Display panel compensation method and device, equipment, medium and product

Abstract

The invention discloses a compensation method and device of a display panel, equipment, a medium and a product, and belongs to the technical field of display. Acquiring first display brightness, to-be-displayed brightness and original display parameters of the display panel in the second dimming mode, wherein the original display parameters are parameters for driving the display panel to emit light; determining a target display brightness deviation based on the first display brightness and to-be-displayed brightness; determining a target compensation value corresponding to the target display brightness deviation based on a preset corresponding relationship between the display brightness deviation and the compensation value; and compensating the original display parameter based on the target compensation value to obtain a target display parameter. According to the embodiment of the invention, the brightness distortion generated by switching the dimming mode of the display panel can be eliminated, and the user experience is improved.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and in particular, relates to a compensation method, device, equipment, medium and product for a display panel. Background Art

[0002] Organic Light Emitting Diode (OLED) and flat display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages of high image quality, power saving, thin body and wide application range, becoming the mainstream of display devices. However, the display performance of current OLED display products needs to be improved. Summary of the invention

[0003] The embodiments of the present application provide a compensation method, device, equipment, medium and product for a display panel, which can eliminate the brightness distortion of the display panel after switching the dimming mode and improve the display performance of the display panel.

[0004] In a first aspect, an embodiment of the present application provides a compensation method for a display panel, comprising:

[0005] In the case where the first dimming mode of the display panel is switched to the second dimming mode, a first display brightness, a brightness to be displayed, and an original display parameter of the display panel in the second dimming mode are obtained, where the original display parameter is a parameter for driving the light emission of the display panel; the first dimming mode is a dimming mode of the display panel in a first display brightness interval, and the second dimming mode is a dimming mode of the display panel in a brightness interval to be displayed, and the minimum display brightness in the first display brightness interval is greater than the maximum display brightness in the brightness interval to be displayed; in one picture refresh cycle of the first dimming mode, the duty cycle of the light emission control signal of the display panel is the first duty cycle; in one picture refresh cycle of the second dimming mode, the duty cycle of the light emission control signal is the second duty cycle, and the first duty cycle is different from the second duty cycle;

[0006] Determining a target display brightness deviation based on the first display brightness and the brightness to be displayed;

[0007] Determine a target compensation value corresponding to the target display brightness deviation based on a preset corresponding relationship between the display brightness deviation and the compensation value;

[0008] The original display parameters are compensated based on the target compensation values ​​to obtain target display parameters.

[0009] According to any of the aforementioned implementations of the first aspect of the present application, the original display parameter includes a target display grayscale, the first display brightness includes a first display brightness of the display panel at the target display grayscale, the brightness to be displayed includes a brightness to be displayed of the display panel at the target display grayscale, the target display brightness deviation includes a target display brightness deviation of the display panel at the target display grayscale, and the corresponding relationship includes a corresponding relationship between display brightness of multiple display grayscales and compensation values;

[0010] Determining a target compensation value corresponding to a target display brightness deviation based on a preset corresponding relationship between a display brightness deviation and a compensation value includes:

[0011] Based on the preset correspondence between the display brightness of the display panel at a plurality of display grayscales and the compensation value, a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale is determined.

[0012] According to any of the aforementioned implementations of the first aspect of the present application, the original display parameter includes a register value, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at multiple display grayscales and a first compensation value, and the first compensation value is a compensation value of the register value;

[0013] Determining a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale based on a preset correspondence between display brightness deviations of the display panel at multiple display grayscales and compensation values ​​includes:

[0014] Determining a first target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence relationship between display brightness deviations of the display panel at multiple display gray scales and the first compensation value;

[0015] The original display parameters are compensated based on the target compensation values ​​to obtain target display parameters, including:

[0016] The register value is compensated based on the first target compensation value to obtain a target display parameter, where the target display parameter includes a target register value.

[0017] According to any of the aforementioned implementations of the first aspect of the present application, the original display parameter includes a duty cycle of the light emitting control signal, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at multiple display grayscales and a second compensation value, and the second compensation value is a compensation value of the duty cycle of the light emitting control signal;

[0018] Determining a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale based on a preset correspondence between display brightness deviations of the display panel at multiple display grayscales and compensation values ​​includes:

[0019] Determining a second target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence between display brightness deviations of the display panel at multiple display gray scales and the second compensation value;

[0020] The original display parameters are compensated based on the target compensation values ​​to obtain target display parameters, including:

[0021] The duty cycle of the light emitting control signal is compensated based on the second target compensation value to obtain a target display parameter, where the target display parameter includes the duty cycle of the target light emitting control signal.

[0022] According to any of the foregoing embodiments of the first aspect of the present application, when the first dimming mode of the display panel is switched to the second dimming mode, before obtaining the first display brightness, the brightness to be displayed, and the original display parameters of the display panel in the second dimming mode, the compensation method further includes:

[0023] Acquire a second display brightness of the display panel at multiple display grayscales in a second dimming mode;

[0024] Adjusting the register value of each display panel displaying grayscale, the register value being a register value corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the second display brightness of each display panel displaying grayscale and the brightness to be displayed is less than or equal to the first preset threshold, and obtaining a plurality of first compensation values ​​of the display panel in the second dimming mode at a plurality of display grayscales;

[0025] Based on the plurality of first compensation values ​​and the display brightness deviations, a corresponding relationship between the display brightness deviations of the display panel at a plurality of display grayscales and the first compensation values ​​is determined.

[0026] According to any of the foregoing embodiments of the first aspect of the present application, when the first dimming mode of the display panel is switched to the second dimming mode, before obtaining the first display brightness, the brightness to be displayed, and the original display parameters of the display panel in the second dimming mode, the compensation method further includes:

[0027] Acquire a third display brightness of the display panel at multiple display grayscales in the second dimming mode;

[0028] Adjusting the duty cycle of the light emitting control signal of each display panel displaying grayscale, wherein the duty cycle of the light emitting control signal is a duty cycle corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the third display brightness of each display panel displaying grayscale and the brightness to be displayed is less than or equal to the second preset threshold, thereby obtaining a plurality of second compensation values ​​of the display panel in the second dimming mode at a plurality of display grayscales;

[0029] Based on the plurality of second compensation values ​​and the display brightness deviations, a corresponding relationship between the display brightness deviations of the display panel at a plurality of display grayscales and the second compensation values ​​is determined.

[0030] In a second aspect, an embodiment of the present application provides a compensation device for a display panel, including:

[0031] an acquisition module, for acquiring, when the first dimming mode of the display panel is switched to the second dimming mode, a first display brightness, a brightness to be displayed, and an original display parameter of the display panel in the second dimming mode, wherein the original display parameter is a parameter for driving the light emission of the display panel; the first dimming mode is a dimming mode of the display panel in a first display brightness interval, the second dimming mode is a dimming mode of the display panel in a brightness interval to be displayed, and the minimum display brightness in the first display brightness interval is greater than the maximum display brightness in the brightness interval to be displayed; in a picture refresh cycle of the first dimming mode, the duty cycle of the light emission control signal of the display panel is a first duty cycle; in a picture refresh cycle of the second dimming mode, the duty cycle of the light emission control signal is a second duty cycle, and the first duty cycle is different from the second duty cycle;

[0032] A determination module, configured to determine a target display brightness deviation based on the first display brightness and the brightness to be displayed;

[0033] The determination module is further used to determine a target compensation value corresponding to the target display brightness deviation based on a preset corresponding relationship between the display brightness deviation and the compensation value;

[0034] The compensation module is used to compensate the original display parameters based on the target compensation value to obtain the target display parameters.

[0035] According to any of the aforementioned implementations of the second aspect of the present application, the original display parameter includes a target display grayscale, the first display brightness includes a first display brightness of the display panel at the target display grayscale, the brightness to be displayed includes a brightness to be displayed of the display panel at the target display grayscale, the target display brightness deviation includes a target display brightness deviation of the display panel at the target display grayscale, and the corresponding relationship includes a corresponding relationship between display brightness of multiple display grayscales and compensation values;

[0036] Identify modules, specifically for:

[0037] Based on the preset correspondence between the display brightness of the display panel at a plurality of display grayscales and the compensation value, a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale is determined.

[0038] According to any of the aforementioned implementations of the second aspect of the present application, the original display parameter includes a register value, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at multiple display grayscales and a first compensation value, and the first compensation value is a compensation value of the register value;

[0039] Identify modules, specifically for:

[0040] Determining a first target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence relationship between display brightness deviations of the display panel at multiple display gray scales and the first compensation value;

[0041] Confirmation module, specifically used for:

[0042] The register value is compensated based on the first target compensation value to obtain a target display parameter, where the target display parameter includes a target register value.

[0043] According to any of the aforementioned implementations of the second aspect of the present application, the original display parameter includes a duty cycle of the light emitting control signal, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at multiple display grayscales and a second compensation value, and the second compensation value is a compensation value of the duty cycle of the light emitting control signal;

[0044] Identify modules, specifically for:

[0045] Determining a second target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence between display brightness deviations of the display panel at multiple display gray scales and the second compensation value;

[0046] Identify modules, specifically for:

[0047] The duty cycle of the light emitting control signal is compensated based on the second target compensation value to obtain a target display parameter, where the target display parameter includes the duty cycle of the target light emitting control signal.

[0048] According to any of the aforementioned implementations of the second aspect of the present application, the acquisition module is further used to:

[0049] Acquire a second display brightness of the display panel at multiple display grayscales in a second dimming mode;

[0050] Adjusting the register value of each display panel displaying grayscale, the register value being a register value corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the second display brightness of each display panel displaying grayscale and the brightness to be displayed is less than or equal to the first preset threshold, and obtaining a plurality of first compensation values ​​of the display panel in the second dimming mode at a plurality of display grayscales;

[0051] Based on the plurality of first compensation values ​​and the display brightness deviations, a corresponding relationship between the display brightness deviations of the display panel at a plurality of display grayscales and the first compensation values ​​is determined.

[0052] According to any of the aforementioned implementations of the second aspect of the present application, the acquisition module is further used to:

[0053] Acquire a third display brightness of the display panel at multiple display grayscales in the second dimming mode;

[0054] Adjusting the duty cycle of the light emitting control signal of each display panel displaying grayscale, wherein the duty cycle of the light emitting control signal is a duty cycle corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the third display brightness of each display panel displaying grayscale and the brightness to be displayed is less than or equal to the second preset threshold, thereby obtaining a plurality of second compensation values ​​of the display panel in the second dimming mode at a plurality of display grayscales;

[0055] Based on the plurality of second compensation values ​​and the display brightness deviations, a corresponding relationship between the display brightness deviations of the display panel at a plurality of display grayscales and the second compensation values ​​is determined.

[0056] In a third aspect, an embodiment of the present application provides a display device, the device comprising:

[0057] a processor and a memory storing computer program instructions;

[0058] When the processor executes the computer program instructions, it is used to execute the display panel compensation method of the first aspect.

[0059] In a fourth aspect, an embodiment of the present application provides a computer storage medium having computer program instructions stored thereon, and when the computer program instructions are executed by a processor, the display panel compensation method of the first aspect described above is implemented.

[0060] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when processed by a processor, implements the display panel compensation method of the first aspect described above.

[0061] The compensation method, device, equipment, medium and product of the display panel provided in the embodiment of the present application obtain the first display brightness, brightness to be displayed and original display parameters of the display panel in the second dimming mode of the display panel when the first dimming mode of the display panel is switched to the second dimming mode, determine the target display brightness deviation of the display panel through the first display brightness and the brightness to be displayed, determine the target compensation value corresponding to the target display brightness deviation based on the correspondence between the preset display brightness deviation and the compensation value, compensate the original display parameters based on the target compensation value, and obtain the target display parameters. When the display panel switches the dimming mode, the target display parameters can be determined based on the target brightness display deviation of the display panel, so that the target display parameters drive the display panel to emit light, eliminate the brightness distortion of the display panel, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0063] Figure 1 A schematic flow chart of a compensation method for a display panel provided in some embodiments of the present application.

[0064] Figure 2 A schematic flow chart of another display panel compensation method provided in some embodiments of the present application.

[0065] Figure 3 A schematic flow chart of another display panel compensation method provided in some embodiments of the present application.

[0066] Figure 4 A schematic flow chart of another display panel compensation method provided in some embodiments of the present application.

[0067] Figure 5 A schematic flow chart of another display panel compensation method provided in some embodiments of the present application.

[0068] Figure 6 A schematic flow chart of another display panel compensation method provided in some embodiments of the present application.

[0069] Figure 7 A schematic diagram of a compensation device for a display panel provided in some embodiments of the present application.

[0070] Figure 8 A schematic diagram of the hardware structure of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0071] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0072] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0073] Before elaborating on the technical solutions provided by the embodiments of the present application, in order to facilitate the understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the related art: At present, display panels made of active matrix organic light emitting diode panels (AMOLED) are increasingly widely used in user devices (such as mobile phones). AMOLED display panels mostly use pulse width (PWM) dimming mode for dimming. The PWM dimming mode can improve the display unevenness of the display panel in the low brightness display range, such as the display brightness in the display range of 50-90nit. The disadvantage is that it may cause the display panel to have a flicker problem in the high brightness display range, such as an internal flicker problem in the display range where the display brightness is greater than 90nit. Therefore, a hybrid dimming mode based on the direct current dimming (DC) dimming mode and the pulse width (PWM) dimming mode came into being. Usually, the DC dimming mode is used in the high display brightness range, and the PWM dimming mode is used in the low display brightness range. However, currently, when switching from the DC dimming mode to the PWM dimming mode, that is, when the display brightness of the display panel is switched from the high-brightness display range to the display brightness in the low-brightness display range, the display brightness of the display panel will be distorted at the junction of the high-brightness display range and the low-brightness display range. For example, at the moment of switching from 150nit to 90nit, the display panel will have brightness distortion at 89.9nit, which is adjacent to 90nit, affecting the display performance and user experience.

[0074] Based on this, the embodiments of the present application provide a compensation method, device, equipment, medium and product for a display panel, which can solve the above problems. Below, a compensation method for a display panel provided by the embodiments of the present application is described in detail.

[0075] In some embodiments, Figure 1 As shown, the embodiment of the present application provides a compensation method for a display panel, including S110 to S140.

[0076] S110: When the display panel switches from the first dimming mode to the second dimming mode, obtain the first display brightness, the brightness to be displayed and the original display parameters of the display panel in the second dimming mode, where the original display parameters are the parameters for driving the display panel to emit light; the first dimming mode is the dimming mode of the display panel in the first display brightness interval, the second dimming mode is the dimming mode of the display panel in the brightness interval to be displayed, and the minimum display brightness in the first display brightness interval is greater than the maximum display brightness in the brightness interval to be displayed; in a picture refresh cycle of the first dimming mode, the duty cycle of the light emitting control signal of the display panel is the first duty cycle; in a picture refresh cycle of the second dimming mode, the duty cycle of the light emitting control signal is the second duty cycle, and the first duty cycle is different from the second duty cycle.

[0077] On the display panel of an electronic device such as a mobile phone, a control for adjusting the brightness of the display panel (Display Brightness Value, DBV) can be pre-set, and the control can respond to user operations and adjust the display brightness of the display panel within a preset display brightness range. For example, when the light is strong, the user can increase the display brightness of the display panel so that the user can see the content displayed on the display panel clearly; when the light is weak, the user can reduce the display brightness of the display panel to avoid the user's eyes being hurt by the large difference in brightness between the ambient light and the display panel.

[0078] Based on the display characteristics of the display panel, the dimming mode within the first display brightness interval is the first dimming mode, and the dimming mode within the to-be-displayed interval is the second dimming mode. The minimum display brightness of the first display brightness interval is greater than the maximum display brightness of the to-be-displayed brightness interval. For example, the first display brightness interval is a display brightness interval with a display brightness greater than 90 nit, and the to-be-displayed brightness interval is a display brightness interval with a display brightness less than or equal to 90 nit. In addition, in a picture refresh cycle of the first dimming mode, the duty cycle of the light emitting control signal of the display panel is the first duty cycle; in a picture refresh cycle of the second dimming mode, the duty cycle of the light emitting control signal is the second duty cycle, and the first duty cycle is different from the second duty cycle. In some examples, the first dimming mode is a DC dimming mode, the second dimming mode is a PWM dimming mode, and the first duty cycle is smaller than the second duty cycle.

[0079] It should be noted that, the larger the duty cycle of the light emitting control signal is, the longer the light emitting time of the display panel is in one picture refresh cycle.

[0080] The display panel can respond to the user's operation of switching the first display brightness to the brightness to be displayed, for example, adjusting the display brightness from 150nit to 90nit, and the dimming mode of the display panel is switched from the first dimming module to the second dimming mode, for example, switching from the DC dimming mode to the PWM dimming mode. By acquiring the first display brightness, the brightness to be displayed and the original display parameters of the display panel, the first display brightness is the display brightness currently actually displayed by the display panel, the brightness to be displayed is the target brightness that the display panel needs to display, and the original display parameters are the display parameters of the display panel based on the brightness to be displayed, for example, the original display parameters may include the register value of the display panel at the brightness to be displayed or the duty cycle of the light control signal. Here, the register value of the display panel at the brightness to be displayed is the value debugged by the display panel during the gamma test, and the duty cycle of the light control signal of the display panel at the brightness to be displayed is the value pre-calculated by the control system of the display panel based on the brightness to be displayed. It can be understood that the original display parameters are the display parameters before compensation.

[0081] S120: Determine a target display brightness deviation based on the first display brightness and the brightness to be displayed.

[0082] The target display brightness deviation may be determined based on the difference between the first display brightness and the brightness to be displayed. For example, if the first display brightness is 150 nit and the brightness to be displayed is 90 nit, the target display brightness deviation is 150 nit-90 nit=60 nit.

[0083] S130: Determine a target compensation value corresponding to the target display brightness deviation based on a preset correspondence relationship between the display brightness deviation and the compensation value.

[0084] The corresponding relationship between the display brightness deviation and the compensation value may be preset, and the target compensation value corresponding to the target display brightness deviation may be determined based on the target display brightness deviation. For example, the compensation value of the register value corresponding to the target display brightness deviation may be determined based on the corresponding relationship between the display brightness deviation and the compensation value, or the compensation value of the duty cycle of the light emitting control signal corresponding to the target display brightness deviation may be determined based on the corresponding relationship between the display brightness deviation and the compensation value.

[0085] S140: Compensating the original display parameters based on the target compensation values ​​to obtain target display parameters.

[0086] After determining the target compensation value, the original display parameter can be compensated based on the target compensation value to obtain the target display parameter, and then the display panel can be driven to emit light based on the target display parameter. For example, the register value can be compensated based on the compensation value of the register value, or the duty cycle of the light-emitting control signal can be compensated based on the compensation value of the duty cycle of the light-emitting control signal. The register value is compensated based on the compensation value of the register pointer to obtain the target register value, and then the display panel is driven to emit light based on the target register value, or the duty cycle of the light-emitting control signal is compensated based on the compensation value of the duty cycle of the light-emitting control signal to obtain the duty cycle of the target light-emitting control signal, and the display panel is started to emit light based on the duty cycle of the target light-emitting control signal.

[0087] In the embodiment of the present application, when the display panel is switched from the first dimming mode to the second dimming mode, the first display brightness, the brightness to be displayed and the original display parameters of the display panel in the second dimming mode are obtained, and the target display brightness deviation of the display panel is determined by the first display brightness and the brightness to be displayed. The target display brightness deviation can characterize the deviation between the brightness of the current display panel and the brightness to be displayed. Based on the correspondence between the display brightness deviation and the compensation value set in advance, the target compensation value corresponding to the target display brightness deviation is determined, and the original display parameters are compensated based on the target compensation value to obtain the target display parameters. When the display panel switches the dimming mode, the target display parameters can be determined based on the target brightness display deviation of the display panel, so that the target display parameters drive the display panel to emit light, eliminate the brightness distortion of the display panel, and improve the user experience.

[0088] In some embodiments, after compensating the original display parameters of the display panel of the first display brightness, that is, when the current display brightness of the display panel is the brightness to be displayed, the user may further lower the display brightness, for example, the user lowers 90nit to 80nit. For each second sub-display brightness in the second display brightness interval except the above-mentioned brightness to be displayed, the second sub-display parameter corresponding to each second sub-display brightness can be determined based on the correspondence between the display brightness and the display parameter predetermined by the control system, and the display panel is driven to emit light based on the second sub-display parameter. For example, the control system can determine the second sub-gamma register value corresponding to 80nit based on the correspondence between the display brightness and the gamma register value included in the gamma curve, and drive the display panel to emit light based on the second sub-gamma register value. Here, the above-mentioned gamma curve is a curve determined based on the gamma register values ​​at the two display brightness endpoints of the second display brightness interval, such as a gamma curve determined by the gamma register value of 50nit and the gamma register value of 90nit in the brightness interval of 50nit-90nit.

[0089] In some embodiments, the original display parameters include a target display grayscale, the first display brightness includes a first display brightness of the display panel at the target display grayscale, the brightness to be displayed includes a brightness to be displayed of the display panel at the target display grayscale, the target display brightness deviation includes a target display brightness deviation of the display panel at the target display grayscale, and the corresponding relationship includes a corresponding relationship between display brightness of multiple display grayscales and compensation values.

[0090] The original display parameters may include a target display grayscale. When the display panel switches the display brightness in response to a user operation and switches the dimming mode, the first display brightness of the display panel at the target display grayscale and the brightness to be displayed of the display panel at the target display grayscale can be obtained, and the target display brightness deviation of the display panel at the target display grayscale can be determined based on the first display brightness of the display panel at the target display grayscale and the brightness to be displayed of the display panel at the target display grayscale.

[0091] Determining a target compensation value corresponding to a target display brightness deviation based on a preset corresponding relationship between a display brightness deviation and a compensation value includes:

[0092] Based on the preset correspondence between the display brightness of the display panel at a plurality of display grayscales and the compensation value, a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale is determined.

[0093] Here, based on different display gray scales, the correspondence between the display brightness deviation and the compensation value of the display panel at multiple different display gray scales can be set. Based on the pre-set correspondence between the display brightness deviation and the compensation value of the display panel at multiple display gray scales, the target compensation value corresponding to the target display brightness deviation of the display panel at the target display gray scale can be determined, so as to determine the target compensation value corresponding to the target display gray scale and the target display brightness deviation of the display panel.

[0094] The embodiment of the present application obtains the first display brightness of the display panel at the target display grayscale and the brightness to be displayed at the target display grayscale, so as to determine the target display brightness deviation of the display panel at the target display grayscale, and determines the target compensation value corresponding to the target display brightness deviation of the display panel at the target display grayscale based on the pre-set correspondence between the display brightness deviations of the display panel at multiple display grayscales and the compensation value. This can compensate for the original display parameters of the display panel at different display grayscales, eliminate the brightness distortion caused by the display panel after switching the dimming mode, and improve the user experience.

[0095] In some embodiments, Figure 2 As shown, the original display parameter includes a register value, and the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at multiple display grayscales and a first compensation value, and the first compensation value is a compensation value of the register value;

[0096] Step S130: determining a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale based on a preset correspondence between display brightness deviations of the display panel at multiple display grayscales and compensation values, including:

[0097] S210: Determine a first target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence between display brightness deviations of the display panel at multiple display gray scales and the first compensation value.

[0098] Here, the original display parameters may include a register value, which is a register value corresponding to the brightness to be displayed of the target display grayscale. For example, when the display brightness of the display panel at the target display grayscale changes from 150 nit in the DC dimming mode to 90 nit in the PWM dimming mode, the register value corresponding to the target display grayscale of 90 nit can be obtained. The register value corresponding to the target display grayscale of 90 nit is the value calculated by the control system of the display panel based on the gamma curve.

[0099] The first target compensation value corresponding to the target display brightness deviation of the display panel at the target display gray scale may be determined based on the predetermined correspondence between the display brightness deviations of the display panel at multiple display gray scales and the first compensation value.

[0100] Step S140: compensating the original display parameters based on the target compensation value to obtain the target display parameters, including:

[0101] S220: Compensating the register value based on the first target compensation value to obtain a target display parameter.

[0102] The register value may be compensated based on the first target compensation value to obtain a target display parameter. In some examples, the target display parameter may be determined based on a product of the first target compensation value and the register value.

[0103] In some embodiments, the register value includes an R register value, a G register value, and a B register value, the first compensation value includes the compensation value of the R register value, the compensation value of the G register value, and the compensation value of the B register value, and the R register value, the G register value, and the B register value are compensated based on the compensation value of the R register value, the compensation value of the G register value, and the compensation value of the B register value, respectively, to obtain the target display parameters.

[0104] In the embodiment of the present application, the original display parameters are set to include register values, and the corresponding relationship includes the corresponding relationship between the display brightness deviation of different display grayscales and the first compensation value. Based on the above corresponding relationship, the first target compensation value corresponding to the display brightness deviation of the target display grayscale is determined, and the register value is compensated based on the first target compensation value to obtain the target display parameters. Thereafter, the display panel is driven to emit light based on the target display parameters, thereby eliminating the brightness distortion generated by the display panel after switching the dimming mode.

[0105] In some embodiments, Figure 3 As shown, the original display parameter includes the duty cycle of the light emitting control signal, and the corresponding relationship includes the corresponding relationship between the display brightness deviation of the display panel at multiple display grayscales and the second compensation value, and the second compensation value is the compensation value of the duty cycle of the light emitting control signal;

[0106] Step S130: determining a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale based on a preset correspondence between display brightness deviations of the display panel at multiple display grayscales and compensation values, including:

[0107] S310: Determine a second target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence between display brightness deviations of the display panel at multiple display gray scales and the second compensation value.

[0108] The original display parameters may include the duty cycle of the light control signal. The register value is the duty cycle of the light control signal corresponding to the brightness to be displayed of the target display grayscale. For example, when the display brightness of the display panel at the target display grayscale changes from 150 nit in the DC dimming mode to 90 nit in the PWM dimming mode, the duty cycle of the light control signal corresponding to 90 nit of the target display grayscale can be obtained. Here, the duty cycle of the light control signal corresponding to the above 90 nit can be calculated based on the control system of the display panel.

[0109] The second target compensation value corresponding to the target display brightness deviation of the display panel at the target display gray scale may be determined based on the predetermined correspondence between the display brightness deviation of the display panel at multiple display gray scales and the second compensation value.

[0110] Step S140: compensating the original display parameters based on the target compensation value to obtain the target display parameters, including:

[0111] S320: Compensating the duty cycle of the light emitting control signal based on the second target compensation value to obtain a target display parameter.

[0112] The duty cycle of the light emitting control signal may be compensated based on the second target compensation value to obtain a target display parameter. In some examples, the target display parameter may be determined based on the second target compensation value and the duty cycle of the light emitting control signal.

[0113] In some embodiments, when compensating the original display parameters corresponding to the brightness to be displayed, both the register value and the duty cycle of the light emitting control signal may be compensated to eliminate brightness distortion and make the brightness change of the display panel smoother.

[0114] In the embodiment of the present application, the original display parameters are set to include a duty cycle of a light-emitting control signal, and the corresponding relationship includes a corresponding relationship between a plurality of display brightness deviations of different display grayscales and a second compensation value. Based on the above corresponding relationship, a second target compensation value corresponding to the display brightness deviation is determined, and the duty cycle of the light-emitting control signal is compensated based on the second target compensation value to obtain a target display parameter. Thereafter, the display panel is driven to emit light based on the target display parameter, thereby eliminating brightness distortion generated by the display panel after switching the dimming mode.

[0115] In some embodiments, the original display parameters include a gamma resistor string supply voltage such as VGMP and VGSP, and the corresponding relationship includes a corresponding relationship between a display brightness deviation of a plurality of different display grayscales and a third compensation value, the third compensation value being a compensation value of the gamma resistor string supply voltage. Based on a predetermined corresponding relationship between the display brightness deviation of the display panel at a plurality of display grayscales and the third compensation value, a third target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale can be determined, and the gamma resistor string supply voltage is compensated by the third target compensation value to eliminate the brightness distortion of the display panel.

[0116] In some embodiments, the original display parameters include the power supply voltage of the display panel, such as ELVSS and ELVDD, and the corresponding relationship includes the display brightness deviation of multiple different display gray scales and the fourth compensation value. The third compensation value is the compensation value of the power supply voltage of the display panel. Based on the predetermined correspondence between the display brightness deviation of the display panel at multiple display gray scales and the fourth compensation value, the fourth target compensation value corresponding to the target display brightness deviation of the display panel at the target display gray scale can be determined. The power supply voltage of the display panel is compensated by the third target compensation value to eliminate the brightness distortion of the display panel.

[0117] As can be seen from the above, brightness distortion will occur at the moment when the display panel switches the dimming mode. For example, at the moment when the display panel switches from 150nit to 90nit, the display panel will experience brightness distortion. In the prior art, when testing the display panel, a group of gamma adjustments are usually set at the boundaries of the low display brightness range, such as the brightness range of 50nit-90nit. For example, a group of gamma adjustments are set at 90nit, and a group of gamma adjustments are set at 50nit. At the same time, in order to eliminate the brightness distortion, a group of gamma adjustments are set at 89.9nit, which can eliminate the brightness distortion that occurs when the display panel switches the dimming mode. However, it can be imagined that setting up a group of gamma adjustments separately will increase the test time of the display panel and reduce the production capacity of the display panel. The above-mentioned embodiment of the present application can eliminate the brightness distortion by adjusting the original display parameters of the display panel without setting up an additional group of gamma adjustments when testing the display panel. Based on this, when the display panel is tested, a corresponding relationship between the display brightness deviation and the compensation value can be constructed to eliminate the brightness distortion while improving the display panel production capacity. Figure 4 As shown, step S110: when the first dimming mode of the display panel is switched to the second dimming mode, before obtaining the first display brightness, the brightness to be displayed and the original display parameters of the display panel in the second dimming mode, the compensation method further includes:

[0118] S410: Obtaining a second display brightness of the display panel at a plurality of display grayscales in a second dimming mode.

[0119] When testing the display panel, the control system of the display panel can respond to user operations to set the display brightness of the display panel to the second display brightness in the second dimming mode. Here, the second display brightness is the actual display brightness of the display panel when the first dimming mode of the display panel is switched to the second dimming mode. The second display brightness includes the second display brightness of the display panel at multiple display gray levels.

[0120] S420: Adjust the register value of each display panel displaying grayscale, wherein the register value is a register value corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the second display brightness of each display panel displaying grayscale and the brightness to be displayed is less than or equal to a first preset threshold value, thereby obtaining multiple first compensation values ​​of the display panel in multiple display grayscales in the second dimming mode.

[0121] For each display grayscale, the register value of the display panel can be adjusted, and the register value is the register value corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the second display brightness of the display panel of each display grayscale and the brightness to be displayed is less than or equal to the first preset threshold value, and multiple first compensation values ​​of the display panel in multiple display grayscales in the second dimming mode are obtained. For example, when the display panel switches from 150nit to 90nit, the brightness to be displayed is 90nit, and the actual display brightness of the display panel is the display brightness with brightness distortion, and the register value corresponding to 90nit of each display grayscale can be adjusted, by multiplying the register value by different compensation values, such as multiplying by 99%, 98%, 98%... etc., until the display brightness deviation between the second display brightness of the display panel of each display grayscale and the brightness to be displayed of 90nit is less than or equal to the first preset threshold value, and multiple first compensation values ​​of the display panel in multiple display grayscales are obtained.

[0122] S430: Determine a correspondence between the display brightness deviations of the display panel at multiple display grayscales and the first compensation values ​​based on the multiple first compensation values ​​and the display brightness deviations.

[0123] Based on the multiple first compensation values ​​and display brightness deviations, the corresponding relationship between the display brightness deviations and the first compensation values ​​of the display panel at multiple display grayscales can be determined. It is conceivable that at each display grayscale, the display brightness deviation corresponds to the first compensation value one by one.

[0124] In the embodiment of the present application, when the display panel is tested, the second display brightness of the display panel in different display grayscales in the second dimming mode when the dimming mode is switched from the first dimming mode to the second dimming mode is obtained, and the register value of each display panel displaying the grayscale is adjusted until the display brightness deviation between the second display brightness of each display panel displaying the grayscale and the brightness to be displayed is less than or equal to the first preset threshold value, thereby obtaining multiple first compensation values ​​of the display panel in multiple display grayscales in the second dimming mode, and eliminating the brightness distortion of the display panel by adjusting the register value, so that the display panel does not need to add a set of gamma adjustments during testing, thereby improving the production capacity. Afterwards, based on the multiple first compensation values ​​and the display brightness deviation, the corresponding relationship between the display brightness deviation of the display panel in multiple display grayscales and the first compensation value is determined, so that when the display panel is displayed, the brightness distortion of the display panel caused by the dimming mode switching can be eliminated based on the corresponding relationship, thereby improving the user experience.

[0125] In some embodiments, Figure 5 As shown, when the first dimming mode of the display panel is switched to the second dimming mode, before obtaining the first display brightness, the brightness to be displayed and the original display parameters of the display panel in the second dimming mode, the compensation method further includes:

[0126] S510: Obtaining a third display brightness of the display panel in a plurality of display grayscales in a second dimming mode.

[0127] When testing the display panel, the display panel can respond to user operation to set the display brightness of the display panel to the third display brightness in the second dimming mode. The third display brightness is the actual display brightness of the display panel when the first dimming mode of the display panel is switched to the second dimming mode. The third display brightness includes the third display brightness of the display panel in multiple display gray levels.

[0128] S520: Adjust the duty cycle of the light control signal of the display panel for each display grayscale, wherein the duty cycle of the light control signal is a duty cycle corresponding to the brightness to be displayed for each display grayscale, until a display brightness deviation between a third display brightness of the display panel for each display grayscale and the brightness to be displayed is less than or equal to a second preset threshold, thereby obtaining multiple second compensation values ​​of the display panel in the second dimming mode at multiple display grayscales.

[0129] For each display grayscale, the duty cycle of the light control signal of the display panel can be adjusted, and the duty cycle of the light control signal is the duty cycle corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the third display brightness of the display panel of each display grayscale and the brightness to be displayed is less than or equal to the second preset threshold, and multiple first compensation values ​​of the display panel in multiple display grayscales in the second dimming mode are obtained. For example, when the display panel switches from 150nit to 90nit, the brightness to be displayed is 90nit, and the actual display brightness of the display panel is the display brightness with brightness distortion, and the duty cycle of the light control signal corresponding to 90nit of each display grayscale can be adjusted, by multiplying the register value by different compensation values, such as multiplying by 99%, 100%, 101%... etc., until the display brightness deviation between the third display brightness of the display panel of each display grayscale and the brightness to be displayed of 90nit is less than or equal to the second preset threshold, and multiple second compensation values ​​of the display panel in multiple display grayscales are obtained.

[0130] S530: Based on the plurality of second compensation values ​​and the display brightness deviations, determining a correspondence between the display brightness deviations of the display panel at a plurality of display grayscales and the second compensation values.

[0131] Based on the multiple second compensation values ​​and the display brightness deviations, the corresponding relationship between the display brightness deviations and the second compensation values ​​of the display panel at multiple display grayscales can be determined. It is conceivable that at each display grayscale, the display brightness deviation corresponds to the second compensation value one by one.

[0132] In the embodiment of the present application, when the display panel is tested, the third display brightness of the display panel in different display grayscales in the second dimming mode when the dimming mode is switched from the first dimming mode to the second dimming mode is obtained, and the duty cycle of the light control signal of the display panel of each display grayscale is adjusted until the display brightness deviation between the third display brightness of the display panel of each display grayscale and the brightness to be displayed is less than or equal to the second preset threshold value, and multiple second compensation values ​​of the display panel in multiple display grayscales in the second dimming mode are obtained, and the brightness distortion of the display panel is eliminated by adjusting the duty cycle of the light control signal, so that the display panel does not need to add a set of gamma adjustments during testing, and the brightness distortion is eliminated while saving the test time of the display panel, which is conducive to improving the production capacity of the display panel. Then, based on the multiple second compensation values ​​and the display brightness deviation, the corresponding relationship between the display brightness deviation of the display panel in multiple display grayscales and the first compensation value is determined, so that when the display panel is displayed, the brightness distortion caused by the dimming mode switching of the display panel can be eliminated based on the corresponding relationship, thereby improving the user experience.

[0133] In some embodiments, when determining the multiple first compensation values ​​as described above, the second display brightness of the multiple display panels at the target display grayscale can be obtained, and the register value of each display panel at the target display grayscale is adjusted until the display brightness deviation between the second display brightness of each display panel at the target display grayscale and the brightness to be displayed is less than or equal to the first preset threshold value, and the multiple first compensation values ​​of the multiple display panels at the target display grayscale in the second dimming mode are obtained, and the average value of the multiple first compensation values ​​of the multiple display panels at the target display grayscale is obtained to determine the first compensation value of the target display panel at the target display grayscale. Similarly, the second compensation value of the target display panel at the target display grayscale can be obtained based on the above-mentioned method category. Through the above-mentioned method, the accuracy of the first compensation value and the second compensation value determined is improved, so that after the register value and the duty cycle of the light-emitting control signal are compensated based on the first compensation value and the second compensation value, respectively, the target display parameter obtained is more accurate, and the smoothness of the display brightness switching when the display panel switches the dimming mode is improved.

[0134] In some embodiments, Figure 6 As shown, when the display panel switches the dimming mode, after determining the target display brightness deviation based on the first display brightness and the brightness to be displayed, the register value compensation and the duty cycle compensation of the light emitting control signal can be performed on the display panel at the same time to improve the display performance of the display panel.

[0135] It can be imagined that the first display brightness, the brightness to be displayed and the original display parameters of the above-mentioned display panel can be understood as the first display brightness, the brightness to be displayed and the original display parameters of the sub-pixels on the display panel, and the register value of the above-mentioned display panel and the duty cycle of the light-emitting control signal can be understood as the register value and the duty cycle of the light-emitting control signal of each sub-pixel. When the display panel is brightness compensated based on the compensation value, it can be understood as brightness compensation for each sub-pixel on the display panel.

[0136] Based on the same inventive concept, the present application also provides a compensation device for a display panel. In some embodiments, Figure 7 As shown, an embodiment of the present application provides a compensation device for a display panel, comprising:

[0137] The acquisition module 701 is used to acquire the first display brightness, the brightness to be displayed and the original display parameters of the display panel in the second dimming mode when the display panel switches from the first dimming mode to the second dimming mode, where the original display parameters are the parameters for driving the light emission of the display panel; the first dimming mode is the dimming mode of the display panel in the first display brightness interval, the second dimming mode is the dimming mode of the display panel in the brightness interval to be displayed, and the minimum display brightness in the first display brightness interval is greater than the maximum display brightness in the brightness interval to be displayed; in one picture refresh cycle of the first dimming mode, the duty cycle of the light emission control signal of the display panel is the first duty cycle; in one picture refresh cycle of the second dimming mode, the duty cycle of the light emission control signal is the second duty cycle, and the first duty cycle is different from the second duty cycle;

[0138] A determination module 702, configured to determine a target display brightness deviation based on the first display brightness and the brightness to be displayed;

[0139] The determination module 702 is further used to determine a target compensation value corresponding to the target display brightness deviation based on a preset correspondence relationship between the display brightness deviation and the compensation value;

[0140] The compensation module 703 is used to compensate the original display parameters based on the target compensation value to obtain the target display parameters.

[0141] In the embodiment of the present application, when the display panel switches from the first dimming mode to the second dimming mode, the acquisition module acquires the first display brightness, the brightness to be displayed, and the original display parameters of the display panel in the second dimming mode, and the determination module determines the target display brightness deviation of the display panel based on the first display brightness and the brightness to be displayed, and determines the target compensation value corresponding to the target display brightness deviation based on the correspondence between the preset display brightness deviation and the compensation value, and compensates the original display parameters based on the target compensation value through the compensation module to obtain the target display parameters. When the display panel switches the dimming mode, the target display parameters can be determined based on the target brightness display deviation of the display panel, so that the target display parameters drive the display panel to emit light, eliminate the brightness distortion of the display panel, and improve the user experience.

[0142] In some embodiments, the original display parameter includes a target display grayscale, the first display brightness includes a first display brightness of the display panel at the target display grayscale, the brightness to be displayed includes a brightness to be displayed of the display panel at the target display grayscale, the target display brightness deviation includes a target display brightness deviation of the display panel at the target display grayscale, and the corresponding relationship includes a corresponding relationship between display brightness of multiple display grayscales and compensation values;

[0143] Identify modules, specifically for:

[0144] Based on the preset correspondence between the display brightness of the display panel at a plurality of display grayscales and the compensation value, a target compensation value corresponding to a target display brightness deviation of the display panel at a target display grayscale is determined.

[0145] In some embodiments, the original display parameter includes a register value, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at a plurality of display grayscales and a first compensation value, and the first compensation value is a compensation value of the register value;

[0146] Identify modules, specifically for:

[0147] Determining a first target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence relationship between display brightness deviations of the display panel at multiple display gray scales and the first compensation value;

[0148] Confirmation module, specifically used for:

[0149] The register value is compensated based on the first target compensation value to obtain a target display parameter, where the target display parameter includes a target register value.

[0150] In some embodiments, the original display parameter includes a duty cycle of the light emitting control signal, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at a plurality of display grayscales and a second compensation value, and the second compensation value is a compensation value of the duty cycle of the light emitting control signal;

[0151] Identify modules, specifically for:

[0152] Determining a second target compensation value corresponding to a target display brightness deviation of the display panel at a target display gray scale based on a preset correspondence between display brightness deviations of the display panel at multiple display gray scales and compensation values;

[0153] Identify modules, specifically for:

[0154] The duty cycle of the light emitting control signal is compensated based on the second target compensation value to obtain a target display parameter, where the target display parameter includes the duty cycle of the target light emitting control signal.

[0155] In some embodiments, the acquisition module is further configured to:

[0156] Acquire a second display brightness of the display panel at multiple display grayscales in a second dimming mode;

[0157] Adjusting the register value of each display panel displaying grayscale, the register value being a register value corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the second display brightness of each display panel displaying grayscale and the brightness to be displayed is less than or equal to the first preset threshold, and obtaining a plurality of first compensation values ​​of the display panel in the second dimming mode at a plurality of display grayscales;

[0158] Based on the plurality of first compensation values ​​and the display brightness deviations, a corresponding relationship between the display brightness deviations of the display panel at a plurality of display grayscales and the first compensation values ​​is determined.

[0159] In some embodiments, the acquisition module is further configured to:

[0160] Acquire a third display brightness of the display panel at multiple display grayscales in the second dimming mode;

[0161] Adjusting the duty cycle of the light emitting control signal of each display panel displaying grayscale, wherein the duty cycle of the light emitting control signal is a duty cycle corresponding to the brightness to be displayed of each display grayscale, until the display brightness deviation between the third display brightness of each display panel displaying grayscale and the brightness to be displayed is less than or equal to the second preset threshold, thereby obtaining a plurality of second compensation values ​​of the display panel in the second dimming mode at a plurality of display grayscales;

[0162] Based on the plurality of second compensation values ​​and the display brightness deviation, determining the display brightness of the display panel at the plurality of display gray levels

[0163] The device of the above embodiment is used to implement the corresponding display panel compensation method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0164] Figure 8 A schematic diagram of the hardware structure of a display device provided in an embodiment of the application.

[0165] The display device 800 may include a processor 801 and a memory 802 storing computer program instructions.

[0166] Specifically, the processor 801 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0167] The memory 802 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 802 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, the memory 802 may include a removable or non-removable (or fixed) medium. In appropriate cases, the memory 802 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 802 is a non-volatile solid-state memory.

[0168] In certain embodiments, memory 802 includes a read-only memory (ROM). The ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of the above, where appropriate.

[0169] The memory may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical or other physical / tangible memory storage device. Thus, typically, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to the first aspect of the present application.

[0170] The processor 801 implements any one of the display panel compensation methods in the above embodiments by reading and executing computer program instructions stored in the memory 802 .

[0171] In one example, the display device may further include a communication interface 803 and a bus 804. Figure 8 The processor 801, the memory 802, and the communication interface 803 are connected via a bus 804 and communicate with each other.

[0172] The communication interface 803 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0173] Bus 804 includes hardware, software or both, and the parts of online data flow billing equipment are coupled to each other. For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front-end bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 804 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the application considers any suitable bus or interconnection.

[0174] The display device of the above embodiment is used to implement the corresponding display panel compensation method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0175] In addition, in combination with the compensation method of the display panel in the above embodiment, the embodiment of the present application can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the compensation methods of the display panel in the above embodiment is implemented.

[0176] In addition, in combination with the display panel compensation method in the above embodiment, the present application embodiment can provide a computer program product to implement. When the computer program product instructions are executed by a processor of a display device, any display panel compensation method in the above embodiment is implemented.

[0177] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0178] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0179] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or devices based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0180] The above reference is according to the method of the embodiment of the present application, the flow chart of the device (device) and the computer program product and / or the block diagram described various aspects of the present application.It should be understood that each square box in the flow chart and / or the block diagram and the combination of each square box in the flow chart and / or the block diagram can be realized by computer program instructions.These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the realization of the function / action specified in one or more square boxes of the flow chart and / or the block diagram.Such a processor can be but is not limited to a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.It can also be understood that each square box in the block diagram and / or the flow chart and the combination of the square boxes in the block diagram and / or the flow chart can also be realized by the dedicated hardware that performs the specified function or action, or can be realized by the combination of dedicated hardware and computer instructions.

[0181] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described devices, modules and units can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application.

Claims

1. A compensation method for a display panel, characterized in that: include: When the display panel switches from the first dimming mode to the second dimming mode, a first display brightness, a brightness to be displayed, and an original display parameter of the display panel in the second dimming mode are obtained, wherein the original display parameter is a parameter for driving the light emission of the display panel; the first dimming mode is a dimming mode of the display panel in a first display brightness interval, the second dimming mode is a dimming mode of the display panel in a brightness interval to be displayed, and the minimum display brightness of the first display brightness interval is greater than the maximum display brightness of the brightness interval to be displayed; In one picture refresh cycle of the first dimming mode, the duty cycle of the light emitting control signal of the display panel is a first duty cycle; In one of the picture refresh cycles of the second dimming mode, the duty cycle of the light emitting control signal is a second duty cycle, and the first duty cycle is different from the second duty cycle; Determining a target display brightness deviation based on the first display brightness and the brightness to be displayed; Determining a target compensation value corresponding to the target display brightness deviation based on a preset correspondence between the display brightness deviation and the compensation value; The original display parameters are compensated based on the target compensation values ​​to obtain target display parameters.

2. The display panel compensation method according to claim 1, characterized in that: The original display parameter includes a target display grayscale, the first display brightness includes a first display brightness of the display panel at the target display grayscale, the brightness to be displayed includes a brightness to be displayed of the display panel at the target display grayscale, the target display brightness deviation includes the target display brightness deviation of the display panel at the target display grayscale, and the corresponding relationship includes a corresponding relationship between display brightness of multiple display grayscales and compensation values; The determining the target compensation value corresponding to the target display brightness deviation based on the preset corresponding relationship between the display brightness deviation and the compensation value includes: The target compensation value corresponding to the target display brightness deviation of the display panel at the target display gray scale is determined based on a preset correspondence between the display brightness of the display panel at a plurality of display gray scales and the compensation value.

3. The display panel compensation method according to claim 2, characterized in that: The original display parameter includes a register value, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at a plurality of display grayscales and a first compensation value, and the first compensation value is a compensation value of the register value; The determining the target compensation value corresponding to the target display brightness deviation of the display panel at the target display grayscale based on the preset correspondence between the display brightness deviation of the display panel at multiple display grayscales and the compensation value includes: Determining a first target compensation value corresponding to the target display brightness deviation of the display panel at the target display grayscale based on a preset correspondence relationship between the display brightness deviation of the display panel at multiple display grayscales and the first compensation value; The compensating the original display parameter based on the target compensation value to obtain the target display parameter includes: The register value is compensated based on the first target compensation value to obtain the target display parameter, where the target display parameter includes a target register value.

4. The display panel compensation method according to claim 2, characterized in that: The original display parameter includes a duty cycle of the light emitting control signal, the corresponding relationship includes a corresponding relationship between a display brightness deviation of the display panel at a plurality of display grayscales and a second compensation value, and the second compensation value is a compensation value of the duty cycle of the light emitting control signal; The determining the target compensation value corresponding to the target display brightness deviation of the display panel at the target display grayscale based on the preset correspondence between the display brightness deviation of the display panel at multiple display grayscales and the compensation value includes: Determining a second target compensation value corresponding to the target display brightness deviation of the display panel at the target display grayscale based on a preset correspondence between the display brightness deviation of the display panel at multiple display grayscales and the second compensation value; The compensating the original display parameter based on the target compensation value to obtain the target display parameter includes: The duty cycle of the light emitting control signal is compensated based on the second target compensation value to obtain the target display parameter, where the target display parameter includes the duty cycle of the target light emitting control signal.

5. The display panel compensation method according to claim 3, characterized in that: In the case where the first dimming mode of the display panel is switched to the second dimming mode, before obtaining the first display brightness, the brightness to be displayed and the original display parameters of the display panel in the second dimming mode, the compensation method further includes: Acquire a second display brightness of the display panel at a plurality of display grayscales in the second dimming mode; Adjusting the register value of the display panel for each display grayscale, the register value being a register value corresponding to the brightness to be displayed for each display grayscale, until a display brightness deviation between the second display brightness of the display panel for each display grayscale and the brightness to be displayed is less than or equal to a first preset threshold, and obtaining a plurality of first compensation values ​​of the display panel in the second dimming mode at a plurality of display grayscales; Based on the plurality of first compensation values ​​and the display brightness deviation, a corresponding relationship between the display brightness deviation of the display panel at a plurality of display grayscales and the first compensation value is determined.

6. The display panel compensation method according to claim 4, characterized in that: In the case where the first dimming mode of the display panel is switched to the second dimming mode, before obtaining the first display brightness, the brightness to be displayed and the original display parameters of the display panel in the second dimming mode, the compensation method further includes: Acquire a third display brightness of the display panel at multiple display grayscales in the second dimming mode; Adjusting the duty cycle of the light emitting control signal of the display panel displaying each gray scale, wherein the duty cycle of the light emitting control signal is a duty cycle corresponding to the brightness to be displayed of each gray scale, until the display brightness deviation between the third display brightness of the display panel displaying each gray scale and the brightness to be displayed is less than or equal to a second preset threshold, and obtaining a plurality of second compensation values ​​of the display panel in the second dimming mode at a plurality of display gray scales; Based on the plurality of second compensation values ​​and the display brightness deviation, a corresponding relationship between the display brightness deviation of the display panel at a plurality of display grayscales and the second compensation value is determined.

7. A compensation device for a display panel, characterized in that: include: an acquisition module, configured to acquire, when the display panel switches from a first dimming mode to a second dimming mode, a first display brightness, a brightness to be displayed, and an original display parameter of the display panel in the second dimming mode, wherein the original display parameter is a parameter for driving the light emission of the display panel; the first dimming mode is a dimming mode of the display panel in a first display brightness interval, the second dimming mode is a dimming mode of the display panel in a brightness interval to be displayed, and the minimum display brightness of the first display brightness interval is greater than the maximum display brightness of the brightness interval to be displayed; In one picture refresh cycle of the first dimming mode, the duty cycle of the light emitting control signal of the display panel is a first duty cycle; In one of the picture refresh cycles of the second dimming mode, the duty cycle of the light emitting control signal is a second duty cycle, and the first duty cycle is different from the second duty cycle; A determination module, configured to determine a target display brightness deviation based on the first display brightness and the brightness to be displayed; The determination module is further used to determine the target compensation value corresponding to the target display brightness deviation based on a preset corresponding relationship between the display brightness deviation and the compensation value; The compensation module is used to compensate the original display parameters based on the target compensation value to obtain target display parameters.

8. A display device, characterized in that: The device comprises: a processor, and a memory storing computer program instructions; The processor reads and executes the computer program instructions to implement the compensation method for a display panel according to any one of claims 1 to 6.

9. A readable storage medium, characterized in that: The readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the compensation method for a display panel according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is processed by a processor, the compensation method for a display panel as claimed in any one of claims 1 to 6 is implemented.

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