KR101269313B1 - Display apparatus and method responsive to distance - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for optimizing a screen configuration according to a distance between a user and a screen. The present invention can be applied to a display device including a distance measurement unit 10 for measuring a distance between a user and a screen, a control unit 20 for changing an image displayed on the screen according to the measured distance, And a display unit (40). In the present invention, a data storage unit 30 is provided to store information about an image to be changed by the control unit 20. [ That is, the control unit 20 changes the image according to the information stored in the data storage unit 30. According to the present invention, since the configuration of the screen is changed according to the position of the user, the user can easily recognize the image, and the display device responds to the user's position, so that the intelligent interface is constructed in the display device.

Distance measurement, magnification, font, MP3

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a display apparatus and a display apparatus,

1 is a block diagram showing a configuration of a preferred embodiment of a display device according to the present invention;

2 is a flow chart showing a preferred embodiment of a display method according to the present invention;

FIGS. 3A through 4B illustrate screens in which a preferred embodiment of the present invention operates.

Description of the Related Art [0002]

10: distance measuring unit 20: control unit

30: Data storage unit 40: Display unit

50: Lyrics image 60: Playback image

70: file name image 80; Recording status image

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device responsive to user behavior, and more particularly to a display device for recognizing a distance between a user and a display unit and reconstructing a screen of the display unit to correspond to the distance.

Generally, when reproducing a portable terminal, for example, an MP3 player, lyric information or the like is displayed on the display unit according to a user's operation. The display of such information enables the user to use the MP3 player more conveniently.

However, most of the MP3 players are manufactured in a portable size so that users can use them while moving, or can be easily mounted on a predetermined device. Accordingly, the size of the screen display unit included in the MP3 player is also small. It is therefore important to ensure that images displayed on a small screen are displayed in the most efficient manner.

However, the conventional display device displays only a certain image regardless of the user's behavior, so that the user can not easily recognize the image.

On the other hand, when the user views the display unit, if the displayed image is not clearly understood, the image is confirmed while pulling the display unit closer. In this case, the conventional display device does not cause any change in the screen configuration even though the user is gradually reducing the distance between the screen and the user. Thus, the conventional display device has a problem in that it can not operate because it interacts with the user's behavior.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an intelligent interface that responds to a user's behavior, A display device and a method of operating the same.

According to an aspect of the present invention, there is provided a method of controlling a display, the method comprising: measuring a distance to a front object; changing a setting condition of the display according to a measured value of the distance; And displaying the image according to the condition.

The present invention may further include detecting an operation mode and selecting an image to be changed in accordance with the operation mode.

At this time, the setting condition includes at least one of a display magnification, a display color, and a font of a character.

The change of the setting condition may be performed by a function having the distance measurement value as a variable or may be performed by selecting a setting condition corresponding to the distance measurement value from the data storage unit.

Meanwhile, the present invention may further include determining whether the distance from the forward object is within the set operation range, continuing the operation if the distance is within the operation range, and ending the operation if the distance is outside the operation range.

The present invention may further include checking the remaining amount of the battery and stopping the operation if the remaining amount of the battery is less than the set value.

According to another aspect of the present invention, there is provided a display apparatus including a distance measuring unit for measuring a distance to a front object, a controller for determining a display setting condition according to a measured value of the distance and transmitting a corresponding control signal, And a display unit for displaying the image in accordance with the condition.

The present invention may further comprise a data storage unit for storing setting conditions to be determined by the controller.

At this time, the controller detects the current operation mode of the display device, and selects an image to change the setting condition.

The data storage unit stores information on at least one of image information, display magnification, display color information, and font of a character to be changed according to the operation mode.

According to the present invention having the above-described configuration, since the screen configuration and magnification of the display vary in accordance with the position of the user, that is, the distance between the user's eyes and the display unit of the display device, And an intelligent interface in which a display device responds to a behavior pattern of a user is provided.

Hereinafter, preferred embodiments of the display device and the display method according to the present invention will be described in detail with reference to the accompanying drawings. The display device and method may be mounted on various devices such as sound, video, or communication. In the following preferred embodiments, the present invention is described as an example of an MP3 player.

FIG. 1 is a block diagram showing a configuration of a preferred embodiment of a display device according to the present invention, FIG. 2 is a flowchart showing a preferred embodiment of a display method according to the present invention, Fig. 8 is an exemplary diagram showing a screen on which an embodiment is operated.

As best shown in FIG. 1, the present invention includes a distance measuring unit 10 for measuring a distance to a forward object. The distance measuring unit 10 is provided on the front surface of the display apparatus according to the present invention. Preferably, the distance measuring unit 10 is disposed around the display window of the display apparatus, and measures the distance between the display window and the object on the front surface.

The distance measuring unit 10 measures a distance and transmits the measured value to a control unit 20 to be described later. Preferably, the distance measuring unit 10 includes a measurement sensor and an A / D converter for converting a measured value into a digital signal .

The distance measuring unit 10 is connected to a controller 20 which receives the measured values and determines a setting condition of the display. The control unit 20 determines an operation mode of the current display window, selects an image to be changed, and changes display setting conditions for the selected image. Of course, the control unit 20 is responsible for not only the control of the display but also the overall control of the operation of the device equipped with the display device. In this specification, only the display control related to the present invention will be described.

Meanwhile, the control unit 20 is provided with a data storage unit 30. The data storage unit 30 stores information on a display setting condition to be changed by the controller 20. That is, it stores data such as display magnification, color, and character font to be changed according to the type information of the image to be changed according to the operation mode and the distance value.

The display unit 40 is connected to the control unit 20 and displays an image according to a changed setting condition according to a control signal of the control unit 20. [ For example, a liquid crystal display device or a display device using LEDs can be widely applied to the display portion 40. [0064] Also, the display unit 40 may be applied to a display device of a touch screen type as well as a general display device.

Hereinafter, the operation of the display device and the display method in response to the distance according to the present invention will be described in detail with reference to the operation sequence.

FIG. 2 is a flowchart illustrating a display method of a display device responsive to a distance according to the present invention.

As shown, the present invention first checks whether the distance response function according to the present invention is on (S10). That is, it is preferable that the user can select whether to apply the function of the present invention. Therefore, when the distance responsive function is set to the off state, the distance responsive function is activated only when the distance responsive function is set to the off state.

Next, if the distance responsive function is on, the remaining amount of the battery is inspected (S20). In case of a portable device, the duration of the battery is very important, so that if the remaining amount of the battery is less than the set value, the distance response function is not operated in order to minimize power consumption. Therefore, when the remaining amount of the battery is less than the set value, the distance responsive function is not operated and the distance responsive function is operated only when the remaining amount of the battery is equal to or greater than the set value.

The above-described steps S10 and S20 are not essential constituent steps of the present invention, but are additional steps for carrying out the present invention more conveniently and practically, and can be selectively employed according to the intention of the user or the manufacturer.

If the distance responsive function is on and the remaining amount of the battery is equal to or greater than the set value, the distance measuring unit 10 measures the distance to the preceding object (S30). The measurement of the distance is performed by a measurement sensor, and the measured measurement value is converted into a digital signal via an A / D converter and then transmitted to a control unit 20 to be described later.

When the distance measurement value is transmitted to the control unit 20, the control unit 20 determines whether the measured value is within the operation range of the present invention (S40). That is, the present invention is restricted to operate only when the user's eyes or hands are within a certain range. Therefore, if the measured value deviates from the operating range, the present invention does not work.

If the measured value is within the operating range of the present invention, the controller 20 senses the current operation mode of the display unit 40 (S50). For example, whether the current operation mode of the display unit 40 indicates the time or the like in the standby mode or whether the song lyrics is displayed in the playback mode or whether the recording progress and the remaining amount of remaining memory are displayed in the recording mode .

Next, the control unit 20 selects an image to be changed in operation mode according to the operation mode of the display unit 40 (S60). This is because the information required by the user differs according to the operation mode of the display unit 40, so that it is selected to change only the operation mode of the image.

For example, as shown in FIG. 3A, if the current display state is the playback mode, the user and the interested part are the music piece, the reproduction progress degree, and the lyrics. Therefore, in this case, the control unit 20 selects only the image of the music piece, the reproduction progress level, and the lyrics portion, except for the other portions of the background screen.

If the current display state is the recording mode as shown in FIG. 4A, the user and the interested part are the file name and the recording progress degree. Therefore, in this case, the controller 20 selects only the file name and recording progress except for the other part of the background screen.

As described above, the control unit 20 selects only images displaying important information according to the current operation mode.

Then, the control unit 20 changes the display setting condition for the selected image (S70). At this time, the setting condition includes a display size, a color, a position, and a character font in case of a character. At this time, the change of the setting condition is made according to the distance measurement value.

In more detail, the change of the setting condition may be determined by a function using the distance measurement value as a variable. That is, the setting condition can be changed to a display enlargement magnification or an enlargement magnification of a character font, as a result calculated by a function using the distance measurement value as a variable.

However, this method is difficult to cope with variously depending on the state of the display or the type of the image to be changed. Therefore, it is preferable that the control unit 20 changes the setting condition by selecting a setting condition to be changed from the data storage unit 30 as described later.

Therefore, the data storage unit 30 stores setting conditions for distance measurement values for each image to be changed according to each operation mode.

The following table is an example of the storage condition of the setting condition that the image is enlarged as the distance measurement value becomes smaller in the playback mode.

- Table -

(Playback mode)

Image to be changed Distance measurement (mm) Display setting conditions Display magnification color Character font Lyrics image 250 1 (no change) white 5 200 1 (no change) yellow 7 150 1 (no change) green 9 100 1 (no change) blue 11 50 1 (no change) black 13 Playback status image 250 × 1.2 No change none 200 × 1.4 No change none 150 × 1.6 No change none 100 × 1.8 No change none 50 × 2.0 No change none

In the table, the lyric image 50 and the reproduction status image 60 are set as the image to be changed in accordance with the distance value in the reproduction mode. As the distance value becomes smaller, that is, as the distance from the forward object becomes shorter, the lyrics image 50 is set such that the font of the character becomes larger and the colors sequentially change. The plot magnification is sequentially enlarged, but it is set so that there is no change in color.

Here, the table is an example of a part of the present invention, and the change of the image can be adjusted by changing the stored value. For example, it is possible to set the character font or the display magnification to be small as the distance measurement value becomes small, or to set the font or display magnification of the character to decrease again as the focal point of the eyes becomes smaller when the distance is smaller than the predetermined distance.

As described above, after the control unit 20 changes the setting condition for the image to be changed, the image is displayed on the display unit 40 according to the changed setting condition (S80). 3A to 4B show an exemplary view of the display unit 40 in which the image is changed in the manner as described above.

3A shows a state before the image is changed in the playback mode, and FIG. 3B shows an enlarged view of the lyric image 50 and the playback state image 60 in FIG. 3A.

4A shows a state before the image is changed in the voice recording mode, and FIG. 4B shows an enlarged view of the file name image 70 and the recording progress image 80 in FIG. 4A.

As shown in these drawings, the display unit 40 is displayed with the display setting conditions changed for each image according to the current operation mode and the measured distance value.

It is to be understood that the invention is not limited to the disclosed embodiment, but is capable of many modifications and variations within the scope of the appended claims. It is self-evident.

The following effects can be expected in the display device and the display method in accordance with the present invention as described above.

That is, the display device recognizes the distance between the user and the screen so as to achieve an optimal screen configuration, so that the user can easily recognize information such as images and characters.

The present invention has an advantage in that an intelligent interface is formed in which a user interacts with a display device because a screen configuration is different in response to a user's state and behavior.

Claims (11)

Measuring a distance to a forward object; Determining whether the measured value of the distance is within the operating range; Detecting an operating mode of the current display unit when the measured value of the distance is within the operating range; Selecting a specific image among the images displayed on the display unit, the setting condition of which is to be changed corresponding to the operation mode; Changing a display setting condition of the selected image according to the measured value of the distance; And And displaying an image in accordance with the changed display setting condition. delete The method according to claim 1, The above- A display magnification, a display color, and a font of a character. The method of claim 3, Wherein the change of the setting condition is made by a function using the distance measurement value as a variable. The method of claim 3, Wherein the changing of the setting condition is performed by selecting a setting condition corresponding to the distance measurement value from the data storage unit. The method according to claim 1, Further comprising the step of determining whether the distance from the front object is within the set operating range, continuing the operation if the distance is within the operating range, and ending the operation if the distance is outside the operating range / RTI > The method according to claim 1, Further comprising the step of checking the remaining amount of the battery and stopping the operation when the remaining amount of the battery is less than the set value. A distance measuring unit for measuring a distance to a front object; The controller determines whether the measured value of the distance is within the operating range, detects the current operating mode, selects a specific image to be changed in accordance with the operation mode among the images displayed on the display unit, A control unit for determining a display setting condition for an image selected according to a measured value and transmitting a corresponding control signal; And a display unit receiving the display control signal and displaying an image according to the setting condition. 9. The method of claim 8, And a data storage unit for storing setting conditions to be determined by the control unit. delete 10. The method of claim 9, In the data storage unit, Wherein at least one of image information to be changed according to the operation mode, display magnification, display color information, and font of a character is stored.

Images