Backlight processing device, backlight control device, and liquid crystal control device

Abstract

The application discloses a backlight processing device, a backlight control device and a liquid crystal control device, relates to the technical field of display panel control, and mainly aims to prolong the service life of a display panel. The backlight processing device comprises a processing module, which is used for reducing the light-emitting voltage of a first light-emitting device based on the current cumulative use data of the first light-emitting device sent by a backlight control device, wherein the first light-emitting device is a light-emitting device determined by the backlight control device to have a risk of attenuation; and a feedback module, which is used for feeding back the reduced light-emitting voltage to the backlight control device, so that the backlight control device performs light-emitting control on the first light-emitting device based on the reduced light-emitting voltage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display panel control, in particular to a backlight processing device, a backlight control device and a liquid crystal control device. BACKGROUND

[0002] With the rapid development of MiniLED backlight technology, MiniLED backlight sources are widely used in display panels. MiniLED backlight technology usually uses an LED (light-emitting diode) array as a backlight source.

[0003] The LED array is composed of a large number of LED lamps. During the use of the display panel, the following two situations may occur: first, the dense arrangement of LED lamps in the LED array may cause poor heat dissipation of the LED lamps; second, the LED lamps in the LED array have large differences in their respective light-emitting voltages when working, and such differences may cause uneven wear of the LED lamps. The above two situations may cause some LED lamps in the LED array to have serious performance degradation or even be directly damaged, relative to other LED lamps.

[0004] The serious performance degradation or damage of the local light-emitting devices in the LED array may cause uneven display of the display panel, affecting the viewing effect. Moreover, when the local LED in the LED array has serious performance degradation or is damaged, the service life of the display panel will be terminated. SUMMARY

[0005] Therefore, the present application provides a backlight processing device, a backlight control device and a liquid crystal control device, which mainly aims to prolong the service life of the display panel.

[0006] In order to achieve the above purpose, the present application mainly provides the following technical solutions:

[0007] In a first aspect, the present application provides a backlight processing device, which comprises:

[0008] a processing module configured to reduce the light-emitting voltage of a first light-emitting device based on current cumulative use data of the first light-emitting device sent by a backlight control device, wherein the first light-emitting device is a light-emitting device determined by the backlight control device to have a risk of degradation;

[0009] a feedback module configured to feed back the reduced light-emitting voltage to the backlight control device, so that the backlight control device performs light-emitting control on the first light-emitting device based on the reduced light-emitting voltage.

[0010] The backlight processing device provided in the application, when the first light emitting device in the display panel has a risk of attenuation, adjusts the light emitting voltage of the first light emitting device based on the current cumulative use data of the first light emitting device, and feeds back the adjusted light emitting voltage to the backlight control device, so that the backlight control device controls the light emitting of the first light emitting device based on the adjusted light emitting voltage. The performance attenuation of the light emitting device occurs with its use, and the current cumulative use data of the light emitting device can reflect the performance attenuation of the light emitting device, so that the adjustment of the light emitting voltage of the first light emitting device based on the current cumulative use data of the first light emitting device can reduce the loss of the light emitting voltage to the first light emitting device, thereby slowing down the performance attenuation of the first light emitting device, and prolonging the service life of the display panel.

[0011] In some embodiments, the processing module is further configured to send the position information and the current cumulative use data of the first light emitting device to the liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the first light emitting device based on the position information, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data, so as to increase the liquid crystal aperture ratio.

[0012] In some embodiments, the processing module is further configured to: select a second light emitting device based on the position of the first light emitting device in the array of light emitting devices, wherein the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located; adjust the light emitting voltage of the second light emitting device based on the current cumulative use data, and feed back the adjusted light emitting voltage to the backlight control device, so that the backlight control device controls the light emitting of the second light emitting device based on the adjusted light emitting voltage.

[0013] In some embodiments, the processing module is further configured to: send the current cumulative use data and the position information of the second light emitting device to the liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the second light emitting device based on the position information, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data, so as to decrease the liquid crystal aperture ratio.

[0014] In some embodiments, the processing module is further configured to: select a third light emitting device based on the position of the first light emitting device in the array of light emitting devices, wherein the third light emitting device is in the same target region as the first light emitting device and surrounds the first light emitting device; determine a voltage adjustment gradient based on the current cumulative usage data; and adjust the light emitting voltage of the third light emitting device in a gradient manner from the outermost third light emitting device in the target region towards the first light emitting device based on the voltage adjustment gradient, and feed back the adjusted light emitting voltage to the backlight control device for light emitting control of the third light emitting device based on the adjusted light emitting voltage.

[0015] In some embodiments, the processing module is further configured to: determine whether the current display of the display panel is a dynamic picture; and if so, select a third light emitting device based on the position of the first light emitting device in the array of light emitting devices.

[0016] In some embodiments, the processing module is further configured to: determine whether the current display of the display panel is a static picture; and if so, send the current cumulative usage data and the position information to the liquid crystal control device.

[0017] In a second aspect, the present application provides a backlight control device, comprising:

[0018] a determining module configured to, when determining that a light emitting device is a first light emitting device at risk of attenuation based on the current cumulative usage data of the light emitting device, send the current cumulative usage data of the first light emitting device to a backlight processing device, so that the backlight processing device adjusts the light emitting voltage of the first light emitting device based on the current cumulative usage data;

[0019] a control module configured to control the light emitting of the first light emitting device based on the adjusted light emitting voltage fed back by the backlight processing device.

[0020] The backlight control device provided in the application, when determining that the light emitting device is the first light emitting device with a risk of attenuation based on the current cumulative use data of the light emitting device, sends the current cumulative use data of the first light emitting device to the backlight processing device, so that the backlight processing device reduces the light emitting voltage of the first light emitting device based on the current cumulative use data. After receiving the reduced light emitting voltage fed back by the backlight processing device, the first light emitting device is controlled to emit light based on the reduced light emitting voltage. The performance attenuation of the light emitting device occurs with its use, and the current cumulative use data of the light emitting device can reflect the performance attenuation of the light emitting device. Therefore, the light emitting voltage of the first light emitting device is reduced according to the current cumulative use data of the first light emitting device, which can reduce the loss of the first light emitting device caused by the light emitting voltage, thereby slowing down the performance attenuation of the first light emitting device, and prolonging the service life of the display panel.

[0021] In some embodiments, the determination module is specifically configured to: for each light emitting device, determine whether at least one use data in the current cumulative use data of the light emitting device reaches a corresponding attenuation threshold; and if so, determine the light emitting device as the first light emitting device.

[0022] In some embodiments, the determination module is further configured to: after determining the light emitting device as the first light emitting device, determine all light emitting devices belonging to the same backlight subregion as the light emitting device as the first light emitting device.

[0023] In some embodiments, the current cumulative use data includes at least one of the following use data: a time length of cumulative light emission of the light emitting device, a cumulative number of times of turning on and off of the light emitting device, and a cumulative number of times of light emission of the light emitting device under a target voltage driving; wherein the target voltage is a light emitting voltage greater than a voltage threshold.

[0024] In a third aspect, the application provides a liquid crystal control device, which comprises:

[0025] The adjustment module is configured to determine a liquid crystal module opposite to the first light emitting device based on the position information of the first light emitting device sent by the backlight processing device, and increase a driving voltage of the liquid crystal module based on the current cumulative use data of the first light emitting device sent by the backlight processing device, so as to increase the liquid crystal aperture ratio; wherein the first light emitting device is the light emitting device with a risk of attenuation determined by the backlight control device.

[0026] The liquid crystal control device provided in the application determines the liquid crystal module opposite to the first light emitting device based on the position information of the first light emitting device sent by the backlight processing device, and increases the driving voltage of the liquid crystal module based on the current cumulative use data of the first light emitting device sent by the backlight processing device, so as to increase the liquid crystal aperture ratio. It can be seen that, since the driving voltage is increased, the liquid crystal aperture ratio is increased, so that the light transmittance of the first light emitting device corresponding position is increased, thereby solving the problem of uneven display of the picture caused by reducing the light emitting voltage of the first light emitting device.

[0027] In some embodiments, the adjusting module is further configured to: determine the liquid crystal module opposite to the second light emitting device based on the position information of the second light emitting device sent by the backlight processing device, and reduce the driving voltage of the liquid crystal module opposite to the second light emitting device based on the current cumulative use data, wherein the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located.

[0028] In the fourth aspect, the application provides a backlight adjusting system, which comprises the backlight processing device of the first aspect and the backlight control device of the second aspect.

[0029] In some embodiments, the backlight adjusting system further comprises the liquid crystal control device of the third aspect.

[0030] In the fifth aspect, the application provides a display panel, which comprises the backlight adjusting system of the fourth aspect.

[0031] In the sixth aspect, the application provides a backlight processing method, which comprises:

[0032] reducing the light emitting voltage of the first light emitting device based on the current cumulative use data of the first light emitting device sent by the backlight control device, wherein the first light emitting device is the light emitting device determined by the backlight control device to have a risk of attenuation;

[0033] feeding back the reduced light emitting voltage to the backlight control device, so that the backlight control device performs light emitting control on the first light emitting device based on the reduced light emitting voltage.

[0034] In the seventh aspect, the application provides a backlight control method, which comprises:

[0035] when determining that the light emitting device is the first light emitting device having a risk of attenuation based on the current cumulative use data of the light emitting device, sending the current cumulative use data of the first light emitting device to the backlight processing device, so that the backlight processing device reduces the light emitting voltage of the first light emitting device based on the current cumulative use data;

[0036] The first light emitting device is controlled to emit light based on the reduced light emitting voltage fed back by the backlight processing apparatus.

[0037] In an eighth aspect, the present application provides a liquid crystal control method, comprising:

[0038] A liquid crystal module opposite to the first light emitting device is determined based on the position information of the first light emitting device sent by the backlight processing apparatus, wherein the first light emitting device is the light emitting device determined by the backlight control apparatus to have a risk of attenuation;

[0039] The driving voltage of the liquid crystal module is increased based on the current cumulative use data of the first light emitting device sent by the backlight processing apparatus.

[0040] In a ninth aspect, the present application provides a computer readable storage medium, comprising a stored program, wherein when the program is run, the device where the storage medium is located is controlled to execute at least one of the following methods: the backlight processing method of the sixth aspect, the backlight control method of the seventh aspect, and the liquid crystal control method of the eighth aspect.

[0041] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0043] Figure 1 The structure schematic diagram of a backlight processing apparatus provided by an embodiment of the present application is shown;

[0044] Figure 2 The structure schematic diagram of a backlight processing apparatus provided by another embodiment of the present application is shown;

[0045] Figure 3 The arrangement schematic diagram of a light emitting device in a light emitting device array provided by an embodiment of the present application is shown;

[0046] Figure 4 The arrangement schematic diagram of a light emitting device in a light emitting device array provided by another embodiment of the present application is shown;

[0047] Figure 5 Fig. 1 shows a structural schematic diagram of a backlight control device according to an embodiment of the present application;

[0048] Figure 6 Fig. 2 shows a structural schematic diagram of a liquid crystal control device according to an embodiment of the present application;

[0049] Figure 7 Fig. 3 shows a schematic diagram of a liquid crystal module according to an embodiment of the present application;

[0050] Figure 8 Fig. 4 shows a structural schematic diagram of a backlight adjustment system according to an embodiment of the present application;

[0051] Figure 9 Fig. 5 shows a structural schematic diagram of a backlight adjustment system according to another embodiment of the present application;

[0052] Figure 10 Fig. 6 shows a structural schematic diagram of a backlight adjustment system according to yet another embodiment of the present application;

[0053] Figure 11 Fig. 7 shows a flow chart of a backlight processing method according to another embodiment of the present application;

[0054] Figure 12 Fig. 8 shows a flow chart of a backlight control method according to another embodiment of the present application;

[0055] Figure 13 Fig. 9 shows a flow chart of a liquid crystal control method according to another embodiment of the present application. DETAILED DESCRIPTION

[0056] Exemplary embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0057] The light emitting device array as a backlight source of a display panel is composed of a plurality of light emitting devices. During the use of the display panel, the light emitting devices can have the following two situations: first, the dense arrangement of the light emitting devices in the light emitting device array can result in poor heat dissipation of the light emitting devices; second, the light emitting devices in the light emitting device array have large differences in their respective light emitting voltages when working, and such differences can cause uneven wear of the light emitting devices. The above two situations can cause some light emitting devices in the light emitting device array to have serious performance degradation, or even be directly damaged, relative to other light emitting devices.

[0058] The performance of the local light emitting device in the array of light emitting devices is severely attenuated or damaged, which can cause the display panel to display unevenly and affect the viewing effect. When the performance of the local light emitting device in the array of light emitting devices is severely attenuated or damaged, the service life of the display panel will be terminated, and the display panel will be replaced or discarded.

[0059] According to the above analysis, the service life of the display panel is limited to a certain extent by the attenuation of the light emitting device. The service life of the display panel can be prolonged by delaying the performance attenuation of the light emitting device. Therefore, the embodiments of the present application provide a backlight processing device, a backlight control device and a liquid crystal control device to determine whether the light emitting device has an attenuation risk based on the current cumulative use data of the light emitting device, and to reduce the attenuation loss of the light emitting voltage to the light emitting device by reducing the light emitting voltage of the light emitting device when it is determined that the light emitting device has an attenuation risk, thereby prolonging the service life of the light emitting device and prolonging the service life of the display panel.

[0060] The embodiments of the present application achieve the reduction of the attenuation loss of the light emitting voltage to the light emitting device through the interaction of the backlight control device and the backlight processing device. Specifically, the backlight control device provided by the embodiments of the present application is mainly used to determine which light emitting device in the display panel is the first light emitting device that has an attenuation risk based on the current cumulative use data of the light emitting device, and to provide the current cumulative use data of the determined first light emitting device to the backlight processing device, so that the backlight processing device reduces the light emitting voltage of the first light emitting device based on the current cumulative use data. The backlight control device controls the light emitting of the first light emitting device based on the reduced light emitting voltage fed back by the backlight processing device. The backlight processing device provided by the embodiments of the present application is mainly used to reduce the light emitting voltage of the first light emitting device based on the current cumulative use data of the first light emitting device that has an attenuation risk sent by the backlight control device, and to feed back the reduced light emitting voltage to the backlight control device, so that the backlight control device controls the light emitting of the first light emitting device based on the reduced light emitting voltage.

[0061] In order to reduce the attenuation loss of the light emitting voltage to the light emitting device, prolong the service life of the display panel, and ensure the uniformity of the display panel at the same time, the embodiments of the present application provide a liquid crystal control device. The liquid crystal control device is mainly used to determine the liquid crystal module opposite to the position of the first light emitting device based on the position information of the first light emitting device sent by the backlight processing device, and to increase the driving voltage of the liquid crystal module based on the current cumulative use data of the first light emitting device sent by the backlight processing device, so as to increase the liquid crystal aperture ratio and increase the light transmittance, thereby reducing the influence of the reduced light emitting voltage of the light emitting device on the display uniformity.

[0062] The backlight processing device, the backlight control device and the liquid crystal control device provided by the embodiments of the present application can be applied to any display panel which needs to prolong the service life. The display panel applying the backlight processing device, the backlight control device and the liquid crystal control device provided by the embodiments of the present application can prolong the service life, and thus can improve the market competitiveness of the display panel.

[0063] In addition, the backlight processing device, the backlight control device and the liquid crystal control device provided by the embodiments of the present application can be realized by three independent chips or one integrated chip when applied to the display panel. For example, the backlight control device is realized by an LED control chip, the backlight processing device is realized by an LDC algorithm chip, and the liquid crystal control device is realized by a timing driving chip. The timing driving chip mentioned herein is a TCON chip.

[0064] The backlight processing device, the backlight control device and the liquid crystal control device provided by the embodiments of the present application will be described in detail below.

[0065] As shown in Figure 1 The backlight processing device provided by the embodiments of the present application includes a processing module 11 and a feedback module 12.

[0066] The processing module 11 is configured to reduce the light emitting voltage of the first light emitting device based on the current cumulative use data of the first light emitting device sent by the backlight control device, wherein the first light emitting device is the light emitting device determined by the backlight control device to have a risk of decay.

[0067] The feedback module 12 is configured to feed back the reduced light emitting voltage to the backlight control device, so that the backlight control device performs light emitting control on the first light emitting device based on the reduced light emitting voltage.

[0068] The specific structure and interaction relationship of each module involved in the backlight processing device will be described in detail below.

[0069] The processing module 11 includes:

[0070] The processing module 11 is mainly configured to reduce the light emitting voltage of the first light emitting device based on the current cumulative use data of the first light emitting device, so as to reduce the performance loss of the light emitting device caused by the light emitting voltage, thereby delaying the performance decay of the first light emitting device, and further prolonging the service life of the display panel. The first light emitting device mentioned herein is the light emitting device in the light emitting device array which has a risk of decay, and it is determined by the backlight control device based on the current cumulative use data of each light emitting device in the light emitting device array.

[0071] The technical solution that the processing module 11 reduces the light-emitting voltage of the first light-emitting device based on the current cumulative use data of the first light-emitting device is described below. Specifically, the processing module 11 determines a first compensation value corresponding to the current cumulative use data, and reduces the light-emitting voltage of the first light-emitting device based on the first compensation value. When reducing the light-emitting voltage of the first light-emitting device, the light-emitting voltage of the first light-emitting device under the current display frame is first determined, and then the determined light-emitting voltage is reduced by using the first compensation value. The reduced light-emitting voltage of the first light-emitting device can be represented by the following formula: T = V-A, where T represents the reduced light-emitting voltage of the first light-emitting device, V represents the light-emitting voltage of the first light-emitting device, and A represents the first compensation value.

[0072] For example, the light-emitting voltage of the first light-emitting device under the current display frame is 5 volts, and the first compensation value is 0.5 volts. After reducing the light-emitting voltage of the first light-emitting device based on the first compensation value, the light-emitting voltage of the first light-emitting device becomes 4.5 volts.

[0073] The determination method of the first compensation value described herein includes the following two methods: one is based on a preset first correspondence relationship. The first correspondence relationship is a correspondence relationship between a plurality of cumulative use data and a plurality of first compensation values which are pre-calibrated. The other is to input the current cumulative use data into a first model for identifying the first compensation value to identify the result as the first compensation value, wherein the first model is pre-trained and is a model for identifying the first compensation value based on the cumulative use data. For example, the first model can be a neural network model.

[0074] The feedback module 12:

[0075] The feedback module 12 is mainly used to feed back the reduced light-emitting voltage to the backlight control device, so that the backlight control device can perform light-emitting control on the first light-emitting device based on the reduced light-emitting voltage, thereby reducing the performance loss of the light-emitting device caused by the light-emitting voltage.

[0076] When the feedback module 12 feeds back the reduced light-emitting voltage to the backlight control device, it will indicate which light-emitting device the reduced light-emitting voltage is used for, so that the backlight control device can accurately perform light-emitting control on the light-emitting device.

[0077] The backlight processing apparatus provided by the embodiments of the present application can reduce the performance degradation loss of the first light emitting device caused by the light emitting voltage, prolong the service life of the first light emitting device, and slow down the performance degradation of the first light emitting device, thereby prolonging the service life of the display panel.

[0078] In some embodiments of the present application, in order to reduce the performance degradation loss of the light emitting device caused by the light emitting voltage, prolong the service life of the display panel, and ensure the uniformity of the picture display of the display panel, the technical solution for maintaining the uniformity of the picture display of the display panel provided by the backlight processing apparatus includes the following three kinds:

[0079] The first kind, in some embodiments of the present application, as shown in Figure 2 The processing module 11 includes:

[0080] The first sending unit 111 is configured to send the position information and the current cumulative use data of the first light emitting device to the liquid crystal control device, so that the liquid crystal control device determines the liquid crystal module opposite to the position of the first light emitting device based on the position information, and increases the driving voltage of the liquid crystal module based on the current cumulative use data, so as to increase the liquid crystal aperture ratio.

[0081] After the processing module 11 reduces the light emitting voltage of the first light emitting device based on the current cumulative use data, although the performance loss of the first light emitting device caused by the light emitting voltage can be reduced, the service life of the first light emitting device can be prolonged, but the brightness of the first light emitting device will be dimmed, which will cause the picture display to be uneven and affect the picture display effect. Therefore, in order not to affect the uniformity of the picture display when the light emitting voltage of the first light emitting device is reduced, the first sending unit 111 sends the position information and the current cumulative use data of the first light emitting device to the liquid crystal control device. The position information is used to limit the position of the first light emitting device in the light emitting device array. The liquid crystal control device is used to determine the driving voltage of the liquid crystal module in the display panel, and the driving voltage is used to drive the liquid crystal deflection.

[0082] The liquid crystal control device determines a liquid crystal module opposite to the first light emitting device based on the position information after receiving the position information and the current cumulative use data of the first light emitting device, and increases the driving voltage of the liquid crystal module based on the current cumulative use data of the first light emitting device to increase the liquid crystal aperture ratio, thereby improving the light transmittance of the position corresponding to the first light emitting device, and further improving the brightness at the position corresponding to the first light emitting device, and maintaining the uniformity of the display brightness of the picture.

[0083] Secondly, in some embodiments of the present application, as shown in Figure 2 The processing module 11 includes:

[0084] The first selecting unit 112 is configured to select a second light emitting device based on the position of the first light emitting device in the array of light emitting devices, wherein the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located.

[0085] The first adjusting unit 113 is configured to increase the light emitting voltage of the second light emitting device based on the current cumulative use data, and feed back the increased light emitting voltage to the backlight control device, so that the backlight control device controls the light emitting of the second light emitting device based on the increased light emitting voltage.

[0086] The first selecting unit 112 and the first adjusting unit 113 can perform the above-mentioned interactive action in the following two cases:

[0087] Case one, the above-mentioned interactive action is performed after the light emitting voltage of the first light emitting device is decreased based on the current cumulative use data.

[0088] In the case that the light emitting voltage of the first light emitting device is decreased based on the current cumulative use data, the brightness of the first light emitting device will be dimmed, which will cause the picture display to be uneven and affect the picture display effect. Therefore, in order to compensate for the light at the position corresponding to the first light emitting device and make the picture brightness uniform, the first selecting unit 112 selects a second light emitting device based on the position of the first light emitting device in the array of light emitting devices. The first adjusting unit 113 increases the light emitting voltage of the second light emitting device based on the current cumulative use data, so that when the backlight control device controls the light emitting of the second light emitting device based on the increased light emitting voltage, the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located, thereby improving the brightness of the area where the first light emitting device is located and solving the problem of uneven picture display caused by decreasing the light emitting voltage of the first light emitting device.

[0089] Case two, the above-mentioned interactive action is performed after the light emitting voltage of the first light emitting device is decreased based on the current cumulative use data, and the driving voltage of the liquid crystal module opposite to the first light emitting device is increased based on the current cumulative use data by the liquid crystal control device.

[0090] Although the liquid crystal control device increases the driving voltage of the liquid crystal module opposite to the position of the first light emitting device, the liquid crystal aperture ratio of the liquid crystal module opposite to the position of the first light emitting device is increased, so that the light transmittance of the corresponding position is improved, and the brightness of the corresponding position is improved. However, there may still be a case of insufficient brightness, so in order to further ensure the brightness uniformity of the picture display, the light at the position corresponding to the first light emitting device needs to be further supplemented, so that the picture brightness display is uniform. Therefore, the first selection unit 112 selects the second light emitting device based on the position of the first light emitting device in the light emitting device array. The first adjusting unit 113 increases the light emitting voltage of the second light emitting device based on the current cumulative use data, so that when the backlight control device controls the light emission of the second light emitting device based on the increased light emitting voltage, the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located, thereby improving the brightness of the area where the first light emitting device is located, and solving the problem of uneven picture display caused by reducing the light emitting voltage of the first light emitting device.

[0091] In some embodiments of the present application, as shown in Figure 2 The processing module 11 includes a second sending unit 114 for sending the current cumulative use data and the position information of the second light emitting device to the liquid crystal control device, so that the liquid crystal control device determines the liquid crystal module opposite to the position of the second light emitting device based on the position information, and reduces the driving voltage of the liquid crystal module based on the current cumulative use data to reduce the liquid crystal aperture ratio.

[0092] Although the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located to supplement the light of the first light emitting device after the first adjusting unit 113 increases the light emitting voltage of the second light emitting device based on the current cumulative use data, the brightness of the area where the second light emitting device is located will be increased after the light emitting voltage of the second light emitting device is increased, and the brightness of the area where the second light emitting device is located will be increased to a certain extent, which will cause the area where the second light emitting device is located to display white, affecting the uniformity of the picture display brightness. Therefore, in order to maintain the uniformity of the picture display, the second sending unit 114 sends the current cumulative use data of the first light emitting device and the position information of the second light emitting device to the liquid crystal control device, so that the liquid crystal control device determines the liquid crystal module opposite to the position of the second light emitting device based on the position information, and reduces the driving voltage of the liquid crystal module based on the current cumulative use data to reduce the liquid crystal aperture ratio, thereby reducing the light transmittance of the corresponding position, and further reducing the brightness of the corresponding position of the second light emitting device, and improving the uniformity of the picture display brightness.

[0093] The first selecting unit 112 is specifically configured to select the light emitting device adjacent to the first light emitting device in the light emitting device array as the second light emitting device. Since the light emitted by the second light emitting device needs to be diffused to the position of the first light emitting device, the brightness of the position of the first light emitting device is compensated, and therefore the second light emitting device is the light emitting device adjacent to the first light emitting device in the light emitting device array.

[0094] The principle of selecting the second light emitting device is to select at least one light emitting device adjacent to the first light emitting device in the light emitting device array as the second light emitting device. The number of the second light emitting device can be based on the service requirement, which is not specifically limited in the embodiment. Regardless of the number of the second light emitting device selected, the selected second light emitting device can compensate the brightness of the position of the first light emitting device and maintain the uniformity of the picture display.

[0095] The light emitting device array is divided into a plurality of backlight partitions, the use of the light emitting devices in the same backlight partition is basically the same, and therefore the light emitting devices in the same backlight partition are usually simultaneously determined as the first light emitting device. Therefore, when the first light emitting device is all the light emitting devices in one backlight partition, the backlight partition adjacent to the backlight partition where the first light emitting device is located in the light emitting device array is determined, and the light emitting devices in the determined backlight partition are all selected as the second light emitting device.

[0096] For example, as shown in FIG. 1, Figure 3 Figure 3 there are nine backlight partitions “L1-L9” in the figure, and the light emitting devices in the backlight partition L5 are all the first light emitting device, and therefore the light emitting devices in the backlight partitions L1-L4 and L6-L9 are all selected as the second light emitting device.

[0097] In some embodiments of the present application, the processing module 11 further includes a first judging unit 115 configured to judge whether the picture currently displayed by the display panel is a static picture, and if so, send the current cumulative use data and the position information to the liquid crystal control device.

[0098] The static picture is the data of a plurality of display frames being the same, and when the first judging unit 115 judges that the current picture displayed by the display panel is a static picture, it indicates that the change amount of the light emitting voltage of each light emitting device is small, and in order to make the display picture achieve better display effect, it is necessary to adjust the driving voltage of the corresponding liquid crystal module through the liquid crystal control device to adjust the aperture ratio of the liquid crystal.

[0099] ​The specific conditions of sending the current cumulative use data and the position information to the liquid crystal control device include the following three: 1. The position information of the first light emitting device and the current cumulative use data are sent to the liquid crystal control device, so that the liquid crystal control device determines the liquid crystal module opposite to the position of the first light emitting device based on the position information, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data to increase the liquid crystal aperture ratio. 2. The current cumulative use data and the position information of the second light emitting device are sent to the liquid crystal control device, so that the liquid crystal control device determines the liquid crystal module opposite to the position of the second light emitting device based on the position information, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data to decrease the liquid crystal aperture ratio. 3. The above two cases are combined, that is, the position information of the first light emitting device and the current cumulative use data are sent to the liquid crystal control device, and the current cumulative use data and the position information of the second light emitting device are sent to the liquid crystal control device.

[0100] When the first determining unit 115 determines that the current picture displayed by the display picture is not a still picture, it means that the current picture is most likely a dynamic picture, and the frequent change of the light emitting voltage of each light emitting device requires the use of the dynamic picture dimming mode to reduce the processing amount, and the current cumulative use data and the position information do not need to be sent to the liquid crystal control device.

[0101] The third, in some embodiments of the application, as shown in Figure 2 The processing module 11 includes:

[0102] The second selecting unit 116 is configured to select a third light emitting device based on the position of the first light emitting device in the array of light emitting devices, wherein the third light emitting device is located in the same target region as the first light emitting device, and the third light emitting device surrounds the outside of the first light emitting device.

[0103] The second adjusting unit 117 is configured to determine a voltage adjustment gradient based on the current cumulative use data, and to gradually decrease the light emitting voltage of the third light emitting device from the third light emitting device located at the outermost side of the target region to the first light emitting device based on the voltage adjustment gradient, and to feed back the decreased light emitting voltage to the backlight control device for light emitting control of the third light emitting device based on the decreased light emitting voltage.

[0104] In order to reduce the influence of decreasing the light emitting voltage of the first light emitting device on the uniformity of picture display, a target region is determined, and the light emitting devices in the target region except the first light emitting device are determined as the third light emitting device to adjust the overall brightness of the target region. The third light emitting device surrounds the outside of the first light emitting device in the target region, and the first light emitting device is exemplary the center of the target region.

[0105] When adjusting the overall brightness of the target area, the brightness of the third light-emitting device within that area needs to be smoothed. This smoothing is achieved through a voltage adjustment gradient. The voltage adjustment gradient is determined based on the current cumulative usage data. For example, a pre-defined correspondence between the voltage adjustment gradient and the cumulative usage data is used to determine the voltage adjustment gradient corresponding to the current cumulative usage data. After determining the voltage adjustment gradient, the emission voltage of the third light-emitting device is gradually reduced from the outermost third light-emitting device in the target area towards the first light-emitting device, based on this gradient, to ensure a smooth transition in brightness within the target area.

[0106] By gradually decreasing the emission voltage of the third light-emitting device (LED) in a voltage-adjusted gradient from the third LED towards the first LED, the brightness of the outermost LED in the target area transitions smoothly with its adjacent LEDs, resulting in a visually subtle change in brightness. This method of gradually decreasing the emission voltage of the third LED in a voltage-adjusted gradient from the third LED towards the first LED reduces the brightness contrast difference in the target area, thus achieving a brightness compensation effect.

[0107] The light-emitting device array is divided into multiple backlight zones. Since the light-emitting devices within the same backlight zone are used in essentially the same way, they are usually designated as the first light-emitting devices. Therefore, when the first light-emitting devices are all the light-emitting devices within a single backlight zone, the backlight zones in the display panel that are located within the target area of ​​the first light-emitting device are identified, and the light-emitting devices within these identified backlight zones are selected as the third light-emitting devices. The backlight zone containing the first light-emitting device is located at the center of the target area.

[0108] For example, such as Figure 4 As shown, Figure 4 There are 16 backlight zones "L1-L16", where the light-emitting devices in backlight zone L11 are all first light-emitting devices. The target area involves L6-L8, L10-L12, and L14-L16. The light-emitting voltage of L11 is reduced by 1 volt. The voltage adjustment gradient limits the compensation value of the third light-emitting device in the backlight zone adjacent to L11 to 0.5. Therefore, the light-emitting voltages of L6-L8, L10, L12, and L14-L18 are all reduced by 0.5.

[0109] In some embodiments of this application, the processing module 11 further includes: a second judgment unit 118, used to determine whether the image currently displayed on the display panel is a dynamic image; if so, a third light-emitting device is selected based on the position of the first light-emitting device in the light-emitting device array.

[0110] Since the data of multiple display frames of a dynamic image are different, when the second judgment unit 118 determines that the current image displayed is a dynamic image, in order to reduce the workload of dimming, it only adjusts the light-emitting voltage of the light-emitting device. Therefore, based on the position of the first light-emitting device in the light-emitting device array, it selects the third light-emitting device. When the second judgment unit 118 determines that the current image displayed is not a dynamic image, it means that the current image is likely a static image. Using the method of reducing the overall brightness of the target area would make the brightness difference easily visible to the user. Therefore, it is necessary to use a dimming method for static images, without needing to select the third light-emitting device based on the position of the first light-emitting device in the light-emitting device array.

[0111] like Figure 5 As shown in the figure, this application embodiment provides a backlight control device, which includes a determination module 21 and a control module 22.

[0112] The determining module 21 is used to send the current cumulative usage data of the first light-emitting device to the backlight processing device when the light-emitting device is determined to be the first light-emitting device with a risk of attenuation based on the current cumulative usage data of the light-emitting device, so that the backlight processing device can reduce the light-emitting voltage of the first light-emitting device based on the current cumulative usage data.

[0113] The control module 22 is used to control the first light-emitting device to emit light based on the reduced light-emitting voltage fed back from the backlight processing device.

[0114] The following is a detailed explanation of the specific structure and interaction relationships of the various modules involved in the backlight control device:

[0115] Determine module 21:

[0116] The determination module 21 is mainly used to send the current cumulative usage data of the first light-emitting device to the backlight processing device when the light-emitting device is determined to be the first light-emitting device with a risk of attenuation based on the current cumulative usage data of the light-emitting device, so that the backlight processing device can reduce the light-emitting voltage of the first light-emitting device based on the current cumulative usage data.

[0117] If the performance of some light-emitting devices in the light-emitting device array of a display panel is severely degraded or damaged, it will cause uneven display of the image on the display panel, affecting the viewing experience. Therefore, when the performance of some light-emitting devices in the light-emitting device array is severely degraded or damaged, the lifespan of the display panel will be ended, and it will need to be replaced or discarded.

[0118] In order to extend the service life of the display panel, the determination module 21 is used to determine whether there are light-emitting devices in the light-emitting device array that are attenuation risk. The light-emitting device with attenuation risk mentioned here is the first light-emitting device.

[0119] The determination module 21 is specifically used to: for each light-emitting device, determine whether there is at least one type of usage data in the current cumulative usage data of the light-emitting device that has reached the corresponding attenuation threshold; if so, determine the light-emitting device as the first light-emitting device.

[0120] The performance degradation of light-emitting devices occurs with use; therefore, the current cumulative usage data of a light-emitting device can reflect whether there is a risk of degradation. The current cumulative usage data includes at least one of the following: the cumulative duration of light emission, the cumulative number of times the light-emitting device is turned on and off, and the cumulative number of times the light-emitting device emits light under a target voltage; where the target voltage is a light-emitting voltage greater than a voltage threshold. Each type of usage data in the current cumulative usage data has its own corresponding degradation threshold.

[0121] The light-emitting device is identified as the first light-emitting device when one or more of its current cumulative usage data reach their respective attenuation thresholds. Alternatively, the light-emitting device is identified as the first light-emitting device only when all of its current cumulative usage data reach their respective attenuation thresholds.

[0122] The light-emitting device array is divided into multiple backlight zones. The light-emitting devices in the same backlight zone are used in basically the same way. Therefore, the determining module 21 is further used to determine all light-emitting devices belonging to the same backlight zone as the light-emitting device as the first light-emitting device after determining the light-emitting device as the first light-emitting device.

[0123] For example, such as Figure 3 As shown, Figure 3 There are 9 backlight zones "L1-L9". If one of the light-emitting devices in backlight zone L5 is determined to be the first light-emitting device, then all light-emitting devices in backlight zone L5 will be determined to be the first light-emitting devices.

[0124] After determining the first light-emitting device, the determining module 21 sends the current cumulative usage data of the first light-emitting device to the backlight processing device, so that the backlight processing device can reduce the light-emitting voltage of the first light-emitting device based on the current cumulative usage data, thereby reducing the performance degradation of the first light-emitting device caused by the light-emitting voltage and extending the service life of the first light-emitting device.

[0125] Control Module 22:

[0126] After the backlight processing device reduces the emission voltage of the first light-emitting device, it feeds back the reduced emission voltage to the backlight control device. Upon receiving the reduced emission voltage, the control module 22 directly controls the first light-emitting device to emit light based on the reduced emission voltage. At this time, since the emission voltage of the first light-emitting device has been reduced, the performance degradation of the first light-emitting device caused by the reduced emission voltage can be reduced, thus extending the service life of the first light-emitting device.

[0127] The backlight control device provided in this application, when determining that a light-emitting device is a first light-emitting device with a risk of degradation based on the current cumulative usage data of the light-emitting device, sends the current cumulative usage data of the first light-emitting device to a backlight processing device, so that the backlight processing device reduces the light-emitting voltage of the first light-emitting device based on the current cumulative usage data. After receiving the reduced light-emitting voltage from the backlight processing device, the device controls the first light-emitting device to emit light based on the reduced light-emitting voltage. The performance degradation of a light-emitting device occurs with its use, and the current cumulative usage data of the light-emitting device can reflect the performance degradation of the light-emitting device. Therefore, reducing the light-emitting voltage of the first light-emitting device based on the current cumulative usage data can reduce the loss caused by the reduced light-emitting voltage, thereby slowing down the performance degradation of the first light-emitting device and extending the service life of the display panel.

[0128] like Figure 6 As shown, this application provides a liquid crystal control device, which includes:

[0129] The adjustment module 31 is used to determine the liquid crystal module whose position is opposite to the first light-emitting device based on the position information of the first light-emitting device sent by the backlight processing device, and to increase the driving voltage of the liquid crystal module based on the current cumulative usage data of the first light-emitting device sent by the backlight processing device, so as to increase the liquid crystal aperture ratio; wherein, the first light-emitting device is the light-emitting device that the backlight control device determines has a risk of decay.

[0130] The following is a detailed explanation of the specific structure and interaction relationships of the various modules involved in the LCD control device:

[0131] Adjustment module 31:

[0132] The backlight processing device reduces the light-emitting voltage of the first light-emitting device based on the current cumulative use data, which can reduce the performance loss of the first light-emitting device caused by the light-emitting voltage and prolong the service life of the first light-emitting device. However, the brightness of the first light-emitting device will be dimmed, which will cause uneven display of the picture and affect the display effect of the picture. Therefore, in order to adjust the light-emitting voltage of the first light-emitting device without affecting the display uniformity of the picture, the backlight processing device sends the position information of the first light-emitting device and the current cumulative use data to the liquid crystal control device. The position information is used to define the position of the first light-emitting device in the array of light-emitting devices. The liquid crystal control device is used to determine the driving voltage of the liquid crystal module in the display panel, and the driving voltage is used to drive the liquid crystal deflection.

[0133] The adjusting module 31 in the liquid crystal control device determines the liquid crystal module opposite to the position of the first light-emitting device based on the position information after receiving the position information of the first light-emitting device and the current cumulative use data, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data of the first light-emitting device to increase the liquid crystal aperture ratio, thereby improving the light transmittance at the corresponding position and improving the brightness of the first light-emitting device at the corresponding position, and maintaining the uniformity of the picture display brightness.

[0134] The technical solution of the adjusting module 31 adjusting the driving voltage of the liquid crystal module based on the current cumulative use data of the first light-emitting device is described below. Specifically, the liquid crystal module opposite to the position of the first light-emitting device is determined based on the position information, a second compensation value corresponding to the current cumulative use data is determined, and the driving voltage of the liquid crystal module is adjusted using the second compensation value. When adjusting the driving voltage of the liquid crystal module, the driving voltage of the liquid crystal module opposite to the position of the first light-emitting device in the current display frame is first determined, and then the determined driving voltage is adjusted using the second compensation value. The adjusted driving voltage of the liquid crystal module can be represented by the following formula: P=U+B, where P represents the adjusted driving voltage of the liquid crystal module, U represents the driving voltage of the liquid crystal module, and B represents the second compensation value.

[0135] For example, the driving voltage of the liquid crystal module opposite to the position of the first light-emitting device in the current display frame is 5 volts, and the second compensation value is 0.5 volts. After adjusting the driving voltage of the liquid crystal module based on the second compensation value, the driving voltage becomes 5.5 volts.

[0136] The method for determining the second compensation value includes two methods. One is based on a preset second correspondence relationship. The second correspondence relationship has a preset correspondence relationship between the accumulated use data and the second compensation value. The other is inputting the current accumulated use data into a second model for identifying the second compensation value, and determining the identification result as the second compensation value. The second model is pre-trained and used for identifying the second compensation value based on the accumulated use data. For example, the second model can be a neural network model.

[0137] Since the driving voltage is adjusted, the liquid crystal aperture ratio is increased, the light transmittance of the position corresponding to the first light emitting device is increased, and the problem of uneven display caused by adjusting the light emitting voltage of the first light emitting device is solved.

[0138] For example, as shown in Figure 7 , Figure 7 The liquid crystal module opposite to the light emitting device in Figure 3 is shown. The liquid crystal module opposite to L1-L9 is OC1-OC9, respectively. The liquid crystal driving module 31 drives the liquid crystal module OC5 opposite to L5 based on the adjusted driving voltage, so that the liquid crystal aperture ratio of the liquid crystal module OC5 is increased, the light transmittance of the liquid crystal module OC5 is increased, and the light emitted by L5 is transmitted through the liquid crystal module OC5 in large quantities, and the problem of uneven display caused by adjusting the light emitting voltage of L5 is solved.

[0139] The liquid crystal control device provided by the embodiment of the present application determines the liquid crystal module opposite to the first light emitting device based on the position information of the first light emitting device sent by the backlight processing device, and adjusts the driving voltage of the liquid crystal module based on the current accumulated use data of the first light emitting device sent by the backlight processing device, so as to increase the liquid crystal aperture ratio. It can be seen that since the driving voltage is adjusted, the liquid crystal aperture ratio is increased, the light transmittance of the position corresponding to the first light emitting device is increased, and the problem of uneven display caused by adjusting the light emitting voltage of the first light emitting device is solved.

[0140] In some embodiments of the present application, as shown in Figure 6 , the adjusting module 31 is further used for determining the liquid crystal module opposite to the second light emitting device based on the position information of the second light emitting device sent by the backlight processing device, and adjusting the driving voltage of the liquid crystal module opposite to the second light emitting device based on the current accumulated use data, wherein the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located.

[0141] The backlight processing apparatus adjusts the light-emitting voltage of the second light-emitting device based on the current cumulative use data, and although the light emitted by the second light-emitting device can spread to the area where the first light-emitting device is located to supplement the light of the first light-emitting device, the luminance of the area where the second light-emitting device is located will increase after the light-emitting voltage of the second light-emitting device is adjusted, and the luminance of the area where the second light-emitting device is located will increase to a certain extent, which will cause the area where the second light-emitting device is located to display white light and affect the uniformity of the display brightness. Therefore, in order to maintain the uniformity of the display, the backlight processing apparatus sends the current cumulative use data of the first light-emitting device and the position information of the second light-emitting device to the liquid crystal control apparatus. When the liquid crystal control apparatus receives the position information of the second light-emitting device sent by the backlight processing apparatus, the adjusting module 31 deployed by the liquid crystal control apparatus determines the liquid crystal module opposite to the position of the second light-emitting device based on the position information, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data to reduce the liquid crystal aperture ratio, thereby reducing the light transmittance of the corresponding position and reducing the luminance of the corresponding position of the second light-emitting device, and improving the uniformity of the display brightness.

[0142] As shown in Figure 8 , the backlight adjustment system provided by the embodiments of the present application includes the backlight processing apparatus 41 and the backlight control apparatus 42.

[0143] The backlight adjustment system provided by the embodiments of the present application can reduce the performance degradation loss of the light-emitting device caused by the light-emitting voltage through the interaction of the backlight control apparatus and the backlight processing apparatus.

[0144] In some embodiments of the present application, as shown in Figure 9 , the backlight adjustment system further includes the liquid crystal control apparatus 43.

[0145] The backlight adjustment system provided by the embodiments of the present application can reduce the performance degradation loss of the light-emitting device caused by the light-emitting voltage, prolong the service life of the display panel, and ensure the uniformity of the display of the display panel.

[0146] In some embodiments of the present application, as shown in Figure 9 , the backlight adjustment system provided by the embodiments of the present application can prolong the service life of the display panel and improve the display effect of the display panel. The backlight adjustment system is provided with the backlight processing apparatus 41, the backlight control apparatus 42 and the liquid crystal control apparatus 43.

[0147] In actual application, the backlight processing apparatus 41, the backlight control apparatus 42 and the liquid crystal control apparatus 43 can be realized by three separate chips, or can be realized by an integrated chip. When the integrated chip is used, the backlight processing apparatus 41, the backlight control apparatus 42 and the liquid crystal control apparatus 43 are integrated in the same chip.

[0148] The backlight control device 42 is implemented by an LED control chip, the backlight processing device 41 is implemented by an LDC algorithm chip, and the liquid crystal control device 43 is implemented by a timing driving chip, which is a TCON chip.

[0149] The backlight processing device 41 is further configured to send control data of each light emitting device in the display panel to the backlight control device 42. The backlight control device 42 converts and processes the control data, determines the light emitting voltage of each light emitting device, assembles the light emitting voltage of each light emitting device according to the sorting position of the light emitting device in the light emitting device array, and sends the assembled data to the drive of the light emitting device array, so that the drive controls the backlight brightness of each light emitting device based on the light emitting voltage in the assembled data.

[0150] In addition to the above-mentioned actions, the backlight control device 42 is further configured to count the cumulative use data of each light emitting device and monitor whether there is a first light emitting device in the display panel based on the cumulative use data in the embodiment of the present application. When the backlight control device 42 determines that there is a first light emitting device with a risk of attenuation in the display panel, the backlight control device 42 sends the current cumulative use data of the first light emitting device to the backlight processing device 41, so that the backlight processing device 41 adjusts the light emitting voltage of the first light emitting device, thereby slowing down the attenuation speed of the first light emitting device. The way that the backlight control device 42 feeds back the current cumulative use data of the first light emitting device to the backlight processing device 41 realizes a closed loop of the control of the light emitting device, and makes the control of the light emitting device more intelligent.

[0151] The connection between the backlight processing device 41, the backlight control device 42 and the liquid crystal control device 43 can be realized by Figure 10 indicates that Figure 10 A structural schematic diagram of a backlight adjusting system is shown. Figure 10 In the embodiment, the backlight processing device 41 and the backlight control device 42 include two lines. The backlight processing device 41 transmits control data to the backlight control device 42 through the line A, and transmits the light emitting voltage of the first light emitting device adjusted based on the current cumulative use data to the backlight control device 42 through the line A. The backlight control device 42 transmits the current cumulative use data of the first light emitting device to the backlight processing device 41 through the line B. The line A is connected to the SPI interface of the backlight control device 42 and the backlight processing device 41. The line B is connected to the I2C interface of the backlight control device 42 and the backlight processing device 41. The backlight control device 42 transmits the light emitting voltage to the light emitting device array through the SPI interface.

[0152] The backlight processing apparatus 41 provides the driving voltage to the liquid crystal control apparatus 43 after determining the driving voltage. The backlight processing apparatus 41 transmits the driving voltage to the liquid crystal control apparatus 43 through a line C. The backlight processing apparatus 41 is connected with the liquid crystal control apparatus 43 through a VX1 or eDP interface. The liquid crystal control apparatus 43 drives the liquid crystal module through a P2P or mini-LVDS interface. After the liquid crystal control apparatus 43 adjusts the driving voltage, the liquid crystal control apparatus 43 drives the liquid crystal deflection according to the adjusted driving voltage through the above-mentioned interface.

[0153] Further, another embodiment of the present application further provides a display panel, which comprises the backlight adjusting system.

[0154] The display panel provided by the embodiments of the present application has basically the same beneficial effects as the backlight adjusting system, and thus will not be described here again.

[0155] Further, another embodiment of the present application further provides a backlight processing method, as shown in the figure, which mainly comprises the following steps: Figure 11

[0156] 501. Adjusting down the light-emitting voltage of the first light-emitting device based on the current cumulative use data of the first light-emitting device sent by the backlight control apparatus, wherein the first light-emitting device is the light-emitting device determined by the backlight control apparatus to have a risk of attenuation.

[0157] 502. Feeding back the adjusted light-emitting voltage to the backlight control apparatus, so that the backlight control apparatus controls the light-emitting of the first light-emitting device based on the adjusted light-emitting voltage.

[0158] The backlight processing method provided by the embodiments of the present application, when the first light-emitting device having a risk of attenuation exists in the display panel, adjusts down the light-emitting voltage of the first light-emitting device based on the current cumulative use data of the first light-emitting device, and feeds back the adjusted light-emitting voltage to the backlight control apparatus, so that the backlight control apparatus controls the light-emitting of the first light-emitting device based on the adjusted light-emitting voltage. The performance attenuation of the light-emitting device occurs with its use, and the current cumulative use data of the light-emitting device can reflect the performance attenuation of the light-emitting device, so that adjusting down the light-emitting voltage of the first light-emitting device according to the current cumulative use data of the first light-emitting device can reduce the loss of the light-emitting voltage to the first light-emitting device, thereby slowing down the performance attenuation of the first light-emitting device, and further prolonging the service life of the display panel.

[0159] ​In some embodiments of the present application, the backlight processing method further comprises the steps of: sending the position information of the first light emitting device and the current cumulative use data to a liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the first light emitting device based on the position information, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data to increase the liquid crystal aperture ratio.

[0160] In some embodiments of the present application, the backlight processing method further comprises the steps of: selecting a second light emitting device based on the position of the first light emitting device in the array of light emitting devices, wherein the light emitted by the second light emitting device can diffuse to the area where the first light emitting device is located.

[0161] Adjusting the light emitting voltage of the second light emitting device based on the current cumulative use data, and feeding back the adjusted light emitting voltage to the backlight control device, so that the backlight control device controls the light emitting of the second light emitting device based on the adjusted light emitting voltage.

[0162] In some embodiments of the present application, the backlight processing method further comprises the steps of: sending the current cumulative use data and the position information of the second light emitting device to a liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the second light emitting device based on the position information, and adjusts the driving voltage of the liquid crystal module based on the current cumulative use data to decrease the liquid crystal aperture ratio.

[0163] In some embodiments of the present application, the backlight processing method further comprises the steps of:

[0164] Selecting a third light emitting device based on the position of the first light emitting device in the array of light emitting devices, wherein the third light emitting device is located in the same target area as the first light emitting device, and the third light emitting device surrounds the first light emitting device.

[0165] Determining a voltage adjustment gradient based on the current cumulative use data, and adjusting the light emitting voltage of the third light emitting device in a gradient from the outermost third light emitting device in the target area to the first light emitting device based on the voltage adjustment gradient, and feeding back the adjusted light emitting voltage to the backlight control device, so that the backlight control device controls the light emitting of the third light emitting device based on the adjusted light emitting voltage.

[0166] In some embodiments of the present application, the backlight processing method further comprises the steps of: determining whether the current display screen of the display panel is a dynamic screen, and if so, selecting a third light emitting device based on the position of the first light emitting device in the array of light emitting devices.

[0167] In some embodiments of the present application, the backlight processing method further comprises the steps of: determining whether the current displayed picture of the display panel is a static picture; and if so, sending the current accumulated use data and the position information to the liquid crystal control device.

[0168] Further, another embodiment of the present application also provides a backlight control method, as shown in the accompanying drawings, the backlight control method mainly comprises the following steps: Figure 12

[0169] 601. When it is determined that the light emitting device is the first light emitting device with a risk of attenuation based on the current accumulated use data of the light emitting device, the current accumulated use data of the first light emitting device is sent to the backlight processing device, so that the backlight processing device reduces the light emitting voltage of the first light emitting device based on the current accumulated use data.

[0170] 602. The first light emitting device is controlled to emit light based on the reduced light emitting voltage fed back by the backlight processing device.

[0171] The backlight control method provided by the embodiments of the present application, when it is determined that the light emitting device is the first light emitting device with a risk of attenuation based on the current accumulated use data of the light emitting device, the current accumulated use data of the first light emitting device is sent to the backlight processing device, so that the backlight processing device reduces the light emitting voltage of the first light emitting device based on the current accumulated use data. After receiving the reduced light emitting voltage fed back by the backlight processing device, the first light emitting device is controlled to emit light based on the reduced light emitting voltage. The performance attenuation of the light emitting device occurs with its use, and the current accumulated use data of the light emitting device can reflect the performance attenuation of the light emitting device. Therefore, reducing the light emitting voltage of the first light emitting device according to the current accumulated use data of the first light emitting device can reduce the loss of the light emitting voltage to the first light emitting device, thereby slowing down the performance attenuation of the first light emitting device and prolonging the service life of the display panel.

[0172] In some embodiments of the present application, determining that the light emitting device is the first light emitting device with a risk of attenuation based on the current accumulated use data of the light emitting device comprises: for each light emitting device, determining whether at least one use data in the current accumulated use data of the light emitting device reaches a corresponding attenuation threshold; and if so, determining that the light emitting device is the first light emitting device.

[0173] In some embodiments of the present application, after the light emitting device is determined to be the first light emitting device, the light emitting devices belonging to the same backlight sub-area as the light emitting device are all determined to be the first light emitting device.

[0174] ​In some embodiments of the present application, the current cumulative usage data includes at least one of the following usage data: a length of time that the light emitting device has been emitting light, a number of times that the light emitting device has been turned on and turned off, and a number of times that the light emitting device has been emitting light at a target voltage; wherein the target voltage is a light emitting voltage that is greater than a voltage threshold.

[0175] Further, another embodiment of the present application also provides a liquid crystal control method, as shown in the following Figure 13 The liquid crystal control method mainly includes the following steps:

[0176] 701. Determine a liquid crystal module opposite to a first light emitting device based on position information of the first light emitting device sent by a backlight processing device; wherein the first light emitting device is a light emitting device determined by the backlight control device to have a risk of decay.

[0177] 702. Increase a driving voltage of the liquid crystal module based on current cumulative usage data of the first light emitting device sent by the backlight processing device.

[0178] The liquid crystal control method provided by the embodiments of the present application determines a liquid crystal module opposite to a first light emitting device based on position information of the first light emitting device sent by a backlight processing device, and increases a driving voltage of the liquid crystal module based on current cumulative usage data of the first light emitting device sent by the backlight processing device, so as to increase a liquid crystal aperture ratio. It can be seen that, since the driving voltage is increased, the liquid crystal aperture ratio is increased, so that a light transmittance of a position corresponding to the first light emitting device is increased, thereby solving a problem of uneven display of a picture caused by decreasing a light emitting voltage of the first light emitting device.

[0179] In some embodiments of the present application, the liquid crystal control method further includes the following steps: determine a liquid crystal module opposite to a second light emitting device based on position information of the second light emitting device sent by the backlight processing device, and decrease a driving voltage of the liquid crystal module opposite to the second light emitting device based on the current cumulative usage data, wherein light emitted by the second light emitting device can diffuse to an area where the first light emitting device is located.

[0180] Further, according to the above-mentioned embodiments, another embodiment of the present application also provides a computer readable storage medium, the storage medium includes a stored program, wherein when the program runs, the device where the storage medium is located executes at least one of the following methods: the above-mentioned backlight processing method, the above-mentioned backlight control method, and the above-mentioned liquid crystal control method.

[0181] In the above-mentioned embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0182] It can be understood that the related features in the above method and device can be mutually referred. In addition, “first”, “second” and the like in the above embodiments are used to distinguish the embodiments, and do not represent the advantages and disadvantages of the embodiments. It can be clearly understood by those skilled in the art that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0183] The algorithms and displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems can be used with programs in accordance with the teachings herein, or it can prove convenient to construct more specialized apparatus to perform the required method steps. The required structure for a variety of these systems will be apparent from the description above. In addition, the present application is not intended to be limited to any particular programming language. It will be appreciated that there are many programming languages that can be used to implement the teachings of the present application as described herein, and any such programming language can be used in this regard.

[0184] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been described in detail in order to avoid obscuring the understanding of this description.

[0185] Also, it is understood that the features of the differing embodiments can be combined with each other, meaning within the scope of the present application and forming different embodiments, although some embodiments described herein include some, but not other, features included in other embodiments. For example, in the claims below any of the claimed embodiments can be used in any combination.

[0186] Embodiments of various components of the present application can be implemented in hardware, software, or a combination thereof, running on one or more processors. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functionality of some or all of the components of the backlight processing apparatus, backlight control apparatus, liquid crystal control apparatus, and methods according to embodiments of the present application. The present application can also be implemented as a program (e.g., computer program and computer program product) for executing any or all of the methods described herein on a device or apparatus (e.g., computer). Such a program implementing the present application can be stored on a computer readable medium, or can be in the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier wave, or in any other form.

[0187] It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' does not exclude the presence of elements or steps other than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unitary claim, several devices or sub-claims can be listed, comprising different combinations of elements. The word 'comprise', 'comprising', 'comprises' and the like do not exclude the presence of elements or steps other than those listed in a claim. The word 'first','second', 'third' etc. do not imply any order. The terminology includes the words above, derivatives thereof and terms of similar import.

Claims

1. A backlight processing apparatus, characterized by comprising: The backlight processing device comprises: a processing module configured to reduce the light-emitting voltage of the first light-emitting device based on current cumulative use data of the first light-emitting device sent by the backlight control device, wherein the first light-emitting device is a light-emitting device determined by the backlight control device to have a risk of decay, and the current cumulative use data comprises at least one of the following use data: a time length of cumulative light emission of the light-emitting device, a number of cumulative on and off times of the light-emitting device, and a cumulative number of times of light emission of the light-emitting device under a target voltage, wherein the target voltage is a light-emitting voltage greater than a voltage threshold; a feedback module configured to feed back the reduced light-emitting voltage to the backlight control device, so that the backlight control device controls light emission of the first light-emitting device based on the reduced light-emitting voltage; the processing module is further configured to, in a case where it is determined that a current display screen of the display panel is a static screen, send position information and current cumulative use data of the first light-emitting device to a liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the position of the first light-emitting device based on the position information, and increases a driving voltage of the liquid crystal module based on the current cumulative use data, so as to increase a liquid crystal aperture ratio; the processing module is further configured to, in a case where it is determined that a current display screen of the display panel is a dynamic screen, select a third light-emitting device based on a position of the first light-emitting device in the array of light-emitting devices, wherein the third light-emitting device is located in a same target region as the first light-emitting device and surrounds the first light-emitting device, determine a voltage adjustment gradient based on the current cumulative use data, and reduce the light-emitting voltage of the third light-emitting device from the third light-emitting device located at the outermost side of the target region to the first light-emitting device in a gradient manner, and feed back the reduced light-emitting voltage to the backlight control device, so that the backlight control device controls light emission of the third light-emitting device based on the reduced light-emitting voltage.

2. The backlight processing apparatus of claim 1, wherein, the processing module is further configured to: select a second light-emitting device based on a position of the first light-emitting device in the array of light-emitting devices, wherein light emitted by the second light-emitting device can diffuse to a region where the first light-emitting device is located; increase the light-emitting voltage of the second light-emitting device based on the current cumulative use data, and feed back the increased light-emitting voltage to the backlight control device, so that the backlight control device controls light emission of the second light-emitting device based on the increased light-emitting voltage; the processing module is further configured to, in a case where it is determined that a current display screen of the display panel is a static screen, send the current cumulative use data and position information of the second light-emitting device to a liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the position of the second light-emitting device based on the position information, and reduces a driving voltage of the liquid crystal module based on the current cumulative use data, so as to reduce a liquid crystal aperture ratio.

3. A backlight control device, characterized by comprising: the backlight control device comprises: determining module, configured to: when determining that the light emitting device is the first light emitting device at risk of attenuation based on current cumulative use data of the light emitting device, sending the current cumulative use data of the first light emitting device to a backlight processing apparatus, so that the backlight processing apparatus reduces the light emitting voltage of the first light emitting device based on the current cumulative use data; and so that the backlight processing apparatus sends position information and current cumulative use data of the first light emitting device to a liquid crystal control apparatus when determining that a current displayed picture of a display panel is a static picture, so that the liquid crystal control apparatus determines a liquid crystal module opposite to the position of the first light emitting device based on the position information, and increases the driving voltage of the liquid crystal module based on the current cumulative use data to increase the liquid crystal aperture ratio; and so that the backlight processing apparatus selects a third light emitting device based on the position of the first light emitting device in the array of light emitting devices when determining that the current displayed picture of the display panel is a dynamic picture, wherein the third light emitting device is in the same target region as the first light emitting device and surrounds the first light emitting device, determines a voltage adjustment gradient based on the current cumulative use data, and reduces the light emitting voltage of the third light emitting device from the third light emitting device located at the outermost side of the target region to the first light emitting device in a gradient direction, and feeds back the reduced light emitting voltage to the backlight control apparatus, so that the backlight control apparatus controls the third light emitting device to emit light based on the reduced light emitting voltage; the current cumulative use data includes at least one of the following use data: a cumulative light emitting time of the light emitting device, a cumulative number of times of turning on and off of the light emitting device, and a cumulative number of times of light emitting of the light emitting device under a target voltage driving; and the target voltage is a light emitting voltage greater than a voltage threshold. The control module is configured to: control the first light emitting device to emit light based on the reduced light emitting voltage fed back by the backlight processing apparatus when receiving the reduced light emitting voltage of the first light emitting device; and control the third light emitting device to emit light based on the reduced light emitting voltage when receiving the reduced light emitting voltage of the third light emitting device.

4. The backlight control apparatus according to claim 3, wherein The determination module is specifically configured to: For each light emitting device, determine whether at least one use data in the current cumulative use data of the light emitting device reaches a corresponding attenuation threshold; and if so, determine the light emitting device as the first light emitting device.

5. The backlight control apparatus according to claim 4, wherein The determination module is further configured to: After determining the light emitting device as the first light emitting device, determine all light emitting devices belonging to the same backlight subregion as the light emitting device as the first light emitting device.

6. A backlight adjustment system, characterized by, The backlight adjustment system comprises the backlight processing apparatus of any one of claims 1 to 2 and the backlight control apparatus of any one of claims 3 to 5.

7. The backlight adjustment system of claim 6, wherein, The backlight adjustment system further comprises a liquid crystal control apparatus.

8. A display panel, characterized by, The display panel comprises the backlight adjustment system of claim 6 or 7.

9. A method of backlight processing, characterized by, The method comprises: The light emitting voltage of the first light emitting device is reduced based on the current cumulative use data of the first light emitting device sent by the backlight control device, wherein the first light emitting device is the light emitting device determined by the backlight control device to have a risk of decay; the current cumulative use data includes at least one of the following use data: the cumulative light emitting time of the light emitting device, the cumulative number of on and off times of the light emitting device, and the cumulative number of times that the light emitting device emits light under the target voltage driving; wherein the target voltage is a light emitting voltage greater than a voltage threshold; The reduced light emitting voltage is fed back to the backlight control device for the backlight control device to control the light emitting of the first light emitting device based on the reduced light emitting voltage; In a case where it is determined that the current display of the display panel is a static picture, the position information and the current cumulative use data of the first light emitting device are sent to the liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the position of the first light emitting device based on the position information, and increases the driving voltage of the liquid crystal module based on the current cumulative use data to increase the liquid crystal aperture ratio; In a case where it is determined that the current display of the display panel is a dynamic picture, a third light emitting device is selected based on the position of the first light emitting device in the light emitting device array, wherein the third light emitting device is located in the same target area as the first light emitting device, and the third light emitting device surrounds the outside of the first light emitting device; a voltage adjustment gradient is determined based on the current cumulative use data; the light emitting voltage of the third light emitting device is reduced in a gradient from the third light emitting device located at the outermost side of the target area to the first light emitting device based on the voltage adjustment gradient, and the reduced light emitting voltage is fed back to the backlight control device for the backlight control device to control the light emitting of the third light emitting device based on the reduced light emitting voltage.

10. A backlight control method characterized by comprising: The method comprises: In a case that the current cumulative use data of the light emitting device is determined to be the first light emitting device at risk of attenuation, the current cumulative use data of the first light emitting device is sent to the backlight processing device, so that the backlight processing device reduces the light emitting voltage of the first light emitting device based on the current cumulative use data, and in a case that the current display screen of the display panel is determined to be a static screen, the position information and the current cumulative use data of the first light emitting device are sent to the liquid crystal control device, so that the liquid crystal control device determines a liquid crystal module opposite to the first light emitting device based on the position information, and increases the driving voltage of the liquid crystal module based on the current cumulative use data, so as to increase the liquid crystal aperture ratio; and in a case that the current display screen of the display panel is determined to be a dynamic screen, a third light emitting device is selected based on the position of the first light emitting device in the array of light emitting devices, wherein the third light emitting device is located in the same target region as the first light emitting device and surrounds the first light emitting device, a voltage adjustment gradient is determined based on the current cumulative use data, the light emitting voltage of the third light emitting device is reduced in a gradient from the third light emitting device located at the outermost side of the target region to the first light emitting device based on the voltage adjustment gradient, and the reduced light emitting voltage is fed back to the backlight control device, so that the backlight control device controls the light emitting of the third light emitting device based on the reduced light emitting voltage; the current cumulative use data includes at least one of the following use data: the cumulative light emitting time of the light emitting device, the cumulative on and off times of the light emitting device, and the cumulative light emitting times of the light emitting device under the driving of the target voltage; wherein the target voltage is a light emitting voltage greater than a voltage threshold value. In a case that the reduced light emitting voltage of the first light emitting device is received, the light emitting of the first light emitting device is controlled based on the reduced light emitting voltage fed back by the backlight processing device. In a case that the reduced light emitting voltage of the third light emitting device is received, the light emitting of the third light emitting device is controlled based on the reduced light emitting voltage.

11. A computer readable storage medium, characterized in that, The storage medium includes a stored program, wherein the program controls the device where the storage medium is located to execute at least one of the following methods: the backlight processing method of claim 9, and the backlight control method of claim 10.

Images