JP2007086576A - Semi-transmission liquid crystal display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an MVA system semi-transmission liquid crystal display panel which prevents light leakage from the inclined surface of a top coat layer for cell gap adjustment of a reflection part and has an improved contrast and a satisfactory image quality. <P>SOLUTION: The MVA system semi-transmission liquid crystal display panel 10 comprises: a first substrate provided with a pixel electrode 19 having a slit 33 between a transmission part 16 and the reflection part 15, a reflection plate 18 and an auxiliary capacitance line 21 disposed on the lower side of the reflection plate; a second substrate which is provided with the top coat layer 27 and alignment regulating means 31, 32 and has a common electrode formed on the surface thereof; vertically aligned films laminated on the first substrate and the second substrate; and a liquid crystal layer which is disposed between both of the substrates and has negative dielectric anisotropy, wherein the auxiliary capacitance line 21 is extended from a position corresponding to the reflection part up to the slit beyond the position corresponding to the top coat layer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transflective liquid crystal display panel, and more particularly to an MVA (Multi-domain Vertically Aligned) type transflective liquid crystal display panel with good contrast and good display quality.

  In recent years, the application of liquid crystal display devices has rapidly spread not only in information communication equipment but also in general electric equipment. Since a liquid crystal display device does not emit light by itself, a transmissive liquid crystal display device having a backlight is often used. However, since the power consumption of the backlight is large, a reflective liquid crystal display device that does not require a backlight is used to reduce the power consumption, particularly for a portable type. Since the device uses external light as a light source, it is difficult to see in a dark room. Thus, in recent years, development of a transflective liquid crystal display device having both transmissive and reflective properties has been underway.

  A liquid crystal display panel used in the transflective liquid crystal display device has a transmissive portion having a pixel electrode and a reflective portion having both a pixel electrode and a reflector in one pixel region, and is dark. The backlight is turned on to display an image using the transmissive portion of the pixel area, and the bright portion is used to display the image using external light without turning on the backlight. Since there is no need to always turn on the backlight, there is an advantage that power consumption can be greatly reduced.

  By the way, the demand for a wide viewing angle with respect to a liquid crystal display panel has not been so high in the past because of the limited number of users of small display units in mobile devices such as mobile phones. In mobile devices that are becoming increasingly sophisticated, the demand for a wide viewing angle of a liquid crystal display panel in a display section has been rapidly increasing. Based on such demands for wide viewing angles for mobile devices, MVA (Multi-domain vertically aligned) transflective liquid crystal display panels are used instead of TN liquid crystal display panels that have been widely used in mobile devices. Development has recently been promoted (see Patent Documents 1 and 2 below).

Here, an MVA transflective liquid crystal display panel disclosed in Patent Document 2 below will be described with reference to FIGS. 3A is a perspective view showing a schematic structure of the MVA-type transflective liquid crystal display panel 50, and FIG. 3B is a tilt of the liquid crystal when an electric field is applied to the liquid crystal in the liquid crystal layer. FIG. 4 is a schematic view showing a state, and FIG. 4 is a cross-sectional view taken along line BB in FIG.
In the transflective liquid crystal display panel 50, an inclined surface or a step 53 is provided between the reflective portion 51 and the transmissive portion 52, and the reflective portion 51 and the transmissive portion 52 are continuous via the step 53. ing. A first opening region 56 is formed in the pixel electrode 55 of the first substrate 54 in the transflective liquid crystal display panel 50 as a region where the pixel electrode 55 is not formed. The first opening region 56 constitutes a first alignment dividing unit, and is formed across the reflection portion 51 and the transmission portion 52 with the step 53 interposed therebetween.

  As a result, the pixel electrode 55 a in the reflective portion 51 and the pixel electrode 55 b in the transmissive portion 52 are connected to each other via a single line 57 extending in the length direction of the transflective liquid crystal display panel 50.

On the counter electrode 59 of the second substrate 58, second opening regions 60 a and 60 b are formed to face the pixel electrode 55 a in the reflection part 51 and the pixel electrode 55 b in the transmission part 52, respectively. The second opening regions 60a and 60b constitute a second alignment dividing unit. The second opening regions 60a and 60b are configured as cross-shaped slits, and the center of the second opening region 60b is further aligned so that the center of the second opening region 60a coincides with the center of the pixel electrode 55a in the vertical direction. Are arranged so as to coincide with the center of the pixel electrode 55b.
According to the transflective liquid crystal display panel 50, as shown in FIGS. 3B and 4, when an electric field is applied to the liquid crystal 61 in the liquid crystal layer, the liquid crystal is formed on the first opening region 56 in the step 53. Is inclined in the direction of the line 57 on the counter electrode 59 side, and on the reflective portion 51 and the transmissive portion 52, it is inclined to the center of the region corresponding to the reflective portion 51 or the center of the region corresponding to the transmissive portion 52 on the counter electrode 59. To do. As described above, in the transflective liquid crystal display panel 50, the alignment direction of the liquid crystal molecules is determined, so that deterioration of visual characteristics and response speed can be reduced.

  The MVA transflective liquid crystal display panel 50 described above is provided with a step 53 between the reflective portion 51 and the transmissive portion 52 on the first substrate 54 side, and the cell gap d1 in the reflective portion 51 and the transmissive portion are known as is well known. The cell gap d2 in the area is adjusted to be d1 = (d2) / 2, and the display image quality in the reflection part 51 and the display image quality in the transmission part are adjusted to be the same. An MVA-type transflective liquid crystal display panel in which a configuration for adjusting the gap is provided on the second substrate side is also known.

  An example of an MVA type transflective liquid crystal display panel according to a conventional example in which a top coat layer as a configuration for adjusting the cell gap is provided on the second substrate side will be described with reference to FIGS. FIG. 5 is a plan view of one pixel showing a second substrate of a conventional transflective liquid crystal display panel provided with a top coat layer for adjusting the cell gap on the second substrate side. 6 is a cross-sectional view taken along the line CC of FIG. However, in FIG. 5, in order to emphasize the auxiliary capacitance line and the top coat layer, the hierarchy is ignored and the boundary of the auxiliary capacitance line is represented by a thick solid line and the boundary of the top coat layer is represented by a thick broken line.

  In the transflective liquid crystal display panel 70, a plurality of scanning lines 12 and signal lines 13 are arranged in a matrix form directly or through an inorganic insulating film 14 on a transparent glass substrate 11 of a first substrate. Is formed. Here, a region surrounded by the scanning line 12 and the signal line 13 corresponds to one pixel, and a TFT (Thin Film Transistor) (not shown) serving as a switching element is formed for each pixel. The surface of the pixel TFT or the like is covered with a protective insulating film 23.

  Then, a fine uneven portion is formed on the surface of the reflecting portion 15 so as to cover the scanning line 12, the signal line 13, the inorganic insulating film 14, the protective insulating film 23, etc., and the surface of the transmitting portion 16 is flat. An interlayer film 17 made of the formed organic insulating film is laminated. 5 and 6, the concave and convex portions of the reflecting portion 15 are omitted. The interlayer film 17 is provided with a contact hole 20 at a position corresponding to the drain electrode D of the TFT. In each pixel, the reflective portion 15 is made of, for example, aluminum metal on the contact hole 20 and on the surface of the interlayer film 17. A reflective plate 18 is provided, and a transparent pixel electrode 19 made of, for example, ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide) is formed on the surface of the reflective plate 18 and the surface of the interlayer film 17 of the transmissive portion 16. Yes.

  On the reflecting portion 15 side, the auxiliary capacitance line 21 is disposed below the position where the reflecting plate 18 of the interlayer film 17 exists, and the reflecting plate 18 and the pixel electrode 19 are adjacent to each other in the plan view. The scanning line 12 and the signal line 13 are formed so as to be slightly overlapped with each other so as to prevent light leakage, and the pixel electrode 19 on the transmissive part 16 side is adjacent to the reflection plate and the pixel electrode. The pixel electrode and the reflection plate of the pixel are not in contact with each other and are formed so as to slightly overlap the scanning line 12 and the signal line 13.

  Further, in the transflective liquid crystal display panel 70, a slit 33 is provided in the boundary region between the reflective portion 15 and the transmissive portion 16 of the pixel electrode 19 in order to regulate the orientation of liquid crystal molecules. The pixel electrode 19a of the reflective portion 15 and the pixel electrode 19b of the transmissive portion 16 are divided, and the pixel electrode 19a of the reflective portion 15 and the pixel electrode 19b of the transmissive portion 16 are electrically connected through a thin line 34 portion. It is connected. A vertical alignment film (not shown) is laminated on the surface of the pixel electrode 19 so as to cover all the pixels.

  In addition, any one of red (R), green (G), and blue (B) formed on the display area of the transparent glass substrate 25 of the second substrate corresponding to each pixel. A striped color filter layer 26 is provided. In addition, since the color filter layer 26 having the same thickness is used in the reflection portion 15 and the transmission portion 16, a top coat layer 27 having a predetermined thickness is provided on a part of the color filter layer 26 of the reflection portion 15. The top coat layer 27 is provided over the entire reflecting portion 15, and the thickness thereof is the thickness of the liquid crystal layer in the reflecting portion 15, so that the so-called cell gap d 1 is half of the cell gap d 2 of the transmitting portion 16. That is, d1 = (d2) / 2.

  Note that the top coat layer 27 represented by the thick broken line in FIG. 5 represents the boundary between the substantially flat portions, and the inclined surface 27a of the top coat layer 27 is represented by the thick broken line. Although it is slightly smaller than the border, it extends and extends around.

  In addition, protrusions 31 and 32 for regulating the orientation of the liquid crystal are respectively formed on a part of the surface of the color filter layer 26 located in the transmission part 16 and a part of the surface of the topcoat layer 27 located in the reflection part 15. A common electrode and a vertical alignment film (both not shown) are sequentially stacked on the surfaces of the color filter layer 26, the top coat layer 27, and the protrusions 31 and 32.

  Then, the first substrate and the second substrate are opposed to each other, a sealing material is provided around both substrates, the two substrates are bonded together, and a liquid crystal 29 having negative dielectric anisotropy is filled between the substrates. Thus, an MVA transflective liquid crystal display panel 70 is obtained. A backlight device having a well-known light source, a light guide plate, a diffusion sheet, and the like (not shown) is disposed below the first substrate.

In this MVA type transflective liquid crystal display panel 70, when no electric field is applied between the pixel electrode 19 and the counter electrode, the major axis of the liquid crystal molecules in the liquid crystal layer is perpendicular to the surface of the pixel electrode and the counter electrode. Since the light is not transmitted through the liquid crystal and the light is transmitted when an electric field is applied between the pixel electrode and the counter electrode, the light leakage at the transmissive part greatly affects the display image quality. Furthermore, since the liquid crystal molecules are inclined toward the protrusions 31 to 32 due to the presence of the slit 33 and the protrusions 31 and 32 of the pixel electrode 19, the viewing angle is very wide.
JP 2003-167253 A (claims, paragraphs [0050] to [0057], FIG. 1) JP 2004-069767 (Claims, paragraphs [0044] to [0053], FIG. 1)

  As described above, in the conventional MVA type transflective liquid crystal display panel, a configuration for adjusting the cell gap of the reflection portion and the cell gap of the transmission portion is provided on the first substrate side and the second substrate side. However, it has been found that the latter MVA transflective liquid crystal display panel 70 has a unique problem that does not occur in the former.

  That is, in the MVA-type transflective liquid crystal display panel 70 in which the topcoat layer 27 for adjusting the cell gap of the reflective portion and the cell gap of the transmissive portion is provided on the second substrate side, the surface of the auxiliary capacitance line 21 is provided. A reflection plate 18 is also provided for the purpose of light shielding. The reflector 18 is made of a metal such as aluminum or silver, and is manufactured by laminating on the interlayer film 17 by a physical method and then etching, but due to variations in the etching conditions, the reflector 18 May melt than the design value.

  In such a state, fine irregularities (not shown) are provided on the surface of the reflecting portion 15 in order to diffusely reflect the reflected light, and the liquid crystal molecules in the vicinity of the irregularities surface with respect to the first substrate. Since it is tilted from the vertical direction, light from the backlight provided on the back surface of the first substrate is transmitted, which appears as a reduction in contrast in display image quality.

  The present invention has been made to solve the problems of the conventional transflective liquid crystal display panel of the MVA type, and its purpose is to adjust the cell gap of the reflection part and the cell gap of the transmission part. In the MVA type transflective liquid crystal display panel in which the top coat layer 27 is provided on the second substrate side, light leakage from the inclined surface of the top coat layer is prevented, and the contrast is improved. An object is to provide a transflective liquid crystal display panel of the type.

The above object of the present invention can be achieved by the following configurations. That is, in the invention of the transflective liquid crystal display panel according to claim 1, a slit is provided between the transmissive part and the reflective part provided at each position partitioned by the signal lines and the scanning lines arranged in a matrix. A first substrate comprising: a pixel electrode having a reflector; a reflector provided in the reflector; and an auxiliary capacitance line provided below the reflector;
A second substrate having a top coat layer provided at a position corresponding to the reflective portion and an orientation regulating means provided at least at a position corresponding to the transmissive portion, and a common electrode formed on the surface;
A vertical alignment layer stacked on the first substrate and the second substrate;
A liquid crystal layer having a negative dielectric anisotropy disposed between the two substrates;
In a transflective liquid crystal display panel having
The auxiliary capacitance line extends from a position corresponding to the reflective portion to a position beyond the position corresponding to the topcoat layer.

  According to a second aspect of the present invention, in the transflective liquid crystal display panel according to the first aspect, the pixel electrode and the reflection plate are provided on an interlayer film provided over the entire display region of the first substrate. The storage capacitor line is provided below the interlayer film.

  The invention according to claim 3 is the transflective liquid crystal display panel according to claim 2, characterized in that the reflector is provided on the lower surface of the pixel electrode.

  According to a fourth aspect of the present invention, in the transflective liquid crystal display panel according to any one of the first to third aspects, the alignment restricting means includes a protrusion provided below the vertical alignment film. Features.

  According to a fifth aspect of the present invention, in the transflective liquid crystal display panel according to any one of the first to third aspects, the orientation restricting means comprises a slit provided in the common electrode. .

  According to a sixth aspect of the present invention, in the transflective liquid crystal display panel according to the fourth or fifth aspect, the pixel electrode of the transmissive portion is divided into a plurality of sections by slits.

  Furthermore, the invention according to claim 7 is the transflective liquid crystal display panel according to any one of claims 1 to 6, wherein the pixel electrode of the transmissive portion does not overlap the signal line in plan view. And overlapping along the scanning line.

  By providing the above-described configuration, the present invention has the following excellent effects. That is, according to the first aspect of the present invention, the auxiliary capacitance line extends from the position corresponding to the reflective portion to the slit beyond the position corresponding to the topcoat layer. Even when the reflector is melted from the design value due to variations in etching conditions during the manufacture of the reflector, the light from the backlight provided on the back surface of the first substrate is stored in the auxiliary capacitor. Since the light is shielded by the lines, it does not leak from the reflection portion, and the MVA transflective liquid crystal display panel with a good display image quality is obtained without reducing the contrast.

  According to the invention of claim 2, since the surface of the interlayer film provided on the first substrate is flattened, the surface of the pixel electrode and the reflector provided on the surface can also be flattened. An MVA transflective liquid crystal display panel with a good display image quality is obtained with less disturbance of alignment of liquid crystal molecules, less light leakage, and high contrast.

  According to the invention of claim 3, the reflecting plate is made of a metal such as aluminum or silver, but since the reflecting plate is not in direct contact with the liquid crystal layer, the deterioration of the liquid crystal layer is reduced. A long-life MVA transflective liquid crystal display panel can be obtained while exhibiting the effects of the present invention.

  Further, according to the inventions according to claims 4 and 5, an MVA transflective liquid crystal display panel having a wide viewing angle and a fast response speed can be obtained by an orientation regulating means having a simple configuration.

  According to the invention of claim 6, even if the area of the pixel electrode of the transmissive part is large, the pixel electrode is divided into a plurality of areas so as to have a desired area, and the orientation regulating means is provided for each of the divided pixel electrodes. Therefore, the disorder of the orientation of the liquid crystal molecules can be reduced over the entire transmissive portion, so that an MVA transflective liquid crystal display panel having a wide viewing angle, high contrast and excellent display image quality can be obtained.

  Further, in the MVA type transflective liquid crystal display panel as in the present invention, there is a risk of light leakage when no electric field is applied, even though the scanning lines, signal lines, and pixel electrodes do not overlap in the plan view. There is no. However, since the voltage applied to the scanning line changes greatly, it affects the liquid crystal molecules. Therefore, the alignment of the liquid crystal molecules may be disturbed in the vicinity of the scanning line in the transmission part, and light leakage may occur. According to the invention according to item 7, since the electric field generated by the scanning line is blocked by the pixel electrode, the liquid crystal molecules are not affected, the light leakage at the transmission portion is small, the contrast is high, and the display image quality is excellent. A transflective liquid crystal display panel is obtained.

  The best mode for carrying out the present invention will be described below with reference to the examples and the drawings. However, the examples shown below are not intended to limit the present invention to those described herein. The present invention can be equally applied to various modifications without departing from the technical idea shown in the claims.

  A transflective liquid crystal display panel 10 according to an embodiment will be described with reference to FIGS. FIG. 1 is a plan view of one pixel of the MVA transflective liquid crystal display panel seen through the second substrate, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. However, in FIG. 1, in order to emphasize the auxiliary capacitance line and the top coat layer, the layer is ignored, the boundary of the auxiliary capacitance line is represented by a thick solid line, and the boundary of the top coat layer is represented by a thick broken line. The same components as those of the conventional MVA transflective liquid crystal display panel 70 shown in FIGS. 5 and 6 are given the same reference numerals, and detailed descriptions thereof are omitted.

  The MVA transflective liquid crystal display panel 10 is different from the conventional MVA transflective liquid crystal display panel 70 shown in FIGS. 5 and 6 in that the auxiliary capacitance line 21 is connected to the reflector 18. It extends further from the lower part of the top coat layer 27, extends beyond the position corresponding to the inclined surface 27 a of the top coat layer 27, and extends to a position corresponding to the lower part of the slit 33 provided in the pixel electrode 19.

  That is, in the conventional MVA-type transflective liquid crystal display panel 70, the auxiliary capacitance line 21 is formed from the position corresponding to the reflector 18 below the interlayer film 17 as shown by the broken line in FIG. It is provided so as not to protrude to the side, and so as not to protrude from the position corresponding to the top coat layer 27 of the second substrate to the transmission part 16 side. On the other hand, in the MVA-type transflective liquid crystal display panel 10 of the embodiment, the auxiliary capacitance line 21 is positioned below the interlayer film 17 and corresponding to the reflector 18 as shown by a broken line in FIG. It is provided so as to protrude from the transparent portion 16 side to the transparent portion 16 side from a position corresponding to the top coat layer 27 of the second substrate. In the MVA type transflective liquid crystal display panel 10 of this embodiment, the boundary of the auxiliary capacitance line 21 on the transmissive part 16 side is at a position corresponding to the slit 33 provided in the pixel electrode 19 as shown in FIG. It extends to.

  By adopting such a configuration, even when the reflector 18 is etched more than the design value due to the etching conditions during manufacturing, the reflector 18 is located below the interlayer film 17 from the position corresponding to the reflector 18. Since it is provided so as to protrude to the transmission part 16 side and also to protrude from the position corresponding to the top coat layer 27 of the second substrate to the transmission part 16 side, light from a backlight (not shown) In this case, since the light shielded by the reflecting plate 18 is shielded by the storage capacitor line 21, light leakage does not occur.

  Therefore, according to the MVA transflective liquid crystal display panel 10 of the embodiment, light leakage from the inclined surface 27a of the topcoat layer 27 as in the conventional MVA transflective liquid crystal display panel may occur. Therefore, an MVA transflective liquid crystal display panel with improved display quality and improved contrast can be obtained.

  In the MVA transflective liquid crystal display panel 10 of the embodiment, the reflection plate 18 and the pixel electrode 19 in the reflection unit 15 are not in contact with the reflection plate and the pixel electrode of the adjacent pixel, and the scanning line 12 and Similarly to the signal line 13, it is formed so as to overlap slightly in order to prevent light leakage, and the pixel electrode 19 on the transmissive part 16 side does not contact the pixel electrode and the reflection plate of the adjacent pixel and the scanning line 12. In the MVA liquid crystal display panel, light is transmitted through the liquid crystal layer as long as the liquid crystal molecules are aligned vertically without an electric field applied to the liquid crystal molecules. There is no.

  Therefore, in the MVA liquid crystal display panel 10 of the embodiment, even if the slit 33 provided in the pixel electrode 19 and the pixel electrode 19b of the transmissive portion 16 and the scanning line and the signal line do not overlap in plan view, Since this portion is provided with a vertical alignment film, it does not originally transmit light. Therefore, at least the pixel electrode 19b of the transmission part 16 and the scanning line and the signal line need not overlap in plan view. When such a configuration is adopted, the aperture ratio of the transmissive portion is improved, so that a bright MVA transflective liquid crystal display panel can be obtained.

  However, since the voltage applied to the scanning line 12 has a large amplitude, the alignment state of the liquid crystal molecules may be affected by the voltage applied to the scanning line 12, so that at least the pixel electrode 19b of the transmissive portion 16 is scanned. The part along the line 12 should be overlapped with the scanning line in plan view. Moreover, although the example which used the rectangular thing was shown as the pixel electrode 19b of the permeation | transmission part 16, in order to reduce disorder of the orientation state of a liquid crystal molecule, it is set as the shape which cut off the corner | angular of a rectangle, or circular shape. However, in this case as well, it is preferable that at least a portion along the scanning line 12 partially overlaps the scanning line in plan view.

  In the MVA transflective liquid crystal display panel 10 according to the example, the pixel electrode 19 is divided into the pixel electrode 19a of the reflection unit 15 and the pixel electrode 19b of the transmission unit 16 by the slit 33. When the transflective liquid crystal display panel is actually used, there are more opportunities to turn on the backlight and use the transmissive portion 16. Therefore, the area of the pixel electrode 19b of the transmissive part 16 may be made larger than the area of the pixel electrode 19a of the reflective part 15. In such a case, in order to prevent the alignment of the liquid crystal molecules from being disturbed throughout the transmissive part 16, the pixel electrode 19b of the transmissive part is partitioned into a plurality of slits, and an alignment regulating means is provided for each partition. It can also be provided.

  Further, the MVA-type transflective liquid crystal display panel 10 according to the example shows an example in which a cross-shaped protrusion is provided in the transmissive portion and an inverted Y-shaped protrusion is provided in the reflective portion as the alignment regulating means. However, the present invention is not limited to this, and the protrusions may be bar-shaped or bullet-shaped, or the common electrode may be provided with a slit as an orientation regulating means, as disclosed in Patent Document 2 above.

FIG. 4 is a plan view of one pixel that is seen through a second substrate of an MVA-type transflective liquid crystal display panel according to an embodiment. It is AA sectional drawing of FIG. FIG. 3A is a perspective view showing a schematic structure of a conventional MVA-type transflective liquid crystal display panel, and FIG. 3B is a liquid crystal tilt state when an electric field is applied to the liquid crystal in the liquid crystal layer. FIG. It is BB sectional drawing of Fig.3 (a). FIG. 6 is a plan view of one pixel that is seen through a second substrate of a conventional transflective liquid crystal display panel in which a top coat layer for adjusting a cell gap is provided on the second substrate side. It is CC sectional drawing of FIG.

Explanation of symbols

10, 50, 70 MVA transflective liquid crystal display panel 11, 25 Glass substrate 12 Scan line 13 Signal line 14 Insulating film 15 Reflector 16 Transmitter 17 Interlayer film 18 Reflectors 19, 19a, 19b Pixel electrode 20 Contact Hole 21 auxiliary capacitance line 26 color filter layer 27 top coat layer 27a inclined surface 29 of top coat layer liquid crystal 31, 32 protrusion 33 slit 34 line

Claims (7)

A pixel electrode having a slit between a transmissive portion and a reflective portion provided at each position partitioned by signal lines and scanning lines arranged in a matrix, a reflective plate provided in the reflective portion, and A first substrate provided with an auxiliary capacitance line provided below the reflector;
A second substrate having a top coat layer provided at a position corresponding to the reflective portion and an orientation regulating means provided at least at a position corresponding to the transmissive portion, and a common electrode formed on the surface;
A vertical alignment layer stacked on the first substrate and the second substrate;
A liquid crystal layer having a negative dielectric anisotropy disposed between the two substrates;
In a transflective liquid crystal display panel having
The transflective liquid crystal display panel, wherein the auxiliary capacitance line extends from a position corresponding to the reflective portion to a position beyond the position corresponding to the topcoat layer.   2. The pixel electrode and the reflection plate are provided on an interlayer film provided over the entire display area of the first substrate, and the auxiliary capacitance line is provided below the interlayer film. A transflective liquid crystal display panel as described in 1.   The transflective liquid crystal display panel according to claim 2, wherein the reflection plate is provided on a lower surface of the pixel electrode.   The transflective liquid crystal display panel according to any one of claims 1 to 3, wherein the alignment regulating means includes a protrusion provided under the vertical alignment film.   The transflective liquid crystal display panel according to any one of claims 1 to 3, wherein the orientation restricting means includes a slit provided in the common electrode.   6. The transflective liquid crystal display panel according to claim 4, wherein the pixel electrode of the transmissive portion is divided into a plurality of parts by slits.   7. The transflective device according to claim 1, wherein the pixel electrode of the transmissive portion does not overlap the signal line in plan view, but overlaps along the scanning line. Type LCD panel.

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