KR20140066443A - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- KR20140066443A KR20140066443A KR1020120133681A KR20120133681A KR20140066443A KR 20140066443 A KR20140066443 A KR 20140066443A KR 1020120133681 A KR1020120133681 A KR 1020120133681A KR 20120133681 A KR20120133681 A KR 20120133681A KR 20140066443 A KR20140066443 A KR 20140066443A
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- South Korea
- Prior art keywords
- blocking
- eye image
- display
- blocking member
- portions
- Prior art date
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-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/327—Calibration thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
The present invention relates to a display device having a plurality of first display areas for displaying a left eye image, a plurality of second display areas for displaying right eye images, and a display having a boundary part disposed between the first display area and the second display area A barrier portion including a plurality of shielding portions for selectively shielding the left eye image and the right eye image, a plurality of transmission portions for transmitting the left eye image and the right eye image, and a barrier portion including the boundary portion and the blocking portion, And a display device,
According to the present invention, the shape of the blocking portion of the barrier portion can be changed so that the brightness of the image is prevented from suddenly changing even if the viewer moves the position, thereby improving the quality of the image.
Description
The present invention relates to a display device capable of viewing stereoscopic images without glasses.
Generally, a stereoscopic image display device is a device that enables a viewer to view a stereoscopic image by binocular parallax of a left eye and a right eye by providing different images to the left and right eyes of a viewer. Such stereoscopic image display apparatuses include a spectacle method and a non-spectacle method.
In the spectacle method, a polarizing direction of a left eye image and a right eye image are different from each other in a display device, and stereoscopic images are implemented by viewing such images using polarizing glasses. Alternatively, a stereoscopic image is implemented by separating and displaying the left eye image and the right eye image in a temporal manner in a display device, and viewing the image using liquid crystal shutter glasses.
In recent years, research on the non-eyeglass system has been actively carried out in addition to such glasses system. In the non-eyeglass system, there is a lenticular system for separating a left eye and a right eye image using a cylindrical lens array, and a barrier system for separating a left eye and a right eye image using a barrier.
1 is a plan view schematically showing a display device according to the prior art.
1, a display device according to the related art includes a display panel 1 for displaying a left eye image and a right eye image, a barrier for separating and transmitting left and right eye images displayed by the display panel 1 to viewers, (5).
The display panel 1 is divided into a plurality of
The plurality of blocking
2A and 2B are conceptual diagrams for explaining a problem of a display device according to the related art.
2A, when the viewer is positioned at the first position P1 to view the
Referring to FIGS. 2A and 2B, when the viewer is located at the first position P1 and when the viewer is located at the second position P2, the plurality of blocking
Therefore, the following problems arise in the display device according to the related art.
Since the
FIG. 3 is a graph illustrating luminance of an image viewed by a display device according to a related art in accordance with a change in position of a viewer. In FIG. 3, the X-axis represents the position of the viewer, and the Y-axis represents the luminance of the image.
Referring to FIG. 3, it can be seen that the brightness of the image is drastically lowered as the viewer moves from the first position P1 to the second position P2. In contrast, when the viewer moves from the second position P2 to the first position P1, the brightness of the image will be abruptly increased.
Thus, if the brightness of the image is rapidly increased and then rapidly decreased, the viewer perceives the image as if it is blinking. This phenomenon is called flicker phenomenon. When the flicker phenomenon occurs, there arises a problem that the quality of the image displayed by the display device is deteriorated. Furthermore, there arises a problem that a viewer can not view an image through the display device.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a display device capable of preventing a flicker phenomenon.
In order to solve the above-described problems, the present invention can include the following configuration.
A display device according to the present invention includes a plurality of first display areas for displaying a left eye image, a plurality of second display areas for displaying a right eye image, and a plurality of second display areas arranged between the first display area and the second display area A display panel having a boundary portion; A barrier unit including a plurality of blocking units for selectively blocking the left eye image and the right eye image, and a plurality of transmission units for transmitting the left eye image and the right eye image; And the boundary portion and the blocking portion may be formed to be oriented in different directions.
According to the present invention, there are the following effects.
The present invention can improve the quality of the image by preventing the abrupt change of the luminance of the image even if the viewer moves the position by changing the shape of the blocking portion of the barrier portion.
1 is a plan view schematically showing a display device according to a related art;
FIGS. 2A and 2B are conceptual diagrams for explaining problems of a display device according to the related art; FIG.
FIG. 3 is a graph showing brightness of an image viewed by a display device according to a related art, according to a change in a position of a viewer.
4 is a perspective view schematically showing a display device according to the present invention.
5A and 5B are conceptual diagrams for explaining a display panel and a barrier portion of a display device according to the present invention;
6 is a graph showing brightness of an image viewed by a display device according to the present invention in accordance with a change in a position of a viewer.
7 is a conceptual view schematically showing a display panel of a display device according to the present invention.
Hereinafter, preferred embodiments of the display device according to the present invention will be described in detail with reference to the accompanying drawings.
The
The
The
The
The
The blocking
The
The
On the contrary, the case where the blocking
When the brightness of the image increases sharply, the blocking
Hereinafter, the
4, 5A and 5B, the
The
Each of the plurality of
4, 5A and 5B, the
The
The distance between the plurality of blocking
The blocking
The blocking
2, the
In order for the control unit to move the blocking
The first substrate and the second substrate may be formed of a glass substrate or a plastic substrate made of a transparent material. The first substrate and the second substrate are bonded together facing each other with a liquid crystal layer interposed therebetween.
The liquid crystal layer is formed between the first substrate and the second substrate and may be composed of a twisted nematic (TN) or a super twisted nematic (STN) liquid crystal. The liquid crystal layer changes the molecular arrangement of the liquid crystal according to the voltage applied to the liquid crystal driving electrode to selectively form the blocking
The control unit selectively applies a voltage to the liquid crystal driving electrode so that the blocking
The control unit senses the position of the viewer and corrects the position of the blocking
5A, 5B, and 7, the blocking
The blocking
The
The
The
Here, M and K may have the same value.
7, in the
Since the
Referring to FIG. 8, the
However, the
Therefore, the blocking
Hereinafter, operations and effects of the
5A shows a case where the viewer is located at the first position Pl to view an image displayed by the
Referring to FIG. 5A, a
The barrier part (30) is disposed in front of the display panel (20). The barrier portion (30) includes the blocking portion (31) facing in a direction tilted with respect to a direction in which the boundary portion (23) faces. The blocking
The
5A shows a case where the viewer is located at the second position P2 and views an image displayed by the
Referring to FIG. 5B, the blocking
5A and 5B, it is confirmed that the size of the
Here, since the
FIG. 6 is a graph illustrating the brightness of an image viewed by the display device according to the present invention. In Fig. 6, the X-axis represents the position of the viewer and the Y-axis represents the luminance of the image.
Referring to FIG. 6, it can be seen that there is no large difference when the viewer compares the brightness when the viewer is located at the first position (P1) and the brightness when the viewer is located at the second position (P2). Particularly, there is no section in which the luminance is changed abruptly according to the change of the position of the viewer. As described above, when the luminance is abruptly changed, a flicker phenomenon occurs. However, according to the
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It will be clear to those who have knowledge.
10: display device 20: display panel
21: first display area 22: second display area
23: boundary portion 30: barrier portion
31: blocking portion 311: first blocking member
312: second blocking member 32: transmitting portion
Claims (10)
A barrier unit including a plurality of blocking units for selectively blocking the left eye image and the right eye image, and a plurality of transmission units for transmitting the left eye image and the right eye image; And
Wherein the boundary portion and the blocking portion are formed to be oriented in different directions.
Wherein the boundary portion is formed to be oriented in a direction parallel to any one side of the sides of the display panel,
And the blocking portion is formed to be oriented in a direction tilted with respect to a direction in which the boundary portion faces.
The blocking unit includes a first blocking member for selectively blocking the left eye image and the right eye image, and a second blocking member connected to the first blocking member;
Wherein the first blocking member and the second blocking member are connected to each other with an inclined angle of N degrees (N is larger than 0 and smaller than 180).
Wherein the first blocking member and the second blocking member are formed such that a portion where the subtended angle is formed is directed to a first side of the sides of the display panel.
Wherein the first blocking member is formed to be inclined at an angle of M degrees (M is greater than 0 and less than 90 degrees) with respect to the boundary.
And the second blocking member is formed so as to be tilted with a K degree (K is greater than 0 and less than 90 degrees) with respect to the boundary.
Wherein the shielding portion is formed in a zigzag shape between a first side parallel to the boundary portion and a second side opposite to the first side among the sides of the display panel.
Wherein the barrier portions are disposed such that the blocking portions and the transparent portions are alternated with each other.
Wherein the first display areas and the second display areas of the display panel are alternately arranged.
And a controller for moving the plurality of blocking portions and the plurality of transmitting portions according to a position of a viewer to correct positions of the plurality of blocking portions and the plurality of transmitting portions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120133681A KR101963206B1 (en) | 2012-11-23 | 2012-11-23 | Display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120133681A KR101963206B1 (en) | 2012-11-23 | 2012-11-23 | Display device |
Publications (2)
Publication Number | Publication Date |
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KR20140066443A true KR20140066443A (en) | 2014-06-02 |
KR101963206B1 KR101963206B1 (en) | 2019-03-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020120133681A KR101963206B1 (en) | 2012-11-23 | 2012-11-23 | Display device |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005176004A (en) * | 2003-12-12 | 2005-06-30 | Sanyo Electric Co Ltd | Three-dimensional image display device |
KR20070043148A (en) * | 2005-10-20 | 2007-04-25 | 삼성에스디아이 주식회사 | Barrier device and autostereoscopic display using the same |
-
2012
- 2012-11-23 KR KR1020120133681A patent/KR101963206B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005176004A (en) * | 2003-12-12 | 2005-06-30 | Sanyo Electric Co Ltd | Three-dimensional image display device |
KR20070043148A (en) * | 2005-10-20 | 2007-04-25 | 삼성에스디아이 주식회사 | Barrier device and autostereoscopic display using the same |
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KR101963206B1 (en) | 2019-03-28 |
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