first brightness threshold and the second brightness threshold, and the wavelength thresholds are distributed between the first wavelength threshold and the second wavelength threshold.
In some embodiments, the LED display screen device is used by a plurality of users, and in consideration of different visual requirements of different users, the LED display screen device preferably further includes a selection mechanism for determining the light source driving system in the standby state and the light source driving system in the deactivated state according to the information input by the user. The processor firstly determines a brightness threshold corresponding to the light source driving system in the standby state, and then activates the light source driving system in the standby state corresponding to the brightness threshold when the brightness threshold in a certain range is detected, so as to control the light source driving system to drive the LED display screen to work, and enable the LED display screen to output light rays with corresponding wavelengths.
The technical scheme of the LED display screen device provided by the embodiment of the invention comprises a brightness sensor, an LED display screen, a processor and at least two sets of light source driving systems, wherein the processor acquires the brightness of the environment through the brightness sensor; determining the wavelength of light rays required to be output by the LED display screen and a light source driving system corresponding to the wavelength light rays according to the ambient light brightness; and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs light rays with wavelengths suitable for the ambient light brightness. Compared with the prior art, under different environmental light brightness, the LED display screen is driven to work by different light source driving systems, so that the LED display screen outputs light rays with wavelengths corresponding to different environmental light brightness, and the technical effect that the output spectra under different environmental light brightness are all suitable for a human eye observation system is achieved.
Example two
Fig. 3 is a flowchart of a display method according to a second embodiment of the present invention. The technical scheme of the embodiment is suitable for controlling the LED display screen to work in the embodiment. The method can be executed by the display device provided by the embodiment of the invention, and the device can be realized in a software and/or hardware manner and is configured to be applied in a processor. The method specifically comprises the following steps:
s201, acquiring the ambient light brightness through a brightness sensor.
The LED display screen device can be used as a display device of a television, a mobile phone, a computer, a learning machine, or the like, and the present embodiment will be described by taking the LED display screen as a display device of a television as an example. It is understood that the display device of the television is used for outputting the content played by the television, and the visual perception of the user watching the played content is influenced by the brightness of the ambient light between the display device (LED display screen) and the user. For this reason, the present embodiment sets the brightness sensor in front of the LED display screen to detect the ambient light brightness in front of the LED display screen.
S202, determining the wavelength of light needing to be output by the LED display screen and a light source driving system corresponding to the wavelength of light according to the ambient light brightness.
Because the light wavelength suitable for human eyes changes along with the change of the ambient light brightness, and each light source driving system only corresponds to one light wavelength, in order to enable the LED display screen to output light with suitable wavelengths of different ambient light brightness, the LED display screen of the embodiment at least comprises a scotopic vision light source driving system and a photopic vision light source driving system. The processor determines the light wavelength suitable for the current environment light brightness according to the acquired current environment light brightness, and then determines the light source driving system corresponding to the light with the wavelength.
Specifically, if the ambient light brightness is less than the first brightness threshold, it indicates that the current ambient light brightness is relatively low, and the scotopic vision light source driving system needs to be used for driving the LED display screen; if the ambient light brightness is greater than the second brightness threshold, the current ambient light brightness is higher, and the photopic vision light source driving system is required to drive the LED display screen.
Further, the LED display screen of this embodiment preferably further includes an intermediate vision light source driving system, at this time, if the ambient light brightness is greater than the first brightness threshold and less than the second brightness threshold, the light wavelength corresponding to the ambient light brightness is a third wavelength threshold, and the light source driving system corresponding to the light wavelength is the intermediate vision light source driving system, where the third wavelength threshold is greater than the first wavelength threshold and less than the second wavelength threshold.
In order to further improve the visual perception of people, the mesopic vision light source driving system of the embodiment at least comprises a first mesopic vision light source driving system and a second mesopic vision light source driving system; the first mesopic vision light source driving system and the second mesopic vision light source driving system correspond to different brightness thresholds and different light wavelengths, the brightness thresholds are distributed between the first brightness threshold and the second brightness threshold, and the light wavelengths are distributed between the first wavelength threshold and the second wavelength threshold.
And S203, controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs light rays with wavelengths suitable for the ambient light brightness.
After the light source driving system determines, the determined light source driving system is controlled by the processor to drive the LED display screen to work, so that the LED display screen outputs light rays with wavelengths suitable for the current environment light brightness. Specifically, if a scotopic vision light source driving system corresponding to the wavelength of the light suitable for the current ambient light brightness is determined, the processor controls the scotopic vision light source driving system to drive the LED display screen to work, so that the LED display screen outputs the light with the wavelength suitable for the current ambient light brightness as a first wavelength threshold; if the fact that the wavelength of the light suitable for the current environment light brightness corresponds to the photopic vision light source driving system is determined, the processor controls the photopic vision light source driving system to drive the LED display screen to work, so that the LED display screen outputs the light with the wavelength suitable for the current environment light brightness and the second wavelength threshold value; and if the mesopic vision light source driving system corresponding to the wavelength of the light suitable for the current ambient light brightness is determined, the processor controls the mesopic vision light source driving system to drive the LED display screen to work so that the LED display screen outputs light of a third wavelength threshold suitable for the current ambient light, wherein the third brightness threshold is larger than the first brightness threshold and smaller than the second brightness threshold, and the third wavelength threshold is larger than the first wavelength threshold and smaller than the second wavelength threshold.
Currently, if it is determined that the wavelength of the light suitable for the current ambient light brightness corresponds to the other light source driving system, the processor controls the other light source driving system to drive the LED display screen to operate, so that the LED display screen outputs the light with the wavelength suitable for the current ambient light brightness.
According to the technical scheme of the display method of the LED display screen, the ambient light brightness is obtained through the brightness sensor; determining the wavelength of light rays required to be output by the LED display screen and a light source driving system corresponding to the wavelength light rays according to the ambient light brightness; and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs light rays with wavelengths suitable for the ambient light brightness. Compared with the prior art, under different environmental light brightness, the LED display screen is driven to work by different light source driving systems, so that the LED display screen outputs light rays with wavelengths corresponding to different environmental light brightness, and the technical effect that the output spectra under different environmental light brightness are all suitable for a human eye observation system is achieved.
The display method provided by the embodiment of the invention and the LED display screen device provided by any embodiment of the invention belong to the same inventive concept, and the technical details not described in the embodiment are referred to the foregoing embodiments.
EXAMPLE III
Fig. 4 is a block diagram of a display device according to a third embodiment of the present invention. The device is used for executing the display method provided by any embodiment, and the device can be implemented by software or hardware. The device includes:
a brightness obtaining module 31, configured to obtain ambient light brightness through a brightness sensor;
the determining module 32 is configured to determine, according to the ambient light brightness, a wavelength of light that needs to be output by the LED display screen and a light source driving system corresponding to the wavelength of light;
and the driving module 33 is configured to control the light source driving system to drive the LED display to work, so that the LED display outputs light with a wavelength suitable for the ambient light brightness.
Compared with the prior art, the technical scheme of the display device of the LED display screen provided by the embodiment of the invention has the advantages that the LED display screen is driven to work by different light source driving systems under different environmental light brightness, so that the LED display screen outputs light rays with wavelengths corresponding to different environmental light brightness, and the technical effect that the output spectra under different environmental light brightness are all suitable for a human eye observation system is achieved.
The display device provided by the embodiment of the invention can execute the technical scheme of the display method in any embodiment, and has the corresponding functional modules and beneficial effects of the execution method.
Example four
Fig. 5A is a schematic structural diagram of a television apparatus according to a fourth embodiment of the present invention, as shown in fig. 5A, the television apparatus includes a controller 401 and the LED display screen device 400 according to the previous embodiment, the LED display screen device 400 is configured to output a current playing content, the controller 401 is configured to determine the current playing content, and control the LED display screen device 400 to output the current playing content.
The brightness sensor of the LED display screen device is arranged in front of the LED display screen to detect the ambient light brightness in front of the LED display screen or the television.
As shown in fig. 5B, the apparatus further comprises a memory 402 and an input device 403; the number of the controllers 401 in the device may be one or more, and one controller 401 is taken as an example in fig. 5B; the controller 401, the memory 402, the input device 403 and the LED display screen device 400 in the apparatus may be connected by a bus or other means, and fig. 5B illustrates the connection by the bus.
The memory 402, which is a computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules (e.g., the brightness obtaining module 31, the determining module 32, and the driving module 33) corresponding to the display method in the embodiment of the present invention. The controller 401 executes various functional applications of the device and data processing by executing software programs, instructions, and modules stored in the memory 402, that is, implements the above-described display method.
The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 402 may further include memory located remotely from the controller 401, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 403 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the apparatus.
EXAMPLE five
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are executed by a computer processor to perform a display method for an LED display screen, where the method includes:
acquiring the brightness of the environment through a brightness sensor;
determining the wavelength of light rays required to be output by the LED display screen and a light source driving system corresponding to the wavelength light rays according to the ambient light brightness;
and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs light rays with wavelengths suitable for the ambient light brightness.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the display method provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute the display method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the display device, the included units and modules are only divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An LED display screen device, comprising:
the LED display screen is used for outputting light rays with corresponding wavelengths;
the brightness sensor is used for detecting the brightness of the environment light in front of the LED display screen;
the LED display screen comprises at least two sets of light source driving systems, wherein the light source driving systems are used for driving the LED display screen so as to enable the LED display screen to output light rays with corresponding wavelengths;
and the processor is used for determining the wavelength of the light which needs to be output by the LED display screen and the light source driving system corresponding to the wavelength of the light according to the ambient light brightness, and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs the light with the wavelength suitable for the ambient light brightness.
2. The apparatus of claim 1, wherein said at least two sets of light source drive systems comprise a scotopic vision light source drive system and a photopic vision light source drive system;
the scotopic vision light source driving system is used for driving the LED display screen to work under the control of the processor when the ambient light brightness is smaller than a first brightness threshold value, so that the LED display screen outputs light with the wavelength being a first wavelength threshold value;
the photopic vision light source driving system is used for driving the LED display screen to work under the control of the processor when the ambient light brightness is larger than a second brightness threshold value, so that the LED display screen outputs light with the wavelength being the second wavelength threshold value.
3. The apparatus of claim 2 wherein said at least two sets of light source drive systems further comprise an intermediate vision light source drive system;
the mesopic vision light source driving system is used for driving the LED display screen to work under the control of the processor when the ambient light brightness is larger than a first brightness threshold and smaller than a second brightness threshold, so that the LED display screen outputs light with the wavelength being a third wavelength threshold, and the third wavelength threshold is larger than the first wavelength threshold and smaller than the second wavelength threshold.
4. The apparatus of claim 3, wherein the mesopic vision light source driving system comprises at least a first mesopic vision light source driving system and a second mesopic vision light source driving system;
the first mesopic vision light source driving system and the second mesopic vision light source driving system correspond to different brightness thresholds and different wavelength thresholds of light, the brightness thresholds are distributed between the first brightness threshold and the second brightness threshold, and the light wavelength thresholds are distributed between the first wavelength threshold and the second wavelength threshold.
5. The apparatus according to any of claims 2-4, wherein the first luminance threshold is 3cd/m2The second luminance threshold value is 10cd/m2；
The first wavelength threshold value is 507nm, and the second wavelength threshold value is 555 nm.
6. The device of claim 5, wherein the brightness sensor is fixedly arranged in front of the LED display screen.
7. A display method applied to the LED display screen device according to any one of claims 1 to 4, comprising:
acquiring the brightness of the environment through a brightness sensor;
determining the wavelength of light rays required to be output by the LED display screen and a light source driving system corresponding to the wavelength light rays according to the ambient light brightness;
and controlling the light source driving system to drive the LED display screen to work so that the LED display screen outputs light rays with wavelengths suitable for the ambient light brightness.
8. The method of claim 7, wherein the LED display screen device comprises a scotopic vision light source drive system and a photopic vision light source drive system;
if the ambient light brightness is smaller than the first brightness threshold, the light wavelength corresponding to the ambient light brightness is a first wavelength threshold, and the light source driving system corresponding to the light wavelength is a scotopic vision light source driving system;
and if the ambient light brightness is greater than the second brightness threshold, the light wavelength corresponding to the ambient light brightness is the second wavelength threshold, and the light source driving system corresponding to the light wavelength is a photopic vision light source driving system.
9. The method of claim 8, wherein the LED display screen device further comprises an mesopic light source drive system;
if the ambient light brightness is greater than the first brightness threshold and less than the second brightness threshold, the light wavelength corresponding to the ambient light brightness is a third wavelength threshold, and the light source driving system corresponding to the light wavelength is an intermediate vision light source driving system, wherein the third wavelength threshold is greater than the first wavelength threshold and less than the second wavelength threshold.
10. A television apparatus, comprising:
the LED display screen device of any one of claims 1-6, configured to output a currently played content;
and the controller is used for determining the current playing content and controlling the LED display screen device to output the current playing content.
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