CN113015014A - Zoom display method, display terminal and storage medium - Google Patents
Zoom display method, display terminal and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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Abstract
The application discloses a zooming display method, a display terminal and a storage medium, and relates to the technical field of computers. The method can determine a target scaling according to the obtained actual character size of the characters in the display page and the target character size, and scales the display page according to the target scaling. According to the method provided by the embodiment of the application, when the display page is adjusted, the target scaling determined according to the actual character size and the target character size is adjusted, so that the flexibility of adjusting the character size is higher. In addition, the target character size is determined according to the target viewing distance and the target vision of the user, so that after the display page is zoomed, the size of the characters displayed in the display page can meet the browsing requirement of the user, and the user experience is better.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a zoom display method, a display terminal, and a storage medium.
Background
A browser may be installed in the television set and may be used to display web pages.
In the related art, when a user needs to adjust the display scale of the web page, an adjustment operation may be triggered, and the television displays a plurality of zoom options in a display interface in response to the adjustment operation, where each zoom option corresponds to one zoom scale. When the television detects the selection operation of the user for a certain zooming option, the webpage can be adjusted according to the zooming ratio corresponding to the zooming option.
However, when the display scale of the web page is adjusted, the adjustment can be performed only according to the zoom scale provided by the television, and the adjustment flexibility is poor.
Disclosure of Invention
The application provides a zooming display method, a display terminal and a storage medium, which can avoid the problem that the adjustment flexibility is poor because the adjustment can be only carried out according to the zooming ratio provided by a television when the display ratio of a webpage is adjusted in the related technology. The technical scheme is as follows:
in one aspect, a zoom display method is provided, which is applied to a display terminal, and the method includes:
determining the actual character size of characters in a display page;
acquiring a target character size, wherein the target character size is determined according to a target viewing distance and a target vision of a user;
determining a target scaling according to the actual character size and the target character size;
and zooming the display page according to the target zooming scale.
In another aspect, a display terminal is provided, which includes: a display and a processor; the processor is configured to:
determining an actual character size of characters in a display page of the display;
acquiring a target character size, wherein the target character size is determined according to a target viewing distance and a target vision of a user;
determining a target scaling according to the actual character size and the target character size;
and zooming the display page according to the target zooming scale.
In yet another aspect, a computer-readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the zoom display method as provided in the above aspect.
The beneficial effect that technical scheme that this application provided brought includes at least:
the method can determine a target scaling ratio according to the obtained actual character size of characters in a display page and the target character size, and scales the display page according to the target scaling ratio. According to the method provided by the embodiment of the application, when the display page is adjusted, the target scaling determined according to the actual character size and the target character size is adjusted, so that the flexibility of adjusting the character size is higher. In addition, the target character size is determined according to the target viewing distance and the target vision of the user, so that after the display page is zoomed, the size of the characters displayed in the display page can meet the browsing requirement of the user, and the user experience is better.
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 diagram of an implementation environment of a zoom display method according to an embodiment of the present application;
FIG. 2 is a flowchart of a zoom display method according to an embodiment of the present application;
FIG. 3 is a flow chart of another zoom display method provided by an embodiment of the present application;
FIG. 4 is a schematic view of a vision selection interface provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of a distance input interface provided by an embodiment of the present application;
FIG. 6 is a schematic diagram of a relationship between a height and a distance of a character according to an embodiment of the present application;
FIG. 7 is a flowchart of a method for determining a target character size according to an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of a preview interface provided by an embodiment of the present application;
fig. 9 is a schematic structural diagram of a display terminal according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of another display terminal provided in 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.
Please refer to fig. 1, which illustrates an implementation environment of a zoom display method according to an embodiment of the present application. The zoom display method may be applied to the display terminal 10. Referring to fig. 1, the display terminal 10 may be a smart television, or the display device 10 may be a projector, and the embodiment of the present application does not limit the type of the display terminal 10.
Fig. 2 is a flowchart of a zoom display method according to an embodiment of the present application. The method may be applied to the display terminal 10 shown in fig. 1, and as can be seen with reference to fig. 2, the method may include:
In the embodiment of the application, a plurality of characters can be displayed in the display page, and the plurality of characters can be the same in size. The display terminal may determine an actual character size of a character in the display page according to any one of the plurality of characters displayed in the display page. Wherein the actual character size may be used to characterize the actual size of the characters displayed in the display page. For example, the actual character size may be the height of the characters displayed in the display page.
The target character size may be determined according to a target viewing distance and a target vision of the user. Wherein the target character size may be positively correlated with the target viewing distance and negatively correlated with the target vision of the user. That is, the larger the target viewing distance, the larger the target character size; the smaller the target viewing distance, the smaller the target character size. The better the target vision of the user, the smaller the target character size; the worse the user's target vision, the larger the target character size.
And step 203, determining a target scaling according to the actual character size and the target character size.
In this embodiment, the display terminal may determine the ratio of the obtained target character size to the actual character size as the target scaling.
And step 204, zooming the display page according to the target zooming scale.
In the embodiment of the application, after the display page is zoomed by the display terminal according to the target zoom scale, the characters displayed in the display page can also be zoomed along with the zoom of the display page, so that the size of the characters displayed in the display page can be suitable for a user to view, and the problem of poor user experience caused by small or large characters displayed in the display page is avoided.
In summary, the embodiment of the present application provides a scaling display method, which may determine a target scaling ratio according to an actual character size of an acquired character in a display page and a target character size, and scale the display page according to the target scaling ratio. According to the method provided by the embodiment of the application, when the display page is adjusted, the target scaling determined according to the actual character size and the target character size is adjusted, so that the flexibility of adjusting the character size is higher. In addition, the target character size is determined according to the target viewing distance and the target vision of the user, so that after the display page is zoomed, the size of the characters displayed in the display page can meet the browsing requirement of the user, and the user experience is better.
Fig. 3 is a flowchart of another zoom display method provided in an embodiment of the present application. The method may be applied to the display terminal 10 shown in fig. 1, and as can be seen with reference to fig. 3, the method may include:
and 301, acquiring a target viewing distance and the target vision of the user.
In the embodiment of the application, the target viewing distance and the target vision of the user can be set by the user. The vision selection interface of the display terminal can display a plurality of alternative visions, a user can trigger selection operation aiming at a target vision in the plurality of alternative visions on the vision selection interface, and the display terminal responds to the selection operation to acquire the target vision of the user. Or, the user may input the target vision in the vision selection interface, and the display terminal may further obtain the target vision input by the user.
The user can input the target viewing distance in the distance input interface of the display terminal, and the display terminal can further obtain the target viewing distance input by the user. Or a plurality of candidate viewing distances may be displayed in a distance input interface of the display terminal, a user may trigger a selection operation for a target viewing distance in the plurality of candidate viewing distances on the distance input interface, and the display terminal acquires the target viewing distance in response to the selection operation.
Fig. 4 is a schematic diagram of a vision selection interface provided in an embodiment of the present application. As can be seen with reference to FIG. 4, the vision selection interface may display a plurality of alternate visuals, each of which may be represented in terms of a standard logarithmic vision and a decimal vision. For example, the first alternative vision is represented as 5.3 using standard logarithmic vision and 2.0 using decimal vision.
The user can move the focus to the area where the icon of the target vision is located through the remote control device of the display terminal, and press the confirmation key of the remote control device of the display terminal to trigger the selection operation aiming at the target vision, and the display terminal can respond to the selection operation to obtain the target vision of the user. The focus can be used for indicating the position of the current operation object of the display terminal. And if the display terminal is the intelligent television, the remote control equipment of the display terminal is a remote controller of the intelligent television.
Fig. 5 is a schematic diagram of a distance input interface according to an embodiment of the present disclosure. As can be seen with reference to fig. 5, the distance input interface may display a distance input box 01 and units of distance 02. The distance input box 01 may be used to display a target viewing distance input by a user, and the unit of the distance may be meter (m). The user may enter the target viewing distance by pressing a number key in a remote control device of the display terminal. Or, a virtual keyboard may be displayed in the display terminal, and the user may move the focus to the area where the digital icon indicated by the target viewing distance is located by using a remote control device of the display terminal, and press a confirmation key of the remote control device to input the target viewing distance. The display terminal can further acquire the target viewing distance input by the user.
For example, if the target vision selected by the user is 4.8, the target vision of the user acquired by the display terminal is 4.8, and the target viewing distance input by the user is 5m, the target viewing distance acquired by the display terminal is 5 m.
And step 302, determining a target unit character size corresponding to the target vision according to the corresponding relation between the vision and the unit character size.
In the embodiment of the present application, the display terminal may store a correspondence between the eyesight and the unit character size in advance. The correspondence between the eyesight and the unit character size can be determined empirically by a developer during the development process.
When the vision is examined, the distance between the examinee and the eye chart is usually 5m, and the vision indicated by the smallest E-letter that the examinee can see is determined as the vision of the examinee. Wherein, the size of the E-shaped character corresponding to each vision can be determined by measuring the height of the E-shaped character in the visual chart. Referring to table 1, standard logarithmic vision, decimal vision, optometric side length, and unit character size are shown. Wherein the optotype side length may be a minimum height of the character that can be seen by the examinee at a position 5m away. The unit character size may be a minimum height of a character that can be seen by the examinee at a position 1m away.
TABLE 1
For example, if the standard logarithmic vision of the subject is 5.0 and the decimal vision is 1.0, the subject can clearly see an E-character with a height of 7.27 millimeters (mm) at a position 5m away, and characters with a height of less than 7.27mm are not clearly seen. Referring to fig. 6, since the height of the character that can be seen clearly by the examinee is proportional to the distance, the unit character size of a user with a vision of 5.0 may be 7.27 ÷ 5 ═ 1.45 mm.
In the embodiment of the application, after acquiring the target vision of the user, the display terminal may determine the target unit character size corresponding to the target vision according to table 1. Assuming that the target vision of the user acquired by the display terminal is 4.8, the target unit character size corresponding to the target vision of 4.8 can be determined to be 2.3mm according to table 1.
The display terminal may determine the target character size according to the target viewing distance obtained in step 301 and the target unit character size obtained in step 302.
As an alternative implementation manner, the display terminal may directly determine the product of the target viewing distance and the target unit character size as the target character size. For example, assuming that the target viewing distance acquired by the display terminal is 5m and the target unit character size is 2.3mm, the target character size may be equal to 11.5mm, which is 2.3 × 5 mm.
As another alternative implementation, referring to fig. 7, this step 303 may include:
In the embodiment of the present application, the display terminal may determine the product of the target viewing distance and the target unit character size as the initial character size. For example, assuming that the target viewing distance acquired by the display terminal is 5m and the target unit character size is 2.3mm, the initial character size may be equal to 11.5mm, which is 2.3 × 5 mm.
In the embodiment of the application, after the initial character size of the character is acquired by the display terminal, a preview interface can be displayed in the display terminal, the preview interface can display the preview character, and the size of the preview character can be the initial character size determined according to the target viewing distance and the target unit character size. By displaying the preview character with the initial character size in the preview interface, a user can conveniently confirm whether the initial character size meets the browsing requirement of the user, and the user experience is better.
Fig. 8 is a schematic diagram of a preview interface provided in an embodiment of the present application. Referring to fig. 8, the preview character may be "display zoom text" and the preview interface display may have a size of "display zoom text" of 11.5 mm.
In the embodiment of the application, a user can trigger an adjustment operation for the initial character size in a preview interface, and the display terminal responds to the adjustment operation and adjusts the initial character size according to a preset proportion. The preset proportion may be a fixed proportion pre-stored in the display terminal.
As can be seen with reference to fig. 8, a zoom-out button 03 and a zoom-in button 04 may be displayed in the preview interface. The user can move the focus to the area where the reduction button 03 is located through the remote control device of the display terminal, and press the confirmation key of the remote control device of the display terminal to trigger the operation of adjusting the size of the initial character. The display terminal can reduce the size of the initial character according to a preset proportion each time the adjustment operation is received. The user can move the focus to the area where the enlargement button 04 is located through the remote control device of the display terminal, and press the confirmation key of the remote control device of the display terminal to perform adjustment operation of the initial character size according to the preset proportion. The display terminal can enlarge the initial character size according to a preset proportion each time the adjustment operation is received.
Or, the preview interface displays prompt information, and the prompt information can be used for prompting a user to turn down the initial character size when pressing a left direction key or an upper direction key of the remote control device, and to turn up the initial character size when pressing a right direction key or a lower direction key of the remote control device. The user triggers the adjustment operation of the initial character size by pressing the left direction key or the upper direction key of the remote control device of the display terminal, and triggers the adjustment operation of the initial character size by pressing the right direction key or the lower direction key of the remote control device of the display terminal.
And step 3034, determining the adjusted initial character size as the target character size.
The initial character size is adjusted according to the operation of the user, and the display terminal determines the adjusted initial character size as the target character size, so that the target character size can generally meet the browsing requirement of the user, and the user experience is better.
It should be noted that the display terminal provided in the embodiment of the present application also supports multi-user input, that is, multiple users can input the target viewing distance and target vision. If the target vision acquired by the display terminal is multiple, as an optional implementation manner, the display terminal may determine the worst target vision of the multiple target visions according to the multiple acquired target visions. And then, determining the size of the target character according to the worst target vision sum, so that the user with the worst vision among a plurality of users can clearly see the characters displayed on the display page, namely, the plurality of users can clearly see the characters displayed on the display page.
As another optional implementation manner, after each time the target vision input by the user is acquired, the display terminal may overwrite the previously stored target vision. If the first user selects the first target vision in the vision selection interface and inputs the target viewing distance in the distance input interface, the display terminal may determine the target character size according to the first target vision and the target viewing distance of the first user. Then, if the second user reselects the second target vision in the vision selection interface according to the own vision, the display terminal may overlay the first target vision with the second target vision, that is, the display terminal may re-determine the target character size based on the second target vision and the target viewing distance.
Similarly, when the display terminal obtains a plurality of target viewing distances, the size of the target character can be calculated by adopting the farthest target viewing distance. Or, after the display terminal acquires the target viewing distance input by the user each time, the previously stored target viewing distance may be covered.
And step 304, detecting whether the function of zooming the display page is started or not when the display page is displayed in the display interface.
In this embodiment of the present application, when a display page is displayed in a display interface in the display terminal, whether a function of zooming the display page is started may be detected, and if it is detected that the function of zooming the display page is started, the display terminal may continue to perform step 305; if the function of zooming the displayed page is detected to be closed, the display terminal does not need to execute step 305.
The display terminal provided by the embodiment of the application has the function of zooming the display page, and the display terminal can respond to the trigger operation of a user and start or close the function of zooming the display page.
For example, a switch button may be displayed in a setting interface of the display terminal, when the switch button is in an off state, a user may trigger a click operation for the switch button, and the display terminal may start a function of zooming a display page in response to the click operation. After that, the user again triggers a click operation for the toggle button, and the display terminal may close the function of zooming the display page in response to the click operation.
When the display terminal detects that the switch button is in the on state, the display terminal may determine that the function of zooming the displayed page is on, and then the display terminal may perform step 305; when the display terminal detects that the switch button is in the off state, the display terminal may determine that the function of zooming the displayed page is off, and the display terminal may not need to perform step 305.
And 305, acquiring the number of scaling independent pixels and the scaling coefficient of the character displayed in the display page.
Scaled-independent pixels (sp) are a font size unit of the Android system, and the number of scaled-independent pixels can be used to measure the size of a character. Scaling individual pixels is independent of both physical pixel density and physical pixel number. The physical pixel may be a basic unit of a display image of a display terminal.
The scaling factor may be determined based on an actual pixel density and a standard pixel density of a display of the display terminal. The actual pixel density is the number of physical pixels included per inch in the display of the display terminal. The standard pixel density may be a physical pixel density stored in the display terminal in advance, wherein the standard pixel density is typically 160 dots per inch (dpi).
Alternatively, the scaling factor may be equal to the ratio of the actual pixel density to the standard pixel density of the display terminal. If the actual pixel density is equal to 160dpi, the scaling factor obtained by the display terminal may be equal to 1. If the actual pixel density is equal to 120dpi, the scaling factor obtained by the display terminal may be equal to 0.75. If the actual pixel density is equal to 240dpi, the scaling factor obtained by the display terminal may be equal to 1.5. If the actual pixel density is equal to 320dpi, the scaling factor obtained by the display terminal may be equal to 2.
It should be noted that the Android system may allow a user to set the size of characters displayed in a display page. For example, the user may set the size of the character to a normal size, a small size, a large size, a super large size, or the like. That is, if the user does not set the size of the character displayed in the display page, the number of scaled independent pixels of the character may be the default of the display terminal. If the user sets the size of the character displayed in the display page, the number of scaled independent pixels of the character may be determined based on the size set by the user.
And step 306, determining the physical pixel number of the characters displayed in the display page according to the scaling independent pixel number and the scaling coefficient.
In the embodiment of the present application, the display terminal may store a calculation formula for scaling the number of independent pixels and the number of physical pixels in advance. After the display terminal obtains the number of scaled independent pixels and the scaling factor according to step 305, the number of physical pixels of the character can be determined directly according to a pre-stored calculation formula. The number of physical pixels of a character may refer to the number of physical pixels used by the display to display each character, i.e., the number of physical pixels contained in the display area of each character.
Optionally, the calculation formula may satisfy: px is sp × k. Where sp may be the number of scaled independent pixels, px may be the number of physical pixels, and k may be the scaling factor. For example, assuming that the number of scaling independent pixels acquired in step 305 is 14 and the scaling factor is 1, the number px of physical pixels of the character displayed in the display page may be determined to be 14 × 1 to 14 according to the above calculation formula.
Since the pixel size of each physical pixel in the display of the display terminal is not changed, the display terminal can accurately determine the actual character size of the character displayed in the display page according to the pixel size of each physical pixel and the number of the physical pixels determined in step 306. Wherein the actual character size may be a height of a character displayed in the display page.
Alternatively, the pixel size of each physical pixel may be determined according to the resolution of the display terminal and the size of the display. The resolution of the display terminal can be measured by the number of physical pixels included in the pixel row direction and the number of physical pixels included in the pixel column direction in the display.
For example, if the number of physical pixels in the display in the pixel row direction is 1920 and the number of physical pixels in the pixel column direction is 1080, the resolution of the display may be 1920 × 1080.
In the embodiment of the present application, the pixel size of each physical pixel may be equal to the size of the display terminal in the pixel row direction divided by the number of physical pixels in the pixel row direction, or may be equal to the size of the display terminal in the pixel column direction divided by the number of physical pixels in the pixel column direction.
For example, assuming that the display terminal is a 43-inch smart tv, the size of the display terminal in the pixel row direction is 965mm, and the size in the pixel column direction is 540mm, and the pixel size of each physical pixel may be equal to 965 ÷ 1920 ÷ 540 ÷ 1080 ÷ 0.5 mm.
In the embodiment of the present application, the display terminal may determine the product of the number of physical pixels and the pixel size of each physical pixel in the display of the display terminal as the actual character size of the character displayed in the display page. For example, if the number of physical pixels is 14 and the pixel size of each physical pixel is equal to 0.5mm, the actual character size of the character displayed in the display page may be equal to 14 × 0.5 — 7 mm.
The display terminal may acquire the target character size after determining the target character size.
In the embodiment of the present application, the display terminal may determine the target scaling according to the actual character size determined in step 307 and the target character size obtained in step 308.
Alternatively, the target scaling may be equal to the ratio of the target character size to the actual character size. Assuming that the determined actual character size is 7mm and the target character size is 11.5mm, the target scale determined by the display terminal may be 11.5 ÷ 7 ═ 1.64.
In this embodiment of the present application, the display terminal may store a scale database in advance, and the display terminal may store the target scaling into the scale database, where the scale database may include a plurality of alternative scaling.
In this embodiment of the present application, a user may trigger an adjustment operation for a display page, and the display terminal displays, in response to the adjustment operation, a plurality of alternative scaling ratios in the scale selection interface, where the plurality of alternative scaling ratios displayed in the scale selection interface may be obtained by the display terminal from the scale database. The plurality of alternative scales may include: target scaling. Of course, the plurality of alternative scales may also include: and displaying the default scaling pre-stored by the terminal.
Optionally, an adjustment button may be displayed in a display interface of the display terminal, and a user may move the focus to an area where the adjustment button is located through a remote control device of the display terminal, and press a confirmation key of the remote control device to trigger an adjustment operation for the display page.
And step 312, zooming the display page according to the target zooming scale.
In this embodiment of the application, the display terminal may directly zoom the display page according to the target zoom ratio determined in step 309. Or, the user may trigger a selection operation for a target scaling in the scaling database, and the display terminal zooms the display page at the target scaling in response to the selection operation.
It should be noted that, since step 310 may store the target scaling determined in step 309 in the display terminal, when the display terminal needs to scale the display page again with the target scaling, the display page may be scaled according to the target scaling in response to a selection operation triggered by the user and directed to the target scaling in the scaling database, and the above steps 301 to 310 need not to be executed again, so that the scaling efficiency is high.
It should be further noted that, the order of the steps of the method for displaying a zoom image provided by the embodiment of the present application may be appropriately adjusted, and the steps may also be increased or decreased according to the situation, for example, step 308 may be executed before step 305, and step 310 and step 311 may be deleted according to the actual situation. Any method that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application is covered by the protection scope of the present application, and thus the detailed description thereof is omitted.
In summary, the embodiment of the present application provides a scaling display method, which may determine a target scaling ratio according to an actual character size of an acquired character in a display page and a target character size, and scale the display page according to the target scaling ratio. According to the method provided by the embodiment of the application, when the display page is adjusted, the target scaling determined according to the actual character size and the target character size is adjusted, so that the flexibility of adjusting the character size is higher. Moreover, the target character size is determined according to the target viewing distance and the target eyesight of the user, so that after the display page is zoomed, the size of the characters displayed in the display page can meet the browsing requirement, and the user experience is better.
Fig. 9 is a schematic structural diagram of a display terminal according to an embodiment of the present application. As can be seen with reference to fig. 9, the display terminal may include: a processor 101 and a display 102.
The processor 101 may be configured to determine an actual character size of characters in a display page displayed by the display 102. And acquiring a target character size, wherein the target character size is determined according to the target viewing distance and the target vision of the user. And determining a target scaling according to the actual character size and the target character size. And zooming the display page according to the target zooming scale.
Optionally, the processor 101 may be further configured to obtain the number of scaled independent pixels of the character displayed in the display page and a scaling factor, where the scaling factor is determined according to an actual pixel density and a standard pixel density of a display of the display terminal. And determining the number of physical pixels of the character displayed in the display page according to the scaling independent pixel number and the scaling coefficient. And determining the actual character size of the characters displayed in the display page according to the number of the physical pixels and the pixel size of each physical pixel in the display of the display terminal.
Optionally, the processor 101 may be further configured to obtain a target viewing distance and a target vision of the user. Determining a target unit character size corresponding to the target vision according to the corresponding relation between the vision and the unit character size; and determining a target character size according to the target viewing distance and the target unit character size.
Optionally, the processor 101 may be further configured to determine a product of the target viewing distance and the target unit character size as the target character size.
Optionally, the processor 101 may be further configured to determine a product of the target viewing distance and the target unit character size as an initial character size. Displaying the preview character of the initial character size in a preview interface. And adjusting the initial character size in response to the adjustment operation for the initial character size. And determining the adjusted initial character size as a target character size.
Optionally, the processor 101 may be further configured to detect whether a function of zooming the displayed page is turned on. If the function of zooming the displayed page is turned on, the processor 101 executes the step of determining the actual character size of the characters in the displayed page.
Optionally, the display terminal 10 may further include: a memory 103. The memory 103 may be used to store a target scaling.
The processor 101 may be further configured to display, in response to the adjustment operation for the display page, a plurality of alternative scales in the display page, the plurality of alternative scales including: the target scaling.
To sum up, the embodiment of the present application provides a display terminal, where the display terminal may determine a target scaling ratio according to an actual character size of an acquired character in a display page and a target character size, and scale the display page according to the target scaling ratio. According to the method provided by the embodiment of the application, when the display page is adjusted, the target scaling determined according to the actual character size and the target character size is adjusted, so that the flexibility of adjusting the character size is higher. In addition, the target character size is determined according to the target viewing distance and the target vision of the user, so that after the display page is zoomed, the size of the characters displayed in the display page can meet the browsing requirement of the user, and the user experience is better.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the display terminal and each device described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
Fig. 10 is a schematic structural diagram of another display terminal provided in an embodiment of the present application. Referring to fig. 10, the display terminal 10 may include a controller 110, a tuner demodulator 120, a communicator 130, a detector 140, an external device interface 150, a memory 190, a user input interface, a video processor 1601, an audio processor 1602, a display 180, an audio output interface 170, a power supply.
The tuner demodulator 120 receives the broadcast television signal in a wired or wireless manner, and may perform modulation and demodulation processing such as amplification, mixing, resonance, and the like, so as to demodulate, from a plurality of wireless or wired broadcast television signals, an audio/video signal carried in a frequency of a television channel selected by a user, and additional information (e.g., an EPG data signal).
The tuner demodulator 120 is responsive to the user selected television channel frequency and the television signal carried by the frequency, as selected by the user and controlled by the controller 110.
In other exemplary embodiments, the modem 120 may be in an external device, such as an external set-top box. In this way, the set-top box outputs television audio/video signals after modulation and demodulation, and the television audio/video signals are input into the display terminal 10 through the input/output interface 150.
The communicator 130 is a component for communicating with an external device or an external server according to various communication protocol types. For example, the communicator 130 may include a wireless fidelity (WIFI) module 131, a bluetooth communication protocol module 132, a wired ethernet communication protocol module 133, and other network communication protocol modules or near field communication protocol modules.
The display terminal 10 may establish a connection of a control signal and a data signal with an external control device or a content providing device through the communicator 130. For example, the communicator may receive a control signal of the remote control device according to the control of the controller.
The detector 140 is a component for the display terminal 10 to collect signals of an external environment or interaction with the outside. The detector 140 may include a light receiver 142, a sensor for collecting the intensity of ambient light, which may be used to adapt to display parameter changes, etc.; the system can further include an image collector 141, such as a camera, etc., which can be used for collecting external environment scenes, collecting attributes of the user or interacting gestures with the user, adaptively changing display parameters, and recognizing user gestures to realize interaction with the user.
In some other exemplary embodiments, the detector 140 may further include a temperature sensor, such as by sensing an ambient temperature, and the display terminal 10 may adaptively adjust a display color temperature of the image. For example, when the temperature is higher, the display terminal 10 may be adjusted to display a color temperature of the image that is cooler; when the temperature is lower, the display terminal 10 can be adjusted to display the image with warmer color temperature.
In some other exemplary embodiments, the detector 140 may further include a sound collector, such as a microphone, which may be used to receive a user's voice, a voice signal including a control instruction of the user to control the display terminal 10, or collect an ambient sound for identifying an ambient scene type, and the display terminal 10 may adapt to the ambient noise.
The external device interface 150 provides a component for the controller 110 to control data transmission between the display terminal 10 and other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.
Among them, the external device interface 150 may include: one or more High Definition Multimedia Interface (HDMI) terminals 151, Composite Video Blanking Synchronization (CVBS) terminals 152, analog or digital component terminals 153, Universal Serial Bus (USB) terminals 154, red, green, and blue (RGB) terminals (not shown in the figure), and the like.
The controller 110 controls the operation of the display terminal 10 and responds to the user's operation by running various software control programs (such as an operating system and various application programs) stored on the memory 190. For example, the memory 19 stores a computer program, and the controller 110 can implement the zoom display method provided by the above method embodiment when executing the computer program.
As shown in fig. 10, the controller 110 includes a Random Access Memory (RAM) 113, a read-only memory (ROM) 114, a graphics processor 116, a Central Processing Unit (CPU) 112, a communication interface 118, and a communication bus. The RAM 113 and the ROM 114, the graphic processor 116, the CPU 112, and the communication interface 118 are connected via a bus.
A ROM 113 for storing instructions for various system boots. If the power of the display terminal 10 is started when the power-on signal is received, the CPU 112 executes the system boot instruction in the ROM and copies the operating system stored in the memory 190 to the RAM 114 to start running the boot operating system. After the boot of the operating system is completed, the CPU 112 copies the various applications in the memory 190 to the RAM 114, and then starts running and booting the various applications.
A graphics processor 116 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator and displaying the rendered result on the display 180.
In some exemplary embodiments, the CPU 112 may include a plurality of processors. The plurality of processors may include one main processor and a plurality of or one sub-processor. A main processor for performing some operations of the display terminal 10 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.
The communication interfaces may include a first interface 1181 to an nth interface 118 n. These interfaces may be network interfaces that are connected to external devices via a network.
The controller 110 may control the overall operation of the display terminal 10. For example, in response to receiving a user command for selecting a User Interface (UI) object displayed on the display 180, the controller 110 may perform an operation related to the object selected by the user command.
Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input devices (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display terminal 10 or a voice command corresponding to a voice spoken by the user.
The memory 190 includes a memory for storing various software modules for driving and controlling the display terminal 10. Such as: various software modules stored in memory 190, including: the system comprises a basic module, a detection module, a communication module, a display control module, a browser module, various service modules and the like.
The basic module is a bottom layer software module used for signal communication between hardware in the display terminal 10 and sending processing and control signals to an upper layer module. The detection module is a management module used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management.
For example, the voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is a module for controlling the display 180 to display image content, and may be used to play information such as multimedia image content and UI. The communication module is used for carrying out control and data communication with external equipment. And the browser module is used for executing data communication between the browsing servers. The service module is a module for providing various services and various application programs.
Meanwhile, the memory 190 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.
A user input interface for transmitting an input signal of a user to the controller 110 or transmitting a signal output from the controller to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may send an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by a user to the user input interface, and then the input signal is forwarded to the controller by the user input interface; alternatively, the control device may receive an output signal such as audio, video, or data output from the user input interface via the controller, and display the received output signal or output the received output signal in audio or vibration form.
In some embodiments, a user may input a user command on a Graphical User Interface (GUI) displayed on the display 180, and the user input interface receives the user input command through the GUI. Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.
The video processor 1601 is configured to receive a video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal that is directly displayed or played on the display 180.
Illustratively, the video processor 1601 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.
The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal and an audio signal.
And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.
And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.
The frame rate conversion module is configured to convert a frame rate of an input video, such as a frame rate of an input 24Hz (hertz), 25Hz, 30Hz, or 60Hz video into a frame rate of 60Hz, 120Hz, or 140Hz, where the input frame rate may be related to a source video stream, and the output frame rate may be related to an update rate of a display. The input is realized in a common format by using a frame insertion mode.
And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.
And a display 180 for receiving the image signal input from the video processor 1601 and displaying the video content and image and a menu manipulation interface. The display 180 includes a display component for presenting a picture and a driving component for driving image display. The video content may be displayed from the video in the broadcast signal received by the tuner demodulator 120, or from video content input from the communicator or an external device interface. The display 120 simultaneously displays a user manipulation interface UI generated in the display terminal 10 and used to control the display terminal 10.
And, according to the type of the display 180, a driving assembly for driving the display is further included. Alternatively, a projection device and projection screen may be included, provided that the display 180 is a projection display.
The audio processor 1602 is configured to receive an audio signal, and perform decompression and decoding according to a standard codec protocol of the input signal, and perform audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played in the speaker 172.
The audio output interface 170 is configured to receive an audio signal output by the audio processor 1602 under the control of the controller 110, and the audio output interface may include a speaker 172 or an external sound output terminal 174, such as an external sound terminal or an earphone output terminal, for outputting to a generating device of an external device.
In other exemplary embodiments, the video processor 1601 may comprise one or more chips. The audio processor 1602, may also include one or more chips.
And, in some other exemplary embodiments, the video processor 1601 and the audio processor 1602 may be separate chips or may be integrated with the controller 110 in one or more chips.
And a power supply for supplying power supply support to the display terminal 10 from the power input from the external power source under the control of the controller 110. The power supply may include a built-in power circuit installed inside the display terminal 10, or may be a power supply installed outside the display terminal 10, such as a power interface for providing an external power supply in the display terminal 10.
The embodiment of the present application provides a computer-readable storage medium, which stores instructions that, when run on a computer, cause the computer to execute the zoom display method provided by the above method embodiment.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments shown in the present application without inventive effort, shall fall within the scope of protection of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary one or more examples, it is to be understood that each aspect of the disclosure can be utilized independently and separately from other aspects of the disclosure to provide a complete disclosure.
It should be understood that the terms "first" and "second," and the like in the description and claims of this application and in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances and can be implemented in sequences other than those illustrated or otherwise described herein with respect to the embodiments of the application, for example.
Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.
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 zooming display method is applied to a display terminal, and comprises the following steps:
determining the actual character size of characters in a display page;
acquiring a target character size, wherein the target character size is determined according to a target viewing distance and a target vision of a user;
determining a target scaling according to the actual character size and the target character size;
and zooming the display page according to the target zooming scale.
2. The method for scaled display according to claim 1, wherein said determining the actual character size of the characters in the displayed page comprises:
acquiring the number of scaling independent pixels and a scaling coefficient of characters displayed in the display page, wherein the scaling coefficient is determined according to the actual pixel density and the standard pixel density of a display of the display terminal;
determining the number of physical pixels of the characters displayed in the display page according to the number of the scaling independent pixels and the scaling coefficient;
and determining the actual character size of the characters displayed in the display page according to the number of the physical pixels and the pixel size of each physical pixel in the display of the display terminal.
3. The zoom display method according to claim 1, wherein before the obtaining of the target character size of the character displayed in the display terminal, the method further comprises:
acquiring a target viewing distance and the target vision of a user;
determining a target unit character size corresponding to the target vision according to the corresponding relation between the vision and the unit character size;
and determining a target character size according to the target viewing distance and the target unit character size.
4. The method of claim 3, wherein said determining a target character size based on said target viewing distance and said target unit character size comprises:
and determining the product of the target viewing distance and the target unit character size as a target character size.
5. The method of claim 3, wherein said determining a target character size from a product of said target viewing distance and said target unit character size comprises:
determining a product of the target viewing distance and the target unit character size as an initial character size;
displaying a preview character of the initial character size in a preview interface;
adjusting the initial character size in response to an adjustment operation for the initial character size;
and determining the adjusted initial character size as a target character size.
6. The method of any of claims 1 to 5, wherein prior to said determining the actual character size of the characters in the displayed page, the method further comprises:
detecting whether a function of zooming a display page is started or not;
and if the function of zooming the displayed page is started, executing the step of determining the actual character size of the characters in the displayed page.
7. The method of any of claims 1 to 5, wherein after determining a target scaling from the actual character size and the target character size, the method further comprises:
storing the target scaling;
in response to an adjustment operation for the display page, displaying a plurality of alternative scales in the display page, the plurality of alternative scales including: the target scaling.
8. A display terminal, characterized in that the display terminal comprises: a processor and a display; the processor is configured to:
determining an actual character size of characters in a display page displayed by the display;
acquiring a target character size, wherein the target character size is determined according to a target viewing distance and a target vision of a user;
determining a target scaling according to the actual character size and the target character size;
and zooming the display page according to the target zooming scale.
9. The display terminal of claim 8, wherein the processor is further configured to:
acquiring the number of scaling independent pixels and a scaling coefficient of characters displayed in the display page, wherein the scaling coefficient is determined according to the actual pixel density and the standard pixel density of a display of the display terminal;
determining the number of physical pixels of the characters displayed in the display page according to the number of the scaling independent pixels and the scaling coefficient;
and determining the actual character size of the characters displayed in the display page according to the number of the physical pixels and the pixel size of each physical pixel in the display of the display terminal.
10. A computer-readable storage medium having stored therein instructions which, when run on a computer, cause the computer to execute the zoom display method according to any one of claims 1 to 7.
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