Outdoor display brightness adjusting device, method and equipment

Abstract

The invention relates to the technical field of display screens, and discloses an outdoor display brightness adjusting device, method and equipment. The method is applied to the display device, the display device comprises a plurality of display areas, each display area comprises at least two LED lamp beads, and the method comprises the steps that the external light intensity of the place where the display device is located is obtained; the rated working current corresponding to the LED lamp beads in each display area is determined; determining a corresponding current upper limit value according to the rated working current and a preset proportionality coefficient; and finally, based on the current upper limit value and the external light intensity, determining the working state corresponding to each LED lamp bead so as to adjust the display brightness of the display equipment. According to the invention, the display screen is divided into the display areas, and the current upper limit value and the working state of each lamp bead in each display area are respectively determined based on the acquired ambient light intensity, so that the brightness of the display screen is flexibly adjusted, and the problem of black screen or yellowing caused by full-load working of part of lamp beads is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to a device, method and equipment for adjusting brightness of an outdoor display. Background Art

[0002] At present, outdoor display products on the market need to be visible in the sun, so the brightness of the corresponding display is required to be high. Existing products all use increased LED power to obtain higher brightness, and at the same time increase the number of LED lamp beads to obtain higher brightness. In order to ensure visibility under sunlight, the LED lamp beads need to work at full capacity.

[0003] However, this will cause a lot of heat to be generated when the LED is working. If the heat cannot be effectively eliminated, it will affect the LCD screen of the display. Specifically, when the temperature generated by the LED reaches the maximum operating temperature of the liquid crystal molecules inside the LCD screen, the activity of the liquid crystal molecules will fail, resulting in a black screen phenomenon; at the same time, the long-term high temperature of the LED will cause the aging and yellowing of the optical film inside the liquid crystal module, resulting in abnormal display. In addition, the long-term high temperature of the LED working at high temperature for a long time will cause irreversible damage to the polarizer at the bottom and surface of the LCD screen, causing aging and hardening, affecting the display effect. Summary of the invention

[0004] In view of this, the present invention provides an outdoor display brightness adjustment device, method and equipment to solve the overheating and overload problems caused by increasing the power and number of LED lamps to improve the brightness of traditional outdoor display products.

[0005] In a first aspect, the present invention provides a display brightness control method, which is applied to a display device; the display device includes a plurality of display areas; each display area includes at least two LED lamp beads, and the method includes:

[0006] Get the external light intensity where the display device is located;

[0007] Determine the rated operating currents corresponding to at least two LED lamp beads in each display area;

[0008] Determine the current upper limit values ​​corresponding to the at least two LED lamp beads respectively according to the rated working currents corresponding to the at least two LED lamp beads respectively and the preset proportional coefficient;

[0009] Based on the current upper limit values ​​respectively corresponding to at least two LED lamp beads and according to the external light intensity, the working states respectively corresponding to at least two LED lamp beads are determined to adjust the display brightness of the display device.

[0010] The display brightness control method provided in an embodiment of the present invention divides the display screen into display areas and determines the current upper limit and working status of each lamp bead in each display area based on the acquired ambient light intensity, so as to flexibly adjust the brightness of the display screen and avoid black screen or yellowing problems caused by some lamp beads working at full load.

[0011] In an optional implementation, based on the current upper limit values ​​respectively corresponding to at least two LED lamp beads and according to the external light intensity, determining the working states respectively corresponding to at least two LED lamp beads to adjust the display brightness of the display device includes:

[0012] According to the external light intensity, determine the target display power in each display area;

[0013] Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, the working states respectively corresponding to the at least two LED lamp beads are determined.

[0014] The display brightness control method provided in the embodiment of the present invention determines the target display power according to the external light intensity, and determines the working state of the lamp beads based on the target display power, so that the sum of the display powers of at least two LED lamp beads in each display area is greater than the target display power to adapt to the external light intensity.

[0015] In an optional implementation, based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, determining the working states respectively corresponding to the at least two LED lamp beads includes:

[0016] When the target display power is greater than the current power, the sum of the current upper limit value of the currently lit LED lamp bead and the power upper limit of the currently lit LED lamp bead is obtained;

[0017] If the target display power is less than the sum of the power upper limits of the currently lit LED lamp beads, the currently lit LED lamp beads are adjusted according to the target display power.

[0018] The display brightness control method provided in the embodiment of the present invention realizes fine adjustment of the power of the display device by comparing the target display power with the sum of the power upper limits of the currently lit LED lamp beads, thereby ensuring that the power output of the display device can meet the current ambient brightness requirements without excessive consumption or causing overheating of the device.

[0019] In an optional embodiment, the method further includes: if the target display power is greater than the sum of the power upper limits of the currently lit LED lamp beads, adjusting the currently lit LED lamp beads to the current upper limit, and lighting the next LED lamp bead in a preset order.

[0020] The display brightness control method provided in the embodiment of the present invention only adjusts the power of the lit LED lamp beads to match the target display power when the target display power is less than the sum of the power upper limits of the currently lit LED lamp beads; and when the target display power is greater than the sum of the power upper limits of the currently lit LED lamp beads, the brightness requirement is met by lighting up additional LED lamp beads.

[0021] In an optional implementation, when the rated currents of at least two LED lamp beads are different;

[0022] Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, determining the working states respectively corresponding to the at least two LED lamp beads includes:

[0023] When the target display power is less than the current power, the difference between the target display power and the current power is obtained;

[0024] Get the current power of the LED bead with the largest rated current among the lit LED bead. If the difference is less than the current power of the LED bead with the largest rated current, adjust the LED bead with the largest rated current according to the target display power.

[0025] If the difference is greater than the current power of the LED lamp bead with the largest rated current, the LED lamp bead with the largest rated current is turned off, and the difference is recalculated to continue adjusting the lamp bead with the largest rated current among the lit LED lamp beads.

[0026] The display brightness control method provided by the embodiment of the present invention accurately calculates the power difference and adjusts the LED lamp beads according to a specific logic. When the difference is less than the current power of the LED lamp bead with the maximum rated current, the lamp bead with the largest rated current is adjusted; when the target display power is reduced and the difference is greater than the current power of the LED lamp bead with the maximum rated current, it is considered necessary to extinguish the LED lamp bead with the maximum rated current so that the power output of the display device is equal to the target display power.

[0027] In an optional implementation, when the rated currents of at least two LED lamp beads are the same;

[0028] Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, determining the working states respectively corresponding to the at least two LED lamp beads includes:

[0029] When the target display power is less than the current power, the difference between the target display power and the current power is obtained;

[0030] Get the current power of the LED bead with the smallest current value among the lit LED bead. If the difference is less than the current power of the LED bead with the smallest current value, adjust the LED bead with the smallest current value according to the target display power.

[0031] If the difference is greater than the current power of the LED lamp bead with the smallest current value, the LED lamp bead with the smallest current value is turned off, and the difference is recalculated to continue adjusting the LED lamp bead with the smallest current value among the lit LED lamp beads.

[0032] The display brightness control method provided in an embodiment of the present invention calculates the difference between the target display power and the current power, and adjusts the working state of the LED lamp beads based on the difference, so as to more accurately control the brightness of the display. When the difference is less than the current power of the LED lamp bead with the smallest current value, the LED lamp bead with the smallest current value is first considered for adjustment. When the difference is less than the current power of the LED lamp bead with the smallest current value, the LED lamp bead with the smallest current value is extinguished to improve the adjustment efficiency of the LED lamp beads.

[0033] In a second aspect, the present invention provides a display device, wherein the display device includes a plurality of display areas; each display area includes at least two LED lamp beads; the display device also includes:

[0034] A brightness sensor is used to obtain the external light intensity where the display device is located;

[0035] The main board is used to determine the rated working currents corresponding to the at least two LED lamp beads in each display area; determine the upper limit values ​​of the currents corresponding to the at least two LED lamp beads according to the rated working currents corresponding to the at least two LED lamp beads and the preset proportional coefficient; and generate a control signal according to the external light intensity based on the upper limit values ​​of the currents corresponding to the at least two LED lamp beads;

[0036] The LED light bar control board is used to determine the working states corresponding to the at least two LED lamp beads according to the control signal to adjust the display brightness of the display device.

[0037] In an optional embodiment, each display area includes a first lamp bead, a second lamp bead, a third lamp bead, a fourth lamp bead and a fifth lamp bead, and the second lamp bead, the third lamp bead, the fourth lamp bead and the fifth lamp bead are respectively located directly above, directly below, to the left and to the right of the first lamp bead.

[0038] In an optional embodiment, the rated currents of the first lamp bead, the second lamp bead, the third lamp bead, the fourth lamp bead and the fifth lamp bead arranged in a first order increase in sequence or are the same; each LED lamp bead in each display area lights up in a first preset order and turns off in a second preset order; the second preset order is opposite to the first preset order.

[0039] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor are communicatively connected to each other, computer instructions are stored in the memory, and the processor executes the display brightness control method of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0040] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the display brightness control method of the first aspect or any corresponding embodiment thereof.

[0041] In a fifth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the display brightness control method of the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 is a schematic flow chart of a display brightness control method according to an embodiment of the present invention;

[0044] Figure 2 is a schematic diagram of the positions of LED lamp beads in a display device according to an embodiment of the present invention;

[0045] Figure 3 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0047] At present, outdoor display products on the market need to be visible in the sun, so the brightness of the corresponding display is required to be high. Existing products all use increased LED power to obtain higher brightness, and at the same time increase the number of LED lamp beads to obtain higher brightness. In order to ensure visibility under sunlight, the LED lamp beads need to work at full capacity.

[0048] However, the inventors found that this would cause a large amount of heat to be generated when the LED is working. If the heat cannot be effectively eliminated, it will affect the LCD screen of the display. For example, when the temperature generated by the LED reaches the maximum operating temperature of the internal liquid crystal molecules of the LCD screen, the activity of the liquid crystal molecules will fail, resulting in a black screen phenomenon, affecting the use; the long-term high temperature of the LED will cause the aging and yellowing of the optical film inside the liquid crystal module, resulting in abnormal display; the long-term full-load operation of the LED lamp will affect the service life of the LED itself, causing serious brightness attenuation and affecting the use effect; the long-term high temperature operation of the LED will cause irreversible damage to the polarizer at the bottom and surface of the LCD screen, causing aging and hardening, affecting the use effect.

[0049] According to an embodiment of the present invention, an embodiment of a display brightness control method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0050] In this embodiment, a display brightness control method is provided, which can be used in the above-mentioned mobile terminal, such as a mobile phone, a tablet computer, etc. The method is applied to a display device; the display device includes a plurality of display areas; each display area includes at least two LED lamp beads, Figure 1 is a flow chart of a display brightness control method according to an embodiment of the present invention. Figure 1 As shown, the process includes the following steps:

[0051] Step S101, obtaining the external light intensity at the location of the display device.

[0052] Specifically, a number of light sensors may be added to the display device to accurately obtain the intensity and changes of external light.

[0053] Furthermore, the light sensor collects light intensity data at the location of the display device at preset time intervals, and the data includes at least one of instantaneous light intensity, average light intensity, maximum light intensity, and minimum light intensity.

[0054] Step S102, determining the rated operating currents corresponding to at least two LED lamp beads in each display area.

[0055] Specifically, you can find the rated operating current value of the LED lamp bead based on actual needs or in the specification book.

[0056] Furthermore, the rated operating current of each lamp bead can be the same or different.

[0057] Step S103, determining the current upper limit values ​​corresponding to the at least two LED lamp beads respectively according to the rated working currents corresponding to the at least two LED lamp beads respectively and the preset proportional coefficient.

[0058] Specifically, the preset proportional coefficient is used to adjust the factor of the actual working current of the LED lamp bead. The coefficient is usually determined through experimental tests or empirical values, such as 50%, 60%, etc. It takes into account multiple factors, such as the heat dissipation conditions of the LED lamp bead, the design life of the display, brightness uniformity requirements, etc.

[0059] Furthermore, based on the rated working current and the preset proportionality coefficient, the current upper limit value of the LED lamp bead is determined. For example, 80% of the rated working current can be determined as the current upper limit value to ensure that full load operation will not occur.

[0060] Step S104, based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the external light intensity, determining the working states respectively corresponding to the at least two LED lamp beads to adjust the display brightness of the display device.

[0061] Specifically, the brightness of the display in the display device is determined according to the external light intensity, and then the required display brightness is allocated to each display area. The working states corresponding to at least two LED lamp beads are determined according to the size and position of the display area and the layout of the LED lamp beads.

[0062] Furthermore, the working state includes a working current value, and the working current value is between the rated working current and the current upper limit value to ensure that the LED lamp beads emit light under safe and stable conditions.

[0063] In some optional implementations, the above step S104 includes:

[0064] According to the external light intensity, determine the target display power in each display area;

[0065] Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, the working states respectively corresponding to the at least two LED lamp beads are determined.

[0066] According to the design requirements of the display and the user's brightness preference, as well as the read external light intensity value, the target brightness is calculated and converted into the target display power of the display device.

[0067] Furthermore, the target display power of each display area is allocated to each display area to determine the actual working state of the LED lamp beads in the area, including whether there is current and the actual working current. The determined working state of the LED lamp beads is sent to the corresponding LED driving circuit through the control system of the display device. After the LED driving circuit receives the instruction, it adjusts the lamp bead current to change the brightness of the LED lamp beads so that the brightness of the display area reaches the target brightness.

[0068] In some optional implementations, the above step S104 further includes:

[0069] When the target display power is greater than the current power, the sum of the current upper limit value of the currently lit LED lamp bead and the power upper limit of the currently lit LED lamp bead is obtained;

[0070] If the target display power is less than the sum of the power upper limits of the currently lit LED lamp beads, the currently lit LED lamp beads are adjusted according to the target display power.

[0071] When the target display power is greater than the current power, the power of the LED lamp beads needs to be increased. The current power is equal to the sum of the powers of the small lamp beads in each display area. At this time, first calculate the sum of the power upper limits of the LED lamp beads that are currently on. If the target display power is less than the sum of the power upper limits of the LED lamp beads that are currently on, it means that the target display power can be achieved by increasing the power of the LED lamp beads that are currently on, for example, adjusting the operating current from 60% of the rated current to 70% without lighting up new small LED lamp beads.

[0072] In summary, the display brightness control method provided by the embodiment of the present invention collects the light intensity of the display device location by setting a light sensor, including instantaneous light intensity, average light intensity, etc. Then, the rated working current and preset proportional coefficient of each LED lamp bead are determined according to actual needs or specifications, and the current upper limit of the LED bulb is determined based on this, for example, 80% of the rated working current is used as the current upper limit to prevent the lamp bead from overheating. Then, based on the light intensity and the current upper limit of the LED lamp bead, the required display brightness is calculated, and this brightness value is allocated to each display area, that is, the target display power corresponding to each display area is calculated. When the external light is enhanced, resulting in the target display power being greater than the current power, the system will first calculate the sum of the power upper limits of the currently lit LED lamp beads. If the target display power is less than this upper limit, the system will adjust the working current of the currently lit LED lamp beads, for example, increase the rated current of some LED lamp beads from 60% to 70%, to improve the overall brightness without turning on new LED lamp beads. Finally, through the control system of the display device, these determined LED lamp bead working states will be sent to the corresponding LED driving circuit. The driving circuit will adjust the current of each LED lamp bead according to the received instructions, thereby accurately controlling the brightness of the display area to achieve the preset target brightness value.

[0073] In some optional embodiments, the method further includes: if the target display power is greater than the sum of the power upper limits of the currently lit LED lamp beads, adjusting the currently lit LED lamp beads to the current upper limit, and lighting the next LED lamp bead in a preset order.

[0074] If the target display power is greater than the sum of the power upper limits of the currently lit LED lamp beads, it means that only adjusting the existing already lit LED lamp beads cannot meet the needs, so it is necessary to light up the next new LED lamp bead according to the preset order and adjust the previously lit LED lamp beads to the current upper limit.

[0075] Optionally, the newly lit LED lamp bead starts from an initial operating current and gradually increases, for example, the initial operating current is 50% of the rated operating current, and then increases to 60% of the rated operating current until the current upper limit value is reached, for example, 80% of the rated current.

[0076] In some optional embodiments, when the rated currents of at least two LED lamp beads are different;

[0077] Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, determining the working states respectively corresponding to the at least two LED lamp beads includes:

[0078] When the target display power is less than the current power, the difference between the target display power and the current power is obtained;

[0079] Get the current power of the LED bead with the largest rated current among the lit LED bead. If the difference is less than the current power of the LED bead with the largest rated current, adjust the LED bead with the largest rated current according to the target display power.

[0080] If the difference is greater than the current power of the LED lamp bead with the largest rated current, the LED lamp bead with the largest rated current is turned off, and the difference is recalculated to continue adjusting the lamp bead with the largest rated current among the lit LED lamp beads.

[0081] When the rated operating currents of the LED lamp beads in the display area are different, and when the target display power is less than the current power of the display, it means that the brightness of the display device needs to be reduced. Therefore, the difference between the target display power and the current power is first calculated. The difference is used to represent the total power that needs to be reduced. The system will compare the power difference with the power of the LED lamp bead with the largest rated current in the current working state. The reason why the adjustment logic chooses the LED lamp bead with the largest power is based on adjustment efficiency considerations. If the power difference is less than the current power of the LED lamp bead, the system will reduce the power by reducing the operating current of the LED lamp bead, but not exceeding its current lower limit, until the reduced power is equal to the power difference. If the power difference is greater than the current power of the LED lamp bead, it means that the target display power cannot be fully achieved by adjusting this LED lamp bead alone, so the system will turn off this LED lamp bead and subtract its power from the current power. After turning off the LED bead with the largest rated current, the system will recalculate the power difference, that is, the difference between the new target display power and the new current power. The system will again identify the LED bead with the largest rated current among the currently lit LEDs and repeat the above adjustment process until the power difference is completely eliminated.

[0082] In some optional embodiments, when the rated currents of at least two LED lamp beads are the same;

[0083] Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, determining the working states respectively corresponding to the at least two LED lamp beads includes:

[0084] When the target display power is less than the current power, the difference between the target display power and the current power is obtained;

[0085] Get the current power of the LED bead with the smallest current value among the lit LED bead. If the difference is less than the current power of the LED bead with the smallest current value, adjust the LED bead with the smallest current value according to the target display power.

[0086] If the difference is greater than the current power of the LED lamp bead with the smallest current value, the LED lamp bead with the smallest current value is turned off, and the difference is recalculated to continue adjusting the LED lamp bead with the smallest current value among the lit LED lamp beads.

[0087] When the target display power is less than the current power of the display, it means that the brightness of the display device needs to be reduced. Therefore, the difference between the target display power and the current power is first calculated. The difference is used to characterize the total power that needs to be reduced, but because of the LED lamp beads, among all the currently lit LED lamp beads, the system will identify the one with the smallest operating current. Since all LED lamp beads have the same rated current, but the actual operating current may be different, because when the next lamp bead is lit in the preset order, the previously lit LED lamp beads must all be adjusted to the current upper limit, so the LED lamp bead with the lowest current operating current, that is, the lowest brightness, is found as the target lamp bead for adjustment, because this lamp bead is the latest to be lit.

[0088] Compare the difference with the power of the LED bead with the smallest working current in the current working state. If the power difference is less than the current power of the LED bead, reduce the working current of the LED bead, but not less than its allowed minimum working current to reduce the power until the reduced power is equal to the power difference. If the power difference is greater than the current power of the LED bead, it means that the target display power cannot be fully achieved by adjusting this LED bead alone, so the system will turn off this LED bead and subtract its power from the current power. After turning off the LED bead with the smallest working current, the system will recalculate the power difference, that is, the difference between the new target display power and the new current power. Then, the system will identify the LED bead with the smallest working current among the currently lit LED bead again, and repeat the above adjustment process until the power difference is completely eliminated.

[0089] The present invention provides a display device, which includes a plurality of display areas; each display area includes at least two LED lamp beads; the display device also includes:

[0090] A brightness sensor is used to obtain the external light intensity where the display device is located;

[0091] The main board is used to determine the rated working currents corresponding to the at least two LED lamp beads in each display area; determine the upper limit values ​​of the currents corresponding to the at least two LED lamp beads according to the rated working currents corresponding to the at least two LED lamp beads and the preset proportional coefficient; and generate a control signal according to the external light intensity based on the upper limit values ​​of the currents corresponding to the at least two LED lamp beads;

[0092] The LED light bar control board is used to determine the working states corresponding to the at least two LED lamp beads according to the control signal to adjust the display brightness of the display device.

[0093] The brightness sensor collects light intensity through the photosensitive holes on the display device and generates a signal to transmit to the mainboard.

[0094] The main board is used to determine the rated operating currents corresponding to at least two LED lamp beads in each display area; determine the current upper limit values ​​corresponding to at least two LED lamp beads according to the rated operating currents corresponding to at least two LED lamp beads and a preset proportional coefficient; based on the current upper limit values ​​corresponding to at least two LED lamp beads, generate a control signal to the LED light strip control board according to the external light intensity.

[0095] The LED light bar control board controls the LED working sequence according to the light signal given by the main board.

[0096] In some optional embodiments, each display area includes a first lamp bead, a second lamp bead, a third lamp bead, a fourth lamp bead and a fifth lamp bead, and the second lamp bead, the third lamp bead, the fourth lamp bead and the fifth lamp bead are respectively located directly above, directly below, to the left and to the right of the first lamp bead.

[0097] like Figure 2 As shown, the LED lamp beads in each display area are distributed in a plum blossom shape. Here, 5 LED lamp beads are taken as an example, namely the first lamp bead, the second lamp bead, the third lamp bead, the fourth lamp bead and the fifth lamp bead, which are respectively located directly above, directly below, to the left and to the right of the first lamp bead.

[0098] In some optional embodiments, the rated currents of the first lamp bead, the second lamp bead, the third lamp bead, the fourth lamp bead and the fifth lamp bead arranged in the first order increase in sequence or are the same; each LED lamp bead in each display area lights up in a first preset order and turns off in a second preset order; the second preset order is opposite to the first preset order.

[0099] In an optional embodiment, when the external light intensity increases, the first to fifth lamp beads are lit up in sequence, and after each lamp bead is lit up, the current is gradually adjusted from the initial current to the current upper limit, and then the next LED lamp bead is lit in a preset order. Therefore, this process is specifically manifested as lighting up the first lamp bead first, and the current of the first lamp bead is gradually increased from the initial current to the current upper limit, for example, from 50% of the rated working current to 80%, and then the second lamp bead is lit, and the second lamp bead is also gradually adjusted from the initial current to the current upper limit, and then the third lamp bead is lit, and so on.

[0100] Each LED lamp bead is extinguished in a second preset order. The control logic of the second preset order is opposite to the first order mentioned above. Specifically, the fifth lamp bead is first extinguished after the current upper limit is reduced to the initial current, and then the fourth lamp bead is extinguished after the current upper limit is reduced to the initial current, and so on.

[0101] In an optional implementation, the first lamp bead only reduces the brightness with reference to the external light intensity but does not turn off completely to ensure the normal use of the display.

[0102] The embodiment of the present invention also provides a computer device, see Figure 3 , Figure 3 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 3 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 3 A processor 10 is taken as an example.

[0103] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0104] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0105] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0106] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0107] The computer device also includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 may be connected via a bus or other means. Figure 3 The example of connecting through bus is taken in the following.

[0108] The input device 30 can receive input digital or character information, and generate key signal input related to the user settings and function control of the computer device, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, an indicator bar, one or more mouse buttons, a trackball, a joystick, etc. The output device 40 may include a display device, an auxiliary lighting device (e.g., an LED) and a tactile feedback device (e.g., a vibration motor), etc. The above-mentioned display device includes but is not limited to a liquid crystal display, a light emitting diode, a display and a plasma display. In some optional embodiments, the display device can be a touch screen.

[0109] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0110] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0111] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A display brightness control method, characterized in that: The method is applied to a display device; the display device includes a plurality of display areas; each display area includes at least two LED lamp beads; The method comprises: Get the external light intensity where the display device is located; Determine the rated operating currents corresponding to at least two LED lamp beads in each display area; Determine the current upper limit values ​​corresponding to the at least two LED lamp beads respectively according to the rated working currents corresponding to the at least two LED lamp beads respectively and the preset proportional coefficient; Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the external light intensity, the working states respectively corresponding to the at least two LED lamp beads are determined to adjust the display brightness of the display device.

2. The method according to claim 1, characterized in that The method of determining the working states of the at least two LED lamp beads respectively corresponding to the at least two LED lamp beads according to the external light intensity based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads to adjust the display brightness of the display device includes: Determining a target display power in each display area according to the ambient light intensity; Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, the working states respectively corresponding to the at least two LED lamp beads are determined.

3. The method according to claim 2, characterized in that The determining the working states respectively corresponding to the at least two LED lamp beads based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads according to the target display power includes: When the target display power is greater than the current power, the sum of the current upper limit value of the currently lit LED lamp bead and the power upper limit of the currently lit LED lamp bead is obtained; If the target display power is less than the sum of the power upper limits of the currently lit LED lamp beads, the currently lit LED lamp beads are adjusted according to the target display power.

4. The method according to claim 3, characterized in that The method further includes: if the target display power is greater than the sum of the power upper limits of the currently lit LED lamp beads, adjusting the currently lit LED lamp beads to the current upper limit, and lighting the next LED lamp bead in a preset order.

5. The method according to claim 2, characterized in that: When the rated currents of the at least two LED lamp beads are different; Based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads and according to the target display power, determining the working states respectively corresponding to the at least two LED lamp beads includes: When the target display power is less than the current power, obtaining a difference between the target display power and the current power; Obtain the current power of the LED lamp bead with the largest rated current among the lit LED lamp bead, and if the difference is less than the current power of the LED lamp bead with the largest rated current, adjust the LED lamp bead with the largest rated current according to the target display power; If the difference is greater than the current power of the LED lamp bead with the largest rated current, the LED lamp bead with the largest rated current is turned off, and the difference is recalculated to continue adjusting the lamp bead with the largest rated current among the lit LED lamp beads.

6. The method according to claim 2, characterized in that When the rated currents of the at least two LED lamp beads are the same; The determining the working states respectively corresponding to the at least two LED lamp beads based on the current upper limit values ​​respectively corresponding to the at least two LED lamp beads according to the target display power includes: When the target display power is less than the current power, obtaining a difference between the target display power and the current power; Obtaining the current power of the LED lamp bead with the smallest current value among the lit LED lamp beads, and if the difference is less than the current power of the LED lamp bead with the smallest current value, adjusting the LED lamp bead with the smallest current value according to the target display power; If the difference is greater than the current power of the LED lamp bead with the smallest current value, the LED lamp bead with the smallest current value is turned off, and the difference is recalculated to continue adjusting the LED lamp bead with the smallest current value among the lit LED lamp beads.

7. A display device, characterized in that: The display device includes a plurality of display areas; each display area includes at least two LED lamp beads; the display device also includes: A brightness sensor is used to obtain the external light intensity where the display device is located; The main board is used to determine the rated working currents respectively corresponding to the at least two LED lamp beads in each display area; determine the current upper limits respectively corresponding to the at least two LED lamp beads according to the rated working currents respectively corresponding to the at least two LED lamp beads and a preset proportional coefficient; and generate a control signal according to the external light intensity based on the current upper limits respectively corresponding to the at least two LED lamp beads; The LED light bar control board is used to determine the working states corresponding to the at least two LED lamp beads according to the control signal to adjust the display brightness of the display device.

8. The device according to claim 7, characterized in that Each of the display areas includes a first lamp bead, a second lamp bead, a third lamp bead, a fourth lamp bead and a fifth lamp bead, and the second lamp bead, the third lamp bead, the fourth lamp bead and the fifth lamp bead are respectively located directly above, directly below, to the left and to the right of the first lamp bead.

9. The device according to claim 8, characterized in that The rated currents of the first lamp bead, the second lamp bead, the third lamp bead, the fourth lamp bead and the fifth lamp bead arranged in the first order are increased in sequence or are the same; the LED lamp beads in each display area are lit in the first preset order and turned off in the second preset order; The second preset order is opposite to the first preset order.

10. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the display brightness control method according to any one of claims 1 to 6 by executing the computer instructions.

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