WO2011091739A1

WO2011091739A1 - Focal element display method and device and digital television receiving terminal

Info

Publication number: WO2011091739A1
Application number: PCT/CN2011/070513
Authority: WO
Inventors: 刘汉军; 蔡婷
Original assignee: 深圳市同洲电子股份有限公司
Priority date: 2010-02-01
Filing date: 2011-01-24
Publication date: 2011-08-04
Also published as: CN101882432B; CN101882432A

Abstract

A focal element display method and device and a digital television receiving terminal are provided. The display method includes constructing two overlapped webpage windows, in a lower window loading a webpage content selected by users and in an upper window loading a transparent webpage (100); obtaining typesetting information of the lower window, and determining a position of the current focal element according to the typesetting information(101); performing special effects drawing in a corresponding position of the upper window according to the position of the current focal element (102); and displaying the webpage after the special effects drawing (103).

Description

Focus element display method, device and digital television receiving terminal

This application claims priority to Chinese Patent Application No. 201019164031.X, entitled "Focus Element Display Method, Device and Digital TV Receiving Terminal", filed on February 1, 2010. The content is incorporated herein by reference.

Technical field

The present invention relates to the field of digital television technologies, and in particular, to a focus element display method and apparatus, and a digital television receiving terminal. Background technique

With the continuous development of digital TV technology, digital TV receiving terminals have more and more functions, and access to the Internet through embedded browsers has become one of the main functions. The embedded browser is different from the browser on the computer. On the computer, when the user is interested in a certain link, just click the link with the mouse to browse the related link content. However, the embedded browser on the digital TV receiving terminal has no mouse and only one remote control. So the embedded browser must highlight the current focus (the location of the currently selectable link) and tell the user where the current focus is. The user can switch to the focus element of interest by using the up, down, left and right buttons of the remote control.

In the prior art, the manner in which the embedded browser browses the webpage to display the current focus element mainly includes: a rectangular frame mark, a fill color mark, and a replacement picture. The rectangle mark is to use a rectangle to frame the current page focus element as a marker that tells the user where the current focus element is. The fill color marker fills the background color of the current focus element with a default color, making a mark that tells the user where the current focus element is. Both of these methods are implemented by the browser on the current web page to mark the current focus.

The replacement image is the web page developer who monitors it through the client-side scripting language JavaScript. When switching focus, when an element becomes the current focus, the specified image is used as the background of the current element, and a mark is given to inform the user of the current focus element position. When this element is no longer the current focus, the specified image as the background is unloaded. This way of displaying the current focus element by replacing the image needs to be monitored and implemented by the JavaScript scripting language when loading and unloading the image. And the image is placed on the front-end device, and the image is loaded to the front-end device through the browser. And since the length and height of each focus element may be different, a web page may need to be prepared a number of different The size of the replacement picture. In addition, if you want to implement some complex focus element switching, such as the process of focus switching to achieve smooth 2D effects, you need to write a JavaScript scripting language to achieve these effects. This in turn requires web developers to master and use the JavaScript language.

The inventors found in the process of implementing the present invention that the first two ways of displaying the focus elements (rectangular frame marks, fill color marks) have poor display effects. At present, in order to display the effect, the digital TV service often does not adopt these two methods, but adopts a method of replacing pictures, so that the visual effect is better than the former two. However, when replacing images, the source of the image, the size of the focus element, etc., cause limitations in image selection. At the same time, in the process of switching the focus element, because the picture needs to be replaced from the front-end device, the switching speed is affected, the network is abnormal, and the focus element switching error or the focus switching problem may occur.

In summary, by replacing the picture to display the focus element, because the data needs to be downloaded from the front-end device, the speed of the switching is affected, and the load of the front-end device is also increased. The animation of web pages through the JavaScript scripting language will inevitably add a lot of JavaScript script code, which will affect the overall performance of the browser. At the same time, it also increases the amount of code written by the web developer's web page (which also affects the load on the front-end device). Summary of the invention

The invention provides a method and a device for displaying a focus element and a digital television receiving terminal, so that when a user browses a webpage, the digital television receiving terminal does not need to interact with the front-end device, speeds up the analysis speed, and realizes the animation effect of the focus switching. At the same time, it also solves the problem of abnormal focus when the network environment is poor, and reduces the download load of the front-end equipment.

The focus element display method provided by the present invention includes:

Create two overlapping webpage windows, load the webpage content selected by the user in the lower window, and load the transparent webpage in the upper window;

Obtaining layout information of the lower window, and determining a current focus element position according to the layout information;

Performing special effect drawing on the corresponding position of the upper window according to the current focus element position; displaying the webpage after the special effect is drawn.

Preferably, the creating two overlapping webpage windows loads the user selected webpage in the lower layer window Content, the upper window loads the transparent web page including:

Create two web pages that are identical in size and fully coincident;

Obtaining webpage data from the front end device according to the user request, and loading the webpage data in the lower layer window;

Load a fixed full-screen transparent web page in the upper window.

Preferably, the current focus element position comprises: an initial coordinate, a width, and a height of the current focus element.

Preferably, the drawing of the special effect in the corresponding position of the upper window according to the current focus element position comprises:

Determining a special effect drawing area that coincides with the current focus in an upper window according to initial coordinates, width, and height of a current focus element in the lower window;

Special effects drawing is performed in the special effect drawing area.

Preferably, after the special effect drawing is performed in the special effect drawing area, the method further includes:

Receiving a focus element switching instruction to obtain a position of the focus element after switching;

Adjust the effect drawing area in the upper window page so that the effect drawing area coincides with the switched focus element position in the lower window.

Preferably, the adjusting the special effect drawing area in the upper window webpage comprises performing at least one of the following operations: panning, stretching, scaling, and rotating the special effect drawing area on the upper layer window webpage.

The focus element display device provided by the present invention includes:

Creating a module for creating two coincident webpage windows, loading the webpage content selected by the user in the lower layer window, and loading the transparent webpage in the upper layer window;

a focus positioning module, configured to acquire layout information of the lower window, and determine a current focus element position according to the layout information;

And a special effect drawing module, configured to perform special effect drawing on a corresponding position of the upper window according to the current focus element position;

The webpage display module is configured to display a webpage after the special effect is drawn.

Preferably, the creating module includes:

a window creation unit, configured to create two webpage windows of uniform size and completely coincident; a lower layer loading unit, configured to acquire webpage data from the front-end device according to a user request, and The webpage data is loaded in a lower layer window created by the window creation unit;

An upper window loading unit for loading a fixed full-screen transparent webpage in an upper window created by the window creation unit.

Preferably, the current focus element position determined by the focus positioning module comprises: an initial coordinate, a width, and a height of the current focus element.

Preferably, the special effect drawing module includes: an area positioning unit, configured to determine, according to initial coordinates, widths, and heights of current focus elements in the lower layer window, a special effect drawing area that coincides with the current focus in the upper layer window; And performing special effect drawing in the special effect drawing area determined by the area positioning unit.

Preferably, the focus positioning module includes: an initial positioning unit, configured to acquire layout information of a lower window, determine a current focus element position according to the layout information; and switch a positioning unit, configured to receive a focus element switching instruction, and obtain the switched The focus element position.

Preferably, the special effect drawing module further includes: an upper window management unit, configured to adjust a special effect drawing area in the upper layer window webpage, so that the special effect drawing area and the switched focus element position in the lower layer window overlap; the adjusting includes At least one of the following methods: Panning, stretching, scaling, and rotating the effect drawing area in the upper window web page.

Meanwhile, the present invention also provides a digital television receiving terminal including the above-described focus element display device.

The method and device for displaying the focus element provided by the present invention and the digital television receiving terminal can enable the terminal to interact with the front-end device without the need to interact with the front-end device, thereby speeding up the analysis speed and realizing the animation effect of the focus display. At the same time, it also solves the problem of abnormal focus when the network environment is poor, and reduces the download load of the front-end device. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description For some embodiments of the present invention, other drawings may be obtained from those skilled in the art without departing from the drawings.

1 is a schematic flow chart of a first embodiment of a method for displaying a focus element according to the present invention; 2 is a schematic flow chart of a second embodiment of a method for displaying a focus element according to the present invention; FIG. 3a to FIG. 3d are schematic diagrams showing the display of upper and lower windows provided by the present invention;

4 is a schematic structural view of a first embodiment of a focus element display device according to the present invention;

FIG. 5 is a schematic structural view of a second embodiment of a focus element display device according to the present invention. detailed description

The invention provides a method and a device for displaying a focus element and a digital television receiving terminal, so that when the user browses the webpage, the terminal does not need to interact with the front-end device, realizes the animation effect of the focus switching, and speeds up the analysis speed. At the same time, it also solves the problem of abnormal focus when the network environment is poor, and reduces the download load of the front-end equipment.

1 is a schematic flow chart of a first embodiment of a method for displaying a focus element provided by the present invention, as shown in FIG.

In step 100, at least two coincident webpage windows are created, the user-selected webpage content is loaded in the lower layer window, and the transparent webpage is loaded in the upper layered window.

In step 101, the layout information of the lower window is obtained, and the current focus element position is determined, that is, the location of the currently selectable link.

At step 102, special effect rendering is performed at a corresponding position of the upper window according to the current focus element position.

In step 103, the webpage after the completion of the special effect drawing is displayed. More specifically, the web page in the lower window coincides with the web page in the upper window, and the special effect drawing area on the upper window web page causes the current focus element in the lower window web page to be highlighted. At the same time, the other parts of the upper window are transparent, so the user can also browse other content in the lower window.

The method for displaying the focus element provided by the present invention is to create a transparent webpage before the webpage browsed by the user, and perform special effect drawing on the transparent webpage to display the current focus element, so that the terminal does not need to be connected with the front-end device when browsing the webpage. Interact, speed up parsing. At the same time, it also solves the problem of abnormal focus when the network environment is poor, and reduces the download load of the front-end equipment.

2 is a schematic flowchart of a second embodiment of a method for displaying a focus element according to the present invention. In this embodiment, the flow of the method will be described in more detail, as shown in FIG. 2:

In step 200, at least two webpage windows of uniform size and completely coincident are created.

More specifically, when the user confirms that it is necessary to browse a web page through operation, the digital television reception end The end opens a webpage window for loading the webpage selected by the user, and the digital television receiving terminal opens by default another webpage window of the same size as the aforementioned window and completely coincident. In the embodiment of the present invention, the webpage window located in the lower layer is referred to as the lower layer window, and is consistent with the size of the lower layer window, and the webpage window completely covering the lower layer window is the upper layer window.

In step 201, the digital television receiving terminal sends a webpage data acquisition request to the front end device to obtain data of the webpage selected by the user.

In step 202, the digital television receiving terminal acquires webpage data and loads it in a lower window. At the same time, a fixed full-screen transparent web page is loaded in the upper window. The digital television receiving terminal displays the webpage data while saving the layout information.

Further, the loaded full-screen transparent web page can be in Hypertext Markup Language 5.0 (HTML,

New in Hyper Text Mark-up Language 5.0): The canvas property, creating a canvas. At the same time, the webpage in the upper window is made full-screen transparent, so that the effect of drawing the focus on the webpage does not affect the actually viewed webpage.

More specifically, _canvas has a drawing application programming interface (API) based on the programming language j _ava s _C ript . Canvas is designed for client-side vector graphics. It does not have the ability to perform actions, but it provides a drawing API between the web page and the client-side JavaScript. Users can call these APIs to easily implement various effects. For example, if you have an API: rotate, you can implement a rotation effect. Web developers only need to call this API without having to write complex JavaScript to implement this effect.

In step 203, the layout information of the webpage in the lower window is obtained, and the current focus element position is determined. More specifically, the digital television receiving terminal acquires the typesetting information saved in step 202, and obtains the current focus element position based on the typesetting information. In an embodiment of the invention, the focus element position includes: an initial coordinate of the focus element, and a width and a height.

In step 204, according to the initial coordinates of the current focus element in the lower window, as well as the width and height, a special effect drawing area whose size is identical and completely coincident is determined in the upper window. As shown in FIG. 3a, 3b, if the content displayed in the lower window is as shown in FIG. 3a, and the current focus element is "home page", the special effect drawing area determined in the upper window is shown by the dotted line in FIG. 3b, of course. In practical applications, the dotted line does not exist.

In step 205, special effects drawing is performed in the special effect drawing area, and the network after the special effect drawing is completed is displayed. Page. The special effect drawing includes: coloring or adding animation in the special effect drawing area.

More specifically, the digital television receiving terminal calls the API in the canvas through the JavaScript program to perform special effects drawing in the special effect drawing area.

Further, if the content displayed in the lower window is as shown in FIG. 3a, the special effect drawing area determined in the upper window is as shown by the dotted line in FIG. 3b, and then colored in step 205 (may also be added animation or other special effects processing, For ease of understanding, after the coloring process is taken as an example in the embodiment, the display effect of the upper window is as shown in FIG. 3c, and the upper window and the lower window are overlapped, and the effect seen by the user is as shown in FIG. 3d.

After the above processing, the user can clearly see the current focus element. Meanwhile, in the method provided by the embodiment, the digital television receiving terminal not only acquires the webpage data, but also displays the focus element in the local processing, and the digital television receiving terminal and the front end. The device does not interact, which speeds up the processing and reduces the load on the front-end equipment, while preventing the focus abnormality when the network environment is poor.

Preferably, the focus element display method provided in this embodiment further includes a switching process of the current focus element, which is specifically as follows:

At step 206, a focus element switching instruction is received. The focus element switching instruction is issued by a digital television receiving terminal user by using a remote controller or directly operating on a digital television receiving terminal.

In step 207, according to the layout information of the lower window, the position of the focus element after the switching is determined, including: initial coordinates of the focus element, and width and height.

In step 208, the special effect drawing area in the upper window webpage is adjusted, so that the special effect drawing area and the switched focus element position in the lower layer window coincide, and the screen after the special effect drawing area is adjusted is displayed. More specifically, the manner in which the digital television receiving terminal adjusts the special effect drawing area in the upper window of the upper window includes: panning, stretching, scaling, rotating, etc. of the special effect drawing area in the webpage in the upper window, and finally making the upper window The colored effect drawing area on the web page completely coincides with the switched focus element in the lower layer window, so that the switched focus element is highlighted.

Further, because the transparent webpage in the upper window mainly uses the canvas attribute of the html5.0 standard. Therefore, in this step, the web developer can use the rotate method of the canvas to perform the rotation effect, draw the map by using the canvas's drawmage method, etc., so that the 2D animation effect can be realized during the switching of the focus element without passing through Complex web page JavaScript scripting language control. The method for displaying the focus element provided by the embodiment of the present invention is to first establish a transparent webpage that overlaps with the webpage browsed by the user before browsing the webpage, perform special effect drawing on the transparent webpage, display the current focus element, and enable the user to browse the webpage. When the digital television receiving terminal does not need to interact with the front-end device, the resolution speed is accelerated, and the focus abnormality problem when the network environment is poor is solved, and the download load of the front-end device is reduced. At the same time, the focus element display method provided by the embodiment of the present invention is implemented, and during the switching process of the focus element, the panning, stretching, zooming, and rotating of the special effect drawing area are implemented in the upper layer window, and the 2D animation effect is realized, so that the user's Better visual sense, while solving web page performance problems caused by complex animation effects, reducing the complexity of web pages and reducing the workload of web developers.

4 is a schematic structural diagram of a first embodiment of a focus element display device according to the present invention. The device can be applied to a digital television receiving terminal. As shown in FIG. 4, the device includes:

Create module 1 for creating at least two coincident webpage windows, loading the user-selected webpage content in the lower-level window, and loading the transparent webpage in the upper-level window.

The focus positioning module 2 is configured to obtain the layout information of the lower window, and determine the current focus element position, that is, the location of the currently selectable link.

The special effect drawing module 3 is configured to perform special effect drawing on the corresponding position of the upper window according to the current focus element position.

The webpage display module 4 is configured to display a webpage after the special effect is drawn.

The focus element display device provided by the present invention establishes a transparent webpage before the webpage browsed by the user, and performs special effect drawing on the transparent webpage to display the current focus element, so that the terminal does not need to be connected with the front-end device when browsing the webpage. Interact, speed up parsing. At the same time, it also solves the problem of abnormal focus when the network environment is poor, and reduces the download load of the front-end equipment.

Referring to FIG. 5, it is a schematic structural diagram of a second embodiment of a focus element display device provided by the present invention, which can be applied to a digital television receiving terminal.

In the present embodiment, the specific structure of the focus element display device and the functions of the respective modules will be described in more detail. As shown in Figure 5, the device includes:

The creation module 1 is used to create two overlapping webpage windows, load the webpage content selected by the user in the lower layer window, and load the transparent webpage in the upper layer window.

More specifically, creating module 1 includes:

The window creating unit 11 is configured to create at least two webpage windows of uniform size and completely coincident. More specifically, when the user confirms that it is necessary to browse a webpage through operation, the window creating unit 11 opens a webpage window for loading the webpage selected by the user, and the window creating unit 11 opens by default and has the same size as the aforementioned window, and completely coincides. Web page window. In the embodiment of the present invention, the webpage window located in the lower layer is referred to as the lower layer window, and is consistent with the size of the lower layer window, and the webpage window completely covering the lower layer window is the upper layer window.

The lower window loading unit 12 is configured to acquire webpage data from the front-end device according to the user request, and perform the typesetting of the obtained webpage data, and then load it into the lower-level window created by the window creating unit 11. The lower window display unit 12 displays the web page data while saving the layout information.

The upper window loading unit 13 is configured to load a fixed full-screen transparent webpage in an upper window created by the window creation unit. Further, the full-screen transparent webpage loaded by the layer window loading unit 13 can create a canvas by using the canvas property of the hypertext markup language HTML5.0. This way the effect of drawing focus on the page will not affect the actual page viewed.

More specifically, canvas is designed for client-side vector graphics. It does not have the ability to execute actions, but it provides a drawing API between the web page and the client-side JavaScript. Users can call these APIs to easily implement various special effects. Draw everything you want to draw on a web page.

The focus positioning module 2 is configured to acquire layout information of the lower window and determine a current focus element position. The focus positioning module 2 acquires the current focus element position according to the layout information saved in the lower window display unit 12, including: initial coordinates of the focus element, and width and height.

The special effect drawing module 3 includes:

The area locating unit 31 is configured to determine, according to the initial coordinates of the current focus element in the lower window, the width and the height, the special effect drawing area that coincides with the upper layer window. More specifically, according to the initial coordinates of the current focus element in the underlying window, as well as the width and height, a special effect drawing area that coincides with the size and completely coincides with the size is determined in the upper window. As shown in FIG. 3a, 3b, if the content displayed in the lower window is as shown in FIG. 3a, and the current focus element is "home page", the special effect drawing area determined in the upper window is shown by the dotted line in FIG. 3b, of course. In practical applications, the dotted line does not exist.

The special effect drawing unit 32 is configured to perform special effect drawing in the special effect drawing area determined by the area positioning unit; the special effect drawing includes: coloring or adding animation in the special effect drawing area. More Specifically, the digital television receiving terminal invokes an API in the canvas through a JavaScript program, and performs special effect drawing in the special effect drawing area.

Further, if the content displayed in the lower window is as shown in FIG. 3a, the special effect drawing area determined in the upper window is as shown by the dotted line in FIG. 3b, and then colored by the special effect drawing unit 32 (may also be added animation or other special effects processing). For convenience of understanding, in this embodiment, the coloring process is taken as an example, the display effect of the upper window is as shown in FIG. 3c, and the upper window and the lower window are overlapped, and the effect seen by the user is as shown in FIG. 3d.

The webpage display module 4 is configured to display a webpage after the special effect is drawn. After the processing of the above-mentioned modules, the user can clearly see the current focus element in the webpage display module 4. At the same time, the focus element display device provided by the embodiment not only acquires the webpage data, but also processes the focus element to be processed locally. The digital television receiving terminal does not interact with the front-end device, which not only speeds up the processing, but also reduces the load of the front-end equipment, and prevents the focus abnormality when the network environment is poor.

Preferably, the focus element display device provided by the embodiment may also switch the drawn effect from the current focus element to the focus element selected by the user by an animation when the user switches the focus element. Its specific implementation is:

The focus positioning module 2 further includes:

The initial positioning unit 21 is configured to acquire layout information of the lower window and determine a current focus element position.

The switching positioning unit 22 is configured to receive a focus element switching instruction, and obtain the switched focus element position, including: initial coordinates of the focus element, and width and height. The focus element switching command is issued by the digital television receiving terminal user via a remote controller or directly on the digital television receiving terminal.

At the same time, the special effect drawing module 3 further includes:

The upper window management unit 33 is configured to adjust a special effect drawing area of the webpage in the upper layer window, so that the special effect drawing area and the switched focus element position in the lower layer window are coincident; the adjusting manner includes: panning the webpage in the upper layer window, Stretch, scale, rotate.

More specifically, the upper window management unit 33 determines the corresponding position in the upper window based on the switched focus element position acquired by the switching positioning unit 22. Then, the upper window management unit 33 adjusts the special effect drawing area in the upper window webpage, including panning, stretching, scaling, rotating, etc., and finally The effect drawing area that has been colored on the webpage in the upper layer window is moved to the corresponding position, and completely coincides with the switched focus element in the lower layer window, so that the switched focus element is highlighted.

Further, because the transparent web page in the upper window mainly uses the canvas attribute of the html5.0 standard. Therefore, the upper window management unit 33 can use the rotate method of the canvas to perform the rotation effect, draw the canvas using the drawmage method of the canvas, etc., so that the 2D animation effect can be realized in the switching process of the focus element without complicated Web JavaScript scripting language control.

The focus element display device provided by the embodiment of the present invention firstly establishes a transparent webpage that overlaps with the user browsing the webpage before the user browses the webpage, performs special effect drawing on the transparent webpage, and displays the current focus element, so that the user browses the webpage. The terminal does not need to interact with the front-end device, speeds up the resolution, and solves the problem of abnormal focus when the network environment is poor, and reduces the download load of the front-end device. At the same time, the digital television receiving terminal provided by the embodiment of the present invention supports the translation, stretching, zooming, and rotating of the special effect drawing area in the upper layer window during the switching process of the focus element, thereby realizing the animation effect of the 2D, and enabling the user to The visual sense is better, and the performance problems caused by the implementation of complex animation effects are reduced, the complexity of the webpage is reduced, and the workload of the web developer is reduced.

The digital television receiving terminal of the present invention includes, but is not limited to, a set top box, an Internet Protocol Television (IPTV), a digital television integrated machine, a television mobile phone, and the like having a function of receiving a digital television.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary hardware platform, and of course, all can be implemented by hardware. Based on such understanding, all or part of the technical solution of the present invention contributing to the background art may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM, a magnetic disk, an optical disk, or the like. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.

Claims

Rights request

A method for displaying a focus element, comprising:

2. The method of displaying a focus element according to claim 1, wherein the creating two overlapping webpage windows loads the webpage content selected by the user in the lower layer window, and the upper layer window loading the transparent webpage comprises:

Create two web pages that are identical in size and fully coincident;

Load a fixed full-screen transparent web page in the upper window.

The method of displaying a focus element according to claim 1 or 2, wherein the current focus element position comprises: an initial coordinate, a width, and a height of the current focus element.

The method of displaying a focus element according to claim 3, wherein the performing the special effect drawing on the corresponding position of the upper window according to the current focus element position comprises:

Special effects drawing is performed in the special effect drawing area.

The method of displaying a focus element according to claim 4, further comprising: after performing the special effect drawing in the special effect drawing area:

The method for displaying a focus element according to claim 5, wherein the adjusting the special effect drawing area in the upper layer window webpage comprises performing at least one of the following operations: on the upper layer window webpage The effects draw area for pan, stretch, zoom, and rotate.

7. A focus element display device, comprising:

a focus positioning module, configured to acquire layout information of a webpage in the lower window, and determine a current focus element position according to the layout information;

a special effect drawing module, configured to perform special effect drawing on a corresponding position of the upper window according to the current focus element or a next focus element position;

8. The focus element display device according to claim 7, wherein the creating module comprises:

a window creation unit, configured to create two webpage windows of uniform size and completely coincident; a lower layer window loading unit, configured to acquire webpage data from the front end device according to the user request, and load the webpage data into the window creation unit to create In the lower window;

The focus element display device according to claim 7 or 8, wherein the current focus element position determined by the focus positioning module comprises: initial coordinates, width and height of the current focus element.

The focus element display device according to claim 9, wherein the special effect drawing module comprises:

a region positioning unit, configured to determine, in an upper window, a special effect drawing region that coincides with the current focus according to an initial coordinate, a width, and a height of a current focus element in the lower layer window;

The special effect drawing unit is configured to perform special effect drawing in the special effect drawing area determined by the area positioning unit.

The focus element display device according to claim 10, wherein the focus positioning module comprises:

An initial positioning unit, configured to acquire layout information of the lower window, and determine, according to the layout information, Front focus element position;

The switching positioning unit is configured to receive a focus element switching instruction, and acquire a position of the focus element after the switching.

The focus element display device according to claim 11, wherein the special effect drawing module further comprises:

An upper window management unit, configured to adjust a special effect drawing area in the upper window webpage, so that the special effect drawing area and the switched focus element position in the lower layer window coincide; the adjustment includes at least one of the following manners: The effects of the drawing area are panned, stretched, scaled, rotated.

A digital television receiving terminal, comprising the focus element display device according to any one of claims 7 to 12.