CN107945735B - Pixel calling method and device and related medium product - Google Patents
Pixel calling method and device and related medium product Download PDFInfo
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- CN107945735B CN107945735B CN201711375672.0A CN201711375672A CN107945735B CN 107945735 B CN107945735 B CN 107945735B CN 201711375672 A CN201711375672 A CN 201711375672A CN 107945735 B CN107945735 B CN 107945735B
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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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- 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
- G09G3/2003—Display of colours
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- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
- G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables
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Abstract
The embodiment of the invention discloses a pixel calling method and a pixel calling device, wherein the method comprises the following steps: counting the screen-on duration of a display screen of a terminal, and detecting whether the counted screen-on duration exceeds a preset time threshold; if the time threshold value is exceeded, determining a target standby pixel point associated with the time threshold value from at least one standby pixel point; and replacing a target sub-pixel point in the screen pixel by the target standby pixel point, and calling the target standby pixel point to emit light. By implementing the embodiment of the invention, the brightness and the chroma of the OLED can be compensated through the preset standby pixel point.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a pixel calling method and apparatus, and a related medium product.
Background
Currently, Organic Light-Emitting diodes (OLEDs) are used as a new application technology for flat panel displays, and have the advantages of self-luminescence, no need of backlight, power saving, large viewing angle, and the like, and are widely used in terminals such as mobile phones, digital video cameras, tablet computers, televisions, and the like.
The OLED luminescent material consists of three primary colors, including red, green and blue luminescent materials. Since the OLED is self-luminous, the light-emitting process is a process in which the OLED material is continuously consumed. Therefore, the OLED material may age over time, such as its luminosity decreases gradually, and color difference occurs, and the decay rates of the red, green and blue light-emitting materials are different, which results in uneven brightness and chromaticity of the OLED display screen.
Disclosure of Invention
The embodiment of the invention provides a pixel calling method and a pixel calling device, which can compensate the brightness and the chrominance of an OLED through a preset standby pixel point.
The embodiment of the invention discloses a pixel calling method, which is applied to a terminal, wherein a display screen of the terminal consists of at least one screen pixel, each screen pixel comprises a red sub-pixel point, a green sub-pixel point and a blue sub-pixel point, the display screen also comprises at least one standby pixel point, and the method comprises the following steps:
counting the screen-on duration of the display screen, and detecting whether the counted screen-on duration exceeds a preset time threshold;
if the time threshold value is exceeded, determining a target standby pixel point associated with the time threshold value from the at least one standby pixel point;
and replacing a target sub-pixel point in the screen pixel by the target standby pixel point, and calling the target standby pixel point to emit light.
Optionally, before the detecting whether the counted screen-on duration exceeds a preset time threshold, the method further includes:
respectively acquiring the attenuation speed of each sub-pixel point in the screen pixel;
and setting a time threshold for each sub-pixel point according to the attenuation speed of the sub-pixel point, and associating the time threshold set for the sub-pixel point with a standby pixel point corresponding to the sub-pixel point.
Optionally, each sub-pixel point in the screen pixel corresponds to at least one standby pixel point; the counting of the screen-on duration of the display screen and the detection of whether the counted screen-on duration exceeds a preset time threshold include:
respectively counting the luminous time of each sub-pixel point in the screen pixel, and judging whether the luminous time of each sub-pixel point exceeds a preset time threshold corresponding to the sub-pixel point;
the determining a target backup pixel point associated with the time threshold from the at least one backup pixel point comprises:
and if the time threshold corresponding to the sub-pixel point is exceeded, determining a standby pixel point corresponding to the sub-pixel point, and taking the determined standby pixel point as a target standby pixel point.
Optionally, counting the light emitting duration of the sub-pixel in the screen pixel includes:
acquiring states of sub-pixel points in the screen pixels, wherein the states comprise a light-emitting state and a non-light-emitting state;
when the sub pixel point is in the non-luminous state, stopping timing;
and when the state of the sub-pixel point is a luminous state, counting the luminous time of the sub-pixel point.
Optionally, the target sub-pixel is a blue sub-pixel in the screen pixel, and the target standby pixel is a pre-backed blue sub-pixel.
Correspondingly, the embodiment of the invention also discloses a pixel calling device which is arranged in a terminal, a display screen of the terminal is composed of at least one screen pixel, each screen pixel comprises a red sub-pixel point, a green sub-pixel point and a blue sub-pixel point, the display screen further comprises at least one standby pixel point, and the device comprises:
the time detection module is used for counting the screen-on duration of the display screen and detecting whether the counted screen-on duration exceeds a preset time threshold value;
the backup determining module is used for determining a target standby pixel point associated with the time threshold value from the at least one standby pixel point when the time detecting module detects that the screen-on duration exceeds the time threshold value;
and the replacing module is used for replacing the target sub-pixel points in the screen pixels by the target standby pixel points determined by the backup determining module and calling the target standby pixel points to emit light.
Optionally, the apparatus further comprises:
the attenuation detection module is used for respectively acquiring the attenuation speed of each sub-pixel point in the screen pixel;
and the threshold setting module is used for setting a time threshold for each sub-pixel point according to the attenuation speed of the sub-pixel point and associating the time threshold set for the sub-pixel point with the standby pixel point corresponding to the sub-pixel point.
Optionally, each sub-pixel point in the screen pixel corresponds to at least one standby pixel point; the time detection module is specifically configured to:
respectively counting the luminous time of each sub-pixel point in the screen pixel, and judging whether the luminous time of each sub-pixel point exceeds a preset time threshold corresponding to the sub-pixel point;
the backup determination module is specifically configured to:
and if the time threshold corresponding to the sub-pixel point is exceeded, determining a standby pixel point corresponding to the sub-pixel point, and taking the determined standby pixel point as a target standby pixel point.
Optionally, the specific manner of counting the light emitting duration of the sub-pixel in the screen pixel by the time detection module is as follows:
acquiring states of sub-pixel points in the screen pixels, wherein the states comprise a light-emitting state and a non-light-emitting state;
when the sub pixel point is in the non-luminous state, stopping timing;
and when the state of the sub-pixel point is a luminous state, counting the luminous time of the sub-pixel point.
Optionally, the target sub-pixel is a blue sub-pixel in the screen pixel, and the target standby pixel is a pre-backed blue sub-pixel.
The embodiment of the invention has the following beneficial effects:
according to the embodiment of the invention, whether the screen-on duration of the terminal display screen exceeds the preset time threshold can be detected, and the target standby pixel point associated with the time threshold is determined from at least one preset standby pixel point when the time threshold is exceeded, so that a certain target sub-pixel point in the screen pixel is replaced by the target standby pixel point, and the target standby pixel point is called to emit light, and therefore, after the OLED is used for a period of time, the brightness of the OLED is compensated through the preset standby pixel point, the loss of the OLED is reduced, and the display uniformity of the display screen is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a pixel calling method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating another pixel calling method according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a pixel calling device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another pixel calling device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and "third," etc. in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
It should be understood that the technical solution of the embodiment of the present invention may be specifically applied to a Terminal (Terminal) configured with an OLED display screen, such as a Mobile phone (e.g., an Android Mobile phone, an iOS Mobile phone, etc.), a television, a tablet computer, a Mobile Internet Device (MID), a Personal Digital Assistant (PDA), etc. The terminal may also be referred to as a User Equipment (User Equipment, abbreviated as "UE"), a Mobile terminal, a wireless terminal or a Mobile Station (Mobile Station, abbreviated as "MS"), and the like.
The embodiment of the invention discloses a pixel calling method, a pixel calling device and a pixel calling terminal, which can compensate the brightness and the chroma of an OLED through a preset standby pixel point. The details are described below.
Referring to fig. 1, fig. 1 is a schematic flowchart illustrating a pixel calling method according to an embodiment of the present invention. Specifically, the method of the embodiment of the present invention may be specifically applied to the terminal, where a display screen of the terminal is composed of at least one screen pixel, each screen pixel includes a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B), and further, the display screen further includes at least one spare pixel. As shown in fig. 1, the pixel calling method according to the embodiment of the present invention may include the following steps:
101. counting the screen-on duration of a display screen of the terminal, and detecting whether the counted screen-on duration exceeds a preset time threshold.
It should be understood that each sub-pixel in the screen pixel may be an OLED, the OLED corresponding to the red sub-pixel (R) is used for displaying red (red light), the OLED corresponding to the green sub-pixel (G) is used for displaying green (green light), and the OLED corresponding to the blue sub-pixel (B) is used for displaying blue (blue light).
In a specific embodiment, in addition to the screen pixel (or simply referred to as "pixel") including RGB, a plurality of spare pixels (spare OLEDs) may be preset on a terminal display screen, where the spare pixels may include any one or more sub-pixels for displaying red, green, and blue, specifically, a spare pixel may be preset for each sub-pixel of the screen pixel, or a spare pixel may be preset for only one sub-pixel of the screen pixel, for example, a spare pixel is preset for only a blue sub-pixel that is aged (attenuated) quickly. Different from each sub-pixel point in the screen pixel, the standby pixel point is independently controlled, so that pixel switching can be performed when needed, and a certain sub-pixel point in the screen pixel is replaced by the corresponding standby pixel point to emit light.
102. And if the time threshold is exceeded, determining a target standby pixel point associated with the time threshold from at least one standby pixel point.
In a specific embodiment, whether the standby pixels are started or not can be selected according to the aging degree of the pixels of the display screen, generally speaking, the larger the screen-on duration is, the larger the aging degree of the OLED is, so that a time threshold can be preset, the screen-on duration of the display screen of the terminal is counted, and the screen-on duration is compared with the preset time threshold to determine the standby pixels needing to be started, namely the target standby pixels.
103. And replacing a target sub-pixel point in the screen pixel by the target standby pixel point, and calling the target standby pixel point to emit light.
In a specific embodiment, after the target standby pixel point to be started is determined, a certain sub-pixel point in the screen pixel can be used as the target sub-pixel point, and the target sub-pixel point is replaced by the target standby pixel point, so that light is emitted through the target standby pixel point, and the replaced target sub-pixel point does not emit light any more.
Optionally, since the attenuation of the blue luminescent material in the OLED, that is, the blue sub-pixel point, is generally fastest, and is often several times that of the red and green luminescent materials, the target sub-pixel point may be set as the blue sub-pixel point in the screen pixel, and the target standby pixel point is a pre-backed blue sub-pixel point.
For example, a corresponding spare pixel point can be preset for a blue sub-pixel point in each screen pixel in advance, and the spare pixel point is a spare blue sub-pixel point. After the pixels are used for a period of time, if the screen-on duration exceeds a preset time threshold, it can be shown that the OLED, especially the OLED corresponding to the blue sub-pixel point is aged, so that the blue sub-pixel point can be replaced by a spare pixel point (namely a target spare pixel point corresponding to the blue sub-pixel point, and the target spare pixel point can be associated with the preset time threshold) to emit light, thereby compensating the aging of the OLED and improving the display uniformity of the display screen.
In the embodiment of the invention, whether the screen-on duration of the display screen of the terminal exceeds the preset time threshold can be detected, and the target standby pixel point associated with the time threshold is determined from at least one preset standby pixel point when the time threshold is exceeded, so that a certain target sub-pixel point in the screen pixel is replaced by the target standby pixel point, and the target standby pixel point is called to emit light, thereby realizing that the brightness of the OLED is compensated by the preset standby pixel point after the OLED is used for a period of time, reducing the loss of the OLED, and improving the display uniformity of the display screen.
Further, referring to fig. 2, fig. 2 is a schematic flowchart of another pixel calling method according to an embodiment of the present invention. Specifically, the method of the embodiment of the present invention may be applied to the terminal, where a display screen of the terminal is composed of at least one screen pixel, each screen pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and further, the display screen further includes at least one standby pixel. As shown in fig. 2, the pixel calling method according to the embodiment of the present invention may include the following steps:
201. and respectively obtaining the attenuation speed of each sub-pixel point in the screen pixel.
202. And setting a time threshold for each sub-pixel point according to the attenuation speed of the sub-pixel point, and associating the time threshold set for the sub-pixel point with a standby pixel point corresponding to the sub-pixel point.
In a specific embodiment, at least one standby pixel point can be preset for each sub-pixel point in the screen pixel respectively, and a time threshold value for starting the corresponding standby pixel point is set for the sub-pixel point according to the attenuation speed of each sub-pixel point, so that the time threshold value set for the sub-pixel point and the standby pixel point for the sub-pixel point threshold value are stored in an associated manner, and the corresponding standby pixel point can be called in time to emit light when the time threshold value is reached.
The faster the attenuation speed of the sub-pixel point is, the smaller the time threshold value set for the sub-pixel point is, so that the sub-pixel point can be replaced in time, and the OLED loss is reduced. On the contrary, the slower the attenuation speed of the sub-pixel is, the larger the time threshold set for the sub-pixel is.
203. And respectively counting the luminous time of each sub-pixel point in the screen pixel.
204. And judging whether the light-emitting duration of each sub-pixel point exceeds a preset time threshold corresponding to the sub-pixel point.
In a specific embodiment, the aging degree of the sub-pixel points in the screen pixel can be determined by counting the screen-on duration of the display screen of the terminal, so as to determine the standby pixel point which needs to be started, for example, it can be determined whether the corresponding standby pixel point needs to be started by counting the light-emitting duration of each sub-pixel point, so as to improve the accuracy of the starting time of the standby pixel point. Specifically, if the light emitting duration of a certain sub-pixel exceeds the corresponding time threshold, step 205 may be executed; otherwise, the light emitting duration of the sub-pixel point can be continuously counted.
205. And determining a standby pixel point corresponding to the sub-pixel point, and taking the determined standby pixel point as a target standby pixel point.
Optionally, taking an example of determining whether the corresponding standby pixel needs to be started by counting the light emitting duration of each sub-pixel, the specific way of counting the light emitting durations of the sub-pixels in the screen pixel may be as follows: acquiring states of sub-pixel points in the screen pixels, wherein the states comprise a light-emitting state and a non-light-emitting state; when the sub pixel point is in the non-luminous state, stopping timing; and when the state of the sub-pixel point is a luminous state, counting the luminous time of the sub-pixel point.
Specifically, because the sub-pixels in the screen pixel are divided into a light-emitting state and a non-light-emitting state, whether the corresponding standby pixel needs to be started or not can be determined by detecting the light-emitting duration of the sub-pixels. The lighting time is the accumulated time when the sub-pixel point is detected to be in the lighting state (the accumulated time is not counted when the sub-pixel point is in the non-lighting state), so that the accuracy of the starting time of the standby pixel point is improved.
206. And replacing a target sub-pixel point in the screen pixel by the target standby pixel point, and calling the target standby pixel point to emit light.
In the specific embodiment, when the light emitting duration of a certain sub-pixel reaches the preset time threshold, the standby pixel corresponding to the time threshold can be determined, namely the standby pixel corresponding to the sub-pixel, namely the target standby pixel, so that the sub-pixel is replaced by the determined target standby pixel and emits light through the target standby pixel, and the replaced sub-pixel does not emit light any more, thereby reducing the loss of the OLED and realizing the brightness and chrominance compensation of the sub-pixel.
In the embodiment of the invention, the standby pixel points and the time threshold corresponding to each sub-pixel point can be preset, so that when the fact that the light-emitting duration of a certain sub-pixel point exceeds the preset time threshold is detected, the standby pixel point associated with the sub-pixel point and the time threshold can be determined, the sub-pixel point is replaced by the associated standby pixel point, and the standby pixel point is called to emit light, so that the loss of the OLED is reduced, the fact that the brightness and the chroma of the OLED are compensated through the preset standby pixel point after the OLED is used for a period of time is realized, and the display uniformity of a display screen is improved.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a pixel calling device according to an embodiment of the present invention. Specifically, the device of the embodiment of the present invention may be disposed in the terminal, a display screen of the terminal is composed of at least one screen pixel, each screen pixel includes a red sub-pixel (R), a green sub-pixel (G), and a blue sub-pixel (B), and further, the display screen further includes at least one standby pixel. As shown in fig. 3, the pixel calling apparatus according to the embodiment of the present invention may include a time detection module 11, a backup determination module 12, and a replacement module 13. Wherein,
the time detection module 11 is configured to count the screen-on duration of the display screen, and detect whether the counted screen-on duration exceeds a preset time threshold.
In a specific embodiment, in addition to the screen pixel (or simply referred to as "pixel") corresponding to the currently normally operating RGB, the terminal display screen is preset with a plurality of standby pixels, where the standby pixels may be one or more, and include one or more sub-pixels for displaying red, green, and blue, specifically, one standby pixel may be preset for each sub-pixel of the screen pixel, or one standby pixel may be preset for only one sub-pixel of the screen pixel, for example, a standby pixel is preset for only a blue sub-pixel with fast aging (attenuation), which is not limited in the embodiment of the present invention. The standby pixel points are independently controlled, so that pixel switching can be performed when needed, and a certain sub-pixel point in the screen pixel is replaced by the corresponding standby pixel point to emit light.
The backup determining module 12 is configured to determine, when the time detecting module 11 detects that the screen-on duration exceeds the time threshold, a target backup pixel point associated with the time threshold from the at least one backup pixel point.
In a specific embodiment, the backup determining module 12 may select whether to start the standby pixel according to the aging degree of the display screen pixel, for example, the time detecting module 11 may count the screen-on duration of the display screen of the terminal to determine whether to start the standby pixel, and specifically, when the screen-on duration exceeds a preset time threshold, the backup determining module 12 may determine the standby pixel that needs to be started, that is, the target standby pixel. Further, when the time detection module 11 detects that the screen-up time exceeds the time threshold, the replacement module 13 may be notified to prepare for pixel replacement.
The replacing module 13 is configured to replace the target sub-pixel in the screen pixel with the target standby pixel determined by the backup determining module 12, and call the target standby pixel to emit light.
In a specific embodiment, after the backup determining module 12 determines the target standby pixel needing to be started, the replacing module 13 may use a certain sub-pixel in the screen pixel as the target sub-pixel, and replace the target sub-pixel with the target standby pixel, so as to emit light through the target standby pixel, and the replaced target sub-pixel does not emit light any more.
Optionally, since the attenuation of the blue luminescent material in the OLED, that is, the blue sub-pixel point, is generally fastest, and is often several times that of the red and green luminescent materials, the target sub-pixel point may be a blue sub-pixel point in the screen pixel, and the target standby pixel point is a pre-backed blue sub-pixel point.
In the embodiment of the invention, whether the screen-on duration of the display screen of the terminal exceeds the preset time threshold can be detected, and the target standby pixel point associated with the time threshold is determined from at least one preset standby pixel point when the time threshold is exceeded, so that a certain target sub-pixel point in the screen pixel is replaced by the target standby pixel point, and the target standby pixel point is called to emit light, thereby realizing that the brightness of the OLED is compensated by the preset standby pixel point after the OLED is used for a period of time, reducing the loss of the OLED, and improving the display uniformity of the display screen.
Further, referring to fig. 4, fig. 4 is a schematic structural diagram of another pixel calling device according to an embodiment of the present invention. Specifically, the apparatus according to the embodiment of the present invention includes the time detection module 11, the backup determination module 12, and the replacement module 13 of the pixel calling apparatus in the embodiment corresponding to fig. 3. Further, in the embodiment of the present invention, the apparatus may further include:
the attenuation detection module 14 is configured to obtain an attenuation speed of each sub-pixel in the screen pixel;
and the threshold setting module 15 is configured to set a time threshold for each sub-pixel according to the attenuation speed of the sub-pixel, and associate the time threshold set for the sub-pixel with a standby pixel corresponding to the sub-pixel.
It should be understood that the faster the attenuation speed of a certain sub-pixel point in a screen pixel is, the smaller the time threshold corresponding to the sub-pixel point is, so that the sub-pixel point with the faster attenuation can be replaced in time, and the OLED loss is reduced. On the contrary, the slower the attenuation speed of the sub-pixel point is, the larger the time threshold corresponding to the sub-pixel point is.
Optionally, in the embodiment of the present invention, each sub-pixel point in the screen pixel corresponds to at least one standby pixel point; the time detection module 11 may be specifically configured to:
respectively counting the luminous time of each sub-pixel point in the screen pixel, and judging whether the luminous time of each sub-pixel point exceeds a preset time threshold corresponding to the sub-pixel point;
the backup determination module 12 may be specifically configured to:
and if the time threshold corresponding to the sub-pixel point is exceeded, determining a standby pixel point corresponding to the sub-pixel point, and taking the determined standby pixel point as a target standby pixel point.
Further optionally, in the embodiment of the present invention, a specific manner of counting the light emitting time of the sub-pixel in the screen pixel by the time detection module 11 may be as follows:
acquiring states of sub-pixel points in the screen pixels, wherein the states comprise a light-emitting state and a non-light-emitting state;
when the sub pixel point is in the non-luminous state, stopping timing;
and when the state of the sub-pixel point is a luminous state, counting the luminous time of the sub-pixel point.
In a specific embodiment, the time detection module 11 may determine the aging degree of the sub-pixel points in the screen pixel by counting the screen-on duration of the display screen of the terminal, so as to trigger the backup determination module 12 to determine the standby pixel that needs to be started, for example, the time detection module 11 may determine whether the corresponding standby pixel point needs to be started by counting the light-emitting duration of each sub-pixel point, so as to improve the accuracy of the starting time of the standby pixel point.
Specifically, when the time detection module 11 detects that the light-emitting duration of a certain sub-pixel reaches the preset time threshold, the backup determination module 12 can determine the standby pixel corresponding to the time threshold, that is, the standby pixel corresponding to the sub-pixel, that is, the target standby pixel, so that the replacement module 13 can replace the sub-pixel with the determined target standby pixel, and emit light through the target standby pixel, and the replaced sub-pixel does not emit light any more, thereby reducing the OLED loss, and realizing the luminance and chrominance compensation of the sub-pixel.
In the embodiment of the invention, the standby pixel points and the time threshold corresponding to each sub-pixel point can be preset, so that when the fact that the light-emitting duration of a certain sub-pixel point exceeds the preset time threshold is detected, the standby pixel point associated with the sub-pixel point and the time threshold can be determined, the sub-pixel point is replaced by the associated standby pixel point, and the standby pixel point is called to emit light, so that the loss of the OLED is reduced, the fact that the brightness and the chroma of the OLED are compensated through the preset standby pixel point after the OLED is used for a period of time is realized, and the display uniformity of a display screen is improved.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention, configured to execute the pixel calling method. Specifically, as shown in fig. 5, the terminal according to the embodiment of the present invention may include: at least one processor 100, at least one input device 200, at least one output device 300, memory 500, etc. Wherein the components are communicatively coupled via one or more buses 400. Those skilled in the art will appreciate that the configuration of the terminal shown in fig. 5 is not intended to limit embodiments of the present invention, and may be a bus configuration, a star configuration, a combination of more or fewer components than those shown, or a different arrangement of components. Wherein:
the processor 100 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing programs and/or modules stored in the memory 500 and calling data stored in the memory 500. The processor 100 may be composed of an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs connected with the same or different functions. For example, the processor 100 may include only a Central Processing Unit (CPU), or may be a combination of a CPU, a Digital Signal Processor (DSP), a Graphics Processing Unit (GPU), and various control chips. In the embodiment of the present invention, the CPU may be a single operation core, or may include multiple operation cores.
The input device 200 may include a standard touch screen, keyboard, camera, etc., and may also include a wired interface, wireless interface, etc.
The output device 300 may include a display screen, a speaker, etc., and may also include a wired interface, a wireless interface, etc.
The memory 500 may be used to store software programs and modules, and the processor 100, the input device 200, and the output device 300 execute various functional applications of the terminal and implement data processing by calling the software programs and modules stored in the memory 500. The memory 500 mainly includes a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like; the data storage area may store data created according to the use of the terminal, and the like. In the embodiment of the present invention, the operating system may be an Android system, an iOS system, a Windows operating system, or the like.
Specifically, the display screen of the terminal is composed of at least one screen pixel, and each screen pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and is characterized in that the display screen further includes at least one standby pixel, and the processor 100 calls an application program stored in the memory 500 to execute the following steps:
counting the screen-on duration of the display screen, and detecting whether the counted screen-on duration exceeds a preset time threshold;
if the time threshold value is exceeded, determining a target standby pixel point associated with the time threshold value from the at least one standby pixel point;
and replacing a target sub-pixel point in the screen pixel by the target standby pixel point, and calling the target standby pixel point to emit light.
Optionally, before the processor 100 calls the application program stored in the memory 500 to execute whether the screen-on duration of the detection statistic exceeds a preset time threshold, the processor is further configured to execute the following steps:
respectively acquiring the attenuation speed of each sub-pixel point in the screen pixel;
and setting a time threshold for each sub-pixel point according to the attenuation speed of the sub-pixel point, and associating the time threshold set for the sub-pixel point with a standby pixel point corresponding to the sub-pixel point.
Optionally, each sub-pixel point in the screen pixel corresponds to at least one standby pixel point; the processor 100 calls an application program stored in the memory 500 to perform the counting of the screen-on duration of the display screen, and detects whether the counted screen-on duration exceeds a preset time threshold, specifically performing the following steps:
respectively counting the luminous time of each sub-pixel point in the screen pixel, and judging whether the luminous time of each sub-pixel point exceeds a preset time threshold corresponding to the sub-pixel point;
the determining a target backup pixel point associated with the time threshold from the at least one backup pixel point comprises:
and if the time threshold corresponding to the sub-pixel point is exceeded, determining a standby pixel point corresponding to the sub-pixel point, and taking the determined standby pixel point as a target standby pixel point.
Optionally, the processor 100 calls an application program stored in the memory 500 to perform statistics on the light emitting duration of the sub-pixel in the screen pixel, and specifically performs the following steps:
acquiring states of sub-pixel points in the screen pixels, wherein the states comprise a light-emitting state and a non-light-emitting state;
when the sub pixel point is in the non-luminous state, stopping timing;
and when the state of the sub-pixel point is a luminous state, counting the luminous time of the sub-pixel point.
Optionally, the target sub-pixel is a blue sub-pixel in the screen pixel, and the target standby pixel is a pre-backed blue sub-pixel.
In the embodiment of the invention, whether the screen-on duration of the display screen of the terminal exceeds the preset time threshold can be detected, and the target standby pixel point associated with the time threshold is determined from at least one preset standby pixel point when the time threshold is exceeded, so that a certain target sub-pixel point in the screen pixel is replaced by the target standby pixel point, and the target standby pixel point is called to emit light, thereby realizing that the brightness of the OLED is compensated by the preset standby pixel point after the OLED is used for a period of time, reducing the loss of the OLED, and improving the display uniformity of the display screen.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware form, and can also be realized in a form of hardware and a software functional module.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A pixel calling method is applied to a terminal, a display screen of the terminal is composed of at least one screen pixel, each screen pixel comprises a red sub-pixel point, a green sub-pixel point and a blue sub-pixel point, the pixel calling method is characterized in that the display screen further comprises at least one standby pixel point, and the method comprises the following steps:
counting the screen-on duration of the display screen, and detecting whether the counted screen-on duration exceeds a preset time threshold;
if the time threshold value is exceeded, determining a target standby pixel point associated with the time threshold value from the at least one standby pixel point;
replacing a target sub-pixel point in the screen pixel by the target standby pixel point, and calling the target standby pixel point to emit light;
each sub-pixel point in the screen pixel corresponds to at least one standby pixel point; the counting of the screen-on duration of the display screen and the detection of whether the counted screen-on duration exceeds a preset time threshold include:
respectively counting the luminous time of each sub-pixel point in the screen pixel, and judging whether the luminous time of each sub-pixel point exceeds a preset time threshold corresponding to the sub-pixel point;
the determining a target backup pixel point associated with the time threshold from the at least one backup pixel point comprises:
and if the time threshold corresponding to the sub-pixel point is exceeded, determining a standby pixel point corresponding to the sub-pixel point, and taking the determined standby pixel point as a target standby pixel point.
2. The method according to claim 1, wherein before the detecting whether the counted on-screen duration exceeds a preset time threshold, the method further comprises:
respectively acquiring the attenuation speed of each sub-pixel point in the screen pixel;
and setting a time threshold for each sub-pixel point according to the attenuation speed of the sub-pixel point, and associating the time threshold set for the sub-pixel point with a standby pixel point corresponding to the sub-pixel point.
3. The method of claim 1, wherein counting the light emitting time of the sub-pixels in the screen pixel comprises:
acquiring states of sub-pixel points in the screen pixels, wherein the states comprise a light-emitting state and a non-light-emitting state;
when the sub pixel point is in the non-luminous state, stopping timing;
and when the state of the sub-pixel point is a luminous state, counting the luminous time of the sub-pixel point.
4. The utility model provides a pixel calling device, sets up in the terminal, the display screen of terminal comprises at least one screen pixel, and each screen pixel includes red sub pixel point, green sub pixel point and blue sub pixel point, its characterized in that, the display screen still includes at least one spare pixel point, the device includes:
the time detection module is used for counting the screen-on duration of the display screen and detecting whether the counted screen-on duration exceeds a preset time threshold value;
the backup determining module is used for determining a target standby pixel point associated with the time threshold value from the at least one standby pixel point when the time detecting module detects that the screen-on duration exceeds the time threshold value;
the replacing module is used for replacing the target sub-pixel points in the screen pixels by the target standby pixel points determined by the backup determining module and calling the target standby pixel points to emit light;
each sub-pixel point in the screen pixel corresponds to at least one standby pixel point; the time detection module is specifically configured to:
respectively counting the luminous time of each sub-pixel point in the screen pixel, and judging whether the luminous time of each sub-pixel point exceeds a preset time threshold corresponding to the sub-pixel point;
the backup determination module is specifically configured to:
and if the time threshold corresponding to the sub-pixel point is exceeded, determining a standby pixel point corresponding to the sub-pixel point, and taking the determined standby pixel point as a target standby pixel point.
5. The apparatus of claim 4, further comprising:
the attenuation detection module is used for respectively acquiring the attenuation speed of each sub-pixel point in the screen pixel;
and the threshold setting module is used for setting a time threshold for each sub-pixel point according to the attenuation speed of the sub-pixel point and associating the time threshold set for the sub-pixel point with the standby pixel point corresponding to the sub-pixel point.
6. The apparatus according to claim 4, wherein the specific way for the time detection module to count the light emitting duration of the sub-pixel in the screen pixel is as follows:
acquiring states of sub-pixel points in the screen pixels, wherein the states comprise a light-emitting state and a non-light-emitting state;
when the sub pixel point is in the non-luminous state, stopping timing;
and when the state of the sub-pixel point is a luminous state, counting the luminous time of the sub-pixel point.
7. A terminal, comprising:
at least one processor, at least one input device, at least one output device, and memory;
wherein, the output device comprises a display screen;
wherein, the display screen of the terminal is composed of at least one screen pixel, each screen pixel comprises a red sub-pixel point, a green sub-pixel point and a blue sub-pixel point, wherein, the display screen also comprises at least one standby pixel point,
wherein the processor invokes an application program stored in the memory for performing the method of any of claims 1 to 3.
8. A storage medium characterized in that,
wherein the storage medium stores a software functional module, wherein the software functional module comprises instructions to cause a computer device to perform the method of any one of claims 1 to 3.
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| CN201711375672.0A CN107945735B (en) | 2016-03-31 | 2016-03-31 | Pixel calling method and device and related medium product |
| CN201610202661.1A CN105788528B (en) | 2016-03-31 | 2016-03-31 | A kind of pixel call method and device |
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| CN110738969A (en) | 2019-10-31 | 2020-01-31 | 云谷（固安）科技有限公司 | Display device and apparatus |
| CN112233609A (en) * | 2020-10-10 | 2021-01-15 | Oppo广东移动通信有限公司 | Electronic equipment and display module |
| CN113707085A (en) * | 2021-08-03 | 2021-11-26 | 芯颖科技有限公司 | Display screen brightness compensation device and method at sub-pixel level and display screen |
| CN113724611B (en) * | 2021-08-30 | 2022-08-23 | 武汉华星光电半导体显示技术有限公司 | Display panel |
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| CN103366682A (en) * | 2013-07-25 | 2013-10-23 | 京东方科技集团股份有限公司 | Alternating current drive OLED (Organic Light Emitting Diode) circuit, driving method and display device |
| CN103531152A (en) * | 2013-11-04 | 2014-01-22 | 广东威创视讯科技股份有限公司 | Display control method and device |
| CN103855192A (en) * | 2014-02-20 | 2014-06-11 | 深圳市华星光电技术有限公司 | AMOLED display device and pixel driving method thereof |
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| CN101859543B (en) * | 2010-05-26 | 2012-06-27 | 四川虹视显示技术有限公司 | Method for improving brightness uniformity of AMOLED panel |
| KR102208918B1 (en) * | 2013-10-22 | 2021-01-29 | 삼성디스플레이 주식회사 | Organic light emitting display apparatus |
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| CN103366682A (en) * | 2013-07-25 | 2013-10-23 | 京东方科技集团股份有限公司 | Alternating current drive OLED (Organic Light Emitting Diode) circuit, driving method and display device |
| CN103531152A (en) * | 2013-11-04 | 2014-01-22 | 广东威创视讯科技股份有限公司 | Display control method and device |
| CN103855192A (en) * | 2014-02-20 | 2014-06-11 | 深圳市华星光电技术有限公司 | AMOLED display device and pixel driving method thereof |
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