JP2008083073A - Stereoscopic display device and driving method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stereoscopic display device which can be improved in picture quality of stereoscopic display and made low-cost by taking countermeasures against crosstalk by fields in the conventional time-division stereoscopic display device. <P>SOLUTION: The stereoscopic display device has a display part 101, a lens array 112, and a shutter means 113, and the display unit 101 has a display drive part which performs driving by columns in line sequence and makes a scan in the pitch direction of a lenticular lens 112 to display an image and a shutter electrode drive part which performs driving for opening and closing shutters in synchronism with scan rewriting of an image of the display part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a stereoscopic display device, and more particularly to a display device and a driving method for performing stereoscopic display in a time division manner.

  As a technique for displaying a stereoscopic image using a two-dimensional flat display device, a multi-viewpoint stereoscopic image display device has been proposed (for example, Non-Patent Document 1). This is provided with optical image selection means for combining and displaying images from a number of line-of-sight directions on the image display surface and selectively visually recognizing corresponding images according to the viewpoint position of the observer. This display method is superior in terms of a stereoscopic display method that does not use glasses.

  The principle of selectively viewing the corresponding image according to the observer's viewpoint position is to limit the pixels that can be viewed from the observer's viewpoint position direction using an optical image selection means comprising a slit opening or a lenticular lens. It depends. Such three-dimensional display is a so-called integral photography method, a light beam reproduction method, or a method called multi-view type, super multi-view type, or the like. Although these can be said to have similar basic configurations and the same principle for forming a stereoscopic image, the light beam reproduction method is preferable because it can display a stereoscopic image continuously without depending on the position of the viewpoint. In any case, by increasing the number of lines of sight and making the lens pitch finer, the light beam reproduction of the stereoscopic image actually approaches the light beam from the three-dimensional image and becomes optically equivalent to what actually exists. Display performance is improved.

  When converting the light from each point of the stereoscopic image from the two-dimensional image into the angle to reproduce, the angle range in which the stereoscopic display can be seen, the number of rays (number of parallaxes), and the display pitch are used as parameters, and the stereoscopic display is predetermined. These parameters can be obtained at a predetermined resolution, but these parameters have a trade-off relationship while the pixel pitch of the display unit is constant.

  In the image of the display unit corresponding to the lens pitch, the pixel pitch within the lens pitch is the number of rays (number of parallaxes), and the angular resolution that leads to the resolution of the stereoscopic display is a value obtained by dividing the number of rays by the angle range to be reproduced. is there.

In order to widen the angle range, Patent Documents 1 and 2 propose a method of switching the lens in a time division manner to widen the display area of the display unit.
J. Opt. Soc. Am. A Vol.15 p.2059 (1998). JP-A-10-206795 JP 2003-177355 A

  However, the techniques described in Patent Documents 1 and 2 are provided with a lens and a shutter and switching the lens to form a corresponding display image on the display unit. However, when the image is switched, the stereoscopic image is disturbed and crosstalk is caused. There is a problem that measures are not enough. In particular, since the optical response is not ideal for a display unit and a shutter using a liquid crystal, it is necessary to sufficiently consider the time-division display that is switched at a high speed.

Furthermore, in order to improve the stereoscopic display, it is necessary to reduce the rewrite time in order to increase the number of pixels by reducing the pixel pitch of the display unit and to perform high-speed display for time division. Therefore, the present invention has a problem that the overall performance of the 3D display cannot be improved. As a result, the present invention makes it possible to take measures against crosstalk for each field in a conventional time-division 3D display device. An object of the present invention is to provide a stereoscopic display device that can achieve high image quality and low cost as display.

  A stereoscopic display device according to the present invention is provided on the display unit, the display unit including a plurality of pixels arranged in a matrix, a scanning line arranged along a column, and a signal line arranged along a row. Optical control means for emitting light by aligning the light from the pixels at a predetermined angle, and arranging a major component of a long axis of the lenticular lens element along the row of the display unit, and the lens element And a plurality of lens arrays arranged in parallel, and electrodes provided for each lens element along the long axis direction of the lens array, and passing the lens transmitted light from the display unit by opening and closing the electrodes collectively The shutter means for controlling the presence / absence of the display and the display unit are driven line-sequentially for each column, and the display driving unit for scanning the lenticular lens in the pitch direction to display an image, and the image on the display unit being synchronized with the scanning rewriting And And having a shutter driving unit for driving the unit.

  A stereoscopic display device driving method according to the present invention includes a display unit that includes a plurality of pixels arranged in a matrix, a scanning line that selects and scans the pixels for each column, and a signal line that supplies an image signal for each row. Optical control means provided on the display unit and emitting light beams with the light from the pixels aligned at a predetermined angle, the major axis of the lenticular lens element being the main component in the column of the display unit A lens array in which a plurality of the lenses are arranged in parallel at a constant pitch, and an electrode group in which the lens transmitted light from the display unit is provided for each lens along the lens major axis direction. In a stereoscopic display device having shutter means that collectively opens and closes by electrodes electrically connected at a predetermined pitch within the block parallel to the pixel row, the lens pitch of 1 corresponds to the image on the display unit. Transmits through a large integer multiple lens 1 field is displayed in such a way that the lens light in between is closed and does not contribute to the display, and the lens is sequentially switched to n fields corresponding to the change of the image on the display section to another field for each column. The shutter is driven so that it returns to the original lens, and the display unit drives line-sequentially for each column to display a one-field screen that reproduces the light emitted from the predetermined lens, and in the next field, another lens. A field screen for reproducing the light rays emitted from the display is displayed, and the display is driven so as to return to the original lens in the n field, and the pixel column of the display unit which is rewritten in a line sequential manner starts to be displayed as a new field. The shutter of the corresponding lens is closed during the period from the time until the optical response.

  According to the present invention, it is possible to take measures against crosstalk for each field in a conventional time-division stereoscopic display device, and to provide a stereoscopic display device that can achieve high image quality and low cost as stereoscopic display.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description of the drawings, the same portions are denoted by the same reference numerals, and overlapping descriptions are omitted. The drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Further, there are included portions having different dimensional relationships and ratios between the drawings.

(First embodiment)
FIG. 1 is a partial perspective view of the stereoscopic display device according to the first embodiment.

  As shown in FIG. 1, the stereoscopic display device according to this embodiment includes a display unit 101 and an optical control unit 111 provided on the front surface of the display unit 101.

  The display unit 101 includes pixels 102, scanning lines 104, and signal lines 105.

  Each of the scanning lines 104 extends in the column direction (vertical direction on the paper surface, hereinafter the same), and a plurality of scanning lines 104 are arranged in a row direction (horizontal direction on the paper surface, hereinafter the same) that intersects the column direction.

  Each of the signal lines 105 extends in the row direction intersecting with the plurality of scanning lines 104, and a plurality of signal lines 105 are arranged in the column direction intersecting with the row direction.

  A plurality of pixels 102 are arranged in a matrix direction corresponding to the intersection of the scanning line 104 and the signal line 105, and a pixel switch (not shown) whose switching operation is controlled by the scanning signal supplied from the scanning line 104 And a pixel electrode (not shown) connected to the signal line 105 via a pixel switch.

In FIG. 1, reference numeral 103 denotes a scanning direction (driving direction) of the scanning line when performing matrix driving. In this embodiment, rewriting is performed for each column (including both for each column and for each of a plurality of columns) in the direction from left to right in FIG. This rewriting method will be described later.

  The optical control unit 111 includes a lenticular lens (hereinafter simply referred to as a lens) 112 and a shutter unit 113.

The lens 112 is provided on the front surface of the display unit 101, and includes an incident surface (planar surface) 112 a on which light rays from the display unit 101 are incident, and an emission surface (convex surface) 112 b on which incident light rays are emitted. The long axis extends in the column direction of the display unit 101 and the short axis extends in the row direction of the display unit 101, and a plurality of lenses 112 are arranged along the short axis direction (row direction). The lens 112 has a function of controlling the direction of light rays from the display unit 101 and enlarging an image.

  The shutter unit 113 is provided on the front surface of the exit surface (convex surface) 112 b of the lens 112, extends in the column direction of the display unit 101 corresponding to the lens 112, and further arranged in a plurality in the row direction corresponding to the lens 112. Has been. That is, a plurality of shutter means 113 are arranged in the row direction so that the opening portion is aligned with the lens element of the lens 112 and can be collectively opened and closed in the long axis direction of the lens 112. The shutter means 113 includes a plurality of shutter elements 114 that block and transmit light passing through the lens 112, and a black matrix (light-shielding portion) 115 that is provided between the shutter elements 114 and prevents light leakage between the shutter elements 114. It consists of

  For the shutter element 114, it is effective to use liquid crystal in order to stably obtain high speed. When liquid crystal is used, a transparent electrode for controlling the alignment of the liquid crystal is provided, and a voltage is applied to the transparent electrode to control the polarization of light passing therethrough. Note that the shutter element 114 according to the present embodiment can be applied not only to the above-described liquid crystal shutter but also to other technologies such as optical elements and micromachines. In the drawings of the present invention, a state where the shutter is closed in the shutter element is indicated by hatching at a plurality of points. The same applies to the following.

  The black matrix 115 can improve the contrast of the shutter operation (ratio of the black level when closed and the white level when transmitted). Further, due to scattering and refraction generated at the boundary between the lenses 112, light coming from an oblique direction or slightly distant from light from the display unit 101 is emitted to the front surface to become inappropriate light, resulting in a three-dimensional result. It is also effective in preventing the image quality, particularly the contrast, from being lowered. It is also effective in reducing and preventing reduction in contrast due to reflection at the lens boundary due to external light from the environment.

  As shown in FIG. 1, when the shutter unit 113 is arranged so that the light from the pixel 102 of the display unit 101 passes through the lens 112, the shutter unit 113 sees the light spread by the lens 112. Since the light also appears to be emitted from the shutter opening at an angle, the positional accuracy is improved and the resolution is increased. However, the shutter unit 113 may be provided between the display unit 101 and the lens 112, that is, between the display unit 101 and the incident surface 112 a of the lens 112.

  FIG. 2 shows a block diagram of a system including a drive system of the stereoscopic display device according to the present embodiment.

The display unit 101 includes a display region 201 including pixels, scan lines, signal lines, and the like illustrated in FIG. 1, a scan line drive circuit 202 that drives the scan lines, a signal line drive circuit 203 that drives the signal lines, The display unit control circuit 204 controls these drive circuits and supplies image signals. The optical control unit 111 includes a shutter electrode 211, a shutter drive circuit 212 that drives the shutter electrode 211, and a shutter control circuit 213 that controls the shutter drive circuit 212 to generate and supply a shutter opening / closing pattern. The display unit control circuit 204 and the shutter control circuit 213 are driven by a synchronizing signal that synchronizes with each other. The shutter electrode 211 corresponds to the shutter element 114 described above.

  The scanning line driving circuit 202 is mainly composed of a shift register and an output voltage conversion buffer, and the signal line driving circuit 203 is composed of a shift register, a signal sampling circuit, a signal line voltage (current) output buffer, and the like. The scanning direction of the scanning line can be determined by the scanning direction of the shift register of the scanning line driver circuit 202. The shutter drive circuit 212 is also composed of a shift register and a drive voltage output buffer.

  The driving of the display unit 101 is performed by driving the scanning line driving circuit 202 for each column (including every column as well as every plurality of columns) and rewriting in the column direction (103 in FIG. 1). The shutter electrode 211 is driven by driving the shutter drive circuit 212 for each lens element of the lenticular lens 112 at a time. For this reason, the shutter drive circuit 212 only needs to be configured in one dimension. Further, the shutter drive circuit 212 may be driven in the same direction as the scanning direction of the scanning line (left to right on the paper surface) at a timing described later.

  FIG. 3 is a schematic cross-sectional view showing a light beam reproduction method for stereoscopic display of the stereoscopic display device according to the present embodiment, and shows a state of a display image in which shutters are opened at a constant pitch. If the aperture position is changed and displayed, a parallax display can be obtained over the entire area. However, since the display unit 101 requires a certain time for rewriting in a liquid crystal display device or the like, it is necessary to display while rewriting. .

  As shown in FIG. 3, the light beam from the pixel 102 of the display unit 101 enters the lens 112. It is desirable that the focal length of the lens 112 be approximately matched to the pixel surface. In the opening 301 where the shutter 113 is opened, the light beam from one point on the pixel is emitted as a substantially parallel light beam 302, and the light of another pixel is emitted as a light beam 303 whose angle is slightly changed. The parallax is expressed by these lights. In the integral photography method and the light beam reproduction method, these light beams are displayed so as to be equivalent to the light from a portion of the three-dimensional image, so that it can be viewed as a three-dimensional image from the viewing side.

  In the stereoscopic display device according to the present embodiment, the display region 304 of the display unit that reproduces the light beam through the lens 112 corresponding to the opening 301 blocks light from the lens between them by a shutter. It can be assigned larger than the lens width. For this reason, enlargement can be obtained in the number of parallaxes, the angular resolution, and the viewing angle. In the stereoscopic display device according to the present embodiment, as shown in FIG. 3, for example, the pitch of the shutter after rewriting is every four lens pitches. Therefore, the angular resolution and the number of parallaxes can be improved by a factor of four at the same viewing angle. If one field is displayed at an interval of 1/240 seconds, for example, by changing the shutter aperture, the entire image is displayed at 60 Hz. Therefore, there is no flickering and all the shutters appear to be open, and stereoscopic vision is obtained.

FIG. 4 is a cross-sectional view showing the stereoscopic display device according to this embodiment in more detail.

  The display unit 101 includes a substrate 305, pixels 102 provided on the substrate 305, scanning lines and signal lines (not shown in FIG. 4). Specifically, the optical control unit 111 is formed integrally with the polarizing plates 325 and 336. That is, the optical control unit 111 includes a polarizing plate 325, a transparent substrate 327 in contact with the polarizing plate 325, a lens 112 provided on a surface of the transparent substrate 327 that faces the surface on which the polarizing plate 325 is provided, A flat film 328 provided on the convex surface side, a shutter electrode 329 provided on the flat film 328, a liquid crystal layer 330 provided on the shutter electrode 329, and an opposing surface facing the shutter electrode 329 via the liquid crystal layer 330 An electrode 331, a counter substrate 332 that holds the counter electrode 331, and a polarizing plate 336 provided on the surface of the counter substrate 332 that faces the surface on which the counter electrode 331 is provided. That is, the shutter means 113 described above is a liquid crystal shutter including a shutter electrode 329 provided on the flat film 328, a liquid crystal layer 330, and a counter electrode 331 provided on the counter substrate 332. The light beam from the pixel 102 is polarized by the polarizing plate 325, passes through the lens 112 and the liquid crystal layer 330, changes its polarization plane, and is transmitted or blocked by the polarizing plate 336, thereby performing a shutter operation.

  Next, the drive mechanism according to this embodiment will be described. 5 to 8 are cross-sectional views for explaining the drive mechanism of the stereoscopic display device according to the present embodiment. FIG. 5 shows the same state as FIG. 3 except that the display area 101 of the display unit 101 corresponding to the opening part 404 of the shutter 113 is 401, and the display area of the display unit 101 corresponding to the opening part 405 of the shutter 113 is 402. Reference numeral 403 denotes a display area of the display unit 101 corresponding to the opening 406 of the shutter.

  When the scanning direction of the display unit 101 is from left to right on the paper surface in FIG. 5, first, a switching area 420 for newly switching images is scanned from left to right, and the display in the display area 401 is erased. At the same time, a new display area 411 newly rewritten after the switching area 420 is displayed from left to right (FIG. 6). In the switching area 420, there are pixels in a transient display state. The opening 404 of the shutter is closed as shown in FIG. 6 before the display rewriting starts, that is, before the switching area 420 scans into the display area 401. As a result, the image before rewriting and the image after rewriting coexist, or the inappropriate structure cannot be seen by the light from the display of the pixels in the rewriting transition region, thereby preventing the stereoscopic display disturbance (crosstalk). it can.

  Subsequently, the switching area 420 scans from the left to the right on the paper, and before the scanning area 420 is scanned into the display area 402, the shutter opening 405 is closed. Thereafter, the display area 402 is rewritten to the new display area 413 from left to right, and the opening position 415 that becomes the next opening position when the image of the newly rewritten display area 413 is stably obtained. Opens to display the display area 413 (FIG. 7).

  Subsequently, the switching area 420 scans from the left to the right on the paper surface, and before scanning into the display area 403, the shutter opening 406 is closed. Thereafter, the display area 403 is rewritten to the new display area 417 from the left to the right, and the opening position 419 which becomes the next opening position when the image of the newly rewritten display area 417 is stably obtained. Opens to display the display area 417 (FIG. 8).

  FIG. 9 shows the optical response of the shutter of FIGS. 5 to 8 and the optical response waveform of the display area. In FIG. 9, the horizontal axis represents time. The vertical axis represents optical response such as transmittance or luminance. FIG. 9 shows optical responses of the shutters 404 and 415 and the pixel 102 having the display area (pixels belonging to both the display area 401 and the display area 413). As shown in FIGS. 6 and 9, the shutter 404 is closed before the rewriting is started, and when the rewriting is completed, the shutter 415 is opened as shown in FIGS. As a result, the shutter near the pixel 102 is provided with a period indicated by 504 (hereinafter referred to as a shutter stop period). The presence of this period prevents crosstalk.

  Setting the shutter stop period 504 appropriately can be set freely if the driving of the shutter is one-dimensional and is driven by taking the AND of the selection of the opening and the opening period of the shutter. That is, it is possible to drive without increasing the clock frequency of the shutter-driven shift register, without burdening on power consumption and circuit cost, and sufficiently securing the shutter driving voltage.

  As described above, the driving method of the present invention can perform timing control without any load, and is thus optimal for measures against crosstalk. Since the shutter can be driven by supplying the voltage directly from the driving circuit, for example, the liquid crystal shutter can stably supply the on-voltage, and the difference from the off-voltage can be sufficiently increased, so that the contrast can be increased. In addition, since the drive voltage can be increased compared to matrix drive, high speed optical response is obtained, which is suitable for time-division drive. In addition, the circuit becomes simple and effective for cost reduction.

  The display unit may be OCB or the like in order to increase the response speed, or may use overdrive driving.

  Note that the timing of opening the shutter is not after the optical response of the pixel is completely rewritten, but when the opening of the shutter is started a little earlier in consideration of the response speed of the shutter opening, the transmission of the aperture is performed. The rate may be increased. This increases the shutter opening time and is effective in improving the brightness.

  FIG. 10 is a perspective view showing the optical response of the shutter described in FIGS. 5 to 8 and the optical response of the display area from an oblique direction.

The display areas 601 and 602 corresponding to the shutters 603 and 604 are rewritten to become new display areas 606 and 607, and the shutter 605 corresponding to the rewritten display areas 606 and 607 is opened. In this embodiment, the pitch of the shutter before rewriting is every four lens pitch units, and as shown in FIGS. 10 (a) to 6 (b), the position where the next shutter opens is an intermediate position. It has become.

  FIG. 11 is a cross-sectional view showing one cycle of the change in the position of the shutter opening. In the first stage, the shutter 701 and the shutter 705 are opened (FIG. 11A), in the next stage the shutter 703 is opened (FIG. 11B), and in the next stage the shutter 702 is opened (FIG. c)), and in the next stage, the shutter 704 opens (FIG. 11D), and the original position (FIG. 11A) opens. By selecting in such a way, when obtaining stereoscopic vision in time division, even when the eyeball moves the line of sight from left to right at high speed, even with field frequencies where flicker is not visible with normal eye movements The moment opposite to the moment when the opening position matches the direction of movement of the line of sight can be mixed, and the movement of the shutter can be prevented from being visually recognized. In order to obtain this effect, it is preferable to have at least one state in which the direction is reversed in the shutter selection sequence. Furthermore, it is good to carry out in the state of at least half of the whole. A direction in which the moving distance of the opening is small may be considered as a selection direction. In FIG. 11, if the selection direction is right from (a) to (b), it is left from (b) to (c), is right from (c) to (d), and is from (d) to (a). Includes a state in which the left and right directions are reversed, and the right and left directions are reversed. In addition, the selection of every n lenses may be repeated in the n × m field, and the reverse direction may be added by changing i in n × m. Also, as shown in FIG. 7 and the like, regularity in one direction may be reduced depending on the direction and the size when intermediate positions are selected from each other.

  Increasing the field frequency is also effective in reducing this phenomenon. In that case, even if the adjacent shutters are sequentially selected in one direction, they are not visually recognized, and it is conceivable to use them at an appropriate speed.

(Second Embodiment)
The stereoscopic display device according to the second embodiment is characterized by the configuration of the display unit 101 of the stereoscopic display device described in the first embodiment. FIG. 12 is a circuit configuration diagram corresponding to the minor axis direction of the lenticular lens 112 of the display unit 101 according to the second embodiment.

The stereoscopic display device according to the present embodiment is an active matrix display device, and pixel electrodes 801 and 802 are selected by a common scanning line 803, and signal lines 804 and 802 are respectively connected to the pixel electrodes 801 and 802. A pixel signal from 805 is supplied. Thin film transistors (TFTs) 807 and 808 are provided corresponding to the intersections of the scanning lines 803 and 803 ′ and the signal lines 804 and 805. Each TFT has a gate serving as a scanning line 803 and a source serving as a signal. The drains are connected to the lines 804 and 805 and the pixel electrodes 801 and 802, respectively. Further, storage capacitors 809 and 810 for holding the pixel voltage are connected to the respective pixel electrodes 801 and 802, and the other ends are connected to the storage capacitor lines 806 and 806 ', respectively. In the stereoscopic display device according to the present embodiment, the lenticular lens 112 and the shutter element 114 are arranged with the long axis of the lens along the scanning line with respect to the pixels of the display unit, as in the first embodiment.

  As described above, in the present embodiment, the pixels adjacent in the scanning direction of the scanning line are configured as a pair, and the storage capacitor line is disposed between the pair of pixel blocks. As a result, twice as many pixel lines as the number of scanning lines are realized, and the storage capacitor lines can be arranged efficiently, so that a high-definition display unit can be obtained in the scanning line array direction, Image quality can be improved. Since two image signals from the signal line are sent simultaneously, the scanning time can be doubled, and the writing time in time-division display can be secured.

In the case of a pixel having a large aspect ratio in which the pixel pitch in the scanning line array direction is extremely smaller than the pixel pitch in the signal line array direction, the mutual influence between adjacent pixels is large due to the characteristics of the electrical and optical modulation (light emission) parts. Become. By driving adjacent pixels in the direction of small pixel pitch with the scanning line provided between them, the mutual influence can be reduced, and there is no unevenness of the display part and image quality defect, resulting in high image quality of stereoscopic display. It is done.

  In addition, in the stereoscopic display device according to the present embodiment, it is appropriate to set pixels adjacent to each other in the scanning line arrangement direction where the scanning lines are common in the display area corresponding to the lens as a block. Thereby, the homogeneity of the light beam reproduction and the high image quality can be obtained in the stereoscopic display.

FIG. 14 shows a layout diagram in the display portion when the circuit shown in FIG. 12 is used. FIG. 13 is a cross-sectional view taken along line A-A ′ of FIG. The last two digits of FIGS. 12 and 14 correspond to the corresponding configurations.

  Pixel electrodes 901 and 902 made of transparent electrodes are connected to transistors 907 and 908 via contact holes 920 and 920 '. The periphery of the pixel electrode is overlapped with the scanning line 903, 903 ′ and the storage capacitor line 906, 906 ′ at the left and right ends and the signal line 1504 (or 905) at the top and bottom ends to prevent light leakage between the pixel electrodes. Also serves as a black matrix. In this embodiment, the pixels have a horizontal direction (scanning line arrangement direction) pitch of 12 μm and a vertical direction (signal line arrangement direction) of 80 μm pitch. The dimensions are not limited to these, but the vertical direction can be longer than the horizontal direction.

  This is because, in the optical control by the lens, it is effective for the stereoscopic reproduction performance to reduce the pixel pitch in the horizontal direction and increase the resolution when performing the light angle control mainly in the horizontal direction. As a result, a vertically long pixel is formed as shown in FIG. 14, but since the scanning line and the storage capacitor line are arranged in the vertical direction, noise such as a penetration voltage fluctuation due to coupling with the pixel electrode in the selection period is sufficiently prevented. If considered, the influence on the image can be reduced. On the other hand, the signal lines 904 and 905 are arranged in the short side direction, and the coupling capacitance value with the pixel electrode is small. On the signal line side, signal fluctuations for other pixels always occur even before and after selection for writing to other pixels, and this influence reaches the pixel electrode and causes crosstalk. With this arrangement, the coupling can be reduced even if the signal lines are doubled, leading to an improvement in image quality, particularly dynamic image quality with high-speed response. In addition, in order to balance the overlap with the signal line 905 and the overlap with the signal line 1504 (904) and further correct the influence, an opening of the pixel electrode is formed on the signal line 905 as indicated by a broken line (921). This can be further improved. At the same time, the principal component of the long axis of the lenticular lens can be aligned in the scanning line arrangement direction, so that the shutter can be turned off collectively during screen rewriting and turned on after the rewriting response to prevent crosstalk. It is possible to omit the storage capacitor line and use only the common scanning line in the adjacent pixels.

  As described above, in this embodiment, the pixel vertical direction (signal line array direction) is 80 μm, and the pixel horizontal direction (scan line array direction) is 12 μm. The aspect ratio is 12: 80≈1: 6.67. The color arrangement is RGB in the vertical direction. If the lens pitch is 240 μm, the vertical direction is 240 μm and RGB is displayed. When viewed from a predetermined angle, one pixel appears to spread laterally on the lateral lens surface, so that a square pixel can be obtained in RGB units.

  Thus, when the pixel pitch in the signal line arrangement direction is large with respect to the scanning line arrangement direction, the influence between adjacent pixels is increased, which causes unevenness in the signal line arrangement direction in the pixel. In addition to electrical coupling, it is affected by an electric field applied to an optical modulation part such as a liquid crystal. In the liquid crystal, disclination occurs at the boundary and appears in the transmissive region, resulting in a decrease in contrast and a poor response that looks like burn-in. In particular, the transient response becomes more prominent in the high-speed operation of the time division drive. However, as in the present embodiment, the scanning is provided with adjacent pixels as a boundary, and the influence is mitigated, and the image quality of the display unit is improved even in pixels that are long in the vertical direction, and the performance of stereoscopic reproduction is also improved. Can be improved.

  The boundary between the paired blocks can be constant as a storage capacitor line or a constant potential between the capacitor lines, and image quality degradation due to the mutual influence at the block boundary can be reduced. The effect of reducing is obtained.

  Furthermore, if adjacent pixels of the same scan have the same color, the continuity of the drive signal is increased, which leads to reduction in unevenness. The stripe shape in which all the RGB in the horizontal direction are the same has a manufacturing advantage because the boundary of the color arrangement only needs to be in the vertical direction, and it also has an effect on the color continuity of light reproduction. The adjacent pixels common to the scanning line may have the same color and the RGB array may be changed in the horizontal direction, or every 4 to 10 pixels or about 1 to 3 times the lens pitch so that the aspect ratio is the same. The color arrangement may be changed.

  In the fine pixel in which the ratio of the pixel pitch in the scanning line arrangement direction to the signal line arrangement direction is 1: 4 or more, the time division drive is performed at a high speed, and the number of parallaxes for stereoscopic display is improved, the mutual influence between the pixels is as described above. In addition, due to the influence between the wiring and the pixel, the influence of occurrence of defects in the pixel display becomes larger at a longer pitch. Further, setting 1: 6 or more to 1:15 is highly feasible in expanding the number of parallaxes, so that an effective display area (aperture ratio) is obtained in the range of pixels with such a large aspect, and the mutual influences. In order to prevent this, this embodiment in which the scanning line is shared and becomes a boundary between adjacent pixels is optimal.

  The use of a low-temperature polysilicon TFT subjected to laser annealing recrystallization or the like as the TFT is suitable for short-time selection of time-division driving because of its high mobility. In FIG. 14, an undercoat layer 1031 is formed on a glass substrate 1030, a Si film is formed, crystallized by laser annealing, and then patterned to form a SiOx gate insulating film 1035. The gate electrode 1036, the scanning line, the upper electrode 1037 of the storage capacitor 1010, and the capacitor line 1006 'are formed and patterned with MoW or the like. An impurity is introduced by ion doping or the like using the electrode as a mask to form a channel 1032, a source 1033, and a drain 1034, thereby forming a TFT 1008. Signal lines 1004 and 1005, source and drain electrodes, and a connection electrode 1039 are formed through the interlayer insulating layer 1036. The storage capacitor 1010 can utilize the capacitance between the lower electrode 1043 of the Si layer, the gate insulating film 1035, and the upper electrode 1037 mainly between the electrode 1039 of the interlayer insulating layer. A planarization insulating layer 1038 is formed of acrylic resin or the like, and a pixel electrode 1002 made of ITO or the like is formed through a contact hole 1020 ', whereby an array substrate of a display portion is formed. The insulating layer 1038 may be colored to be a color filter.

  A counter electrode 1041 is formed on a counter substrate 1040 such as glass, an alignment film (not shown) such as PI is formed on each of the array substrates, alignment processing such as rubbing is performed, and then combined with an appropriate cell gap. Liquid crystal 1042 is injected to complete the liquid crystal cell.

  As shown in FIG. 14, since it can be a top gate planar type, a scanning line and a storage capacitor line 1006 ′ are provided in the same layer as the gate electrode 1036, and a signal line is formed in an interlayer insulating film thereon, scanning is performed. Since the number of insulating layers between the line and the pixel electrode is larger than that between the signal line and the pixel electrode, and the thickness can be increased, the coupling capacitance is reduced, and the noise caused by the potential fluctuation of the scanning line on the pixel electrode can be reduced.

(Third embodiment)
The stereoscopic display device according to the third embodiment is a modification of the configuration of the display unit of the stereoscopic display device described in the second embodiment. FIG. 15 is a circuit configuration diagram corresponding to the minor axis direction of the lenticular lens 112 of the display unit 101 according to the third embodiment, and FIG. 16 is a layout diagram of the display unit when the circuit shown in FIG. 15 is used. . The last two digits of the number correspond in FIGS.

  In this embodiment, the position of the transistor and the storage capacitor in the pixel are substantially point-symmetric between adjacent pixels, and the signal lines 1104, 1204 and 1105, 1205 are divided above and below the pixel. Is different. Although it is a liquid crystal display device, as shown in FIG. 16, the main openings can be shifted in the vertical direction by the pixel electrodes 1201 and 1202. As a result, the occurrence of moiré patterns due to repetition can be mitigated, and an oblique component can be included in the mitigation when the aspect ratio of the pixel pitch is large, so that the rubbing direction of the liquid crystal alignment film is set to 45 degrees obliquely. Is more effective.

  In FIG. 16, two thin film transistors of one pixel can be connected in series. By bringing the transistor connection intermediate points 1250 and 1251 to the adjacent pixel side, the transistor is serialized with a small pixel pitch in the horizontal direction, and the aperture ratio can be increased. When the transistors are serialized, even if there is a defect such as a large off-state current of one of the transistors, display failure does not occur, that is, yield is improved. This arrangement of series transistors is characterized in that an intermediate point is provided at an adjacent pixel, and can be applied not only to a point-symmetric layout but also when the transistor position is shifted between adjacent pixels. This is an effective configuration for obtaining performance by reducing the pixel pitch in the scanning line array direction under conditions where the processing accuracy is constant.

  In addition, since the adjacent pixels are arranged obliquely, the vertical non-light emitting (non-transmitting) portion does not continuously form a black band when the pixels are emitted in the horizontal direction by the lenticular lens, and are thick. It is possible to obtain a good image quality that eliminates the feeling of interference such as a black matrix. In addition, there is an effect of increasing the vertical resolution. In other words, in addition to the effects of the second embodiment, it can be said that a new image quality of stereoscopic display can be obtained.

(Fourth embodiment)
The stereoscopic display device according to the fourth embodiment is a case where the lenticular lenses of the stereoscopic display device described in the first embodiment are arranged obliquely in the pixel array of the display unit. In the case of anti-moire and normal vertical stripe color arrangements, it is known to arrange the lenses diagonally to obtain parallax. Even in this case, the basic concept of the present application can be applied.

  FIG. 17 is a partial perspective view of the stereoscopic display device according to the fourth embodiment. FIG. 18 is a projected arrangement view of pixels, lenses, and shutters of the stereoscopic display device according to the fourth embodiment. FIG. 6 is a block diagram of a system including a driving system of a stereoscopic display device according to a fourth embodiment.

  In the optical control unit 1301, the lenticular lens 1302 is arranged obliquely with respect to the arrangement of the display unit pixels 102. The angle was arctan (1/4) ≈14 degrees. In the case of a liquid crystal shutter, the shutter 1304 whose opening and closing is controlled by the shutter unit 1303 can be said to be equivalent to the shutter electrode, but is arranged along the long axis of the lens. By aligning the main component of the lens long axis with the scanning line of the display unit, a display without crosstalk can be obtained by controlling the aperture period in accordance with the rewrite period in accordance with the scanning direction 103 in the same manner as in the first embodiment. It is done. FIG. 19 shows a driving diagram. The driving circuit may be the same as that in the first embodiment, except that the shutter electrode 1501 is arranged obliquely.

  In driving, since the opening position of the shutter is different from the display portion in the vertical direction of the screen, the shutter may be turned off at the timing when the upper side starts to be rewritten, and turned on after the lower side is rewritten. As a result, the opening period is shortened corresponding to the difference between the upper and lower positions, and the brightness is slightly reduced, but crosstalk can be prevented and the circuit is lightly loaded. A wide screen having a horizontally long display portion is effective for widening the field of view even in stereoscopic display. However, if it is horizontally long, a decrease in the opening period is also small.

(Fifth embodiment)
The stereoscopic display device according to the fifth embodiment is a modification of the configuration of the display unit of the stereoscopic display device described in the fourth embodiment. FIG. 20 is a block diagram of a system including a drive system of a stereoscopic display device according to the fifth embodiment.

  In shutter driving, the shutter electrode corresponding to one lens element is divided into upper and lower electrodes 1611 and 1612 at the top and bottom of the screen. Drive circuits 1613 and 1614 are arranged above and below to drive the respective electrodes. In driving, if the range of the upper electrode is rewritten while the display area is scanned from left to right, the upper electrode 1611 can be turned on while the lower electrode 1612 of the same lens is turned off. When the display area corresponding to the lower electrode is rewritten, the lower electrode 1612 is also turned on. In this way, the decrease in the opening time in the oblique shutter arrangement can be halved, and the brightness can be increased. Further, when the liquid crystal display device is used for the display unit, it is possible to prevent the difference in response between the upper and lower sides from being seen due to the difference in response between the upper side and the lower side of the lens.

(Sixth embodiment)
The stereoscopic display device according to the sixth embodiment is a modification of the stereoscopic display device described in the fifth embodiment. In the fifth embodiment, two shutter drive circuits are provided above and below, but the electrode arrangement is different. By devising, it is possible to control the scanning block of the display unit and the aperture of the lens in the same way even if only one is used.

  FIG. 21 is a partial perspective view for explaining shutter elements of the stereoscopic display device according to the sixth embodiment. In FIG. 21, an electrode group in which the shutter electrode is divided into several for each lens element is configured, and the selected pitch of the lens (in this electrode group is divided into blocks displayed at the same time by scanning of the display unit ( Electrical connections 1703 are made with the lens of the next pitch (every four in the figure), and with the electrode groups of the lenses separated by four in the figure. Although the lens pitches 1701 and 1702 are deviated, the timing difference can be reduced by rewriting the pixel area by enabling the lens pitches to be driven simultaneously. At the connection boundary, the boundary of the display area is generated at the top and bottom only at the moment of rewriting. Since the distance between the lenticular lens and the display section increases when the viewing angle is increased as in the present application, parallax occurs and the display is disturbed when viewed through an appropriate lens, but the shutter can be closed as a whole during that period. Therefore, there is an effect of adopting the configuration of the present embodiment.

  By connecting diagonally at all the electrodes at the boundary position, the electrodes can be connected to each other even with only one layer.

Further, if a wiring layer insulated from the shutter electrode is provided, the wiring 1803 can be appropriately arranged and connected. FIG. 22 shows an example in which connections are made using thin lines, but it is also possible to obtain connections between electrodes while preventing short-circuiting between connection wires by dispersing lens boundaries and arrangement so that they are not visually recognized.

(Seventh embodiment)
The stereoscopic display device according to the seventh embodiment is a detailed configuration of the optical control unit. FIG. 23 is a cross-sectional view for explaining an optical control unit of a stereoscopic display device according to the seventh embodiment.

  A display portion 1901 is an active matrix liquid crystal display device. An array substrate in which an active matrix layer 1903 and a pixel electrode 1904 are formed on a substrate 1902 and a counter substrate 1907 in which a counter electrode 1906 is formed face each other, and the display portion liquid crystal layer 1905 is sandwiched therebetween. . Details are the same as those described in FIG. The display unit includes a backlight 1910, and light whose polarization is controlled by liquid crystal is displayed as a change in the amount of transmitted light by the rear polarizing plate 1908 and the front polarizing plate 1909. As the liquid crystal, OCB mode and ferroelectric liquid crystal are suitable for high-speed response. A TN with a narrow gap cell can be used depending on the application. A method such as MVA or IPS may be used. In order to improve the viewing angle characteristics of the liquid crystal, the polarizing plate may include a retardation film.

  The optical control unit 1930 forms a lens 1921 having a cylindrical curved surface on the transparent substrate 1920 by press molding or the like. As shown in FIG. 23, it is formed of a transparent resin or glass material having a refractive index n1 with the convex surface facing upward. The lens may be made of a material that does not disturb polarization. An acrylic resin or the like is preferable, but a material having a high refractive index that does not disturb polarization is more preferable. A flattened layer 1922 having a refractive index n2 is formed on the lens surface to form a flat surface. In the case of the figure, if n1> n2, it functions as a convex lens. The curvature and refractive index are adjusted so that the focal length matches the display pixel surface.

  A black matrix 1923 and a coating layer 1924 are formed thereon, and a transparent electrode 1925 is formed in a rectangular shape with a pattern that matches the lens. Although the position of the black matrix is not limited to this, in this embodiment, the black matrix is formed of a conductive material to which a potential for accelerating the bend transition of the liquid crystal layer is applied, which is a suitable arrangement for use of the OCB liquid crystal.

  A counter electrode 1927 is formed on the counter substrate 1928, an alignment film (not shown) and alignment processing are performed on each electrode surface, and a liquid crystal 1926 including a spacer that maintains a predetermined gap of about 3 to 5 μm is injected. . The polarizing plate of the liquid crystal shutter is shared with the polarizing plate 1909 of the display portion, and on / off of light is controlled together with the upper surface polarizing plate 1929. A retardation film may be included, and the intermediate polarizing plate 1909 may be multilayered.

  In this way, the optical control unit can be made with the same lens function and shutter function on the same substrate, so that precise alignment can be achieved, and the environmental resistance is greatly improved without being shifted from each other due to temperature changes. In addition, since the distance gs 1931 between the liquid crystal layer that is the subject of the shutter operation, the electrode that controls the liquid crystal layer, and the main surface of the lens function can be sufficiently close, in order to obtain a high-definition stereoscopic image with a small lens pitch Pl, A stereoscopic image with a large aperture ratio (As / Pl), that is, a bright image can be obtained.

In the case of the shutter arranged in front of the lens as shown in FIG. 23, assuming that the shutter effective aperture length As is the shutter-lens effective distance gs and the maximum viewing angle θ, the refractive index between the shutter and the lens is considered to be 1 ( Can be approximated)
As ≦ Pl-2 ・ gs ・ tan (θ / 2)
This is a condition that the opening does not change with angle, and it is understood that it is important that gs is small.

When the material between the shutter and the lens has a refractive index ns,
As ≦ Pl-2 ・ gs ・ ((1-k) tan (θ / 2) + k ・ tan (φ / 2))
Where k = d / gs, sin (φ / 2) = sin (θ / 2) / ns
It becomes. Similarly, satisfying this condition does not change the opening with the angle and luminance modulation does not occur, so that a good image can be obtained. Effective when ns> 1, the aperture ratio increases.

  As in this embodiment, lens-shutter integration is suitable for obtaining this condition.

In the present embodiment, the display unit is a liquid crystal, but an organic EL or the like may be used. Since the optical control unit has main characteristics, a polarizing layer 1909 can be provided for display in combination with an active matrix organic EL display device.

  In addition, this embodiment may be combined with other embodiments, and in particular, a combination with a lens and shutter arranged obliquely is effective.

As in this embodiment, the shutter is placed in front of the lens, and under the condition that the lens focal length substantially matches the display surface, the angle-converted light beam width is equivalent to the lens pitch, and the area hidden by BM is the light beam width. Since it becomes a part, it can be reproduced as light rays from the entire surface of the shutter opening. As a result, even if the viewing angle changes, the actual light beam position (opening) does not move, and there is an effect that a uniform image is obtained.

  The shutter can be installed in front of the lens. In particular, when the lens member material disturbs the polarization, if the display unit is a liquid crystal, the light from the display unit is polarized. Therefore, the polarization is disturbed by passing through the lens, and the on / off contrast of the shutter liquid crystal is reduced. However, providing a lens after the shutter is desirable because a high-contrast shutter can be obtained and time-division display without crosstalk can be obtained. FIG. 24 is a cross-sectional view for explaining various forms of the optical control unit of the stereoscopic display device according to the seventh embodiment. Although the numbers basically correspond to those in FIG. 23, a lens is provided after the upper polarizing plate 2329 of the shutter. It is desirable to make the shutter substrate 2328 thinner in order to reduce the distance gs2331 between the lens and the shutter.

(Eighth embodiment)
The stereoscopic display device according to the eighth embodiment is a liquid crystal display device whose display unit is in the OCB mode.

  FIG. 25 is a layout diagram in the display unit of the optical control unit of the stereoscopic display device according to the eighth embodiment, and FIG. 26 shows an outline of driving for accelerating the bend transition of the stereoscopic display device according to the eighth embodiment. Cross-sectional views are shown respectively.

  The circuit is the same as that of the second embodiment. Transistors 2007 and 2008 are connected to a common scanning line 2003, and signals of the signal lines 2004 and 2005 are written to the pixel electrodes 2001 and 2002. The storage capacitors 2009 and 2010 are provided, respectively, and the storage capacitor lines 2006 and 2006 'are arranged at the block boundaries of adjacent pixels.

  The end region 2030 of the pixel electrode 2001 has a gap between the upper and lower pixels on the signal lines 2004 and 2005, and the pattern is different on the signal lines 2004 and 2005. In the cross-sectional view of FIG. 26, there is a gap between the pixel electrode 2101 and the upper and lower adjacent pixels 2162 on the signal line 2105 so that the electric field between the signal line 2105 and the pixel electrode extends into the liquid crystal layer 2142. By applying the potential of the counter electrode 2141 and appropriately controlling the transverse electric field, the spray-bend transition of the liquid crystal is started. Here, the signal line 2105 is not connected to the pixel electrode 2101 via a transistor. When this bend transition is performed, a signal that can be independently controlled from the potential of the pixel electrode 2101 added by the potential of the signal line 2104. The feature of this embodiment is that the lateral electric field can be increased and appropriately controlled by the potential of the line 2105. In this initial driving, first, transition may be generated in the pixel electrode 2101 (2001), and then the potential of the signal line may be switched to perform transition on the pixel electrode side of 2002.

  The electrode pattern is desirable because it has a two-dimensional corner as shown in FIG. 25 so that the electric field can be concentrated and controlled three-dimensionally. This pattern is not limited to that shown in FIG. 25, but is characterized by using the signal line potential of an adjacent pixel. By using the signal line, a pattern for generating a transition can be formed in an end region having a finer pixel pitch, and a high aperture ratio in a high-definition pixel suitable for stereoscopic display can be obtained.

  In FIG. 25, the pixel boundaries 2030 and 2031 are provided on both of the two signal lines 2004 and 2005, but may be provided on only one of them. In that case, it is desirable to provide a boundary on a signal line different from a signal line for driving the pixel electrode (a signal line connected via a transistor). As a result, it is possible to apply the initial drive potential, which is the starting point of bend transition, with another signal line potential.

  In the pattern of FIG. 25, a region without a pixel electrode is slightly formed between the signal lines. However, if the light shielding portion 2032 is formed by superimposing a black matrix or a color filter layer on the counter substrate, a decrease in contrast can be prevented. .

Further, this embodiment may be combined with other embodiments, and in particular, a combination with a lens and shutter arranged obliquely is effective.

(Ninth embodiment)
The stereoscopic display device according to the ninth embodiment has a configuration in which drive blocks are divided.

FIG. 27 is a block diagram of a system including a drive system of a stereoscopic display device according to the ninth embodiment. A pixel area 2201 of the display portion is divided into two blocks 2203 and 2204. The optical control unit 2202 disposed on the front surface of the display unit includes a lens 2217 and a shutter electrode 2208 and is also divided into two blocks 2205 and 2206. The main component of the major axis of the lens is arranged along the scanning line as in the other embodiments. Although the blocks correspond to substantially the same area, they do not have to match completely, and the present invention takes into consideration that they do not match. A large number of pixels 2207 in the display portion are arranged uniformly regardless of the blocks 2203 and 2204, but are divided into two scanning line drive circuits 2213 and 2214, and are arranged on two sides in the horizontal direction in FIG. Each block can be driven simultaneously by circuits 2218 and 2219. That is, the screen rewriting of one field of the display unit can double the selection time of one scanning line, which is suitable for high-speed display rewriting with time-division driving. The shutter electrode drive circuit is also divided into two parts 2215 and 2216, which can be driven simultaneously. Each drive circuit is driven in cooperation with a shutter control circuit 2221, display unit drive control, and a shutter synchronization circuit 2220. A point having a frame memory or the like is omitted.

  When divided into such blocks, the scanning direction is set to 2209 and 2210. The driving is performed so that the starting point or the ending point of scanning is a block boundary. In FIG. 27, driving is performed so that the end point of scanning becomes a boundary. As indicated by 2211 and 2122, the shutter side is also scanned and driven so that the block boundary becomes the start point or end point in accordance with the scanning direction of the display unit. In this way, since the block boundary is driven at the same time from the left and right, even if the corresponding display area of the pixel passing through the lens shifts in time division display, it is rewritten almost at the same time. The timing can be adjusted accordingly, and a bright display without crosstalk can be obtained.

  The period and timing when the selected shutter is black is set to the slowest (longer black) display area corresponding to the lens near the block boundary. Therefore, it is preferable that the block driving is not visually recognized at all.

Note that the scanning direction may be reversed, and the direction may be changed for each field. Even when the lenses are obliquely arranged, the same block division and scanning direction can be set.

FIG. 3 is a partial perspective view of the stereoscopic display device according to the first embodiment. 1 is a block diagram of a system including a drive system of a stereoscopic display device according to a first embodiment. FIG. 3 is a schematic cross-sectional view illustrating a light beam reproduction method for stereoscopic display of the stereoscopic display device according to the first embodiment. FIG. 3 is a cross-sectional view showing the stereoscopic display device according to the first embodiment in more detail. Sectional drawing for demonstrating the drive mechanism of the three-dimensional display apparatus which concerns on 1st Embodiment. Sectional drawing for demonstrating the drive mechanism of the three-dimensional display apparatus which concerns on 1st Embodiment. Sectional drawing for demonstrating the drive mechanism of the three-dimensional display apparatus which concerns on 1st Embodiment. Sectional drawing for demonstrating the drive mechanism of the three-dimensional display apparatus which concerns on 1st Embodiment. FIG. 9 is a waveform diagram showing an optical response of the shutter of FIGS. 5 to 8 and an optical response of a display area. The perspective view which showed the optical response of the shutter demonstrated in FIGS. 5-8 from the diagonal direction, and the optical response of a display area. FIG. 11 is a cross-sectional view showing one cycle of a change in the position of the shutter opening. The circuit block diagram corresponding to the short-axis direction of the lenticular lens 112 of the display part 101 which concerns on 2nd Embodiment. Sectional drawing in A-A 'of FIG. FIG. 13 is a layout diagram in a display portion when the circuit shown in FIG. 12 is used. The circuit block diagram corresponding to the short-axis direction of the lenticular lens 112 of the display part 101 which concerns on 3rd Embodiment. FIG. 16 is a layout diagram in the display portion when the circuit shown in FIG. 15 is used. The partial perspective view of the three-dimensional display apparatus which concerns on 4th Embodiment. Projection arrangement diagram of pixel, lens and shutter of stereoscopic display device according to fourth embodiment The block diagram of the system containing the drive system of the three-dimensional display apparatus which concerns on 4th Embodiment. Block diagram of a system including a drive system of a stereoscopic display device according to a fifth embodiment The fragmentary perspective view for demonstrating the shutter element of the three-dimensional display apparatus which concerns on 6th Embodiment. The fragmentary perspective view for demonstrating another form of the shutter element of the three-dimensional display apparatus which concerns on 6th Embodiment. Sectional drawing for demonstrating the optical control part of the three-dimensional display apparatus which concerns on 7th Embodiment. Sectional drawing for demonstrating the other form of the optical control part of the three-dimensional display apparatus which concerns on 7th Embodiment. The layout figure in the display part of the optical control part of the three-dimensional display apparatus which concerns on 8th Embodiment. Sectional drawing which shows the outline | summary of the drive which accelerates the bend transition of the three-dimensional display apparatus which concerns on 8th Embodiment. The system block containing the drive system of the stereoscopic display device which concerns on 9th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Display part 102 Pixel 103 Scan direction 104 Scan line 105 Signal line 111 Optical control means 112 Lenticular lens 112a Incidence surface 112b Output surface 113 Shutter means 114 Shutter element 115 Black matrix 201 Display area 202 Scan line drive circuit 203 Signal line drive circuit 204 Display control circuit 211 Shutter electrode 212 Shutter drive circuit 213 Shutter control circuit 301 Opening 302 Light beam 303 Light beam 304 Display region 305 Substrate 325 Polarizing plate 327 Transparent substrate 328 Flat film 329 Shutter electrode 330 Liquid crystal layer 331 Counter electrode 332 Counter substrate 336 Polarization Plate 401 Display area 402 Display area 403 Display area 404 Opening area 405 Opening area 406 Opening area 411 Display area 413 Display area 415 Opening area 417 Display area 420 OFF Replacement area 504 Shutter stop period 601 Display area 602 Display area 603 Shutter 604 Shutter 605 Shutter 607 Display area 608 Display area

Claims (14)

A display unit having a plurality of pixels arranged in a matrix and having scanning lines arranged along columns and signal lines arranged along rows, and provided on the display unit, the light from the pixels is predetermined An optical control means for emitting light beams at the same angle,
A lens array in which the main component of the major axis of the lenticular lens element is arranged along the row of the display unit, and a plurality of the lens elements are arranged in parallel;
Shutter means for controlling the presence or absence of the passage of the lens transmitted light from the display unit by providing electrodes provided for each lens element along the major axis direction of the lens array, and opening and closing the electrodes collectively;
A display unit that drives line-sequentially for each column, scans in the pitch direction of the lenticular lens, and displays an image; and
A shutter drive unit that drives the shutter unit in synchronization with the image on the display unit being scanned and rewritten;
A stereoscopic display device characterized by comprising: A display unit having a plurality of pixels arranged in a matrix and having scanning lines arranged along columns and signal lines arranged along rows.
Optical control means provided on the display unit and emitting light beams by aligning light from the pixels at a predetermined angle, the major axis of the lenticular lens element being the main component in the column of the display unit And a lens array in which a plurality of the elements are arranged in parallel, and an electrode group in which the lens transmitted light from the display unit is provided for each lens along the lens long axis direction, and the electrode group is parallel to the pixel column. Shutter means that collectively opens and closes by electrodes electrically connected at a predetermined pitch in a block,
A display unit that drives line-sequentially for each column, scans in the pitch direction of the lenticular lens, and displays an image; and
A shutter electrode driving unit that drives to open and close the shutter in synchronization with the image on the display unit being scanned and rewritten;
A stereoscopic display device characterized by comprising: The display unit has a common scanning line in adjacent pixel columns, simultaneously selects adjacent pixels in the scanning line arrangement direction, has a plurality of signal lines for each pixel row, and simultaneously outputs signals to the adjacent pixels. The stereoscopic display device according to claim 1, wherein the stereoscopic display device is supplied. 4. The stereoscopic display device according to claim 3, wherein the pitch of the display unit pixels is 1: 4 or more in the signal line arrangement direction with respect to the scanning line arrangement direction. 5. The stereoscopic display device according to claim 3, wherein the display unit includes one common scanning line between a pair of adjacent pixel columns and an auxiliary capacitance line between the pair of pixel columns. . The stereoscopic display device according to claim 1, wherein the display unit is an active matrix liquid crystal display device. The optical control means includes a substrate facing the display unit, a lens array formed on the substrate, a flattening layer having a flattened lens surface, and a shutter electrode formed separately for each lens above the flattening layer. The stereoscopic display device according to claim 1, comprising: a counter substrate on which the counter electrode is formed; and a liquid crystal layer disposed between the counter electrode and the transparent electrode. 8. The stereoscopic display device according to claim 1, wherein the display unit is an OCB mode liquid crystal display device, and the shutter of the optical control unit includes an OCB mode liquid crystal. A plurality of signal lines for each pixel row, a pixel electrode of an adjacent pixel that has a common scanning line and is driven by the plurality of signal lines, and a boundary of the pixel electrode is provided on a separate signal line in each of the adjacent pixels; The stereoscopic display device according to claim 3, wherein the shape of the boundary on another signal line is different. A display unit having a plurality of pixels arranged in a matrix, a scanning line that selects and scans the pixels for each column, and a signal line that supplies an image signal for each row;
Optical control means provided on the display unit and emitting light beams by aligning light from the pixels at a predetermined angle, the major axis of the lenticular lens element being the main component in the column of the display unit A lens array in which a plurality of the lenses are arranged in parallel at a constant pitch, and an electrode group in which the lens transmitted light from the display unit is provided for each lens along the lens major axis direction. In a stereoscopic display device having shutter means that collectively opens and closes with electrodes that are electrically connected at a predetermined pitch within the parallel blocks in a row,
Corresponding to the image on the display unit, a lens with an integral multiple larger than 1 of the lens pitch is transmitted, and the light of the lens between them is closed so that it does not contribute to the display and one field is displayed. In response to the change in each field to another field, the shutters are driven so that the lenses are sequentially replaced and the original lens is returned in the n field,
The display unit is driven line-sequentially for each column, displays a one-field screen that reproduces light emitted from a predetermined lens, and displays a field screen that reproduces light emitted from another lens in the next field, The period from when the pixel column of the display unit, which is driven so as to return to the original lens in the n field, is displayed in a line sequential manner as a new field, until the optical response is made. A method for driving a stereoscopic display device, wherein the shutter of the corresponding lens is closed. The display unit is driven by being divided into two or more blocks with respect to the column. When pixels are selected and driven by a plurality of scanning lines simultaneously in each block, the scanning start point or end point of each block at the block boundary 11. The stereoscopic display device according to claim 10, wherein the three-dimensional display device is substantially simultaneous, and the opening / closing drive of the shutter is divided into the blocks of the display area, and the scanning direction of the opening / closing change is matched with the scanning direction of the display unit. Driving method. The shutter opening period of the lens to be selected in the vicinity of any display in the n field at the scanning block boundary of the display unit is set so that the corresponding display is the stable period, and the opening periods of the other shutters are also the period. The driving method of the stereoscopic display device according to claim 11, wherein A display unit having a plurality of pixels arranged in a matrix, a scanning line that selects and scans the pixels for each column, and a signal line that supplies an image signal for each row;
Optical control means provided on the display unit and emitting light beams by aligning light from the pixels at a predetermined angle, the major axis of the lenticular lens element being the main component in the column of the display unit A lens array in which a plurality of the lenses are arranged in parallel at a constant pitch, and an electrode group in which the lens transmitted light from the display unit is provided for each lens along the lens major axis direction. Shutter means for opening and closing at a predetermined pitch in parallel with the row;
A driving unit that drives the shutter electrode, and transmits a lens that is an integral multiple of a lens pitch larger than 1 corresponding to the image on the display unit, and the lens light therebetween is closed so as not to contribute to display. A shutter drive unit that displays one field, and sequentially switches the lens to return to the original lens in n fields in response to the image of the display unit changing to another field for each column.
The display unit is driven line-sequentially for each column, displays a one-field screen that reproduces light emitted from a predetermined lens, and displays a field screen that reproduces light emitted from another lens in the next field, a display unit driving unit for performing display to return to the original lens in n fields;
A stereoscopic display device having
For n lens groups selected in the n field, n is larger than 3, and the direction of the selected lens position in the i-th field, the selected lens position in the i + 1-th field, and the i + 1-th and i + 2-th lens positions. A driving method of a stereoscopic display device, wherein there is at least one i having the opposite direction. 14. The method for driving a stereoscopic display device according to claim 13, wherein the range of i is 1 to nxm and m is a natural number.

Images