KR20120000893A - Display device and method for controlling stereoscopic image - Google Patents

Abstract

PURPOSE: A display apparatus and image control method of a display apparatus are provided to prevent eyes strain according to watching for a 3D image in a long time by controlling the 3D image in a 3D area. CONSTITUTION: A control unit displays images at the display area of a display unit(S310). In case the image does not includes a 3D object, a 3D area processing unit does not operate a liquid crystal panel(S320). In case the 3D object includes the images, the 3D area processing unit extracts area where the 3D object is displayed(S330). The control unit process the extracted area using the liquid crystal panel(S340).

Description

Display device and video control method {DISPLAY DEVICE AND METHOD FOR CONTROLLING STEREOSCOPIC IMAGE}

The present invention relates to a display apparatus and an image control method of the display apparatus.

In general, the three-dimensional image representing the three-dimensional is achieved by the principle of stereo vision through two eyes, the parallax of two eyes, that is, binocular disparity that appears because the two eyes are about 65mm apart is the most important of the three-dimensional It can be called a factor. In other words, the left and right eyes see different two-dimensional images, and when these two images are transmitted to the brain through the retina, the brain accurately fuses each other to reproduce the depth and actual sense of the original three-dimensional image.

Currently, technologies for displaying three-dimensional stereoscopic images include stereoscopic image display, spectacles-free stereoscopic image display, and holographic display method using special glasses. There are two types of special glasses using polarization, time division, and color difference.

The polarization method is to separate the left and right images by using the light shielding effect by the combination of orthogonal polarizers. In other words, in the display device, when the images for the right and left eyes are simultaneously polarized at different angles and shot through the polarizing glasses, Use one eye to block the other image from entering.

The time-division method uses a shutter eyeglasses, etc., to alternately display images of left and right channels at a high speed in a single screen, so that a single image can be inserted into one eye by repeatedly blocking and opening and closing the screen. At this time, the left and right switching speed operates more than 60 times per second so that no blinking is felt by the real eyes.

The color difference method is a method of realizing three-dimensional by separating the image of both channels in the color dimension with the glasses of red on one side and blue on the other side. Apart from the quality of the three-dimensional sense, the use of sunglasses, there is a problem of color distortion, the color difference method is a trend that is gradually declining.

In addition, the glasses-free stereoscopic image display method includes a parallax method and a semi-cylindrical lens arranged so that an image can be separately observed through a vertical grid-shaped aperture in front of each image corresponding to the left and right eyes. It can be divided into a lenticular method using a lenticular plate and an integral photography method using a lens plate shaped like a fly's eye. In addition, the holographic display method can obtain a three-dimensional stereoscopic image having all factors such as focus adjustment, constrained angle, binocular parallax, and motion parallax, which are factors that generate a three-dimensional effect, and are classified into a laser light reproduction hologram and a white light reproduction hologram. do.

The three-dimensional image display method by the special glasses, but many people can enjoy the three-dimensional image, but it has a disadvantage that it causes inconvenience and unnatural because you have to wear a separate polarized glasses or liquid crystal shutter glasses.

Glasses-free stereoscopic image display method is limited to a small number of people because the observation range is fixed, but there is a feature that does not wear a separate glasses tend to be preferred. In other words, many studies have been conducted in the glassesless stereoscopic image display method because the observer directly observes the screen and the above-mentioned disadvantages disappear.

For example, a holographic display method is used to display a perfect 3D stereoscopic image, which is a 3D coordinate image directly displayed in space through a laser, a lens, and a mirror. You can get the feel of it, but it's not easy because it has the disadvantage of technical difficulties and the space that equipment takes up. Accordingly, there is an increasing tendency to adopt a parallax barrier, which is a method of virtually creating a 3D image through deception using a stereo image.

However, according to the parallax barrier method, the resolution and brightness of the entire screen are inferior, and it may cause dizziness when watching for a long time.

Therefore, when a stereoscopic image is required instead of displaying the entire screen as a stereoscopic image, a display device capable of implementing 3D only for the required portion and 2D in other portions is needed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a display apparatus and an image control method of a display apparatus for processing a 3D region of a specific region in which a 3D object is included in a liquid crystal panel using a liquid crystal panel.

In order to achieve the above object, the present invention comprises the steps of displaying an image containing a 3D object in the display area; Extracting an area of the display area in which the 3D object is displayed; And a 3D region processing of the extracted region through a liquid crystal panel.

In order to achieve the above object, the present invention includes a display unit including a display area for displaying an image including a 3D object; A 3D region processor configured to extract a region where the 3D object is displayed among the display regions and process the extracted region through a 3D region through a liquid crystal panel; A storage unit storing 2D and 3D image information; And a control unit which controls the display unit, the 3D region processing unit, and the storage unit as a whole.

According to an embodiment of the present invention, by processing the 3D region only for a specific region including the 3D object, the region in which the 3D image is implemented may be flexible.

In addition, according to one embodiment of the present invention, by processing only a specific area containing a 3D object 3D region, it is possible to prevent eye fatigue and dizziness caused by watching a long time 3D image.

Meanwhile, according to one embodiment of the present invention, when a specific area is to be implemented with only 2D images according to the law, it is possible to implement only a specific area as 3D image that does not violate the law.

1 is a view for explaining a display apparatus according to an embodiment of the present invention.
2 is a block diagram illustrating a display device according to an embodiment of the present invention.
3 is a flowchart illustrating an image control method of a display apparatus according to an embodiment of the present invention.
4 is a diagram for describing a method of extracting an area on which a 3D object is displayed according to an embodiment of the present invention.
5 and 6 illustrate an embodiment of the present invention.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

Throughout the specification, a 3D image (stereoscopic image) refers to an image that appears to be in three-dimensional space. In practice, a method of reproducing a 3D image has been attempted, but a widely studied method is to present the same image as seen from the left and right directions to the left and right eyes, and to disparage the two eyes and synthesize them to make them appear as one stereoscopic image. . Polarizing glasses, color filter glasses, or a screen may be used as a method of separating the left and right bidirectional images and making them visible to the left and right eyes. According to an embodiment of the present invention, a parallax barrier method may be used to implement a 3D image.

Throughout the specification, the parallax barrier method arranges a parallax barrier formed by repeatedly arranging transparent slits and opaque portions in front of the monitor, so that an observer monitors through a transparent slit of the parallax barrier in a 3D image. It refers to a way to view the image displayed in the three-dimensional shape. That is, by superimposing the slit-shaped openings arranged in the vertical or horizontal direction on the planar image in which left / right eye image information is displayed, the stereograph of the observer is induced to make a stereoscopic feeling.

Throughout the specification, the 2D object means a basic image for implementing a planar image. In addition, in the specification, the 3D object means a basic image for implementing a stereoscopic image, and the 3D object may include an image for a right eye and an image for a left eye. In other words, the 3D object means an image before 3D image processing. The 3D object may include a video image and may be produced by a specific program.

Hereinafter, a display apparatus and an image control method of the display apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. First, a display device related to an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

1 is a diagram illustrating a display apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram illustrating a display apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the display apparatus includes a display unit 100 for displaying an image including a 2D object and a 3D object on a display area. There may be a backlight to supply. In addition, a parallax barrier may exist in front of the display unit 100. According to an embodiment of the present invention, the liquid crystal panel 200 may serve as a parallax barrier. The display device may optionally include Proterction Glass.

According to an embodiment of the present invention, the display device refers to an apparatus for providing 2D images and 3D images to the observer. For example, the display device may be a mobile terminal including a computer having a monitor, a notebook, a TV, and a liquid crystal display, that is, a mobile phone, a smart phone, a personal digital assistant (PDA), and a portable multimedia (PMP). Player), navigation, e-book terminal, and the like.

According to an embodiment of the present invention, the display unit 100 includes a display area in which image images of 2D objects and 3D objects can be displayed.

For example, the display area may be a liquid crystal display (LCD). In this case, the LCD panel has a large number of pixels, and displays an image in a manner of applying an electric field to each pixel. Therefore, when the LCD displays a 3D object, the left eye pixel displaying the left eye image and the right eye pixel displaying the right eye image may be alternately formed.

In addition, according to an embodiment of the present invention, the display unit 100 may be a plasma display panel (PDP), organic light emitting diodes (OLED), a cathode ray tube display (CRT), an electronic paper, or the like.

Plasma Display Panel (PDP) refers to a flat panel display using a gas discharge phenomenon. The PDP has the advantage that the thickness of the TV can be greatly reduced, unlike the CRT (Brown Tube) using a long electron gun, since the width between the glass plates does not exceed 10 cm. On the other hand, since PDP implements 600 screens per second (600㎐), there is little cross-talk phenomenon and thus may be suitable for realizing 3D images.

Organic Light Emitting Diodes (OLEDs) are also called organic light emitting diodes or organic ELs. It refers to 'self-emitting organic material' that emits light by using electroluminescence which emits light when electric current flows through fluorescent organic compound. It can be driven at low voltages and can be made thin. With a wide viewing angle and fast response speed, the image quality does not change even when viewed from the side, and no afterimage remains on the screen.

A CRT display (cathode ray tube display device) refers to a device that displays information on a monitor by displaying letters, figures, and the like by scanning an electron beam of fluorescent material on a CRT.

In addition, the display unit 100 may be a flexible display. Flexible display means a display that can be bent. In the LCD and organic light emitting diode (OLED), the glass substrate surrounding the liquid crystal is replaced with a plastic film, thereby giving flexibility to fold and unfold.

Meanwhile, according to the exemplary embodiment of the present invention, the liquid crystal panel 200 existing between the display unit 100 and the observer may be used as a parallax barrier to perform 3D region processing. Although not clearly shown in the drawing, the liquid crystal panel 200 has a plurality of pixels arranged vertically and horizontally. In addition, a video signal voltage is selectively applied to each pixel electrode by a thin film transistor (TFT) provided in a one-to-one correspondence.

Therefore, when power is applied to the liquid crystal panel 200, some pixels serve as a barrier 210 that blocks / absorbs light emitted from the backlight, and the other pixels that are not powered are slit. (Slit) 220 to play a role.

According to an embodiment of the present invention, the 3D region processing unit 300 of the display apparatus performs 3D region processing on the region where the 3D object is displayed using the liquid crystal panel 200.

Here, 3D region processing means to operate only a specific region of the liquid crystal panel 200 corresponding to a specific portion where the 3D object is displayed as a Pallax barrier.

If the 3D object does not process the displayed area in the 3D area, both the left and right eyes receive the left eye image and the right eye image at the same time so that no visual difference occurs, and the planar image is simply overlapped.

According to an embodiment of the present invention, the 3D image processor 400 of the display apparatus may separate and extract the left eye image and the right eye image of the image including the 3D object. In this case, the 3D region processor 300 may transfer the image separated by the 3D image processor 400 to the left eye image and the right eye image to the right eye through the slit of the liquid crystal panel 200. Make sure

In addition, according to an embodiment of the present invention, N views may be made by combining the right eye image and the left eye image. Therefore, the display device can provide a 3D image to an observer existing at various positions.

The storage unit 500 of the display device may store shapes, position information (coordinate values), size information, and the like of images related to 2D objects and 3D objects. It may also store information about the situation and event in which the event occurs.

In addition, the display device may include a communication unit 600 for wired and wireless communication with an external server.

The controller 700 of the display apparatus may control the display 100, the 3D region processor 300, the 3D image processor 400, the storage 500, and the communicator 600. have. In particular, the controller 700 may control the 3D region processing of the liquid crystal panel 200 in association with the 3D region processor 300.

The 3D region processor 300 and the 3D image processor 400 may be implemented as a separate program from the controller 700. The 3D region processor 300 and the 3D image processor 400 may include the controller ( 700 and one program.

Hereinafter, a method of controlling an image of the display device will be described in detail.

3 is a flowchart illustrating an image control method of a display apparatus according to an embodiment of the present invention.

As shown in FIG. 3, the image image may be displayed on the display area of the display unit 100 [S310]. In this case, the image image may include at least one of a 2D object and a 3D object. That is, only 2D objects may be displayed in the display area, only 3D objects may be displayed, or 3D objects may be displayed together with the 2D objects.

If an image image including a 3D object is displayed, the right eye image and the left eye image may be distinguished and displayed on the display area of the display unit 100.

However, the 3D object may be displayed in the entire display area, but may be displayed only in a predetermined specific area. In the latter case, the 3D object is displayed in a specific area according to the position information, the size information, and the shape information of the 3D object.

For example, as in a display device such as a casino game device, an area related to money may be implemented as a 2D image only according to legal regulations, so that an area that can be implemented as a 3D image may be limited. In this case, according to one embodiment of the present invention, it is possible to display the 3D object only for a predetermined display area which does not violate the law.

Meanwhile, according to an exemplary embodiment of the present invention, the displayed 2D object and 3D object may be a 2D object and / or a 3D object previously stored in the storage unit 500. In addition, according to another embodiment of the present invention, the displayed 2D object and 3D object may be an image received from the external West through wired or wireless communication.

According to an embodiment of the present invention, the 3D region processor 300 of the display apparatus determines whether the 3D object is included in the image image displayed on the display region of the display 100 [S320]. If the 3D object is not included, it is not necessary to perform the 3D region processing. Therefore, in this case, the 3D region processing unit 300 prevents the liquid crystal panel 200 from operating. That is, no voltage is applied to the barrier 210 electrode of the liquid crystal panel 200 to simply transmit the light emitted from the backlight, and as a result, the viewer can view the 2D image.

Meanwhile, when the 3D object is included in the displayed image image, the 3D region processor 300 extracts an area where the 3D object is displayed [S330]. In this case, the 3D region processor 300 may extract an area on which the 3D object is displayed using location information, size information, and shape information of the 3D object. Each 3D object displayed in the display area is a 3D object that combines a unique coordinate value (eg, X = 19, Y = 24) and a size value (eg, h = 220, V = 190). This is because it may have a shape data value.

According to an embodiment of the present invention, the extracted region is subjected to 3D processing using the liquid crystal panel 200 [S340].

When a liquid crystal driving voltage is applied to the barrier electrode of the extracted liquid crystal panel 200, a blocking region for blocking light of a backlight and a transmission region for transmitting light therebetween in a predetermined region of the liquid crystal panel 200. In this figure, the blocking region acts as a barrier 210 and the transmission region acts as a slit 220.

In this case, the light passing through the pixel (pixel) in which the left eye image of the display unit 100 is displayed among the light emitted from the backlight reaches the viewer's left eye through the slit 220 of the liquid crystal panel 200. The light passing through the pixel (pixel) on which the image for the right eye of the display unit 100 is displayed reaches the viewer's right eye through the slit 220 of the liquid crystal panel 200. Sufficient disparity information exists in the image displayed through each of the left and right eye pixels, so that an observer can recognize a 3D stereoscopic image of a specific region.

For example, as shown in FIG. 4, the 3D object called cherry displayed in the display area has coordinate values of (X, Y) = (19, 24), and size values h = 220, V = 190. For example, suppose that the 3D object called strawberry displayed in the display area has a coordinate value of (X, Y) = (30, 34) and a size value of h = 220 and V = 190. In this case, the 3D area processor 300 receives the shape data value of the 3D object in a predetermined format from an external communication unit or the storage unit 500, and coordinates and sizes of the cherry and strawberry displayed in the display area. Value, and shape value. According to the extracted result value, a voltage is applied only to a predetermined region of the liquid crystal panel 200 corresponding to the display region of the display unit 100. Therefore, the 3D region processing unit 300 has an area where the coordinate value of the liquid crystal panel 200 is (X, Y) = (19, 24) and the size value is h = 220, V = 190 and the coordinate value is (X , Y) = (30, 34), and only the pixels of the region having the size values h = 220 and V = 190 can be operated as parallax barriers.

Accordingly, as shown in FIG. 5, only a predetermined area of the liquid crystal panel 200 is operated as a parallax barrier for processing a 3D area, and pixels of the remaining areas are turned off to turn off all light generated in the backlight. This is to allow the transmission. In other words, the area of the liquid crystal panel 200 which operates as a parallax barrier is continuously changed according to the coordinates, the size, and the shape value of the extracted 3D object.

In addition, according to an embodiment of the present invention, the 3D region processing unit 300 does not always operate the liquid crystal panel 200 as a parallax barrier, but processes the 3D region only when a specific event signal is received. You may.

For example, in the case of a slot machine, which is one of game devices, when a situation where a customer can receive a large dividend due to a combination of a predetermined picture, an event signal for the situation is received and a 3D object is displayed on the display area. In addition, the 3D region processor 300 may operate only a specific portion of the liquid crystal panel 200 as a parallax barrier according to the event signal to perform 3D region processing.

Therefore, according to an embodiment of the present invention, since only a specific area of the liquid crystal panel 200 is used as a parallax barrier based on a specific area on which the 3D object is displayed, the entire area is implemented as a 3D image to watch for a long time. The fatigue or dizziness of the eyes due to the phenomenon can be prevented. In addition, only when a specific event signal is received, the 3D region processor 300 may perform a 3D region process using the liquid crystal panel 200, thereby delivering a greater visual effect to an observer. Meanwhile, in the case of a casino game machine or the like, it is possible to implement a 3D image by processing a 3D region only in a specific region other than a region that cannot be legally implemented as a 3D image.

 According to an embodiment of the present invention, as shown in FIG. 6, it is also possible to implement a 3D image separately from the 2D image. For example, in the case of a game screen, the main screen of the game and the image displaying specific items may be separated. In this case, the game basic screen may be implemented as a 2D image, and the specific item may be implemented as a 3D image. Therefore, the 3D region processor 300 may implement the 3D region process of the specific item using the liquid crystal panel 200 to be separated from the game basic screen.

Those skilled in the art to which the present invention pertains will understand that the above-described present invention can be implemented in other specific forms without changing the technical spirit or essential features.

Therefore, it is to be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: display unit
200: liquid crystal panel (Parallax Barrier)
300: 3D area processing unit
400: 3D image processing unit
500: storage unit
600: communication unit
700: control unit
210: barrier
220: slit

Claims (12)

Displaying an image including a 3D object in a display area;
Extracting an area of the display area in which the 3D object is displayed; And
And 3D processing the extracted region through a liquid crystal panel.
The method of claim 1, wherein the image control method of the display device is
And separating and extracting the right eye image and the left eye image from the image including the displayed 3D object.
The method of claim 1, wherein the 3D region processing step
And performing on / off control of the pixels of the liquid crystal panel.
The method of claim 1, wherein extracting the area where the 3D object is displayed is performed.
The image control method of the display device, characterized in that performed using at least one of the position, size, and shape of the displayed 3D object.
The method of claim 1, wherein the 3D region processing step
The image control method of the display apparatus, characterized in that performed when a specific event signal is received.
The method of claim 1, wherein the 3D region processing step
And controlling the 3D image to be realized separately from the 2D image.
A display unit including a display area on which an image including a 3D object is displayed;
A 3D region processor configured to extract a region where the 3D object is displayed among the display regions and process the extracted region through a 3D region through a liquid crystal panel;
A storage unit storing 2D and 3D image information; And
And a controller which controls the display, the 3D region processor, and the storage as a whole.
The method of claim 7, wherein the display device
And a 3D image processor for separating and extracting the right eye image and the left eye image from the image including the displayed 3D object.
The method of claim 7, wherein the 3D region processing unit
And a 3D region process by controlling on / off pixels of the liquid crystal panel.
8. The method of claim 7, wherein extracting the area where the 3D object is displayed is
And at least one of a position, a size, and a shape of the displayed 3D object.
The method of claim 7, wherein the 3D region processing unit
And 3D region processing when a specific event signal is received.
The method of claim 7, wherein the 3D region processing unit
And a 3D region process so that the 3D image is implemented separately from the 2D image.

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