KR20060093602A - Liquid crystal display device for having a 3-dimensional camera - Google Patents

Abstract

A liquid crystal display device having a 3D camera is disclosed. The liquid crystal display device includes a 3D camera to develop a 3D stereoscopic image, and the 3D stereoscopic image is displayed on the liquid crystal display itself, thereby increasing the merchandise.

3D camera, right eye video signal, left eye video signal

Description

Liquid crystal display device having a 3D camera {{Liquid Crystal Display Device for having a 3-dimensional camera}

1 is a block diagram schematically illustrating a liquid crystal display according to the related art.

2 is a block diagram schematically illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

3 is a flowchart illustrating a process of displaying a 3D stereoscopic image in a liquid crystal display according to an exemplary embodiment of the present invention.

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device having a 3D camera.

Recently, liquid crystal display devices are also required to be lighter and thinner in accordance with lighter and thinner personal computers and TVs, and according to such demands, liquid crystal displays (LCD) instead of cathode ray tubes (CRT) are required. Flat panel displays are constantly being developed.

A liquid crystal display device applies an electric field to a liquid crystal material having an anisotropic dielectric constant injected between two substrates, and adjusts the intensity of the electric field to adjust the amount of light transmitted from an external light source (backlight) to the substrate. It is a display device which obtains a desired image signal.

Such a liquid crystal display device is typical among portable flat panel displays, and among them, a TFT-LCD using a thin film transistor (TFT) as a switching element is mainly used.

In general, 3D displays supporting 3D stereoscopic images are continuously developed to view display images more realistically. In a broad sense, a stereoscopic image display displaying a three-dimensional image, which is a concept including a stereoscopic image and a three-dimensional image, may be classified according to a stereoscopic display method, a view point, an observation condition, and whether the viewer wears glasses. . An observer stereoscopically recognizes an image provided on a display by binocular parallax, and a binocular method is mainly used.

Here, the binocular method is a way of feeling the sense of space due to the brain action when the image is input to the viewer's eyes from different angles.

1 is a block diagram schematically illustrating a liquid crystal display according to the related art.

Referring to FIG. 1, a conventional liquid crystal display device includes an input unit, an output unit, and a liquid crystal system unit.

The input unit includes an on / off input unit 100, a handset unit 110, and a camera 120, and the output unit includes a panel unit 170 and a handset unit 180. In addition, the terminal system unit includes a processor 130, a memory unit 140, a program unit 150, and a backlight driver 160.

First, the on / off input unit 100 of the input unit transmits a first input signal generated by inputting a telephone number or a letter using a switch button to the terminal system unit.

The handset 110 of the handset transmits a second input signal generated by recording a voice message or a voice of a user to the terminal system unit.

The camera 120 transmits a third input signal generated by recording a video image and a video to the terminal system unit. The third input signal is a screen on which a 2D planar image is captured, and is displayed with content support.

Next, the processor 130 of the terminal system unit is an apparatus for controlling operations of the memory unit 140, the program unit 150, and the backlight driver 160. The processor 130 generates a predetermined control signal and outputs the control signal to each circuit unit. To control timing or flow control.

The memory unit 140 records and stores a first digital input signal, a second digital input signal, or a third digital input signal converted from a first input signal, a second input signal, or a third input signal transmitted from the input unit. do. In particular, due to the development of mobile communication, the memory unit 140 has a trend of introducing highly integrated ROM or RAM, and technology improvement is rapidly progressing. That is, the memory unit 140 receives and stores the first input signal, the second input signal, or the third input signal transmitted from the input unit, and then converts the converted first digital input signal and second digital input. The signal or the third digital input signal is transmitted to the program unit 150.

The program unit 150 processes the first digital input signal, the second digital input signal, or the third digital input signal received from the input unit according to the already implanted program logic to generate the first digital logic signal and the first digital input signal. 2 digital logic signals or third digital logic signals are converted and generated, and then transferred to the output unit.

The backlight driver 160 receives a control signal generated from the processor 130 of the terminal system unit, generates a driving signal, and transmits the generated driving signal to the panel unit 170.

Next, the panel unit 170 of the output unit is a device which shows a display screen to a person skilled in the art as a two-dimensional planar image of the first digital logic signal or the third digital logic signal transmitted from the terminal system unit.

In detail, the panel unit 170 includes a liquid crystal display panel, a data driver, a scan driver, and a backlight unit.

First, the liquid crystal display panel includes a liquid crystal that is a display element. Since the liquid crystal is a passive display device that does not emit light by itself, a liquid crystal display device has a backlight unit behind the liquid crystal. That is, the liquid crystal display panel receives the light source transmitted by the backlight unit and emits light.

The liquid crystal display panel may further include a plurality of pixels arranged in rows and columns, a plurality of scan lines for selecting the plurality of pixels, and an insulated and intersecting portion of the plurality of scan lines. A plurality of data lines are formed to transfer the grayscale data voltage corresponding to the logic signal or the third digital logic signal.

Each pixel includes a thin film transistor having a gate electrode and a source electrode connected to a scan line and a data line, and a pixel capacitor and a storage capacitor connected to a drain electrode of the thin film transistor.

The data driver transfers the grayscale data voltage so that the liquid crystal of the liquid crystal display panel is smoothly displayed.

The scan driver generates a scan signal to apply the grayscale data voltage to the selected pixel. That is, the scan signal controls the thin film transistor on / off operation of the liquid crystal display panel to control the application of the grayscale data voltage to the liquid crystal of the liquid crystal display panel.

Next, since the backlight unit is a display element but no self-luminous source, detailed devices for uniformly illuminating the LCD are mounted on the rear surface of the liquid crystal display panel.

That is, the detailed devices of the backlight unit include a lamp, a lamp housing, a light guide plate, a reflective sheet, a diffusion sheet, a prism sheet, a protective sheet, and a mold frame, and the detailed devices provide a light source of the liquid crystal display panel.

Next, the handset 180 of the handset receives the second input signal transmitted from the other party's liquid crystal display through the liquid crystal system and is transmitted to the user to listen to the output unit.

Problems related to the conventional liquid crystal display device related to the present invention and solved by the present invention are as follows.

The liquid crystal display device is difficult to develop a 3D stereoscopic image because a 3D camera is not mounted, and there is a problem in that a 3D stereoscopic image cannot be displayed because a content supporting a 3D stereoscopic image is not provided.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device in which a 3D stereoscopic image is displayed by mounting a 3D camera.

The present invention for achieving the above object, the right eye image camera for generating a right eye image signal; A left eye image camera for generating a left eye image signal; A liquid crystal system unit which receives the right eye image signal and the left eye image signal and processes the signal to generate 3D stereoscopic image data; And a liquid crystal panel unit for receiving the 3D stereoscopic image data and displaying the 3D stereoscopic image data.

Hereinafter, described in detail with reference to the accompanying drawings of the present invention.

2 is a block diagram schematically illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the liquid crystal display device includes a camera 210, a liquid crystal system unit 200, and a liquid crystal panel unit 260.

The camera 210 is a 3D camera for capturing 3D stereoscopic images through a stereoscopic camera, and mainly adopts a stereoscopic display among camera techniques used for capturing the 3D stereoscopic images. .

The binocular method is an image camera technique that considers three-dimensional perception to make people feel a sense of space unlike a monocular display that considers only a unidirectional planar image.

In particular, the binocular method should be able to obtain an image as seen by a person in consideration of stereoscopic disparity according to the distance of an object, and requires sophisticated signal processing technology as well as sophisticated control and mechanical driving technology.

In addition, the stereoscopic camera is provided with two cameras to be symmetrically symmetrical, and the two cameras should naturally interlock with each other.

In other words, the stereoscopic camera should take a 3D stereoscopic image in consideration of a distance relationship with an object, a recognition relationship with the object, a stereoscopic relationship with the object, and a visual distortion phenomenon with the object.

Therefore, the camera 210 captures an image and a video to generate a right eye image signal and a left eye image signal. The right eye image signal and the left eye image signal are image data photographed using the stereoscopic camera, and the right eye image signal and the left eye image signal are displayed through the liquid crystal panel unit 260. 220).

 However, when a 2D planar image is required, the camera 210 generates only one of the right eye image and the left eye image by operating only one of two cameras.

Next, the liquid crystal system unit 200 includes a memory unit 220, an image signal processor 230, a mode selector 240, and an image graphics card 250, and the liquid crystal panel unit 260 is a liquid crystal display. The panel 270, the data driver 280, the scan driver 290, and the backlight unit 300 are provided.

In detail, the image signal processor 230 generates a predetermined control signal to control the mode selector 240, the memory unit 220, and the image graphics card 250. That is, the control signal controls the conversion of the 2D mode and the 3D mode of the mode selector 240, and the flow control, permission control, and error of the right eye image signal and the left eye image signal received from the memory unit 220. Manage control.

In addition, the image signal processor 230 controls the right eye image signal and the left eye image signal transmitted from the memory unit 220 to be image-processed in the image graphic card 250.

Subsequently, the memory unit 220 records and stores the right eye image signal and the left eye image signal transmitted from the camera 210, and then, according to the control signal of the image signal processor 230, the image graphics card 250. To pass).

In addition, the ROM of the memory unit 220 includes content for displaying a 3D stereoscopic image. That is, the content is an important software-service engine that must be inserted in order to display a three-dimensional stereoscopic image in the liquid crystal display itself.

      Therefore, the content of the memory unit 220 serves to support the 3D stereoscopic image to be actively displayed on the panel unit 260.

The mode selector 240 receives a control signal generated from the image signal processor 230 and selects one of a two-dimensional mode for displaying the two-dimensional plane image and a three-dimensional mode for displaying the three-dimensional stereoscopic image. One is the circuit section for selection.

That is, in order to execute the processing for the 3D display, the mode selector 240 must be converted to the 3D mode. Of course, the mode selector 240 needs to be converted to the 2D mode in order to execute the processing for the 2D display.

The image graphics card 250 generates 3D stereoscopic image data by image processing the right eye image signal and the left eye image signal received from the memory unit 220 according to the control signal of the image signal processor 230. Accordingly, the 3D stereoscopic image data is transferred to the liquid crystal panel unit 260.

Next, the liquid crystal panel unit 260 receives the 3D stereoscopic image data transmitted from the liquid crystal system unit and displays the 3D stereoscopic image. Therefore, the 3D stereoscopic image may be directly confirmed by our eyes through the liquid crystal panel 260.

The liquid crystal panel unit 260 includes a liquid crystal display panel 270, a data driver 280, a scan driver 290, and a backlight unit 300.

First, the liquid crystal display panel 270 includes a liquid crystal that is a display element. Since the liquid crystal is a passive display device that does not emit light by itself, the liquid crystal device has a backlight unit 300 on its rear surface. That is, the liquid crystal display panel 270 receives the light source transmitted by the backlight unit 300 and emits light.

In addition, the liquid crystal display panel 270 is insulated and crossed with a plurality of pixels arranged in rows and columns, a plurality of scan lines for selecting the plurality of pixels, and a plurality of scan lines. A plurality of data lines are formed for transferring grayscale data voltages corresponding to three-dimensional stereoscopic image data.

Each pixel includes a thin film transistor having a gate electrode and a source electrode connected to a scan line and a data line, and a pixel capacitor and a storage capacitor connected to a drain electrode of the thin film transistor.

Here, the pixel capacitor is a circuit element representing a liquid crystal, and the storage capacitor is a passive element which maintains the gradation data voltage applied to the pixel capacitor for a predetermined period.

The data driver 280 transmits the grayscale data voltage so that the liquid crystal of the liquid crystal display panel 270 is smoothly displayed.

The scan driver 290 generates a scan signal to apply the grayscale data voltage to the selected pixel. That is, the scan signal controls the thin film transistor on / off operation of the liquid crystal display panel 270 to control the application of the gray scale data voltage to the liquid crystal of the liquid crystal display panel 270.

Next, since the backlight unit 300 is a display element but does not have a light emitting source, detailed devices for uniformly illuminating the LCD are mounted on the rear surface of the liquid crystal display panel 270.

That is, the detailed devices of the backlight unit 300 are composed of a lamp, a lamp housing, a light guide plate, a reflective sheet, a diffusion sheet, a prism sheet, a protective sheet, and a mold frame, and the detailed devices are light sources of the liquid crystal display panel 270. To provide

Accordingly, the liquid crystal panel unit 260 receives the 3D stereoscopic image data transmitted from the liquid crystal system unit to display the 3D stereoscopic image through the liquid crystal display panel 270.

3 is a flowchart illustrating a process of displaying a 3D stereoscopic image in a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the liquid crystal display is largely formed of a 3D camera 210, a liquid crystal system unit 200, and a liquid crystal panel unit 260.

In addition, the liquid crystal system unit includes a memory unit 220, an image signal processor 230, a mode selector 240, and an image graphics card 250.

Specifically, the 3D camera 210 is equipped with a stereoscopic camera for capturing a three-dimensional stereoscopic image. That is, the stereoscopic camera has a right eye camera 211 and a left eye camera 212 to shoot a 3D stereoscopic image, and the right eye camera 212 develops an image corresponding to the right side. The left eye image camera 211 develops an image corresponding to the left side. In addition, the 3D camera 210 is positioned to be symmetrical to the liquid crystal panel unit 260 structurally. In other words, the left eye image camera 211 of the 3D camera 210 is structurally set at the upper left of the liquid crystal panel unit 260, and the right eye image camera 211 of the camera 210 is the liquid crystal panel unit. It is structurally set at the upper right of 260.

In addition, the 3D camera 210 is installed in the liquid crystal display by stealing a binocular method, which is a camera technique that makes a sense of space by changing the photographing angles of the right eye image camera 211 and the left eye image camera 212.

In order for the 3D stereoscopic image to be displayed through the liquid crystal panel unit 260, both the right eye image camera 211 and the left eye image camera 212 should be linked and operated. Accordingly, the right eye image camera 211 generates a right eye image signal, and the left eye image camera 212 generates a left eye image signal. Therefore, the right eye image signal and the left eye image signal are transmitted to the memory unit 220 of the liquid crystal system unit 200.

Next, the image signal processor 230 generates a predetermined control signal to control the memory unit 220, the image graphics card 230, and the mode selector 240. That is, the control signal is converted into a two-dimensional mode and a three-dimensional mode of the mode selector 240, and flow control, permission control, and error control of the right eye image signal and the left eye image signal received from the memory unit 220. Preside over

In addition, the control signal of the video signal processor 230 may be any one of an MPEG compression method, a JPEG compression method, an AVI compression method, and a MOV compression method. Compress video signals.

That is, the image signal processor 230 converts the right eye image signal and the left eye image signal into right eye digital data and left eye digital data through the data compression.

Subsequently, the memory unit 220 records and stores the right eye image signal and the left eye image signal transmitted from the camera 210, and then, according to the control signal of the image signal processor 230, the image graphics card 250. To pass).

In addition, the ROM of the memory unit 220 includes content for displaying a 3D stereoscopic image. That is, the content is an important software-service engine that must be inserted in order to display a three-dimensional stereoscopic image in the liquid crystal display itself.

Therefore, the content of the memory unit 220 serves to support the 3D stereoscopic image to be actively displayed on the liquid crystal panel unit 260.

Next, the mode selector 240 receives a control signal generated from the image signal processor 230 to display a two-dimensional mode for displaying the two-dimensional plane image and a three-dimensional mode for displaying the three-dimensional stereoscopic image. Either one is a circuit section to be selected.

That is, in order to execute the processing for the 3D display, the mode selector 240 must be converted to the 3D mode. Of course, the mode selector 240 needs to be converted to the 2D mode in order to execute the processing for the 2D display.

The image graphics card 250 executes stereo rendering, which is a method of synchronizing and synthesizing the right eye digital data and the left eye digital data received from the memory unit 220 by using a stereo rendering engine already installed. Accordingly, the image graphic card 250 generates 3D stereoscopic image data through the stereo rendering, and then transfers the 3D stereoscopic image data to the liquid crystal panel unit 260 according to the control signal.

Finally, the liquid crystal panel unit 260 displays three-dimensional stereoscopic image data received from the image graphics card 250 using an already inserted liquid crystal display panel to execute a three-dimensional stereoscopic image.

In this case, only one of the right eye image camera 211 or the left eye image camera 212 is selected to be displayed on the liquid crystal panel unit 260. In other words, when the right eye image camera 211 is operated, only the right eye image signal is generated, and when the left eye image camera 212 is operated, only the left eye image signal is generated.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

According to the present invention described above, the liquid crystal display device is equipped with a 3D camera to take a three-dimensional stereoscopic image, and the liquid crystal display device itself to display the three-dimensional stereoscopic image has the effect of increasing the marketability.

Claims (7)

A right eye camera for generating a right eye video signal; A left eye image camera for generating a left eye image signal; A liquid crystal system unit which receives the right eye image signal and the left eye image signal and processes the signal to generate 3D stereoscopic image data; And And a liquid crystal panel unit for receiving the 3D stereoscopic image data and displaying the 3D stereoscopic image data. The liquid crystal display of claim 1, wherein the right eye image camera and the left eye image camera are mounted on the outer upper end of the liquid crystal panel to be symmetrical to each other. The liquid crystal display of claim 2, wherein the right eye image camera and the left eye image camera use a binocular method, which is an imaging technique for displaying the 3D stereoscopic image by changing a photographing angle. The liquid crystal system of claim 1, wherein A memory unit for recording and storing the right eye image signal and the left eye image signal; An image signal processor for compressing the right eye image signal and the left eye image signal according to a control signal to generate right eye digital data and left eye digital data; And And a video graphic card for stereo-rendering the right eye digital data and the left eye digital data to generate the 3D stereoscopic image data. The method of claim 4, wherein the stereo rendering is a method of synchronizing and synthesizing the right eye digital data and the left eye digital data through a stereo rendering engine formed on the video graphics card to generate the 3D stereoscopic image data. LCD display device. 5. The liquid crystal display device according to claim 4, wherein the data compression is performed by one of an MPEG compression method, a JPEG compression method, an AVI compression method, and a MOV compression method. The liquid crystal system of claim 4, wherein And a mode selector configured to receive the control signal and convert the control signal into a 3D mode for displaying a 3D stereoscopic image or a 2D mode for displaying a 2D flat image.

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