CN106935191B

CN106935191B - Display control method and electronic equipment

Info

Publication number: CN106935191B
Application number: CN201710210469.1A
Authority: CN
Inventors: 彭少朋; 林楠
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2017-03-31
Filing date: 2017-03-31
Publication date: 2021-10-22
Anticipated expiration: 2037-03-31
Also published as: CN106935191A

Abstract

The invention provides a display control method and electronic equipment, wherein the electronic equipment comprises an OLED display screen. Therefore, the phenomenon that residual images appear on the OLED display screen due to different display frequencies of the pixels is fundamentally avoided, namely, the display control method provided by the scheme delays the aging speed of the target area by enabling the target area to display the compensation image.

Description

Display control method and electronic equipment

Technical Field

The invention belongs to the technical field of OLED display, and particularly relates to a display control method and electronic equipment.

Background

An Organic Light Emitting Diode (OLED) Display has the characteristics of self-luminescence, high brightness, wide viewing angle, high contrast, flexibility and low energy consumption, and is widely used in mobile phones, computers and televisions at present.

However, the current OLED display has some drawbacks: with the increase of the service time, the OLED display screen can be aged, and then the afterimage phenomenon is generated, so that the user experience is poor. Therefore, it is an urgent need to solve the problem for those skilled in the art to reduce the occurrence of the image sticking phenomenon of the OLED display.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a display control method and an electronic device, so as to reduce the occurrence of the image sticking phenomenon of an OLED display screen in the electronic device and improve the display effect of an image.

In order to achieve the purpose, the invention provides the following technical scheme:

a display control method is applied to an electronic device, the electronic device comprises an OLED display screen, and the method comprises the following steps:

determining a target area of the OLED display screen;

controlling the target area to display a compensation image based on the target area,

wherein the compensated image is displayed through the target area to slow the rate of aging of the target area.

Preferably, the determining the target area of the OLED display screen includes:

obtaining a display interface of the OLED display screen;

obtaining RGB component values of each pixel in the display interface;

determining the position corresponding to the pixel meeting the preset condition on the OLED display screen as a target area based on the RGB component value of each pixel;

the controlling the target area to display a compensation image based on the target area comprises:

producing a compensation pixel based on RGB component values of the pixel satisfying the predetermined condition,

wherein the RGB component values of the compensation pixel are complementary to the RGB component values of the pixel satisfying the predetermined condition.

obtaining indication instructions for indicating the target area;

determining a target area of the OLED display screen based on the indication instruction;

obtaining a display image of a target area of the OLED display screen;

obtaining RGB component values for each pixel on the display image;

producing a compensated image based on the RGB component values of each pixel,

wherein each pixel in the compensation image corresponds to each pixel in the display image one-to-one and the RGB component values of each pixel in the compensation image are complementary to the RGB component values of the corresponding pixel in the display image.

Preferably, the controlling the target area to display a compensation image based on the target area further includes:

controlling the display on the OLED display screen based on the compensation pixel replacing the pixel meeting the predetermined condition;

or the like, or, alternatively,

and replacing the display image based on the compensation image to control the display on the OLED display screen.

obtaining a switching instruction, wherein the switching instruction is used for indicating the electronic equipment to be switched to a low-power-consumption working state;

in response to the switching instruction, replacing the pixel control meeting the predetermined condition based on the compensation pixel to be displayed on the OLED display screen;

or the like, or, alternatively,

and responding to the switching instruction, and replacing the display image based on the compensation image to control the display on the OLED display screen.

An electronic device, comprising:

a memory for storing a program;

a processor for executing the program, the program for:

determining a target area of the OLED display screen;

wherein the compensated image is displayed through the target area to slow the rate of aging of the target area;

a communication bus for the memory to communicate with the processor.

Preferably, when determining the target area of the OLED display screen, the processor is specifically configured to:

obtaining a display interface of the OLED display screen;

obtaining RGB component values of each pixel in the display interface;

the processor, when controlling the target area to display a compensated image based on the target area, is further configured to:

obtaining indication instructions for indicating the target area;

obtaining a display image of a target area of the OLED display screen;

obtaining RGB component values for each pixel on the display image;

producing a compensated image based on the RGB component values of each pixel,

Preferably, the processor, when controlling the target area to display the compensation image based on the target area, is further configured to:

or the like, or, alternatively,

Therefore, the beneficial effects of the invention are as follows:

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic flowchart of a display control method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a prior art display screen with afterimages;

FIG. 3 is a flowchart of a method for determining a target area of an OLED display screen according to this embodiment;

fig. 4 is a schematic structural diagram of a determined target pixel on a display screen according to this embodiment;

FIG. 5 is a schematic structural diagram of a compensation pixel for display on a display panel according to this embodiment;

FIG. 6 is a schematic diagram of another exemplary display panel with compensation pixels;

FIG. 7 is a flowchart illustrating a method for determining a target area of an OLED display screen according to an embodiment of the present invention;

fig. 8 is a hardware structure diagram of an electronic device according to this embodiment.

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention provides a display control method and electronic equipment, wherein the electronic equipment comprises an OLED display screen, and the method is based on the electronic equipment, firstly, a target area on the OLED display screen is determined, and then, the target area is controlled to display a compensation image, so that the display frequency of each pixel in the target area is relatively uniform, and therefore, the phenomenon of ghost shadow on the OLED display screen caused by different display frequencies of the pixels is fundamentally avoided, namely, the display control method provided by the scheme delays the aging speed of the target area by enabling the target area to display the compensation image.

Referring to fig. 1, fig. 1 is a schematic flow chart of a display control method according to an embodiment of the present invention, where the method is applied to an electronic device, where the electronic device needs to include an OLED display screen, and specifically, the method includes the steps of:

s1, determining a target area of the OLED display screen;

and S2, controlling the target area to display a compensation image based on the target area, wherein the compensation image is displayed through the target area to delay the aging speed of the target area.

In the process of developing the technical solution, the inventor finds that, in the existing electronic device, for the purpose of protecting the mechanical keys, the virtual keys are usually arranged on the display screen, so that the number of times of using the mechanical keys can be reduced. However, the virtual keys are usually presented in the form of background color plus icons, such as black background plus white icons, and of course, the existing virtual keys are not limited to the above-mentioned arrangement of black and white, and may also be other color combinations, such as gray background plus white icons, and in short, the background color of the virtual keys and the color of the key icons are definitely different.

Moreover, the virtual keys are usually arranged at fixed positions on the display screen, so that the problem of image sticking on the display screen is caused due to different aging degrees of the OLEDs of the pixels, as shown in fig. 2. For example, if a virtual key is set at position 1 of the display screen for a long time, and then the position of the virtual key is adjusted to other positions of the display screen, for example, at position 2, a ghost of the virtual key may also appear on the display screen at the original position 1, resulting in poor user experience.

In order to solve the problem of the display screen having the afterimage in the prior art, an embodiment of the present invention provides the display control method, where a target area on the OLED display screen is first determined, where the target area is an area on the display screen having the afterimage, and certainly, the target area is not limited to this, and may also be an area designated by a user based on the OLED display screen.

After the electronic device acquires the target area, the present embodiment controls the target area to display the compensation image, wherein the RGB component values of each pixel in the compensation image are compensated with the RGB component values of each pixel in the target area, for example, the compensation image is an inverse color image of the target area display image, so that the display frequencies of each pixel in the target area tend to be consistent, and therefore, the phenomenon of image sticking on the OLED display screen due to different display frequencies of the pixels is fundamentally avoided, that is, the display control method provided by the present embodiment delays the aging speed of the target area by causing the target area to display the compensation image.

Specifically, on the basis of the above embodiments, this embodiment further provides various specific implementation manners for determining the target area of the OLED display screen, as follows:

in a first mode

Determining an area where the afterimage appears on the OLED display screen as a target area, specifically, as shown in fig. 3, the method includes the steps of:

and S31, obtaining a display interface of the OLED display screen.

Generally, the OLED display screen displays different contents according to different energization currents of pixels on the display screen, for example, each pixel of the display screen is controlled to display black, and then the display screen is in a conventional black screen state, and for example, the pixels are controlled to display different colors, and a certain display content of the display screen is realized in combination.

In this embodiment, the obtaining of the display interface of the OLED display screen may be obtaining of a display interface currently displayed by the display screen, obtaining of a combined interface of a plurality of display interfaces of the display screen within a preset time period, or obtaining of a display interface of the display screen at a certain preset time.

And S32, obtaining the RGB component values of each pixel in the display interface.

After the display interface of the display screen is determined, the RGB component values of each pixel in the display interface are respectively obtained, specifically, each pixel has one RGB component value, and the pixel presents different colors according to the difference of the RGB component values. That is, one pixel has three sub-pixels, which are respectively red (R), green (G) and blue (B), each color has an intensity value between 0 and 255, different colors are formed according to the combination of the three sub-pixel intensity values, for example, when the intensity values of red, green and blue are 255, the pixel appears white, for example, when the intensity values of red, green and blue are 0, the pixel appears black, for example, when the intensity values of red, green and blue are 199, 237 and 204, the pixel appears green bean sand.

S33, based on the RGB component values of each pixel, determining the position corresponding to the pixel meeting the preset condition on the OLED display screen as a target area.

In step S32, the electronic device has already obtained the RGB component values of each pixel in the display interface, and this step determines the pixels satisfying the predetermined condition in the RGB component values, and then determines the positions of the pixels satisfying the condition on the display screen as the target area. Specifically, the preset condition may be set by a user, or may be a preset condition, for example, the preset condition may be that a pixel, in which the intensity values of the three colors in the RBG component values are all higher than the first intensity value, is determined as a target pixel, and then a position on the display screen including the target pixel is a target area. At this time, the target pixel may be a plurality of discrete pixel points, and certainly, the method is not limited to this, and for example, the target pixel may also be set at a position including a first preset number of discrete pixel points as the target area, instead of determining the target area by a single pixel point.

Referring to fig. 4, a specific example is explained, assuming that the electronic device is a mobile phone, first, a current display interface of a display screen of the mobile phone is obtained. Next, the RGB component values of each pixel on the display screen of the mobile phone are obtained, assuming that the display screen is composed of a pixel array having three pixels per row and four columns of pixels (this is only for example, the number of pixels contained in the pixel array is far more than this according to the difference of the resolution of the display screen). Specifically, it is assumed that the RGB component values of the display screen are shown in table one:

watch 1

(205、102、133)	(255、102、255)	(255、236、254)
			(0、100、136)	(123、142、156)	(205、102、133)
(234、185、147)	(245、135、159)	(234、245、234)
			(6、18、145)	(231、236、245)	(214、89、95)

In this embodiment, after the RGB component values of the 12 pixels are obtained, the pixels with the intensity values of all three colors greater than 230 in the RGB component values are selected as the target pixels, and it is easy to find from the table that in this embodiment, the target pixels correspond to the

positions

1, 2, and 3 in fig. 4, and then, it can be determined that the three positions of the three target pixels are three target areas.

It should be noted that, in the prior art, the resolution of the screen is higher, that is, one screen has a plurality of pixels, and therefore, preferably, the present embodiment may determine a small area where some discrete target pixels are located as the target area.

Accordingly, after the target area is determined, the embodiment further provides a specific implementation step of controlling the target area to display the compensation image based on the target area, as follows:

s34, producing a compensation pixel based on the RGB component values of the pixel satisfying the predetermined condition,

In the above-described embodiment, the RGB component values of the object area and the pixels in the object area have been determined, and at this time, the complementary RGB component values of the pixels in the object area are calculated, and then the complementary RGB component values are determined as the compensation pixels. Specifically, referring to fig. 4, the target areas are position 1, position 2, and position 3. Then only the complementary RGB component values of the pixels corresponding to position 1, position 2 and position 3 need to be calculated at this time, as shown in table two:

watch two

(205、102、133)	(255、102、255)	(0、19、1)
			(0、100、136)	(123、142、156)	(205、102、133)
(234、185、147)	(245、135、159)	(11、10、21)
			(6、18、145)	(24、19、10)	(214、89、95)

It can be seen that the above steps can generate compensation pixels, and on the basis of the above steps, this embodiment further provides a specific method for controlling the target area to display a compensation image based on the target area, that is, replacing the pixels meeting the predetermined condition based on the compensation pixels is controlled to be displayed on the OLED display screen.

That is, the pixels at the target regions (position 1, position 2, and position 3) determined in fig. 4 are shown as compensation pixels, and the pixels at other positions are still displayed as original pixels as shown in fig. 5. Therefore, the display frequency of the pixels in the target area tends to be consistent, and the problem that the display screen has residual shadows due to the aging of the OLED in the target area is solved.

In addition, the inventor considers that if only the compensation pixels are displayed in the target area, when the display screen is used for a long time, the display brightness in the target area may be weaker than that in other non-target areas, and therefore, this embodiment may display the compensation pixels on the entire display interface of the display screen, as shown in fig. 6, the determination method of the compensation pixels is the same as that in the above embodiment, and the description is not repeated here.

Based on the above scheme of performing compensation pixel display on the whole screen, this embodiment further provides a preferred implementation manner, for example, when the display screen of the electronic device is in a non-display screen normal display state such as standby, charging, and the like, full-screen pixel compensation is performed. Specifically, the method comprises the following steps:

and S35, obtaining a switching instruction, wherein the switching instruction is used for indicating the electronic equipment to be switched to a low-power-consumption working state.

In this embodiment, the electronic device first obtains a switching instruction, where the switching instruction may be an instruction for instructing the electronic device to switch to the low-power-consumption operating state, for example, a standby instruction, and the standby instruction may be triggered in various ways, such as a user manually pressing a "power" key, and if the user clicks a virtual switching key on a display interface based on a display screen, or the electronic device may automatically switch to the low-power-consumption operating state after the screen is in a certain display interface for a preset time, and so on.

S36, in response to the switching instruction, replacing the pixel meeting the predetermined condition based on the compensation pixel to control to be displayed on the OLED display screen.

After the electronic device obtains the switching instruction, the display screen is controlled to enter the pixel compensation state in response to the switching instruction, and compensation of each pixel on the display screen is realized by replacing the compensation pixel with the target pixel, and a specific method for determining the compensation pixel refers to the above embodiment.

In summary, the display control method provided in this embodiment may only compensate for the pixels in the target area, and may also compensate for the pixels in the entire display screen, but in any way, the display frequency of each pixel on the display screen is relatively uniform by displaying the compensation pixels, so that the phenomenon of the afterimage on the OLED display screen caused by the different display frequencies of the pixels is fundamentally avoided.

Mode two

Determining a designated area on the OLED display screen as a target area, where the designated area may be an area defined by a user based on the display screen, or a designated location determined by the electronic device based on a certain definition rule, and specifically, as shown in fig. 7, the method includes the steps of:

and S41, obtaining an indication instruction for indicating the target area.

The indication instruction corresponds to the target area and may be an indication instruction triggered by a user, for example, the user triggers a screen saver, then manually draws a certain area by himself, determines the area as the target area, and the indication instruction indicating the area is an indication instruction of the target area.

Of course, the indication instruction may also be a certain indication instruction triggered after the electronic device starts a certain program and the detection screen meets a preset condition, for example, when the user starts a screen detection function of the electronic device, the screen may be displayed as a solid background, and then the electronic device automatically detects whether there is a highlight on the solid background, and records the position information of the highlight as an indication instruction for indicating the target area.

Besides, the instruction can also be an instruction for automatically acquiring parameters of each pixel in the screen for the electronic equipment and representing the target pixel calculated according to a preset algorithm. The method for determining the target pixel can be seen in the above embodiments.

And S42, determining a target area of the OLED display screen based on the indication instruction.

After the instruction is obtained, the electronic device determines a target area on the OLED display screen based on the instruction, specifically, step S41 provides multiple instruction obtaining methods, and the method for determining the target area is different for different instruction obtaining methods, for example, if a user manually draws a certain area, the area is the target area. When the indication instruction is a certain indication instruction triggered after the electronic device detection screen meets the preset condition, the indication instruction may represent the position of the target pixel on the display screen, and then the target area may be determined according to the position.

and S43, obtaining a display image of the target area of the OLED display screen.

S44, obtaining RGB component values of each pixel on the display image.

S45, producing a compensation image based on the RGB component values of each pixel, wherein each pixel in the compensation image corresponds to each pixel in the display image in a one-to-one mode, and the RGB component values of each pixel in the compensation image are complementary to the RGB component values of the corresponding pixels in the display image.

For the determination of the display image, the RGB components of the pixels, and the compensation image, please refer to method one.

On the basis of the above steps, the present embodiment further provides a specific method for controlling the target area to display a compensation image based on the target area, that is, the compensation image is replaced with the display image to control the display on the OLED display screen.

s46, obtaining a switching instruction, wherein the switching instruction is used for indicating the electronic equipment to be switched to a low-power-consumption working state;

and S47, responding to the switching instruction, and replacing the display image based on the compensation image to control the display on the OLED display screen.

Similarly, steps S46 and S47 refer to steps S35 and S36, and the description thereof is not repeated here.

An embodiment of the present invention further provides an electronic device corresponding to the display control method, and details of steps executed by a processor in the electronic device may refer to descriptions of corresponding steps in the display control method, which are not specifically limited herein, as shown in fig. 8, which is a schematic structural diagram of an electronic device provided in an embodiment of the present invention, and the electronic device includes:

a memory 81 for storing a program;

the memory 81 may comprise a high-speed RAM memory, and may further comprise a non-volatile memory (non-volatile memory), such as at least one disk memory.

A processor 82 for executing the program for:

determining a target area of the OLED display screen;

a communication bus 83 for the memory 81 to communicate with the processor 82.

The processor 82 may be a central processing unit CPU, or an application Specific Integrated circuit ASIC, or one or more Integrated circuits configured to implement embodiments of the present invention.

Optionally, when determining the target area of the OLED display screen, the processor is specifically configured to:

obtaining a display interface of the OLED display screen;

obtaining RGB component values of each pixel in the display interface;

obtaining indication instructions for indicating the target area;

obtaining a display image of a target area of the OLED display screen;

obtaining RGB component values for each pixel on the display image;

producing a compensated image based on the RGB component values of each pixel,

Optionally, when the processor controls the target area to display a compensation image based on the target area, the processor is further configured to:

or the like, or, alternatively,

In summary, the present invention provides a display control method and an electronic device, where the electronic device includes an OLED display screen, and the method first determines a target area on the OLED display screen based on the electronic device, and then controls the target area to display a compensation image. Therefore, the phenomenon that residual images appear on the OLED display screen due to different display frequencies of the pixels is fundamentally avoided, namely, the display control method provided by the scheme delays the aging speed of the target area by enabling the target area to display the compensation image.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display control method is applied to an electronic device, the electronic device comprises an OLED display screen, and the method is characterized by comprising the following steps:

determining a target area of the OLED display screen;

wherein the RGB component values of each pixel in the compensation image are complementary to the RGB component values of each pixel in the object region, and the compensation image is displayed through the object region such that the display frequency of each of the pixels is uniform.

2. The method according to claim 1, wherein the determining the target area of the OLED display screen comprises:

obtaining a display interface of the OLED display screen;

obtaining RGB component values of each pixel in the display interface;

3. The method according to claim 1, wherein the determining the target area of the OLED display screen comprises:

obtaining indication instructions for indicating the target area;

obtaining a display image of a target area of the OLED display screen;

obtaining RGB component values for each pixel on the display image;

producing a compensated image based on the RGB component values of each pixel,

4. The display control method according to claim 2 or 3, wherein the controlling the target area to display a compensation image based on the target area further comprises:

controlling the display on the OLED display screen based on the pixels which meet the predetermined condition and are replaced by the compensation pixels;

or the like, or, alternatively,

and replacing display image control to display on the OLED display screen based on the compensation image.

5. The display control method according to claim 4, wherein the controlling the target area to display a compensation image based on the target area further comprises:

or the like, or, alternatively,

6. An electronic device, comprising:

a memory for storing a program;

a processor for executing the program, the program for:

determining a target area of the OLED display screen;

wherein the RGB component values of each pixel in the compensation image are complementary to the RGB component values of each pixel in the object region, the compensation image being displayed through the object region such that the display frequency of each of the pixels is uniform;

a communication bus for the memory to communicate with the processor.

7. The electronic device of claim 6, wherein the processor, when determining the target area of the OLED display screen, is specifically configured to:

obtaining a display interface of the OLED display screen;

obtaining RGB component values of each pixel in the display interface;

8. The electronic device of claim 6, wherein the processor, when determining the target area of the OLED display screen, is specifically configured to:

obtaining indication instructions for indicating the target area;

obtaining a display image of a target area of the OLED display screen;

obtaining RGB component values for each pixel on the display image;

producing a compensated image based on the RGB component values of each pixel,

9. The electronic device of claim 7 or 8, wherein the processor, when controlling the target area to display a compensated image based on the target area, is further configured to:

or the like, or, alternatively,

10. The electronic device of claim 9, wherein the processor, when controlling the target area to display a compensated image based on the target area, is further configured to:

or the like, or, alternatively,