WO2013082940A1

WO2013082940A1 - Oled display control method and device, and terminal device

Info

Publication number: WO2013082940A1
Application number: PCT/CN2012/078277
Authority: WO
Inventors: 朱斌; 王婷; 吴钢
Original assignee: 华为终端有限公司
Priority date: 2011-12-09
Filing date: 2012-07-06
Publication date: 2013-06-13
Also published as: CN102419955A; CN102419955B

Abstract

An OLED display control method and device, and a terminal device. By way of acquiring the electricity quantity of a terminal device where an OLED is located (101), and determining a grayscale value of a pixel of a GUI control based image corresponding to the electricity quantity according to the correlation between the electricity quantity and the grayscale value of the pixel of the GUI control based image (102), the grayscale value of the pixel of the GUI control based image in the terminal device can be adjusted according to the determined grayscale value, for the OLED to perform pixel display according to the grayscale value of the pixel (103), which can effectively reduce the electricity quantity consumption of the terminal device where the OLED is located.

Description

Display control method and device for OLED, terminal device The application is submitted to the Chinese Patent Office on December 09, 2011, and the application number is 201110408158. 9. The Chinese patent with the invention name "0LED display control method and equipment, terminal equipment" Priority of the application, the entire contents of which are incorporated herein by reference. Technical field

The present invention relates to display control technology, and in particular to a display control method, device and terminal device for an organic light-emitting display (Organic Light-Emective OLED). Background of the invention

Organic Light-Emi t t ing Di splay (OLED) is widely used in terminal devices in the display field, such as mobile phones, televisions and navigators. In the prior art, the power consumption of the terminal device where the 0 LED is located can be reduced by controlling the current of the 0 LED.

However, by controlling the current of the 0LED, reducing the power consumption of the terminal device where the 0LED is located may cause the visual effect of the image displayed by the 0LED to be deteriorated. Summary of the invention

The invention provides a display control method and device for a 0 LED, and a terminal device, which use a new power saving mode to reduce the power consumption of the terminal device where the 0 LED is located.

In one aspect, a display control method for an LED is provided, including:

Obtaining the power of the terminal device where the 0 LED is located;

Determining a grayscale value of a pixel of the GUI-controlled image corresponding to the power amount according to a correspondence between the power quantity and a grayscale value of a pixel of the image controlled by the GUI;

And adjusting, according to the determined grayscale value, a grayscale value of a pixel of the image in the terminal device, so that the 0LED performs pixel display according to a grayscale value of the pixel.

Another aspect provides an LED display control device, including:

An obtaining unit, configured to acquire a power quantity of the terminal device where the 0 LED is located;

a determining unit, configured to determine a grayscale value of a pixel of the GUI-controlled image corresponding to the power amount acquired by the acquiring unit according to a correspondence between a power quantity and a grayscale value of a pixel of the GUI-controlled image;

An adjusting unit, configured to adjust, according to the grayscale value determined by the determining unit, the image in the terminal device The grayscale value of the pixel.

Another aspect provides a terminal device including a display control device of 0 LED and the above 0 LED.

According to the foregoing technical solution, the embodiment of the present invention determines the power of the terminal device where the OLED is located, and determines the GUI-controlled image corresponding to the power according to the correspondence between the power and the grayscale value of the pixel of the image controlled by the GUI. a grayscale value of the pixel, so that the grayscale value of the pixel of the image in the terminal device is adjusted according to the determined grayscale value, so that the OLED displays the pixel according to the grayscale value of the pixel , can effectively reduce the power consumption of the terminal device where the OLED is located. BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some embodiments of the present invention, and other drawings may be obtained from those of ordinary skill in the art without departing from the scope of the invention.

1 is a schematic flow chart of a display control method for an 0 LED according to an embodiment of the present invention;

2 is a schematic structural diagram of a display control device for an 0 LED according to another embodiment of the present invention;

3 is a schematic diagram showing results of performing power test of a terminal device in the embodiment corresponding to FIG. 1;

4A is a schematic diagram showing the pixel display of the current GUI theme of the terminal device in the embodiment corresponding to FIG. 1. FIG. 4B is a schematic diagram showing the pixel display of the GUI theme corresponding to the most power-saving grayscale value of the terminal device in the embodiment corresponding to FIG. ;

FIG. 5 is a schematic structural diagram of a display control device for an OLED according to another embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a display control device for an 0 LED according to another embodiment of the present invention. The embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. The described embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that the technical solution of this embodiment can be used in a next-generation product of OLED, for example: an active matrix OLED (ACT MAT 0 LED). 1 is a schematic flowchart of a display control method for an OLED according to an embodiment of the present invention. As shown in FIG. 1, the display control method for an OLED of the present embodiment may include:

101. Obtain the power of the terminal device where the above 0 LED is located.

It should be noted that the terminal may perform the power scan in a fixed cycle, or may receive the periodic reporting of the power of the battery module, or may set the threshold of the battery module to be reported.

102. Determine, according to the correspondence between the power and the grayscale value of the pixel of the image controlled by the Graphic User Interface (GUI), determine the grayscale value of the pixel of the GUI-controlled image corresponding to the power amount. .

It should be noted that we see every point on the screen, that is, one pixel, which is composed of three sub-pixels of red, green and blue (RGB). To realize the change of the color of the picture, it is necessary to have three sub-pixels of RGB. The pixels are individually controlled with different shades to "mix" different colors. Here, the specific brightness level for RGB is the gray level. By having each RGB sub-pixel exhibit a different grayscale value, it is possible to match different colors, and the screen can also display a rich, vivid and vivid image. All the images we see on the display on a daily basis are also the result of changes in grayscale values. Wherein, the grayscale value of each pixel can be represented as Yn, and Υη can be obtained by subpixel RGB conversion. For example, the conversion formula is: Y=0. 299R+0. 587G+0. 114B. It is possible to select other conversion formulas during the actual implementation. This is just an example.

It should be noted that, through the power test, as shown in Figure 3, it can be measured that 0 gray scale (gray scale value is 0) is the most energy-saving (8mW) in the 0LED; and 255 gray scale (gray scale value is 255) The most power consumption in the 0LED (422mW) ₀ The power consumption difference between the two is 50 times. Appropriate adjustment of the GUI design will greatly reduce the power consumption of the 0LED and effectively reduce the power consumption of the terminal device where the 0LED is located. Further, reducing the power consumption is to change the RGB value or the grayscale value of the pixel, or it can be said that the color is saved to display the pixel, so that the resolution of the screen is not affected, but only affects the color effect of the image. Therefore, the user can operate the mobile phone with good definition, so that the current of controlling the OLED can be solved in the prior art, and the power consumption of the terminal device where the OLED is located is reduced, and the visual effect of the image displayed by the OLED is changed. Poor question. For example, the determined grayscale value of the pixel of the GUI-controlled image corresponding to the foregoing power may include, but is not limited to, at least one of a black grayscale value and a grayscale value, which can reduce power consumption to a large extent.

The correspondence between the foregoing power quantity and the grayscale value of the pixel of the image controlled by the GUI may be preset in the terminal device or downloaded from the server and saved in the terminal device. For example: The correspondence between the electric quantity and the grayscale value of the pixel of the image controlled by the GUI can be as shown in Table 1. The correspondence between the electric quantity here and the grayscale value of the pixel of the image controlled by the GUI is only an example. Of course, the image controlled by the GUI in Table 1 may be global, that is, the GUI control corresponding to each electric quantity value. The grayscale value of the image is global, adjusted with the same grayscale value screen display. The actual implementation process can be adjusted as needed, and is not specifically limited in the embodiment of the present invention. Table 1 Correspondence between the amount of electricity and the grayscale value of the pixel of the image controlled by the GUI

Optionally, in this embodiment, a set of GUI topics corresponding to the most power-saving grayscale values (as shown in FIG. 4B) may be preset in the terminal device, and pre-positioned in the terminal device, and the power of the terminal device is reduced to When a certain degree or user active activation, replacing the current GUI theme (as shown in FIG. 4A) for pixel display can achieve the purpose of power saving, effectively improving the brightness and contrast of the image displayed by the 0 LED under low power, and the terminal device. Utilization rate.

Optionally, in this embodiment, the network side or the cloud server may further provide multiple sets of GUI topics corresponding to the grayscale values that can save power, so that the terminal device can download and use the power of the terminal device to a certain extent or the user. When active activation, replacing the current GUI theme for pixel display can effectively reduce the power consumption of the terminal device where the OLED is located, for example: power saving 20% GUI theme, power saving 40% GUI theme, power saving 60% GUI theme.

103. Adjust a grayscale value of the pixel of the image in the terminal device according to the determined grayscale value, so that the 0LED performs pixel display according to the grayscale value of the pixel.

The execution body of the above 10Γ103 may be a terminal device such as a mobile phone, a television, a navigator or the like.

The GUI-based control image may include, but is not limited to, at least one of a GUI-controlled picture (eg, a standby wallpaper, an application background, a picture icon, etc.) and a text (eg, a text icon, etc.).

For example, in 103, the terminal device can identify at least one of the GUI-controlled picture and the text in the terminal device, and then, according to the determined grayscale value, adjust at least one of the identified picture and the text. The grayscale value of the pixel of the item. The terminal device can recognize a GUI-controlled picture in a database storing a picture (for example, an image package), and identify a GUI-based font in a database (for example, a font) in which the font is stored.

In 103, the grayscale value of the pixel of the GUI-controlled image in the terminal device can be adjusted by software to fill or stretch the small-sized image.

Optionally, in this embodiment, the terminal device may further receive an instruction for adjusting a grayscale value, according to the adjustment. The grayscale value command adjusts the grayscale value of the pixel of the image in the terminal device, so that the 0LED performs pixel display according to the grayscale value of the pixel, thereby further flexibly achieving the purpose of power saving. The instruction for adjusting the grayscale value may be that the user directly adjusts the RGB parameter value, or may directly adjust the grayscale value by giving the user entry. The user can go to the corresponding level of grayscale value without waiting for the corresponding level of power, and can adjust the grayscale value to a more power-saving situation in advance, thereby further extending the battery life.

It should be noted that: if the terminal device adjusts the grayscale value of the pixel of the image in the terminal device according to the instruction of adjusting the grayscale value triggered by the user, the subsequent device may not be within a preset time. Execute 10Γ103; or detect that the terminal power reaches 100% and then start the automatic detection of power again, execute 10Γ103; or start the automatic detection of power after the terminal restarts, execute 101-103.

It can be understood that, in this embodiment, if the GUI-based control image includes an indication image (ie, a useful image, for example, time in the mobile phone interface), the grayscale of the pixel according to the GUI-controlled image may be used. a value, the grayscale value of the pixel of the indicator image included in the GUI control-based image in the terminal device is adjusted to be a white grayscale value, and the grayscale value of the pixel corresponding to the other part of the image in the GUI-controlled image is It is at least one of a black grayscale value and a gray grayscale value, and can retain an indicative image in a GUI-controlled picture, thereby improving display reliability and further improving utilization of the terminal device.

In this embodiment, by obtaining the power quantity of the terminal device where the OLED is located, and determining the gray level of the pixel of the image controlled by the GUI corresponding to the electric quantity according to the correspondence between the electric quantity and the grayscale value of the pixel of the image controlled by the GUI, a value, which is capable of adjusting a grayscale value of a pixel of the image controlled by the GUI in the terminal device according to the determined grayscale value, so that the LED displays the pixel according to the grayscale value of the pixel, which is effective Reduce the power consumption of the terminal device where the 0LED is located.

It should be noted that, for each of the foregoing method embodiments, for the description of the package, it is expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because certain steps may be performed in other orders or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

2 is a schematic structural diagram of a display control device for an OLED according to another embodiment of the present invention. As shown in FIG. 2, the display control device of the OLED of the present embodiment may include an obtaining unit 21, a determining unit 22, and an adjusting unit 23. The obtaining unit 21 is configured to acquire the power quantity of the terminal device where the OLED is located, and the determining unit 11 is configured to determine, according to the correspondence between the power quantity and the grayscale value of the pixel of the image controlled by the GUI, the foregoing acquired by the acquiring unit 21 The grayscale value of the pixel of the GUI-based image corresponding to the power consumption; the adjusting unit 23 is configured to adjust the grayscale value of the pixel of the image in the terminal device according to the grayscale value determined by the determining unit 22.

The method in the embodiment corresponding to the above FIG. 1 can be implemented by the display control device of the 0 LED provided in this embodiment. The correspondence between the power quantity and the grayscale value of the pixel of the image controlled by the GUI may be preset in the terminal device or downloaded from the server and saved in the terminal device.

For example, as shown in FIG. 5, the adjustment unit 23 may include an identification subunit 51 and a first adjustment subunit 52. The identification sub-unit 51 is configured to identify at least one of the GUI-controlled pictures and characters in the terminal device; the first adjustment sub-unit 52 is configured to adjust the identification sub-unit 51 according to the gray-scale value determined by the determining unit 22. The grayscale value of the pixel of at least one of the recognized picture and text.

Optionally, in this embodiment, as shown in FIG. 6, the adjusting unit 23 may include a receiving subunit 61 and a second adjusting subunit 62. The receiving subunit 61 is configured to receive an instruction for adjusting the grayscale value; and the second adjusting subunit 62 is configured to adjust the grayscale value of the pixel of the image in the terminal device according to the instruction for adjusting the grayscale value.

In this embodiment, the power of the terminal device where the OLED is located is obtained by the acquiring unit, and the determining unit determines the GUI-based control corresponding to the amount of power acquired by the acquiring unit according to the correspondence between the power level and the grayscale value of the pixel of the image controlled by the GUI. The grayscale value of the pixel of the image, so that the adjustment unit can adjust the grayscale value of the pixel of the image controlled by the GUI in the terminal device according to the grayscale value determined by the determining unit, for the OLED according to the pixel The grayscale value is displayed in pixels, which effectively reduces the power consumption of the terminal device where the OLED is located.

The embodiment of the present invention may further provide a terminal device, which may include a 0 LED and a display control device of the 0 LED provided by the embodiment corresponding to FIG. 2 .

A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working processes of the system, the device and the unit described above can be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, apparatus, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple On the network unit. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional units are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform part of the steps of the method of the various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (Read-Only Memory), a random access memory (Random Acces s Memory), a magnetic disk, or an optical disk. A medium that can store program code.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced by the same. However, the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A display control method for an LED, characterized in that it comprises:

Obtaining the power of the terminal device where the 0 LED is located;

Determining a grayscale value of a pixel of the GUI-controlled image corresponding to the power amount according to a correspondence relationship between the power amount and a grayscale value of a pixel of the image controlled by the GUI;

2. The method according to claim 1, wherein the correspondence between the electric quantity and the grayscale value of the pixel of the image controlled by the GUI is preset in the terminal or downloaded from the server and saved in the terminal.

The method according to claim 1 or 2, wherein the determined grayscale value comprises at least one of a black grayscale value and a grayscale value.

The method according to any one of claims 1 to 3, wherein the adjusting the grayscale value of the pixel of the image in the terminal device according to the determined grayscale value comprises:

Identifying at least one of a GUI-based picture and text in the terminal device;

And adjusting a grayscale value of a pixel of at least one of the recognized picture and the text according to the determined grayscale value.

The method according to any one of claims 1 to 4, wherein the method further comprises: receiving an instruction for adjusting a grayscale value;

Adjusting a grayscale value of a pixel of the image in the terminal device according to the instruction for adjusting a grayscale value.

6. A display control device for an LED, characterized in that:

And an adjusting unit, configured to adjust a grayscale value of a pixel of the image in the terminal device according to the grayscale value determined by the determining unit.

The device according to claim 6, wherein the adjustment unit comprises:

An identification subunit, configured to identify at least one of a picture and a text based on a GUI control in the terminal device; a first adjustment subunit, configured to adjust the identifier according to a grayscale value determined by the determining unit The grayscale value of the pixel of at least one of the picture and the text recognized by the unit.

The device according to claim 6 or 7, wherein the adjusting unit further comprises: a receiving subunit, configured to receive an instruction for adjusting a grayscale value;

a second adjusting subunit, configured to adjust a grayscale value of a pixel of the image in the terminal device according to the instruction for adjusting a grayscale value.

A terminal device characterized by comprising a 0 LED and a display control device for an 0 LED according to any of claims 6-8.