CN114120897A - Method and device for adjusting display of display screen and terminal equipment - Google Patents
Method and device for adjusting display of display screen and terminal equipment Download PDFInfo
- Publication number
- CN114120897A CN114120897A CN202010863864.1A CN202010863864A CN114120897A CN 114120897 A CN114120897 A CN 114120897A CN 202010863864 A CN202010863864 A CN 202010863864A CN 114120897 A CN114120897 A CN 114120897A
- Authority
- CN
- China
- Prior art keywords
- brightness
- display
- pixel
- display screen
- parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 58
- 230000032683 aging Effects 0.000 claims abstract description 70
- 230000015654 memory Effects 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 9
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000005525 hole transport Effects 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005281 excited state Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000004438 eyesight Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000016776 visual perception Effects 0.000 description 2
- 229920001621 AMOLED Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- 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]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application relates to the technical field of display, and discloses a method and a device for adjusting display of a display screen and a mobile terminal. The method is applied to the terminal equipment and comprises the following steps: acquiring an aging parameter for each pixel in a display area of a display screen; judging whether an aging pixel exists in a display area of the display screen, wherein the aging pixel is a pixel with an aging parameter exceeding a preset parameter threshold; acquiring a first brightness parameter aiming at the aged pixels and a second brightness parameter aiming at the pixels except the aged pixels; and controlling a display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter. By the method, the brightness of each pixel in the display area of the display screen is more uniform, so that the display effect of the display screen is better.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a method and an apparatus for adjusting display on a display screen, and a terminal device.
Background
An organic light-emitting diode (OLED) is a display technology with self-luminous materials, an OLED display screen is composed of a plurality of pixel points, each pixel point is composed of red, green and blue sub-pixels, and each pixel point displays colors by adjusting color matching of the red, green and blue sub-pixels, so that a display picture is formed by utilizing the pixel points. Because the pixel can both self-luminous, the luminous time of every pixel is the same, and the ageing phenomenon can appear more easily for the longer pixel of luminous time, and the ageing inhomogeneous condition that leads to the screen display luminance to appear of pixel, and the pixel ageing degree of some regions of display screen is very high even, and the display luminance of these regions is general very low, and is great with the display luminance difference in other regions, and this kind of visual difference can seriously influence user experience.
Disclosure of Invention
In order to solve the technical problem, embodiments of the present application provide a method and an apparatus for adjusting display of a display screen, and a terminal device, which can solve the technical problem in the prior art that a display effect is affected due to uneven brightness of a display area of the display screen caused by pixel aging of the display area of the display screen.
The embodiment of the application provides the following technical scheme for solving the technical problems:
in a first aspect, an embodiment of the present application provides a method for adjusting display of a display screen, which is applied to a terminal device, where the terminal device includes the display screen and a display driving circuit, and the method includes: acquiring an aging parameter for each pixel in the display area of the display screen; judging whether an aging pixel exists in the display area of the display screen, wherein the aging pixel is a pixel with an aging parameter exceeding a preset parameter threshold; acquiring a first brightness parameter for the aged pixel and a second brightness parameter for pixels other than the aged pixel; and controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter.
Optionally, the controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter includes: calculating a brightness parameter difference value of the second brightness parameter and the first brightness parameter; determining a compensation value of a pixel voltage for indicating the pixel brightness according to the brightness parameter difference; and controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the compensation value of the pixel voltage.
Optionally, the determining a compensation value of a pixel voltage for indicating the pixel brightness according to the brightness parameter difference value; acquiring a preset relation table of the brightness parameter change value and the pixel voltage; searching the pixel voltage corresponding to the brightness parameter difference value in the preset relation table; and determining the pixel voltage corresponding to the brightness parameter difference value as a compensation value of the pixel voltage.
Optionally, the controlling the display driving circuit to adjust the brightness of the display area of the display screen includes: and controlling the display driving circuit to adjust the brightness of the pixels except the aged pixels so as to adjust the brightness of the display area of the display screen.
Optionally, the obtaining a first brightness parameter for a plurality of aged pixels in a display area of the display screen includes: acquiring a plurality of brightness parameters corresponding to a plurality of aged pixels; calculating a brightness parameter average value of the plurality of brightness parameters; determining the brightness parameter average as the first brightness parameter.
Optionally, the obtaining an aging parameter for each pixel of the display area of the display screen includes: after the terminal equipment is initialized, counting the screen lightening time of the display area of the display screen; judging whether the screen lightening time is greater than a preset time threshold value or not; and if so, acquiring the aging parameter of each pixel in the display area of the display screen.
Optionally, before controlling the display driving circuit to adjust the brightness of the display area of the display screen, the method further includes: detecting whether a brightness adjusting condition is met; and if the brightness adjusting condition is met, controlling the display driving circuit to adjust the brightness of the display area of the display screen.
In a second aspect, an embodiment of the present application provides an apparatus for adjusting a display of a display screen, including: the first acquisition module is used for acquiring the aging parameter of each pixel in the display area of the display screen; the judging module is used for judging whether an aging pixel exists in the display area of the display screen, wherein the aging pixel is a pixel of which the aging parameter exceeds a preset parameter threshold; a second obtaining module for obtaining a first luminance parameter for the aged pixel and a second luminance parameter for pixels other than the aged pixel; and the control module is used for controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter.
In a third aspect, an embodiment of the present application provides a terminal device, including: a display screen; the display driving circuit is connected with the display screen and used for driving pixels of the display screen; a controller connected to the display driving circuit, the controller including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method as described above.
In a fourth aspect, embodiments of the present application provide a non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by an electronic device, cause the electronic device to perform the method as described above.
The beneficial effects of the embodiment of the application are that: different from the prior art, the method, the device and the mobile terminal for adjusting the display of the display screen are provided. The method is applied to the terminal equipment and comprises the following steps: acquiring an aging parameter for each pixel in a display area of a display screen; judging whether an aging pixel exists in a display area of the display screen, wherein the aging pixel is a pixel with an aging parameter exceeding a preset parameter threshold; acquiring a first brightness parameter aiming at the aged pixels and a second brightness parameter aiming at the pixels except the aged pixels; and controlling a display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter. By the method, the brightness of each pixel in the display area of the display screen is more uniform, so that the display effect of the display screen is better.
Drawings
The embodiments are illustrated by way of example only in the accompanying drawings, in which like reference numerals refer to similar elements and which are not to be construed as limiting the embodiments, and in which the figures are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an OLED display module;
FIG. 3 is a schematic diagram of a hardware configuration of a controller of FIG. 1;
FIG. 4 is a flow chart illustrating a method for adjusting a display of a display screen according to an embodiment of the present application;
FIG. 5 is a schematic flow chart of S10 in FIG. 4;
FIG. 6 is a schematic flow chart of S30 in FIG. 4;
FIG. 7 is a schematic flow chart of S40 in FIG. 4;
FIG. 8 is a schematic flow chart of S402 in FIG. 7;
fig. 9 is a schematic structural diagram of an apparatus for adjusting a display of a display screen according to an embodiment of the present application.
Detailed Description
To facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
The method and the device for adjusting display of the display screen are applied to the terminal device, the terminal device comprises the display screen, and the brightness of the display area of the display screen can be adjusted according to the brightness parameters of the aged pixels and the brightness parameters of the pixels except the aged pixels by identifying the aged pixels of the display area of the display screen and obtaining the brightness parameters of the aged pixels, so that the brightness of each pixel in the display area of the display screen is more uniform, and the user experience is improved.
The terminal device provided by the embodiment of the present application may exist in various forms, including but not limited to any one of the following:
(1) a mobile communication device: such devices are characterized by mobile communication functions and are primarily targeted at providing visual displays, audio, and data communications. Such electronic devices include: smart phones, multimedia phones, functional phones, and low-end phones, etc.
(2) The mobile personal computer equipment belongs to the category of personal computers, has the functions of calculation and processing, and generally has the characteristics of audio and video playing and mobile internet access. Such electronic devices include: PDA (Personal Digital Assistant, also known as palmtop), MID (Mobile Internet Devices), and UMPC (Ultra-Mobile Personal Computer), etc.
(3) A portable entertainment device: such devices can display and play video content, and generally also have mobile internet access characteristics. Such apparatus includes: video players, handheld game consoles, intelligent toys, portable vehicle navigation devices, and the like.
(4) And other electronic equipment with a video playing function and/or an internet surfing function.
In a first aspect, please refer to fig. 1, where fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 1, the terminal device 100 includes a display screen 10, a display drive circuit 20, and a controller 30.
The display screen 10 is used for displaying pictures and can be used as a core component of human-computer interaction. Taking a mobile phone Display screen as an example, the mobile phone Display screen mainly comprises a cover plate glass, a touch module, a Display module and other parts, wherein the cover plate glass is a part playing a protection role on the outermost layer of the mobile phone Display screen, the touch module is a key link for improving the human-computer interaction experience of the mobile phone, at present, tddi (touch with Display integration) integrating a touch IC and a panel drive IC is taken as a mainstream solution, the Display module is divided into two types of LCD (Liquid Crystal Display) and OLED (organic light emitting diode), the LCD Display module mainly comprises a polarizer, a color filter, a Liquid Crystal, a TFT (glass) and a backlight plate, and the OLED Display module mainly comprises a substrate, a cathode, an electron transmission layer, a light emitting layer, a hole transmission layer and an anode. The OLED display module is further divided into an active OLED (amoled) display module and a passive OLED (pmoled) display module according to a driving method.
In some embodiments, the display screen 10 is an OLED display module. As shown in fig. 2, in the OLED display module, a substrate is a base of the whole module and is used to support the whole module, and glass is usually used as the substrate, but if a flexible OLED display screen needs to be manufactured, other materials, such as transparent plastics, etc., need to be used as the substrate. The anode is connected with a positive electrode with external driving voltage, holes in the anode can move to the light-emitting layer under the driving of the external driving voltage, the anode needs to have certain light transmittance during working, light emitted from the inside can be observed by the outside, and the most commonly used material of the anode is ITO (indium tin oxide). The hole transport layer is responsible for transporting holes to the light emitting layer. The light-emitting layer is where electrons and holes recombine to form excitons, which then undergo exciton de-excitation to emit light. The electrons in the cathode are driven by an applied driving voltage to move toward the light-emitting layer, and then recombine with the holes from the anode in the light-emitting layer.
The light emitting principle of the OLED display module is as follows:
firstly, electrons in the cathode and holes in the anode move under the drive of an external drive voltage, and in the moving process of the light-emitting layer, if the device comprises an electron injection layer and a hole injection layer, the electrons and the holes firstly need to overcome energy level barriers between the cathode and the electron injection layer and between the anode and the hole injection layer, and then move through an electron transport layer and a hole transport layer of the electron injection layer and the hole injection layer. The electron injection layer and the hole injection layer can increase the efficiency and the lifetime of the display module.
Subsequently, under the driving of an applied driving voltage, electrons from the cathode and holes from the anode move to the electron transport layer and the hole transport layer, respectively, and the electron transport layer and the hole transport layer move the electrons and the holes to the interface of the light emitting layer, respectively. At the same time, the electron transport layer and the hole transport layer block holes from the anode and electrons from the cathode, respectively, at the interface of the light emitting layer, so that electrons and holes at the interface of the light emitting layer are accumulated.
Next, when the number of electrons and holes at the interface of the light emitting layer reaches a certain number, the electrons and holes are recombined and excitons are generated in the light emitting layer.
Finally, the excitons generated at the light emitting layer can activate the organic molecules in the light emitting layer, so that electrons at the outermost layer of the organic molecules are transited from the ground state to the excited state, and the electrons in the excited state are extremely unstable and can be transited to the ground state, and energy can be released in the form of light in the transition process, so that the light emitting of the display module is realized.
The display driving circuit 20 is connected to the display panel 10 and is configured to drive the pixels of the display panel 10. The display driving circuit 20 is a main part of the display panel imaging system, and generally integrates components such as resistors, regulators, comparators, and power transistors, and is responsible for driving the display panel 10 and controlling the driving current.
In some embodiments, the display driver circuit 20 is also used to detect parameters in the display screen 10 that characterize the aging of each pixel.
The controller 30 is connected to the display drive circuit 20. On one hand, the controller 30 may obtain a parameter that may represent an aging degree of each pixel through the display driving circuit 20, and calculate an aging parameter of each pixel according to the parameter of the aging degree of each pixel, and the controller 30 may also obtain the aging parameter for each pixel in the display area of the display screen through other manners, then determine whether there is an aged pixel in the display area of the display screen whose aging parameter exceeds a preset parameter threshold, and then obtain a first brightness parameter for the aged pixel and a second brightness parameter for pixels other than the aged pixel. On the other hand, the controller 30 controls the display driving circuit 20 to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter.
For example, first, the controller 30 obtains an aging parameter for each pixel in the display area of the display screen, wherein, the display area of the display screen can be the displayable area of the whole display screen or a part of the display area in the display screen, when the display area of the display screen is a part of the display area, the controller 30 may previously divide a plurality of display areas in the entire display screen, the controller 30 acquires the aging parameter for each pixel in one or more of the plurality of display areas, because the display screen generally has the area for displaying the fixed picture, such as the navigation bar, the basic information display bar, the navigation touch keys and the like, the pixel light-emitting time of the part of the display area is longer, the aging probability of the pixel is higher, therefore, when the controller 30 acquires the aging parameter for each pixel in the display area of the display screen, the aging parameter for each pixel in the portion of the display area may be preferentially acquired. The aging parameter is used to characterize how much each pixel ages, e.g., the greater the aging parameter, the greater the corresponding degree of aging.
Next, the controller 30 prestores a preset parameter threshold, and compares the obtained aging parameter of each pixel with the preset parameter threshold, if a pixel whose aging parameter exceeds the preset parameter threshold exists, the pixel is an aged pixel, and when an aged pixel appears, pixels other than the aged pixel are non-aged pixels. Wherein, the preset parameter threshold value can be programmed by a user according to the actual detection requirement.
Again, the controller 30 acquires the first luminance parameter for the aged pixel and the second luminance parameter for the pixels other than the aged pixel. The luminance parameters may be obtained in various ways, and in one possible implementation, the test image is output to the display screen 10, and then the luminance parameters of each pixel in the display screen 10 are obtained, for example, the luminance parameters are obtained in an optical extraction manner, in which the luminance signals are extracted by taking a picture of the charge coupled device after the back plate is lit up, and the luminance parameters are obtained in an electrical extraction manner, in which the electrical signals of the TFT and the OLED are extracted by the sensing circuit of the driving chip.
The brightness parameter is a parameter representing the brightness degree of a current display picture on a display area of the display screen, and if the brightness parameter is in positive correlation with the actual display brightness, the brightness corresponding to the aged pixel is less than the brightness of the non-aged pixel, that is, the first brightness parameter for the aged pixel is less than the second brightness parameter for the non-aged pixel.
In some embodiments, the controller 30 may first calculate a luminance parameter difference between the second luminance parameter and the first luminance parameter, then determine a compensation value of a pixel voltage for indicating the luminance of the pixel according to the luminance parameter difference, where each luminance parameter difference has a compensation value of a pixel voltage, and finally control the display driving circuit 20 to adjust the luminance of the display area of the display screen according to the compensation value of the pixel voltage corresponding to the luminance parameter difference.
In some embodiments, the controller 30 controls the display driving circuit 20 to adjust the brightness of the non-aged pixels to adjust the brightness of the display area of the display screen in the process of controlling the display driving circuit 20 to adjust the brightness of the display area of the display screen. The luminance parameter of the non-aged pixel is compensated according to the previously determined compensation value of the pixel voltage indicating the luminance of the pixel such that the luminance of the aged pixel tends to coincide with the luminance of the non-aged pixel.
In summary, the terminal device 100 can adjust the brightness of the display area of the display screen, so that the brightness of the display area of the entire display screen is uniform, which is beneficial to improving the display effect of the display area of the display screen, and further improving the user experience. And, since the object of compensation is a non-aged pixel, not an aged pixel, a phenomenon that aging of the aged pixel is aggravated does not occur.
In some embodiments, in the process of determining the compensation value of the pixel voltage for indicating the pixel brightness according to the brightness parameter difference obtained by the second brightness parameter and the first brightness parameter, the controller 30 first needs to obtain a preset relationship table of the brightness parameter variation value and the pixel voltage, where the preset relationship table is used to describe the corresponding relationship between the brightness parameter variation value and the pixel voltage, and after calculating the brightness parameter difference between the second brightness parameter and the first brightness parameter, the brightness parameter variation value equal to the brightness parameter difference value can be determined through the preset relationship table, and then according to the corresponding relationship, the pixel voltage corresponding to the brightness parameter variation value is found out, and finally the display driving circuit 20 controls the pixel voltage of the corresponding pixel to control the light emitting brightness of the pixel, so that the obtained pixel voltage can be used as the compensation value to compensate the pixel voltage of the non-aging pixel, thereby achieving the purpose that the brightness of the aged pixels is consistent with that of the non-aged pixels.
In some embodiments, in the process of obtaining the first brightness parameter for the aged pixels, if a plurality of aged pixels exist in the display area of the display screen, because brightness of the plurality of aged pixels is inconsistent, the controller 30 may first obtain a plurality of brightness parameters corresponding to the plurality of aged pixels, then average the plurality of brightness parameters, calculate a brightness parameter average value of the plurality of brightness parameters, determine the brightness parameter average value as the first brightness parameter, which is also the brightness parameter for the aged pixels, and then the subsequent controller 30 controls the display driving circuit 20 to compensate for the non-aged pixels according to the first brightness parameter for the aged pixels and the second brightness parameter for the non-aged pixels, so as to make the brightness of the display area of the display screen uniform.
In some embodiments, when acquiring the aging parameter for each pixel in the display area of the display screen, since the aging of the pixel is a long process, in order to avoid the controller 30 from acquiring the aging parameter frequently, the aging parameter of each pixel in the display area of the display screen may be acquired according to the screen-on time of the display area of the display screen, first, after the terminal device 100 is initialized (powered on), the screen-on time of the display area of the display screen is counted by a timer, the timing is stopped at each screen-off time, the timing is continued at each screen-on time, the counting process is performed until the terminal device 100 is powered off, the controller 30 has a preset time threshold in advance, when the screen-on time counted by the timer is less than the preset time threshold, the controller 30 does not acquire the aging parameter of each pixel in the display area of the display screen, and only when the screen-on time counted by the timer is greater than the preset time threshold, the aging parameter of each pixel in the display area of the display screen is acquired, therefore, it can reduce the processing load or performance footprint of the controller 30.
It is understood that after the terminal device 100 is initialized (powered on), the aging parameters of each pixel may be obtained through a work queue at preset time intervals, for example, 6 hours. The preset time interval can be programmed according to the actual detection needs of the user.
In some embodiments, before the controller 30 controls the display driving circuit 20 to adjust the brightness of the display area of the display screen, it needs to detect whether the brightness adjustment condition is satisfied, if the brightness adjustment condition is not satisfied, even if it is determined that the brightness compensation needs to be performed on the non-aged pixels, the display driving circuit 20 cannot be immediately controlled to perform the brightness compensation on the non-aged pixels, and only when the brightness adjustment condition is satisfied, the display driving circuit 20 is controlled to perform the brightness compensation on the non-aged pixels. For example, the brightness adjustment condition may be that a screen-lighting event is acquired, and the controller 30 acquires the screen-lighting event when the display screen 10 is lit every time, that is, the controller 30 controls the display driving circuit 20 to perform brightness compensation on the non-aging pixels in a very short time from the screen-off to the screen-lighting of the display screen 10, which can prevent the display effect of the display area of the display screen from changing suddenly in the using process of the user, and bring discomfort to the user in the sense of sight or vision, thereby improving the user experience.
It should be noted that, since the display driving circuit 20 is reset every time the display screen 10 is turned off, that is, the driving of the pixels of the display screen 10 is stopped, if it is determined that the non-aged pixels need to be compensated, the compensation needs to be performed again every time the display screen 10 is turned on, and for each non-aged pixel, a piece of compensation information is obtained, the controller 30 stores the compensation information of all the non-aged pixels in the memory of the controller 30, and when the compensation information needs to be read, the controller 30 can read the compensation information in the memory, so that the controller 30 controls the display driving circuit 20 to compensate the non-aged pixels through the compensation information every time the display screen 10 is turned on.
It is understood that the brightness adjustment condition may also be pixel movement, for example, when the user performs a half-screen operation or similar page-turning blinking, a local pixel does not emit light, and when the half-screen operation rebounds or the page-turning is completed and the picture refreshes again, the controller 30 controls the display driving circuit 20 to perform brightness compensation on the non-aged pixel, which does not cause discomfort in the sense of sight or in the sense of vision to the user, and thus it may also improve the user experience.
In the various embodiments described above, the controller 30 may be a general purpose processor, an AP (application processor), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a PLC, a Field Programmable Gate Array (FPGA), a single chip, an ARM (Acorn RISC machine) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. Also, the controller 30 may be any conventional processor, controller, microcontroller, or state machine. The controller 30 may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
Referring to fig. 3, fig. 3 is a schematic diagram of a hardware structure of the controller in fig. 1. As shown in fig. 3, the controller 30 includes one or more processors 301 and a memory 302. In fig. 3, one processor 301 is taken as an example.
The processor 301 and the memory 302 may be connected by a bus or other means, such as the bus connection in fig. 3.
The memory 302 is a non-volatile computer-readable storage medium, and can be used for storing non-volatile software programs, non-volatile computer-executable programs, modules, and the like, such as program instructions corresponding to the methods in the embodiments described below in the present application and modules corresponding to the apparatuses in the embodiments described below in the present application. The processor 301 executes various functional applications and data processing of a method of adjusting a display screen display by executing nonvolatile software programs, instructions, and modules stored in the memory 302, i.e., implements the functions of the various modules of the method embodiments and the device embodiments described below.
The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the stored data area may store data created from use of a device that adjusts the display of the display screen, compensation parameters for non-aged pixels, and the like.
Further, the memory 302 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 302 comprises memory located remotely from the processor 301, and these remote memories may be connected to the processor 301 through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The program instructions and one or more modules are stored in the memory 302 and, when executed by the one or more processors 301, perform the steps of a method of adjusting a display screen display in any of the method embodiments described below or implement the functions of the modules of an apparatus of adjusting a display screen display in any of the apparatus embodiments described below.
The product can execute the method provided by the following embodiments of the application, and has corresponding functional modules and beneficial effects of the execution method. For details of the technique not described in detail in this example, reference may be made to the method provided in the following example of the present application.
In a second aspect, please refer to fig. 4, where fig. 4 is a flowchart illustrating a method for adjusting a display of a display screen according to an embodiment of the present application. As shown in fig. 4, the method for adjusting the display of the display screen includes:
s10, acquiring an aging parameter for each pixel in a display area of the display screen;
s20, judging whether an aging pixel exists in the display area of the display screen, wherein the aging pixel is a pixel of which the aging parameter exceeds a preset parameter threshold;
s30, acquiring a first brightness parameter aiming at the aged pixel and a second brightness parameter aiming at the pixels except the aged pixel;
and S40, controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter.
Therefore, the brightness of each pixel in the display area of the display screen can be more uniform, the display effect of the display screen is better, and the user experience is improved.
In some embodiments, referring to fig. 5, S10 includes:
s101, after terminal equipment is initialized, counting the screen lightening time of a display area of a display screen;
s102, judging whether the screen lightening time is larger than a preset time threshold value or not;
s103, if the aging parameter is larger than the aging parameter, the aging parameter of each pixel in the display area of the display screen is obtained.
In some embodiments, a plurality of aged pixels exist in the display area of the display screen, and referring to fig. 6, S30 includes:
s301, acquiring a plurality of brightness parameters corresponding to a plurality of aged pixels;
s302, calculating a brightness parameter average value of a plurality of brightness parameters;
and S303, determining the average value of the brightness parameters as the first brightness parameters.
In some embodiments, before controlling the display driving circuit to adjust the brightness of the display area of the display screen in S40, the method includes: detecting whether a brightness adjusting condition is met; and if the brightness adjusting condition is met, controlling the display driving circuit to adjust the brightness of the display area of the display screen.
In some embodiments, in S40, controlling the display driving circuit to adjust the brightness of the display area of the display screen includes: and controlling the display driving circuit to adjust the brightness of the pixels except the aged pixels so as to adjust the brightness of the display area of the display screen.
In some embodiments, referring to fig. 7, S40 includes:
s401, calculating a brightness parameter difference value of the second brightness parameter and the first brightness parameter;
s402, determining a compensation value of pixel voltage for indicating pixel brightness according to the brightness parameter difference;
and S403, controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the compensation value of the pixel voltage.
In some embodiments, referring to fig. 8, S402 includes:
s4021, acquiring a preset relation table of a brightness parameter change value and pixel voltage;
s4022, searching a pixel voltage corresponding to the brightness parameter difference value in a preset relation table;
s4023, determining the pixel voltage corresponding to the brightness parameter difference value as a compensation value of the pixel voltage.
In a third aspect, please refer to fig. 9, where fig. 9 is a schematic structural diagram of an apparatus for adjusting display of a display screen according to an embodiment of the present disclosure. As shown in fig. 9, the apparatus 900 includes a first obtaining module 901, a determining module 902, a second obtaining module 903, and a control module 904, where the first obtaining module 901 is configured to obtain an aging parameter for each pixel in a display area of the display screen, the determining module 902 is configured to determine whether an aging pixel exists in the display area of the display screen, the aging pixel is a pixel whose aging parameter exceeds a preset parameter threshold, and the control module 904 is configured to control the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter.
In some embodiments, the first obtaining module 901 is specifically configured to: after the terminal equipment is initialized, counting the screen lightening time of a display area of the display screen, judging whether the screen lightening time is larger than a preset time threshold value, and if so, acquiring the aging parameter aiming at each pixel in the display area of the display screen.
In some embodiments, when a plurality of aged pixels exist in the display area of the display screen, the second obtaining module 903 is specifically configured to: the method comprises the steps of obtaining a plurality of brightness parameters corresponding to a plurality of aged pixels, calculating a brightness parameter average value of the brightness parameters, and determining the brightness parameter average value as a first brightness parameter.
In some embodiments, the control module 904 controls the display driving circuit to adjust the brightness of the display area of the display screen, including: and controlling the display driving circuit to adjust the brightness of the pixels except the aged pixels so as to adjust the brightness of the display area of the display screen.
In some embodiments, the control module 904 includes a calculating unit 9041, a determining unit 9042, and a control unit 9043, where the calculating unit 9041 is configured to calculate a luminance parameter difference between the second luminance parameter and the first luminance parameter, the determining unit 9042 is configured to determine a compensation value of a pixel voltage used for indicating the luminance of the pixel according to the luminance parameter difference, and the control unit 9043 is configured to control the display driving circuit to adjust the luminance of the display area of the display screen according to the compensation value of the pixel voltage.
In some embodiments, determination unit 9042 is specifically configured to: and acquiring a preset relation table of the brightness parameter change value and the pixel voltage, searching the pixel voltage corresponding to the brightness parameter difference value in the preset relation table, and determining the pixel voltage corresponding to the brightness parameter difference value as a compensation value of the pixel voltage.
In a fourth aspect, embodiments of the present application provide a non-transitory computer-readable storage medium storing computer-executable instructions, which are executed by one or more processors, such as the processor 301 in fig. 3, and enable the computer to perform the steps of a method for adjusting a display of a display screen in any of the above-mentioned method embodiments, or implement the functions of the modules of an apparatus for adjusting a display of a display screen in any of the above-mentioned apparatus embodiments.
In a fifth aspect, embodiments of the present application provide a computer program product comprising a computer program stored on a non-volatile computer-readable storage medium, the computer program comprising program instructions that, when executed by one or more processors, such as the processor 301 in fig. 3, cause the computer to perform the steps of a method for adjusting a display of a display screen in any of the above-mentioned method embodiments, or implement the functions of the modules in an apparatus for adjusting a display of a display screen in any of the above-mentioned apparatus embodiments.
The above-described embodiments of the apparatus are merely illustrative, wherein the modules described as separate parts may or may not be physically separate, and the parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a general hardware platform, and may also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware associated with computer program instructions, and that the programs may be stored in a computer readable storage medium, and when executed, may include processes of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Finally, it is noted that the present application may be embodied in many different forms and is not limited to the embodiments described herein, which are not intended as additional limitations to the present disclosure, which are provided for the purpose of providing a more thorough understanding of the present disclosure. In the context of the present application, the above features, combined with one another and in many other variations, which are different from the above-described aspects of the present application, are to be considered as within the scope of the present specification; further, modifications and variations may occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.
Claims (10)
1. A method for adjusting display of a display screen is applied to a terminal device, the terminal device comprises the display screen and a display driving circuit connected with the display screen, and the method comprises the following steps:
acquiring an aging parameter for each pixel in the display area of the display screen;
judging whether an aging pixel exists in the display area of the display screen, wherein the aging pixel is a pixel with an aging parameter exceeding a preset parameter threshold;
acquiring a first brightness parameter for the aged pixel and a second brightness parameter for pixels other than the aged pixel;
and controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter.
2. The method of claim 1, wherein controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter comprises:
calculating a brightness parameter difference value of the second brightness parameter and the first brightness parameter;
determining a compensation value of a pixel voltage for indicating the pixel brightness according to the brightness parameter difference;
and controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the compensation value of the pixel voltage.
3. The method according to claim 2, wherein the determining a compensation value for a pixel voltage indicating the pixel brightness according to the brightness parameter difference value;
acquiring a preset relation table of the brightness parameter change value and the pixel voltage;
searching the pixel voltage corresponding to the brightness parameter difference value in the preset relation table;
and determining the pixel voltage corresponding to the brightness parameter difference value as a compensation value of the pixel voltage.
4. The method according to any one of claims 1 to 3, wherein the controlling the display driving circuit to adjust the brightness of the display area of the display screen comprises:
and controlling the display driving circuit to adjust the brightness of the pixels except the aged pixels so as to adjust the brightness of the display area of the display screen.
5. The method of any one of claims 1 to 3, wherein a plurality of the aged pixels are present in the display area of the display screen, and the obtaining a first brightness parameter for the aged pixels comprises:
acquiring a plurality of brightness parameters corresponding to a plurality of aged pixels;
calculating a brightness parameter average value of the plurality of brightness parameters;
determining the brightness parameter average as the first brightness parameter.
6. The method of any one of claims 1 to 3, wherein the obtaining an aging parameter for each pixel of the display area of the display screen comprises:
after the terminal equipment is initialized, counting the screen lightening time of the display area of the display screen;
judging whether the screen lightening time is greater than a preset time threshold value or not;
and if so, acquiring the aging parameter of each pixel in the display area of the display screen.
7. The method according to any one of claims 1 to 3, wherein before controlling the display driving circuit to adjust the brightness of the display area of the display screen, the method comprises:
detecting whether a brightness adjusting condition is met;
and if the brightness adjusting condition is met, controlling the display driving circuit to adjust the brightness of the display area of the display screen.
8. An apparatus for adjusting a display of a display screen, comprising:
the first acquisition module is used for acquiring the aging parameter of each pixel in the display area of the display screen;
the judging module is used for judging whether an aging pixel exists in the display area of the display screen, wherein the aging pixel is a pixel of which the aging parameter exceeds a preset parameter threshold;
a second obtaining module for obtaining a first luminance parameter for the aged pixel and a second luminance parameter for pixels other than the aged pixel;
and the control module is used for controlling the display driving circuit to adjust the brightness of the display area of the display screen according to the first brightness parameter and the second brightness parameter.
9. A terminal device, comprising:
a display screen;
the display driving circuit is connected with the display screen and used for driving pixels of the display screen;
a controller connected to the display driving circuit, the controller including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 7.
10. A non-transitory computer-readable storage medium storing computer-executable instructions that, when executed by an electronic device, cause the electronic device to perform the method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863864.1A CN114120897A (en) | 2020-08-25 | 2020-08-25 | Method and device for adjusting display of display screen and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010863864.1A CN114120897A (en) | 2020-08-25 | 2020-08-25 | Method and device for adjusting display of display screen and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114120897A true CN114120897A (en) | 2022-03-01 |
Family
ID=80373560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010863864.1A Pending CN114120897A (en) | 2020-08-25 | 2020-08-25 | Method and device for adjusting display of display screen and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114120897A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116049863A (en) * | 2023-03-28 | 2023-05-02 | 东莞锐视光电科技有限公司 | System, method and application for generating stripe light by LCD display screen |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046931A (en) * | 2006-03-27 | 2007-10-03 | 船井电机株式会社 | Display apparatus, burn-in correction system and burn-in correction method |
| JP2009133943A (en) * | 2007-11-29 | 2009-06-18 | Kyocera Corp | Image display |
| US20170092190A1 (en) * | 2015-09-24 | 2017-03-30 | Samsung Display Co., Ltd. | Degradation compensating device and display device having the same |
| CN109147672A (en) * | 2018-08-28 | 2019-01-04 | 武汉天马微电子有限公司 | A kind of compensating control method and display panel, display device of display panel |
| CN110910822A (en) * | 2019-11-27 | 2020-03-24 | 深圳市华星光电半导体显示技术有限公司 | OLED compensation method, compensation device and computer readable storage medium |
| CN111354287A (en) * | 2018-12-20 | 2020-06-30 | 京东方科技集团股份有限公司 | Method, device and equipment for determining aging attenuation degree of pixel and compensating pixel |
| CN111402797A (en) * | 2020-03-30 | 2020-07-10 | 昆山国显光电有限公司 | Brightness uniformity compensation method and device and display equipment |
-
2020
- 2020-08-25 CN CN202010863864.1A patent/CN114120897A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046931A (en) * | 2006-03-27 | 2007-10-03 | 船井电机株式会社 | Display apparatus, burn-in correction system and burn-in correction method |
| JP2009133943A (en) * | 2007-11-29 | 2009-06-18 | Kyocera Corp | Image display |
| US20170092190A1 (en) * | 2015-09-24 | 2017-03-30 | Samsung Display Co., Ltd. | Degradation compensating device and display device having the same |
| CN109147672A (en) * | 2018-08-28 | 2019-01-04 | 武汉天马微电子有限公司 | A kind of compensating control method and display panel, display device of display panel |
| CN111354287A (en) * | 2018-12-20 | 2020-06-30 | 京东方科技集团股份有限公司 | Method, device and equipment for determining aging attenuation degree of pixel and compensating pixel |
| CN110910822A (en) * | 2019-11-27 | 2020-03-24 | 深圳市华星光电半导体显示技术有限公司 | OLED compensation method, compensation device and computer readable storage medium |
| CN111402797A (en) * | 2020-03-30 | 2020-07-10 | 昆山国显光电有限公司 | Brightness uniformity compensation method and device and display equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116049863A (en) * | 2023-03-28 | 2023-05-02 | 东莞锐视光电科技有限公司 | System, method and application for generating stripe light by LCD display screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI707340B (en) | Brightness correction method of display panel and brightness correction device of display panel | |
| US11580891B2 (en) | Color shift compensation method, color shift compensation system and display panel | |
| US7639246B2 (en) | Apparatus and method for displaying a mobile terminal standby screen | |
| US10037726B2 (en) | Detecting method of substandard state and display module and electronic device operating the same | |
| JP2003280590A (en) | Organic el display device | |
| CN105225634A (en) | The drive system of displayer and driving method | |
| US10043438B2 (en) | Display device and method of driving the same with pixel shifting compensation data | |
| CN114093323B (en) | Screen control method and device, electronic equipment and storage medium | |
| CN107945735B (en) | Pixel calling method and device and related medium product | |
| WO2013082940A1 (en) | Oled display control method and device, and terminal device | |
| CN108630162A (en) | Display panel and display device | |
| CN113178160A (en) | Display panel compensation method and device and display device | |
| US20200234667A1 (en) | Gamma voltage divider circuit, voltage adjusting method, and liquid crystal display device | |
| KR101111959B1 (en) | Power-saving type mobile communication terminal having state information display and method thereof | |
| CN109714484B (en) | Data processing method and electronic equipment | |
| US20200192554A1 (en) | Terminal device, display control method implemented by the terminal device, computer readable storage medium and computer program product | |
| CN114120897A (en) | Method and device for adjusting display of display screen and terminal equipment | |
| CN109147674A (en) | AMOLED shows ghost eliminating method, display terminal and storage medium | |
| US9218762B2 (en) | Dimming techniques for emissive displays | |
| CN108196808B (en) | Display device, electronic equipment and screen display control method | |
| WO2006135219A1 (en) | Organic light-emitting display device and driving method thereof | |
| CN110010064B (en) | Pixel driving circuit, display screen and electronic equipment | |
| JP2003108076A (en) | Organic electroluminescence display device and portable telephone set | |
| US20210090500A1 (en) | Driving method of active matrix organic light-emitting diode (amoled) display panel and display device | |
| CN111009567B (en) | Display device, display module and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220301 |