CN115376468A - Mobile terminal and display driving method of electronic ink screen thereof - Google Patents
Mobile terminal and display driving method of electronic ink screen thereof Download PDFInfo
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- CN115376468A CN115376468A CN202110553392.4A CN202110553392A CN115376468A CN 115376468 A CN115376468 A CN 115376468A CN 202110553392 A CN202110553392 A CN 202110553392A CN 115376468 A CN115376468 A CN 115376468A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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Abstract
The application provides a mobile terminal and a display driving method of an electronic ink screen of the mobile terminal, and belongs to the technical field of display. The mobile terminal includes a first processor and a second processor. The first processor can convert the color image data of the image to be displayed with larger size into display driving data in a soft decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. The second processor can convert the color image data of the image to be displayed with smaller size into display driving data in a hard decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. As for the images to be displayed with different sizes, different processors can convert image data in different decoding modes to drive the electronic ink screen to display, the display driving method provided by the application has higher flexibility.
Description
Technical Field
The application relates to the technical field of display, in particular to a mobile terminal and a display driving method of an electronic ink screen of the mobile terminal.
Background
Currently, a mobile terminal generally includes a first processor and an electronic ink screen, and the first processor is connected to the electronic ink screen. The first processor is used for converting the color image data of the image to be displayed into display driving data adaptive to the electronic ink screen and then transmitting the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image. However, the flexibility of this driving method is low.
Disclosure of Invention
The application provides a mobile terminal and a display driving method of an electronic ink screen of the mobile terminal, which can solve the problem of low flexibility of driving the electronic ink screen to display in the related art. The technical scheme is as follows:
in one aspect, a mobile terminal is provided, and the mobile terminal includes: the electronic ink screen comprises an electronic ink screen, a first processor and a second processor, wherein the first processor is respectively connected with the second processor and the electronic ink screen, and the second processor is also connected with the electronic ink screen;
the first processor is used for converting color image data of a first image to be displayed in a first display scene into display driving data in a soft decoding mode and transmitting the display driving data to the electronic ink screen if the current display scene is determined to be the first display scene; if the current display scene is determined to be a second display scene, transmitting color image data of a second image to be displayed in the second display scene to the second processor, wherein the size of the first image to be displayed is larger than that of the second image to be displayed;
the second processor is used for converting the received color image data into display driving data in a hard decoding mode and transmitting the display driving data to the electronic ink screen;
the electronic ink screen is used for displaying images based on the received display driving data.
Optionally, the mobile terminal further includes: the first switch circuit is respectively connected with the first processor, the second processor and the electronic ink screen;
the first processor is further configured to transmit a first switch control signal to the first switch circuit if it is determined that the current display scene is the first display scene; if the current display scene is determined to be the second display scene, transmitting a second switch control signal to the first switch circuit;
the first switch circuit is used for responding to the first switch control signal and controlling the first processor to be conducted with the electronic ink screen; and responding to the second switch control signal, and controlling the second processor to be conducted with the electronic ink screen.
Optionally, the mobile terminal further includes: the second switch circuit is respectively connected with the first processor, the second processor and the power supply circuit, and the power supply circuit is also respectively connected with a power supply and the electronic ink screen;
the first processor is further configured to transmit a third switch control signal to the second switch circuit if it is determined that the current display scene is the first display scene; if the current display scene is determined to be a second display scene, transmitting a fourth switch control signal to the second switch circuit;
the second switch circuit is used for responding to the third switch control signal and controlling the power supply circuit to be conducted with the first processor; and in response to the fourth switch control signal, controlling the power supply circuit to be conducted with the second processor;
the first processor and the second processor are both used for transmitting a power supply control signal to the power supply circuit after being conducted with the power supply circuit;
and the power supply circuit is used for supplying power to the electronic ink screen based on a power supply signal provided by the power supply after receiving the power supply control signal.
Optionally, the mobile terminal further includes: the interface conversion circuit is connected with the first processor through a Mobile Industry Processor Interface (MIPI), and is connected with the electronic ink screen through a Display Pixel Interface (DPI);
the interface conversion circuit is used for converting the display driving data sent by the first processor from an MIPI format to a DPI format and then transmitting the display driving data to the electronic ink screen.
Optionally, the first processor is connected with the second processor through MIPI, and the second processor is connected with the electronic ink screen through DPI;
and the second processor is also used for converting the received color image data in the MIPI format into display driving data in a DPI format and then transmitting the display driving data to the electronic ink screen.
Optionally, the second display scene includes: and displaying the scene by handwriting.
Optionally, the first processor is further configured to determine that a current display scene is a handwriting display scene in response to the handwriting touch instruction.
In another aspect, a display driving method of an electronic ink screen in a mobile terminal is provided, the mobile terminal including: the electronic ink screen comprises an electronic ink screen, a first processor and a second processor, wherein the first processor is respectively connected with the second processor and the electronic ink screen, and the second processor is also connected with the electronic ink screen; the method comprises the following steps:
determining the type of a current display scene;
if the current display scene is a first display scene, converting color image data of a first image to be displayed in the first display scene into display driving data in a soft decoding mode, and transmitting the display driving data to the electronic ink screen;
if the current display scene is a second display scene, transmitting the color image data of a second image to be displayed in the second display scene to the second processor, so that the second processor converts the received color image data into display driving data in a hard decoding mode and transmits the display driving data to the electronic ink screen;
the electronic ink screen is used for displaying images based on received display driving data, and the size of the first image to be displayed is larger than that of the second image to be displayed.
Optionally, the mobile terminal further includes: the first switch circuit is respectively connected with the first processor, the second processor and the electronic ink screen; the method further comprises the following steps:
if the current display scene is determined to be a first display scene, transmitting a first switch control signal to the first switch circuit, wherein the first switch control signal is used for indicating the first switch circuit to control the first processor to be conducted with the electronic ink screen;
and if the current display scene is determined to be a second display scene, transmitting a second switch control signal to the first switch circuit, wherein the second switch control signal is used for indicating the first switch circuit to control the second processor to be conducted with the electronic ink screen.
Optionally, the mobile terminal further includes: the second switch circuit is respectively connected with the first processor, the second processor and the power supply circuit, and the power supply circuit is also respectively connected with a power supply and the electronic ink screen; the method further comprises the following steps:
if the current display scene is determined to be the first display scene, transmitting a third switch control signal to the second switch circuit, wherein the third switch control signal is used for indicating the second switch circuit to control the power supply circuit to be conducted with the first processor;
if the current display scene is determined to be a second display scene, transmitting a fourth switch control signal to the second switch circuit, wherein the fourth switch control signal is used for indicating the second switch circuit to control the power supply circuit to be conducted with the second processor;
among the first processor and the second processor, the processor conducted with the power supply circuit is used for transmitting a power supply control signal to the power supply circuit, and the power supply control signal is used for indicating the power supply circuit to supply power to the electronic ink screen based on a power supply signal provided by the power supply.
In yet another aspect, a mobile terminal is provided, the mobile terminal including: the display driving method of the electronic ink screen in the mobile terminal comprises the following steps of storing a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the computer program to realize the display driving method of the electronic ink screen in the mobile terminal.
In yet another aspect, a computer-readable storage medium is provided, in which a computer program is stored, the computer program being loaded and executed by a processor to implement the display driving method of an electronic ink screen according to the above aspect.
In still another aspect, a computer program product containing instructions is provided, which when run on the computer, causes the computer to execute the display driving method for an electronic ink screen in a mobile terminal according to the above aspect.
To sum up, the beneficial effect that technical scheme that this application provided brought can include at least:
a mobile terminal and a display driving method of an electronic ink screen thereof are provided. Wherein the mobile terminal comprises a first processor and a second processor. The first processor can convert the color image data of the image to be displayed with larger size into display driving data in a soft decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. The second processor can convert the color image data of the image to be displayed with smaller size into display driving data in a hard decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. As for the images to be displayed with different sizes, different processors can convert image data in different decoding modes to drive the electronic ink screen to display, the display driving method provided by the application has higher flexibility.
Drawings
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 only 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 schematic structural diagram of a mobile terminal according to an embodiment of the present application;
FIG. 2 is a schematic diagram of content displayed on an electronic ink screen according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of another mobile terminal provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application;
fig. 6 is a flowchart of a display driving method for an electronic ink screen in a mobile terminal according to an embodiment of the present disclosure;
fig. 7 is a flowchart of another display driving method for an electronic ink screen in a mobile terminal according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application. As shown in fig. 1, the mobile terminal includes: the electronic ink screen module comprises an electronic ink screen 01, a first processor 02 and a second processor 03, wherein the electronic ink screen 01 can also be called an ink screen module. The first processor 02 is respectively connected with a second processor 03 and an electronic ink screen 01, and the second processor 03 is also connected with the electronic ink screen 01.
The first processor 02 is configured to, if it is determined that the current display scene is the first display scene, convert color image data of a first image to be displayed in the first display scene into display driving data in a soft decoding manner, and transmit the display driving data to the electronic ink screen 01. And is configured to transmit color image data of a second image to be displayed in the second display scene to the second processor 03 if it is determined that the current display scene is the second display scene.
The second processor 03 is configured to convert the received color image data into display driving data in a hard decoding manner, and transmit the display driving data to the electronic ink screen 01.
The electronic ink screen 01 is used to display an image based on the received display driving data.
And the size of the first image to be displayed is larger than that of the second image to be displayed. That is, the number of the pixels of the electronic ink screen 01 that need to be lit for displaying the first image to be displayed is greater than the number of the pixels of the second image to be displayed that need to be lit.
For example, if the number of pixels that need to be lit up by the electronic ink screen 01 to display the first image to be displayed is equal to the total number of pixels included in the electronic ink screen 01, the operation of the electronic ink screen 01 to display the first image to be displayed may be referred to as an overall refresh. The number of pixels required to be lit up by the electronic ink screen 01 to display the second image to be displayed is less than the total number of pixels included in the electronic ink screen 01, and the operation of the electronic ink screen 01 to display the second image to be displayed may be referred to as local refresh.
In summary, the present application provides a mobile terminal, which includes a first processor and a second processor. The first processor can convert the color image data of the image to be displayed with larger size into display driving data in a soft decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. The second processor can convert the color image data of the image to be displayed with smaller size into display driving data in a hard decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. As for the images to be displayed with different sizes, different processors can convert image data in different decoding modes to drive the electronic ink screen to display, the flexibility of driving the electronic ink screen to display is higher in the mobile terminal provided by the embodiment of the application.
Alternatively, the color image data may refer to three primary color data using red (R), green (G), and blue (B) as primary colors, and may be referred to as RGB data for short.
Alternatively, the display driving data may refer to image data obtained by converting RGB data, and the display driving data may also be referred to as Timing Control (TCON) data. The electronic ink screen 01 generally comprises a display driving circuit and an ink screen module, the display driving circuit is connected with the ink screen module, and the display driving circuit is used for driving the ink screen module to display images based on received display driving data. For example, the ink panel module generally includes a plurality of pixels, and the display driving circuit may determine the position of a target pixel to be lit and the gray scale value to be transmitted to the target pixel based on the display driving data, and then transmit the corresponding gray scale value to the target pixel to light the target pixel. After all the target pixel points required to be lightened are lightened, an image can be displayed on the ink screen module.
In addition, since the display driving circuit drives the ink screen module to display based on the display driving data, the timing of the display driving data should match the timing that can be processed by the display driving circuit. In other words, the display driving data actually refers to data that can be processed by a display driving circuit included in the electronic ink screen.
Alternatively, the display driving data may include gray scale image data, which is gray scale data obtained by dividing a logarithmic relationship between black and white into a plurality of gray scale levels. For example, the grayscale image data may generally include 256 grayscale levels, with a grayscale value of 255 indicating black and a grayscale value of 0 indicating white.
In this embodiment, the first processor 02 may be a communication processor including a Central Processing Unit (CPU) and a Graphics Processing Unit (GPU). Soft decoding may refer to decoding by software by the CPU.
In the embodiment of the present application, the hard decoding may refer to decoding using a hardware circuit, and the CP U resource is not occupied. For example, the hardware circuit may be a digital signal processing (DS P) and the DSP may be an electronic ink screen display controller of specification "S1D 13521". As such, the second processor 03 may also be referred to as a Digital Signal Processor (DSP). The hard decoding may mean that the DSP directly decodes the color image data to obtain the display driving data on the premise that the DSP does not occupy CPU resources. The second processor 03 may also be referred to as an electronic ink screen controller.
Because the processing capacity of the CPU is generally strong, the CPU processes the color image data in a soft decoding manner, and the display smoothness of the electronic ink screen 01 can be improved. Therefore, in display scenes such as page turning and screen switching, the first processor 02 can process the color image data in a soft decoding manner, so as to ensure that better experience is brought to users. Since hardware circuits such as "DSP" generally have an acceleration function, and can perform fast parallel processing on data of multiple channels, the second processor 03 processes color image data in a hard decoding manner, so that fast determination of the position of an individual pixel in the electronic ink screen 01 can be achieved, and the electronic ink screen 01 can specifically refresh the individual pixel. Thus, the first processor 02 is generally used to drive the electronic ink screen 01 to perform a global refresh, and the second processor 03 is generally used to drive the electronic ink screen 01 to perform a local refresh.
Based on the above introduction of the advantages of the first processor 02 and the second processor 03, it can be seen that in the embodiment of the present application, the first processor 02 processes the image data of the image to be displayed with a relatively large size in a soft decoding manner, and the second processor 03 processes the image data of the image to be displayed with a relatively small size in a hard decoding manner, so that on the premise of improving the flexibility of the display driving, the electronic ink screen 01 can display a relatively clear large-size image and can achieve the effect of fast local refreshing. That is, the requirements of the electronic ink screen 01 on the display speed and the special scenes (such as partially refreshed handwriting scenes) are met. The advantages of soft decoding and hard decoding are combined, and the product competitiveness of the mobile terminal is effectively improved.
As can be seen from the above description, in the embodiment of the present application, the second display scene may include: and displaying the scene by handwriting. In a handwriting display scene, the refresh operation performed by the electronic ink screen 01 is generally a local refresh. By processing the image to be displayed in the handwriting display scene by the second processor 03 in a hard decoding manner, the reliability of the local refresh can be ensured.
Optionally, in this embodiment of the application, the first processor 02 may be further configured to determine, in response to the handwriting touch instruction, that the current display scene is a handwriting display scene.
For example, the handwriting touch instruction may be a touch instruction for a handwriting trigger control. That is, a handwriting trigger control may be configured on the mobile terminal, and when the user touches the handwriting trigger control, the first processor 02 may reliably determine that the current display scene is a handwriting display scene, that is, the second display scene. The handwriting trigger control may be a physical key arranged on any side (e.g., right side) of the mobile terminal, or a virtual key arranged on the electronic ink screen 01 of the mobile terminal. It is understood that the setting position of the handwriting trigger control should be a position convenient for the user to touch.
For another example, the handwriting touch instruction may be an instruction of the user to draw a specified content on the electronic ink screen 01, that is, the user may trigger the first processor 02 to determine the current display scene by drawing the specified content on the electronic ink screen 01. The designated content may be configured in the mobile terminal directly at the time of shipment of the mobile terminal, or may be a content previously appointed by the user with the mobile terminal. For example, the specified content may be: an "S" pattern.
The above is only an alternative way to schematically illustrate the handwriting touch instruction, and any touch instruction that can trigger the first processor 02 to determine that the current display scene is the handwriting display scene may be applied in the present application.
It should be noted that "handwriting" in the handwriting display scene is not limited to the user directly writing with his or her hand, and may be the user writing on the electronic ink screen 01 using a writing device such as a stylus.
Optionally, if the first processor 02 does not receive the handwriting touch instruction, it may be directly determined that the current display scene is the first display scene. Alternatively, the first processor 02 may also determine the current display scene directly based on the size of the color image data corresponding to the current image to be displayed.
For example, referring to fig. 2, if at a certain time, the electronic ink screen 01 needs to be switched from the historical image a to the image B for display, the first processor 02 may determine that the image B needs to be completely displayed by comparing the color image data of the image B with the color image data of the historical image a, and the image B needs to be entirely refreshed on the electronic ink screen 01, so the first processor 02 may determine that the image B is the first image to be displayed, and accordingly, the display scene displaying the image B is the first display scene.
For another example, with reference to fig. 2, if the electronic ink screen 01 needs to be switched from the historical image a to the image C for display at a certain time, the first processor 02 may determine that the image C needs to be displayed by comparing the color image data of the image C with the color image data of the historical image a, and the image C needs to be displayed by partially refreshing the electronic ink screen 01, so the first processor 02 may determine that the image C is the second image to be displayed, and accordingly, the display scene displaying the image C is the second display scene. Also, as can be seen with reference to fig. 2, the image C shown may be the user-drawn content "LOVE".
Optionally, the second display scene may include, in addition to the handwriting display scene: when the electronic ink screen 01 is in a split-screen display state, a display scene displayed in a split-screen area is displayed.
Fig. 3 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application. As shown in fig. 3, the mobile terminal may further include: the first switch circuit 04. The first switch circuit 04 may be connected to the first processor 02, the second processor 03, and the electronic ink screen 01, respectively. That is, referring to fig. 3, the first switch circuit 04 may be connected in series between the first processor 02 and the electronic ink screen 01, and between the second processor 03 and the electronic ink screen 01, to control on/off between the first processor 02 and the electronic ink screen 01, and on/off between the second processor 03 and the electronic ink screen 01.
The first processor 02 may be further configured to transmit a first switch control signal to the first switch circuit 04 if it is determined that the current display scene is the first display scene, and transmit a second switch control signal to the first switch circuit 04 if it is determined that the current display scene is the second display scene.
The first switch circuit 04 may be configured to control the first processor 02 to be electrically connected to the electronic ink panel 01 in response to a first switch control signal, and may control the second processor 03 to be electrically connected to the electronic ink panel 01 in response to a second switch control signal.
When the first processor 02 is connected to the electronic ink panel 01, the first switch circuit 04 controls the second processor 03 to be disconnected from the electronic ink panel 01. Similarly, when the second processor 03 is connected to the electronic ink screen 01, the first switch circuit 04 controls the first processor 02 to be disconnected from the electronic ink screen 01. That is, in the current display scenario, the first switch circuit 04 may control only one of the first processor 02 and the second processor 03 to establish a connection with the electronic ink screen 01 under the control of the first processor 02. As can be seen from the description of the embodiment in fig. 1, the processor connected to the electronic ink panel 01 needs to convert the color image data into the display driving data in the current display scene.
For example, assuming that the current display scene is the first display scene, first, the first processor 02 may transmit a first switch control signal to the first switch circuit 04, so that the first switch circuit 04 turns on the first processor 02 and the electronic ink screen 01, and disconnects the second processor 03 and the electronic ink screen 01. Then, the first processor 02 may convert the color image data of the first image to be displayed in the first display scene into display driving data in a soft decoding manner, and reliably transmit the display driving data to the electronic ink screen 01 through the first switch circuit 04, so as to allow the electronic ink screen 01 to display the display data.
For another example, assuming that the current display scene is the second display scene, first, the first processor 02 may transmit the second switch control signal to the first switch circuit 04, so that the first switch circuit 04 turns on the second processor 03 and the electronic ink screen 01, and disconnects the first processor 02 and the electronic ink screen 01. Then, the first processor 02 may transmit the color image data of the second image to be displayed in the second display scene to the second processor 03, so that the second processor 03 converts the color image data into display driving data in a hard decoding manner, and reliably transmits the display driving data to the electronic ink panel 01 through the first switch circuit 04, so as to be displayed by the electronic ink panel 01.
By arranging the first switch circuit 04 in the mobile terminal and arranging the first processor 02 to control the first switch circuit 04 to execute the operations described in the above embodiments, the problem that when one of the first processor 02 and the second processor 03 transmits data to the electronic ink screen 01, the other processor transmits the data by mistake, which results in the phenomenon that the electronic ink screen 01 receives different display data and works by mistake can be avoided. In other words, the reliability of driving the electronic ink panel 01 to display can be ensured, the occurrence of signal crosstalk can be avoided, and the display quality can be ensured.
Fig. 4 is a schematic structural diagram of another mobile terminal according to an embodiment of the present application. As shown in fig. 4, the mobile terminal may further include: a second switching circuit 05 and a power supply circuit 06. The second switch circuit 05 may be connected to the first processor 02, the second processor 03, and the power supply circuit 06, respectively. The power supply circuit 06 can also be connected with a power supply (not shown in the figure) and the electronic ink screen 01 respectively.
The first processor 02 may be further configured to transmit a third switch control signal to the second switch circuit 05 if it is determined that the current display scene is the first display scene, and transmit a fourth switch control signal to the second switch circuit 05 if it is determined that the current display scene is the second display scene.
The second switch circuit 05 may be configured to control the power supply circuit 06 to conduct with the first processor 02 in response to a third switch control signal, and to control the power supply circuit 06 to conduct with the second processor 03 in response to a fourth switch control signal.
The first processor 02 and the second processor 03 can also be used for transmitting a power supply control signal to the power supply circuit 06 after being conducted with the power supply circuit 06.
The power supply circuit 06 may be configured to supply power to the electronic ink screen 01 based on a power supply signal provided by a power supply after receiving the power supply control signal.
When the power supply circuit 06 is turned on, the power supply circuit 06 is disconnected from the second processor 03. Similarly, when the power supply circuit 06 is connected to the second processor 03, the power supply circuit 06 is disconnected from the first processor 02. That is, in the current display scene, the second switch circuit 06 may control the power supply circuit 06 to establish a connection with only one of the first processor 02 and the second processor 03 under the control of the first processor 02. As can be seen from the embodiment described in conjunction with fig. 1, the processor connected to the power supply circuit 06 is a processor for converting image data in the current display scene. In other words, in the current display scenario, the power supply circuit 06 is configured to supply power to the electronic ink screen 01 under the control of the processor that converts the image data.
For example, assuming that the current display scene is the first display scene, the first processor 02 may transmit the third switch control signal to the second switch circuit 05, so that the second switch circuit 05 turns on the power supply circuit 06 with the first processor 02 and turns off the power supply circuit 06 with the second processor 03. Then, the first processor 02 may reliably transmit a power supply control signal to the power supply circuit 06 to control the power supply circuit 06 to supply power to the electronic ink screen 01. In addition, the first processor 02 may also convert the color image data of the first image to be displayed in the first display scene into display driving data in a soft decoding manner, and reliably transmit the display driving data to the electronic ink screen 01 through the first switch circuit 04, so as to be displayed by the electronic ink screen 01. That is, the electronic ink screen 01 can perform normal display under the control of the power supply circuit 06 based on the power supply control signal transmitted from the first processor 02 and under the display driving data transmitted from the first processor 02.
For example, assuming that the current display scene is the second display scene, the first processor 02 may transmit a fourth switching control signal to the second switching circuit 05, so that the second switching circuit 05 turns on the power supply circuit 06 and the second processor 03, and disconnects the power supply circuit 06 and the first processor 02. And, the first processor 02 may transmit color image data of the second image to be displayed to the second processor 03. Then, the second processor 03 may reliably transmit a power supply control signal to the power supply circuit 06 to control the power supply circuit 06 to supply power to the electronic ink screen. Moreover, the second processor 03 may also convert the color image data of the second image to be displayed into display driving data in a hard decoding manner, and reliably transmit the display driving data to the electronic ink screen 01 through the first switch circuit 04, so as to display the electronic ink screen 01. That is, the electronic ink screen 01 can perform normal display under the control of the power supply circuit 06 based on the power supply control signal transmitted from the second processor 03 and under the display driving data transmitted from the second processor 03.
By providing the second switch circuit 05 in the mobile terminal and providing the first processor 02 to control the second switch circuit 05 to perform the operations described in the above embodiments, the driving reliability for the electronic ink screen can be ensured.
Alternatively, the power supply circuit 06 described in this embodiment of the present application may be referred to as an ink-screen power supply system, and may include an electronic device that processes a power supply signal, such as an amplifier, a rectifier, and a filter.
Optionally, fig. 5 is a schematic structural diagram of another mobile terminal provided in the embodiment of the present application. As can be seen with reference to fig. 5, the mobile terminal may further include: the interface conversion circuit 07.
The interface conversion circuit 07 and the first processor 02 may be connected by a Mobile Industry Processor Interface (MIPI). The interface conversion circuit 07 and the electronic ink screen 01 may be connected by a Display Pixel Interface (DPI). As can be seen from fig. 3 and 4, the interface conversion circuit 07 and the electronic ink panel 01 are indirectly connected through the first switch circuit 04.
The interface conversion circuit 07 may be configured to convert the display driving data sent by the first processor 02 from the MIPI format to the DPI format, and then transmit the converted display driving data to the electronic ink screen 01. Thus, the interface conversion circuit 07 may also be called an interface system of MIPI to DPI.
Because the data transmitted to other devices by the first processor 02 is generally in an MIPI format, and the data which can be processed by the electronic ink screen 01 is generally in a DPI format, the display driving data transmitted by the first processor 02 is converted into the data which is matched with the data processed by the electronic ink screen 01 by the interface conversion circuit 07, and then the data is transmitted to the electronic ink screen 01, so that the reliability of the image display of the electronic ink screen 01 based on the display driving data can be ensured, and the display quality is ensured.
In addition, referring to fig. 5, it can be further seen that the first processor 02 and the second processor 03 may be connected through MIPI, and the second processor 03 may be connected with the electronic ink screen 01 through DPI. The second processor 03 may be configured to directly convert the received MIPI-formatted color image data into DPI-formatted display driving data, and transmit the DPI-formatted display driving data to the electronic ink screen 01. In this way, it is no longer necessary to provide an interface conversion circuit 07 between the second processor 03 and the electronic ink screen 01. As can be seen from fig. 3 and 4, the second processor 03 and the electronic ink screen 01 are indirectly connected through the first switch circuit 04.
As can be seen from fig. 5, in the mobile terminal provided in the present application, the structure for driving the electronic ink screen 01 to display includes a power control circuit (i.e., a power supply circuit) and two image data processing links. One of the links is a processing link constructed by the first processor 02, the interface conversion circuit 07 and the power supply circuit 06. In this link, the first processor 02 may process the image data in a soft decoding manner to drive the electronic ink screen 01 to display, and may reliably transmit a power supply control signal to the power supply circuit 06 to drive the power supply circuit 06 to supply power to the electronic ink screen 01. The other link is a processing link built by the second processor 03 and the power supply circuit 06. In the link, the second processor 03 may process the image data in a hard decoding manner to drive the electronic ink screen 01 to display, and may reliably transmit the power supply control signal to the power supply circuit 06 to drive the power supply circuit 06 to supply power to the electronic ink screen 01. In addition, the two links can independently perform the above functions under the control of the first switch circuit 04 and the second switch circuit 05.
It should be noted that, in addition to the functions described in the above embodiments, the first processor 02 may also perform some other processing functions of the mobile terminal, such as a radio frequency function for communicating with an external device.
In summary, the present application provides a mobile terminal, which includes a first processor and a second processor. The first processor can convert the color image data of the image to be displayed with larger size into display driving data in a soft decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. The second processor can convert the color image data of the image to be displayed with smaller size into display driving data in a hard decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. As for the images to be displayed with different sizes, different processors can convert image data in different decoding modes to drive the electronic ink screen to display, the flexibility of driving the electronic ink screen to display is higher in the mobile terminal provided by the embodiment of the application.
Fig. 6 is a flowchart of a display driving method of an electronic ink screen in a mobile terminal according to an embodiment of the present application. Referring to fig. 1, the mobile terminal may include: the electronic ink screen comprises an electronic ink screen 01, a first processor 02 and a second processor 03, wherein the first processor 02 can be respectively connected with the second processor 03 and the electronic ink screen 01, and the second processor 03 can also be connected with the electronic ink screen 01. As shown in fig. 6, the method includes:
And 603, if the current display scene is a second display scene, transmitting the color image data of a second image to be displayed in the second display scene to a second processor, so that the second processor converts the received color image data into display driving data in a hard decoding mode and transmits the display driving data to the electronic ink screen.
The electronic ink screen can be used for displaying images based on received display driving data, and the size of the first image to be displayed is larger than that of the second image to be displayed.
To sum up, in the method, the first processor may convert color image data of an image to be displayed with a large size into display driving data in a soft decoding manner, and then send the display driving data to the electronic ink screen to drive the electronic ink screen to display the image to be displayed. And the second processor can convert the color image data of the image to be displayed with smaller size into display driving data in a hard decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. The display driving method provided by the embodiment of the application has higher flexibility because different processors can convert image data in different decoding modes for images to be displayed with different sizes so as to drive the electronic ink screen to display.
Optionally, as can be seen with reference to fig. 5, the mobile terminal may further include: the circuit comprises a first switch circuit 04, a second switch circuit 05, a power supply circuit 06 and an interface conversion circuit 07. In conjunction with the mobile terminal shown in fig. 4, fig. 7 is a flowchart illustrating another display driving method of an electronic ink screen in the mobile terminal. As shown in fig. 7, the method may include:
and 701, determining the type of the current display scene.
Optionally, in this embodiment of the application, the first processor may flexibly determine the type of the current display scene based on the display scene touch instruction or the type of the image to be displayed that needs to be displayed currently. The determining method may refer to the description of the device-side embodiment, and is not described herein again.
If the first processor determines that the current display scene is the first display scene, the following steps 702 to 705 may be performed. If the first processor determines that the current display scene is the second display scene, the following steps 707 to 708 may be continuously performed. And the size of the first image to be displayed in the first display scene is larger than that of the second image to be displayed in the second display scene.
Step 702 transmits a first switch control signal to a first switch circuit.
The first switch control signal may be used to instruct the first switch circuit to control the first processor to be connected to the electronic ink screen, and instruct the first switch circuit to control the second processor to be disconnected from the electronic ink screen.
Step 703, converting the color image data of the first image to be displayed in the first display scene into display driving data by using a soft decoding method, and transmitting the display driving data to the interface conversion circuit.
Optionally, the first processor may send the display driving data to the interface conversion circuit in an MIPI format, and the interface conversion circuit converts the display driving data from the MIPI format to a DPI format, and then transmits the display driving data to the electronic ink screen to drive the electronic ink screen to display reliably.
In step 702 and fig. 5, the interface conversion circuit transmits the converted DPI display driving data to the electronic ink screen via the first switch circuit.
The third switch control signal may be used to instruct the second switch circuit to control the power supply circuit to be connected to the first processor, and instruct the second switch circuit to control the power supply circuit to be disconnected from the second processor.
The power supply control signal can be used for instructing the power supply circuit to supply power to the electronic ink screen based on a power supply signal provided by the connected power supply.
The second switch control signal may be used to instruct the first switch circuit to control the second processor to be connected to the electronic ink screen, and instruct the first switch circuit to control the first processor to be disconnected from the electronic ink screen.
The second processor may be configured to convert the received color image data into display driving data in a hard decoding manner, and transmit the display driving data to the electronic ink screen. In addition, as can be seen from the structure shown in fig. 5, the second processor converts the received MIPI-formatted color image data into DPI-formatted display driving data, and then transmits the DPI-formatted display driving data to the electronic ink screen via the first switch circuit.
The fourth switch control signal may be used to instruct the second switch circuit to control the power supply circuit to be connected to the second processor, and to control the power supply circuit to be disconnected from the first processor. After the power supply circuit is conducted with the second processor, the second processor can reliably transmit the power supply control signal to the power supply circuit. That is, the power supply circuit may supply power to the electronic ink screen based on the power supply control signal transmitted by the second processor and the power supply signal provided by the connected power supply.
It should be noted that, for implementation of each step in the method-side embodiment, reference may be made to the description of the apparatus-side embodiment, and details are not described here again.
It should be further noted that, the sequence of the steps of the display driving method for an electronic ink screen in a mobile terminal provided in the embodiment of the present application may be appropriately adjusted, and the steps may also be correspondingly increased or decreased according to the situation. For example, step 703 and step 704 may be performed simultaneously. Those skilled in the art can easily conceive of various methods within the technical scope of the present disclosure, and therefore, the detailed description is omitted.
In summary, in the method, a first processor may convert color image data of an image to be displayed with a large size into display driving data in a soft decoding manner, and then send the display driving data to an electronic ink screen to drive the electronic ink screen to display the image to be displayed. And the second processor can convert the color image data of the image to be displayed with smaller size into display driving data in a hard decoding mode and then send the display driving data to the electronic ink screen so as to drive the electronic ink screen to display the image to be displayed. The display driving method provided by the embodiment of the application has higher flexibility because different processors can convert image data in different decoding modes for images to be displayed with different sizes so as to drive the electronic ink screen to display.
An embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and the computer program is loaded by a processor and executes a display driving method for an electronic ink screen in a mobile terminal, such as the display driving method for the electronic ink screen in the mobile terminal shown in fig. 6 or fig. 7, provided by the foregoing embodiment.
Embodiments of the present application further provide a computer program product including instructions, which when the computer program product runs on a computer, cause the computer to execute the method for driving display of an electronic ink screen in a mobile terminal provided in the foregoing method embodiments, for example, the method for driving display of an electronic ink screen in a mobile terminal shown in fig. 6 or fig. 7.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
It should be understood that the terms "first," "second," and the like, herein are used for distinguishing between similar elements and items that have substantially the same function or similar functionality, and it should be understood that "first," "second," and "n" do not have a logical or temporal dependency or limitation of quantity or order of execution. For example, a first processor may be referred to as a second processor, and similarly, a second processor may be referred to as a first processor, without departing from the scope of the various described examples.
The above description is only exemplary of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A mobile terminal, characterized in that the mobile terminal comprises: the electronic ink screen comprises an electronic ink screen, a first processor and a second processor, wherein the first processor is respectively connected with the second processor and the electronic ink screen, and the second processor is also connected with the electronic ink screen;
the first processor is configured to, if it is determined that the current display scene is the first display scene, convert color image data of a first image to be displayed in the first display scene into display driving data in a soft decoding manner, and transmit the display driving data to the electronic ink screen; if the current display scene is determined to be a second display scene, transmitting color image data of a second image to be displayed in the second display scene to the second processor, wherein the size of the first image to be displayed is larger than that of the second image to be displayed;
the second processor is used for converting the received color image data into display driving data in a hard decoding mode and transmitting the display driving data to the electronic ink screen;
the electronic ink screen is used for displaying images based on the received display driving data.
2. The mobile terminal of claim 1, wherein the mobile terminal further comprises: the first switch circuit is respectively connected with the first processor, the second processor and the electronic ink screen;
the first processor is further configured to transmit a first switch control signal to the first switch circuit if it is determined that the current display scene is the first display scene; if the current display scene is determined to be the second display scene, transmitting a second switch control signal to the first switch circuit;
the first switch circuit is used for responding to the first switch control signal and controlling the first processor to be conducted with the electronic ink screen; and responding to the second switch control signal, and controlling the second processor to be conducted with the electronic ink screen.
3. The mobile terminal according to claim 1 or 2, characterized in that the mobile terminal further comprises: the second switch circuit is respectively connected with the first processor, the second processor and the power supply circuit, and the power supply circuit is also respectively connected with a power supply and the electronic ink screen;
the first processor is further configured to transmit a third switch control signal to the second switch circuit if it is determined that the current display scene is the first display scene; if the current display scene is determined to be the second display scene, transmitting a fourth switch control signal to the second switch circuit;
the second switch circuit is used for responding to the third switch control signal and controlling the power supply circuit to be conducted with the first processor; and in response to the fourth switch control signal, controlling the power supply circuit to be conducted with the second processor;
the first processor and the second processor are both used for transmitting a power supply control signal to the power supply circuit after being conducted with the power supply circuit;
and the power supply circuit is used for supplying power to the electronic ink screen based on a power supply signal provided by the power supply after receiving the power supply control signal.
4. The mobile terminal according to claim 1 or 2, characterized in that the mobile terminal further comprises: the interface conversion circuit is connected with the first processor through a Mobile Industry Processor Interface (MIPI), and is connected with the electronic ink screen through a Display Pixel Interface (DPI);
the interface conversion circuit is used for converting the display driving data sent by the first processor from an MIPI format to a DPI format and then transmitting the display driving data to the electronic ink screen.
5. The mobile terminal of claim 1 or 2, wherein the first processor and the second processor are connected by MIPI, and the second processor and the electronic ink screen are connected by DPI;
and the second processor is also used for converting the received color image data in the MIPI format into display driving data in a DPI format and then transmitting the display driving data to the electronic ink screen.
6. The mobile terminal according to claim 1 or 2, wherein the second display scene comprises: and displaying the scene by handwriting.
7. The mobile terminal of claim 6, wherein the first processor is further configured to determine that the current display scene is a handwritten display scene in response to the handwritten touch command.
8. A display driving method of an electronic ink screen in a mobile terminal is characterized in that the mobile terminal comprises: the electronic ink screen comprises an electronic ink screen, a first processor and a second processor, wherein the first processor is respectively connected with the second processor and the electronic ink screen, and the second processor is also connected with the electronic ink screen; the method comprises the following steps:
determining the type of a current display scene;
if the current display scene is a first display scene, converting color image data of a first image to be displayed in the first display scene into display driving data in a soft decoding mode, and transmitting the display driving data to the electronic ink screen;
if the current display scene is a second display scene, transmitting the color image data of a second image to be displayed in the second display scene to the second processor, so that the second processor converts the received color image data into display driving data in a hard decoding mode and transmits the display driving data to the electronic ink screen;
the electronic ink screen is used for displaying images based on received display driving data, and the size of the first image to be displayed is larger than that of the second image to be displayed.
9. The method according to claim 8, wherein the mobile terminal further comprises: the first switch circuit is respectively connected with the first processor, the second processor and the electronic ink screen; the method further comprises the following steps:
if the current display scene is determined to be a first display scene, transmitting a first switch control signal to the first switch circuit, wherein the first switch control signal is used for indicating the first switch circuit to control the first processor to be conducted with the electronic ink screen;
and if the current display scene is determined to be a second display scene, transmitting a second switch control signal to the first switch circuit, wherein the second switch control signal is used for indicating the first switch circuit to control the second processor to be conducted with the electronic ink screen.
10. The method according to claim 8 or 9, wherein the mobile terminal further comprises: the second switch circuit is respectively connected with the first processor, the second processor and the power supply circuit, and the power supply circuit is also respectively connected with a power supply and the electronic ink screen; the method further comprises the following steps:
if the current display scene is determined to be the first display scene, transmitting a third switch control signal to the second switch circuit, wherein the third switch control signal is used for indicating the second switch circuit to control the power supply circuit to be conducted with the first processor;
if the current display scene is determined to be a second display scene, transmitting a fourth switch control signal to the second switch circuit, wherein the fourth switch control signal is used for indicating the second switch circuit to control the power supply circuit to be conducted with the second processor;
among the first processor and the second processor, the processor conducted with the power supply circuit is used for transmitting a power supply control signal to the power supply circuit, and the power supply control signal is used for indicating the power supply circuit to supply power to the electronic ink screen based on a power supply signal provided by the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110553392.4A CN115376468A (en) | 2021-05-20 | 2021-05-20 | Mobile terminal and display driving method of electronic ink screen thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110553392.4A CN115376468A (en) | 2021-05-20 | 2021-05-20 | Mobile terminal and display driving method of electronic ink screen thereof |
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| Publication Number | Publication Date |
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| CN115376468A true CN115376468A (en) | 2022-11-22 |
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| CN202110553392.4A Pending CN115376468A (en) | 2021-05-20 | 2021-05-20 | Mobile terminal and display driving method of electronic ink screen thereof |
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| Country | Link |
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| CN (1) | CN115376468A (en) |
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- 2021-05-20 CN CN202110553392.4A patent/CN115376468A/en active Pending
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