JP5593593B2 - Liquid crystal panel and display device - Google Patents

Description

  The present invention relates to a liquid crystal panel and a display device, and more particularly to a liquid crystal panel having a structure in which a columnar spacer is sandwiched between two substrates and a display device provided with the liquid crystal panel.

  The liquid crystal panel has a configuration in which a liquid crystal layer is filled and sealed between two substrates disposed opposite to each other with a predetermined gap therebetween. In the liquid crystal display device having such a configuration, a spacer (a thickness of the liquid crystal layer and a cell gap) between the two substrates is maintained at a predetermined size by interposing a spacer between the two substrates. As the spacer, a columnar spacer formed using a photosensitive resin material such as a photoresist has come to be used, and is disposed on a gate electrode or a signal line between pixels having little influence on display. .

  For the liquid crystal panel having the columnar spacers as described above, a concave pattern is formed in the passivation film or interlayer insulating film under the alignment film for the purpose of preventing color unevenness due to the positional deviation of the columnar spacers, and the columnar pattern is formed in the concave pattern. The structure which inserts a spacer is proposed (for example, refer the following patent document 1).

  Some liquid crystal panels have a structure in which an insulating resin film is provided under a pixel electrode, a counter electrode, or the like for the purpose of improving an aperture ratio by planarizing a lower layer of the pixel electrode. Furthermore, there is a configuration in which this insulating resin film also serves as a color filter. In this case, a passivation film for preventing supply of contaminants from the color filter to the liquid crystal layer is provided on the insulating resin film also serving as the color filter, and a pixel electrode and a counter electrode are provided on the passivation film. . An inorganic insulating film such as silicon nitride is used as the passivation film.

JP 2001-305557 A

  However, in a liquid crystal panel having a columnar spacer as described above and an insulating resin film disposed below an inorganic material film such as a pixel electrode, a counter electrode, or a passivation film, external pressure is applied to the panel. When added, bubbles are likely to be generated in the liquid crystal layer. The generation of bubbles in the liquid crystal layer is a factor that degrades display characteristics and decreases the yield of products.

  Accordingly, the present invention provides a liquid crystal panel having a configuration capable of preventing the generation of bubbles in the liquid crystal layer and a display device using the same, thereby improving the yield of the liquid crystal panel and the display device using the liquid crystal panel. Objective.

In order to achieve such an object, the liquid crystal panel of the present invention includes a first substrate and a second substrate which are arranged to face each other, a liquid crystal layer which is filled and sealed between these substrates, and a liquid crystal layer which is interposed between these substrates. A pair of electrodes arranged across the substrate, a resin layer provided on the liquid crystal layer side of at least one of the first substrate and the second substrate, and a liquid crystal layer side of the resin layer having an opening exposing the resin layer And a columnar spacer sandwiched between the first substrate and the second substrate in a state of being erected in the opening.
Here, the columnar spacer is provided in a state of closing the opening and is supported on the resin layer exposed from the opening, and the resin layer is a color filter layer.

  Moreover, this invention is also a display apparatus provided with such a liquid crystal panel.

In the display panel having such a configuration, an opening is provided in a portion where the columnar spacer is erected in the inorganic insulating film covering the resin layer, so that the structure is not provided with an opening in the inorganic insulating film. It was confirmed that the generation of bubbles in the liquid crystal layer can be suppressed.

  As a result, generation of bubbles in the liquid crystal layer can be prevented, so that the yield of the liquid crystal panel and the display device using the liquid crystal panel can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<Panel Configuration of Embodiment>
FIG. 1A is a plan view of three pixels showing the configuration of the liquid crystal panel in the display device of the embodiment, and FIG. 1B is a schematic cross-sectional view taken along the line AA ′ in FIG. . In FIG. 1A, a part of the constituent elements is cut out for the sake of explanation.

  The liquid crystal panel 1 shown in these drawings constitutes an active matrix type liquid crystal display device. In the liquid crystal panel 1, a columnar spacer 30 is sandwiched between a first substrate 10 and a second substrate 20 configured using a glass substrate or other transparent material, and a liquid crystal layer LC is filled and sealed. It becomes. This display panel 1-1 differs from the conventional display panel in the configuration of layers provided on the liquid crystal layer LC side of the first substrate 10 (or the second substrate 20) on which the columnar spacers 30 are erected. Yes, other configurations may be similar. Hereinafter, general components in the liquid crystal panel 1 will be described in order from the first substrate 10 side, and thereafter, characteristic portions of the present invention will be described.

  That is, on the liquid crystal layer LC side of the first substrate 10, the scanning lines 11a, the power supply lines 11b parallel to the scanning lines 11a, and the signal lines 12 perpendicular thereto are wired (only shown in the plan view). Pixels are arranged corresponding to the intersections of the scanning lines 11a and the signal lines 12, and pixel circuits each including a thin film transistor Tr (shown only in a sectional view) are arranged for each pixel. Yes. The circuit configuration of the pixel circuit and wiring connected thereto will be described later.

  On the first substrate 10 provided with the thin film transistors Tr, color filters of each color, that is, a red filter 13r, a green filter 13g, and a blue filter 13b are provided for each pixel a. Each of the color filters 13r, 13g, and 13b constitutes one color filter layer 13 on the first substrate 10. The color filters 13r, 13g, and 13b may be provided in common between adjacent pixels. For example, the color filters 13r, 13g, and 13b may have a stripe shape that is common between the pixels a arranged in the vertical direction along the signal line 12. good.

  The color filter layer 13 composed of the color filters 13r, 13g, and 13b serves as an interlayer insulating film having a flat surface, and is formed with a film thickness that fills the unevenness of the lower pixel circuit. The color filter layer 13 is provided with a connection hole 13a that reaches the thin film transistor Tr in each pixel. Such a color filter layer 13 is a resin layer made of, for example, a photosensitive color resist material.

  In addition, when a groove part arises between each color filter 13r, 13g, 13b, you may provide further the insulating resin layer which abbreviate | omitted illustration here so that this groove part may be embedded.

  On the color filter layer (resin layer) 13 having the above-described configuration, an inorganic insulating film such as silicon nitride is used for the purpose of preventing contaminants from the color filter layer 13 from being supplied to the liquid crystal layer LC. (Inorganic material layer) 14 is provided. Note that such an inorganic insulating film 14 is also provided with a connection hole 13 a continuous to the connection hole 13 a provided in the color filter layer 13.

  On the inorganic insulating film 14, a pixel electrode 15 is patterned for each pixel a, and is connected to the thin film transistor Tr through the connection hole 13a. Each pixel electrode 15 is made of a transparent electrode material such as indium tin oxide (ITO).

  The entire surface of the first substrate 10 is covered with the alignment film 17 so as to cover the pixel electrodes 15. The alignment film 17 is applied with a film thickness of 100 nm, for example.

  On the other hand, as shown in the cross-sectional view, on the liquid crystal layer LC side of the second substrate 20 disposed opposite to the first substrate 10, a black color filter pattern is formed as a black matrix 21 at a portion corresponding to the pixel a-a. Is provided.

  An overcoat layer 23 is provided so as to cover the black matrix 21. This overcoat layer 23 is provided, for example, as both a planarizing film for embedding the irregularities of the black matrix 21 and a contamination preventing film for preventing contaminants from the black matrix 21 from being supplied to the liquid crystal layer LC. . Such an overcoat layer 23 is formed as a resin layer made of a resin material, for example.

On such an overcoat layer 23, a common electrode 25 common to all the pixels a and an alignment film 27 are formed in this order. Among these, the common electrode 25 is made of, for example, a transparent electrode material like the pixel electrode 15. The alignment film 27 is applied with a film thickness of 100 nm, for example.

  As described above, the columnar spacer 30 sandwiched between the first substrate 10 and the second substrate 20 having the surface facing the liquid crystal layer LC side has a predetermined thickness (cell gap) of the liquid crystal layer LC. Is to keep For this reason, the columnar spacers 30 are arranged in the panel plane at a predetermined interval and density as required within a range in which the layer thickness of the liquid crystal layer EL between the first substrate 10 and the second substrate 20 is uniform in the plane. It only has to be arranged. Moreover, these columnar spacers 30 may be provided in the pixel a as shown in the figure. The columnar spacers 30 as described above are formed on the first substrate 10 side or the second substrate 20 side using, for example, a resist material.

  In order to fill and seal the liquid crystal layer LC between the first substrate 10 and the second substrate 20, which are spaced by the columnar spacers 30, the outer periphery between the first substrate 10 and the second substrate 20 is sealed. It is sealed by (not shown). At this time, a liquid crystal material is dropped on either the first substrate 10 or the second substrate 20, and then the first substrate 10 and the second substrate 20 are bonded together.

  Although illustration is omitted here, the liquid crystal panel 1 having the above-described configuration is configured by disposing a polarizing plate outside the first substrate 10 and the second substrate 20. In addition, a display device using such a liquid crystal panel 1 has a configuration in which a backlight unit is provided on the outside of the non-display surface side of the liquid crystal panel 1, for example, on the outside of the first substrate 10 here. It has become. The backlight unit is a surface light source using a light source such as a discharge lamp or LED, and is configured by combining a diffusion layer and a reflection layer as necessary. Further, the backlight unit may have a configuration in which light from a light source is incident from an end portion of the light guide plate, and light is emitted in the surface direction of the light guide plate using a reflection sheet to form a surface light source. Such a backlight unit is disposed with the light emitting surface facing the non-display surface side of the liquid crystal panel 1. In the display device provided with such a backlight unit, display is performed by extracting light from the backlight unit provided on the first substrate 10 side from the second substrate 20 side by switching of the liquid crystal layer LC.

  In the liquid crystal panel 1 having the above-described configuration, the characteristic configuration of the present invention is that the inorganic insulating film 14, the pixel electrode 15, and the common electrode 25 provided on the resin layer such as the color filter layer 13 and the overcoat layer 23. In an inorganic material layer such as, an opening is provided. The columnar spacer 30 is sandwiched between the first substrate 10 and the second substrate 20 in a state of being erected in the opening.

  Hereinafter, based on FIG. 2, the specific structural example of the opening part with respect to the columnar spacer 30 is demonstrated. Each <Structure Example 1> to <Structure Example 4> shown in FIG. 2 is a cross-sectional view in which only a portion where the columnar spacer 30 is provided in the cross-sectional view of FIG.

<Configuration example 1>
The liquid crystal panel 1-1 is also the example shown in FIG. In <Structure Example 1>, an opening 14 a is provided in an inorganic insulating film (inorganic material layer) 14 that covers the color filter layer (resin layer) 13. A columnar spacer 30 is sandwiched between the first substrate 10 and the second substrate 20 in a state of being erected in the opening 14a.

  Here, the opening 14 a has a substantially similar planar shape that is slightly smaller than the bottom surface of the columnar spacer 30 on the first substrate 10 side, and the opening 14 a is blocked by the columnar spacer 30. ing. The columnar spacer 30 closes the opening 14a of the inorganic insulating film 14 provided on the first substrate 10 side, and is supported on the color filter layer 13 at the bottom of the opening 14a via the pixel electrode 15. It has become.

  These openings 14 a need only be provided corresponding to the arrangement portions of the columnar spacers 30.

  In this case, for example, as illustrated, the columnar spacer 30 may be formed on the first substrate 10 side. Thus, the columnar spacer 30 is formed in which the first substrate 10 side is thick enough to close the opening 14a exposing the color filter layer 13 in the columnar spacer 30. This columnar spacer 30 is in contact with the second substrate 20 side.

  In the liquid crystal panel 1-1 having the above-described configuration, as will be described later, a portion where the columnar spacer 30 is erected in the inorganic insulating film (inorganic material layer) 14 covering the color filter layer (resin layer) 13. It was confirmed that by providing the opening 14a in the liquid crystal layer, the generation of bubbles in the liquid crystal layer can be suppressed as compared with the conventional configuration in which the opening is not provided in the inorganic insulating film (inorganic material layer) 14. .

<Configuration example 2>
In the liquid crystal panel 1-2, an opening 14a is provided in an inorganic insulating film (inorganic material layer) 14 that covers the color filter layer (resin layer) 13 as in <Structure Example 1>. A columnar spacer 30 is sandwiched between the first substrate 10 and the second substrate 20 in a state of being erected on 14a.

  This <Configuration Example 2> is different from <Configuration Example 1> in that the opening 14a has a substantially similar planar shape that is slightly larger than the bottom surface of the columnar spacer 30 on the first substrate 10 side. There is. The columnar spacers 30 are inserted into the openings 14a of the inorganic insulating film 14 provided on the first substrate 10 side, and are supported on the color filter layer 13 at the bottom of the openings 14a via the pixel electrodes 15. It has become.

  These openings 14 a need only be provided corresponding to the arrangement portions of the columnar spacers 30.

  In this case, for example, as illustrated, the columnar spacer 30 may be formed on the second substrate 20 side. Thereby, in the columnar spacer 30, it is easy to form the bottom face on the side inserted into the opening 14a, and the opening 14a into which the bottom face side is inserted can be made smaller.

  Even in the liquid crystal panel 1-2 configured as described above, the columnar spacers 30 are erected on the inorganic insulating film (inorganic material layer) 14 covering the color filter layer (resin layer) 13 as described below. By providing the opening 14a in the portion to be formed, generation of bubbles in the liquid crystal layer LC can be suppressed as compared with the conventional configuration in which the opening is not provided in the inorganic insulating film (inorganic material layer) 14. Was confirmed.

<Configuration example 3>
In this liquid crystal panel 1-3, a continuous opening 15a is provided in the inorganic material layer of both the inorganic insulating film 14 and the pixel electrode 15 covering the color filter layer (resin layer) 13. Different from <Configuration Examples 1 and 2>. The opening 15a may have a common pattern, and the columnar spacer 30 is sandwiched between the first substrate 10 and the second substrate 20 in a state of being erected on the opening 14a.

  Here, the opening 15 a has a substantially similar planar shape that is slightly smaller than the bottom surface of the columnar spacer 30 on the first substrate 10 side, and the opening 15 a is blocked by the columnar spacer 30. ing. The columnar spacer 30 closes the opening 15a provided on the first substrate 10 side and is supported on the color filter layer 13 at the bottom of the opening 15a.

  These openings 15 a need only be provided corresponding to the arrangement portions of the columnar spacers 30.

  In this case, for example, as illustrated, the columnar spacer 30 may be formed on the first substrate 10 side. Thus, the columnar spacer 30 is formed in which the first substrate 10 side is thick enough to close the opening 14a exposing the color filter layer 13 in the columnar spacer 30. This columnar spacer 30 is in contact with the second substrate 20 side.

  Even in the liquid crystal panel 1-3 configured as described above, the columnar spacers 30 in the inorganic insulating film 14 and the inorganic material layer of the pixel electrode 15 covering the color filter layer (resin layer) 13 as described below. By providing the opening 15a at the portion where the liquid crystal is erected, the generation of bubbles in the liquid crystal layer LC can be suppressed as compared with the conventional configuration in which no opening is provided in these inorganic material layers. confirmed.

<Configuration example 4>
In the same manner as in <Configuration Example 3>, the liquid crystal panel 1-4 has a continuous opening 15a in both the inorganic material layers of the inorganic insulating film 14 and the pixel electrode 15 covering the color filter layer (resin layer) 13. Is provided. The opening 15a may be a common pattern. Further, in this <Configuration Example 4>, the common electrode 25 on the second substrate 20 side is also provided with an opening 25a. A columnar spacer 30 is sandwiched between the first substrate 10 and the second substrate 20 in a state of being erected on the opening 15a and the opening 25a.

  Here, the opening 15a on the first substrate 10 side has a substantially similar planar shape that is slightly smaller than the bottom surface of the columnar spacer 30 on the first substrate 10 side, as in <Configuration Example 3>. The opening 15 a is closed by the columnar spacer 30. The columnar spacer 30 closes the opening 15a of the first substrate 10 and is supported on the color filter layer 13 at the bottom of the opening 15a.

  On the other hand, the opening 25 a on the second substrate 20 side has a substantially similar planar shape that is slightly smaller than the bottom surface of the columnar spacer 30 on the second substrate 20 side, and the opening 25 a is closed by the columnar spacer 30. It is in a peeled state. The columnar spacer 30 closes the opening 25a on the second substrate 10 side and is supported on the overcoat layer 23 at the bottom of the opening 25a.

  The openings 15a and the openings 25a only need to be provided corresponding to the arrangement portions of the columnar spacers 30.

  In this case, for example, as illustrated, the columnar spacer 30 may be formed on the second substrate 20 side, or may be formed on the first substrate 10 side. However, if the columnar spacers 30 are formed on the first substrate 10 side, the columnar spacers 30 are formed so that the first substrate 10 side is thick enough to close the openings 14a exposing the color filter layer 13 in the columnar spacers 30. The This columnar spacer 30 is in contact with the second substrate 20 side.

  Even in the liquid crystal panel 1-4 having the above-described configuration, as will be described later, the inorganic insulating film 14, the pixel electrode 15, and the overlying resin layers such as the color filter layer 13 and the overcoat layer 23 are covered. In the inorganic material layer such as the common electrode 25, the openings 15a and 25a are provided in the portions where the columnar spacers 30 are erected, so that these inorganic material layers are not provided with openings. It was confirmed that the generation of bubbles in the liquid crystal layer LC was suppressed.

<About bubble generation>
Table 1 shows room temperature conditions for the liquid crystal panels 1-1 to 1-4 of the above <Structure Example 1> to <Structure Example 4> to which the present invention is applied, and the liquid crystal panel having a conventional structure in which no opening is provided. The result of the bubble generation test by the falling ball test method is shown below. Each of the liquid crystal panels 1-1 to 1-4 and the liquid crystal panel Ref having a conventional configuration is 40 cm × 70 cm, and uses negative liquid crystal (Δn = 0.8, Δε = −3) as the liquid crystal layer LC. The columnar spacer 30 has a height of 4 μm. Moreover, the panel which changed the filling rate of liquid crystal layer LC to 95%-100% about each structure was produced. The evaluation result of the bubble generation test is 5 samples for each panel, and it is NG if even one bubble is generated.

  As shown in Table 1 above, the liquid crystal panels 1-1 to 1-1 of <Configuration Example 1> to <Configuration Example 4> to which the present invention is applied as compared with a liquid crystal panel Ref having a conventional configuration in which no opening is provided. -4 confirmed that bubbles were suppressed in all cases where the filling rate of the liquid crystal layer was less than 100%. This is because the openings 14a and 15a are provided in the hard inorganic material layers 14, 15, and 25 covering the resin layers 13 and 23, and the column spacers 30 are provided in the openings 14a and 15a. It is considered that 30 can follow the change in atmospheric pressure.

  Further, in the configuration in which the opening 14a is provided only in the inorganic insulating film 14 as in <Structural Examples 1 and 2,> the generation of bubbles was suppressed to a filling rate of 98% in the liquid crystal layer LC. On the other hand, in the configuration in which the opening 15a is provided in the inorganic insulating film 14 and the pixel electrode 15 as in <Configuration Example 3>, the generation of bubbles can be suppressed to a filling rate of 96% in the liquid crystal layer LC. . Further, in the configuration in which the opening 25a is provided in the common electrode 25 on the second substrate 20 side as well as the opening 15a as in <Structure Example 4>, the generation of bubbles is further suppressed to a filling rate of 95% in the liquid crystal layer LC. I was able to.

  From this, when a plurality of inorganic material layers are provided on the resin layer corresponding to the position where the columnar spacers are provided, bubbles are generated by providing openings in as many inorganic material layers as possible. It was confirmed that the effect of suppressing the increase.

  As a result, the yield of the liquid crystal panel 1-1 and the display device using the same can be improved. At the same time, the margin for the filling rate of the liquid crystal layer can be increased.

  In <Configuration Example 1>, <Configuration Example 3>, and <Configuration Example 4>, the openings 14 a and 15 a provided in the inorganic insulating film 14 and the pixel electrode 15 are blocked by the columnar spacers 30. Yes. With such a configuration, the columnar spacer 30 serves as a lid for the opening 14a of the inorganic insulating film (inorganic material layer) 14, and from the color filter layer (resin layer) 13 through the openings 14a and 15a to the liquid crystal layer LC. This makes it possible to prevent the supply of contaminants such as pigments.

  The liquid crystal panel and the display device of the present invention are not limited to <Configuration Examples 1 to 4> described with reference to FIG. 2, and various combinations of <Configuration Examples 1 to 4> are possible, for example. . For example, in <Configuration Examples 3 and 4>, the columnar spacer 30 may be inserted into the opening 15a. Further, in <Configuration Example 4>, the columnar spacer 30 may be fitted into the opening 25a. Further, in <Configuration Examples 1 and 2>, an opening may be provided at a position corresponding to the standing portion of the columnar spacer 30 in the common electrode 25.

<Circuit configuration of LCD panel>
Next, an example of the circuit configuration of the liquid crystal panel 1 (1-1 to 1-4) according to the above-described embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the common component in embodiment described using FIG.

  FIG. 3 is a diagram showing an example of a circuit configuration of the liquid crystal panel 1 in the active matrix driving liquid crystal display device. A display region 10a and a peripheral region 10b are set on the first substrate 10 side. In the display area 10a, a plurality of scanning lines 11a, power supply lines 11b, and a plurality of signal lines 12 are wired vertically and horizontally, and a pixel array section in which one pixel a is provided corresponding to each intersection. It is configured as.

  On the other hand, a scanning line driving circuit 31 that scans and drives the scanning line 11a and a signal line driving circuit 33 that supplies a video signal (that is, an input signal) corresponding to luminance information to the signal line 12 are arranged in the peripheral region 10b. ing.

  Each pixel 1 is provided with, for example, a pixel circuit including a thin film transistor Tr as a switching element and a storage capacitor Cs, and further, a pixel electrode 15 connected to the pixel circuit is provided.

  In the above configuration, the pixel electrode 15 is arranged on the color filter layer and the inorganic insulating film, and other wirings and circuits are provided below the color filter layer and the inorganic insulating film.

  The thin film transistor Tr constituting each pixel circuit has a gate connected to the scanning line 11a, one source / drain connected to the signal line 12, and the other source / drain connected to the storage capacitor Cs and the pixel electrode 15. ing. The other electrode of the capacitive element Cs is connected to the power supply line 11b. Although illustration is omitted here, the power supply line 11b is connected to the common electrode (25) on the second substrate 20 side.

  The video signal written from the signal line 12 via the thin film transistor Tr is held in the holding capacitor Cs, and a voltage corresponding to the held signal amount is supplied to the pixel electrode 15.

  The configuration of the pixel circuit as described above is merely an example, and a capacitor element may be provided in the pixel circuit as necessary, or a plurality of transistors may be provided to configure the pixel circuit. Further, a necessary drive circuit may be added to the peripheral region 3b according to the change of the pixel circuit.

<Application example>
The display device provided with the liquid crystal panel according to the present invention described above includes various electronic devices shown in FIGS. 4 to 8, such as digital cameras, notebook personal computers, mobile terminal devices such as mobile phones, video cameras, etc. The present invention can be applied to display devices of electronic devices in various fields that display video signals input to electronic devices or video signals generated in electronic devices as images or videos. An example of an electronic device to which the present invention is applied will be described below.

  FIG. 4 is a perspective view showing a television to which the present invention is applied. The television according to this application example includes a video display screen unit 101 including a front panel 102, a filter glass 103, and the like, and is created by using the display device according to the present invention as the video display screen unit 101.

  5A and 5B are diagrams showing a digital camera to which the present invention is applied. FIG. 5A is a perspective view seen from the front side, and FIG. 5B is a perspective view seen from the back side. The digital camera according to this application example includes a light emitting unit 111 for flash, a display unit 112, a menu switch 113, a shutter button 114, and the like, and is manufactured by using the display device according to the present invention as the display unit 112.

  FIG. 6 is a perspective view showing a notebook personal computer to which the present invention is applied. A notebook personal computer according to this application example includes a main body 121 including a keyboard 122 that is operated when characters and the like are input, a display unit 123 that displays an image, and the like. It is produced by using.

  FIG. 7 is a perspective view showing a video camera to which the present invention is applied. The video camera according to this application example includes a main body 131, a lens 132 for shooting an object on a side facing forward, a start / stop switch 133 at the time of shooting, a display unit 134, and the like. It is manufactured by using such a display device.

  FIG. 8 is a view showing a mobile terminal device to which the present invention is applied, for example, a mobile phone, in which (A) is a front view in an opened state, (B) is a side view thereof, and (C) is in a closed state. (D) is a left side view, (E) is a right side view, (F) is a top view, and (G) is a bottom view. The mobile phone according to this application example includes an upper housing 141, a lower housing 142, a connecting portion (here, a hinge portion) 143, a display 144, a sub display 145, a picture light 146, a camera 147, and the like. And the sub display 145 is manufactured by using the display device according to the present invention.

It is a figure which shows the structure of the liquid crystal panel in the display apparatus of embodiment. It is sectional drawing which shows each structural examples 1-4 of the liquid crystal panel in the display apparatus of embodiment. It is a figure which shows an example of the circuit structure of the panel in the display apparatus of embodiment. It is a perspective view which shows the television to which this invention is applied. It is a figure which shows the digital camera to which this invention is applied, (A) is the perspective view seen from the front side, (B) is the perspective view seen from the back side. 1 is a perspective view showing a notebook personal computer to which the present invention is applied. It is a perspective view which shows the video camera to which this invention is applied. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the portable terminal device to which this invention is applied, for example, a mobile telephone, (A) is the front view in the open state, (B) is the side view, (C) is the front view in the closed state , (D) is a left side view, (E) is a right side view, (F) is a top view, and (G) is a bottom view.

Explanation of symbols

  1, 1-1, 1-2, 1-3, 1-4 ... liquid crystal panel, 10 ... first substrate, 20 ... second substrate, LC ... liquid crystal layer, 14a, 15a, 25a ... opening, 30 ... columnar Spacer, 14 ... inorganic insulating film (inorganic material layer), 15 ... pixel electrode (inorganic material layer), 25 ... common electrode (inorganic material layer), 13 ... color filter layer (resin layer), 21 ... color filter pattern, 23 ... Overcoat layer (resin layer)

Claims (8)

A first substrate and a second substrate disposed opposite to each other;
A liquid crystal layer filled and sealed between the first substrate and the second substrate;
A pair of electrodes disposed with the liquid crystal layer sandwiched between the first substrate and the second substrate;
A color filter layer provided in the liquid crystal layer side of definitive to the first base plate,
An inorganic insulating film provided on the liquid crystal layer side of the color filter layer having an opening through which the color filter layer is exposed;
A columnar spacer sandwiched between the first substrate and the second substrate in a state of being erected in the opening,
The columnar spacers are provided in the state of closing the opening, and a liquid crystal panel which is supported on the color filter layer exposed from the opening. The columnar spacer is sandwiched between the opening of the inorganic insulating film on the first substrate side and the opening of the electrode on the second substrate side.
The liquid crystal panel according to claim 1 . The opening is provided in a laminate composed of the inorganic insulating film and the electrode provided on the liquid crystal layer side.
The liquid crystal panel according to claim 1 or 2 . The columnar spacer, the liquid crystal panel according while being formed in a state of closing the opening of the front-inorganic insulating film, in any one of claims 1 to 3 which is contact with the second substrate side . A color filter pattern and an overcoat layer covering the color filter pattern are provided on the liquid crystal layer side of the second substrate.
The liquid crystal panel according to claim 1. A first substrate and a second substrate disposed opposite to each other;
A liquid crystal layer filled and sealed between the first substrate and the second substrate;
A pair of electrodes disposed with the liquid crystal layer sandwiched between the first substrate and the second substrate;
A color filter layer provided in the liquid crystal layer side of definitive to the first base plate,
An inorganic insulating film provided on the liquid crystal layer side of the color filter layer having an opening through which the color filter layer is exposed;
A columnar spacer sandwiched between the first substrate and the second substrate in a state of being erected in the opening,
The columnar spacers are provided in the state of closing the opening portion, and a display device having a liquid crystal panel which is supported on the color filter layer exposed from the opening. The display device according to claim 6, wherein a backlight unit is provided on a non-display surface side of the liquid crystal panel. A color filter pattern and an overcoat layer covering the color filter pattern are provided on the liquid crystal layer side of the second substrate.
The display device according to claim 6 or 7.

Images