JP2009258241A - Liquid crystal display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device with improved resistance to pressing and with superior display quality. <P>SOLUTION: This liquid crystal display device comprising an active area consisting of a plurality of pixels further comprises; an array substrate 200, comprising a pixel electrodes 230 arranged on each of pixels; a projecting body 500 arranged on a wiring Y and formed of an electrically conductive material; and an organic insulating film 246 arranged on the projecting body; an opposite substrate 300 comprising opposite electrodes 330 opposing each of the pixel electrodes; a first columnar spacer SP1 contacting a portion on which the projecting body 500 and the organic insulating film 246 of the array substrate 200 are arranged via orientation films 250 and 350; and a second columnar spacer SP2 facing a portion, on which the projecting body 500 and the organic insulating film 246 are not arranged on the wire Y and forming a gap; and a liquid crystal layer 400, which is held in between the array substrate 200 and the opposite substrate 300. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device including columnar spacers that support a gap between a pair of substrates.

  A typical liquid crystal display device as a flat display device is used in various fields as a display device for OA equipment such as a personal computer and a television by utilizing features such as light weight, thinness, and low power consumption. In recent years, liquid crystal display devices are also used as mobile terminal devices such as mobile phones, display devices such as car navigation devices and game machines.

  The liquid crystal display device includes a liquid crystal display panel configured by holding a liquid crystal layer between an array substrate and a counter substrate bonded together with a sealing material.

  In recent years, liquid crystal display panels have a tendency to narrow the gap in order to meet demands for improving response speed and widening the viewing angle. In addition, demands for thinning liquid crystal display devices are increasing, and the substrate tends to be thinned. For this reason, it is necessary to ensure sufficient resistance to pressing. In particular, when the product specification is a touch panel specification, higher resistance to pressing is required.

  The resistance to pressing is improved by increasing the density of the columnar spacers arranged inside the liquid crystal display panel, but when subjected to an impact in a low temperature environment, when the liquid crystal display panel returns after being bent rapidly, The liquid crystal layer cannot follow, and a gap may be generated in the liquid crystal layer, resulting in a display defect.

  To deal with such a problem, for example, according to the cited document 1, a spacer having substantially the same height is provided on the color filter substrate, and a part of the spacers 1b is provided at the intersection of the drain line and the counter voltage signal line on the TFT substrate. Are in contact with each other, and a technique for maintaining a gap between the TFT substrate and the color filter substrate is disclosed. In particular, in this cited document 1, another spacer 1c is provided on the drain line, and a gap is generated between the spacer and the TFT substrate by the thickness of the counter voltage signal line, and liquid crystal exists in the gap. It is configured as follows.

Such a spacer 1c is usually not in contact with the TFT substrate, but when a force perpendicular to both substrates is applied from the outside, the spacer 1b is crushed and elastically deformed, and the TFT substrate and the color filter substrate are The gap narrows, and the spacer 1c also contacts the TFT substrate and receives the load.
Japanese Patent No. 3680730

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a liquid crystal display device capable of improving the pressure resistance.

A liquid crystal display device according to a first aspect of the present invention provides:
A liquid crystal display device having an active area composed of a plurality of pixels,
A first substrate comprising: a pixel electrode disposed on each of the pixels; a convex body disposed on a wiring and formed of a conductive material; and an organic insulating film disposed on the convex body; ,
A counter electrode facing each of the pixel electrodes, a first columnar spacer in contact with the organic insulating film through an alignment film, and a portion where the convex body and the organic insulating film of the wiring are not disposed And a second columnar spacer that forms a gap, and a second substrate,
A liquid crystal layer held between the first substrate and the second substrate;
It is characterized by having.

A liquid crystal display device according to a second aspect of the present invention provides:
On the insulating substrate, a first substrate comprising a thick film portion, a thin film portion having a thickness thinner than the thick film portion, and an intermediate portion thinner than the thick film portion and thicker than the thin film portion,
A first columnar spacer that contacts the thick film portion of the first substrate; a second columnar spacer that faces the thin film portion and forms a first gap; and a second columnar spacer that faces the intermediate portion and is smaller than the first gap. A second substrate comprising a third columnar spacer forming a two gap;
A liquid crystal layer held between the first substrate and the second substrate;
It is characterized by having.

  According to this invention, the cell gap that holds the liquid crystal layer between the first substrate and the second substrate is supported by the first columnar spacer that contacts the portion where the convex body and the organic insulating film are laminated on the first substrate. The first substrate and the second columnar spacer are opposed to each other with a gap corresponding to the thickness of the convex body and the organic insulating film.

  In such a state, when an impact is applied from a direction perpendicular to both substrates, the first columnar spacer is crushed and elastically deformed, the cell gap between the first substrate and the second substrate is narrowed, and the second columnar shape is reduced. The spacer contacts the first substrate and receives the load. For this reason, it becomes possible to improve press tolerance.

  Further, unlike an insulating film formed of an inorganic material, the organic insulating film can be easily thickened without requiring a long manufacturing time. Further, the thickness of the organic insulating film can be freely controlled. For this reason, it is possible to easily adjust the gap between the second columnar spacer and the first substrate according to the required pressure resistance without reducing the manufacturing yield, depending on the presence or absence of the organic insulating film. Become.

  Furthermore, by adding a third columnar spacer that forms a gap smaller than the gap between the second columnar spacer and the first substrate, the first columnar spacer is crushed when an impact is applied from a direction perpendicular to both substrates. As a result, the cell gap between the first substrate and the second substrate is narrowed, and first, the third columnar spacer comes into contact with the first substrate to receive the load. If the third columnar spacer does not receive the load due to contact with the first substrate, the third columnar spacer is crushed and elastically deformed, and the cell gap between the first substrate and the second substrate is further narrowed, The second columnar spacer can contact the first substrate to receive the load. Thereby, it becomes possible to further improve the pressure resistance.

  In addition, the generation of voids in the liquid crystal layer due to impact in a low temperature environment is suppressed, and the occurrence of display defects can be suppressed.

  Hereinafter, a display device, particularly a liquid crystal display device according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the liquid crystal display device includes a liquid crystal display panel 100 having a substantially rectangular flat plate shape. That is, the liquid crystal display panel 100 includes a pair of substrates, that is, an array substrate (first substrate) 200 and a counter substrate (second substrate) 300, a liquid crystal layer 400 held between the array substrate 200 and the counter substrate 300, It is constituted by.

  The array substrate 200 and the counter substrate 300 are bonded together by a sealing material 110, and a predetermined cell gap for holding the liquid crystal layer 400 is formed therebetween. The liquid crystal layer 400 is formed of a liquid crystal composition sealed in a cell gap between the array substrate 200 and the counter substrate 300.

  The liquid crystal display panel 100 includes a substantially rectangular active area 120 that displays an image on the inner side surrounded by the sealing material 110. The active area 120 includes a plurality of pixels PX arranged in a matrix.

  In the active area 120, the array substrate 200 extends along the column direction of the plurality of gate lines Y (1, 2, 3,..., M) extending along the row direction of the pixels PX. A plurality of source lines X (1, 2, 3,..., N), a switching element 220 arranged at the intersection of the source line X and the gate line Y in each pixel PX, and switching arranged in each of the pixels PX. And a pixel electrode 230 connected to the element 220.

  The gate line Y and the source line X are arranged so as to cross each other through an insulating layer. The switching element 220 is configured by a thin film transistor (TFT) including a semiconductor layer formed of, for example, amorphous silicon or polysilicon.

  The gate electrode 222 of the switching element 220 is connected to the gate line Y (or the gate electrode 222 is formed integrally with the gate line Y). The source electrode 225 of the switching element 220 is connected to the source line X (or the source 225 is formed integrally with the source line X). The drain electrode 227 of the switching element 220 is connected to the pixel electrode 230.

  The counter substrate 300 includes a counter electrode 330 that faces each of the plurality of pixel electrodes 230 in the active area 120.

  In addition, the liquid crystal display panel 100 includes a connection part 131 disposed on the outer peripheral part 130 located outside the active area 120. The connection portion 131 can be connected to a driving IC chip or a flexible wiring board that functions as a signal supply source. In the example shown in FIG. 1, the connecting portion 131 is formed in the extending portion 200 </ b> A of the array substrate 200 that extends outward from the end portion 300 </ b> A of the counter substrate 300.

  Each of the gate lines Y (1, 2, 3,..., M) arranged in the active area 120 is connected to the connection part 131 via the outer peripheral part 130. Similarly, each of the source lines X (1, 2, 3,..., N) is connected to the connection portion 131 via the outer peripheral portion 130.

  Next, the structures of the array substrate 200 and the counter substrate 300 will be described in more detail.

As shown in FIG. 2, the array substrate 200 is formed using an insulating substrate 210 having light transmissivity such as glass. The gate electrode 222 of the switching element 220 is disposed on the insulating substrate 210 together with the gate line Y and the like. The gate electrode 222 is covered with a gate insulating film 240. The gate insulating film 240 is formed of, for example, silicon nitride (Si ₃ N ₄ ).

The semiconductor layer 242 of the switching element 220 is disposed on the gate insulating film 240. The semiconductor layer 242 is in contact with the source electrode 225 and the drain electrode 227 of the switching element 220. These source electrode 225 and drain electrode 227 are covered with a passivation film 244. The passivation film 244 is made of, for example, silicon nitride (Si ₃ N ₄ ).

  This passivation film 244 is covered with an organic insulating film 246. The organic insulating film 246 is formed, for example, by applying an organic material having a relatively low viscosity such as a liquid (for example, a thermosetting resin material or a photosensitive resin material), and then heating, electromagnetic wave irradiation, or the like. The surface can be formed by performing a curing process on the surface.

  The pixel electrode 230 is disposed on the organic insulating film 246 so as to correspond to each pixel PX. The pixel electrode 230 is electrically connected to the drain electrode 227 of the switching element 220 through a contact hole formed in the passivation film 244 and the organic insulating film 246.

  In a transmissive liquid crystal display panel that selectively transmits backlight and displays an image, the pixel electrode 230 transmits light such as indium tin oxide (ITO) or indium zinc oxide (IZO). It is formed of a conductive material having a property. In a reflective liquid crystal display panel that selectively reflects external light to display an image, the pixel electrode 230 is formed of a light-reflective conductive material such as aluminum (Al) or molybdenum (Mo). Has been.

  The counter substrate 300 is formed using an insulating substrate 310 having optical transparency such as glass.

  In the color display type liquid crystal display device, the liquid crystal display panel 100 displays a plurality of types of pixels, for example, a red pixel PXR that displays red (R), a green pixel PXG that displays green (G), and blue (B). It has a blue pixel PXB.

  In the embodiment shown in FIG. 2, the counter substrate 300 is a color filter layer arranged for each pixel PX on one main surface (surface facing the liquid crystal layer) of the insulating substrate 310 in the active area 120. 320 (R, G, B). These color filter layers 320 (R, G, B) are formed of colored resins colored red (R), green (G), and blue (B), respectively.

  That is, the counter substrate 300 includes a red color filter layer 320R made of a resin colored so as to transmit light having a red main wavelength corresponding to the red pixel PXR on the insulating substrate 310, and corresponds to the green pixel PXG. And a green color filter layer 320G made of a resin colored so as to transmit light having a green dominant wavelength, and further colored so as to transmit light having a blue dominant wavelength corresponding to the blue pixel PXB. A blue color filter layer 320B made of resin is provided. Such a color filter layer 320 (R, G, B) may be provided on the array substrate side.

  The counter electrode 330 is disposed on the color filter layer 320 so as to face the plurality of pixels PX in the active area 120. The counter electrode 330 is formed of a light-transmitting conductive material such as ITO or IZO.

  The counter substrate 300 further includes columnar spacers SP for forming and maintaining a cell gap with the array substrate 200. This columnar spacer SP can be formed, for example, by patterning a photosensitive resin material. All the columnar spacers SP are formed at substantially the same height.

  The surfaces of the array substrate 200 and the counter substrate 300 are covered with alignment films 250 and 350 for controlling the alignment of the liquid crystal molecules contained in the liquid crystal layer 400, respectively.

  For the reflective liquid crystal display panel, an optical element 360 is provided on the outer surface of the counter substrate 300. For the transmissive liquid crystal display panel, optical elements 260 and 360 are provided on the outer surfaces of the array substrate 200 and the counter substrate 300, respectively. These optical elements 260 and 360 include a polarizing plate whose polarization direction is set in accordance with the characteristics of the liquid crystal layer 400.

  By the way, in the active area 120, the columnar spacers SP described above are a mixture of those that are in contact with the array substrate 200 via the alignment film and those that are not in contact. That is, the columnar spacer SP is disposed so as to face the wiring W such as the source line X and the gate line Y that do not overlap the pixel electrode 230. In the array substrate 200, concave portions and convex portions are formed on the wiring W, and some columnar spacers SP are in contact with the convex portions in the array substrate 200.

"Basic concept"
First, the basic concept will be described. In the drawings corresponding to the following description, only main parts are shown.

  FIG. 3 shows an example in which the array substrate 200 has a convex portion CV on the wiring W. The first columnar spacer SP1 is in contact with the convex portion CV and supports a cell gap for holding the liquid crystal layer 400 between the array substrate 200 and the counter substrate 300. The second columnar spacer SP2 faces a portion where the convex portion CV on the wiring W is not disposed, and a gap G corresponding to the thickness of the convex portion CV is formed between the second columnar spacer SP2 and the wiring W. .

  The convex portion CV has a conductive material (for example, the same material as the gate line Y, the same material as the source line X, the same material as the semiconductor layer 242) and an insulating material (for example, gate insulation) locally disposed on the wiring W. The same material as the film 240, the same material as the passivation film 244, the same material as the organic insulating film 246, or the like can be used. The height of the convex portion CV can be freely adjusted by changing various film thicknesses and combinations of the conductive material and the insulating material.

  In the liquid crystal display panel having such a structure, when an impact that narrows the cell gap is applied to the array substrate 200 and the counter substrate 300, as shown in FIG. The one columnar spacer SP1 is crushed and elastically deformed, and the second columnar spacer SP2 contacts the array substrate 200 (that is, contacts the wiring W) to receive the load.

  FIG. 5 shows an example in which the array substrate 200 has a recess CC on the wiring W. The first columnar spacer SP1 is in contact with the array substrate 200 and supports the cell gap. The second columnar spacer SP2 faces the concave portion CC on the wiring W, and a gap G corresponding to the depth of the concave portion CC is formed between the second columnar spacer SP2 and the wiring W.

  The recess CC has a conductive material (for example, the same material as the gate line Y, the same material as the source line X, the same material as the semiconductor layer 242) and the insulating material (for example, the gate insulating film 240 and the like) stacked on the wiring W. The same material, the same material as the passivation film 244, the same material as the organic insulating film 246, or the like) can be formed by providing an opening. The depth of the concave portion CC can be freely adjusted by variously changing the film thicknesses of the conductive material and the insulating material and combinations of openings to be provided.

  In the liquid crystal display panel having such a structure, when an impact that narrows the cell gap is applied to the array substrate 200 and the counter substrate 300, the first contact with the array substrate 200 as shown in FIG. The one columnar spacer SP1 is crushed and elastically deformed, and the second columnar spacer SP2 contacts the array substrate 200 (that is, contacts the wiring W) to receive the load.

  Based on such a basic concept, even if the load cannot be received due to the elastic deformation of the first columnar spacer SP1, the load that cannot be received due to the second columnar spacer SP2 contacting the array substrate 200 can be received. it can. As a matter of course, the second columnar spacer SP can not only contact the array substrate 200 but also be elastically deformed to receive the load.

  For this reason, it becomes possible to improve the press tolerance in the liquid crystal display panel 100. In addition, the generation of voids in the liquid crystal layer due to impact in a low temperature environment is suppressed, and the occurrence of display defects can be suppressed.

  Note that the example shown in FIG. 3 and the example shown in FIG. 5 may be combined, and in this case, the pressure resistance can be further improved.

<< First Embodiment >>
Next, a first embodiment that combines the basic concepts described above will be described.

  7 and 8 show an example in which the columnar spacer SP is opposed to the gate line Y that is the wiring W. FIG. On the gate line Y, a convex body 500 made of a conductive material is disposed. Here, the convex body 500 is formed by stacking a first layer 510 formed of the same semiconductor material as the semiconductor layer 242 and a second layer 520 formed of the same conductive material as the source line X. Is formed. The height of the convex body 500 substantially corresponds to the total thickness of the first layer 510 and the second layer 520.

  More specifically, the gate insulating film 240 is interposed between the gate line Y and the first layer 510. Further, the convex body 500 is covered with a passivation film 244 and an organic insulating film 246.

  Similarly, on the gate line Y, a portion where neither the convex body 500 nor the organic insulating film 246 is arranged is formed as a recess 600. Here, an opening 246H is formed in the organic insulating film 246 corresponding to the recess 600, and the gate insulating film 240 and the passivation film 244 are disposed on the gate line Y. However, the recess 600 has a larger depth. In order to achieve this, a similar opening may be provided in the gate insulating film 240 and the passivation film 244.

  The surface of the array substrate 200 is covered with an alignment film 250.

  On the other hand, the counter substrate 300 includes a color filter layer 320 and a counter electrode 330. Further, the counter substrate 300 includes a first columnar spacer SP1 that contacts the portion where the convex body 500 and the organic insulating film 246 of the array substrate 200 are disposed via the alignment films 250 and 350, and the convex body of the gate line Y. 500 and the 2nd columnar spacer SP2 which opposes the part (recess 600) in which the organic insulating film 246 is not arrange | positioned.

  The first columnar spacer SP1 and the second columnar spacer SP2 are formed at substantially the same height. Therefore, the second columnar spacer SP <b> 2 forms a gap G <b> 1 corresponding to the sum of the height of the convex body 500 and the film thickness equivalent of the organic insulating film 246 between the second columnar spacer SP <b> 2. That is, in the normal state, the liquid crystal material is interposed between the second columnar spacer SP2 and the array substrate 200.

  According to the first embodiment having such a configuration, the first columnar spacer SP1 that contacts the portion where the convex body 500 and the organic insulating film 246 are stacked in the array substrate 200 is arranged between the array substrate 200 and the counter substrate 300. The cell gap holding the liquid crystal layer 400 is supported. Further, the array substrate 200 and the second columnar spacer SP2 face each other with a gap corresponding to the thickness of the convex body 500 and the organic insulating film 246.

  In such a state, when an impact is applied from a direction perpendicular to both substrates, the first columnar spacer SP1 is crushed and elastically deformed, the cell gap between the array substrate 200 and the counter substrate 300 is narrowed, and the second The columnar spacer SP2 contacts the array substrate 200 and receives the load. For this reason, it becomes possible to improve press tolerance.

  Further, unlike the insulating film formed of an inorganic material, the organic insulating film 246 can be easily thickened without requiring a long manufacturing time. Further, the thickness of the organic insulating film 246 can be freely controlled. For this reason, it is possible to easily adjust the gap between the second columnar spacer SP2 and the array substrate 200 according to the required pressing resistance without reducing the manufacturing yield, depending on the presence or absence of the organic insulating film 246. It becomes possible.

<< Second Embodiment >>
Next, a second embodiment that combines the basic concepts described above will be described.

  9 and 10 show an example in which the columnar spacer SP is opposed to the gate line Y which is the wiring W, as in the first embodiment. On the gate line Y, a convex body 500 made of a conductive material is disposed. The structure of the convex body 500 is the same as that of the first embodiment, and detailed description thereof is omitted.

  Similarly, on the gate line Y, a portion where neither the convex body 500 nor the organic insulating film 246 is arranged is formed as a first recess 610. Similarly, a convex body 500 is disposed on the gate line Y, and a portion where the organic insulating film 246 is not disposed is formed as a second recess 620.

  Here, an opening 246H is formed in the organic insulating film 246 corresponding to the first recess 610 and the second recess 620, and the gate insulating film 240 and the passivation film 244 are disposed on the gate line Y. In order to obtain a greater depth as the recess 600, a similar opening may be provided in the gate insulating film 240 and the passivation film 244.

  The surface of the array substrate 200 is covered with an alignment film 250.

  On the other hand, in addition to the color filter layer 320 and the counter electrode 330, the counter substrate 300 is in contact with a portion where the convex body 500 and the organic insulating film 246 of the array substrate 200 are disposed via the alignment films 250 and 350. A columnar spacer SP1, a second columnar spacer SP2 facing the first recess 610 on the gate line Y, and a third columnar spacer SP3 facing the second recess 620 on the gate line Y are provided. Yes.

  The first columnar spacer SP1, the second columnar spacer SP2, and the third columnar spacer SP3 are formed at substantially the same height. Therefore, the second columnar spacer SP <b> 2 forms a gap G <b> 1 corresponding to the sum of the height of the convex body 500 and the film thickness equivalent of the organic insulating film 246 between the second columnar spacer SP <b> 2. In addition, the third columnar spacer SP3 forms a gap G2 corresponding to the sum of the thickness of the organic insulating film 246 and the gate line Y. Of course, the gap G1 is larger than the gap G2.

  That is, in a normal state, the liquid crystal material is interposed between the second columnar spacer SP2 and the third columnar spacer SP3 and the array substrate 200.

  According to the second embodiment having such a configuration, the first columnar spacer SP1 that contacts the portion where the convex body 500 and the organic insulating film 246 are stacked on the array substrate 200 is arranged between the array substrate 200 and the counter substrate 300. The cell gap holding the liquid crystal layer 400 is supported. The array substrate 200 and the second columnar spacer SP2 are opposed to each other with a gap corresponding to the thickness of the convex body 500 and the organic insulating film 246, and the array substrate 200 and the third columnar spacer SP3 are opposed to the organic insulating film 246. It is opposed with a gap corresponding to the thickness.

  In such a state, when an impact is applied from a direction perpendicular to both substrates, the first columnar spacer SP1 is crushed and elastically deformed, and the cell gap between the array substrate 200 and the counter substrate 300 is narrowed. In addition, the third columnar spacer SP3 contacts the array substrate 200 to receive the load. When the third columnar spacer SP3 cannot be fully received by contact with the array substrate 200, the third columnar spacer SP3 is crushed and elastically deformed, and the cell gap between the array substrate 200 and the counter substrate 300 is further increased. As a result, the second columnar spacer SP2 can contact the array substrate 200 to receive the load. Thereby, it becomes possible to further improve the pressure resistance.

  According to the first embodiment and the second embodiment described above, it is possible to improve the resistance to a pressing force that narrows the cell gap, and it is possible to display not only in a normal temperature environment but also in a low temperature environment. It becomes possible to maintain the quality.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the spirit of the invention in the stage of implementation. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine the component covering different embodiment suitably.

FIG. 1 schematically shows a configuration of a liquid crystal display panel of a liquid crystal display device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view schematically showing the configuration of the liquid crystal display panel shown in FIG. FIG. 3 is a schematic sectional view of a liquid crystal display panel for explaining the basic concept of the present invention. FIG. 4 is a schematic cross-sectional view for explaining a state in which a pressing force is applied to the liquid crystal display panel shown in FIG. FIG. 5 is a schematic sectional view of a liquid crystal display panel for explaining another basic concept of the present invention. FIG. 6 is a schematic cross-sectional view for explaining a state in which a pressing force is applied to the liquid crystal display panel shown in FIG. FIG. 7 is a plan view schematically showing the structure of the liquid crystal display panel according to the first embodiment. FIG. 8 is a cross-sectional view schematically showing the structure of the liquid crystal display panel shown in FIG. FIG. 9 is a plan view schematically showing the structure of the liquid crystal display panel according to the second embodiment. FIG. 10 is a cross-sectional view schematically showing the structure of the liquid crystal display panel shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Liquid crystal display panel 120 ... Active area PX ... Pixel W ... Wiring Y ... Gate line X ... Source line 200 ... Array substrate 210 ... Insulating substrate 220 ... Switching element 230 ... Pixel electrode 240 ... Gate insulating film 242 ... Semiconductor layer 244 ... Passivation film 246 ... Organic insulating film 250 ... Alignment film 300 ... Counter substrate 310 ... Insulating substrate 320 ... Color filter layer 330 ... Counter electrode 350 ... Alignment film 400 ... Liquid crystal layer SP ... Columnar spacer SP1 ... First columnar spacer SP2 ... Second Columnar spacer SP3 ... 3rd columnar spacer CV ... convex portion CC ... concave portion 500 ... convex body 510 ... first layer 520 ... second layer 600 ... concave portion 610 ... first concave portion 620 ... second concave portion

Claims (7)

A liquid crystal display device having an active area composed of a plurality of pixels,
A first substrate comprising: a pixel electrode disposed on each of the pixels; a convex body disposed on a wiring and formed of a conductive material; and an organic insulating film disposed on the convex body; ,
On the wiring, a counter electrode facing each of the pixel electrodes, a first columnar spacer in contact with a portion where the convex body and the organic insulating film of the first substrate are disposed via an alignment film, and A second substrate provided with a second columnar spacer facing the portion where the convex body and the organic insulating film are not disposed and forming a gap;
A liquid crystal layer held between the first substrate and the second substrate;
A liquid crystal display device comprising:   The second substrate further includes a third columnar spacer that forms a gap facing the portion where the convex body is disposed on the wiring and the organic insulating film is not disposed. Item 2. A liquid crystal display device according to item 1.   The liquid crystal display device according to claim 1, wherein the wiring is a gate line extending along a row direction of the pixels.   3. The liquid crystal display according to claim 2, wherein the convex body is formed by laminating the same conductive material and semiconductor material as the source line extending along the column direction of the pixels. apparatus.   The liquid crystal display device according to claim 1, wherein the first columnar spacer and the second columnar spacer are formed at substantially the same height.   The liquid crystal display device according to claim 2, wherein the third columnar spacer is formed at substantially the same height as the first columnar spacer and the second columnar spacer. On the insulating substrate, a first substrate comprising a thick film portion, a thin film portion having a thickness thinner than the thick film portion, and an intermediate portion thinner than the thick film portion and thicker than the thin film portion,
A first columnar spacer that contacts the thick film portion of the first substrate; a second columnar spacer that faces the thin film portion and forms a first gap; and a second columnar spacer that faces the intermediate portion and is smaller than the first gap. A second substrate comprising a third columnar spacer forming a two gap;
A liquid crystal layer held between the first substrate and the second substrate;
A liquid crystal display device comprising:

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