JP2006215423A - Electrooptical device and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent alignment of a liquid crystal from being disordered between mutually adjacent pixel electrodes, in a liquid crystal display device of a perpendicular alignment system or the like. <P>SOLUTION: A scanning line having a bent part, a TFD (thin film diode) element, and a pixel electrode are formed on a side of an element substrate. The scanning direction S1 of the scanning line is set at the downstream side of the element substrate. For example, when a selection voltage is applied to the bent part of a row Ym-1 and when a non-selection voltage is applied to the bent part of a row Ym, the electric fields of both the bent parts of the rows Ym-1 and Ym are applied near the edge of the pixel electrode corresponding to the row Ym at the side of the bent part of the row Ym-1. Although the alignment of the liquid crystal is disordered in the vicinity thereof, the selection voltage is applied to the bent part of the row Ym immediately after that, and the data corresponding to the selection voltage are written on the pixel electrode corresponding to the row Ym. Because the disorder in the alignment of the liquid crystal disappears, the observer cannot visually recognize the generation of the disorder in the alignment of the liquid crystal, and the deterioration in the display quality is prevented. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electro-optical device suitable for displaying various information.

  2. Description of the Related Art Conventionally, as an example of an electro-optical device, an active matrix driving type liquid crystal device in which liquid crystal is sealed between a pair of substrates facing each other is known. In such a liquid crystal device, a data line, a two-terminal element such as a TFD (Thin Film Diode) element electrically connected to the data line, and a two-terminal element are electrically connected to the element substrate side of the pair of substrates. Connected pixel electrodes are provided, respectively, and stripe-like scanning lines are provided on the counter substrate side. In the element substrate, the data line is provided so as to extend in a direction substantially orthogonal to the direction in which the scanning line extends, and the two-terminal element is provided corresponding to the position where the data line and the scanning line intersect. It has been. The pixel electrodes are arranged in a matrix in the row and column directions, and the pixel electrode group corresponding to each row faces each corresponding scanning line. For example, Patent Document 1 describes an example of a liquid crystal display device having such a configuration.

  Further, in such a liquid crystal device, as a liquid crystal driving method, for example, a line sequential driving method in which each scanning line is sequentially exclusively selected in one vertical scanning period by a driver IC or the like is adopted, which further reduces display quality. In order to prevent this, a scanning line inversion driving method in which the polarity of the voltage is inverted for each scanning line is often employed. With such a liquid crystal driving method, in such a liquid crystal device, the current value of the two-terminal element changes based on the potential difference applied to the scanning line and the data line, and the liquid crystal is charged / discharged. Are switched to the non-display state or the intermediate display state. Thereby, the display operation of the liquid crystal is controlled.

  By the way, in such a liquid crystal device, the width of each scanning line is usually formed larger than the length corresponding to the longitudinal direction of each pixel electrode. That is, the vicinity of both ends of each scanning line is formed up to a corresponding position between adjacent pixel electrodes. For this reason, when the above-described liquid crystal driving method is employed in such a liquid crystal device, the following problems may occur.

  That is, in such a liquid crystal device, when attention is paid to scanning lines adjacent to each other, a selection voltage corresponding to positive polarity (or negative polarity) is applied to one scanning line selected at a certain point in time, and A non-selection voltage corresponding to negative polarity (or positive polarity) is applied to the other scanning lines selected. For this reason, the electric field of both the scanning lines is applied between the pixel electrode corresponding to the one scanning line and the pixel electrode corresponding to the other scanning line. As a result, liquid crystal orientation is disturbed in the vicinity of adjacent pixel electrodes, which may reduce display quality.

  As this type of liquid crystal device, there is also known a liquid crystal device in which scanning electrodes (scanning lines) are provided on the element substrate side instead of data lines, and data lines are provided on the counter substrate side instead of scanning electrodes (scanning lines). (For example, see Patent Documents 2 and 3). In the liquid crystal devices disclosed in these patent documents, the scanning electrode (scanning line) is electrically connected to the pixel electrode via the two-terminal element on the element substrate side.

  Furthermore, there is also known a vertical alignment type liquid crystal device in which the viewing angle dependency is improved by controlling the alignment of liquid crystal molecules so as to widen the viewing angle (see, for example, Patent Document 4). In such a vertical alignment type liquid crystal device, a liquid crystal having negative dielectric anisotropy is used, and in the state where no voltage is applied between the element substrate and the counter substrate, the liquid crystal molecules are Oriented in a substantially vertical direction. Here, a pixel electrode having a so-called CPA (Continuous Pinwheel Alignment) structure, that is, a pixel electrode including a plurality of substantially circular or polygonal sub-pixel electrodes is formed on the element substrate. In addition, a slit or a convex portion (projection) may be formed on the counter substrate at a position facing substantially the center of each subpixel electrode. When a voltage is applied between the element substrate and the counter substrate, an electric field corresponding to the voltage is formed in the liquid crystal layer between the substrates, but the subpixel electrode is formed in a circular shape or a polygonal shape, and Since the opposing electrode on the opposite substrate side has slits, protrusions, and the like, the alignment state of the liquid crystal molecules is controlled radially around the approximate center of the subpixel electrode. Thereby, the viewing angle dependency is suppressed, and a wide viewing angle can be achieved.

JP 2002-328627 A JP 2001-59974 A JP-A-5-40280 JP 2004-29241 A

  The present invention has been made in view of the above points, and can suppress the occurrence of liquid crystal alignment disturbance in the vicinity of adjacent pixel electrodes, thereby preventing display quality from being deteriorated. It is an object to provide an electro-optical device and an electronic apparatus.

  In one aspect of the present invention, an electro-optical device includes a plurality of pixel electrodes arranged in a matrix in rows and columns, a two-terminal element electrically connected to the pixel electrode, and a phase in the column direction. An element having a plurality of scanning lines extending in a row direction between the adjacent pixel electrodes and electrically connected to the two-terminal elements, and a scanning line driving circuit for sequentially scanning the plurality of scanning lines. Each of the scanning lines includes the two-terminal element and the pixel electrode electrically connected to each of the scanning lines, and the scanning line driving circuit includes the substrate and a counter substrate having data lines. It is located downstream in the scanning direction for sequentially scanning a plurality of scanning lines.

  The electro-optical device includes an element substrate and a counter substrate. The element substrate is arranged in a matrix in the row and column directions, and includes a plurality of pixel electrodes made of a transparent conductive material such as ITO, a two-terminal element such as a TFD element electrically connected to the pixel electrodes, and the column direction. A plurality of scanning lines made of chromium or the like extending in the row direction between pixel electrodes adjacent to each other and electrically connected to a two-terminal element, and a scanning line driving circuit for sequentially scanning the plurality of scanning lines. Have. On the other hand, the counter substrate has data lines made of a transparent conductive material such as ITO. In the electro-optical device having such a configuration, the current value of the two-terminal element changes based on the potential difference applied to the scanning line and the data line, and the alignment state of the liquid crystal is controlled.

  In a preferred example, the scanning direction is a direction of the pixel electrode adjacent to the one scanning line and not electrically connected to one scanning line of the plurality of scanning lines. Can do. In addition, the scanning line driving circuit sequentially and exclusively selects one of the plurality of scanning lines in the scanning direction (line sequential driving method), and the selected scanning line is selected. A scanning signal corresponding to a potential whose polarity is inverted from that of the scanning line selected immediately before the scanning line is supplied (scanning line inversion driving method). In addition, the data line driving circuit outputs a data signal to the data line, and the scanning signal is supplied with a potential having a larger absolute value than the data signal from the scanning line driving circuit.

  For this reason, in this electro-optical device, for example, when paying attention to adjacent Ym-1 rows (m is a natural number of 2 or more, the same applies hereinafter), Ym row scanning lines, etc., the Ym-1 row scanning lines are selected. When a voltage is applied and a non-selection voltage having a polarity different from that of the Ym-1 row scanning line is applied to the Ym row scanning line, the pixel electrode corresponding to the Ym row on the Ym-1 row scanning line side is applied. Near the edge, both the electric field generated by the Ym scanning line and the electric field generated by the Ym-1 scanning line are applied. As described above, in this electro-optical device, the scanning line extends in the row direction between the pixel electrodes adjacent to each other in the column direction, so that the influence of the electric field generated by the certain scanning line is adjacent to the scanning line. However, it can be limited only to pixel electrodes that are not electrically connected. Thereby, the alignment state of the liquid crystal can be stabilized to some extent in the vicinity.

  In the electro-optical device, each scanning line is scanned in a scanning direction in which the scanning line driving circuit sequentially scans the plurality of scanning lines from a two-terminal element and a pixel electrode electrically connected to each scanning line. It is located on the downstream side. Therefore, even if the alignment disorder of the liquid crystal occurs near the edge of the pixel electrode corresponding to the Ym row described above, immediately after that, a selection voltage is instantaneously applied to the scanning line of the next Ym row, Data corresponding to the selection voltage is written to the pixel electrode corresponding to the Ym row. As a result, the alignment disorder of the liquid crystal can be eliminated instantaneously. In addition, in this electro-optical device, the period in which all scanning lines are selected, that is, one frame period is extremely short. For this reason, even if the alignment disorder of the liquid crystal occurs near the edge of the pixel electrode as described above, the observer cannot visually recognize the occurrence of the alignment disorder of the liquid crystal. Therefore, it is possible to prevent the display quality from deteriorating.

  In one aspect of the electro-optical device, the element substrate includes a wiring and another driving circuit electrically connected to the wiring, and the element substrate and the counter substrate include conductive particles. The one end of the data line is located in the seal member and is electrically connected to the wiring via the conductive particles.

  In this aspect, the element substrate has a wiring (leading wiring) and another driving circuit (data line driving circuit) electrically connected to the wiring. The element substrate and the counter substrate are bonded to each other by a sealing member having conductive particles. One end of the data line is located in the seal member, and is electrically connected to the wiring (leading wiring) through the conductive particles. That is, the data line and the wiring (leading wiring) are vertically connected via the conductive particles in the seal member. Accordingly, another drive circuit (data line drive circuit) can output a data signal to the data line via the wiring (leading wiring) and the conductive particles.

  In another aspect of the above electro-optical device, in the element substrate, an insulating layer having a plurality of contact holes is formed between the scanning lines and the two-terminal elements and the pixel electrode, and the pixel electrode Is electrically connected to the two-terminal element through the contact hole.

  In this aspect, in the element substrate, an insulating layer (overlayer) having a plurality of contact holes (openings) is formed between the scanning line and the two-terminal element and the pixel electrode. The pixel electrode is electrically connected to the two-terminal element through a corresponding contact hole. That is, the element substrate of this aspect has a structure in which the scanning line, the two-terminal element, and the pixel electrode are separated by the insulating layer (overlayer), that is, a so-called overlayer structure.

  Thus, in this aspect, the scanning lines that are driven with a large potential difference between the adjacent scanning lines are covered with the insulating layer. Thus, for example, when focusing on adjacent Ym-1 rows (m is a natural number of 2 or more, the same applies hereinafter) and Ym row scanning lines, the selection voltage is applied to the Ym-1 row scanning lines. When a non-selection voltage having a polarity different from that of the Ym-1 row scanning line is applied to the row scanning line, the pixel electrode corresponding to the Ym row is hardly affected by the electric field generated by the Ym-1 row scanning line. Become. Therefore, the liquid crystal alignment is less likely to occur near the edge of the pixel electrode corresponding to the Ym row.

  In another aspect of the electro-optical device, the liquid crystal is formed of a liquid crystal material having negative dielectric anisotropy, and the pixel electrode has a plurality of unit electrode portions that are polygonal or circular. ing.

  In this embodiment, the liquid crystal is formed of a liquid crystal material having negative dielectric anisotropy. As a result, in an initial alignment state in which no potential is applied between the element substrate and the counter substrate, a so-called vertical alignment type electro-optical device in which the liquid crystal is aligned substantially perpendicular to both substrates can be configured. . In particular, the pixel electrode has a plurality of unit electrode portions that are polygonal or circular.

  In addition, an electronic apparatus including the electro-optical device as a display unit can be configured.

  The best mode for carrying out the present invention will be described below with reference to the drawings. In the following embodiments, the present invention is applied to a liquid crystal display device as an example of an electro-optical device. In various embodiments, as a basic configuration, a scanning line, a TFD element, and a pixel electrode are formed on the element substrate side, and a data line is formed on the color filter substrate side that is a counter substrate. In particular, in various embodiments, the scanning line portion disposed in the effective display area is disposed between the pixel electrodes adjacent to each other in the vertical direction, and the scanning line portion is driven by the TFD element that is driven by itself. The pixel electrode is disposed downstream of the scanning line in the scanning direction. Thereby, the occurrence of alignment disorder of the liquid crystal is suppressed in the vicinity between adjacent pixel electrodes, and the display quality is prevented from deteriorating.

[First embodiment]
In the first embodiment, the present invention is applied to a vertical alignment type liquid crystal display device capable of widening the viewing angle.

(Configuration of liquid crystal display device)
First, the configuration of the liquid crystal display device according to the first embodiment of the present invention will be described. FIG. 1 is a plan view schematically showing a schematic configuration of a liquid crystal display device 100 according to the first embodiment of the present invention. In FIG. 1, the configuration of electrodes and wirings of the liquid crystal display device 100 is mainly shown as a plan view. Here, the liquid crystal display device 100 is an active matrix driving method using a TFD element, and is a transmissive liquid crystal display device. The liquid crystal display device 100 is a vertical alignment type liquid crystal display device. Further, the liquid crystal display device 100 is a liquid crystal display device to which a line sequential driving method and a scanning line inversion driving method are applied. FIG. 2 is a schematic cross-sectional view along the cutting line AA ′ in the liquid crystal display device 100 of FIG.

  First, the cross-sectional configuration of the liquid crystal display device 100 taken along the cutting line A-A ′ will be described with reference to FIG.

  In FIG. 2, the liquid crystal display device 100 includes an element substrate 91 and a color filter substrate 92 disposed so as to face the element substrate 91 via a frame-shaped seal member 3, and has a negative dielectric constant therein. A liquid crystal layer 4 is formed by enclosing an anisotropic liquid crystal. The frame-shaped seal member 3 is mixed with a conductive member 7 such as a plurality of metal particles.

  On the inner surface of the lower substrate 1, bent portions 31b (see FIG. 3) of the scanning lines 31 made of chromium or the like are formed at regular intervals. On the inner surface of the lower substrate 1, pixel electrodes 10 are formed for each subpixel region SG. Further, a TFD element 21 is formed on the inner surface of the lower substrate 1 and between adjacent pixel electrodes 10. The bent part 31 b of the scanning line 31 is electrically connected to the pixel electrode 10 via the corresponding TFD element 21.

  Further, on the lower substrate 1, a wiring (leading wiring) 40 electrically connected to the data line 32 is formed in a region protruding to the right side of the drawing from the upper substrate 2, that is, the protruding region 36. One end of the wiring 40 extends into the seal member 3 and is electrically connected to the conducting member 7. Further, external connection terminals 35 that are electrically connected to a flexible printed circuit board (not shown) are formed in the overhang region 36 on the lower substrate 1 with an appropriate distance from the wiring 40. Further, an X driver IC 34 is mounted on the overhang region 36 on the lower substrate 1 via an ACF (Anisotropic Conductive Film) 37. 2, the Y driver IC 33 is also mounted on the overhang region 36 on the lower substrate 1 via the ACF 37. The input terminal 42 of the X driver IC 34 is electrically connected to one end side of the external connection terminal 35 via the ACF 37, and the output terminal 41 of the X driver IC 34 is electrically connected to one end side of the wiring 40 via the ACF 37. It is connected to the. A vertical alignment film (not shown) made of polyimide or the like is formed on the inner surfaces of the lower substrate 1, the scanning line 31, the TFD element 21, the pixel electrode 10, and the like.

  On the other hand, on the inner surface of the upper substrate 2, colored layers 6R, 6G, and 6B made of one of the three colors R, G, and B are formed for each sub-pixel region SG. A color filter is constituted by the colored layers 6R, 6G, and 6B. A pixel area G indicates an area for one color pixel composed of R, G, and B sub-pixel areas. In the following description, when referring to a colored layer regardless of color, it is simply referred to as “colored layer 6”, and when referring to a colored layer by distinguishing colors, it is referred to as “colored layer 6R” or the like. A black light shielding layer BM is formed on the inner surface of the upper substrate 2 and between the colored layers 6. The black light shielding layer BM is preferably made of a black resin material, for example, a black pigment dispersed in a resin. In the present invention, instead of this, an overlapping light shielding layer (not shown) formed by overlapping the R, G and B colored layers 6 may be used.

  An overcoat layer 18 made of acrylic resin or the like is formed on the inner surfaces of the colored layer 6 and the black light shielding layer BM. The overcoat layer 18 has a function of protecting the colored layer 6 and the like from corrosion and contamination due to chemicals and the like used during the manufacturing process of the liquid crystal display device 100. On the inner surface of the overcoat layer 18, data lines 32 made of a striped transparent conductive material, for example, ITO (Indium-Tin-Oxide) are formed. One end of the data line 32 extends into the seal member 3 and is electrically connected to the conducting member 7 in the seal member 3. A vertical alignment film (not shown) made of polyimide or the like is formed on the inner surface of the data line 32 or the like.

  The data line 32 of the upper substrate 2 and the wiring 40 of the lower substrate 1 are electrically connected vertically via the conductive member 7 mixed in the seal member 3.

  A retardation plate (¼ wavelength plate) 11 and a polarizing plate 12 are arranged on the outer surface of the lower substrate 1, and a retardation plate (¼ wavelength plate) on the outer surface of the upper substrate 2. 13 and a polarizing plate 14 are arranged. A backlight 15 is disposed below the polarizing plate 12. The backlight 15 is preferably a point light source such as an LED (Light Emitting Diode) or a combination of a linear light source such as a cold cathode fluorescent tube and a light guide plate.

  Now, when transmissive display is performed in the liquid crystal display device 100 having such a configuration, the illumination light emitted from the backlight 15 travels along the path T shown in FIG. 2, and passes through the pixel electrode 10, the colored layer 6, and the like. Pass through to the observer. At this time, the illumination light passes through the colored layer 6 and exhibits a predetermined hue and brightness. Thus, a desired color display image is visually recognized by the observer.

(Electrode and wiring configuration)
Next, with reference to FIGS. 1 to 4, the configuration of the electrodes and wirings of the element substrate 91 and the color filter substrate 92 according to the first embodiment will be described. FIG. 3 is a plan view showing the configuration of electrodes and wirings of the element substrate 91 when the element substrate 91 is observed from the front direction (that is, the upper side in FIG. 2). FIG. 4 is a plan view showing the configuration of the electrodes of the color filter substrate 92 when the color filter substrate 92 is observed from the front direction (that is, the lower side in FIG. 2). 3 and 4, other elements other than the electrodes and wiring are not shown for convenience of explanation.

  A region where the pixel electrode 10 of the element substrate 91 and the data line 32 of the color filter substrate 92 intersect constitute a sub-pixel region SG which is a minimum unit of display. An area in which a plurality of sub-pixel areas SG are arranged in a matrix in the vertical direction and the horizontal direction in the drawing is an effective display area V (area surrounded by a two-dot chain line). In the effective display area V, images such as letters, numbers, and figures are displayed. 1 and 3, a region defined by the outer periphery of the liquid crystal display device 100 and the effective display region V is a frame region 38 that does not contribute to image display. In FIG. 3, the direction from the side 91a on the overhanging region 36 side of the element substrate 91 to the side 91c on the opposite side is the Y direction, and the direction from the side 91d to the side 91b is the X direction.

  First, with reference to FIG. 3, the structure of the electrode and wiring of the element substrate 91 will be described. The element substrate 91 includes a plurality of wirings 40, a plurality of scanning lines 31, a plurality of TFD elements 21, a plurality of pixel electrodes 10, an X driver IC 34, a plurality of Y driver ICs 33, and a plurality of external connection terminals 35. .

  Each Y driver IC 33 and X driver IC 34 are mounted on the overhang region 36 of the element substrate 91 via the ACF 37. A plurality of external connection terminals 35 are also formed on the projecting region 36 of the element substrate 91.

  Each input terminal 42 of each Y driver IC 33 and X driver IC 34 is electrically connected to one end side of each external connection terminal 35 via an ACF 37. The other end side of each external connection terminal 35 is connected to a wiring board (not shown) such as a flexible printed board via an ACF 37 or the like. Thereby, for example, signals and power are supplied to the liquid crystal display device 100 from an electronic device such as a mobile phone or an information terminal.

  Each output terminal 41 of the X driver IC 34 is electrically connected to one end side of each wiring 40 formed from the protruding region 36 to the inside of the seal member 3 via the ACF 37. On the other hand, the other end side of each wiring 40 is electrically connected to the conducting member 7 in the seal member 3.

  Each output terminal 41 of the plurality of Y driver ICs 33 is electrically connected to the plurality of scanning lines 31 via the ACF 37. Here, the Y driver IC 33 located on the left side of the paper surface is a scan line 31 corresponding to Y1, Y3, Y5, Y7,..., Ym-1 (m is an even number, the same applies hereinafter), that is, a scan corresponding to an odd row. A scanning signal is output to the line 31. On the other hand, the Y driver IC 33 located on the right side of the drawing outputs a scanning signal to the scanning lines 31 corresponding to Y2, Y4, Y6, Y8,..., Ym, that is, the scanning lines 31 corresponding to even rows. Each Y driver IC 33 sequentially and exclusively selects the scanning lines 31 corresponding to Y1, Y2, Y3,..., Ym−1, Ym in that order in one vertical scanning period. Therefore, the scanning direction of the scanning line 31 is set in the direction from the side 91c toward the side 91a, that is, in the direction of the arrow S1, as shown in FIGS. Accordingly, the side 91c side is located on the upstream side in the scanning direction S1 of the scanning line 31, and the side 91a side is located on the downstream side in the scanning direction S1 of the scanning line 31.

  In addition, each Y driver IC 33 generates four types of voltages, voltage VSH and voltage VSL, voltage VDH and voltage VDL (not shown), and outputs a scanning signal corresponding to each voltage to each scanning line 31.

  Among these, the voltage VSH and the voltage VSL are adopted as selection voltages. The voltage VSH and the voltage VSL as selection voltages are set to a level at which the TFD element 21 is turned on regardless of the voltage of the data signal supplied to the data line 32 when each is applied to the scanning line 31. . On the other hand, the voltage VDH and the voltage VDL are adopted as non-selection voltages or the like. The voltage VDH and the voltage VDL, which are non-selection voltages, are set to levels at which the TFD element 21 is turned off regardless of the voltage of the data signal supplied to the data line 32 when each is applied to the scanning line 31. Yes. Among these, the voltage VSH is a positive (higher side) voltage with respect to the central voltage (hereinafter referred to as “reference voltage”) VC between the voltage VDH and the voltage VDL, and the voltage VSL is higher than the reference voltage VC. This is a negative polarity (low side) voltage. The voltage VSH and the voltage VSL have the same absolute value as viewed from the reference voltage VC.

  For this reason, when focusing on one Ym−1 scanning line, the Y driver IC 33 selects the selection voltage VSH corresponding to the positive polarity during the first one frame period with respect to the one Ym−1 scanning line 31. The scanning signal corresponding to the non-selection voltage VDH is output, the selection voltage VSL and the non-selection voltage VDL corresponding to the negative polarity are output during the next one frame period, and the positive polarity is corresponded during the next one frame period. The scanning signal corresponding to the selection voltage VSH and the non-selection voltage VDH is output, and so on. Further, the Y driver IC 33 applies the first 1 to the Ym scanning line 31 selected next to one Ym-1 scanning line immediately after the selection period of the one Ym-1 scanning line 31 ends. Scan signals corresponding to the selection voltage VSL and the non-selection voltage VDL corresponding to the negative polarity are output during the frame period, and the scanning signals corresponding to the selection voltage VSH and the non-selection voltage VDH corresponding to the positive polarity are output during the next one frame period. The signal is output, the selection voltage VSL and the non-selection voltage VDL corresponding to the negative polarity are output during the next one frame period, and so on. That is, each Y driver IC 33 selects one of the plurality of scanning lines 31 in order in the scanning direction, and is selected immediately before the scanning line 31 with respect to the selected scanning line 31. A scanning signal corresponding to a potential whose polarity is inverted from that of the scanning line 31 is supplied.

  The plurality of scanning lines 31 includes a main line portion 31a and a bent portion 31b that bends at substantially right angles to the main line portion 31a. Each main line portion 31 a is formed in the Y direction from the projecting region 36 in the frame region 38. Each main line portion 31a is formed substantially parallel to each data line 32 and at a predetermined interval. Each bent portion 31 b is formed from the frame area 38 to the effective display area V. Each bent portion 31 b is formed between the pixel electrodes 10 adjacent to each other in the Y direction, and is electrically connected to the pixel electrode 10 via the corresponding TFD element 21. Here, each bent portion 31b is formed on the downstream side in the scanning direction S1 of the scanning line 31 from the TFD element 21 and the pixel electrode 10 to which the bent portion 31b is electrically connected.

  Next, the configuration of the electrodes of the color filter substrate 92 will be described. As shown in FIG. 4, stripe data lines 32 are formed on the color filter substrate 92 in the Y direction. As shown in FIG. 4, one end of each data line 32 extends into the seal member 3 and is electrically connected to the conduction member 7 in the seal member 3.

  FIG. 1 shows a state in which the element substrate 91 and the color filter substrate 92 described above are bonded together via the seal member 3. As shown in the drawing, each data line 32 of the color filter substrate 92 is substantially orthogonal to the bent portion 31b of each scanning line 31 of the element substrate 91, and a plurality of pixel electrodes 10 forming a column in the Y direction. And overlap in a plane.

  Further, the other end of each wiring 40 of the element substrate 91 and one end of each data line 32 of the color filter substrate 92 overlap in a planar manner in the seal member 3 as shown in FIG. The conductive member 7 in the seal member 3 is vertically connected through the conductive member 7. Therefore, the X driver IC 34 can output a data signal to the data line 32 via the plurality of wirings 40 and the conductive member 7.

  In the first embodiment having the electrode and wiring configuration as described above, the current value of the TFD element 21 changes based on the potential difference applied to the scanning line 31 and the data line 32, and the liquid crystal layer 4 is charged / discharged. As a result, the display state of the liquid crystal layer 4 is switched to the non-display state or its intermediate display state. Thereby, the display operation of the liquid crystal layer 4 is controlled.

(Configuration of element substrate)
Next, the configuration of the element substrate 91 according to the first embodiment will be described in detail with reference to FIGS. 5 and 6. FIG. 5 is a partial plan view showing a layout of the scanning lines 31, the TFD elements 21, the pixel electrodes 10 and the like formed on the element substrate 91. The element substrate 91 is observed from the front direction (ie, from the upper side in FIG. 2). The structure of the element substrate 91 is shown. In FIG. 5, a region surrounded by a rectangular dot-and-dash line indicates a sub-pixel region SG. FIG. 6 is a partial cross-sectional view taken along a cutting line X1-X2 in FIG. 5 and shows a cross-sectional configuration of the TFD element 21 and the like.

  In FIG. 5, bent portions 31 b of a plurality of pixel electrodes 10, a plurality of TFD elements 21, and a plurality of scanning lines 31 are formed on the lower substrate 1.

  The pixel electrode 10 is formed in the sub-pixel region SG, and has a plurality of (two in this example) transparent electrode portions (hereinafter referred to as “unit electrode portions 10 u”) having a substantially polygonal planar shape, and a first It has the connection part 10c and the 2nd connection part 10z. Each unit electrode part 10u, the 1st connection part 10c, and the 2nd connection part 10z are integrally formed, and each is connected. The first connection portion 10c has a substantially rectangular planar shape and is disposed between the unit electrode portions 10u. The second connection portion 10z is disposed between the unit electrode portion 10u located on the lower side of the drawing and the TFD element 21, and is electrically connected to the TFD element 21. The pixel electrode 10 having the above planar configuration has a substantially double skewered planar shape in plan view.

  As described above, in the vertical alignment method, since the liquid crystal molecules are aligned substantially radially on the unit electrode portion 10u, each unit electrode portion 10u has a shape such that the outer edge of the electrode is substantially equidistant from the center point, such as polygonal or circular. Is preferred. The reason why the plurality of unit electrode portions 10u are formed in one subpixel region SG is that the orientation of the liquid crystal molecules is easier to control when the individual unit electrode portions 10u are somewhat small. That is, the alignment of the liquid crystal molecules can be accurately controlled compared to the case where one pixel electrode is constituted by one large unit electrode portion.

  The pixel electrodes 10 having such a configuration are arranged in a matrix in the X and Y directions on the lower substrate 1, and among these, the group of pixel electrodes 10 forming a column in the X direction is a TFD. It is commonly connected to the bent portion 31 b of one scanning line 31 through the element 21. A group of pixel electrodes 10 forming a column in the Y direction faces one data line 32 in the upper substrate 2. Here, in the data line 32, an opening or a projection (projection) (not shown) is formed at a position corresponding to the approximate center of each unit electrode portion 10u. Thus, by forming openings or protrusions (convex portions) on the data lines 32, it is possible to regulate the tilt direction of the liquid crystal molecules that exhibit the vertical alignment in the initial alignment state. That is, when a voltage is applied between the element substrate 91 and the color filter substrate 92, the electric field in the region of each unit electrode unit 10u is controlled by the interaction between the opening or projection (projection) and each unit electrode unit 10u, A region in which liquid crystal molecules are radially aligned is formed. Thereby, in the liquid crystal display device 100 according to the first embodiment, the viewing angle dependency is suppressed, and a wide viewing angle can be achieved.

  The TFD element 21 is disposed between the second connection portion 10z of the pixel electrode 10 and the bent portion 31b of the scanning line 31. Here, a cross-sectional configuration of the TFD element 21 will be described with reference to FIG.

  The TFD element 21 includes a first TFD element 21a and a second TFD element 21b. The first TFD element 21a and the second TFD element 21b are formed by anodizing the island-shaped first metal film 322 mainly composed of tantalum tungsten or the like and the surface of the first metal film 322. It has an insulating film 323 and second metal films 316 and 336 formed on the surface and spaced apart from each other. Among these, the second metal films 316 and 336 are obtained by patterning the same conductive film such as chromium, and the former second metal film 316 is branched from the bent portion 31b of the scanning line 31 in a T shape. On the other hand, the latter second metal film 336 is used to electrically connect to the second connection portion 10z of the pixel electrode 10.

  Here, among the TFD elements 21, the first TFD element 21 a becomes the second metal film 316 / the insulating film 323 / the first metal film 322 in order when viewed from the bent portion 31 b side of the scanning line 31. Since the metal / insulator / metal structure is adopted, the current-voltage characteristic is nonlinear in both positive and negative directions. On the other hand, when viewed from the bent portion 31b side of the scanning line 31, the second TFD element 21b becomes the first metal film 322 / insulating film 323 / second metal film 336 in order, and becomes the first TFD element 21a. Take the opposite structure. For this reason, the current-voltage characteristics of the second TFD element 21b are obtained by making the current-voltage characteristics of the first TFD element 21a point-symmetric with respect to the origin. As a result, the TFD element 21 has a shape in which two TFDs are connected in series in opposite directions. Therefore, the current-voltage nonlinear characteristic is symmetric in both positive and negative directions compared to the case of using one element. become.

  The bent portion 31b of the scanning line 31 is provided between the pixel electrodes 10 adjacent to each other in the Y direction, and is electrically connected to the TFD element 21 located above the bent portion 31b. The TFD element 21 is electrically connected to the second connection portion 10z of the pixel electrode 10 located on the upper side thereof. Therefore, the bent portion 31b of the scanning line 31 is provided on the downstream side in the scanning direction S1 of the scanning line 31 from the TFD element 21 and the pixel electrode 10 to which the scanning line 31 is electrically connected. The width D1 of each scanning line 31 is set to a value smaller than the width D2 of the data line 32.

  In the element substrate 91 having the above configuration, as described above, the scanning direction of the scanning line 31 is set in the arrow S1 direction. That is, the scanning direction S1 of the bent portion 31b of the scanning line 31 is set in the direction from the bent portion 31b to the pixel electrode 10 that is adjacent to the bent portion 31b and is not electrically connected. In the element substrate 91, the plurality of Y driver ICs 33 (see FIG. 1 and FIG. 3 and the like) scan lines 31 corresponding to the bent portions 31b and Y2 of the scanning line 31 corresponding to Y1 in one vertical scanning period. , Bent portion 31b of the scanning line 31 corresponding to Y3, a bent portion 31b of the scanning line 31 corresponding to Y4,..., Ym−1, a bent portion 31b of FIG. And the scanning line 31 corresponding to Ym is scanned (selected) sequentially in the order of the bent portion 31b (see FIG. 3, etc.) (so-called line-sequential driving method).

  Further, as described above, the bent portion 31b of each scanning line 31 outputs a scanning signal corresponding to a potential obtained by inverting the polarity of the voltage for each scanning line 31 by the plurality of Y driver ICs 33. That is, a scanning signal corresponding to a positive (or negative) potential is applied to the bent portion 31b of each scanning line 31 corresponding to the odd rows of Y1, Y3,..., Ym-1. On the other hand, a scanning signal corresponding to a negative (or positive) potential is applied to the bent portion 31b of each scanning line 31 corresponding to even rows of Y2, Y4,. , Scanning line inversion driving method).

  Next, with reference to FIG. 7, a description will be given of specific operational effects of the first embodiment according to the present invention compared with the comparative example. FIG. 7A schematically shows a partial plan view of a liquid crystal display device according to a comparative example. FIG. 7B is a partial cross-sectional view taken along a cutting line B-B ′ in FIG. On the other hand, FIG. 7C is a partial plan view of the liquid crystal display device 100 according to the first embodiment. FIG. 7D shows a partial cross-sectional view along the cutting line C-C ′ in FIG. In FIG. 7, only the minimum elements necessary for the description are illustrated, and the same elements as those described above are denoted by the same reference numerals, and the description thereof is omitted or simplified. In FIG. 7, a region surrounded by a rectangular dot-and-dash line indicates a sub-pixel region SG.

  First, with reference to FIGS. 7A and 7B, the configuration and the like of a liquid crystal display device according to a comparative example will be described. On the element substrate side, a plurality of data lines 32x, a plurality of TFD elements 21, and a plurality of pixel electrodes 10 are formed. Each data line 32x is a linear wiring made of chromium or the like, and extends in the Y direction at an appropriate interval in the X direction. Each TFD element 21 is formed at a corner position of each sub-pixel region SG. The plurality of pixel electrodes 10 are formed in the sub-pixel region SG. Each data line 32x is electrically connected to each pixel electrode 10 via each TFD element 21. On the other hand, on the side of the color filter substrate that is the counter substrate, Ym-1 rows (m is a natural number of 2 or more, the same applies hereinafter) and scanning lines 31x (corresponding to broken line portions) corresponding to the Ym rows are formed. Each scanning line 31x is a striped electrode made of ITO or the like, and extends in the X direction. Each scanning line 31x faces a plurality of pixel electrodes 10 forming a column in the X direction, and the width D3 of each scanning line 31x is larger than the length D4 of each pixel electrode 10 in the Y direction. A liquid crystal layer 4 is sandwiched between the element substrate and the color filter substrate.

  Further, in the comparative example, the line sequential driving method is adopted as in the first embodiment, and the scanning direction of the scanning line 31x is set in the arrow S1 direction as shown in FIG. 7A. Further, in the comparative example, the scanning line inversion driving method is adopted as in the first embodiment, and each scanning line 31x corresponds to a potential whose polarity is inverted for each scanning line 31x by a Y driver IC (not shown). A scanning signal is output. Here, the potential when the selection voltage corresponding to the positive polarity is applied to the scanning line 31x of the Ym-1 row and the potential when the non-selection voltage corresponding to the negative polarity is applied to the scanning line 31x of the Ym row. The difference is set to about 10 V or more, for example.

  In the comparative example having the above configuration, the width D3 of each scanning line 31x is larger than the length D4 of each pixel electrode 10 in the Y direction. That is, both ends of each scanning line 31x are formed up to corresponding positions between the pixel electrodes 10 adjacent to each other in the Y direction. Further, the liquid crystal display device according to the comparative example adopts the scanning line inversion driving method as described above, and the selection voltage of the scanning line 31x of the Ym-1 row and the non-selection voltage of the scanning line 31x of the Ym row. As described above, the difference is about 10 V or more, and the voltage difference is extremely large.

  For this reason, there exists a possibility that the following malfunctions may arise. For example, in FIG. 7B, a selection voltage is applied to the scanning line 31x corresponding to the Ym-1 row (m is a natural number of 2 or more, and the same applies hereinafter), and the Ym row is applied to the scanning line 31x corresponding to the Ym row. Assuming that a non-selection voltage having a polarity different from that of the scanning line 31x is applied, an electric field E directed to the right is generated between the former scanning line 31x and the pixel electrode 10a opposed thereto, and the latter scanning line 31x A leftward electric field E is generated between the pixel electrode 10b facing the pixel electrode 10b. In other words, in the region E1 corresponding to the area between the pixel electrode 10a and the pixel electrode 10b, a rightward electric field E by the scanning line 31x corresponding to the Ym-1 row and a leftward electric field E by the scanning line 31x corresponding to the Ym row. Both electric fields E are generated, the alignment disorder of the liquid crystal molecules 4 occurs in the region E1, and the display quality may be deteriorated. In particular, in the comparative example, the vertical alignment method is adopted, and the alignment of the liquid crystal molecules 4 is controlled by utilizing the direction of the electric field, so that the possibility of such a problem is extremely high.

  Next, with reference to FIG.7 (c) and (d), the structure and effect of the liquid crystal display device 100 of 1st Embodiment which concern on this invention are demonstrated. Since the detailed configuration of the liquid crystal display device 100 of the first embodiment has been described above, the following description will be simplified. On the element substrate 91 side, a bent portion 31b of the scanning line 31, a plurality of TFD elements 21, and a plurality of pixel electrodes 10 corresponding to the Ym-1 row and the Ym row are formed, respectively. Each pixel electrode 10 is formed in the sub-pixel region SG. Each TFD element 21 is formed at a position below each pixel electrode 10. Each bent portion 31b is formed between pixel electrodes 10 adjacent to each other in the Y direction. That is, each bent portion 31b is provided on the downstream side in the scanning direction S1 of the scanning line 31 with respect to the TFD element 21 and the pixel electrode 10 to which the respective bent portions 31b are electrically connected. On the other hand, a plurality of data lines 32 (corresponding to broken line portions) are formed on the side of the color filter substrate 92 which is the counter substrate. Each data line 32 extends in the Y direction. Each data line 32 faces a plurality of pixel electrodes 10 that form a column in the Y direction. The liquid crystal layer 4 is sandwiched between the element substrate 91 and the color filter substrate 92.

  In the liquid crystal display device 100 having such a configuration, for example, in FIG. 7D, a selection voltage is applied to the bent portion 31b of the Ym-1 row, and the scanning line 31x of the Ym-1 row is applied to the bent portion 31b of the Ym row. Assuming that non-selection voltages having different polarities are applied, a rightward electric field E is generated in the vicinity of the corresponding region E2 between the former bent portion 31b and the data line 32 opposite thereto, and the latter bent portion. A leftward electric field E is generated in the vicinity of the corresponding region E3 between the portion 31b and the data line 32 facing the portion 31b. At this time, although not shown, a rightward electric field E is generated between the pixel electrode 10a and the data line 32 facing the pixel electrode 10a, and leftward is also applied between the pixel electrode 10b and the data line 32 facing the pixel electrode 10b. The electric field E is generated.

  Therefore, in the vicinity of the edge 10ba of the pixel electrode 10b on the side of the bent portion 31b of the Ym-1 row, both the electric field E generated by the bent portion 31b of the Ym-1 row and the electric field E generated by the bent portion 31b of the Ym-1 row. The electric field E is applied. That is, when focusing on the pixel electrode 10b, the vicinity of the edge 10ba of the pixel electrode 10b is not adversely affected by the electric field E generated by the bent portion 31b of the Ym row to which the pixel electrode 10b is electrically connected. It is affected by the electric field E generated by the bent portion 31b adjacent to 10b and not electrically connected to the Ym-1 row. Here, contrary to the above, when a selection voltage is applied to the bent portion 31b of the Ym row, and a non-selection voltage having a polarity different from that of the bent portion 31b of the Ym-1 row is applied to the bent portion 31b of the Ym-1 row. The same effect as described above occurs.

  As described above, in the first embodiment according to the present invention, the bent portion 31b of the scanning line 31 whose polarity is inverted by a large potential difference is arranged between the pixel electrodes 10 adjacent to each other in the Y direction.

  Thereby, the influence of the electric field E generated by the bent portion 31b of the scanning line 31 can be limited only to the pixel electrode 10 adjacent to the bent portion 31b and not electrically connected. That is, when a selection voltage is applied to the bent portion 31b of the Ym-1 row and a non-selection voltage having a polarity different from that of the bent portion 31b of the Ym-1 row is applied to the bent portion 31b of the Ym-1 row, The influence of the electric field E generated by the bent portion 31b of one row can be limited only to the vicinity of the edge of the pixel electrode 10 corresponding to the Ym row on the bent portion 31b side of the Ym-1 row. Thereby, the alignment state of the liquid crystal molecules 4 can be stabilized to some extent in the vicinity thereof.

  Further, in the first embodiment according to the present invention, the bent portion 31b of the scanning line 31 is downstream of the bent portion 31b in the scanning direction from the TFD element 21 and the pixel electrode 10 that are electrically connected to the bent portion 31b. Located on the side. Therefore, even if the alignment disorder of the liquid crystal molecules 4 occurs in the vicinity of the edge of the pixel electrode 10 corresponding to the Ym row described above, immediately after that, the bent portion 31b corresponding to the next Ym row is instantaneously selected. A voltage is applied, and data corresponding to the selected voltage is written to the pixel electrode 10 corresponding to the Ym row. As a result, the alignment disorder of the liquid crystal molecules 4 can be eliminated instantly. Moreover, in the liquid crystal display device 100, the period in which all the scanning lines 31 are selected and ended, that is, one frame period is extremely short. For this reason, even if the alignment disorder of the liquid crystal molecules 4 occurs near the edge of the pixel electrode 10 as described above, the observer can visually recognize the occurrence of such alignment disorder of the liquid crystal molecules 4. Can not. Therefore, it is possible to prevent the display quality from deteriorating.

[Second Embodiment]
The second embodiment is a vertical alignment type liquid crystal display device capable of widening the viewing angle, and has a structure in which a pixel electrode, a scanning line, and a TFD element are separated by an insulating film, so-called overshoot. The present invention is applied to a liquid crystal display device having a layer structure.

  FIG. 8 shows a cross-sectional configuration of a liquid crystal display device 200 according to the second embodiment. FIG. 8 is a cross-sectional view corresponding to FIG. Note that the planar configuration of the liquid crystal display device 200 of the second embodiment is substantially the same as that of the first embodiment, and is not shown.

  As understood by comparing FIG. 2 and FIG. 8, the second embodiment is different from the first embodiment only in the configuration of the element substrate. Otherwise, for example, the driving method of the scanning line 31 is the first. Common to the embodiment. Therefore, hereinafter, the description will focus on the configuration of the element substrate 93 of the second embodiment. In the second embodiment, the same elements as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified. To do.

  As shown in FIG. 8, bent portions 31 b of a plurality of scanning lines 31, a plurality of TFD elements 21, and the like are formed on the lower substrate 1. Each bent portion 31b is formed at a corresponding position between the pixel electrodes 10 adjacent to each other. Each TFD element 21 is formed at a position corresponding to a corner of the sub-pixel region SG. Each TFD element 21 is electrically connected to each bent portion 31b. On the lower substrate 1, each scanning line 31, and each TFD element 21, an overlayer 17 that is an insulating film is formed. The overlayer 17 has an opening, that is, a contact hole 17 a at a position corresponding to each TFD element 21. Each pixel electrode 10 has the same planar shape as that of the first embodiment, and is formed on the overlayer 17 corresponding to the sub-pixel region SG. A part of each pixel electrode 10 is formed up to the inside of the contact hole 17a, and is electrically connected to each corresponding TFD element 21. For this reason, each pixel electrode 10 is electrically connected to the bent portion 31 b of each scanning line 31 via each TFD element 21. Accordingly, each bent portion 31b is provided on the downstream side in the scanning direction S1 of the scanning line 31 from the TFD element 21 and the pixel electrode 10 to which the respective bent portions 31b are electrically connected, as in the first embodiment. .

  The element substrate 93 having the above-described configuration has a structure in which each pixel electrode 10, each TFD element 21, and each scanning line 31 are isolated by the overlayer 17, that is, an overlayer structure. That is, in the second embodiment, each bent portion 31b is covered with the overlayer 17 that is an insulating film. Thereby, when a selection voltage is applied to the bent portion 31b of the Ym-1 row, and a non-selection voltage having a polarity different from that of the bent portion 31b of the Ym-1 row is applied to the bent portion 31b of the Ym-1 row, The corresponding pixel electrode 10 is hardly affected by the electric field E generated by the bent portion 31b of the Ym-1 row. Therefore, the alignment disorder of the liquid crystal molecules 4 hardly occurs near the edge of the pixel electrode 10 adjacent to the bent portion 31b of the Ym-1 row. In addition, the other effect in 2nd Embodiment is the same as that of 1st Embodiment.

[Modification]
In the first embodiment, as shown in FIG. 5, the bent portion 31b of the scanning line 31 is arranged between the pixel electrodes 10 adjacent to each other in the Y direction, and is driven above the bent portion 31b. The TFD element 21 and the pixel electrode 10 to be arranged are arranged respectively. The present invention is not limited to this, and as shown in FIG. 9, the elements of the element substrate corresponding to FIG. 5 may be configured upside down in the Y direction. That is, in the element substrate 95, the bent portion 31b of the scanning line 31 is disposed between the pixel electrodes 10 adjacent to each other in the Y direction, and the TFD element 21 and the pixel electrode that are driven by the device substrate 95 are provided below the bent portion 31b. You may comprise so that 10 may each be arrange | positioned. However, in this case, it is necessary to set the scanning direction of the bent portion 31b of the scanning line 31 to the arrow S2 direction opposite to the scanning direction S1 of the bent portion 31b of the first embodiment. Thereby, the effect similar to 1st Embodiment can be acquired. Of course, such a configuration can also be applied to the second embodiment.

  In the first embodiment, the present invention is applied to the vertical alignment type liquid crystal display device 100. The present invention is not limited to this, and the present invention may be applied to a liquid crystal display device such as TN (Twisted Nematic). That is, such a configuration will be briefly described with reference to FIG. On the lower substrate 1 in the element substrate 97, rectangular pixel electrodes 50 are arranged in a matrix in the X and Y directions. Each TFD element 21 is disposed at a corner position of each pixel electrode 50, and each TFD element 21 is electrically connected to each pixel electrode 50. The bent portion 31b of each scanning line 31 is disposed between the pixel electrodes 50 adjacent to each other in the Y direction, and is electrically connected to each TFD element 21 located above the bent portion 31b. Yes. Here, the scanning direction of the bent portion 31b is set in the arrow S1 direction as in the first embodiment. Therefore, each bent portion 31b is provided on the downstream side in the scanning direction S1 of the scanning line 31 from the TFD element 21 and the pixel electrode 50 that are driven by each of the bent portions 31b. With such a configuration, it is possible to obtain the same operational effects as in the first embodiment. Of course, such a configuration can also be applied to the second embodiment.

  In the first and second embodiments, the present invention is applied to a transmissive liquid crystal display device. However, the present invention is not limited to this, and the present invention is applied to a reflective or transflective liquid crystal display device. It doesn't matter.

[Electronics]
Next, an embodiment when the liquid crystal display device 100 according to the first embodiment of the present invention is used as a display device of an electronic apparatus will be described. Note that the liquid crystal display devices of the second embodiment and the modification examples can also be applied to the display device of the electronic apparatus.

  FIG. 11 is a schematic configuration diagram showing the overall configuration of the present embodiment. The electronic apparatus shown here includes the liquid crystal display device 100 and a control unit 410 that controls the liquid crystal display device 100. Here, the liquid crystal display device 100 is conceptually divided into a panel structure 403 and a drive circuit 402 composed of a semiconductor IC or the like. Further, the control means 410 includes a display information output source 411, a display information processing circuit 412, a power supply circuit 413, and a timing generator 414.

  The display information output source 411 includes a memory such as a ROM (Read Only Memory) or a RAM (Random Access Memory), a storage unit such as a magnetic recording disk or an optical recording disk, and a tuning circuit that tunes and outputs a digital image signal. The display information is supplied to the display information processing circuit 412 in the form of an image signal of a predetermined format based on various clock signals generated by the timing generator 414.

  The display information processing circuit 412 includes various well-known circuits such as a serial-parallel conversion circuit, an amplification / inversion circuit, a rotation circuit, a gamma correction circuit, and a clamp circuit, and executes processing of input display information to obtain image information. Are supplied to the drive circuit 402 together with the clock signal CLK. The driving circuit 402 includes a scanning line driving circuit, a data line driving circuit, and an inspection circuit. The power supply circuit 413 supplies a predetermined voltage to each of the above-described components.

  Next, specific examples of electronic devices to which the liquid crystal display device 100 according to the first embodiment of the present invention can be applied will be described with reference to FIG.

  First, an example in which the liquid crystal display device 100 according to the first embodiment is applied to a display unit of a portable personal computer (so-called notebook personal computer) will be described. FIG. 12A is a perspective view showing the configuration of this personal computer. As shown in the figure, the personal computer 710 includes a main body 712 having a keyboard 711 and a display 713 to which the liquid crystal display panel according to the present invention is applied.

  Next, an example in which the liquid crystal display device 100 according to the first embodiment is applied to a display unit of a mobile phone will be described. FIG. 12B is a perspective view showing the configuration of this mobile phone. As shown in the figure, the cellular phone 720 includes a plurality of operation buttons 721, a reception port 722, a transmission port 723, and a display unit 724 to which the liquid crystal display device 100 according to the present invention is applied.

  Note that, as an electronic device to which the liquid crystal display device 100 according to the present invention can be applied, in addition to the personal computer shown in FIG. 12A and the mobile phone shown in FIG. Examples include a finder type / monitor direct-view type video tape recorder, a car navigation device, a pager, an electronic notebook, a calculator, a word processor, a workstation, a videophone, a POS terminal, and a digital still camera.

FIG. 3 is a plan view showing a configuration of electrodes and wirings of the liquid crystal display device according to the first embodiment. 1 shows a cross-sectional configuration of a liquid crystal display device according to a first embodiment. The top view which shows the structure of the electrode, wiring, etc. of the element substrate which concern on 1st Embodiment. The top view which shows the structure of the electrode of the color filter board | substrate which concerns on 1st Embodiment. The partial top view which shows the structure of the element substrate which concerns on 1st Embodiment. Sectional drawing which shows the structure of the TFD element of 1st Embodiment. The figure explaining the effect of 1st Embodiment which concerns on this invention compared with the comparative example The cross-sectional structure of the element substrate which concerns on 2nd Embodiment is shown. The fragmentary top view which shows the structure of the element substrate which concerns on a modification. The fragmentary top view which shows the structure of the element substrate which concerns on another modification 1 is a circuit block diagram of an electronic apparatus to which a liquid crystal display device according to the present invention is applied. 6 illustrates an example of an electronic device to which the liquid crystal display device according to the invention is applied.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Upper substrate, 2 Lower substrate, 3 Seal member, 6 Colored layer, 7 Conductive member, 10, 50 Pixel electrode, 21 TFD element, 31 Scan line, 32 Data line, 40 Wiring, 92 Color filter substrate, 91, 93 95, 97 Element substrate, 100 Liquid crystal display device

Claims (8)

A plurality of pixel electrodes arranged in a matrix in the row and column directions;
A two-terminal element electrically connected to the pixel electrode;
A plurality of scanning lines extending in a row direction between the pixel electrodes adjacent to each other in the column direction and electrically connected to the two-terminal elements, and a scanning line driving circuit for sequentially scanning the plurality of scanning lines And an opposing substrate having a data line,
Each of the scanning lines is downstream of the scanning terminal in which the scanning line driving circuit sequentially scans the plurality of scanning lines from the two-terminal elements and the pixel electrodes electrically connected to the scanning lines. An electro-optical device characterized by being positioned.   The scanning direction is a direction of the pixel electrode adjacent to and not electrically connected to the one scanning line with respect to one scanning line of the plurality of scanning lines. The electro-optical device according to Item 1.   The scanning line driving circuit sequentially selects one of the plurality of scanning lines sequentially in the scanning direction, and is selected immediately before the selected scanning line with respect to the selected scanning line. 3. The electro-optical device according to claim 1, wherein a scanning signal corresponding to a potential obtained by inverting the polarity of the scanning line is supplied. A data line driving circuit for outputting a data signal to the data line;
The electro-optical device according to claim 3, wherein the scanning signal is supplied with a potential having a larger absolute value than the data signal from the scanning line driving circuit. The element substrate has a wiring and another driving circuit electrically connected to the wiring,
The element substrate and the counter substrate are bonded together by a sealing member having conductive particles,
The electro-optical device according to claim 1, wherein one end of the data line is located in the seal member and is electrically connected to the wiring via the conductive particles. In the element substrate, an insulating layer having a plurality of contact holes is formed between the scanning line and the two-terminal element and the pixel electrode,
The electro-optical device according to claim 1, wherein the pixel electrode is electrically connected to the two-terminal element through the contact hole. The liquid crystal is formed of a liquid crystal material having negative dielectric anisotropy,
The electro-optical device according to claim 1, wherein the pixel electrode has a plurality of unit electrode portions each having a polygonal shape or a circular shape.   An electronic apparatus comprising the electro-optical device according to claim 1 as a display unit.

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