CN112885298A - Driving method, device, chip, display panel and electronic equipment - Google Patents
Driving method, device, chip, display panel and electronic equipment Download PDFInfo
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- CN112885298A CN112885298A CN202110083221.XA CN202110083221A CN112885298A CN 112885298 A CN112885298 A CN 112885298A CN 202110083221 A CN202110083221 A CN 202110083221A CN 112885298 A CN112885298 A CN 112885298A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
Abstract
The disclosure relates to a driving method, a driving device, a chip, a display panel and an electronic apparatus, wherein the method comprises the following steps: and when the check codes corresponding to the continuous K frames of display data are equal, adjusting the display data corresponding to the check codes and the like to obtain adjusted display data, and determining driving parameters according to the adjusted display data to drive the display panel to display the adjusted display data. The display panel can be prevented from being aged and damaged due to long-time luminescence, the screen burning is avoided, the service life of the display panel is prolonged, multi-frame display data are verified in a preset verification mode, displayed pictures can be accurately detected, whether the display pictures of the display panel are changed or not is determined, and the display is prevented from being adjusted by mistake and influenced.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a driving method, a driving device, a chip, a display panel, and an electronic apparatus.
Background
With the development of science and technology, the living standard of people is continuously improved, various types of electronic devices with display function are more and more favored, however, the service life of the current display panel is limited, when a picture (especially a static picture) is displayed for a long time, due to the long-time luminescence of the display tube in the display panel, the picture is aged and damaged, namely, the phenomenon of screen burning is often said.
Disclosure of Invention
In view of this, the present disclosure provides a driving method, a driving apparatus, a chip, a display panel and an electronic device, so as to solve the problem of aging and damage, that is, burn-in, of the display panel due to long-time light emission of the display tube.
According to an aspect of the present disclosure, there is provided a driving method applied to a display panel, the method including:
verifying continuous N frames of display data in a preset verification mode to obtain a plurality of verification codes corresponding to each frame of display data, wherein N is an integer greater than 1;
when the check codes corresponding to the continuous K frames of display data are equal, adjusting the display data corresponding to the check codes to obtain adjusted display data, wherein K is less than or equal to N and is an integer;
and determining driving parameters according to the adjusted display data so as to drive the display panel to display the adjusted display data.
In a possible implementation manner, the verifying the consecutive N frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data includes:
and verifying the whole frame of display data in the preset verification mode to obtain a plurality of verification codes corresponding to the frame of display data.
In a possible implementation manner, the verifying the consecutive N frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data includes:
partitioning each frame of display data to obtain a plurality of pieces of display data;
and verifying the plurality of pieces of display data of each frame of display data in a preset verification mode respectively to obtain a plurality of verification codes corresponding to each piece of display data.
In a possible implementation manner, when the checkcodes corresponding to the consecutive K frames of display data are equal, adjusting the display data corresponding to the checkcodes, to obtain adjusted display data, includes:
when the check codes of a plurality of pieces of display data corresponding to the continuous K frames of display data are equal, adjusting the block display data corresponding to the same check codes to obtain adjusted block display data,
wherein, the determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data includes:
and determining driving parameters according to the adjusted block display data so as to drive the display panel to display the adjusted block display data.
In a possible implementation manner, the adjusting the display data corresponding to the parity and the like to obtain the adjusted display data includes:
reducing the brightness of the display data corresponding to the check codes in the preset time period to obtain reduced display data;
determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data, including:
and determining a driving parameter according to the reduced display data so as to drive the display panel to display the adjusted display data.
In a possible implementation manner, the adjusting the display data corresponding to the parity and the like to obtain the adjusted display data includes:
after the preset time period, improving the brightness of the adjusted display data to obtain the display data with improved brightness;
determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data, including:
and determining a driving parameter according to the display data with the improved brightness so as to drive the display panel to display the adjusted display data.
In a possible implementation manner, the adjusting the display data corresponding to the parity and the like to obtain the adjusted display data includes:
and respectively adjusting different color channels of the display data at different time periods to obtain the adjusted display data.
In a possible embodiment, the adjusting different color channels of the display data at different time periods respectively to obtain adjusted display data includes:
in a first time period, reducing the brightness of a blue light channel of display data, and keeping the brightness of a red light channel and the brightness of a green light channel of the display data unchanged to obtain the display data corresponding to the first time period;
in a second time period, keeping the brightness of a blue light channel of display data unchanged, and reducing the brightness of a red light channel and a green light channel of the display data to obtain the display data corresponding to the second time period;
in a third time period, keeping the brightness of a blue light channel and the brightness of a green light channel of display data unchanged, and improving the brightness of a red light channel of the display data to obtain display data corresponding to the third time period;
in a fourth time period, keeping the brightness of a red light channel of display data unchanged, and improving the brightness of a blue light channel and a green light channel of the display data to obtain display data corresponding to the fourth time period;
wherein, the determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data includes:
determining a driving parameter according to the display data corresponding to each time period in each time period so as to drive the display panel to display the adjusted display data;
wherein the fourth time period is after the third time period, the third time period is after the second time period, and the second time period is after the first time period.
In a possible embodiment, the preset check mode includes any one or more combinations of a cyclic redundancy check mode, a parity check mode, a longitudinal redundancy check mode, and a checksum mode.
In one possible embodiment, the display panel includes any one of an organic light emitting diode display panel, a quantum dot light emitting diode display panel, a mini light emitting diode display panel, and a micro light emitting diode display panel.
According to another aspect of the present disclosure, there is provided a driving apparatus applied to a display panel, the apparatus including:
the verification module is used for verifying N continuous frames of display data in a preset verification mode to obtain a plurality of verification codes corresponding to each frame of display data, wherein N is an integer greater than 1;
the adjusting module is connected with the checking module and used for adjusting the display data corresponding to the same checking codes when the checking codes corresponding to the continuous K frames of display data are equal to each other to obtain the adjusted display data, wherein K is not more than N and is an integer;
and the driving module is connected with the adjusting module and used for determining driving parameters according to the adjusted display data so as to drive the display panel to display the adjusted display data.
In one possible embodiment, the verification module is configured to:
and verifying the whole frame of display data in the preset verification mode to obtain a plurality of verification codes corresponding to the frame of display data.
In one possible embodiment, the verification module is configured to:
partitioning each frame of display data to obtain a plurality of pieces of display data;
and verifying the plurality of pieces of display data of each frame of display data in a preset verification mode respectively to obtain a plurality of verification codes corresponding to each piece of display data.
In one possible embodiment, the adjusting module is configured to:
when the check codes of a plurality of pieces of display data corresponding to the continuous K frames of display data are equal, adjusting the block display data corresponding to the same check codes to obtain adjusted block display data,
wherein the drive module is configured to:
and determining driving parameters according to the adjusted block display data so as to drive the display panel to display the adjusted block display data.
In one possible embodiment, the adjusting module is configured to:
reducing the brightness of the display data corresponding to the check codes in the preset time period to obtain reduced display data;
the drive module is used for:
and determining a driving parameter according to the reduced display data so as to drive the display panel to display the adjusted display data.
In one possible embodiment, the adjusting module is configured to:
after the preset time period, improving the brightness of the adjusted display data to obtain the display data with improved brightness;
the drive module is used for:
and determining a driving parameter according to the display data with the improved brightness so as to drive the display panel to display the adjusted display data.
In one possible embodiment, the adjusting module is configured to:
and respectively adjusting different color channels of the display data at different time periods to obtain the adjusted display data.
In a possible embodiment, the adjusting different color channels of the display data at different time periods respectively to obtain adjusted display data includes:
in a first time period, reducing the brightness of a blue light channel of display data, and keeping the brightness of a red light channel and the brightness of a green light channel of the display data unchanged to obtain the display data corresponding to the first time period;
in a second time period, keeping the brightness of a blue light channel of display data unchanged, and reducing the brightness of a red light channel and a green light channel of the display data to obtain the display data corresponding to the second time period;
in a third time period, keeping the brightness of a blue light channel and the brightness of a green light channel of display data unchanged, and improving the brightness of a red light channel of the display data to obtain display data corresponding to the third time period;
in a fourth time period, keeping the brightness of a red light channel of display data unchanged, and improving the brightness of a blue light channel and a green light channel of the display data to obtain display data corresponding to the fourth time period;
wherein, the determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data includes:
determining a driving parameter according to the display data corresponding to each time period in each time period so as to drive the display panel to display the adjusted display data;
wherein the fourth time period is after the third time period, the third time period is after the second time period, and the second time period is after the first time period.
In a possible embodiment, the preset check mode includes any one or more combinations of a cyclic redundancy check mode, a parity check mode, a longitudinal redundancy check mode, and a checksum mode.
According to another aspect of the present disclosure, a display panel is provided, which includes the driving device.
According to another aspect of the present disclosure, an electronic device is provided, which includes the display panel.
Through the method, the embodiment of the disclosure can verify the continuous N frames of display data in a preset verification mode to obtain a plurality of verification codes corresponding to each frame of display data, when the verification codes corresponding to the continuous K frames of display data are equal, adjusting the display data corresponding to the same check code to obtain adjusted display data, determining drive parameters according to the adjusted display data, driving the display panel to display the adjusted display data, so as to prevent the display panel from aging and damage due to long-time luminescence, avoid screen burning, prolong the service life of the display panel, in addition, the embodiment of the disclosure utilizes the preset verification mode to verify the multi-frame display data, can accurately detect the displayed picture, whether the display picture of the display panel changes or not is determined, and the display is prevented from being influenced by error adjustment.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 shows a flow chart of a driving method according to an embodiment of the present disclosure.
Fig. 2 shows a block diagram of a driving apparatus according to an embodiment of the present disclosure.
Fig. 3 shows a block diagram of a driving apparatus according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Referring to fig. 1, fig. 1 shows a flowchart of a driving method according to an embodiment of the disclosure.
The method is applied to a display panel, and as shown in FIG. 1, the method comprises the following steps:
step S11, checking N continuous frames of display data in a preset checking mode to obtain a plurality of checking codes corresponding to each frame of display data, wherein N is an integer greater than 1;
step S12, when the check codes corresponding to the continuous K frames of display data are equal, adjusting the display data corresponding to the check codes to obtain adjusted display data, wherein K is not more than N and is an integer;
step S13, determining driving parameters according to the adjusted display data to drive the display panel to display the adjusted display data.
Through the method, the embodiment of the disclosure can verify the continuous N frames of display data in a preset verification mode to obtain a plurality of verification codes corresponding to each frame of display data, when the verification codes corresponding to the continuous K frames of display data are equal, adjusting the display data corresponding to the same check code to obtain adjusted display data, determining drive parameters according to the adjusted display data, driving the display panel to display the adjusted display data, so as to prevent the display panel from aging and damage due to long-time luminescence, avoid screen burning, prolong the service life of the display panel, in addition, the embodiment of the disclosure utilizes the preset verification mode to verify the multi-frame display data, can accurately detect the displayed picture, whether the display picture of the display panel changes or not is determined, and the display is prevented from being influenced by error adjustment.
According to the driving method provided by the embodiment of the disclosure, each step can be realized by a digital circuit, and the load of a processor can be reduced, so that the power consumption is reduced.
In one possible embodiment, the display panel includes any one or more of an LED (Light Emitting Diode) display panel, a MiniLED (Mini Light Emitting Diode) display panel, a Micro LED (Micro Light Emitting Diode) display panel, an OLED (Organic Light-Emitting Diode) display panel, and a quantum dot Light Emitting Diode display panel.
In an example, assuming that the display panel is an OLED display panel, since the OLED display panel adopts a self-luminous technology, the OLED display panel has great advantages in power consumption, color saturation and the like, and compared with a conventional liquid crystal display, the OLED display can be made thinner and lighter, but because of its self-luminous characteristic, when a static picture is displayed for a long time, since the diode emits light for a long time, the OLED display panel is more likely to be aged and damaged, that is, a screen burn-in phenomenon is often said.
The driving apparatus may be applied to an electronic device, which may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like, and is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self), a wireless terminal in remote operation (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), a wireless terminal in car networking, a sound box, a smart wearable device, a digital camera, mp3, mp4, a broadband router, an electronic book, a switch, a cat, an ndp, a PS, a digital 3, a box, etc., and may also include a digital computer, such as a satellite disk receiver, A BIOS of a printer, a BIOS of a graphics card, a mouse, a display, an optical drive, a hard disk, a keyboard, a GPS terminal, a precision electronic instrument (such as a nuclear magnetic resonance instrument), and the like.
In a possible embodiment, the preset Check mode may include any one or more combinations of Cyclic Redundancy Check (CRC), parity Check, Longitudinal Redundancy Check (LRC), Checksum mode (Checksum) and other Check modes.
The embodiment of the present disclosure does not limit the type of the verification method, and does not limit the implementation of the verification method, and those skilled in the art can implement the verification method by referring to the related art.
A possible implementation of the steps of the driving method of the embodiment of the present disclosure is exemplarily described below.
In a possible implementation manner, the step S11 of verifying the consecutive N frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data may include:
and verifying the whole frame of display data in the preset verification mode to obtain a plurality of verification codes corresponding to the frame of display data.
In one example, the embodiment of the present disclosure may verify the whole of one frame of display data to adjust the display brightness of the whole frame of picture displayed by the display panel.
In an example, when the compared dimension is the whole frame of display data, the disclosed example may adjust the whole frame of display data with the same check code when it is determined that consecutive K frames of display data correspond to the same check code, so as to obtain the adjusted display data.
In a possible implementation manner, the step S11 verifies the consecutive N frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data, and may further include:
partitioning each frame of display data to obtain a plurality of pieces of display data;
and verifying the plurality of pieces of display data of each frame of display data in a preset verification mode respectively to obtain a plurality of verification codes corresponding to each piece of display data.
In one example, the embodiment of the present disclosure may further perform verification on the display data of each block of one frame of display data, respectively, to implement adaptive adjustment of display data adjustment.
By blocking each frame of display data, a plurality of blocks of display data corresponding to the frame of display data can be obtained, and the plurality of blocks of display data are respectively verified to obtain the verification code of the display data of each block.
In one example, after the block dividing mode is set in the digital circuit, the dividing mode of each frame of display data may be the same in the processing process, so that the correspondence of each block of display data of each frame can be realized, the processing speed is increased, and the processing accuracy is improved.
It should be noted that, in the embodiment of the present disclosure, a specific way of performing blocking is not limited, and the number of blocks is not limited, which can be determined by a person skilled in the art as needed.
In a possible implementation manner, in step S12, when the checkcodes corresponding to the consecutive K frames of display data are equal, adjusting the display data corresponding to the checkcodes, to obtain adjusted display data, includes:
when the check codes of a plurality of pieces of display data corresponding to the continuous K frames of display data are equal, adjusting the corresponding block display data with the same check codes to obtain the adjusted block display data.
The specific size of K is not limited in the embodiment of the present disclosure, and a person skilled in the art can set the size of the threshold K according to actual needs.
In an example, when the dimension of comparison is block display data of each frame, the disclosed example may compare check codes of the block display data of each block of consecutive K frames of display data, and adjust the block display data of each block with the same check code to obtain the adjusted block display data when it is determined that the check codes of the display data of the blocks corresponding to the consecutive K frames of display data in each frame of display data are equal.
In a possible implementation manner, the step S13 determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data may include:
and determining driving parameters according to the adjusted block display data so as to drive the display panel to display the adjusted block display data.
In one example, the drive parameters may include drive voltage, drive current, and the like.
The embodiment of the disclosure can adjust the block display data of the frame with the same detected check code, and after adjustment, determine the driving parameter according to the adjusted block display data to realize the brightness adjustment of the pixel unit corresponding to the block display data, so that the aging speed of the pixel unit corresponding to the block display data can be reduced, and screen burn is avoided.
It should be noted that, calculation, judgment, adjustment of the check code of each block of display data of the display data and driving display of the pixel unit corresponding to the display panel may be performed independently, for example, if after being partitioned, the first block of display data corresponds to the first pixel unit, and the second block of display data corresponds to the second pixel unit, the embodiments of the present disclosure may perform check processing on each frame of display data of the first block of display data and the second block of display data synchronously, and if it is judged that the check code of the first block of display data of the K frames of display data is equal, adjust the first block of display data, and adjust the display brightness of the first pixel unit; meanwhile, if the check codes of the second block of display data of the K frames of display data are judged to be equal, the second block of display data is synchronously adjusted, and the display brightness of the second pixel unit is adjusted.
The following describes an exemplary manner of adjusting the display data.
In a possible implementation manner, the step S12 of adjusting the display data corresponding to the parity codes and obtaining the adjusted display data may include:
and in a preset time period, reducing the brightness of the display data corresponding to the check codes in an equal way to obtain the reduced display data.
In a possible implementation manner, the step S13 determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data may include:
and determining a driving parameter according to the reduced display data so as to drive the display panel to display the adjusted display data.
In one example, the display panel may first reduce the brightness of display data (which may be an entire frame of display data, or one or more blocks of display data in one frame of display data) that needs to be adjusted to dim the brightness of the display panel or pixel units corresponding to the block of display data in the display panel.
In a possible implementation manner, step S12 is to adjust the display data corresponding to the parity code, to obtain the adjusted display data, and may further include:
and after the preset time period, improving the brightness of the adjusted display data to obtain the display data with improved brightness.
In a possible implementation manner, the step S13 determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data includes:
and determining a driving parameter according to the display data with the improved brightness so as to drive the display panel to display the adjusted display data.
According to the embodiment of the disclosure, after the display panel or the corresponding pixel unit is dimmed for the preset time period, the display panel or the corresponding pixel unit can be dimmed, for example, the brightness of the display panel or the corresponding pixel unit can be restored to the preset brightness (for example, the brightness before dimming), so that the dimming processing is performed for the preset time period, and the display brightness is dimmed after the preset time period.
The specific duration of the preset time period is not limited in the embodiment of the disclosure, and can be set by a person skilled in the art as required.
The embodiment of the present disclosure does not limit the specific brightness value of the display data reduction, and those skilled in the art can set the brightness value according to needs or actual situations.
The specific brightness value for brightening the display data with reduced brightness in the embodiment of the disclosure is not limited, and those skilled in the art can set the brightness value according to needs or actual situations.
In a possible implementation manner, step S12 is to adjust the display data corresponding to the parity code, to obtain the adjusted display data, and may further include:
and respectively adjusting different color channels of the display data at different time periods to obtain the adjusted display data.
In a possible implementation manner, the separately adjusting different color channels of the display data at different time periods to obtain adjusted display data may include:
in a first time period, reducing the brightness of a blue light channel of display data, and keeping the brightness of a red light channel and the brightness of a green light channel of the display data unchanged to obtain the display data corresponding to the first time period;
in a second time period, keeping the brightness of a blue light channel of display data unchanged, and reducing the brightness of a red light channel and a green light channel of the display data to obtain the display data corresponding to the second time period;
in a third time period, keeping the brightness of a blue light channel and the brightness of a green light channel of display data unchanged, and improving the brightness of a red light channel of the display data to obtain display data corresponding to the third time period;
in a fourth time period, keeping the brightness of a red light channel of display data unchanged, and improving the brightness of a blue light channel and a green light channel of the display data to obtain display data corresponding to the fourth time period;
wherein, the determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data includes:
determining a driving parameter according to the display data corresponding to each time period in each time period so as to drive the display panel to display the adjusted display data;
wherein the fourth time period is after the third time period, the third time period is after the second time period, and the second time period is after the first time period.
Depending on the human eye characteristics, the human eye is most sensitive to green and less sensitive to red and blue. Meanwhile, in terms of lifetime, the closer the color is to a deep blue organic light emitting material, the shorter the lifetime is, and therefore, in the display panel, the more the blue transistor is used, the shorter the lifetime is, and the next to the green transistor, the longest the lifetime is for the red transistor. Based on this, the dimming program of the embodiment of the disclosure may reduce the brightness of the blue light channel first in the first time period, and keep the brightness of the red light channel and the green light channel of the display data unchanged (i.e., reduce the brightness of the blue pixel lamp in the pixel unit corresponding to the display panel, and keep the brightness of the red pixel lamp and the green pixel lamp unchanged); keeping the brightness of the blue light channel of the display data unchanged in the second time period, and reducing the brightness of the red light channel and the green light channel of the display data (namely keeping the brightness of the blue pixel lamp in the pixel unit corresponding to the display panel as the brightness in the first time period, and reducing the brightness of the red pixel lamp and the green pixel lamp); keeping the brightness of the blue light channel and the green light channel of the display data unchanged in a third time period, and improving the brightness of the red light channel of the display data (for example, keeping the brightness of the blue pixel lamp and the green pixel lamp in the pixel unit corresponding to the display panel consistent with the brightness in the second time period, and improving the brightness of the red pixel lamp, for example, restoring to the brightness before adjustment); and in the fourth time period, the brightness of the red light channel of the display data is kept unchanged, and the brightness of the blue light channel and the brightness of the green light channel of the display data are improved (for example, the brightness of the red pixel lamp in the pixel unit corresponding to the display panel is kept consistent with the low brightness in the third time period, and the brightness of the blue pixel lamp and the brightness of the green pixel lamp are improved, for example, the brightness of the blue pixel lamp and the brightness of the red pixel lamp are restored to the brightness before adjustment).
The specific duration of each time period is not limited in the embodiments of the present disclosure, and can be set by a person skilled in the art as needed.
The embodiment of the present disclosure does not limit the specific size of the adjustment amount of each color channel in each time period, and those skilled in the art can set the adjustment amount according to actual needs.
In other embodiments, other adjustment orders may be selected according to specific types of display panels, and the implementation of the present disclosure is not limited thereto.
It should be noted that, in the embodiments of the present disclosure, a specific implementation manner of adjusting the brightness of the pixel lamp of the pixel unit is not limited, and the current may be adjusted, the voltage may be adjusted, or other implementation manners, and thus, the embodiments of the present disclosure are not limited.
Referring to fig. 2, fig. 2 is a block diagram of a driving apparatus according to an embodiment of the disclosure.
The driving apparatus may be applied to a display panel, as shown in fig. 2, the apparatus including:
the verification module 10 is configured to verify N consecutive frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data, where N is an integer greater than 1;
the adjusting module 20 is connected to the verifying module 10, and configured to adjust the display data corresponding to the same verification code when the verification codes corresponding to the consecutive K frames of display data are equal to each other, so as to obtain adjusted display data, where K is not greater than N and is an integer;
and the driving module 30 is connected to the adjusting module 20, and configured to determine a driving parameter according to the adjusted display data, so as to drive the display panel to display the adjusted display data.
Through the device, the embodiment of the disclosure can verify the continuous N frames of display data in a preset verification mode to obtain a plurality of verification codes corresponding to each frame of display data, when the verification codes corresponding to the continuous K frames of display data are equal, adjusting the display data corresponding to the same check code to obtain adjusted display data, determining drive parameters according to the adjusted display data, driving the display panel to display the adjusted display data, so as to prevent the display panel from aging and damage due to long-time luminescence, avoid screen burning, prolong the service life of the display panel, in addition, the embodiment of the disclosure utilizes the preset verification mode to verify the multi-frame display data, can accurately detect the displayed picture, whether the display picture of the display panel changes or not is determined, and the display is prevented from being influenced by error adjustment.
It should be noted that, each module in the driving device according to the embodiment of the present disclosure may be implemented by a digital circuit, and the efficiency of verifying and adjusting display data and driving the display panel may be improved and power consumption may be reduced by implementing each module by a digital circuit.
A possible implementation of the drive means is exemplarily described below.
In a possible implementation manner, the verifying the consecutive N frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data may include:
and verifying the whole frame of display data in the preset verification mode to obtain a plurality of verification codes corresponding to the frame of display data.
Referring to fig. 3, fig. 3 is a block diagram of a driving apparatus according to an embodiment of the disclosure.
In one example, as shown in fig. 3, the verification module 10 may include a plurality of verification units 110, and of course, may also include only one verification unit 110.
In an example, the verification unit 110 may perform verification on the entire frame of display data in the preset verification manner to obtain a plurality of verification codes corresponding to the frame of display data.
In a possible implementation, the verification module 10 may be configured to:
partitioning each frame of display data to obtain a plurality of pieces of display data;
and verifying the plurality of pieces of display data of each frame of display data in a preset verification mode respectively to obtain a plurality of verification codes corresponding to each piece of display data.
In an example, each verification unit 110 may respectively perform blocking on each frame of display data to obtain a plurality of pieces of display data, and perform verification on the plurality of pieces of display data of each frame of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each piece of display data.
In one example, as shown in fig. 3, the adjusting module 20 may include at least one of a counting unit 210, a determining unit 220, and an adjusting unit 230.
In one possible embodiment, the adjusting module 20 may be configured to:
when the check codes of a plurality of pieces of display data corresponding to the continuous K frames of display data are equal, adjusting the corresponding block display data with the same check codes to obtain the adjusted block display data.
In one example, each statistic unit 210 may be configured to compare and count the check codes of the display data of the corresponding block of the display data, and output a statistic signal to the determining unit 220.
In one example, as shown in fig. 3, the determining unit 220 may respectively determine whether the corresponding block display data needs to be adjusted according to the statistical result of each statistical unit 210.
In an example, the determining unit 220 may determine whether the display data needs to be adjusted according to the statistical signal output by the statistical unit 210, for example, when it is determined that the check codes of the multiple pieces of display data corresponding to the consecutive K frames of display data are equal according to the consecutive K statistical signals, the determining unit 220 may determine that the corresponding block of display data needs to be adjusted, in this case, the determining unit 220 may output an enable signal to the adjusting unit 230, and may send the address information of the corresponding block on the display panel to the adjusting unit 230, and when the adjusting unit 230 receives the enable signal, the corresponding block of display data may be adjusted to obtain the adjusted display data, and the adjusted display data and the corresponding address information are sent to the driving module 30.
In one example, the statistical unit 210 may include logic circuits such as comparators, counters, and the like.
In one example, the determination unit 220 may include an or gate, an and gate, or other logic circuit.
In one example, the adjusting unit 230 may include a logic circuit such as an adder, a subtractor, and the like.
In one possible embodiment, the driving module 30 may be configured to:
and determining driving parameters according to the adjusted block display data so as to drive the display panel to display the adjusted block display data.
In one example, the driving module 30 may determine the driving parameters when receiving the adjusted block display data (which may also be the display data of the whole frame), and drive the display panel to display the adjusted block display data (which may also be the display data of the whole frame).
The embodiment of the present disclosure does not limit the specific implementation manner of the driving module 30, and a person skilled in the art may select related technology implementation as needed.
In one possible embodiment, the adjusting module 20 may be configured to:
reducing the brightness of the display data corresponding to the check codes in the preset time period to obtain reduced display data;
the drive module 30 may be configured to:
and determining a driving parameter according to the reduced display data so as to drive the display panel to display the adjusted display data.
In one possible embodiment, the adjusting module 20 may be configured to:
after the preset time period, improving the brightness of the adjusted display data to obtain the display data with improved brightness;
the drive module 30 may be configured to:
and determining a driving parameter according to the display data with the improved brightness so as to drive the display panel to display the adjusted display data.
In one possible embodiment, the adjusting module 20 may be configured to:
and respectively adjusting different color channels of the display data at different time periods to obtain the adjusted display data.
In one possible embodiment, the adjusting module 20 may be configured to:
in a first time period, reducing the brightness of a blue light channel of display data, and keeping the brightness of a red light channel and the brightness of a green light channel of the display data unchanged to obtain the display data corresponding to the first time period;
in a second time period, keeping the brightness of a blue light channel of display data unchanged, and reducing the brightness of a red light channel and a green light channel of the display data to obtain the display data corresponding to the second time period;
in a third time period, keeping the brightness of a blue light channel and the brightness of a green light channel of display data unchanged, and improving the brightness of a red light channel of the display data to obtain display data corresponding to the third time period;
in a fourth time period, keeping the brightness of a red light channel of display data unchanged, and improving the brightness of a blue light channel and a green light channel of the display data to obtain display data corresponding to the fourth time period;
wherein the driving module 30 may be configured to:
determining a driving parameter according to the display data corresponding to each time period in each time period so as to drive the display panel to display the adjusted display data;
wherein the fourth time period is after the third time period, the third time period is after the second time period, and the second time period is after the first time period.
In a possible embodiment, the preset check mode includes any one or more combinations of a cyclic redundancy check mode, a parity check mode, a longitudinal redundancy check mode, and a checksum mode.
It should be noted that the driving apparatus is an apparatus item corresponding to the aforementioned driving method, and for specific introduction, reference is made to the description of the method before, and details are not repeated here.
In one example, the driving device may be disposed at the last stage of the digital circuit of the display panel driving chip, and is directed to data to be sent to the analog-end driving dot panel after being processed by the digital circuit. In the device, the data can be monitored, and when the data is not changed for a long time, the display data can be actively modified, so that the screen burning is avoided.
Although possible implementations of the respective modules of the driving apparatus are described above, the disclosure is not limited thereto, and in other embodiments, the respective modules may be implemented by other digital circuits.
The embodiment of the disclosure can detect and check the display of the display panel in blocks or in a whole manner, determine whether a static picture appears wholly or locally, adjust the display data with the static picture, adjust the brightness of the corresponding pixel unit, and has the characteristic of high adaptability.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (15)
1. A driving method applied to a display panel, the method comprising:
verifying continuous N frames of display data in a preset verification mode to obtain a plurality of verification codes corresponding to each frame of display data, wherein N is an integer greater than 1;
when the check codes corresponding to the continuous K frames of display data are equal, adjusting the display data corresponding to the check codes to obtain adjusted display data, wherein K is less than or equal to N and is an integer;
and determining driving parameters according to the adjusted display data so as to drive the display panel to display the adjusted display data.
2. The method according to claim 1, wherein the verifying the consecutive N frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data comprises:
and verifying the whole frame of display data in the preset verification mode to obtain a plurality of verification codes corresponding to the frame of display data.
3. The method according to claim 1, wherein the verifying the consecutive N frames of display data in a preset verification manner to obtain a plurality of verification codes corresponding to each frame of display data comprises:
partitioning each frame of display data to obtain a plurality of pieces of display data;
and verifying the plurality of pieces of display data of each frame of display data in a preset verification mode respectively to obtain a plurality of verification codes corresponding to each piece of display data.
4. The method according to claim 3, wherein when the checkcodes corresponding to the consecutive K frames of display data are equal, adjusting the display data corresponding to the checkcodes to obtain the adjusted display data, comprises:
when the check codes of a plurality of pieces of display data corresponding to the continuous K frames of display data are equal, adjusting the block display data corresponding to the same check codes to obtain adjusted block display data,
wherein, the determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data includes:
and determining driving parameters according to the adjusted block display data so as to drive the display panel to display the adjusted block display data.
5. The method of claim 1, wherein the adjusting the display data corresponding to the parity code to obtain the adjusted display data comprises:
reducing the brightness of the display data corresponding to the check codes in the preset time period to obtain reduced display data;
determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data, including:
and determining a driving parameter according to the reduced display data so as to drive the display panel to display the adjusted display data.
6. The method of claim 5, wherein the adjusting the display data corresponding to the parity code to obtain the adjusted display data comprises:
after the preset time period, improving the brightness of the adjusted display data to obtain the display data with improved brightness;
determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data, including:
and determining a driving parameter according to the display data with the improved brightness so as to drive the display panel to display the adjusted display data.
7. The method of claim 1, wherein the adjusting the display data corresponding to the parity code to obtain the adjusted display data comprises:
and respectively adjusting different color channels of the display data at different time periods to obtain the adjusted display data.
8. The method of claim 7, wherein the adjusting the different color channels of the display data at different time periods respectively to obtain the adjusted display data comprises:
in a first time period, reducing the brightness of a blue light channel of display data, and keeping the brightness of a red light channel and the brightness of a green light channel of the display data unchanged to obtain the display data corresponding to the first time period;
in a second time period, keeping the brightness of a blue light channel of display data unchanged, and reducing the brightness of a red light channel and a green light channel of the display data to obtain the display data corresponding to the second time period;
in a third time period, keeping the brightness of a blue light channel and the brightness of a green light channel of display data unchanged, and improving the brightness of a red light channel of the display data to obtain display data corresponding to the third time period;
in a fourth time period, keeping the brightness of a red light channel of display data unchanged, and improving the brightness of a blue light channel and a green light channel of the display data to obtain display data corresponding to the fourth time period;
wherein, the determining a driving parameter according to the adjusted display data to drive the display panel to display the adjusted display data includes:
determining a driving parameter according to the display data corresponding to each time period in each time period so as to drive the display panel to display the adjusted display data;
wherein the fourth time period is after the third time period, the third time period is after the second time period, and the second time period is after the first time period.
9. The method according to claim 1, wherein the predetermined check mode comprises any one or more combinations of a cyclic redundancy check mode, a parity check mode, a longitudinal redundancy check mode and a checksum mode.
10. The method of claim 1, wherein the display panel comprises any one of an organic light emitting diode display panel, a quantum dot light emitting diode display panel, a mini light emitting diode display panel, and a micro light emitting diode display panel.
11. A driving apparatus, for use in a display panel, the apparatus comprising:
the verification module is used for verifying N continuous frames of display data in a preset verification mode to obtain a plurality of verification codes corresponding to each frame of display data, wherein N is an integer greater than 1;
the adjusting module is connected with the checking module and used for adjusting the display data corresponding to the same checking codes when the checking codes corresponding to the continuous K frames of display data are equal to each other to obtain the adjusted display data, wherein K is not more than N and is an integer;
and the driving module is connected with the adjusting module and used for determining driving parameters according to the adjusted display data so as to drive the display panel to display the adjusted display data.
12. A driver chip, characterized in that the driver chip comprises the driving device according to claim 11.
13. A display panel characterized in that the display panel comprises the driver chip according to claim 12.
14. An electronic device characterized in that it comprises a display panel as claimed in claim 13.
15. The electronic device of claim 14, wherein the electronic device comprises a display, a smartphone, or a portable device.
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