KR20110102801A - Method for adjusting 3-dimension image quality, 3d display apparatus, 3d glasses and system for providing 3d image - Google Patents

Abstract

A 3D image quality adjusting method, 3D display device, 3D glasses, and 3D image providing system are provided. The 3D image quality adjusting method acquires attribute information of the 3D glasses from the 3D glasses, and adjusts the image quality of the displayed 3D image according to the acquired attribute information of the 3D glasses. As a result, when viewing a 3D image through the spectacle type 3D display device, it is possible to prevent a phenomenon that the brightness is darkened or the color is degraded by the glasses. Therefore, the viewer can watch the 3D image with the optimum image quality.

Description

3D image quality adjustment method, 3D display device, 3D glasses and 3D image providing system {Method for adjusting 3-Dimension image quality, 3D display apparatus, 3D glasses and System for providing 3D image}

The present invention relates to a 3D image quality adjusting method, a 3D display device, 3D glasses and a 3D image providing system, and more particularly, a 3D image quality adjusting method of alternately displaying a left eye image and a right eye image, a 3D display apparatus, and 3D. It relates to glasses and a 3D image providing system.

3D stereoscopic image technology has various applications such as information communication, broadcasting, medical care, education, training, military, game, animation, virtual reality, CAD, industrial technology, and the like. It is the core technology of communication.

In general, the three-dimensional sense perceived by a person is caused by the degree of change in the thickness of the lens depending on the position of the object to be observed, the difference in angle between the two eyes and the object, the difference in the position and shape of the visible object in the left and right eyes, and the movement of the object. Lag and other effects such as various psychological and memory effects are produced in combination.

Among them, binocular disparity, which appears as the human eyes are positioned about 6 to 7 cm apart in the horizontal direction, can be said to be the most important factor of the three-dimensional effect. In other words, the binocular parallax makes us look at the angle with respect to the object, and because of this difference, the images coming into each eye have different images, and when these two images are transmitted to the brain through the retina, You can feel the original 3D stereoscopic image by fusion with each other exactly.

The 3D display device is divided into glasses type using special glasses and non-glass type not using special glasses. Eyeglass type is a color filter method that separates and selects images by using a color filter having a complementary color relationship, a polarization filter method that separates images of left and right eyes using a light shielding effect by a combination of orthogonal polarizing elements, and a left eye video signal and a right eye There is a shutter glass system that allows the user to feel a three-dimensional effect by alternately blocking the left and right eyes in response to a synchronization signal for projecting an image signal onto the screen.

On the other hand, when using the spectacle 3D display device, the viewer must watch the image displayed on the 3D display device with the 3D glasses. At this time, as the 3D image passes through the 3D glasses, the viewer views an image different from the 3D image displayed on the 3D display apparatus. For example, the viewer may view an image of which brightness is reduced or an image of which color is distorted than an image displayed on the 3D display device.

In this case, the conventional 3D display device does not adjust the image quality based on the image quality viewed by the viewer after wearing glasses by outputting the same image quality as the 2D image with the same image quality setting as the 2D image quality. Therefore, the viewer is watching a 3D image that the screen is dark and the color is not bright.

Therefore, even if the 3D image passes through the 3D glasses, it is required to seek a method for adjusting the 3D image quality so that the viewer can watch the 3D image with the optimum image quality.

The present invention has been made to solve the above problems, an object of the present invention, 3D image quality adjustment method for adjusting the image quality of the displayed 3D image according to the attribute information of the 3D glasses obtained from the outside, 3D display An apparatus, 3D glasses, and 3D image providing system are provided.

According to an embodiment of the present invention, a method of adjusting 3D image quality of a 3D display apparatus displaying a 3D image in association with 3D glasses comprises: obtaining attribute information of the 3D glasses; and the 3D And adjusting the quality of the displayed 3D image according to the attribute information of the glasses.

The attribute information of the 3D glasses includes: transmittance of light transmitted through the 3D glasses, contrast change rate of an image transmitted through the 3D glasses, change rate of color hue of the image transmitted through the 3D glasses, The 3D glasses may include at least one of a sharpness change rate of the image transmitted through the 3D glasses, information on the type of the 3D glasses, and manufacturer information of the 3D glasses.

The adjusting may include adjusting the image quality of the 3D image such that the brightness of the 3D image is increased according to the information about the transmittance of light transmitted through the 3D glasses.

The adjusting may include adjusting the image quality of the 3D image such that the contrast ratio of the 3D image is increased according to the information on the contrast change rate of the image transmitted through the 3D glasses.

The adjusting may include adjusting the image quality of the 3D image to the complementary color of the color changed when the 3D image is transmitted through the 3D glasses according to the information on the color change rate of the image transmitted to the 3D glasses. I can adjust it.

The attribute information of the 3D glasses may be received from the 3D glasses.

The acquiring may include acquiring attribute information of the 3D glasses from the 3D glasses when it is determined that the 3D glasses are worn by the viewer.

The acquiring may include acquiring attribute information of the 3D glasses from the 3D glasses when it is determined that the attribute information of the 3D glasses is changed during the reproduction of the 3D image.

On the other hand, according to an embodiment of the present invention for achieving the above object, the 3D display device for displaying a 3D image in conjunction with the 3D glasses, the display unit for displaying a 3D image; A communication unit for communicating with an external device to receive attribute information of the 3D glasses; And a controller configured to adjust the quality of the displayed 3D image according to attribute information of the 3D glasses acquired from the external device.

The optical information of the 3D glasses may include a transmittance of light transmitted through the 3D glasses, a change rate of contrast of an image transmitted through the 3D glasses, a change rate of color hue of an image transmitted through the 3D glasses, The 3D glasses may include at least one of a sharpness change rate of the image transmitted through the 3D glasses, information on the type of the 3D glasses, and manufacturer information of the 3D glasses.

The controller may adjust the image quality of the 3D image such that the brightness of the 3D image is increased according to the information about the transmittance of light transmitted through the 3D glasses obtained from the communication unit.

The controller may adjust the image quality of the 3D image such that the contrast ratio of the 3D image is increased according to the information on the contrast change rate of the image transmitted through the 3D glasses obtained from the communication unit.

The controller may adjust the color of the 3D image to the complementary color of the color changing when the 3D glasses are transmitted through the 3D glasses according to the information on the color change rate of the image transmitted through the 3D glasses obtained from the communication unit. You can adjust the picture quality.

The communication unit may receive attribute information of the 3D glasses from the 3D glasses.

In addition, when it is determined that the 3D glasses are worn by the viewer, the communication unit may receive attribute information of the 3D glasses from the 3D glasses.

The communication unit may receive attribute information of the 3D glasses from the 3D glasses when it is determined that the attribute information of the 3D glasses is changed during the reproduction of the 3D image.

Meanwhile, in the 3D image quality adjusting method of the 3D display apparatus for displaying a 3D image in conjunction with the 3D glasses and an external playback device according to an embodiment of the present invention, the attribute information of the 3D glasses Obtaining; Transmitting attribute information of the 3D glasses to the external player; Receiving a 3D image of which image quality is adjusted according to attribute information of the 3D glasses; And displaying the 3D image of which the image quality is adjusted.

The transmitting may be performed by using one of HDMI DDC communication, HDMI CEC communication, and Ethernet communication.

In addition, when the HDMI DDC communication is used, attribute information of the 3D glasses may be stored and transmitted in EDID information.

On the other hand, according to an embodiment of the present invention for achieving the above object, the 3D display device for displaying a 3D image in conjunction with the 3D glasses and an external playback device, the display unit for displaying a 3D image; A first communication unit communicating with the 3D glasses; A second communication unit communicating with the external playback device; and controlling to transmit the attribution information of the 3D glasses acquired from the first communication unit to an external playback device, and adjusting the 3D image whose image quality is adjusted according to the attribution information of the 3D glasses. And a controller configured to control the display to be received from the external player.

The second communication unit may communicate with the external playback device using one of HDMI DDC communication, HDMI CEC communication, and Ethernet communication.

The second communication unit may store and transmit attribute information of the 3D glasses in EDID information when the HDMI DDC communication is used.

On the other hand, according to an embodiment of the present invention for achieving the above object, the 3D glasses that can watch the 3D image in conjunction with the 3D display device, 3D glasses communication unit for communicating with the 3D display device; A storage unit storing attribute information of the 3D glasses; And a control unit for controlling to transmit the attribute information of the 3D glasses to the 3D display apparatus.

The attribute information of the 3D glasses includes: transmittance of light transmitted through the 3D glasses, contrast change rate of an image transmitted through the 3D glasses, change rate of color hue of the image transmitted through the 3D glasses, The 3D glasses may include at least one of a sharpness change rate of the image transmitted through the 3D glasses, information on the type of the 3D glasses, and manufacturer information of the 3D glasses.

In addition, when it is determined that the 3D glasses are worn, the controller may control to transmit the attribute information of the 3D glasses to the display device.

The controller may control to transmit the changed attribute information of the 3D glasses to the 3D display apparatus when it is determined that the attribute information of the 3D glasses is changed during the 3D image reproduction.

Meanwhile, a 3D image providing system including 3D glasses and a 3D display device includes: 3D glasses for storing attribute information of the 3D glasses and transmitting attribute information of the 3D glasses to the 3D display device; and attribute information of the 3D glasses. And a 3D display apparatus for automatically adjusting and displaying an image quality of the 3D image according to attribute information of the 3D glasses.

As described above, according to the present invention, when the 3D image is viewed through the spectacle type 3D display device, the brightness may be darkened or the color may be reduced by the glasses. Therefore, the viewer can watch the 3D image with the optimum image quality.

1 is a diagram illustrating a 3D image providing system according to an embodiment of the present invention;
2 is a block diagram of a 3D TV according to an embodiment of the present invention;
3A and 3B are views for explaining a method of adjusting image quality of a 3D image by using information on light transmittance transmitted through 3D glasses according to an embodiment of the present invention;
4 is a block diagram of 3D glasses, according to an embodiment of the present invention;
5 is a flowchart illustrating a method of adjusting image quality of a 3D image according to an embodiment of the present invention;
6 is a block diagram of a 3D TV adjusting an image quality of a 3D image using an external playback apparatus according to an embodiment of the present invention.
7 is a flowchart illustrating an image quality adjusting method of a 3D image in which an image quality of a 3D image is adjusted using an external playback apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a diagram illustrating a 3D image providing system 100 according to an embodiment of the present invention. As shown, the 3D image providing system 100 is composed of a 3D TV 110 for displaying a 3D image on the screen and 3D glasses 120 for viewing the 3D image.

The 3D TV 110 is a kind of display device, which receives a 3D image received from a photographing apparatus such as a camera or a 3D image taken by a camera, edited / processed by a broadcasting station, and then transmitted by the broadcasting station, and receives the received 3D image. After processing, display it on the screen. In particular, the 3D TV 110 processes the left eye image and the right eye image with reference to the format of the 3D image, and allows the processed left eye image and the right eye image to be time-divisionally displayed alternately.

In addition, the 3D TV 110 generates a synchronization signal synchronized with the timing in which the left eye image and the right eye image are time-divisionally displayed, and transmits them to the 3D glasses 120. The sync signal is generated by periodically generating a plurality of pulses for each vertical sync signal Vsync of the TV 110.

In addition, the 3D TV 110 obtains attribute information of the 3D glasses 120 from an external device. Here, the attribute information of the 3D glasses includes the transmittance of light transmitted through the 3D glasses, the contrast change rate of the image transmitted through the 3D glasses, the change rate of the color hue of the image transmitted through the 3D glasses, and the transmission through the 3D glasses. It may include at least one of the rate of change of the sharpness of the image, information on the type of the 3D glasses, and manufacturer information of the 3D glasses. The 3D TV 110 automatically adjusts and outputs the image quality of the 3D image according to the acquired attribute information.

Reference will be made to FIG. 2 for a detailed configuration of such a 3D TV 110. 2 is a block diagram of a 3D TV 110 according to an embodiment of the present invention.

As shown, the 3D TV 110 according to the present embodiment includes an image receiving unit 111, an image processing unit 112, a display unit 113, a control unit 114, and a graphical user interface (GUI) generating unit 115. , A storage unit 116, a viewer command receiving unit 117, and a communication unit 118.

The image receiving unit 111 receives and demodulates a broadcast received by wire or wireless from a broadcasting station or a satellite. In addition, the image receiving unit 111 is connected to an external playback device such as a DVD player to receive a 3D image from the external playback device. The external player may be connected wirelessly, or may be wired through an interface such as S-video, component, composite, D-Sub, DVI, HDMI, or the like.

In this case, the 3D image received by the image receiving unit 111 may be in a variety of formats, in particular, among the general frame sequence method, top-bottom method, side-by-side method, horizontal interleave method, vertical interleave method, and checkerboard method It may be in a format according to one.

The image receiver 111 transmits the received 3D image to the image processor 112.

The image processor 112 performs operations such as video processing, signal analysis such as video decoding, format analysis, video scaling, and GUI addition on the 3D image received by the image receiver 111. In particular, the image processor 112 generates a left eye image and a right eye image corresponding to the size of one screen (1920 * 1080), respectively, using the format of the 3D image input to the image receiver 111. In addition, the image processor 112 allows the GUI received from the GUI generator 115 to be described later to be added to the left eye image, the right eye image, or both.

In addition, the image processor 112 processes the 3D image to adjust the image quality of the 3D image according to the attribute information of the 3D glasses 120 received from the outside under the control of the controller 114. A detailed method of adjusting 3D image quality will be described later.

The image processor 112 time-divisions the extracted left eye image and the right eye image, and alternately transfers the extracted left eye image to the display unit 113. That is, the image processing unit 112 is a left eye image (L1)-> right eye image (R1)-> left eye image (L2)-> right eye image (R2)->. The left eye image and the right eye image are transmitted to the display unit 113 in the temporal order of '.

The display unit 113 alternately outputs the left eye image and the right eye image output from the image processor 112 and provides the viewer with the left eye image.

The GUI generating unit 115 generates a GUI to be displayed on the display. The GUI generated by the GUI generator 115 is applied to the image processor 112 and added to the left eye image, right eye image, or both to be displayed on the display.

In particular, when the image quality of the 3D image is automatically adjusted according to the attribute information of the 3D glasses, the GUI generator 115 may generate an OSD type GUI including information indicating that the image quality of the 3D image is adjusted.

The storage unit 116 is a storage medium that stores various programs necessary for operating the 3D TV 110, and may be implemented as a memory, a hard disk drive (HDD), or the like.

The viewer command receiving unit 117 transmits a viewer command received from an input means such as a remote controller to the control unit 114.

The communication unit 118 generates a synchronization signal synchronized with the left eye image and the right eye image that are alternately output, and transmits the generated synchronization signal to the 3D glasses 120. That is, through synchronization between the TV 110 and the 3D glasses 120, the 3D glasses 120 are alternately opened and closed, the left eye image is displayed on the display 113 in the left eye open period of the 3D glasses 120, The right eye image is displayed on the display 113 during the right eye open period of the 3D glasses 120.

In addition, the communication unit 118 receives a signal including attribute information of the 3D glasses 120 from an external device, in particular, the 3D glasses 120. In this case, a signal including attribute information of the 3D glasses 120 may be received through wireless communication or wired communication such as RF communication or infrared communication.

In addition, the attribution information of the 3D glasses 120 is the transmittance of light transmitted through the 3D glasses 120, the contrast change rate of the image transmitted to the 3D glasses 120, the color change rate of the image transmitted to the 3D glasses 120, 3D It includes at least one of the sharpness change rate of the image transmitted through the glasses 120, the information on the type of the 3D glasses 120 and the manufacturer information of the 3D glasses 120.

In addition, when it is determined that the 3D glasses 120 are worn by the viewer, the communication unit 118 may receive attribute information of the 3D glasses 120 from the 3D glasses 120. In this case, determining that the 3D glasses 120 are worn by the viewer may be determined by a signal transmitted to the 3D TV 110 when the 3D glasses 120 detects the viewer's wearing through the sensor unit (not shown). have.

In addition, when the communication unit 118 determines that the attribute information of the 3D glasses 120 is changed during the reproduction of the 3D image, the communication unit 118 may receive the attribute information of the 3D glasses 120 from the 3D glasses 120. For example, when the shutter speed of the 3D glasses 120 is adjusted so that the amount of light transmitted by the 3D glasses 120 is changed, the communication unit 118 may change attribute information of the new 3D glasses 120 from the 3D glasses 120. Can be received.

The controller 114 controls the overall operation of the 3D TV 110 according to the viewer command received from the viewer command receiver 117.

In particular, the controller 114 controls the image receiving unit 111 and the image processing unit 112 so that a 3D image is received, and the received 3D image is divided into a left eye image and a right eye image, respectively. Allows scaling or interpolation to a size that can be displayed on this single screen. In addition, the controller 114 controls the GUI generator 115 to generate a GUI corresponding to the viewer command received from the viewer command receiver 117, and controls the communicator 118 to control the left eye image and the right eye image. A synchronization signal synchronized with the output timing of the signal is generated and transmitted.

In addition, the controller 114 controls the image processor 112 to automatically adjust the image quality of the 3D image according to the attribute information of the 3D glasses 120 received from the communication unit 118. At this time, the attribute information of the 3D glasses 120 is transmitted to the light transmittance of the 3D glasses 120, the contrast change rate of the image transmitted to the 3D glasses 120, the 3D glasses 120 At least one of a rate of change of color Hue of the transmitted image, a rate of change of sharpness of the image transmitted to the 3D glasses 120, information about the type of the 3D glasses 120, and manufacturer information of the 3D glasses.

For example, when receiving the information on the transmittance of the light transmitted through the 3D glasses 120, the controller 114 increases the brightness of the 3D image according to the information on the transmittance of the light transmitted through the 3D glasses 120. Adjust so that Hereinafter, a method of adjusting the image quality of the 3D image according to the transmittance of light transmitted through the 3D glasses 120 will be described in detail with reference to FIGS. 3A and 3B.

3A is a diagram illustrating brightness of a 3D image viewed by a viewer when the image quality of the 3D image is not adjusted. As shown in FIG. 3A, when the 3D image is output from the 3D TV 110 and passes through the 3D glasses 120, the brightness of the 3D image visible to the viewer becomes dark. For example, when the light transmittance of the 3D glasses is 80%, if the brightness of the image output from the 3D TV 110 is 100, the viewer has a brightness of 80% of the 3D image viewed through the 3D glasses 120. Will be. Accordingly, the viewer may view a darker 3D image than the image output from the 3D TV 110.

In order to solve this problem, the controller 114 adjusts the image quality of the 3D image by using information on the transmittance of light transmitted through the 3D glasses 120 obtained from the 3D glasses 120 through the communication unit 118. The image processor 112 is controlled.

3B is a diagram illustrating brightness of 3D images viewed by a viewer when image quality of 3D images is adjusted according to an exemplary embodiment of the present invention. In detail, the controller 114 controls the image processor 112 to increase the brightness of the 3D image displayed through the transmittance information of the light transmitted from the 3D glasses 120 to the 3D glasses 120. For example, when the light transmittance information of the first 3D glasses received from the 3D glasses includes information that the light transmittance of the first 3D glasses is 80%, the control unit 114 may determine the image that the viewer wants to watch. In order to make the brightness 100, the image processor 112 is controlled so that the brightness of the light of the 3D image is 125.

In addition, when the light transmittance information of the second 3D glasses 120 received from the second 3D glasses includes information that the transmittance of the light transmitted through the second 3D glasses is 66.6%, the controller 114 may view the viewer. In order to make the brightness of the image to be 100, the image processor 112 may be controlled so that the brightness of the 3D image is 150.

Therefore, even if the viewer views the 3D image using other 3D glasses, by using the transmittance information of the light included in the 3D glasses 120, the viewer can watch the 3D image of the general brightness. However, the numerical values mentioned for explaining the above-described embodiments are not limited thereto.

Referring back to FIG. 2, when the information on the contrast ratio change rate of the image transmitted to the 3D glasses 120 is received, the controller 114 may adjust the contrast change rate of the image transmitted to the 3D glasses 120. The contrast ratio of the 3D image is increased according to the information.

For example, when the contrast ratio of an image that a user generally watches without using 3D glasses is 500: 1 and the contrast change rate of the image transmitted to the first 3D glasses is -20%, the controller 114 controls the viewer. In order for the contrast ratio of the image to be viewed to be 500: 1, the image processor 112 is controlled so that the contrast ratio of the 3D image is 625: 1.

In addition, when receiving information on the rate of change of the color Hue of the image transmitted to the 3D glasses 120, the control unit 114 of the 3D image according to the color change rate information of the image transmitted to the 3D glasses 120 Adjust the color For example, when the 3D image is transmitted through the 3D glasses 120, when the information includes a red color as a whole, the controller 114 may control the image processor to process the 3D image as a blue color, which is a complementary color of the red color. Control 112. Therefore, the control unit 114 outputs the complementary color of the color change of the image transmitted to the 3D glasses 120, the 3D TV 110 can prevent the color change.

In addition, when receiving information on the rate of change of sharpness of the image transmitted to the 3D glasses 120, the controller 114 adjusts the color of the 3D image according to the rate of change of the sharpness of the image transmitted to the 3D glasses 120. For example, in the case of including the information that the rate of change of the clarity of the image transmitted through the 3D glasses is reduced by 20%, the controller 114 may adjust the clarity of the 3D image so that the viewer may have a clarity of 100. The image processor 112 is controlled to be 125.

In addition, when receiving information about the type of the 3D glasses 120, the controller 114 adjusts the image quality of the 3D image according to the information about the type of the 3D glasses. For example, when the information of the shutter type 3D glasses is received, the controller 114 adjusts the image quality of the 3D image in consideration of the shutter speed of the 3D glasses 120. In addition, when information about the polarized 3D glasses is received, the controller 114 adjusts the image quality of the 3D image in consideration of the amount of light incident after being polarized by the 3D glasses 120.

In addition, when receiving the manufacturer information of the 3D glasses, the controller 114 adjusts the quality of the 3D image according to the manufacturer of the 3D glasses. In this case, the optical information of the 3D glasses according to the manufacturer may be stored in the storage unit 116 of the 3D TV 110.

Light transmittance Contrast Ratio Change Rate Color change rate Clarity change rate Glasses type A company 80% 20% reduction gules 20% reduction shutter Company B 66.6% 10% reduction Blue 15% reduction Polarized light Company C 100% 5% reduction none. 10% reduction shutter

For example, when the optical information according to the manufacturer is shown in Table 1,

When the manufacturer of the 3D glasses receives the information that the company A from the communication unit 118, the control unit 114 to the brightness of the light transmitted through the 3D glasses 120 is 100, the brightness of the output 3D image is 125 Process to be In addition, the controller 114 processes the contrast ratio of the output 3D image to 625: 1 so that the contrast ratio of the 3D image viewed by the viewer becomes 500: 1. In addition, the controller 114 processes the color of the output 3D image to a blue complementary color of red in order not to change the color of the 3D image viewed by the viewer. In addition, the controller 114 processes the clarity of the output 3D image to be 125 so that the clarity of the 3D image viewed by the viewer becomes 100. In addition, considering that the type of the 3D glasses of the company A is the shutter type, the controller 114 calculates the shutter speed and the like and processes the image quality of the 3D image output.

 When the manufacturer of the 3D glasses receives the information that the company B from the communication unit 118, the control unit 114 to the brightness of the light transmitted through the 3D glasses 120 is 100, the brightness of the output 3D image is 150 Process to be In addition, the controller 114 processes the contrast ratio of the output 3D image to 556: 1 so that the contrast ratio of the 3D image viewed by the viewer becomes 500: 1. In addition, the controller 114 processes the color of the output 3D image to be a red complementary color of blue in order not to change the color of the 3D image viewed by the viewer. In addition, the controller 114 processes the clarity of the output 3D image to be 118 so that the clarity of the 3D image viewed by the viewer becomes 100. In addition, considering that the type of 3D glasses of the company A is the polarization type, the controller 114 calculates the amount of light incident after being polarized and processes the image quality of the output 3D image.

When the manufacturer of the 3D glasses receives the information that the company C from the communication unit 118, since the C glasses transmit the light of 100%, the controller 114 controls to output the brightness of the image as it is. In addition, the controller 114 processes the contrast ratio of the output 3D image to 526: 1 so that the contrast ratio of the 3D image viewed by the viewer becomes 500: 1. In addition, the glasses of company C have no color change, and the controller 114 controls to output the color of the image as it is. In addition, the controller 114 processes the clarity of the output 3D image to be 111 so that the clarity of the 3D image viewed by the viewer becomes 100. In addition, considering that the type of the 3D glasses of the company A is the shutter type, the controller 114 calculates the shutter speed and the like and processes the image quality of the 3D image output.

Accordingly, the 3D TV 110 may provide a user with more optimal 3D image quality according to the manufacturer's information.

Referring back to FIG. 1, the 3D glasses 120 alternately opens and closes the left eye glass and the right eye glass according to the synchronization signal received from the 3D TV 110, so that the user may view the left eye image and the right eye image through the left eye and the right eye. To make each viewable.

In addition, the 3D glasses 120 transmits attribute information of the 3D glasses 120 to the 3D TV 110 so that the 3D TV 110 may adjust the quality of the 3D image. Hereinafter, a detailed configuration of the 3D glasses 120 will be described with reference to FIG. 3.

4 is a block diagram of the 3D glasses 120 according to an embodiment of the present invention. As shown, the 3D glasses 120 includes a 3D glasses communication 121, a controller 122, a glass driver 123, and a glass unit 124.

The 3D glasses communication unit 121 receives a synchronization signal for the 3D image from the communication unit 118 of the 3D TV 110 connected by wire or wirelessly.

In addition, the 3D glasses communication unit 121 transmits a signal including attribute information of the 3D glasses to the communication unit 118 of the 3D TV 110. In this case, a signal including attribute information of the 3D glasses 120 may be transmitted to the communication unit 118 of the 3D TV 110 through RF communication, infrared communication, or wired communication.

In addition, the attribution information of the 3D glasses 120 may include the transmittance of light transmitted through the 3D glasses 120, the contrast change rate of the image transmitted through the 3D glasses 120, and the color of the image transmitted through the 3D glasses 120. At least one of a change rate of (Color Hue), a change rate of the sharpness of the image transmitted through the 3D glasses 120, information on the type of the 3D glasses 120, and manufacturer information of the 3D glasses 120.

In addition, when it is determined that the 3D glasses 120 are worn by the viewer through the sensor unit (not shown), the 3D glasses communication unit 121 may display the 3D glasses 120 with information that the viewer wears the 3D glasses 120. Send attribute information. In this case, the information on whether the 3D glasses 120 are worn and the attribute information of the 3D glasses 120 may be transmitted by one signal or may be transmitted by a separate signal.

In addition, when the attribute information of the 3D glasses 120 is changed during the reproduction of the 3D image, for example, when the shutter speed of the 3D glasses 120 is adjusted, the 3D glasses communication unit 118 displays the attributes of the 3D glasses 120. The attribute information of the new 3D glasses 120 is transmitted along with the information that the information has been changed. In this case, the information that the attribution information of the 3D glasses 120 has been changed and the attribution information of the new 3D glasses 120 may also be transmitted by one signal or may be transmitted by a separate signal.

The controller 122 controls the operation of the overall 3D glasses 120. In particular, the controller 122 generates a control signal based on the output signal received from the transceiver 121, and transfers the generated control signal to the glass driver 123 to control the glass driver 123. In particular, the controller 122 controls the glass driver 123 such that a driving signal for driving the glass unit 124 is generated by the glass driver 123 based on the output signal.

In addition, when it is determined that the 3D glasses 120 are worn by the user, the controller 122 transmits the attribute information of the 3D glasses 120 together with the information that the viewer wears the 3D glasses 120. 121).

In addition, when the attribute information of the 3D glasses 120 is changed during the reproduction of the 3D image, for example, when the shutter speed of the 3D glasses 120 is adjusted, the controller 121 displays the attribute information of the 3D glasses 120. The 3D glasses communication unit 121 is controlled to transmit the attribute information of the new 3D glasses 120 together with the changed information.

The glass driver 123 generates a driving signal based on the control signal received from the controller 122.

The glass unit 124 includes a left eye glass and a right eye glass, and opens and closes each glass according to a driving signal received from the glass driver 123.

The storage unit 125 stores attribute information of the 3D glasses 120. Here, the attribute information of the 3D glasses 120 may include the transmittance of light transmitted through the 3D glasses 120, the change rate of contrast of the image transmitted through the 3D glasses 120, the change rate of color of the image transmitted through the 3D glasses 120, and the like. It includes at least one of the sharpness change rate of the image transmitted to the 3D glasses 120, information about the type of the 3D glasses 120 and the manufacturer information of the 3D glasses 120. In particular, the storage unit 125 may be implemented as a memory, a hard disk drive (HDD), or the like.

5 is a flowchart illustrating a method of adjusting image quality of a 3D image according to an embodiment of the present invention.

First, the 3D TV 110 obtains attribute information of the 3D glasses 120 from the 3D glasses 120 (S510). In this case, the acquired attribute information of the 3D glasses 120 may include the transmittance of light transmitted through the 3D glasses 120, the contrast change rate of the image transmitted through the 3D glasses 120, and the color of the image transmitted through the 3D glasses 120. It includes at least one of the rate of change, the rate of change of sharpness of the image transmitted through the 3D glasses 120, information on the type of the 3D glasses 120, and manufacturer information of the 3D glasses 120. In this case, the 3D TV 110 obtains attribute information of the 3D glasses 120 from the 3D glasses 120 using one of RF communication, infrared communication, and wired communication. In this case, when the 3D TV 110 acquires information that the 3D glasses 120 are worn by the user, or when the 3D glasses 120 acquires information that the attribute information of the 3D glasses 120 has been changed, the 3D glasses 110 may receive the 3D glasses from the 3D glasses 120. Attribute information of 120 may be obtained.

The 3D TV 110 adjusts the image quality of the 3D image according to the acquired attribute information of the 3D glasses 120 (S520). Specifically, when the transmittance of the light transmitted through the 3D glasses 120 is obtained, the 3D TV 110 according to the information on the transmittance of the light transmitted through the 3D glasses 120, the 3D image to increase the brightness of the 3D image You can adjust the picture quality. In addition, when the information on the rate of change of the contrast ratio of the image transmitted to the 3D glasses is obtained, the 3D TV 110 according to the information on the rate of change of the contrast of the image transmitted to the 3D glasses 120, the contrast ratio of the 3D image The image quality of the 3D image can be adjusted to increase. In addition, when the information on the color change rate of the image transmitted to the 3D glasses is obtained, the 3D TV 110 may adjust the color sense of the 3D image according to the information on the color change rate of the image transmitted to the 3D glasses 120. have. In addition, as described with reference to FIG. 2, the 3D TV 110 uses the information regarding the sharpness change rate of the image transmitted through the 3D glasses 120, the type of the 3D glasses 120, and the manufacturer information of the 3D glasses 120. You can adjust the quality of 3D video.

After the image quality of the 3D image is adjusted according to the attribute information of the 3D glasses 120, the 3D TV 110 outputs the 3D image with the image quality adjusted (S530). In this case, the left 3D image and the right eye image are alternately displayed in the output 3D image so that a user may feel a 3D effect.

   As described above, when the image quality of the 3D image is adjusted using the attribute information of the 3D glasses 120, when the 3D image is viewed through the spectacle 3D display device, the brightness is darkened or the color is degraded by the glasses. It becomes possible to prevent it. Therefore, the viewer can watch the 3D image with the optimum image quality.

Hereinafter, another embodiment of adjusting the image quality of the 3D image using the attribute information of the 3D glasses 120 will be described with reference to FIGS. 6 and 7. 6 is a block diagram of a 3D TV 110 according to another embodiment of the present invention.

As shown, the 3D TV 110 according to an embodiment of the present invention includes an image receiving unit 611, an image processing unit 612, a display unit 613, a control unit 614, a graphical user interface (GUI) generation unit. 615, a storage unit 616, a viewer command receiving unit 617, a first communication unit 618, and a second communication unit 619.

The image receiver 611 receives and demodulates an image received through the second communication unit 619. In particular, the image receiver 611 is connected to an external player such as a DVD player through the second communication unit 619 to receive a 3D image from the external player.

Also, the image receiver 619 receives a 3D image whose image quality is adjusted according to the attribute information of the 3D glasses 120 from the external playback device through the second communication unit 619.

The image receiver 611 transfers the received 3D image to the image processor 612.

The image processor 612 performs a signal processing such as video decoding, format analysis, video scaling, and GUI addition on the 3D image received from the image receiver 611. In this case, the 3D image received from the image receiving unit 611 is an image whose image quality is adjusted by an external playback device according to the attribute information of the 3D glasses 120.

In addition, the image processor 612 generates a left eye image and a right eye image corresponding to the size of one screen (1920 * 1080), respectively, using the format of the 3D image input to the image receiver 611. In addition, the image processor 612 allows the GUI received from the GUI generator 615 to be described later to be added to the left eye image, the right eye image, or both.

The image processor 612 performs time division of the extracted left eye image and right eye image, and alternately transfers the extracted left eye image to the display unit 613. In other words, the image processing unit 612 is the left eye image (L1)-> right eye image (R1)-> left eye image (L2)-> right eye image (R2)->. The left eye image and the right eye image are transmitted to the display unit 613 in the temporal order of '.

The display unit 613 alternately outputs the left eye image and the right eye image output from the image processor 612 to provide to the viewer.

The GUI generator 615 generates a GUI to be displayed on the display. The GUI generated by the GUI generator 615 is applied to the image processor 612 and added to the left eye image, the right eye image, or both to be displayed on the display.

The storage unit 616 is a storage medium that stores various programs necessary for operating the 3D TV 610 and may be implemented as a memory, a hard disk drive (HDD), or the like.

The viewer command receiver 617 transmits the viewer command received from an input means such as a remote controller to the controller 614.

The first communication unit 618 generates a synchronization signal synchronized with the left eye image and the right eye image that are alternately output, and transmits the generated synchronization signal to the 3D glasses 120. This is because, through synchronization between the 3D TV 610 and the 3D glasses 120, the 3D glasses 120 are alternately opened and closed so that the left eye image is displayed on the display unit 613 in the left eye open period of the 3D glasses 120. The right eye image is displayed on the display unit 613 during the right eye open period of the 3D glasses 120.

In addition, the first communication unit 618 receives a signal including attribute information of the 3D glasses 120 from an external device, in particular, the 3D glasses 120. In this case, a signal including attribute information of the 3D glasses 120 may be received through RF communication, infrared communication, or wired communication. At this time, the attribution information of the 3D glasses 120 is the transmittance of light transmitted through the 3D glasses 120, the contrast change rate of the image transmitted through the 3D glasses 120, the color of the image transmitted through the 3D glasses 120 At least one of a change rate of (Color Hue), a change rate of the sharpness of the image transmitted through the 3D glasses 120, information on the type of the 3D glasses 120, and manufacturer information of the 3D glasses 120.

In addition, when it is determined that the 3D glasses 120 are worn by the viewer, the first communication unit 618 may receive attribute information of the 3D glasses 120 from the 3D glasses 120. In this case, determining that the 3D glasses 120 are worn by the viewer may be determined by a signal transmitted to the 3D TV 610 when the 3D glasses 120 detects the viewer's wearing through the sensor unit (not shown). have.

In addition, when the first communication unit 618 determines that the attribute information of the 3D glasses 120 is changed during the reproduction of the 3D image, the first communication unit 618 may receive the attribute information of the 3D glasses 120 from the 3D glasses 120. For example, when the shutter speed of the 3D glasses 120 is adjusted so that the amount of light transmitted by the 3D glasses 120 is changed, the first communication unit 618 may be configured to replace the new 3D glasses 120 from the 3D glasses 120. Attribute information can be received.

The second communication unit 619 is connected to the external playback device to transmit and receive signals. In particular, the second communication unit 619 transmits attribute information of the 3D glasses 120 received from the 3D glasses 120 to the external player.

The second communication unit 619 receives a 3D image of which image quality is adjusted according to attribute information of the 3D glasses 120 from an external playback device.

At this time, the second communication unit 619 may communicate with the external playback device using one of the HDMI DDC communication, HDMI CEC communication and Ethernet (Ethernet) communication. In particular, when the second communication unit 619 uses HDMI DDC communication, attribute information of the 3D glasses 120 may be stored and transmitted in extended display indentification data (EDID) information.

The controller 614 controls the overall operation of the 3D TV 610 according to the viewer command received from the viewer command receiver 617.

In particular, the controller 614 controls the first communication unit 618 to obtain attribute information of the 3D glasses 120 from the 3D glasses 120. The controller 614 transmits the attribute information of the 3D glasses 120 obtained by controlling the second communication unit 619 to an external player.

The controller 614 is connected to the external playback device through the second communication unit 619 and receives a 3D image in which the external playback device adjusts the image quality according to the attribute information of the 3D glasses 120. In this case, the method of adjusting the image quality by the external player is the same as described with reference to FIGS. 2 and 3.

The controller 614 controls the image receiver 611 and the image processor 612 so that the received 3D image is divided into a left eye image and a right eye image, and each of the separated left eye image and the right eye image may be displayed on one screen. Try to scale or interpolate to the desired size.

7 is a flowchart illustrating an image quality adjusting method of a 3D image in which an image quality of a 3D image is adjusted using an external playback apparatus according to an embodiment of the present invention.

The 3D TV 610 obtains attribute information of the 3D glasses 120 from the 3D glasses 120 (S710). At this time, the attribute information of the 3D glasses 120 includes the transmittance of light transmitted through the 3D glasses 120, the contrast change rate of the image transmitted through the 3D glasses 120, and the color of the image transmitted through the 3D glasses 120. At least one of a change rate of (Color Hue), a change rate of the sharpness of the image transmitted through the 3D glasses 120, information on the type of the 3D glasses 120 and the manufacturer information of the 3D glasses 120 is included.

The 3D TV 610 transmits attribute information of the 3D glasses 120 obtained from the 3D glasses 120 to an external player (S720). In this case, the 3D TV 610 may transmit attribute information of the 3D glasses 120 to an external playback device using one of HDMI DDC communication, HDMI CEC communication, and Ethernet (Ethernet) communication. In particular, when the 3D TV 610 uses HDMI DDC communication, attribute information of the 3D glasses 120 may be stored and transmitted in extended display indentification data (EDID) information.

The 3D TV 610 receives a 3D image of which image quality is adjusted according to attribute information of the 3D glasses 120 from an external player (S730). In this case, the method of adjusting the image quality of the 3D image according to the attribute information of the 3D glasses 120 is the same as described with reference to FIGS. 2 and 3.

In operation S740, the 3D TV 610 processes and displays the received 3D image. In this case, the left 3D image and the right eye image are alternately displayed in the output 3D image so that a user may feel a 3D effect.

   As described above, when the 3D image of which the image quality is adjusted according to the attribute information of the 3D glasses 120 is received from an external playback device, when the 3D image is viewed through the spectacle 3D display device, the brightness is darkened or the color is changed by the glasses. The phenomenon of deterioration can be prevented. Therefore, the viewer can watch the 3D image with the optimum image quality.

In the above description, it is assumed that the 3D display device is the 3D TV 110. However, this is only an example, and any 3D display device capable of displaying a shutter glass type 3D image may be applied to the technical idea of the present invention. For example, the 3D display device may be implemented as a 3D projection, a 3D monitor, or the like.

In addition, the attribute information of the 3D glasses includes the transmittance of light transmitted through the 3D glasses, the contrast change rate of the image transmitted through the 3D glasses, the color change rate of the image transmitted through the 3D glasses, the change rate of the sharpness of the image transmitted through the 3D glasses, and 3D. It is assumed that it includes at least one of information on the type of glasses and manufacturer information of the 3D glasses, but this is only one embodiment, the characteristics that may affect the optical characteristics or image quality of the 3D glasses other than the information described above It may include information about.

 In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

110: 3D TV 111: video receiving unit
112: image processor 113: display unit
114: control unit 115: GUI generation unit
116: storage unit 117: user command receiving unit
118: communication unit 120: 3D glasses
121: 3D glasses communication unit 122: control unit
123: glass drive unit 124: glass unit
125: storage unit

Claims (27)

In the 3D image quality adjustment method of the 3D display device for displaying a 3D image in conjunction with the 3D glasses,
Acquiring attribute information of the 3D glasses; and
And adjusting the image quality of the displayed 3D image according to the attribute information of the 3D glasses. The method of claim 1,
Attribute information of the 3D glasses,
Transmittance of light transmitted through the 3D glasses, Contrast change rate of an image transmitted through the 3D glasses, Change rate of color hue of the image transmitted through the 3D glasses, Change rate of sharpness of the image transmitted through the 3D glasses And at least one of information on a type of the 3D glasses and manufacturer information of the 3D glasses. The method of claim 2,
The adjusting step,
And adjusting the image quality of the 3D image to increase the brightness of the 3D image according to the information on the transmittance of the light transmitted through the 3D glasses. The method of claim 2,
The adjusting step,
And adjusting the image quality of the 3D image such that the contrast ratio of the 3D image is increased according to the information on the contrast change rate of the image transmitted through the 3D glasses. The method of claim 2,
The adjusting step,
The image quality of the 3D image is adjusted by adjusting the color of the 3D image to the complementary color of the color changing when transmitted through the 3D glasses according to the information on the color change rate of the image transmitted through the 3D glasses. How to adjust the quality. The method of claim 1,
Attribute information of the 3D glasses,
And receiving from the 3D glasses. The method of claim 6,
The obtaining step,
And when the 3D glasses are determined to be worn by a viewer, attribute information of the 3D glasses is obtained from the 3D glasses. The method of claim 1,
The obtaining step,
And determining that the attribute information of the 3D glasses is changed during the reproduction of the 3D image, wherein the attribute information of the 3D glasses is obtained from the 3D glasses. In the 3D display device for displaying a 3D image in conjunction with the 3D glasses,
A display unit displaying a 3D image;
A communication unit for communicating with an external device to receive attribute information of the 3D glasses;
And a controller configured to adjust an image quality of the displayed 3D image according to attribute information of the 3D glasses obtained from the external device. 10. The method of claim 9,
Optical information of the 3D glasses,
Transmittance of light transmitted through the 3D glasses, Contrast change rate of an image transmitted through the 3D glasses, Change rate of color hue of the image transmitted through the 3D glasses, Change rate of sharpness of the image transmitted through the 3D glasses And at least one of information regarding a type of the 3D glasses and manufacturer information of the 3D glasses. The method of claim 10,
The control unit,
And adjusting the image quality of the 3D image such that the brightness of the 3D image is increased according to the information on the transmittance of light transmitted through the 3D glasses obtained from the communication unit. The method of claim 10,
The control unit,
And adjust the image quality of the 3D image such that the contrast ratio of the 3D image is increased according to information about a contrast change rate of the image transmitted through the 3D glasses obtained from the communication unit. The method of claim 10,
The control unit,
According to the information on the color change rate of the image transmitted through the 3D glasses obtained from the communication unit, the image quality of the 3D image is adjusted by adjusting the color of the 3D image to the complementary color of the color changing when transmitted to the 3D glasses. 3D display device. 10. The method of claim 9,
The communication unit,
3D display device, characterized in that for receiving the attribute information of the 3D glasses from the 3D glasses. The method of claim 14,
The communication unit,
And when it is determined that the 3D glasses are worn by a viewer, attribute information of the 3D glasses is received from the 3D glasses. 10. The method of claim 9,
The communication unit,
And when it is determined that the attribute information of the 3D glasses is changed during the reproduction of the 3D image, the attribute information of the 3D glasses is received from the 3D glasses. In the 3D image quality adjustment method of the 3D display device for displaying a 3D image in conjunction with 3D glasses and an external playback device,
Acquiring attribute information of the 3D glasses;
Transmitting attribute information of the 3D glasses to the external player;
Receiving a 3D image of which image quality is adjusted according to attribute information of the 3D glasses; And
And displaying the 3D image of which the image quality is adjusted. The method of claim 17,
The transmitting step,
3D video quality adjustment method characterized in that the transmission using one of the HDMI DDC communication, HDMI CEC communication and Ethernet (Ethernet) communication. The method of claim 18,
3. The method of claim 3, wherein when the HDMI DDC communication is used, attribute information of the 3D glasses is stored and transmitted in extended display indentification data (EDID) information. A 3D display device for displaying a 3D image in conjunction with 3D glasses and an external playback device,
A display unit displaying a 3D image;
A first communication unit communicating with the 3D glasses;
A second communication unit communicating with the external playback device; and
A control unit controls to transmit the attribute information of the 3D glasses obtained from the first communication unit to an external player, and to receive and display a 3D image whose image quality is adjusted according to the attribute information of the 3D glasses from the external player. 3D display device comprising a. The method of claim 20,
The second communication unit,
3D display device, characterized in that for communicating with the external playback device using one of HDMI DDC communication, HDMI CEC communication and Ethernet (Ethernet) communication. The method of claim 21,
The second communication unit,
When the HDMI DDC communication is used, 3D display apparatus characterized in that the attribute information of the 3D glasses are stored in the EDID (extended display indentification data) information and transmitted. In the 3D glasses that can watch 3D images in conjunction with the 3D display device,
3D glasses communication unit for communicating with the 3D display device;
A storage unit storing attribute information of the 3D glasses;
And a control unit which controls to transmit the attribute information of the 3D glasses to the 3D display device. The method of claim 23, wherein
Attribute information of the 3D glasses,
Transmittance of light transmitted through the 3D glasses, Contrast change rate of an image transmitted through the 3D glasses, Change rate of color hue of the image transmitted through the 3D glasses, Change rate of sharpness of the image transmitted through the 3D glasses And at least one of information regarding a type of the 3D glasses and manufacturer information of the 3D glasses. The method of claim 23, wherein
The control unit,
And when it is determined that the 3D glasses are worn, controlling the attribute information of the 3D glasses to be transmitted to the display device. The method of claim 23, wherein
The control unit,
And when it is determined that the attribute information of the 3D glasses is changed during the reproduction of the 3D image, controlling the attribute information of the changed 3D glasses to be transmitted to the 3D display device. In the 3D image providing system comprising 3D glasses and 3D display device,
3D glasses for storing the attribute information of the 3D glasses, and transmits the attribute information of the 3D glasses to the 3D display device; And
And a 3D display device that receives the attribute information of the 3D glasses and automatically adjusts and displays the image quality of the 3D image according to the attribute information of the 3D glasses.

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