JP5782144B2 - Liquid crystal parallax barrier, display device, and liquid crystal display device - Google Patents

Description

  The present invention relates to a liquid crystal parallax barrier, a display device, and a liquid crystal display device, and more specifically, a liquid crystal parallax barrier that forms a parallax barrier for performing three-dimensional display by controlling the orientation of liquid crystal molecules, The present invention relates to a display device using the liquid crystal parallax barrier and a liquid crystal display device.

  2. Description of the Related Art Conventionally, a parallax barrier method is known as one of three-dimensional image display methods that do not use glasses. The parallax barrier system is called a parallax barrier, and is vertically striped with a visual image from the right eye and a visual image from the left eye behind a plate with multiple vertical slits. This is a method of displaying a three-dimensional image by installing images that are cut and arranged alternately and observing the images through a parallax barrier.

  Patent Document 1 discloses a liquid crystal display capable of displaying both a two-dimensional image and a three-dimensional image by configuring the parallax barrier with an apparatus using liquid crystal (hereinafter referred to as “liquid crystal parallax barrier”). An apparatus is disclosed.

Japanese Patent Laid-Open No. 3-119889

  A display device that can display a two-dimensional image and a three-dimensional image with a single display device, such as the display device of Patent Document 1, is useful. However, even in such a display device, a three-dimensional image is displayed. Many users do not particularly desire a display device having a display function of a three-dimensional image because the two-dimensional image is displayed more frequently than an opportunity to display the image. However, in order to use a three-dimensional image on more occasions, a display device that can display such a two-dimensional image and a three-dimensional image on a single display device is used by more users. In order to increase the use of three-dimensional images, it is desired that such a display device be provided at a lower cost.

  The present invention has been made in view of the above circumstances, and an object thereof is to manufacture a liquid crystal parallax barrier at a lower cost.

  The liquid crystal parallax barrier of the present invention is a liquid crystal parallax barrier that forms a parallax barrier for performing three-dimensional display by controlling the orientation of liquid crystal molecules, and is a first substrate installed in parallel to each other And a second substrate, a liquid crystal sealed between the first substrate and the second substrate, and a plurality of electrodes disposed on the first substrate, and the second substrate An electrode is not formed on the substrate, and the plurality of electrodes include a first electrode and a second electrode, the first electrode is branched, and has a plurality of first branches having ends of the branches. The liquid crystal parallax barrier is characterized in that the liquid crystal is aligned to form a parallax barrier by an electric field generated by applying different voltages to the first electrode and the second electrode. .

  In the liquid crystal parallax barrier according to the aspect of the invention, the first electrode and the second electrode may be formed on the same plane, and each of the second electrodes may be branched to have a plurality of second ends having the branch ends. Two branch portions may be provided, and each of the first branch portions may be alternately arranged so as to fall between the two second branch portions.

  In the liquid crystal parallax barrier of the present invention, the first branch portions may be alternately arranged so as to enter between the two second branch portions adjacent to each other.

  In the liquid crystal parallax barrier of the present invention, the first branch portion and the second branch portion may be bent.

  In the liquid crystal parallax barrier of the present invention, the second electrode is formed on a different plane from the first electrode and has a rectangular plane, and the first branch portion is the rectangular plane. May extend across the rectangular plane in the direction in which one side extends.

  In the liquid crystal parallax barrier of the present invention, the liquid crystal parallax barrier further includes a third electrode having a plurality of third branches that branch and have ends of the branches, the first electrode, the second electrode, and the third electrode Are formed on different planes, the second electrode has a rectangular plane, and the first branch portion has a rectangular plane in a first direction in which a first side of the rectangular plane extends. And the third branch may extend across a rectangular plane in a second direction that intersects the first direction.

  In the liquid crystal parallax barrier of the present invention, a first potential is applied to the first electrode, and a second potential different from the first potential is applied to the second electrode. Forming a first parallax barrier, applying a third potential different from the second potential to the third electrode, and applying the second potential to the second electrode; A second parallax barrier may be formed, and the formation of the first parallax barrier and the formation of the second parallax barrier may be switchable.

  The liquid crystal parallax barrier of the present invention may further include a third electrode formed on the same plane as the first electrode, and a fourth electrode formed on the same plane as the second electrode, The first electrode and the third electrode are formed in a different planar shape from the second electrode and the fourth electrode, the second electrode is branched, has an end of the branch, and the first branch extends. A plurality of second branches extending in a direction different from the direction; the third electrode branches; has a branch end; and extends in a different direction parallel to the direction in which the first branch extends. A plurality of third branches, the fourth electrode branching, a plurality of fourth branches extending in different directions in parallel to the direction in which the second branch extends, and branch ends of the fourth electrode And the first branch is between the two third branches. And the second branch extends between two of the fourth branches, and has a branch end of one of the first electrode and the second electrode. The part may extend so as to enter between two branches having the ends of the branch of the other electrode.

  In the liquid crystal parallax barrier of the present invention, a first potential is applied to the first electrode, and a second potential different from the first potential is applied to the second electrode and the fourth electrode. Is applied to form a first parallax barrier, a third potential is applied to the second electrode, and the third potential is applied to the first electrode and the third electrode. A second parallax barrier may be formed by applying a different fourth potential, and the formation of the first parallax barrier and the formation of the second parallax barrier may be switchable.

  A display device of the present invention is a display device comprising: a liquid crystal parallax barrier of any of the liquid crystal parallax barriers described above; and a display unit having a display surface disposed in parallel with the liquid crystal parallax barrier. is there.

  The liquid crystal display device of the present invention includes a liquid crystal parallax barrier of any of the liquid crystal parallax barriers described above, a liquid crystal panel arranged in parallel with the liquid crystal parallax barrier, the liquid crystal panel, and the liquid crystal panel. And a backlight that irradiates light to the liquid crystal parallax barrier.

  The liquid crystal parallax barrier of the present invention is a liquid crystal parallax barrier that forms a parallax barrier for performing three-dimensional display by controlling the orientation of liquid crystal molecules, and is two glass substrates installed in parallel to each other And a liquid crystal sealed between the two glass substrates, and a plurality of electrodes for controlling the molecular orientation of the liquid crystal, the plurality of electrodes being one of the two glass substrates The liquid crystal parallax barrier is characterized in that a parallax barrier is formed by applying a voltage different from that of the other electrode to one of the plurality of electrodes. .

  In the liquid crystal parallax barrier of the present invention, the plurality of electrodes are a first electrode and a second electrode on the same plane, and each of the first electrode and the second electrode is branched, and the first electrode Of the one electrode and the second electrode, the branches having the branch ends of one electrode are alternately arranged so as to fall between the two branches having the branches of the other electrode. , And can be.

  In the liquid crystal parallax barrier of the present invention, the branch portion having the branch end may be bent.

  In the liquid crystal parallax barrier according to the present invention, the plurality of electrodes are a first electrode and a second electrode on different planes, the first electrode forms a rectangular plane, and the second electrode The electrode may be branched, and the plurality of branch portions having the branch ends may extend in parallel with one side of the rectangular plane so as to cross the rectangular plane.

  In the liquid crystal parallax barrier of the present invention, the plurality of electrodes are a first electrode, a second electrode, and a third electrode on different planes, and the first electrode forms a rectangular plane. The second electrode branches, and a plurality of branches having ends of the branches extend so as to cross the rectangular plane in parallel with one side of the rectangular plane, and the third electrode branches. The plurality of branch portions having the branch ends may extend perpendicularly to the plurality of branch portions of the second electrode so as to cross the rectangular plane.

  Further, in the liquid crystal parallax barrier of the present invention, the plurality of electrodes are different from the first electrode and the second electrode on the same plane, and the plane where the first electrode and the second electrode are present, A third electrode and a fourth electrode on the same plane, wherein the first electrode branches, a plurality of branches having ends of the branches extend in one direction, and the second electrode branches; The plurality of branch portions having the branch ends extend in different directions parallel to the one direction, and the branch portions having the branch ends of one of the first electrode and the second electrode are: The other electrode extends to enter between two branches having the branch ends, the third electrode branches, and the plurality of branches having the branch ends are in a direction different from the one direction. A plurality of branches extending, the fourth electrode branching and having ends of the branches The branch portion extending in a different direction in parallel with the direction different from the one direction and having the branch end of one of the third electrode and the fourth electrode is the end of the branch of the other electrode. It extends so that it may enter between two branches which have these.

  A display device according to the present invention is a display device including a liquid crystal parallax barrier of any of the liquid crystal parallax barriers described above, and a display unit having a display surface arranged in parallel with the liquid crystal parallax barrier.

  The liquid crystal display device of the present invention includes a liquid crystal parallax barrier of any one of the above liquid crystal parallax barriers, a liquid crystal panel arranged in parallel with the liquid crystal parallax barrier, the liquid crystal panel, and the liquid crystal parallax barrier. And a backlight that irradiates light to the liquid crystal display device.

1 is a diagram schematically illustrating a liquid crystal display device according to an embodiment of the present invention. It is a figure which shows the structure of the liquid crystal module of FIG. It is a figure which shows roughly the arrangement | positioning of the electrode of the electrode substrate of FIG. It is a figure which shows the cross section of the liquid crystal parallax barrier panel in the position of line | wire AA of the electrode substrate of FIG. It is a figure which shows the mode of the display area when a predetermined voltage is applied to the 1st electrode. It is a figure which shows roughly arrangement | positioning of the electrode of the electrode substrate which is a modification of 1st Embodiment. It is a figure which shows schematically the arrangement | positioning of the electrode of the electrode substrate of a liquid crystal parabax barrier in the liquid crystal display device which concerns on one Embodiment of this invention. It is a figure which shows the cross section of the liquid-crystal parallax barrier panel in the position of line BB of the electrode substrate of FIG. It is a figure which shows schematically the arrangement | positioning of the electrode of the electrode substrate of a liquid crystal parabax barrier in the liquid crystal display device which concerns on one Embodiment of this invention. It is a figure which shows the cross section of the liquid-crystal parallax barrier panel in the position of line CC of the electrode substrate of FIG. It is a figure which shows the structure of the liquid crystal module in the liquid crystal display device which concerns on one Embodiment of this invention. It is a figure which shows the structure of the liquid crystal module in the liquid crystal display device which concerns on one Embodiment of this invention. It is a figure which shows the plasma display apparatus which concerns on one Embodiment of this invention.

  Hereinafter, first to sixth embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

[First Embodiment]
FIG. 1 schematically shows a liquid crystal display device 100 according to an embodiment of the present invention. As shown in this figure, the liquid crystal display device 100 includes a liquid crystal module 130 fixed so as to be sandwiched between an upper frame 110 and a lower frame 120, a power supply device (not shown), and the like. The entire liquid crystal display device may be referred to as a liquid crystal module.

FIG. 2 shows the configuration of the liquid crystal module 130. The liquid crystal module 130 applies a voltage to a pixel electrode, which will be described later, to input a liquid crystal parallax barrier panel 200 that functions as a parallax barrier with slits, and a video signal to respond to an image of the video signal. A liquid crystal panel 131 that transmits the transmitted light, and a backlight 132 that irradiates the liquid crystal panel 131 and the liquid crystal parallax barrier panel 200 with light and displays an image on the liquid crystal display surface. The backlight 132 is, for example, a cold cathode tube (CFL).
) Or a light emitting diode (LED), an optical sheet made of a reflection sheet, a diffusion sheet, or the like, and a light guide plate. Here, the liquid crystal parallax barrier panel 200 includes an electrode substrate 210 having electrodes, a liquid crystal composition (not shown), and a sealing substrate 204 that seals the liquid crystal composition between the electrode substrate 210. ing. Although the entire liquid crystal display device may be referred to as a liquid crystal module, in this specification, the configuration illustrated in FIG. 2 described above is referred to as a liquid crystal module.

  FIG. 3 schematically shows the arrangement of the electrodes of the electrode substrate 210. As shown in FIG. 3, the electrode substrate 210 includes a first electrode 211 and a second electrode 212 branched at a plurality of stages, and one of the electrodes in the display region 215 is included in these electrodes. The branches having the ends of the branches are alternately arranged so as to fall between the two branches having the two ends of the other electrode branch. The first electrode 211 and the second electrode 212 have the same potential when the slit of the parallax barrier is not formed, and the same as the first electrode 211 when the slit of the parallax barrier is formed. A predetermined voltage different from the potential is applied. In FIG. 3, the number of slits is reduced and simplified in order to avoid complication of the drawing.

  4 shows a cross-sectional view of the liquid crystal parallax barrier panel 200 at the position of the line AA of the electrode substrate 210 of FIG. As shown in FIG. 4, the liquid crystal parallax barrier panel 200 has a structure in which an electrode substrate 210, a liquid crystal layer 202, and a sealing substrate 204 are sequentially stacked. The electrode substrate 210 has a voltage applied to the glass substrate 216, the first electrode 211 (branch part a), the second electrode 212 (branch part b) arranged in the same layer as the first electrode 211, and the first electrode 211. And an alignment film 217 that aligns the molecules of the liquid crystal composition in a predetermined direction when not applied. On the other hand, the sealing substrate 204 includes an alignment film 206, a glass substrate 207, and a polarizing plate 208, but no electrode is disposed.

  When a predetermined voltage is applied to the first electrode 211, the liquid crystal parallax barrier panel 200 is between the branch part a at the end of the first electrode 211 and the branch part b at the end of the second electrode 212. Create an electric field. This electric field changes the orientation of the molecules of the liquid crystal composition in the upper layer of these branches a and b and blocks the light from the backlight 132, thereby forming a slit and functioning as a parallax barrier. FIG. 5 shows a state of the display area 215 when a predetermined voltage is applied to the first electrode 211. A black portion indicates a portion where light from the backlight 132 is blocked.

  Therefore, in the liquid crystal parallax barrier panel 200 of the first embodiment, since the electrodes are provided only on one substrate, a liquid crystal parallax barrier panel and a liquid crystal display device using the same can be manufactured at a lower cost.

  FIG. 6 schematically shows the arrangement of electrodes on an electrode substrate 250, which is a modification of the first embodiment. Similar to the first embodiment described above, the electrode substrate 250 includes a first electrode 251 and a second electrode 252 that are branched in a plurality of stages, and one of these electrodes is displayed in the display region 215. The branches having the branch ends of the electrodes are alternately arranged so as to fall between the two branches having the branch ends of the other electrode. In this modification, the branch part c having the branch end of the first electrode 251 and the branch part d having the branch end of the second electrode 252 are bent in the middle and extend obliquely. The shape of this electrode is to improve the light shielding quality when the slit is formed, and an appropriate shape can be determined in consideration of the influence of the polarization direction of the polarizing film and the rubbing direction of the alignment film. it can.

  Therefore, even in the liquid crystal parallax barrier using the electrode substrate 250 of the modification of the first embodiment, since the electrode is provided only on one substrate, the liquid crystal parallax barrier panel and the liquid crystal using the same are more inexpensively provided. A display device can be manufactured.

[Second Embodiment]
FIG. 7 schematically shows the arrangement of the electrodes of the electrode substrate 310 of the liquid crystal parabax barrier in the liquid crystal display device according to the embodiment of the present invention. The configuration of the liquid crystal display device using this electrode substrate 310 is the same as the configuration of the liquid crystal display device 100 of FIG. 1 and the configuration of the liquid crystal module 130 of FIG. .

  As shown in FIG. 7, the electrode substrate 310 includes a first electrode 311 having a branch e having a branch end extending in the horizontal direction of the drawing, and a branch f having a branch end extending in the vertical direction of the drawing. Two electrodes 312 and a third electrode 313 extending over the entire display area surface are provided, and each electrode is arranged in a different layer. The first electrode 311, the second electrode 312, and the third electrode 313 have the same potential when the slit of the parallax barrier is not formed, and the first electrode 311 when the slit in the horizontal direction is formed. A predetermined voltage is applied only to the first electrode 311 and the third electrode 313 to form an electric field. In addition, when the vertical slit is formed, a predetermined voltage is applied only to the second electrode 312, and an electric field is formed between the second electrode 312 and the third electrode 313. In FIG. 7, the number of slits is reduced and simplified in order to avoid complication of the drawing.

  FIG. 8 shows a cross-sectional view of the liquid crystal parallax barrier panel 300 at the position of line BB of the electrode substrate 310 of FIG. As shown in FIG. 8, the liquid crystal parallax barrier panel 300 has the same configuration as that of the first embodiment except for the electrode substrate 310. The electrode substrate 310 includes a glass substrate 216, a first electrode 311 (branch portion e), a second electrode 312 (branch portion f) disposed in a different layer from the first electrode 311, the first electrode 311 and the second electrode 311. The third electrode 313 arranged in a layer different from both of the electrodes 312, the insulating layer 305 that insulates the first electrode 311, the second electrode 312, and the third electrode 313 from each other, and the first electrode 311 or the second electrode 312 And an alignment film 217 for aligning the molecules of the liquid crystal composition when no voltage is applied.

  When a predetermined voltage is applied to the first electrode 311, the liquid crystal parallax barrier panel 300 forms an electric field between the branch portion e extending in the lateral direction of the first electrode 311 and the third electrode 313. This electric field changes the molecular orientation of the liquid crystal composition in the upper layer of these branches e and f and blocks the light from the backlight 132, thereby forming a lateral slit and functioning as a parallax barrier. To do. In addition, when a predetermined voltage is applied to the second electrode 312, an electric field is formed between the third electrode 313 and the branch f extending in the vertical direction of the second electrode 312. This electric field changes the molecular orientation of the liquid crystal composition in the upper layer of these branches e and f and blocks the light from the backlight 132, thereby forming a longitudinal slit and functioning as a parallax barrier. .

  In the present embodiment, three electrodes of the first electrode 311, the second electrode 312, and the third electrode 313 are used. However, any one of the first electrode 311 and the second electrode 312 is missing. Even in such a case, it can be used as a parallax barrier for forming a slit in only one direction, and such a configuration may be used.

  Therefore, in the liquid crystal parallax barrier panel 300 of this embodiment, since the electrodes are provided only on one substrate, the liquid crystal parallax barrier panel and the liquid crystal display device using the same can be manufactured at a lower cost.

[Third Embodiment]
FIG. 9 schematically shows the arrangement of electrodes of the electrode substrate 410 of the liquid crystal parabax barrier in the liquid crystal display device according to the embodiment of the present invention. The configuration of the liquid crystal display device using the electrode substrate 410 is the same as the configuration of the liquid crystal display device 100 of FIG. 1 and the configuration of the liquid crystal module 130 of FIG. .

  As shown in FIG. 9, the electrode substrate 410 includes a first electrode 411 and a second electrode 412 in which branch portions g and branch portions h having branch ends extend opposite to each other in the horizontal direction of the drawing. The branch part i and the branch part j which have the terminal are provided with the 3rd electrode 413 and the 4th electrode 414 which are mutually opposed and extended in the vertical direction of drawing, and the 1st electrode 411 and the 2nd electrode 412 are the same layers The third electrode 413 and the fourth electrode 414 are layers different from the layer where the first electrode 411 and the second electrode 412 are disposed, and are disposed in the same layer.

  The first electrode 411, the second electrode 412, the third electrode 413, and the fourth electrode 414 have the same potential when the slit of the parallax barrier is not formed, and when the slit in the horizontal direction is formed. Applies a predetermined voltage only to the first electrode 411 to form an electric field between the first electrode 411 and the third electrode 413 and the fourth electrode 414. In addition, when the vertical slit is formed, a predetermined voltage is applied only to the third electrode 413, and an electric field is formed between the third electrode 413, the first electrode 411, and the second electrode 412. In FIG. 9, the number of slits is reduced and simplified in order to avoid complication of the drawing.

FIG. 10 is a cross-sectional view of the liquid crystal parallax barrier panel 400 taken along the line CC of the electrode substrate 410 in FIG. As shown in FIG. 9, the liquid crystal parallax barrier panel 400 has the same configuration as that of the first embodiment except for the electrode substrate 410. The electrode substrate 410 includes the glass substrate 216, the first electrode 411 (branch portion g) and the second electrode 412 (branch portion h), the first electrode 411, and the second electrode formed in the same layer as described above. A third electrode 413 (not shown) that is different from the layer on which the electrode 412 is formed and is formed in the same layer
And the fourth electrode 414, the layer in which the first electrode 411 and the second electrode 412 are formed, and the insulating layer 405 that insulates the layer in which the third electrode 413 and the fourth electrode 414 are formed, and the first electrode 411 Alternatively, an alignment film 217 that aligns molecules of the liquid crystal composition when voltage is not applied to the third electrode 413 is provided.

  When a predetermined voltage is applied to the first electrode 411, the liquid crystal parallax barrier panel 400 has an electric field between the branch portion h extending in the lateral direction of the first electrode 411 and the third electrode 413 and the fourth electrode 414. Form. This electric field changes the orientation of the molecules of the liquid crystal composition in the upper layer of these branches h and blocks the light from the backlight 132, thereby forming a slit and functioning as a parallax barrier. Further, when a predetermined voltage is applied to the third electrode 413, an electric field is formed between the branch portion j extending in the vertical direction of the third electrode 413 and the first electrode 411 and the second electrode 412. This electric field changes the molecular orientation of the liquid crystal composition in the upper layer of these branches j and blocks light from the backlight 132, thereby forming a slit and functioning as a parallax barrier.

  Therefore, in the liquid crystal parallax barrier panel 400 of this embodiment and the liquid crystal display device using the same, the electrodes are provided only on one substrate, so that these can be manufactured at a lower cost.

[Fourth Embodiment]
FIG. 11 shows a configuration of the liquid crystal module 150 in the liquid crystal display device according to the embodiment of the present invention. The configuration of the liquid crystal display device in which the liquid crystal module 150 is used is the same as the configuration of the liquid crystal display device 100 of FIG. The liquid crystal module 150 includes a liquid crystal parallax barrier panel 500. The liquid crystal parallax barrier panel 500 has a configuration in which the electrode substrate 210 and the sealing substrate 204 in FIG.

  Even with such a configuration, a slit can be formed. Similarly to the first embodiment, in the liquid crystal parallax barrier panel 500 of the fourth embodiment, since the electrodes are provided only on one substrate, the liquid crystal parallax barrier panel and the liquid crystal using the same can be manufactured at a lower cost. A display device can be manufactured.

[Fifth Embodiment]
FIG. 12 shows a configuration of the liquid crystal module 170 in the liquid crystal display device according to the embodiment of the present invention. The configuration of the liquid crystal display device in which the liquid crystal module 170 is used is the same as the configuration of the liquid crystal display device 100 of FIG. The liquid crystal module 170 is configured by replacing the liquid crystal parallax barrier panel 200 and the liquid crystal panel 131 in the first embodiment. Even with such a configuration, it is possible to observe a three-dimensional image by light through the slit. Further, since the electrodes are provided only on one substrate as in the first embodiment, a liquid crystal parallax barrier panel and a liquid crystal display device using the same can be manufactured at a lower cost.

[Sixth Embodiment]
FIG. 13 shows a plasma display device 600 according to an embodiment of the present invention. The liquid crystal parallax barrier panel 200 of the first embodiment described above and the known plasma panel 610 that performs display by light emission by discharge are configured. Even with such a configuration, it is possible to observe a three-dimensional image, and, as in the first embodiment, since the electrodes are provided only on one substrate, the liquid crystal parallax barrier panel can be manufactured at a lower cost. And a plasma display device using the same can be manufactured.

  In each of the above-described embodiments, a liquid crystal panel or a plasma panel is used. However, the present invention is applied to a display device using other display units such as an organic EL (Electro-luminescent) panel and a CRT (Cathode Ray Tube). be able to.

  Moreover, the shape and arrangement of the electrodes described in the above embodiments are merely examples, and the present invention is applied to a liquid crystal parallax barrier in which electrodes are arranged only on one substrate.

100 liquid crystal display device, 110 upper frame, 120 lower frame, 130, 150,
170 Liquid crystal module, 131 Liquid crystal panel, 132 Backlight, 200,300
, 400, 500 Liquid crystal parallax barrier panel, 202 Liquid crystal layer, 204 Sealing substrate, 206, 217 Alignment film, 207, 216 Glass substrate, 208 Polarizer, 210, 250, 310, 410 Electrode substrate, 211, 251, 311 411 First electrode 212
, 252, 312, 412 Second electrode, 215 Display region, 305, 405 Insulating layer, 313, 413 Third electrode, 414 Fourth electrode, 600 Plasma display device, 610 Plasma panel.

Claims (10)

A liquid crystal parallax barrier that forms a parallax barrier for performing three-dimensional display by controlling the orientation of liquid crystal molecules,
A first substrate and a second substrate installed in parallel to each other;
Liquid crystal sealed between the first substrate and the second substrate;
A plurality of electrodes disposed on the first substrate,
No electrode is formed on the second substrate,
The plurality of electrodes include a first electrode and a second electrode,
The first electrode has a plurality of first branches branched and having ends of the branches;
The liquid crystal is aligned by an electric field generated between the first electrode and the second electrode by applying different voltages to the first electrode and the second electrode, thereby forming a parallax barrier ;
The first electrode and the second electrode are formed on the same plane,
Each of the second electrodes has a plurality of second branches branched and having ends of the branches.
Alternately arranged such that each of the first branches is between two of the second branches ,
A liquid crystal parallax barrier. 2. The liquid crystal parallax barrier according to claim 1 , wherein each of the first branches is alternately arranged so as to enter between the two second branches adjacent to each other. Wherein said second branch portion and the first branch portion is bent, a liquid crystal parallax barrier according to claim 1 or claim 2, characterized in that. A liquid crystal parallax barrier that forms a parallax barrier for performing three-dimensional display by controlling the orientation of liquid crystal molecules,
A first substrate and a second substrate installed in parallel to each other;
Liquid crystal sealed between the first substrate and the second substrate;
A plurality of electrodes disposed on the first substrate,
No electrode is formed on the second substrate,
The plurality of electrodes include a first electrode and a second electrode,
The first electrode has a plurality of first branches branched and having ends of the branches;
The liquid crystal is aligned by an electric field generated between the first electrode and the second electrode by applying different voltages to the first electrode and the second electrode, thereby forming a parallax barrier;
The second electrode is formed on a different plane from the first electrode and has a rectangular plane,
It said first branch portion, in a direction in which one side of the plane of the rectangle extends extends across the plane of the rectangular, you wherein the liquid crystal parallax barrier. A liquid crystal parallax barrier that forms a parallax barrier for performing three-dimensional display by controlling the orientation of liquid crystal molecules,
A first substrate and a second substrate installed in parallel to each other;
Liquid crystal sealed between the first substrate and the second substrate;
A plurality of electrodes disposed on the first substrate,
No electrode is formed on the second substrate,
The plurality of electrodes include a first electrode and a second electrode,
The first electrode has a plurality of first branches branched and having ends of the branches;
The liquid crystal is aligned by an electric field generated between the first electrode and the second electrode by applying different voltages to the first electrode and the second electrode, thereby forming a parallax barrier;
A third electrode having a plurality of third branches branched and having ends of the branches;
The first electrode, the second electrode, and the third electrode are formed on different planes,
The second electrode has a rectangular plane;
The first branch extends across the rectangular plane in a first direction in which a first side of the rectangular plane extends;
It said third branch, said the first second direction crossing the direction, extends across the rectangular planar, you wherein the liquid crystal parallax barrier. A first potential is applied to the first electrode, and a second potential different from the first potential is applied to the second electrode to form a first parallax barrier;
A third potential different from the second potential is applied to the third electrode, and a second parallax barrier is formed by applying the second potential to the second electrode;
6. The liquid crystal parallax barrier according to claim 5 , wherein the formation of the first parallax barrier and the formation of the second parallax barrier can be switched. A liquid crystal parallax barrier that forms a parallax barrier for performing three-dimensional display by controlling the orientation of liquid crystal molecules,
A first substrate and a second substrate installed in parallel to each other;
Liquid crystal sealed between the first substrate and the second substrate;
A plurality of electrodes disposed on the first substrate,
No electrode is formed on the second substrate,
The plurality of electrodes include a first electrode and a second electrode,
The first electrode has a plurality of first branches branched and having ends of the branches;
The liquid crystal is aligned by an electric field generated between the first electrode and the second electrode by applying different voltages to the first electrode and the second electrode, thereby forming a parallax barrier;
A third electrode formed on the same plane as the first electrode, and a fourth electrode formed on the same plane as the second electrode,
The first electrode and the third electrode are formed in a different planar shape from the second electrode and the fourth electrode,
The second electrode is branched, has a plurality of second branches that have ends of the branches and extend in a direction different from a direction in which the first branch extends;
The third electrode has a plurality of third branches extending in different directions in parallel with a direction in which the first branch extends and having a branch end;
The fourth electrode is branched, has a plurality of fourth branches extending in different directions in parallel to a direction in which the second branch extends and having ends of the branches.
The first branch extends between the two third branches;
The second branch extends between the two fourth branches;
Of the first electrode and the second electrode, a branch portion having the branch end of one electrode extends so as to enter between two branches having the branch end of the other electrode. it shall be the said liquid crystal parallax barrier. A first potential is applied to the first electrode, and a second potential different from the first potential is applied to the second electrode and the fourth electrode, whereby a first parallax is applied. Form a barrier,
A third potential is applied to the second electrode, and a fourth potential different from the third potential is applied to the first electrode and the third electrode. Form a barrier,
The liquid crystal parallax barrier according to claim 7 , wherein the formation of the first parallax barrier and the formation of the second parallax barrier can be switched. And the liquid crystal parallax barrier according to any one of claims 1 to 8, a display device and a display unit for the liquid crystal parallax barrier parallel to the display surface is arranged. Light is irradiated to the liquid crystal parallax barrier according to any one of claims 1 to 8 , a liquid crystal panel arranged in parallel with the liquid crystal parallax barrier, the liquid crystal panel and the liquid crystal parallax barrier. And a backlight.

Images