CN106128416B

CN106128416B - Control method, control device and electronic device

Info

Publication number: CN106128416B
Application number: CN201610678009.7A
Authority: CN
Inventors: 曾元清
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2016-08-16
Filing date: 2016-08-16
Publication date: 2020-03-13
Anticipated expiration: 2036-08-16
Also published as: CN106128416A

Abstract

The invention discloses a control method for controlling the brightness of a display screen of an electronic device, wherein the display screen is provided with a pixel array. The control method comprises the following steps: determining adjustment parameters according to the target brightness and the current display screen brightness, wherein the adjustment parameters comprise the number of stages from the current display screen brightness to the target brightness, the brightness change value of each stage of adjustment and the time length of each stage of adjustment; and adjusting the brightness of the pixel according to the adjusting parameter. So, through setting up reasonable accommodation parameter, can make the process of adjustting of the lighteness more steady and level and smooth to the great change in luminance of little every grade change accumulation gradually, thereby realize the purpose of adjusting luminance, the adjustment process passes through luminance transition simultaneously, makes eyes adapt to new luminance gradually, thereby feels comfortable, helps the eyeshield. The invention also discloses a control device and an electronic device.

Description

Control method, control device and electronic device

Technical Field

The present invention relates to display control technologies, and in particular, to a control method, a control device, and an electronic device.

Background

The brightness of the screen of the existing mobile phone is adjusted in one step, which may cause overlarge brightness change and even flicker, and is not beneficial to eye protection.

Disclosure of Invention

Embodiments of the present invention are directed to solving at least one of the technical problems occurring in the prior art. Therefore, the embodiments of the present invention need to provide a control method, a control device and an electronic device.

The invention provides a control method, which is used for controlling the brightness of a display screen of an electronic device, wherein the display screen is provided with a pixel array; the control method comprises the following steps:

determining adjusting parameters according to the target brightness and the current display screen brightness, wherein the adjusting parameters comprise the number of stages from the current display screen brightness to the target brightness, the brightness change value of each stage of adjustment and the time length of each stage of adjustment; and

and adjusting the brightness of the pixel according to the adjusting parameter.

So, through setting up reasonable accommodation parameter, can make the process of adjustting of the lighteness more steady and level and smooth to the great change in luminance of little every grade change accumulation gradually, thereby realize the purpose of adjusting luminance, the adjustment process passes through luminance transition simultaneously, makes eyes adapt to new luminance gradually, thereby feels comfortable, helps the eyeshield. Some problems of the prior art can be solved.

In some embodiments, the electronic device comprises a cell phone or a tablet computer.

In certain embodiments, the control method comprises:

determining the target brightness.

In some embodiments, the control method determines the target brightness based on user input.

In some embodiments, the user input comprises touch input or voice input.

In some embodiments, the control method determines the target brightness based on ambient brightness.

In some embodiments, the electronic device includes a light sensor, and the ambient brightness is obtained by the light sensor.

In some embodiments, the electronic device includes an imaging device for obtaining an image of an environment, the ambient brightness being obtained by calculating a brightness value of the image.

In certain embodiments, the control method comprises:

setting a relational expression between the ambient brightness and the target brightness;

the target brightness is determined by the relational expression.

In some embodiments, the target brightness is equal to the ambient brightness.

In some embodiments, the brightness variation value is fixed, and the determining step comprises:

calculating a difference value between the target brightness and the display screen brightness; and

and determining the number of stages according to the difference value and the brightness change value.

In some embodiments, the number of levels is fixed, and the determining step comprises:

calculating a difference value between the target brightness and the current display screen brightness; and

and determining the brightness change value according to the difference value and the number of stages.

In some embodiments, the duration is fixed.

In certain embodiments, the determining step comprises:

and determining the time length according to the series, wherein the more the series is, the shorter the time length is.

In some embodiments, the adjusting step adjusts the brightness of each of the pixels in a time-sharing manner.

In some embodiments, the display screen is formed with a plurality of pixel groups, each of the pixel groups including a same number of the plurality of pixels; the control method comprises the following steps:

calculating a difference value between the target brightness and the display screen brightness;

determining the brightness value of each level of adjustment of each pixel according to the difference value and the number of levels; and

and the adjusting step sequentially adjusts each pixel of the pixel group one by one according to the number of stages and the brightness value adjusted at each stage.

The invention also provides a control device for controlling the brightness of the display screen of the electronic device, wherein the display screen is provided with a pixel array; the control device includes:

the determining module is used for determining adjusting parameters according to the target brightness and the current display screen brightness, wherein the adjusting parameters comprise the number of stages from the current display screen brightness to the target brightness, the brightness change value of each stage of adjustment and the time length of each stage of adjustment; and

and the adjusting module is used for adjusting the brightness of the pixel according to the adjusting parameter.

In certain embodiments, the control device comprises:

and the brightness determining module is used for determining the target brightness.

In some embodiments, the target brightness is determined from user input.

In some embodiments, the user input comprises touch input or voice input.

In some embodiments, the control means determines the target brightness based on ambient brightness.

In certain embodiments, the control device comprises:

the setting module is used for setting a relational expression between the ambient brightness and the target brightness; the target brightness is determined by the relational expression.

In some embodiments, the target brightness is equal to the ambient brightness.

In some embodiments, the brightness variation value is fixed, and the determining module comprises:

the calculation submodule is used for calculating the difference value between the target brightness and the display screen brightness; and

and the first determining submodule is used for determining the series according to the difference value and the brightness change value.

In certain embodiments, the number of stages is fixed, and the determining module comprises:

the calculation submodule is used for calculating the difference value between the target brightness and the current display screen brightness; and

and the second determining submodule is used for determining the brightness change value according to the difference value and the series.

In some embodiments, the duration is fixed.

In some embodiments, the duration is determined according to the number of levels, the more the number of levels, the shorter the duration.

In some embodiments, the adjusting module adjusts the brightness of each of the pixels in a time-sharing manner.

In some embodiments, the display screen is formed with a plurality of pixel groups, each of the pixel groups including a same number of the plurality of pixels; the control device includes:

the calculating module is used for calculating the difference value between the target brightness and the display screen brightness;

the pixel determining module is used for determining the brightness value of each level of adjustment of each pixel according to the difference value and the number of levels;

and the adjusting module is used for sequentially adjusting each pixel of the pixel group one by one according to the number of stages and the brightness value adjusted at each stage.

The invention also provides an electronic device, which comprises a display screen and the control device in the embodiment.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

The above and/or additional aspects and advantages of embodiments of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic flow chart of a control method according to some embodiments of the present invention.

Fig. 2 is a functional block diagram of an electronic device and a control device according to some embodiments of the present invention.

FIG. 3 is a pictorial diagram of an electronic device in accordance with certain embodiments of the present invention.

Fig. 4 is a flow chart illustrating a control method according to some embodiments of the present invention.

Fig. 5 is a functional block diagram of an electronic device and a control device according to some embodiments of the invention.

FIG. 6 is a flow chart illustrating a control method according to some embodiments of the present invention.

Fig. 7 is a functional block diagram of an electronic device and a control device according to some embodiments of the invention.

Fig. 8 is a flow chart illustrating a control method according to some embodiments of the present invention.

Fig. 9 is a functional block diagram of an electronic device and a control device according to some embodiments of the invention.

FIG. 10 is a flow chart illustrating a control method according to some embodiments of the present invention.

Fig. 11 is a functional block diagram of an electronic device and a control device according to some embodiments of the invention.

FIG. 12 is a flow chart illustrating a control method according to some embodiments of the present invention.

Fig. 13 is a functional block diagram of an electronic device and a control device according to some embodiments of the invention.

Fig. 14 is a schematic diagram of a pixel array according to some embodiments of the invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only and should not be construed as limiting the embodiments of the present invention.

Referring to fig. 1-3 and fig. 14, a control method according to an embodiment of the invention is used for controlling the brightness of a display screen of an electronic device 100, wherein a pixel array 131 is formed on the display screen 130; the control method comprises the following steps:

s1, determining adjusting parameters according to the target brightness and the current display screen brightness, wherein the adjusting parameters comprise the number of stages from the current display screen brightness to the target brightness, the brightness change value of each stage of adjustment and the time length of each stage of adjustment; and

s2, adjusting the brightness of the pixel 1313 according to the adjustment parameter.

In the control device 110 according to the embodiment of the present invention, the control device 110 includes a determination module 111 and an adjustment module 112, which are respectively used to implement S1 and S2. That is, the determining module 111 is configured to determine the adjustment parameters according to the target brightness and the current display screen brightness, where the adjustment parameters include the number of steps from the current display screen brightness to the target brightness, the brightness change value of each step of adjustment, and the time duration of each step of adjustment. The adjusting module 112 is used for adjusting the brightness of the pixel 1313 according to the adjusting parameter.

The control device 110 according to the embodiment of the present invention is applicable to the electronic device 100 according to the embodiment of the present invention.

Referring to fig. 3, in some embodiments, the electronic device 100 includes a mobile phone or a tablet computer. The electronic device 100 may include a light sensor 150 or an imaging device 170 for sensing ambient brightness. The imaging device 170 may be a camera.

In the embodiment of the invention, after the target brightness is determined, the adjusting parameters including the number of stages (N) of adjusting to the target brightness, the brightness change value (△ L) of each stage of adjusting, the time length (△ t) of each stage of adjusting and the like are determined according to the target brightness (L1) and the current display screen brightness (L0).

So, through setting up reasonable accommodation parameter, can make the process of adjustting of the lighteness more steady and level and smooth to the great change in luminance of little every grade change accumulation gradually, thereby realize the purpose of adjusting luminance, the adjustment process passes through luminance transition simultaneously, makes eyes adapt to new luminance gradually, thereby feels comfortable, helps the eyeshield.

In many cases, the brightness change is uniform during brightness adjustment, that is, the brightness change value of each level of adjustment is the same, and the time duration of each level of adjustment is the same. Therefore, the luminance change value of each stage can be obtained by determining only the number of stages, or the number of stages can be obtained by determining only the luminance change value of each stage. The following relationships exist:

L1-L0＝△L*N (1)

T＝△t*N (2)

where T is the total duration of the conditioning process.

Referring to fig. 4-5, in some embodiments, the control method includes:

and S3, determining the target brightness.

S3 may be implemented by the brightness determination module 113 of the control device 110 of some embodiments. I.e. the brightness determination module 113 is used to determine the target brightness.

The target brightness, i.e. the brightness of the display screen to be adjusted, is determined, and the adjustment parameters are determined.

There are various ways to determine the target brightness, for example, in some embodiments, the control method determines the target brightness based on user input. For example, the user inputs a brightness value, or slides a brightness adjustment bar to determine the target brightness, or the system enters a specific contextual mode according to the user input, such as a "highlight mode", and then automatically adjusts the brightness of the display screen according to the preset of the mode.

In some embodiments, the user input includes touch input or voice input. In some situations, it may be inconvenient for the user to perform manual operations, and the voice input function may be considered and may provide the user with convenience.

In some embodiments, the control method determines the target brightness based on the ambient brightness.

Referring to fig. 3, in some embodiments, the electronic device 100 includes a light sensor 150, and the ambient brightness is obtained by the light sensor 150. The light sensor 150 is a widely used device on the electronic device 100 such as a mobile phone, and can be used for sensing the ambient brightness. The light sensor 150 is typically disposed on the same side of the display screen 130.

Referring to fig. 3, in some embodiments, the electronic device 100 includes an imaging device 170, and the imaging device 170 is configured to obtain an image of the environment, and the brightness of the environment is obtained by calculating a brightness value of the image of the environment.

The imaging device 170 may be a camera provided in the electronic device 100, such as a device camera or a rear camera of a mobile phone.

The captured ambient image may be converted into HSL format to obtain the brightness value of each pixel 1313, and the brightness values of all pixels 1313 are added to obtain the average value, which is used as the ambient brightness. The environment image shot by the camera can cover a wider visual field range, so that more objective environment brightness can be obtained.

In addition, because a single image is taken, the brightness of the image may be unrealistic and objective due to unexpected circumstances, such as the finger or other objects inadvertently blocking the camera, or the image may be distorted due to shaking. Therefore, a plurality of frames of images can be shot, and the average brightness value of each frame of image is averaged to be used as the average brightness. Further, the filtering may be performed on a plurality of frames of images, for example, to remove images with too high or too low average brightness values (which may be caused by the above accident), and then to calculate the average brightness by using the remaining images. Thus, more reasonable and objective results can be obtained.

Referring to fig. 6-7, in some embodiments for determining the target brightness according to the ambient brightness, the control method includes:

s4, setting a relational expression between the ambient brightness and the target brightness; the target brightness is determined by the relational expression.

S4 may be implemented by the setup module 114 of the control device 110 of some embodiments. The setting module 114 is used for setting a relation between the ambient brightness and the target brightness; the target brightness is determined by the relational expression. The ambient brightness may be measured by the light sensor 150 or the imaging device 170.

Generally speaking, the target brightness and the ambient brightness should be in a positive correlation relationship, that is, the brighter the sensed ambient brightness is, the brighter the target brightness should be adjusted correspondingly, and the darker the ambient brightness is, the darker the target brightness should be adjusted correspondingly. In some embodiments, the target brightness may be equal to the ambient brightness. Alternatively, a relationship between the ambient brightness and the target brightness may be set, for example, the target brightness is the ambient brightness multiplied by a preset coefficient, or the target brightness is the ambient brightness added by a preset value, or there is a more complicated relationship.

Through the setting of relational expression, more reasonable relation between target brightness and ambient brightness can be obtained to obtain more suitable target brightness according to ambient brightness, with promotion user physical stamina.

Referring to fig. 8-9, in some embodiments, the luminance variation value is fixed, and the determining step includes:

s101, calculating a difference value between target brightness and display screen brightness; and

and S102, determining the number of stages according to the difference value and the brightness change value.

In some embodiments, the determination module 111 of the control device 110 includes a calculation sub-module 1111 and a first determination sub-module 1112, which may be used to implement S101 and S102, respectively. I.e. the calculation sub-module 1111 is configured to calculate a difference between the target brightness and the display screen brightness. The first determining sub-module 1112 is configured to determine a number of stages according to the difference value and the brightness variation value.

According to the relation (1), when the difference value and the luminance change value (i.e., the luminance change value adjusted per step) are determined, i.e., L1-L0 and △ L are determined, the number of steps is calculated, for example, the difference value is 50 and the luminance change value is 2, and accordingly, the number of steps is determined to be 50/2-25.

In some cases, the brightness variation value is fixed to a relatively small value in order to make the brightness variation of the display screen 130 appear smooth to human eyes without flickering. The number of stages is not fixed and depends on the difference to be adjusted. The larger the difference, the larger the number of stages and vice versa. Therefore, the brightness change of the display screen 130 is smooth, and the human eyes can look comfortable, thereby being beneficial to protecting the eyes.

In some embodiments, the duration of each stage of adjustment may be fixed. If the difference is fixed, the rate of change in luminance (the amplitude of change in luminance per unit time) viewed by the human eye is fixed regardless of the difference, and the human eye feels comfortable.

The time length of each stage of adjustment may not be fixed, for example, when the number of stages is too large, the time length of each stage of adjustment is automatically adjusted to be short, so that the total time length is not too long, and the user is prevented from waiting too long when adjusting the brightness of the display screen. For example, an upper limit of the total duration may be set, if the number of stages is too large, the total duration is set as the upper limit of the total duration, and the duration of each stage of adjustment is calculated according to the total duration and the number of stages.

In some embodiments, the duration is determined by a number of stages, the more stages, the shorter the duration.

Referring to fig. 10-11, in some embodiments, the fixed number of stages, S1 includes:

s101, calculating a difference value between the target brightness and the current display screen brightness; and

and S103, determining a brightness change value according to the difference value and the number of stages.

S101 and S103 may be implemented by the calculation sub-module 1111 and the second determination sub-module 1113 of the control device 110 according to some embodiments, respectively. I.e. the calculation sub-module 1111 is configured to calculate a difference between the target brightness and the current display screen brightness. The second determining sub-module 1113 is configured to determine a brightness variation value according to the difference and the number of stages.

According to the relation (1), when the difference and the number of steps are determined, that is, L1 to L0 and N are determined, a luminance change value (i.e., a luminance change value for each step of adjustment) △ L is calculated, and for example, when the difference is 50 and the number of steps is 10, it is determined that the luminance change value is 50/10 — 5.

In some embodiments, the number of stages and the length of time for each stage of adjustment are fixed in order to allow the user to adjust the brightness without waiting too long. For example, when entering a bright environment from a dark environment, the brightness of the display screen needs to be adjusted to a brighter value. For example, when the luminance value is adjusted from 100 to 160 and the number of stages is fixed to 10, the luminance change of each stage is 6; if the number of steps is still 10 when the luminance value is adjusted from 100 to 200, the luminance change of each step is 10. If the time length of each stage of adjustment is 0.2 seconds, the total time length is 0.2 × 10 to 2 seconds regardless of the difference in the adjustment.

Or in some embodiments, the duration of each adjustment is not fixed, but rather is related, e.g., positively correlated, to the value of the change in brightness for each adjustment. The larger the value of the change in brightness, the longer the period of time for each adjustment stage, so that the rate of change in brightness in the human eye as a whole can be rendered relatively stable or fixed, thereby avoiding discomfort to the human eye.

Referring to fig. 12-14, in some embodiments, S2 adjusts the brightness of each pixel 1313 in a time-shared manner. That is, the adjusting module 112 of the control device 110 of some embodiments adjusts the brightness of each pixel 1313 in a grouped time-sharing manner.

For example, in some embodiments, the display screen 130 is formed with a plurality of pixel groups 1311, each pixel group 1311 including the same number of the plurality of pixels 1313; the control method comprises the following steps:

s5, calculating the difference between the target brightness and the display screen brightness;

s6, determining the brightness value of each pixel 1313 adjusted by each level according to the difference and the number of levels;

s2 sequentially adjusts each pixel 1313 of the pixel group 1311 one by one according to the number of stages and the luminance value adjusted for each stage.

S5, S6, S2 may be implemented by the calculation module 115, the pixel 1313 determination module 116, and the adjustment module 112, respectively, of the control device 110 of some embodiments. That is, the calculation module 115 is used to calculate the difference between the target brightness and the display screen brightness. The pixel 1313 determining module 116 is configured to determine the adjusted brightness value of each level of each pixel 1313 according to the difference and the number of levels. The adjusting module 112 is used for sequentially adjusting each pixel 1313 of the pixel set 1311 one by one according to the number of stages and the adjusted brightness value of each stage.

When the brightness is adjusted, if the adjustment range of each pixel 1313 is different, for example, the adjustment is performed according to a certain ratio or algorithm, the brightness value 5 is adjusted to 10, the brightness value 8 is adjusted to 16, and the adjustment multiple is 2 times. At this time, the brightness change value of each level of adjustment may be determined according to the difference between the target brightness and the display screen brightness and the number of levels. However, the luminance variation value is the overall luminance variation value of each pixel 1313 of the integrated display panel 130. And then calculates a variation value of each level adjustment of each pixel 1313 based on the luminance variation value. The brightness of each pixel 1313 is adjusted in a time-sharing manner in groups according to a preset adjustment manner. Thus, the change of the brightness can be more moderate, and the uncomfortable feeling of the eyes can be avoided.

Referring to fig. 14, it should be noted that the number of stages refers to the number of stages when all pixels 1313 are adjusted once (i.e., one cycle) to one stage. Each pixel group 1311 includes, for example, two pixels 1313, an a pixel and a B pixel. In one cycle, the a pixels of all the pixel groups 1311 are adjusted first, and the B pixels of all the pixel groups 1311 are adjusted, and after completion, the cycle ends, or one-stage adjustment is completed.

The luminance change value is calculated, i.e., the change value of each level of adjustment of each pixel 1313 is calculated based on the luminance change value. The individual pixels 1313 of each pixel group 1311 are then individually adjusted in brightness in a preset adjustment sequence, such as a pixels > B pixels > a pixels.

However, the number of pixels in the pixel group according to the embodiment of the present invention is not limited to 2, and may be 3 or more than 3.

When brightness adjustment is performed, if the adjustment range of each pixel 1313 is the same, for example, a fixed value is adjusted at the same time, such as the brightness value 5 is adjusted to 6, and 8 is adjusted to 9, each adjustment is performed by one minimum brightness unit 1. At this time, if the adjustment is performed in a grouped and time-sharing manner, for example, each pixel group 1311 includes two pixels a and B, the adjustment in a time-sharing manner is performed by first turning on the a pixels of all the pixel 1313 levels by one unit, and then turning on the B pixels of all the pixel 1313 levels by one unit. At each adjustment, half of the pixels 1313 are adjusted up by 1, while the other half are unchanged, corresponding to an overall brightness change value of 0.5.

And if the grouping time division mode is not adopted, the brightness change value of each adjustment is at least 1. Therefore, the brightness change can be more moderate by adopting a grouping and time-sharing adjusting mode, and uncomfortable feeling of human eyes is avoided.

In some embodiments employing a grouping and time-sharing approach, the electronic device 100 includes an array of point light sources (not shown) corresponding to the display 130; each pixel 1313 corresponds to one or more point light sources. That is, by adjusting the brightness of the point light source, the display brightness of its corresponding pixel 1313 can be adjusted. In S2, the brightness of each point light source is adjusted in a grouped time-sharing manner to adjust the brightness of each pixel 1313.

For example, in some embodiments, the display screen 130 may be an OLED display screen 130. The OLED (organic light-Emitting Diode) has a self-luminous property, so that the OLED display 130 can realize a point light source array, and the brightness of the pixel 1313 is adjusted by controlling the brightness of each point light source. In addition, the OLED display 130 has the advantages of thin thickness, good shock resistance, wide viewing angle, fast response, high light emitting efficiency, flexibility, and the like.

The brightness of the pixel 1313 is adjusted by controlling the brightness of the point light source corresponding to the pixel 1313, which is more direct to control and fast to respond. By adjusting the brightness of the point light source, the brightness adjusting mode of grouping and time sharing can be realized, and the eye protection effect is achieved.

The electronic device 100 according to an embodiment of the present invention may include the display 130 and the control device 110 according to the above embodiment. The control device 110 can be integrated with the electronic device 100 to enrich the functions of the electronic device 100.

In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processor, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A control method is used for controlling the brightness of a display screen of an electronic device, and is characterized in that the display screen is an OLED display screen, a pixel array is formed on the display screen, the pixel array comprises a plurality of pixel groups, each pixel group comprises the same number of pixels, each pixel group comprises a first pixel and a second pixel, and the pixel array comprises a plurality of the first pixels and a plurality of the second pixels; the control method comprises the following steps:

and adjusting the brightness of the plurality of first pixels according to the adjusting parameters, adjusting the brightness of the plurality of second pixels after the brightness of the first pixels is adjusted, wherein the brightness change value of each level of adjustment is equal.

2. The control method according to claim 1, wherein the electronic device comprises a mobile phone or a tablet computer.

3. The control method according to claim 1, characterized by comprising:

determining the target brightness.

4. The control method of claim 3, wherein the control method determines the target brightness based on user input.

5. The control method of claim 4, wherein the user input comprises a touch input or a voice input.

6. The control method according to claim 1, wherein the control method determines the target brightness based on an ambient brightness.

7. The control method according to claim 6, wherein the electronic device includes a light sensor, and the ambient brightness is obtained by the light sensor.

8. The control method according to claim 6, wherein the electronic device includes an imaging device for obtaining an image of an environment, the environment brightness being obtained by calculating a brightness value of the image.

9. The control method according to claim 6, characterized by comprising:

the target brightness is determined by the relational expression.

10. The control method according to claim 6, wherein the target brightness is equal to the ambient brightness.

11. The control method according to claim 1, wherein the luminance change value is fixed, and the determining step includes:

12. The control method of claim 1, wherein the number of stages is fixed, and the determining step comprises:

13. A control method according to claim 11 or 12, characterized in that said duration is fixed.

14. The control method according to claim 11 or 12, wherein the determining step includes:

15. The control method according to claim 1, characterized by comprising:

16. A control device for controlling the brightness of a display screen of an electronic device, wherein the display screen is an OLED display screen, the display screen is formed with a pixel array, the pixel array comprises a plurality of pixel groups, each pixel group comprises the same number of pixels, each pixel group comprises a first pixel and a second pixel, and the pixel array comprises a plurality of the first pixels and a plurality of the second pixels; the control device includes:

and the adjusting module is used for adjusting the brightness of the plurality of first pixels according to the adjusting parameters, adjusting the brightness of the plurality of second pixels after the brightness of the first pixels is adjusted, and enabling the brightness change value of each level of adjustment to be equal.

17. The control device of claim 16, wherein the electronic device comprises a cell phone or a tablet computer.

18. The control device according to claim 16, characterized in that the control device comprises:

19. The control device of claim 18, wherein the target brightness is determined based on user input.

20. The control device of claim 19, wherein the user input comprises a touch input or a voice input.

21. The control apparatus of claim 16, wherein the control apparatus determines the target brightness based on ambient brightness.

22. The control device of claim 21, wherein the electronic device includes a light sensor, and the ambient brightness is obtained by the light sensor.

23. The control device according to claim 21, wherein the electronic device includes an imaging device for obtaining an image of an environment, the environment brightness being obtained by calculating a brightness value of the image.

24. The control device according to claim 21, characterized in that the control device comprises:

25. The control apparatus of claim 21, wherein the target brightness is equal to the ambient brightness.

26. The control apparatus of claim 16, wherein the brightness variation value is fixed, and the determining module comprises:

27. The control apparatus of claim 16, wherein the number of stages is fixed, and wherein the determining module comprises:

28. A control device according to claim 26 or 27, wherein said time period is fixed.

29. The control apparatus according to claim 26 or 27, wherein the time period is determined according to the number of stages, the more the number of stages, the shorter the time period.

30. The control device according to claim 16, characterized in that the control device comprises:

31. An electronic device comprising a display and a control device as claimed in any one of claims 16 to 27 or claim 30.