KR101908511B1 - Stereoscopic Image Display Device and Method for Driving the Same - Google Patents

Abstract

The present invention relates to a stereoscopic image display apparatus and a method of driving the stereoscopic image display apparatus capable of stably viewing a stereoscopic image even when a viewer or a moving viewer is away from an optimal viewing distance. A position detector for tracking a position and a motion of a viewer; and a view image applying sequence for outputting from the display panel in accordance with a position and a motion of the viewer, the display panel for outputting a view image, the switchable panel positioned on the display panel, The method comprising the steps of: detecting a position of a viewer out of an optimum viewing distance in the position detecting unit; transmitting the position of the viewer to a controller, And changing a view image application order to be applied to the panel The.

Description

Technical Field [0001] The present invention relates to a stereoscopic image display device and a method of driving the same,

The present invention relates to a stereoscopic image display apparatus, and more particularly, to a stereoscopic image display apparatus and a method of driving the stereoscopic image display apparatus which enable a viewer or a moving viewer who is located outside the optimal viewing distance to view a stable stereoscopic image without feeling crosstalk.

The services that will be realized for speeding up the information to be constructed based on the high-speed information communication network today are multi-view and listen multi-functions such as the current telephone, centered on digital terminals that process characters, It is expected to evolve into a media-type service, ultimately becoming a real-space, three-dimensional stereoscopic information communication service that transcends time and space, realizes, feels and feels and feels in three dimensions.

Generally, the stereoscopic image expressing 3-Dimension (3D) is made by the principle of stereoscopic vision through two eyes. Since the binocular interval, that is, the two eyes are about 65 mm apart, The difference is that the left and right eyes see slightly different images. Thus, the difference in the image due to the positional difference between the two eyes is referred to as binocular disparity.

The 3D stereoscopic image display apparatus allows the left eye to see only the left eye and the right eye to see only the right eye image by using the binocular parallax, so that the viewer can feel the stereoscopic effect by feeling the parallax. That is, when the left and right eyes see different two dimensional images and the two two dimensional images are transmitted to the brain through the retina, the brain fuses them exactly to reproduce the depth sense and real feeling of the original three dimensional image. This capability is commonly referred to as stereography, and an apparatus using the same as a display device is referred to as a stereoscopic image display device.

On the other hand, the stereoscopic image display apparatus can be classified into a spectacle type and a non-stereoscopic type depending on the presence or absence of glasses in a method of implementing a stereoscopic image. In the non-eyeglass system, there are a lenticular type and a switchable panel type according to the shape of a structure implementing a three-dimensional image.

In the lenticular method, a semi-cylindrical lenticular sheet is attached on a display panel to realize a stereoscopic image. In the switchable panel method, a switchable panel for converting a two-dimensional image into a three-dimensional image on a display panel for emitting a two-dimensional image is implemented to realize a stereoscopic image, and a stereoscopic image is implemented using a switchable barrier method of Parallax Barrier (Switchable Barrier Type) and Lens (Switchable Liquid Crystal Lens Type).

FIG. 1 is a view showing the principle of a stereoscopic image display apparatus of a general parallax barrier system.

1, a general parallax barrier type stereoscopic image display apparatus includes a light shielding portion 21 in front of a display panel 40 having right eye image information R and left eye image information L corresponding to right and left eyes of a viewer, And a parallax barrier (20) in which slits (22) are arranged in an intersecting manner.

Eye image information R is input to the right eye of the viewer through the slit 22 and the left eye image information L is input to the left eye through the slit 22 so that the viewer feels the binocular parallax, You can watch.

However, the viewer can vary the left / right or viewing distance according to need. However, a general parallax stereoscopic image display device has a problem that a viewer can not see a normal stereoscopic image if the viewer's left and right eye positions deviate from the area where the right eye image information and the left eye image information are formed.

The conventional parallax barrier type stereoscopic image display device has the following problems.

In a typical parallax barrier type stereoscopic image display apparatus, an area where the left eye and right eye image information are outputted from the stereoscopic image display apparatus is determined, and it is difficult for a viewer to see a normal stereoscopic image when the stereoscopic image is deviated from a predetermined area or moved.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a stereoscopic image display apparatus and a method of driving the stereoscopic image display apparatus capable of viewing stable stereoscopic images by viewers or moving viewers located outside the optimal viewing distance. have.

According to another aspect of the present invention, there is provided a stereoscopic image display apparatus including a display panel for emitting n (n is a natural number of 2 or more) view image, and a display panel located on the display panel, And a control unit for changing the order of applying a view image to be emitted from the display panel in accordance with the position and movement of the viewer tracked by the position detection unit and the position detection unit for tracking the position and movement of the viewer There are features.

Preferably, the control unit adjusts the order of applying the view image so as to view the sequential view on the left and right eyes of the viewer.

In addition, the controller may detect the degree of the viewer's distance from the optimum viewing distance, and change the order of application of the view image corresponding to the degree of separation.

Also, when the viewer moves from the optimum viewing distance, the controller may change the order of applying the view image corresponding to the moving position.

On the other hand, when the viewer is at the optimum viewing distance, the display panel successively emits first through n-th views from left to right or from right to left, and when the viewer departs left or right from the optimum viewing distance, May control the view application order so as to shift the display panel by one or more subpixels to emit the first through nth views.

Also, when the viewer is at the optimum viewing distance, the display panel successively emits first through n-th views from left to right or right to left, and when the viewer is close or far from the optimum viewing distance, , The view application order of the display panel may be controlled so as to view the sequential view without crosstalk in the left and right eyes of the viewer. In this case, the controller may repeat the same two views on the display panel to emit an image of a view number of n / 2.

In some cases, the control unit may shift the first through n-th view application orders by one or more subpixels to the display panel.

According to another aspect of the present invention, there is provided a method of driving a stereoscopic image display apparatus including a display panel for emitting n (n is a natural number of 2 or more) view image, a switchable panel positioned on the display panel, And a controller for controlling a view image application order to be outputted from the display panel according to a position and a motion of a viewer, the method comprising: Detecting a position of a viewer who is out of the range, and transmitting the position of the viewer to the control unit to change a view image application order to be applied to the display panel according to a viewer position .

In this case, the step of changing the view image application order adjusts the order of applying the view image so as to view the sequential view on the left and right eyes of the viewer.

In the step of detecting the position of the viewer out of the optimal viewing distance in the position detecting section, when the viewer is at the optimum viewing distance, the first to n-th views are successively outputted from the left to right or right to left in the display panel The view image application order of the control unit is adjusted.

In the step of changing the view image application order when the viewer is out of the optimum viewing distance to the left or right in the step of detecting the position of the viewer out of the optimum viewing distance in the position detector, The display panel may be shifted by one or more subpixels to emit the first through nth views.

In the step of changing the view image application order when the viewer approaches or departs from the optimum viewing distance in the step of detecting the position of the viewer out of the optimum viewing distance in the position detection unit, The view application order of the display panel is controlled so that the sequential view on the left and right eyes is viewed without crosstalk.

In this case, when the viewer approaches or departs from the optimum viewing distance, the controller may repeat the same two views on the display panel to emit an image of the number of views of n / 2.

Alternatively, when the viewer approaches or departs from the optimum viewing distance, the control unit may shift the first through nth view application orders by one or more subpixels to the display panel.

The stereoscopic image display apparatus and the driving method thereof according to the present invention have the following effects.

It is possible to prevent a 3D crosstalk felt due to a mixture of views in each eye of the viewer by causing the viewer to follow the viewer's position on the display panel while the viewer is out of the optimal viewing distance or on the move. Therefore, stable 3D viewing is possible. That is, even if the viewer is in the horizontal direction or the position deviated from the optimum viewing distance from the display panel, the same m-th (m is an integer) view is displayed in the left eye in the entire area of the display panel, The stereoscopic image can be viewed without crosstalk.

1 is a view showing the principle of a stereoscopic image display apparatus of a general parallax barrier system
FIG. 2 is a diagram showing the number of views displayed in the visual field in a stereoscopic image display apparatus in which a view map is set according to an optimum viewing distance. FIG.
FIG. 3 is a view showing 3D crosstalk which is shown at a position outside the optimum viewing distance when FIG. 2 is applied; FIG.
4 is a schematic view showing a stereoscopic image display apparatus according to the present invention.
Figure 5 is a cross-sectional view of the switchable panel of Figure 4;
6A and 6B are diagrams showing a view map of a view map and a corresponding display panel when the viewer moves in the lateral direction at an optimum viewing distance according to the first embodiment of the present invention
7A and 7B are views showing a view map of a viewer A position and a view design of a display panel corresponding thereto according to a second embodiment of the present invention
8A and 8B are views showing a view map at a viewer B position and a view design of a display panel corresponding thereto according to a second embodiment of the present invention
9 is a view showing a view map at a viewer A position and a view design of a display panel corresponding thereto according to a third embodiment of the present invention
10 is a view showing a view map at a viewer B position and a view design of a display panel corresponding thereto according to a third embodiment of the present invention

Hereinafter, a stereoscopic image display apparatus and a driving method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a diagram illustrating the number of views in a view area in a stereoscopic image display device in which a view map is set according to an optimum viewing distance. FIG. Fig.

The stereoscopic image display apparatus shown in FIG. 2 includes a display panel 80 for sequentially outputting four views, and a slit (not shown) on the display panel 80 to display a view image at different angles And a parallax barrier 90 for transmitting the parallax barrier 90.

The viewer is positioned so as to face the front of the parallax barrier 90 away from the parallax barrier 90. Generally, a view map of the display panel 80 is designed so that four sequential views are displayed in the optimum viewing distance (OVD), which is fixed. In this case, the viewer is located at the optimum viewing distance, and when viewed from various angles, a normal stereoscopic image can be recognized when both eyes are positioned in the overlapping areas of the same views. That is, an area in which the same view overlaps the center, left and right corresponds to the normal view area.

However, with respect to such a stereoscopic image display apparatus, if the viewer is out of the optimum viewing distance, as shown in Fig. 3, the viewer feels mixed presence between adjacent views in a part of the screen or the entire screen.

The stereoscopic image can not be stably displayed at the portion where the adjacent views overlap, and the viewer feels the fatigue of the eyes. The overlapping of these views is referred to as a 3D crosstalk phenomenon. As shown in FIG. 2, when the nearest or farther from the optimum viewing distance (movement in the Z axis), different view images are formed in the same area (X-axis movement) from the normal view area of the optimum viewing distance, and the eyes of the viewer are located in an area between adjacent views.

In view of realizing a multi view of substantially three or more eyes, a viewing area capable of viewing a stereoscopic image forms a viewing diamond similar to a rhombus with a short front side (parallax barriers) and a long rear side. That is, when the viewer is located between the front end of the viewing zone and the back end of the viewing zone based on the optimum viewing distance, the viewer can view the stereoscopic image. However, when the viewer is outside the optimum viewing distance, images corresponding to the viewer's eyes may be mixed with different views, and stable 3D viewing may not be possible even if the viewer is located in the viewing diamond.

Meanwhile, E, which is not described in the drawing, is the distance between the left eye and the right eye, that is, the binocular interval, and the average value of adults is about 65 mm.

The stereoscopic image display device of the present invention considers the apparatus and a driving method thereof so that a stable stereoscopic image can be viewed even when the viewer is out of the optimum viewing distance or even when the viewer is moving.

FIG. 4 is a schematic view showing a stereoscopic image display apparatus according to the present invention, and FIG. 5 is a sectional view showing the switchable panel of FIG.

4, the stereoscopic image display apparatus of the present invention includes a display panel 120 for emitting n (n is a natural number of 2 or more) view images, and a functioning switchable panel 140 A controller 200 for changing a view image application order to be output from the display panel according to the position and movement of a viewer tracked by the position detector 150, a position detector 150 for tracking the position and motion of a viewer, ).

The view image output from the display panel 120 is first to n-th view, and the first to n-th view images are sequentially output from the left to right or right to left when the viewer is positioned at the optimum viewing distance.

The control unit 200 includes a viewer position and motion information processing unit 210 for receiving and processing the viewer position and motion information detected by the position detection unit 150 and a controller 210 for controlling on / off of the switchable panel 140, A switchable panel control unit 220 for controlling driving voltage application and a view map control unit 220 for controlling the order of view images to be applied to the display panel 120 according to the viewer position and movement.

The position detector 150 is mounted on a part of the outer surface of the stereoscopic image display device in the form of a camera or the like to track the motion of the viewer. For example, the tracking method detects the final position of a viewer by using eye tracking to track the viewer's pupil movement or head tracking to recognize the movement of the head.

If the motion of the pupil is detected, when the viewer moves the position, the camera detects the center position of the left and right pupils of the viewer and recognizes that the center position changes. In addition, in the case of sensing the movement of the face, when the viewer rotates or moves the head, the camera detects the movement of the viewer based on the difference between the face and the background color, and detects the final position of the viewer.

The switchable panel 140 optically separates and emits an n-view image output from the display panel 120 so that a viewer viewing the n-view image can view different views on the left and right eyes. Examples of the switchable panel 140 include a transparent panel or a liquid crystal electric field lens or a switchable barrier type that performs a light separation function depending on whether a voltage is applied or not. The liquid crystal electric field lens and the barrier method described above are merely examples, and an optical element capable of performing a 2D / 3D switching function with or without voltage application may also be used. In some cases, in the case of implementing only 3D (stereoscopic image) or an apparatus having a separate 2D / 3D mode switching means, it is also possible to use a passive lenticular lens or a 3D filter instead of the switchable panel described above There will be.

The switchable panel 140 functions as a transparent panel when off, so that the two-dimensional image output from the display panel 120 passes through and is transmitted to the viewer.

For example, when the switchable panel 140 is in the barrier mode, when the switchable panel 140 is on, it functions as a barrier, And exits.

5, the switchable panel 140 includes first and second substrates 1110 and 1120 disposed opposite to each other and a first substrate 1110 and a second substrate 1110 on the first substrate 1110, A plurality of first electrodes 1111 and 1112 spaced apart from each other and a second electrode 1121 formed on the entire surface of the second substrate 1120 and a plurality of first electrodes 1111 and 1112, And a liquid crystal layer 1130 filled between the first substrate and the second substrate.

The switchable panel 140 may further include first and second alignment layers 1115 and 1122 on the uppermost layers of the first and second substrates 1110 and 1120 for initial liquid crystal alignment control .

A reference numeral 1113, which is not described, is an interlayer insulating film interposed between the first electrodes 1111 and 1112 formed on different layers. In some cases, the first electrodes may be formed on the same layer, and the interlayer insulating film 1113 may be omitted.

The switchable panel controller 220 in the controller 200 for controlling the operation of the switchable panel 140 is connected to the voltage source to control whether the switchable panel 140 is driven. The second electrode may be maintained in a ground state at all times, or may be supplied with the same voltage as the first voltage or the second voltage from a voltage source.

The switchable panel 140 may divide the transmissive area and the light shielding area into voltages applied to the first electrodes 1111 and 1112. In this case, a portion where the vertical electric field is formed between the first electrode 1111, 1112 and the second electrode 1122 and a portion where the vertical electric field is not formed can be divided to distinguish the transmissive region from the light shielding region. In the stereoscopic image display, the transmissive area and the shielding area are alternately arranged in the switchable panel 140, and one transmissive area and one shielding area located adjacent to each other are grouped into a switchable area. Here, a slit of the parallax barrier in the transmission region serves as a barrier to the light shielding region. In this case, one switchable area may correspond to the first to n-th views of one set of display panels 120.

Meanwhile, the control unit 200 controls the view image application order so that the viewer, who is in the optimal viewing distance, can view the sequentially viewed images on the left and right eyes of the viewer, do. In this case, the position or motion of the viewer receives the information through the position detector 150 and switches the view in the view map controller 220 so as to correspond to the information, so that the order of application of the view outputted from the display panel 120 and / Or adjust the view position.

For example, when the viewer is fixed, the controller 200 detects the degree of the viewer's distance from the optimum viewing distance through the position detector 150, Or to change the applied position.

Alternatively, when the viewer moves, the controller 200 may change the view image application order and / or the application position corresponding to the movement position when the viewer moves from the optimum viewing distance.

Hereinafter, a method of resetting the view map according to the viewer position will be described in detail.

6A and 6B are diagrams showing a view map of a view map and a corresponding display panel when the viewer moves in the horizontal direction at an optimum viewing distance according to the first embodiment of the present invention.

As shown in FIGS. 6A and 6B, the view map setting according to the first embodiment of the present invention consists of a shift of a view applied to the display panel following the viewer's movement.

That is, as shown in FIG. 6A, when the viewer is at the optimum viewing distance OVD, the display panel sequentially emits the first to nth views (four views in the drawing) from left to right or from right to left.

As shown in FIG. 6B, in the stereoscopic image display apparatus having the display panel having such a view map, when the viewer moves left or right from the optimum viewing distance, the control unit shifts the display panel by one or more subpixels The first through n-th views are applied so that a sequential view is viewed without cross talk in each of the two eyes. Here, the degree of shift corresponds to the degree to which the viewer exits the first through n-th views from the optimum viewing distance on the display panel. In other words, the reason why the final sequential view viewing is possible is because, for example, when the fourth view and the first view correspond to the left eye and the right eye, the viewer feels too, This is to prevent this.

In the drawing, it is shown that the viewer moves in two directions from the OVD in the X-axis direction (horizontal direction), and the view map is set again according to the moved viewer position. However, the example of moving on the drawing is only an example, and the viewer can move to either the left or the right side, and the view map can be viewed accordingly.

The shift of the view is performed in the display panel, and can be performed only by changing the order of the view without changing the driving of the switchable panel. Since the number of views supplied from the display panel in the control unit can be made without changing the view image itself, The 3D stereoscopic image can be viewed in accordance with the position and motion of the viewer who deviates from the optimum viewing distance by simple change of the driving method without changing the configuration.

On the other hand, the view application order applied to the display panel may be in reverse order as compared with the view order in the viewing distance. This is because the switchable panel 140 that serves as a barrier between the display panel 120 and the viewer and outputs images in multiple angles is provided.

The illustrated example is a case of 4 view, and the present invention is not limited to this.

Hereinafter, the change of the view map when there is the Z axis movement (movement of the distance from the switchable panel) from the viewer optimum viewing distance will be described.

FIGS. 7A and 8B are diagrams illustrating a view map at a viewer A position and a B position, and a view design of a display panel corresponding thereto, according to a second embodiment of the present invention.

As shown in Figs. 7A and 8A, when the viewer is at the optimum viewing distance, the display panel successively emits first through n-th views sequentially from left to right or from right to left.

7A and 7B, when the viewer is away from the optimal viewing distance OVDD and is located at the A position, a view map corresponding to the optimum viewing distance may have mixed views of different views on each eye of the viewer Therefore, the control unit controls the view application order of the display panel so as to view the sequential view without crosstalk in the left and right eyes of the viewer. That is, m (m is a natural number smaller than n) view and m + 1 view are displayed on the viewer, the left eye, and the right eye, respectively. In this case, the order of the view images to be output to the display panel 120 is changed so that the same m-th image is displayed on the left eye and the (m + 1) -th view is displayed on the right eye regardless of whether the viewer looks at the front or left or right.

In FIG. 7B, when three subpixels of the display panel 120 represent one view, a view map is set by shifting to the left or right by one or two subpixels. In some cases, the direction of the shift may be left or right. In addition, the number of shifted pixels may vary depending on the viewer position. And, the view change may be made to be sequentially applied to the subpixels, and in some cases, as shown, may be applied randomly. In FIG. 7B, the subpixels located on the left, the front, and the right side are different from each other in shift degree or the order of view application is different.

In either case, the view map can be set so that the viewer's binocular does not feel the coexistence of the views.

In this case, there may be a mixture of different views in the region not corresponding to both eyes, but since the image is not substantially coming into the binocular vision, there is no problem in viewing the stereoscopic image of the viewer. In FIG. 7A, the second view and the third view enter the left eye and the right eye, respectively. This indicates that both the front view of the switchable panel 140 and the display panel 120, It can be seen that the second view and the third view correspond to the left eye and the right eye without mixing other views.

The view number shown is a view that appears immediately after passing through the switchable panel, and the view number applied to the actual display panel may be in the reverse order.

8A and 8B, when the viewer approaches from the optimum viewing distance, the first to n-th views are applied with different shift directions for each display panel region. In addition, the number of shifted pixels may vary depending on the viewer distance approaching from the optimal viewing distance. And, the view change may be made to be sequentially applied to the subpixels, and in some cases, as shown, may be applied randomly. That is, the first view to the n-th view may be sequentially applied, or the same view may be arranged adjacent to each other. In FIG. 8, the subpixels located on the left, the front, and the right side are different from each other in shift degree or the order of view application is different.

In either case, the view map can be set so that the viewer's binocular does not feel the coexistence of the views.

Hereinafter, an example will be described in which a view map is set by another method when the viewer moves on the Z axis to prevent 3D crosstalk.

FIG. 9 is a diagram showing a view map of a view map at a viewer A position and a view design of a corresponding display panel according to a third embodiment of the present invention. And a view design of a display panel corresponding to the view map.

In the third embodiment according to Figs. 9A and 10B, when the viewer is at the A position or the B position out of the optimum viewing distance, the controller repeatedly repeats the same two views on the display panel, Images are emitted so that the same view is substantially associated with the view area corresponding to each eye, thereby preventing crosstalk caused by the coexistence of different views. That is, in the illustrated example, the second view corresponds to the left view and the third view corresponds to the right view, and the second view and the third view are emitted from the display panel to correspond to the second view. Since images can be reversed when passing through the switchable panel 140 on the display panel 120, the views applied to the display panel are set in the reverse order of the view after the switchable panel 140 has passed.

However, even if the number of views is changed, when the viewer moves away from or closest to the optimum viewing distance, the viewer does not feel crosstalk to each eye and does not feel the crosstalk, The method of re -

Hereinafter, a method of driving a stereoscopic image display apparatus according to the present invention will be described with reference to FIG.

The method for driving the stereoscopic image display apparatus of the present invention uses the stereoscopic image display apparatus shown in FIG. 4, wherein the position detector 150 detects a position of a viewer who is out of the optimum viewing distance, To the control unit, and changing the view image application order to be applied to the display panel according to the viewer position.

In this case, the step of changing the view image application order adjusts the order of applying the view image so as to view the sequential view on the left and right eyes of the viewer.

In the step of detecting the position of the viewer out of the optimum viewing distance, the position detector 150 detects the positions of the first to n-th views from left to right or right to left in the display panel when the viewer is at the optimum viewing distance And adjusts the view image application order of the control unit so as to sequentially output the image.

In the step of changing the view image application order when the viewer is out of the optimum viewing distance to the left or right in the step of detecting the position of the viewer out of the optimum viewing distance in the position detector, The display panel may be shifted by one or more subpixels to emit the first through nth views.

In the step of changing the view image application order when the viewer approaches or departs from the optimum viewing distance in the step of detecting the position of the viewer out of the optimum viewing distance in the position detection unit, The view application order of the display panel is controlled so that the sequential view on the left and right eyes is viewed without crosstalk.

In some cases, as in the third embodiment, when the viewer approaches or departs from the optimum viewing distance, the control unit may repeat the same two views on the display panel to emit a video of the number of views of n / 2 have.

In addition, when the viewer approaches or departs from the optimum viewing distance, the control unit may shift the first through nth view application orders by one or more subpixels to the display panel.

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, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Will be apparent to those of ordinary skill in the art.

120: display panel 140: switchable panel
150: position detecting section 200:
210: viewer position and motion information processor
220: Switchable panel control unit
230: view map control unit

Claims (15)

a display panel for emitting n view images (n is a natural number of 2 or more) view images;
A switchable panel located on the display panel and optically separating and outputting an n-view image coming from the display panel;
A position detection unit for tracking the position and movement of the viewer; And
The viewer detecting unit detects the degree of the viewer's distance from the optimum viewing distance in accordance with the position and movement of the viewer tracked by the position detecting unit and rearranges the order of applying the view image to be emitted from the display panel corresponding to the degree of separation, And a controller for allowing the viewer to view a sequential view on the left and right eyes of the viewer.
delete delete The method according to claim 1,
Wherein the control unit changes the order of applying the view image so that the viewer can see the sequential view on the left and right eyes of the viewer corresponding to each movement position while the viewer moves away from the optimum viewing distance.
delete The method according to claim 1,
When the viewer is at the optimum viewing distance, the display panel successively emits first through n-th views from left to right or right to left,
When the viewer is close or far from the optimum viewing distance,
Wherein the controller controls the display panel to shift the first through n-th viewing application orders by one or more subpixels and to visually recognize a sequential view without crosstalk on the left and right eyes of the viewer. Device. The method according to claim 1,
When the viewer is at the optimum viewing distance, the display panel successively emits first through n-th views from left to right or right to left,
When the viewer is close or far from the optimum viewing distance,
Wherein the controller repeats two identical views on the display panel to emit an image of a view number of n / 2.
delete (n is a natural number of 2 or more) view image, a switchable panel located on the display panel, a position detection unit for tracking the position and movement of the viewer, And a control unit for controlling the order of applying the view image to the display unit, the method comprising:
Detecting, at the position detection unit, a position of a viewer out of the optimal viewing distance;
The viewer's position is transmitted to the control unit so that the view image application order to be applied to the display panel corresponding to the distance from the optimum viewing distance is rearranged according to the viewer position so that a sequential view is displayed on the left and right eyes of the viewer And displaying the stereoscopic image on the stereoscopic image display device.
delete 10. The method of claim 9,
In the step of detecting the position of a viewer who is out of the optimum viewing distance in the position detecting section, when the viewer is at the optimum viewing distance,
Wherein the control unit adjusts the view image application order so that the first through n-th views are successively outputted from left to right or right to left in the display panel. delete 10. The method of claim 9,
In the step of detecting a position of a viewer who is out of the optimum viewing distance, the position detecting unit may detect a position of a viewer who is away from the optimal viewing distance,
Wherein the control unit controls the view application order of the display panel so as to follow each movement of the viewer and to visually recognize the sequential view without crosstalk in the left and right eyes in the step of changing the view image application order A method of driving a stereoscopic image display apparatus. 10. The method of claim 9,
Wherein when the viewer approaches or departs from the optimum viewing distance, the control unit repeats two identical views on the display panel and emits an image of a number of views of n / 2. 14. The method of claim 13,
Wherein when the viewer approaches or moves away from the optimum viewing distance, the controller shifts the first through n-th viewing application orders by one or more subpixels to the display panel.

Images