CN113672188A - Low-end MCU (micro control unit) -based OLED (organic light emitting diode) screen efficient display method and household appliance - Google Patents
Low-end MCU (micro control unit) -based OLED (organic light emitting diode) screen efficient display method and household appliance Download PDFInfo
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- 238000003860 storage Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000005055 memory storage Effects 0.000 description 4
- 235000021168 barbecue Nutrition 0.000 description 3
- 235000012020 french fries Nutrition 0.000 description 3
- 235000013550 pizza Nutrition 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
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Abstract
The application discloses an OLED screen efficient display method based on a low-end MCU and a household appliance, wherein if the method does not accord with a frame picture switching condition, first frame picture data is directly sent to an OLED buffer memory to display a first frame picture by screen refreshing; if the frame picture switching condition is met, performing screen clearing in the current screen refreshing period, and sending updated display data to an OLED buffer memory in the next screen refreshing period; and the first frame picture is a current display frame picture of the OLED screen. The OLED screen efficient display method based on the low-end MCU and the household appliance are low in cost, capable of meeting OLED display requirements and good in display effect.
Description
Technical Field
The embodiment of the application relates to the technical field of display, in particular to an OLED screen efficient display method based on a low-end MCU and a household appliance.
Background
Currently, an Organic Light Emitting Diode (OLED) display is considered as a new application technology of a next-generation flat panel display because of its excellent characteristics of self-luminescence, no need of a backlight source, high contrast, thin thickness, wide viewing angle, fast response speed, applicability to a flexible panel, wide temperature range, simple structure and process, and the like.
In the prior art, the OLED display generally adopts a timing screen refreshing mode, and before each screen refreshing (namely, frame picture data is sent to the OLED buffer memory), the screen refreshing needs to be performed first, but the screen refreshing needs to occupy a large amount of system operation resources and a large amount of memory. Therefore, in order to meet the requirement of the OLED screen refreshing display, a Micro Control Unit (MCU) with a high main frequency, a fast operation speed and a large flash memory space is generally used.
However, such MCU is expensive, which causes the overall cost of the household appliance using the OLED display to be greatly increased, and the application of the OLED display to the household appliance is limited.
Disclosure of Invention
The embodiment of the application provides an OLED screen efficient display method based on a low-end MCU and a household appliance, and the OLED screen efficient display method is low in cost, capable of meeting OLED display requirements and good in display effect.
According to a first aspect of the present application, an embodiment of the present application provides a method for efficiently displaying an OLED screen based on a low-side MCU, the method including:
if the frame switching condition is not met, go to step S1;
if the frame switching condition is satisfied, go to step S2;
s1: directly sending first frame image data to an OLED buffer memory to display a first frame image by screen refreshing;
s2: clearing the screen in the current screen refreshing period, and sending updated display data to an OLED buffer memory in the next screen refreshing period;
and the first frame picture is a current display frame picture of the OLED screen.
Optionally, the step S1 specifically includes:
s11: sending first frame picture data to an OLED buffer memory period according to a screen refreshing period;
s12: judging whether the continuous display time of the first frame picture is equal to the preset display time of the first frame picture;
if not, returning to the step S11; if yes, go to step S21 or step S22.
Optionally, the frame picture switching condition is specifically: and receiving a preset image switching instruction.
Optionally, the step S2 specifically includes:
step S21: clearing the screen in the current screen refreshing period to clear the first frame of picture, and sending second frame of picture data to the OLED buffer memory in the next screen refreshing period to display the second frame of picture in the screen refreshing manner;
the first frame picture is different from the second frame picture.
Optionally, the frame picture switching condition is specifically: and receiving a preset local picture switching instruction.
Optionally, the step S2 specifically includes:
step S22: and in the current screen refreshing period, screen refreshing is carried out on a plurality of effective display areas in the plurality of effective display areas of the first frame of picture so as to clear the character models on the plurality of effective display areas, and updated character model data corresponding to the plurality of effective display areas is sent to the OLED buffer memory in the next screen refreshing period so as to refresh the screen in the corresponding effective display areas to display the updated character models.
Optionally, the step S22 further includes:
and directly sending the original character module data of the rest effective display areas in the plurality of effective display areas of the first frame of picture to the OLED buffer memory so as to display the original character module by screen refreshing.
Optionally, the first frame picture includes a plurality of effective display areas, and/or the second frame picture includes a plurality of effective display areas; the effective display area is used for displaying the corresponding character matrix.
Optionally, one preset local picture switching instruction corresponds to one effective display area;
the effective display area correspondingly displays a plurality of different character models;
and the different character models are arranged in sequence, and when the preset local picture switching instruction is received once, one character model in the different character models is switched to the next character model in sequence so as to be displayed in the effective display area.
According to a second aspect of the present application, an embodiment of the present application provides a household appliance, which includes:
a memory for storing executable instructions;
and the low-end MCU is used for realizing the method of any embodiment when the executable instruction stored in the memory is executed.
In the embodiment of the application, the low-end MCU with lower cost is used, so that the cost of the product is greatly reduced; meanwhile, when the frame image switching condition is not met, the screen does not need to be cleared firstly, the first frame image data is directly sent to the OLED buffer memory for screen refreshing display, the occupied memory is small, the OLED display requirement can be met, and the display effect is good.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of an efficient display method of an OLED screen based on a low-end MCU according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
In the prior art, a high-end MCU is used and connected with an OELD display screen for application, so that the overall cost of a household appliance applying the MCU and the OLED display screen is increased, and the application of the OLED display screen in a household appliance is further limited. The high-end MCU is a microprocessor with high main frequency, fast operation and large flash memory storage.
In order to solve the problem of high cost, part manufacturers adopt the low-end MCU to be connected and matched with the OLED display screen, and the cost can be effectively reduced by adopting the low-end MCU. The low-end MCU is a microprocessor with low main frequency, low running speed and small memory storage.
However, the OLED display generally adopts a timing screen refreshing mode, that is, each screen refreshing cycle needs to be performed before screen refreshing. Under the condition of frequent screen cleaning and refreshing, occupied system operation resources and internal memory are large; if the low-end MCU is adopted, due to inherent defects of low main frequency, low running speed and the like, the display requirement of the OLED cannot be met, the consumed time is long, and other programs can not run normally easily.
Specifically, in the embodiment of the application, an 8-bit low-end MCU with a main frequency of 16MHz is taken as an example, the MCU performs screen clearing before each screen refreshing, and the screen clearing needs to occupy 128 × 8 to 1024 times of OLED buffer memory, which is time-consuming, and may take more than 20ms, occupy excessive running time, and cause that other program codes cannot run normally.
In order to overcome the inherent defects of low main frequency and low running speed of the low-end MCU, the OLED screen efficient display method based on the low-end MCU is adopted in the application, so that the situation that system running resources are occupied by frequent screen refreshing is avoided, and the OLED display method has the advantages of low cost, good OLED display effect, flexible and changeable display contents, small occupied storage space of a word stock and the like.
Example 1
As shown in fig. 1, a flowchart of an OLED display efficient display method based on a low-side MCU according to an embodiment of the present application is shown, where the method includes:
if the frame switching condition is not met, go to step S1;
if the frame switching condition is satisfied, go to step S2;
s1: directly sending first frame image data to an OLED buffer memory to display a first frame image by screen refreshing;
s2: clearing the screen in the current screen refreshing period, and sending updated display data to an OLED buffer memory in the next screen refreshing period;
and the first frame picture is a current display frame picture of the OLED screen.
In the embodiment of the application, the low-end MCU with lower cost is used, so that the cost of the product is greatly reduced; meanwhile, when the frame image switching condition is not met, the screen does not need to be cleared firstly, the first frame image data is directly sent to the OLED buffer memory for screen refreshing display, the occupied memory is small, the OLED display requirement can be met, and the display effect is good.
The OLED screen efficient display method based on the low-end MCU according to the embodiment of the present application is described in detail as follows:
the low-end MCU is a microprocessor with low main frequency, low running speed and small memory storage. Specifically, the low-end MCU is an 8-bit MCU with a main frequency of 16 MHz.
The OLED screen is used for displaying different frame pictures, each frame picture comprises a plurality of effective display areas, and the effective display areas are used for displaying the character dies corresponding to the effective display areas.
Specifically, the first frame is a frame currently displayed by the OLED screen, and the second frame is a frame after the display data is updated. The first frame picture includes a plurality of effective display areas, and/or the second frame picture includes a plurality of effective display areas.
In the embodiment of the present application, each frame picture is split into a plurality of effective display areas. Each display area has a determinant coordinate corresponding to the OLED screen. And if and only if the number of the display areas on the two frame pictures is the same and the coordinates of each display area are also the same, defining the two frame pictures as the same frame picture.
Specifically, for example, a frame of a picture includes five effective display areas, where each effective display area has a determinant coordinate corresponding to the OLED panel, and if there are only four effective display areas in a certain frame of the picture, the frame of the picture belongs to different frames of the picture. If there are 5 effective display areas in a frame, but the coordinates of the effective display areas are different, the frame also belongs to different frames.
When the number of the effective display areas of the two frame pictures and the coordinates of each effective display area are the same, even if the font data of a plurality of the effective display areas are different, the two frame pictures are the same frame picture.
Preferably, the frame picture switching condition includes: the frame picture to be displayed and the first frame picture are different frame pictures.
Wherein, the step S1 specifically includes:
s11: sending first frame picture data to an OLED buffer memory period according to a screen refreshing period;
s12: judging whether the continuous display time of the first frame picture is equal to the preset display time of the first frame picture; if not, returning to the step S11; if yes, go to step S21 or step S22.
In this embodiment, the frame switching condition is that a preset frame switching instruction is received.
Preferably, one preset picture switching instruction corresponds to one frame picture, and different preset picture switching instructions correspond to different frame pictures; and/or one preset image switching instruction corresponds to a plurality of frame images, and the plurality of frame images are different.
And the plurality of frame pictures are arranged in sequence, and when the preset picture switching instruction is received once, one frame picture in the plurality of frame pictures is switched to the next frame picture in sequence.
In particular, household appliances are exemplified, such as wall breaking machines, coffee makers, ovens, etc. The household appliance comprises a mode switching function, and frame pictures of a pizza mode, a cake mode, a barbecue mode and a French fries mode are preset in the household appliance. Correspondingly, the household appliance can be provided with keys corresponding to a pizza mode, a cake mode, a barbecue mode, a French fries mode and the like, when a user operates the corresponding mode key, the preset image switching instruction is triggered and generated, and the currently displayed frame image is switched to the frame image corresponding to the preset image switching instruction; the household appliance can also be provided with a mode switching key, when a user or an operator carries out the mode switching key, the preset image switching instruction is triggered and generated, and the frame images of the preset pizza mode, cake mode, barbecue mode and French fries mode are switched and presented in sequence.
The method of the embodiment of the application comprises the following steps:
if the preset screen switching instruction is not received, step S1 is executed: directly sending first frame image data to an OLED buffer memory to display a first frame image by screen refreshing;
if the preset image switching command is received, step S2 is executed: and clearing the screen in the current screen refreshing period, and sending updated display data to the OLED buffer memory in the next screen refreshing period.
Wherein the step S1 includes:
s11: sending first frame picture data to an OLED buffer memory period according to a screen refreshing period;
s12: judging whether the continuous display time of the first frame picture is equal to the preset display time of the first frame picture; if not, displaying the first frame picture, and returning to the step S11; if yes, go to step S21.
Wherein the step S2 is:
step S21: clearing the screen in the current screen refreshing period to clear the first frame of picture, and sending second frame of picture data to the OLED buffer memory in the next screen refreshing period to display the second frame of picture in the screen refreshing manner;
wherein the first frame picture is different from the second frame picture.
Specifically, the first frame is a frame currently displayed by the OLED screen, and the second frame is a frame after the display data is updated.
Specifically, when a preset image switching instruction is not received, first frame image data is sent to the OLED buffer memory period according to the screen refreshing period, whether the preset display time of the frame image reaches or not is judged during each screen refreshing, and if the preset display time does not reach, only screen refreshing is continued and screen clearing processing is not carried out. And if the preset display time is reached, performing screen clearing in the current screen refreshing period to clear the first frame of picture. And sending second frame image data to the OLED buffer memory in the next screen refreshing period so as to display the second frame image by refreshing.
And when a preset image switching instruction is received, performing screen clearing in the current screen refreshing period to clear the first frame of image. And sending second frame image data to the OLED buffer memory in the next screen refreshing period so as to display the second frame image by refreshing.
Example 2
The embodiment of the application is basically the same as the embodiment 1, and the main difference is that: in this embodiment, the frame switching condition is specifically that a preset local frame switching instruction is received.
Preferably, a preset local picture switching instruction corresponds to an effective display area;
the effective display area correspondingly displays a plurality of different character models;
and the different character models are arranged in sequence, and when the preset local picture switching instruction is received once, one character model in the different character models is switched to the next character model in sequence so as to be displayed in the effective display area.
Specifically, local adjustment keys, such as a temperature adjustment key, a reserved time adjustment key, and the like, are provided in the home appliance. In an effective display area, a plurality of different character types can be correspondingly displayed, such as 0-9 digital character types in time or temperature, and the like, the 0-9 digital character types are arranged in sequence, and when a user operates an adjusting key, a preset local picture switching instruction is triggered and generated, so that the character type corresponding to the effective display area is switched from the current character type to the next character type.
Specifically, the method of the embodiment of the present application includes:
if the preset local screen switching instruction is not received, step S1 is executed: directly sending first frame image data to an OLED buffer memory to display a first frame image by screen refreshing;
if the preset local screen switching command is received, step S2 is executed: and clearing the screen in the current screen refreshing period, and sending updated display data to the OLED buffer memory in the next screen refreshing period.
Wherein the step S1 includes:
s11: sending first frame picture data to an OLED buffer memory period according to a screen refreshing period;
s12: judging whether the continuous display time of the first frame picture is equal to the preset display time of the first frame picture; if not, displaying the first frame picture, and returning to the step S11; if yes, go to step S22.
Wherein the step S2 is:
step S22: and in the current screen refreshing period, screen refreshing is carried out on a plurality of effective display areas in the plurality of effective display areas of the first frame of picture so as to clear the character models on the plurality of effective display areas, and updated character model data corresponding to the plurality of effective display areas is sent to the OLED buffer memory in the next screen refreshing period so as to refresh the screen in the corresponding effective display areas to display the updated character models.
Preferably, the step S22 further includes: and directly sending the original character module data of the rest effective display areas in the plurality of effective display areas of the first frame of picture to the OLED buffer memory so as to display the original character module by screen refreshing.
Specifically, when a preset local picture switching instruction is not received, first frame picture data is sent to an OLED buffer memory period according to a screen refreshing period, whether the preset display time of the frame picture reaches or not is judged during each screen refreshing, and if the preset display time does not reach, only screen refreshing is continued and screen clearing processing is not conducted. And if the preset display time is reached, in the current screen refreshing period, clearing the screen of a plurality of effective display areas in the plurality of effective display areas of the first frame of picture to clear the character dies on the plurality of effective display areas, and in the next screen refreshing period, sending updated character die data corresponding to the plurality of effective display areas to the OLED buffer memory to display the updated character dies in the corresponding effective display areas. Preferably, the step S22 further includes: and directly sending the original character module data of the rest effective display areas in the plurality of effective display areas of the first frame of picture to the OLED buffer memory so as to display the original character module by screen refreshing.
When a preset local picture switching instruction is received, in the current screen refreshing period, screen cleaning is carried out on a plurality of effective display areas in a plurality of effective display areas of the first frame picture so as to clean character models on the effective display areas, and updated character model data corresponding to the effective display areas are sent to an OLED buffer memory in the next screen refreshing period so as to refresh the screen in the corresponding effective display areas to display the updated character models. Preferably, the step S22 further includes: and directly sending the original character module data of the rest effective display areas in the plurality of effective display areas of the first frame of picture to the OLED buffer memory so as to display the original character module by screen refreshing.
Example 3
The embodiment of the application is basically the same as the embodiments 1 and 2, and the main difference is that: in this embodiment, the frame switching condition is specifically: and receiving a preset local picture switching instruction or a preset picture switching instruction.
Specifically, the method of the embodiment of the present application includes:
if any one of the preset picture switching command and the preset partial picture switching command is not received, step S1 is executed: directly sending first frame image data to an OLED buffer memory to display a first frame image by screen refreshing;
if the preset frame switching command or the preset partial frame switching command is received, step S2 is executed: and clearing the screen in the current screen refreshing period, and sending updated display data to the OLED buffer memory in the next screen refreshing period.
Wherein, the step S1 specifically includes:
s11: sending first frame picture data to an OLED buffer memory period according to a screen refreshing period;
s12: judging whether the continuous display time of the first frame picture is equal to the preset display time of the first frame picture; if not, displaying the first frame picture, and returning to the step S11; if yes, go to step S21 or step S22. Here, the step S21 is as described in the above embodiment 1, and is not described herein again. The step S22 is as described in the above embodiment 2, and is not described herein again.
Wherein the step S2 is:
step S23: when a preset image switching instruction is received, performing screen clearing in the current screen refreshing period to clear the first frame of image, and sending second frame of image data to the OLED buffer memory in the next screen refreshing period to display the second frame of image by screen refreshing; specific exemplary descriptions are not repeated here.
When a preset local picture switching instruction is received, a plurality of effective display areas in a plurality of effective display areas of the first frame picture are cleared to clear the character dies on the effective display areas, and updated character die data corresponding to the effective display areas are sent to the OLED buffer memory in the next screen refreshing period, so that the updated character dies are displayed in the corresponding effective display areas in a screen refreshing mode.
Preferably, when receiving the preset partial screen switching instruction, the step S2 further includes: and directly sending the original character module data of the rest effective display areas in the plurality of effective display areas of the first frame of picture to the OLED buffer memory so as to display the original character module by screen refreshing, which is described in detail herein for exemplary purposes.
The embodiment of the application also provides a household appliance, which comprises a memory, a storage unit and a control unit, wherein the memory is used for storing executable instructions; and the low-end MCU is used for realizing the method of any one of the embodiments when the executable instructions stored in the memory are executed.
The low-end MCU is a microprocessor with low main frequency, low running speed and small memory storage. Specifically, the low-end MCU is an 8-bit MCU with a main frequency of 16 MHz.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A high-efficiency display method of an OLED screen based on a low-end MCU is characterized by comprising the following steps:
if the frame switching condition is not met, go to step S1;
if the frame switching condition is satisfied, go to step S2;
s1: directly sending first frame image data to an OLED buffer memory to display a first frame image by screen refreshing;
s2: clearing the screen in the current screen refreshing period, and sending updated display data to an OLED buffer memory in the next screen refreshing period;
and the first frame picture is a current display frame picture of the OLED screen.
2. The method according to claim 1, wherein the step S1 includes:
s11: sending first frame picture data to an OLED buffer memory period according to a screen refreshing period;
s12: judging whether the continuous display time of the first frame picture is equal to the preset display time of the first frame picture;
if not, returning to the step S11;
if yes, go to step S21 or step S22.
3. The method according to claim 1, wherein the frame switching condition is specifically: and receiving a preset image switching instruction.
4. The method according to claim 3, wherein the step S2 is specifically:
step S21: clearing the screen in the current screen refreshing period to clear the first frame of picture, and sending second frame of picture data to the OLED buffer memory in the next screen refreshing period to display the second frame of picture in the screen refreshing manner;
the first frame picture is different from the second frame picture.
5. The method according to claim 1, wherein the frame switching condition is specifically: and receiving a preset local picture switching instruction.
6. The method according to claim 5, wherein the step S2 is specifically:
step S22: and in the current screen refreshing period, screen refreshing is carried out on a plurality of effective display areas in the plurality of effective display areas of the first frame of picture so as to clear the character models on the plurality of effective display areas, and updated character model data corresponding to the plurality of effective display areas is sent to the OLED buffer memory in the next screen refreshing period so as to refresh the screen in the corresponding effective display areas to display the updated character models.
7. The method according to claim 6, wherein the step S22 further comprises:
and directly sending the original character module data of the rest effective display areas in the plurality of effective display areas of the first frame of picture to the OLED buffer memory so as to display the original character module by screen refreshing.
8. The method of claim 1, wherein:
the first frame picture comprises a plurality of effective display areas, and/or the second frame picture comprises a plurality of effective display areas;
the effective display area is used for displaying the corresponding character matrix.
9. The method of claim 8, wherein:
a preset local picture switching instruction corresponds to an effective display area;
the effective display area correspondingly displays a plurality of different character models;
and the different character models are arranged in sequence, and when the preset local picture switching instruction is received once, one character model in the different character models is switched to the next character model in sequence so as to be displayed in the effective display area.
10. A household appliance, characterized in that it comprises:
a memory for storing executable instructions;
a low-end MCU adapted to implement the method of any of claims 1 to 9 when executing executable instructions stored in said memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110988855.XA CN113672188A (en) | 2021-08-26 | 2021-08-26 | Low-end MCU (micro control unit) -based OLED (organic light emitting diode) screen efficient display method and household appliance |
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