JP2010175865A - Liquid crystal display element - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal panel capable of effectively controlling a viewing angle while preventing decrease in transmittance and increase in thickness. <P>SOLUTION: Subpixels for obstruction 22c, 22m, and 22y colored with complementary colors to subpixels for display 21r, 21g, and 21b are separately provided from the subpixels for display 21r, 21g, and 21b in correspondence with the subpixels for display 21r, 21g, and 21b colored with any of the primary colors constituting a white color. Light is caused to be transmissible in a direction except a frontal direction in the subpixels for obstruction 22c, 22m, and 22y. In the direction except a frontal direction, an image displayed in the subpixels for display 21r, 21g, and 21b, and an image displayed in the subpixels for obstruction 22c, 22m, and 22y are mixed, and the image can be brought close to being colorless while lowing the contrast. Thereby, the viewing angle can be effectively controlled while preventing a decrease in transmittance and an increase in thickness. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid crystal display element that controls a viewing angle.

  Conventionally, electronic display devices such as liquid crystal displays are not limited to the field of office automation equipment such as PCs, word processors, copiers, and facsimiles, but also cash dispensers, ATMs, game machines, television receivers, watches, mobile phones, It is used in a wide range of control devices and the like, and in particular, cash dispensers, ATMs, notebook PCs, and mobile phones are required to have a visibility control function for preventing peeping from the side for privacy protection.

  In order to provide such a visibility control function, a kind of optical filter called a viewing angle adjustment film with a built-in microlouver is attached to the front of the display screen in the above display device, and the image on the display screen appears bright from the front. There are things that are dark and invisible from the side. However, optical filters using this microlouver are made by laminating transparent films such as polyethylene terephthalate (PET) on both the front and back sides of a louvered film containing carbon black, so there is a lot of light transmission loss. In addition, there is a problem that the manufacturing cost is high.

  On the other hand, in a liquid crystal display in which a light source (backlight) is installed on the back side of a liquid crystal panel, which is a liquid crystal display element, a lens function is provided between the liquid crystal panel and the backlight to increase the surface brightness of the liquid crystal panel. By interposing a film or sheet made of a polymer material, that is, a so-called lens film (sometimes called a lens sheet, a prism sheet, a light control sheet, etc.), condensing, scattering, expanding, refraction, reflection, etc. of the lens film May improve the brightness of the display screen by improving the front brightness, improving the light distribution and uniformity for the upper and lower specific fields, or distributing the light to the left and right or the top and bottom. .

  However, in such a configuration, there is a problem that not only a lens film is required but also the thickness of the liquid crystal panel is increased by the thickness of the lens film.

  Therefore, a disturbing sub-pixel colored with white (W) is formed for each of the red (R), green (G) and blue (B) display sub-pixels constituting each pixel for display. In the sub-pixel for use, liquid crystal molecules are arranged in a direction inclined with respect to the polarization direction of each polarizing plate of the array substrate and the counter substrate, and in the sub-pixel for interference, liquid crystal molecules are arranged along the polarization direction of the polarizing plate, By driving the display subpixel and the obstruction subpixel in VA (Vertical Align) mode, respectively, the black luminance is increased with respect to the view through the obstruction subpixel, and the contrast of the look angle is lowered. A configuration is known in which the viewing angle is controlled by reducing the visibility (see, for example, Non-Patent Document 1).

SID (Society for Information Display) 07 DIGEST (p.756-759)

  However, in the above-described liquid crystal display element, it is possible to reduce the contrast with respect to the viewing from the direction other than the front direction, and to make the image visually recognized from the viewing direction to be whitened as a whole. However, since the color scheme itself of the image remains to some extent, there is a problem in that the visibility for viewing is not sufficiently lowered.

  The present invention has been made in view of these points, and an object thereof is to provide a liquid crystal display element capable of effective viewing angle control while preventing a decrease in transmittance and an increase in thickness.

  The present invention is a liquid crystal display element including a pair of substrates and a liquid crystal layer interposed between the substrates, and a plurality of pixels formed in a matrix, each pixel forming a white color A display subpixel that is colored by one of the primary colors and is capable of transmitting light at least in the front direction, and is provided separately from the display subpixel corresponding to the display subpixel. It is provided with an interference sub-pixel that is colored with a complementary color and can transmit light in a direction other than the front direction.

  Then, in correspondence with the display subpixel colored with one of the primary colors constituting white, separately from the display subpixel, a disturbing subpixel colored with a complementary color is provided for the display subpixel, This blocking sub-pixel can transmit light in a direction other than the front direction.

  According to the present invention, the image displayed on the display subpixel and the image displayed on the interfering subpixel are mixed in a direction other than the front direction to reduce the contrast and bring the image closer to an achromatic color. The viewing angle can be effectively controlled while preventing a decrease in transmittance and an increase in thickness.

It is a top view which shows the liquid crystal display element of one embodiment of this invention. It is a top view which shows each pixel of a liquid crystal display element same as the above. It is sectional drawing which shows the display subpixel of a liquid crystal display element same as the above. It is sectional drawing which shows the subpixel for disturbance of a liquid crystal display element same as the above. It is an equivalent circuit schematic of a liquid crystal display element same as the above. It is explanatory drawing which shows operation | movement of the liquid crystal molecule of a liquid crystal display element same as the above, (a1) shows the OFF state in the display sub-pixel same as the above, (a2) shows the ON state in the display sub-pixel same as the above, (b1 ) Shows the off state in the subpixel for blocking, and (b2) shows the on state in the subpixel for display. It is a graph which shows the viewing angle characteristic (contrast) in each display mode of a liquid crystal display element same as the above. It is a side view which shows a liquid crystal display element same as the above. (a) is an original image (contrast 2: 1), (b) is an image obtained by displaying the image of (a) in the narrow viewing angle display mode of the same liquid crystal display element as seen from the polar angle of 30 °, ( c) is an image obtained by viewing the image of (a) in the narrow viewing angle display mode of the conventional liquid crystal display element as viewed from the polar angle of 30 °.

  The configuration of an embodiment of the present invention will be described below with reference to FIGS.

  In FIG. 8, reference numeral 11 denotes a liquid crystal display as a liquid crystal display device. The liquid crystal display 11 includes a transmissive liquid crystal panel 12 as a liquid crystal display element and a planar light source device disposed on the back side of the liquid crystal panel 12. This is a color display provided with the backlight 13.

  As shown in FIG. 3 to FIG. 5, the liquid crystal panel 12 has an array substrate 15 as a substrate and a counter substrate 16 as a pair that is paired with the array substrate 15 arranged in a predetermined manner via a spacer (not shown). The liquid crystal layer 17 composed of the liquid crystal molecules LC is sandwiched between the substrates 15 and 16, and is attached to the substrates 15 and 16, respectively. Polarizers 18 and 19 are attached to each other. Further, in the liquid crystal panel 12, a plurality of pixels 20 are arranged in a matrix in a predetermined display area along the horizontal (H) direction and the vertical (V) direction, and each pixel 20 is shown in FIG. As described above, the display subpixels 21r, 21g, and 21b corresponding to primary colors constituting white, for example, red (R), green (G), and blue (B) (hereinafter, these display subpixels 21r, 21g, 21b) or the entire display subpixels 21r, 21g, and 21b may be paired with the display subpixels 21r, 21g, and 21b. That is, the obstruction subpixels 22c, 22m, and 22y corresponding to cyan (C), magenta (M), and yellow (Y) (hereinafter, at least one of these obstruction subpixels 22c, 22m, and 22y, or the whole is simply used. It may be referred to as an obstruction subpixel 22).

  In the liquid crystal panel 12, as shown in FIGS. 1 to 4, the display subpixel 21 is driven in a horizontal electric field drive mode, for example, an IPS (In Plain Switching) mode, and the disturbing subpixel 22 is driven in a vertical electric field drive. Mode, for example, a wide viewing angle display mode that is driven by the homogeneous orientation mode and uses only the display subpixel 21, and an image to be displayed on the display subpixel 21 using the display subpixel 21 and the disturbing subpixel 22 The obstruction sub-pixel 22 can be switched to a narrow viewing angle display mode in which the viewing angle is narrowed by obstructing the direction other than the front direction. In the present embodiment, the display subpixel 21 and the disturbing subpixel 22 are formed to have substantially the same size (area ratio 1: 1), but the disturbing subpixel 22 is the display subpixel. If it is too large relative to 21, the transmittance will be reduced, and if the interfering subpixel 22 is too small relative to the display subpixel 21, the viewing angle control effect in the narrow viewing angle display mode will be reduced. The area ratio between 21 and the blocking sub-pixel 22 is preferably about 1: 1 to 3: 1 depending on the characteristics required for the liquid crystal panel 12.

  As shown in FIGS. 3 to 5, the array substrate 15 includes an insulating and translucent transparent substrate 24, and a plurality of scanning lines 25 and a plurality of signal lines formed on the transparent substrate 24 in a grid pattern. 26, a plurality of common wirings 27 formed in parallel to the scanning line 25, a thin film transistor (TFT) 28 as a switching element connected to the intersection of the scanning line 25 and the signal line 26, the thin film transistor 28, etc. An insulating film 29 such as a silicon oxide film or a silicon nitride film formed on the transparent substrate 24 and a pixel electrode 30 (FIG. 2) formed on the insulating film 29 and driven by each thin film transistor 28; A common electrode 31 formed on the insulating film 29 and connected to the common wiring 27; and an alignment film 32 formed on the insulating film 29 so as to cover the electrodes 30, 31 and the like.

  The transparent substrate 24 is, for example, a glass substrate formed in a square shape in plan view.

  The scanning line 25, the signal line 26, and the common wiring 27 are formed in a substantially linear shape by a conductive member such as aluminum or copper. The scanning line 25 and the common wiring 27 are arranged in the horizontal (H) direction, the signal line. 26 is along the vertical (V) direction. The scanning line 25 is electrically connected to a gate driving circuit, that is, the gate driver 34, the signal line 26 is electrically connected to a source driving circuit, that is, the source driver 35, and the common wiring 27 is the same as the common wiring 27. It is electrically connected to a common wiring power source (not shown) for setting the potential. Further, the common lines 27 are formed corresponding to the scanning lines 25 corresponding to the display sub-pixels 21, respectively. In other words, the common wiring 27 is arranged every other scanning line 251 in the vertical (V) direction. That is, the number of common wiring lines 27 is half that of the scanning lines 25.

  The gate driver 34, the source driver 35, and the common wiring power supply unit are each connected to a controller 38 as control means. The gate driver 34 sequentially drives the plurality of scanning lines 25 so that the plurality of thin film transistors 28 are conducted in units of rows, and the source driver 35 operates by driving the scanning lines 25 corresponding to the thin film transistors 28 in each row. The signal potential is output to each of the plurality of signal lines 26 during the conducting period.

  The controller 38 controls the operation timing of the drivers 34 and 35 with respect to the video signal S input from the outside. One line from the control signal and video signal for sequentially driving the plurality of scanning lines 25. Pixel data obtained in units of 20 pixels per minute, a control signal for designating output polarities and assigning these pixel data to a plurality of signal lines 26, and a predetermined number of steps used for converting image data into signal potentials Generates a regulated reference voltage.

  In the thin film transistor 28, a gate electrode as a control terminal is formed integrally with the scanning line 25, a source electrode is formed integrally with the signal line 26, and a drain electrode is electrically connected to each pixel electrode 30. Yes. These thin film transistors 28 are controlled in switching by applying a signal from the gate driver 34 to the gate electrode through the scanning line 25, and correspond to the signal input from the source driver 35 through the signal line 26. Each pixel electrode 30 can be driven independently.

  As shown in FIG. 2, the pixel electrode 30 and the common electrode 31 are made of a transparent and conductive material such as ITO, for example, a general film forming process such as sputtering, and a general film such as etching. Each is formed into a thin film by repeating the patterning step.

  The pixel electrode 30 includes a pixel electrode 30a corresponding to the display subpixel 21 and a pixel electrode 30b corresponding to the disturbing subpixel 22. The pixel electrode 30 (pixel electrodes 30a and 30b) is electrically connected to the drain electrode of the thin film transistor 28 through a contact hole provided in the insulating film 29 (FIG. 3).

  Here, the pixel electrode 30 a (FIG. 3) is formed in a long comb-teeth shape along the vertical (V) direction, and is configured to generate a lateral electric field between the pixel electrode 30 a and the common electrode 31.

  Further, the pixel electrode 30b is formed in a substantially square shape between the adjacent scanning lines 25 and 25 and between the signal lines 26 and 26.

  In this embodiment, the pixel electrode 30a (display subpixel 21) and the pixel electrode 30b (interference subpixel 22) are formed to be alternately adjacent in the vertical (V) direction. It may be formed adjacent to the (H) direction.

  The common electrode 31 is formed in a comb-like shape inserted between the comb-like pixel electrodes 30a, and is electrically connected to the common wiring 27 through a contact hole provided in the insulating film 29. Yes.

  On the other hand, as shown in FIGS. 3 and 4, the counter substrate 16 includes a transparent substrate 41 having insulating properties and translucency, a color filter layer 42 formed on the transparent substrate 41, and the color filter layer 42. It has a counter electrode 43 formed thereon and an alignment film 44 formed on the counter electrode 43.

  Similar to the transparent substrate 24, the transparent substrate 41 is, for example, a glass substrate formed in a square shape in plan view.

  The color filter layer 42 is formed of, for example, synthetic resin, and is colored corresponding to the colors of the display sub-pixels 21r, 21g, and 21b (FIG. 1), that is, red (R), green (G), and blue (B). Colored portions 42c, 42m, 42c, 42m, 42b, 42b, and obstructing subpixels 22c, 22m, 22y (FIG. 1) corresponding to the respective colors, ie, cyan (C), magenta (M), and yellow (Y). 42y, and these colored portions 42r, 42g, 42b, 42c, 42m, 42y cover the display side of each of the sub-pixels 21r, 21g, 21b, 22c, 22m, 22y (FIG. 1) in the vertical (V) direction. Are formed in a longitudinal shape along the horizontal (H) direction.

  The counter electrode 43 is formed into a thin film only at a position facing the subpixels 22c, 22m, and 22y (FIG. 1) for blocking with a transparent and conductive material such as ITO. This is a common electrode corresponding to the sub-pixels 22c, 22m, and 22y for use. Accordingly, the counter electrodes 43 are formed in a strip shape along the horizontal (H) direction and are separated from each other along the vertical (V) direction.

  The liquid crystal layer 17 is made of a liquid crystal material having a positive dielectric anisotropy, and the pretilt angle of the liquid crystal molecules LC is approximately 0 ° and the major axis direction is unidirectional due to the rubbing direction of the alignment films 32 and 44. It is in a homogeneous alignment state.

  As shown in FIG. 6, the polarizing plates 18 and 19 have a so-called crossed Nicol arrangement in which the absorption axes 18a and 19a cross each other along the diagonal direction in the front view of the liquid crystal panel 12 (FIG. 3). The longitudinal direction (director) of the liquid crystal molecules LC is along the absorption axis 19 a of the polarizing plate 19. Therefore, as shown in FIGS. 3 and 4, in the state where no voltage is applied between the electrodes 30a and 31 and between the electrodes 30b and 43, the incident light does not change its polarization even if it passes through the liquid crystal layer 17. First, as shown in FIGS. 6 (a1) and 6 (b1), the light is absorbed by the polarizing plate 19 on the emission side, and each of the display subpixel 21 and the disturbing subpixel 22 is displayed in black. Further, in the display sub-pixel 21, when a voltage is applied between the electrodes 30a and 31 shown in FIG. 3 and a lateral electric field is generated, the liquid crystal molecules LC are rotated in the plane as shown in FIG. 6 (a2). When the longitudinal direction deviates from the absorption axis 19a, the transmittance increases and white display is performed. Furthermore, in the state where a voltage is applied between the electrodes 30b and 43 shown in FIG. 4 and a vertical electric field is generated in the disturbing sub-pixel 22, the liquid crystal molecules LC rise as shown in FIG. Although the display is black for the polar angle of 0 °, the display is white for the left and right directions (polar angles other than 0 °) except for the front direction. As a result, the liquid crystal panel 12 has viewing angle characteristics (contrast) as shown in FIG.

  The backlight 13 has a light guide plate (not shown) for converting white light from a cold cathode tube or a light source such as an LED into planar white light, and is opposed to the array substrate 15 side of the liquid crystal panel 12. Has been placed.

  Next, the operation of the above embodiment will be described.

(Wide viewing angle display mode)
The gate driver 34 sequentially selects the scanning lines 25 corresponding to the display sub-pixels 21 in one vertical scanning period according to the control signal from the controller 38. In other words, the gate driver 34 sequentially selects every other scanning line 25, and The scanning line potential of the selected scanning line 25 is set so that the thin film transistor 28 is turned on only for one horizontal scanning period.

  Further, the source driver 35 converts pixel data supplied to the pixels 20 for one row every horizontal scanning period into signal potentials with reference to a predetermined number of gradation reference voltages, and outputs a plurality of signals. Output to line 26 in parallel.

  Therefore, the signal potential supplied from the source driver 35 is applied to the pixel electrode 30a of each display subpixel 21 via the thin film transistor 28 of each row conducted by the gate driver 34, and corresponds to each display subpixel 21. The liquid crystal molecules LC of the liquid crystal layer 17 are rotated by an angle corresponding to the signal potential, the longitudinal direction is deviated from the absorption axis 19a (FIG. 6 (a2)), and the transmittance increases corresponding to this deviation angle.

  As a result, the display sub-pixel 21 displays an image with a wide viewing angle.

(Narrow viewing angle display mode)
The gate driver 34 sequentially selects the scanning lines 25 in one vertical scanning period in accordance with a control signal from the controller 38, and the scanning line potential of the selected scanning line 25 is set so that the thin film transistors 28 in each row are made conductive only for one horizontal scanning period. Set.

  Further, the source driver 35 converts pixel data supplied to the pixels 20 for one row every horizontal scanning period into signal potentials with reference to a predetermined number of gradation reference voltages, and outputs a plurality of signals. Output to line 26 in parallel.

  Therefore, the signal potential supplied from the source driver 35 via the thin film transistors 28 of each row conducted by the gate driver 34 is applied to the pixel electrode 30a of each display subpixel 21 and the pixel electrode 30b of each disturbing subpixel 22, respectively. As shown in FIG. 6 (a2), the liquid crystal molecules LC of the liquid crystal layer 17 (FIG. 3) corresponding to the display sub-pixels 21 are turned at an angle corresponding to the signal potential, and the longitudinal direction is from the absorption axis 19a. As shown in FIG. 6 (b2), the liquid crystal layer 17 (FIG. 4) corresponding to the disturbing sub-pixel 21 paired with the display sub-pixel 21 is formed. ) Rises at an angle corresponding to the signal potential, and the transmittance increases corresponding to the rising angle.

  As a result, an image is displayed by the display subpixel 21 for the front direction, and an image is displayed by the display subpixel 21 for the direction other than the front direction, and is the same as the display subpixel 21. By displaying the image data and the image colored by the complementary color by the interference subpixel 22, the image displayed by the display subpixel 21 and the image displayed by the interference subpixel 22 are mixed, The contrast of the image to be displayed decreases, and this image becomes almost achromatic, that is, almost a white image. That is, it is difficult to visually recognize an image from a direction other than the front direction, and the viewing angle of the liquid crystal panel 12 is substantially controlled to be a narrow viewing angle.

  As described above, in the above-described embodiment, the display subpixels 21r, 21g, and 21b corresponding to the display subpixels 21r, 21g, and 21b colored with primary colors (red, green, and blue) that form white are used. Separately, the subpixels 22c, 22m, and 22y for interference colored with complementary colors (cyan, magenta, and yellow) are provided for the subpixels for display 21r, 21g, and 21b. Thus, light can be transmitted in a direction other than the front direction.

  For this reason, in the narrow viewing angle display mode, the image displayed on the display subpixels 21r, 21g, and 21b and the image displayed on the interference subpixels 22c, 22m, and 22y are mixed in a direction other than the front direction. Thus, the image can be brought closer to an achromatic color (substantially white display) while reducing the contrast. Specifically, as shown in FIG. 7, in the narrow viewing angle display mode, the contrast at the polar angle of 30 ° is reduced to 2: 1 and is not sufficiently visible, while the front direction, that is, the polar angle. The contrast at 0 ° is maintained high, and visibility from the front direction is ensured.

  Therefore, when the observer swings the viewing angle or when a third party tries to look into the display, the display that can be viewed from the front direction becomes difficult to view.

  Since the viewing angle is controlled only by the orientation control of the liquid crystal molecules LC in this way, the transmittance is reduced and the thickness is reduced as in the case of using an optical filter with an external louver structure or a directional backlight. While preventing the increase, the viewing angle can be effectively controlled, and the third party can be effectively prevented from peeping.

  For example, in the conventional case where the subpixel for interference is colored with white (W), in the narrow viewing angle display mode, when the observer swings the viewing angle or when a third party tries to look into The display that is visually recognized is an image that is whitened as a whole with respect to the image displayed in the front direction, but is an image in which the color scheme of the image displayed in the front direction remains to some extent, and is in a state that is not sufficiently visible. On the other hand, in the present embodiment, the display visually recognized from the direction other than the front direction approaches an achromatic color and becomes more difficult to visually recognize.

  Specifically, for example, as shown in FIG. 9, the shaded portion P of the predetermined original image shown in (a) is an image displayed in the narrow viewing angle display mode of the liquid crystal display 11 of the present embodiment. In the image viewed from the 30 ° angle (FIG. 9B), it is a portion P1 in which the color is lost, whereas the entire image is almost white and the visibility is sufficiently lowered. In addition, in the image displayed in the narrow viewing angle display mode of the conventional liquid crystal display as viewed from the polar angle of 30 ° (FIG. 9 (c)), the portion P2 in which the color remains remains, and visibility is improved. Is not sufficient.

  Further, the liquid crystal layer 17 has a homogeneous alignment along the absorption axis 19a, the display subpixel 21 is driven in a transverse electric field drive mode such as an IPS mode, and the disturbing subpixel 22 is a homogeneous alignment mode. By driving in the vertical electric field driving mode, it is not necessary to make the alignment direction of the liquid crystal molecules LC of the liquid crystal layer 17 different between the display subpixel 21 and the disturbing subpixel 22, so that the alignment films 32 and 44 are rubbed. It is possible to improve manufacturability and the like, and the display sub-pixel 21 can display an image with a wide viewing angle.

  Further, by enabling the controller 38 to switch between the wide viewing angle display mode and the narrow viewing angle display mode, when the narrow viewing angle display mode is not necessary, the display driven in the horizontal electric field drive mode such as the IPS mode. Since the sub-pixel 21 can display an image with a normal wide viewing angle, the liquid crystal display 11 can be applied to various devices.

  Since the display subpixel 21 and the disturbing subpixel 22 that make a pair are adjacent to each other in the vertical (V) direction, the width dimension of the subpixels 21 and 22 can be made relatively large. The pixel electrodes 30a and 30b constituting the parts 21 and 22 are not unnecessarily small, and the manufacturability is unlikely to deteriorate.

  In the above embodiment, the lateral electric field drive mode for driving the display subpixel 21 may be, for example, the FFS mode.

  Further, although the longitudinal direction (director) of the liquid crystal molecules LC is set along the absorption axis 19a of the polarizing plate 19, it can be controlled similarly along the transmission axis of the polarizing plate 19.

  Further, each of the sub-pixels 21 and 22 may be driven in the VA mode. In this case, the light distribution can be controlled in the same manner as in the above embodiment by appropriately changing the alignment direction of the liquid crystal molecules LC between the display subpixel 21 and the disturbing subpixel 22.

  Then, the sub-pixels 21 and 22 forming a pair may be arranged in the vertical (V) direction or may be arranged adjacent to each other in the horizontal (H) direction.

  Further, the wide viewing angle display mode and the narrow viewing angle display mode may not be switched by the controller 38, and the liquid crystal panel 12 having only the narrow viewing angle display mode may be used.

12 Liquid crystal panels as liquid crystal display elements
15 Array substrate as substrate
16 Counter substrate as substrate
17 Liquid crystal layer
20 pixels
21b, 21g, 21r Display sub-pixel
22c, 22m, 22y Sub pixel for obstruction
38 Controller as control means

Claims (3)

A liquid crystal display element comprising a pair of substrates and a liquid crystal layer interposed between the substrates, wherein a plurality of pixels are formed in a matrix,
Each pixel is
A display subpixel that is colored by any of the primary colors constituting white and is capable of transmitting light in at least the front direction;
Corresponding to the display subpixel, the display subpixel is provided separately from the display subpixel. The display subpixel is colored with a complementary color and is capable of transmitting light in a direction other than the front direction. A liquid crystal display element comprising: The liquid crystal layer is homogeneously oriented,
The display subpixel is driven in a horizontal electric field drive mode,
The liquid crystal display element according to claim 1, wherein the interfering subpixel is driven in a vertical electric field driving mode. The liquid crystal display element according to claim 1, further comprising a control unit that switches between driving and non-driving of the interfering sub-pixel.