JP2009157295A - Liquid crystal display element - Google Patents

Liquid crystal display element Download PDF

Info

Publication number
JP2009157295A
JP2009157295A JP2007338518A JP2007338518A JP2009157295A JP 2009157295 A JP2009157295 A JP 2009157295A JP 2007338518 A JP2007338518 A JP 2007338518A JP 2007338518 A JP2007338518 A JP 2007338518A JP 2009157295 A JP2009157295 A JP 2009157295A
Authority
JP
Japan
Prior art keywords
pixel electrode
provided
liquid crystal
crystal display
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007338518A
Other languages
Japanese (ja)
Inventor
Hiromitsu Ishii
Shigeru Morikawa
Yayoi Nakamura
やよい 中村
茂 森川
裕満 石井
Original Assignee
Casio Comput Co Ltd
カシオ計算機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Casio Comput Co Ltd, カシオ計算機株式会社 filed Critical Casio Comput Co Ltd
Priority to JP2007338518A priority Critical patent/JP2009157295A/en
Publication of JP2009157295A publication Critical patent/JP2009157295A/en
Application status is Pending legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To maintain the gap of a display region peripheral region around a display region consisting of arrangement regions of a plurality of pixel electrodes inside sealant in an active matrix transflective liquid crystal display element. <P>SOLUTION: In the display region, a pixel electrode 5 for transmission is provided on the upper side of a surface uneven film 21, a pixel electrode 6 for reflection is provided on the left thereupon, and a columnar spacer 23 is provided thereupon. The upper side of the columnar spacer 23 abuts against the lower side of a flat film 34 provided on the lower side of a counter electrode 33. In the display region peripheral region, a portion of the columnar spacer 47 of the same structure as the portion of the columnar spacer 23 in the display region is provided. Thus, the gap of the display region peripheral region can be maintained constant. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a liquid crystal display element.

  In general, a liquid crystal display element has a structure in which two substrates are bonded to each other via a substantially rectangular frame-shaped sealing material, and liquid crystal is sealed between both the substrates inside the sealing material. In such a conventional liquid crystal display element, a columnar spacer made of an acrylic resin or the like is used as one pixel electrode in order to set a spacer at a desired position for regulating the thickness (gap) of the liquid crystal layer. There is one arranged one by one (for example, see Patent Document 1).

JP 2006-98870 A

  However, in the above-described conventional liquid crystal display element, only one columnar spacer is arranged for each pixel electrode, and a display region for displaying an image, which is composed of a plurality of pixel electrode arrangement regions inside the sealing material. It is very difficult to keep the gap in the peripheral area around the display area constant. As a result, there is a problem that gap unevenness occurs in the outer peripheral portion of the display area immediately inside the peripheral area of the display area, and display unevenness may occur in the outer peripheral portion of the display area where the gap unevenness occurs.

  Accordingly, the present invention provides a liquid crystal display element capable of maintaining a constant gap in a display area peripheral area around a display area that includes an arrangement area of a plurality of pixel electrodes inside a sealing material and displays an image. With the goal.

The invention according to claim 1 is a liquid crystal display element in which two substrates are bonded together via a frame-shaped sealing material, and liquid crystal is sealed between the two substrates inside the sealing material. A display region columnar spacer is provided in a display region that includes an arrangement region of a plurality of pixel electrodes on the inner side and displays an image, and a peripheral region columnar spacer is provided in a display region peripheral region around the display region on the inner side of the sealant. It is characterized by being provided.
According to a second aspect of the present invention, in the first aspect of the present invention, the pixel electrode includes a transmission pixel electrode and a reflection pixel electrode provided on an inner surface side of one of the two substrates. The transmissive pixel electrode includes a first pixel electrode portion provided in a region adjacent to the reflective pixel electrode, and a second pixel electrode portion provided under the reflective pixel electrode. It is characterized by having.
According to a third aspect of the present invention, in the second aspect of the present invention, a display region surface uneven film is provided under the transmissive pixel electrode, and the transmissive pixel electrode is a surface of the display region surface uneven film. The reflection pixel electrode is formed in an uneven shape following the unevenness, and the reflection pixel electrode is formed in an uneven shape following the surface unevenness of the transmission pixel electrode.
According to a fourth aspect of the present invention, in the third aspect of the invention, the display region columnar spacer is provided on the inner surface side of the reflective pixel electrode and the other of the two substrates. The peripheral region columnar spacer is provided between the display region planarization film and the peripheral region surface uneven film provided on the inner surface side of the one substrate and the dummy transmission pixel electrode. It is provided between the reflective pixel electrode and the peripheral region planarization film provided on the inner surface side of the other substrate.
According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the outer surface of the sealing material is provided on the outer surface uneven film and the dummy transmission pixel electrode provided on the inner surface side of the one substrate. An external columnar spacer is provided between the dummy reflective pixel electrode and the external planarizing film provided on the inner surface side of the other substrate.
The invention according to claim 6 is the invention according to claim 4 or 5, characterized in that a light shielding film is provided on the inner surface side of the other substrate in portions corresponding to the sealing material and both sides thereof. To do.
According to a seventh aspect of the present invention, in the second aspect of the present invention, a surface uneven film is provided only under the second pixel electrode portion of the transmissive pixel electrode, and the second pixel electrode portion is The reflective pixel electrode is formed in an uneven shape following the surface unevenness of the second pixel electrode portion, following the surface unevenness of the surface uneven film. It is.
The invention according to claim 8 is the invention according to claim 7, wherein the columnar spacer for display area is between the reflective pixel electrode and the inner surface side of the other of the two substrates. The peripheral region columnar spacer is provided on the inner surface of the one substrate, the peripheral region surface uneven film, the dummy reflective pixel electrode provided on the dummy transmitting pixel electrode, and the other substrate. It is provided between the inner surface side.
According to a ninth aspect of the invention, in the eighth aspect of the invention, the outer surface of the sealing material is provided on the outer surface uneven film and the dummy transmission pixel electrode provided on the inner surface side of the one substrate. An external columnar spacer is provided between the dummy reflective pixel electrode and the external planarizing film provided on the inner surface side of the other substrate.
The invention according to claim 10 is the invention according to claim 8 or 9, characterized in that a light-shielding film is provided on the inner surface side of the other substrate in portions corresponding to the sealing material and both sides thereof. To do.
The invention described in claim 11 is characterized in that, in the invention described in claim 1, a spherical or columnar seal spacer is mixed in the sealing material.
According to a twelfth aspect of the invention, in the invention of the eleventh aspect, the seal spacer is made of an inorganic material.

  According to the present invention, the display region columnar spacers are provided in the display region that displays the image and includes the plurality of pixel electrode arrangement regions inside the sealing material, and the display region peripheral region around the display region is provided inside the sealing material. Since the peripheral region columnar spacers are provided, not only the display region but also the gap in the peripheral region of the display region can be maintained constant.

(First embodiment)
FIG. 1 shows a cross-sectional view of the main part of an active matrix transflective liquid crystal display element as a first embodiment of the present invention, and FIG. 2 shows a partial transmission plan view of the thin film transistor substrate side of the liquid crystal display element. . In this case, the left part of FIG. 1 is a cross-sectional view corresponding to the part along the line II in FIG. The liquid crystal display element includes a thin film transistor substrate 1 made of a glass substrate or the like and a counter substrate 31.

  First, the thin film transistor substrate 1 side will be described with reference to FIG. The scanning lines 2 and the data lines 3 are provided in a matrix on the upper surface side of the thin film transistor substrate 1 (the inner surface side facing the counter substrate 31), and the thin film transistor 4, the transmission pixel electrode 5 and the reflection pixel are provided in the vicinity of each intersection. An electrode 6 is provided, and a substantially lattice-shaped auxiliary capacitance electrode 7 is provided in parallel with the scanning line 2 and the data line 3. Here, for the purpose of clarifying FIG. 2, oblique short solid hatching is written at the edge of the transmission pixel electrode 5.

  In this case, the four sides of the transmissive pixel electrode 5 are overlapped with a substantially lattice-shaped auxiliary capacitance electrode 7 disposed around the four sides. The right half of the transmissive pixel electrode 5 is a first pixel electrode portion 5a, and the left half is a second pixel electrode portion 5b. The first pixel electrode portion 5 a is disposed adjacent to the left side of the reflective pixel electrode 6. The second pixel electrode portion 5b is disposed below the reflective pixel electrode 6 having the same size as the second pixel electrode portion 5b.

  Thereby, in the transmissive pixel electrode 5, a region excluding the reflective pixel electrode 6 formation region and the auxiliary capacitance electrode 7 formation region is a substantial transmissive pixel region. That is, in the first pixel electrode portion 5a, a region excluding the storage capacitor electrode 7 formation region is a substantial transmission pixel region. A region corresponding to the reflection pixel electrode 6 is a reflection pixel region.

  The auxiliary capacitance electrode 7 has a substantially lattice shape, and overlaps the first auxiliary capacitance electrode portion 7 a overlapped with the data line 3, the second auxiliary capacitance electrode portion 7 b overlapped with the scanning line 2, and the thin film transistor 4. And the third auxiliary capacitance electrode portion 7c. In this case, the width of the first auxiliary capacitance electrode 7 a is somewhat larger than the width of the data line 3. The width of the second auxiliary capacitance electrode 7b is somewhat larger than the width of the scanning line 2.

  The third auxiliary capacitance electrode 7 c and the reflection pixel electrode 6 are provided so as to cover the thin film transistor 4. Thereby, the incidence of external light to the thin film transistor 4 is surely prevented. Further, since the auxiliary capacitor electrode 7 and the reflective pixel electrode 6 substantially cover the area other than the substantial transmission pixel area of the transmission pixel electrode 5, the area corresponding to the display area of the counter substrate 31 described later is provided. It is not necessary to provide a black mask for preventing light leakage, and the aperture ratio can be increased.

  Next, a specific structure of the liquid crystal display element will be described first with reference to the left part of FIG. A scanning line 2 (see FIG. 2) including a gate electrode 11 made of chromium, molybdenum or the like is provided at a predetermined position on the upper surface of the thin film transistor substrate 1. A gate insulating film 12 made of silicon nitride is provided on the upper surface of the thin film transistor substrate 1 including the gate electrode 11 and the scanning line 2.

  A semiconductor thin film 13 made of intrinsic amorphous silicon is provided at a predetermined position on the upper surface of the gate insulating film 12 on the gate electrode 11. A channel protective film 14 made of silicon nitride is provided at a predetermined position on the upper surface of the semiconductor thin film 13 on the gate electrode 11. Ohmic contact layers 15 and 16 made of n-type amorphous silicon are provided on both sides of the upper surface of the channel protective film 14 and on the upper surface of the semiconductor thin film 13 on both sides thereof. A source electrode 17 and a drain electrode 18 made of chromium, molybdenum or the like are provided on the upper surfaces of the ohmic contact layers 15 and 16.

  The thin film transistor 4 is constituted by the gate electrode 11, the gate insulating film 12, the semiconductor thin film 13, the channel protective film 14, the ohmic contact layers 15 and 16, the source electrode 17 and the drain electrode 18.

  A data line 3 is provided at a predetermined location on the upper surface of the gate insulating film 12. In this case, the data line 3 has a three-layer structure of an intrinsic amorphous silicon film 3a, an n-type amorphous silicon film 3b, and a metal film 3c made of chromium, molybdenum or the like in order from the bottom. The intrinsic amorphous silicon film 3a, the n-type amorphous silicon film 3b, and the metal film 3c are connected to the semiconductor thin film 13, the ohmic contact layer 16, and the drain electrode 18 in the drain electrode 18 formation region.

  An interlayer insulating film 19 made of silicon nitride is provided on the upper surface of the gate insulating film 12 including the thin film transistor 4 and the data line 3. An auxiliary capacitance electrode 7 made of chromium, molybdenum or the like is provided at a predetermined location on the upper surface of the interlayer insulating film 19. An overcoat film 20 made of silicon nitride is provided on the upper surface of the interlayer insulating film 19 including the auxiliary capacitance electrode 7.

  In the display pixel electrode 5 forming region in the display region on the upper surface of the overcoat film 20, a display region surface uneven film 21 made of an organic material such as epoxy resin or polyimide resin is provided. Here, the display area is an area in which an image is displayed, each of which is composed of an arrangement area of a plurality of transmission pixel electrodes 5 and reflection pixel electrodes 6. A contact hole 22 is provided in the display surface surface uneven film 21, overcoat film 20 and interlayer insulating film 19 on the source electrode 17.

  The transmissive pixel electrode 5 made of a transparent conductive material such as ITO having a concavo-convex surface following the concavo-convex surface is connected to the source electrode 17 through the contact hole 22 on the concavo-convex surface of the surface concavo-convex film 21 for display area. Is provided. A reflective pixel electrode 6 made of a highly reflective material such as aluminum, aluminum alloy, or silver is provided on the upper surface of the left half of the transmissive pixel electrode 5. A display area columnar spacer 23 made of an acrylic resin or the like is provided at a predetermined position on the upper surface of the reflective pixel electrode 6.

  Here, an example of a method for forming the surface uneven film 21 for a display region having an uneven surface will be described. First, an uneven surface forming film made of an organic material such as an epoxy resin or a polyimide resin is flattened on the uneven surface of a mold whose surface is uneven by a printing method, a spin coating method, a die coating method, or the like. It forms so that it becomes. Next, the mold is turned upside down to transfer the surface uneven film forming film onto the upper surface of the overcoat film 20 shown in FIG. Next, when the transferred film for forming the surface uneven film is patterned by a photolithography method, as shown in FIG. 2, the surface uneven film for display area 21 is formed on the transmissive pixel electrode 5 forming area on the upper surface of the overcoat film 20. Is formed.

  In FIG. 1, the unevenness on the surface of the display region surface uneven film 21 is illustrated with an inclination angle of 45 ° with respect to the horizontal plane. However, this is for the convenience of illustration, and is actually incident on the liquid crystal display element. In order to reflect the emitted light in the vertical direction, it is desirable to include a large number of those having an inclination angle of about 5 to 20 degrees with respect to the horizontal plane.

  On the other hand, red, green, and blue color filters 32 made of resin are provided on the lower surface of the counter substrate 31 (the inner surface on the side facing the thin film transistor 1). A counter electrode 33 made of a transparent conductive material such as ITO is provided on the lower surface of the color filter 32. A display region flattening film 34 made of an organic material such as epoxy resin or polyimide resin is provided on the lower surface of the counter electrode 33 in a portion corresponding to the reflective pixel electrode 6.

  As shown on the right side of FIG. 1, the thin film transistor substrate 1 and the counter substrate 31 are made of an epoxy resin or the like mixed with a spherical or cylindrical seal spacer 41 made of an inorganic material such as silica glass or glass fiber. They are bonded to each other via a substantially rectangular frame-shaped sealing material 42. A liquid crystal 43 is sealed between the substrates 1 and 31 inside the sealing material 42.

  In this case, as shown on the right side of FIG. 1, in the upper surface of the overcoat film 20 on the inner side of the sealing material 42, the display region peripheral region is formed at the same time as the display region surface uneven film 21 is formed. Further, a surface uneven film 44 for the peripheral region is provided. A dummy transmissive pixel electrode 45 formed simultaneously with the formation of the transmissive pixel electrode 5 is provided on the uneven surface of the peripheral surface surface uneven film 44. On the upper surface of the dummy transmission pixel electrode 45, a dummy reflection pixel electrode 46 formed simultaneously with the formation of the reflection pixel electrode 6 is provided. On the upper surface of the dummy reflective pixel electrode 46, a peripheral region columnar spacer 47 formed simultaneously with the formation of the display region columnar spacer 23 is provided.

  On the other hand, a light shielding film 48 made of a black resin is provided on the lower surface of the counter substrate 31 on both sides of the sealing material 42. A counter electrode 33 is provided on the lower surface of the light shielding film 48. On the lower surface of the counter electrode 33 inside the sealing material 42, a peripheral region planarizing film 49 formed simultaneously with the formation of the display region planarizing film 34 is provided.

  On the outside of the sealing material 42, the same structure as that of the peripheral region columnar spacer 47 is provided. That is, the external surface uneven film 51 is provided on the upper surface of the overcoat film 20. A dummy transmissive pixel electrode 52 is provided on the uneven surface of the external surface uneven film 51. A dummy reflection pixel electrode 53 is provided on the upper surface of the dummy transmission pixel electrode 52. An external columnar spacer 54 is provided on the upper surface of the dummy reflective pixel electrode 53. An external planarization film 55 is provided on the lower surface of the counter electrode 32.

  In the state where the thin film transistor substrate 1 and the counter substrate 31 are bonded to each other via the sealing material 42 mixed with the sealing spacer 41, the upper surfaces of the columnar spacers 23, 47, 54 are the planarizing films 34, 49, It is in contact with the lower surface of 55. In this state, a spherical or cylindrical seal spacer 41 made of an inorganic material such as silica glass or glass fiber is interposed between the overcoat film 20 of the thin film transistor substrate 1 and the counter electrode 32 of the counter substrate 31 with almost no deformation. As a result, the distance between the overcoat film 20 and the counter electrode 32 is kept constant.

  The display region columnar spacers 23 are provided so that the interval between the overcoat film 20 and the counter electrode 32 in the reflective pixel electrode 6 is the same as the interval by the seal spacer 41. The peripheral region columnar spacer 47 is provided so that the space between the overcoat film 20 and the counter electrode 32 inside the seal material 42 is the same as the space by the seal spacer 41. The external columnar spacer 54 is provided so that the distance between the overcoat film 20 and the counter electrode 32 outside the seal material 42 is the same as the distance by the seal spacer 41.

  As described above, in this liquid crystal display element, since the peripheral region columnar spacers 47 are provided in the display region peripheral region around the display region inside the seal material 42, the periphery of the display region is provided inside the seal material 42. The gap in the display area peripheral area can be kept constant. As a result, display unevenness due to gap unevenness can be prevented from occurring at the outer peripheral portion of the display area just inside the display area peripheral area inside the sealant 42.

  Next, the operation of the liquid crystal display element having the above configuration will be described. First, when the liquid crystal display element having the above configuration is used as a transmission type, when a backlight (not shown) arranged on the lower surface side of the thin film transistor substrate 1 is turned on, light from the backlight is converted into the thin film transistor substrate 1, A gate insulating film 12, an interlayer insulating film 19, an overcoat film 20, a surface uneven film 21 for display area, a substantial transmissive pixel region of the transmissive pixel electrode 5, a liquid crystal 43, a counter electrode 33, a color filter 32, and The light passes through the counter substrate 31 and is emitted to the upper surface side of the counter substrate 31, thereby performing display.

  On the other hand, when the liquid crystal display element having the above configuration is used as a reflective type, the backlight is not turned on, and external light incident from the upper surface side of the counter substrate 31 is opposed to the counter substrate 31, the color filter 32, the counter electrode 33, The light is transmitted through the display region planarizing film 34, the display region columnar spacer 23, and the liquid crystal 43 and reflected by the reflection pixel electrode 6, and the reflected light is emitted to the upper surface side of the counter substrate 31 through an optical path opposite to the above. Thus, display is performed.

  In this case, since the reflection pixel electrode 6 is formed to have an uneven surface that follows the uneven surface of the display region surface uneven film 21, the light scattering reflection function is exhibited on the uneven surface. Further, depending on the film thickness of the display region flattening film 34, the gap between the display region flattening film 34 and the reflective pixel electrode 6 is about 1 of the gap between the counter electrode 33 and the transmissive pixel electrode 5. If it is set to / 2, it can be set as the multigap structure from which a reflectance and the transmittance | permeability are both optimal.

  By the way, in any case where the liquid crystal display element having the above configuration is used as a transmissive type and a reflective type, external light incident from the upper surface side of the counter substrate 31 is blocked by the light shielding film 48 in the sealing material 42 and the portions on both sides thereof. Since the light is shielded, the external light is not reflected by the dummy reflection pixel electrodes 46 and 54, and the contrast can be prevented from being lowered.

(Second Embodiment)
FIG. 3 is a sectional view similar to FIG. 1 of a liquid crystal display device as a second embodiment of the present invention. This liquid crystal display element is different from the liquid crystal display element shown in FIG. 1 in that a display region surface uneven film 21 is provided only under the second pixel electrode portion 5b of the transmission pixel electrode 5, and the transmission pixel electrode is provided. 5 is provided on the upper surface of the overcoat film 20, the planarizing films 34, 49, 55 are omitted, and the columnar spacers 23, 47, 54 are used as the reflective pixel electrode 6 and the dummy reflective pixel electrode. This is a point provided between 46 and 53 and the counter electrode 33.

  In this case, the gap between the reflective pixel electrode 6 and the counter electrode 33 is the same as that of the transmissive pixel electrode 5 due to the total film thickness of the surface uneven film 21 for display area, the transmissive pixel electrode 5 and the reflective pixel electrode 6. If the gap between the pixel electrode portion 5a of one pixel and the counter electrode 33 is about ½, a multi-gap structure in which both the reflectance and the transmittance are optimum can be obtained.

(Third embodiment)
FIG. 4 is a cross-sectional view similar to FIG. 1 of a liquid crystal display device as a third embodiment of the present invention. This liquid crystal display element is different from the liquid crystal display element shown in FIG. 1 in that all surface area uneven films 21 and all peripheral area surface uneven films 44 are made continuous.

(Other embodiments)
The material of the seal spacer 41 is not limited to an inorganic material, and may be an organic material such as a resin. In each of the above embodiments, the gap in the sealing material 42 is kept constant only in the peripheral region column spacer 47 or only in the peripheral column spacer 47 portion and the external column spacer 54 portion. If possible, the seal spacer 41 may be omitted.

1 is a cross-sectional view of a main part of an active matrix type transflective liquid crystal display device as a first embodiment of the present invention. FIG. 2 is a partial transmission plan view on the thin film transistor substrate side in the liquid crystal display element shown in FIG. 1. Sectional drawing similar to FIG. 1 of the liquid crystal display element as 2nd Embodiment of this invention. Sectional drawing similar to FIG. 1 of the liquid crystal display element as 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Thin-film transistor substrate 4 Thin-film transistor 5 Transmission pixel electrode 5a 1st pixel electrode part 5b 2nd pixel electrode part 6 Reflection pixel electrode 7 Auxiliary capacity electrode 12 Gate insulating film 19 Interlayer insulating film 20 Overcoat film 21 Display area surface Uneven film 23 Display area columnar spacer 31 Counter substrate 32 Color filter 33 Counter electrode 34 Display area flattening film 41 Seal spacer 42 Sealing material 43 Liquid crystal 44 Peripheral area surface uneven film 45 Dummy transmissive pixel electrode 46 Dummy reflective pixel Electrode 47 Peripheral column spacer 48 Light-shielding film 49 Peripheral region planarization film 51 External surface uneven film 52 Dummy transmission pixel electrode 53 Dummy reflection pixel electrode 54 External columnar spacer 55 External planarization film

Claims (12)

  1.   In a liquid crystal display element in which two substrates are bonded together via a frame-shaped sealing material, and liquid crystal is sealed between the two substrates inside the sealing material, a plurality of pixel electrode arrangement regions inside the sealing material A display area columnar spacer is provided in a display area for displaying an image, and a peripheral area columnar spacer is provided in a display area peripheral area around the display area inside the sealant. Liquid crystal display element.
  2.   2. The transmissive pixel electrode according to claim 1, wherein the pixel electrode includes a transmissive pixel electrode and a reflective pixel electrode provided on an inner surface side of one of the two substrates. Has a first pixel electrode portion provided in a region adjacent to the reflective pixel electrode, and a second pixel electrode portion provided under the reflective pixel electrode. .
  3.   The display area surface uneven film is provided under the transmissive pixel electrode, and the transmissive pixel electrode is formed in an uneven shape following the surface unevenness of the display area surface uneven film. The liquid crystal display element is characterized in that the reflective pixel electrode is formed in an uneven shape following the surface unevenness of the transmissive pixel electrode.
  4.   4. The display area columnar spacer according to claim 3, wherein the display area columnar spacer is between the reflective pixel electrode and a display area planarizing film provided on the inner surface side of the other of the two substrates. The peripheral region columnar spacer includes a peripheral region surface irregularity film provided on the inner surface side of the one substrate, a dummy reflective pixel electrode provided on the dummy transmission pixel electrode, and the other substrate. A liquid crystal display element, wherein the liquid crystal display element is provided between a planarizing film for a peripheral region provided on an inner surface side of the liquid crystal display device.
  5.   5. The invention according to claim 4, wherein, on the outer side of the sealing material, the external surface uneven film provided on the inner surface side of the one substrate and the dummy reflective pixel electrode provided on the dummy transmitting pixel electrode, and A liquid crystal display element, wherein an external columnar spacer is provided between an external planarizing film provided on the inner surface side of the other substrate.
  6.   6. The liquid crystal display element according to claim 4, wherein a light-shielding film is provided on an inner surface side of the other substrate at portions corresponding to both sides of the sealing material.
  7.   3. The invention according to claim 2, wherein a surface uneven film is provided only under the second pixel electrode portion of the transmission pixel electrode, and the second pixel electrode portion follows the surface unevenness of the surface uneven film. The liquid crystal display element is characterized in that the reflective pixel electrode is formed in an uneven shape following the surface unevenness of the second pixel electrode portion.
  8.   8. The display area columnar spacer according to claim 7, wherein the display area columnar spacer is provided between the reflective pixel electrode and an inner surface side of the other of the two substrates, and the peripheral area columnar spacer is provided. Is provided between the peripheral surface surface irregularity film provided on the inner surface side of the one substrate and the dummy reflection pixel electrode provided on the dummy transmission pixel electrode and the inner surface side of the other substrate. A liquid crystal display element characterized by comprising:
  9.   9. The invention according to claim 8, wherein, on the outer side of the sealing material, the external surface uneven film provided on the inner surface side of the one substrate and the dummy reflective pixel electrode provided on the dummy transmissive pixel electrode; A liquid crystal display element, wherein an external columnar spacer is provided between an external planarizing film provided on the inner surface side of the other substrate.
  10.   10. The liquid crystal display element according to claim 8, wherein a light-shielding film is provided on an inner surface side of the other substrate at portions corresponding to both sides of the sealing material.
  11.   2. The liquid crystal display element according to claim 1, wherein spherical or cylindrical seal spacers are mixed in the sealing material.
  12.   12. The liquid crystal display element according to claim 11, wherein the seal spacer is made of an inorganic material.
JP2007338518A 2007-12-28 2007-12-28 Liquid crystal display element Pending JP2009157295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007338518A JP2009157295A (en) 2007-12-28 2007-12-28 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007338518A JP2009157295A (en) 2007-12-28 2007-12-28 Liquid crystal display element

Publications (1)

Publication Number Publication Date
JP2009157295A true JP2009157295A (en) 2009-07-16

Family

ID=40961348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007338518A Pending JP2009157295A (en) 2007-12-28 2007-12-28 Liquid crystal display element

Country Status (1)

Country Link
JP (1) JP2009157295A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103576393A (en) * 2013-07-09 2014-02-12 友达光电股份有限公司 Display panel

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03175424A (en) * 1989-12-04 1991-07-30 Nec Corp Liquid crystal panel
JP2000338504A (en) * 1999-05-26 2000-12-08 Nec Corp Color liquid crystal display device
JP2001183676A (en) * 1999-12-22 2001-07-06 Casio Comput Co Ltd Liquid crystal display element
JP2003057660A (en) * 2001-06-05 2003-02-26 Sharp Corp Liquid crystal display element and liquid crystal display device using the same
JP2005010411A (en) * 2003-06-18 2005-01-13 Sony Corp Manufacturing method of liquid crystal display
JP2005070808A (en) * 2004-11-08 2005-03-17 Toshiba Corp Method for manufacturing liquid crystal display
JP2005215180A (en) * 2004-01-28 2005-08-11 Toshiba Matsushita Display Technology Co Ltd Liquid crystal display device
JP2006091063A (en) * 2004-09-21 2006-04-06 Casio Comput Co Ltd Liquid crystal display element
JP2007047346A (en) * 2005-08-09 2007-02-22 Sanyo Epson Imaging Devices Corp Manufacturing method for electro-optical device, electrooptical device, and electronic equipment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03175424A (en) * 1989-12-04 1991-07-30 Nec Corp Liquid crystal panel
JP2000338504A (en) * 1999-05-26 2000-12-08 Nec Corp Color liquid crystal display device
JP2001183676A (en) * 1999-12-22 2001-07-06 Casio Comput Co Ltd Liquid crystal display element
JP2003057660A (en) * 2001-06-05 2003-02-26 Sharp Corp Liquid crystal display element and liquid crystal display device using the same
JP2005010411A (en) * 2003-06-18 2005-01-13 Sony Corp Manufacturing method of liquid crystal display
JP2005215180A (en) * 2004-01-28 2005-08-11 Toshiba Matsushita Display Technology Co Ltd Liquid crystal display device
JP2006091063A (en) * 2004-09-21 2006-04-06 Casio Comput Co Ltd Liquid crystal display element
JP2005070808A (en) * 2004-11-08 2005-03-17 Toshiba Corp Method for manufacturing liquid crystal display
JP2007047346A (en) * 2005-08-09 2007-02-22 Sanyo Epson Imaging Devices Corp Manufacturing method for electro-optical device, electrooptical device, and electronic equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103576393A (en) * 2013-07-09 2014-02-12 友达光电股份有限公司 Display panel
CN103576393B (en) * 2013-07-09 2017-03-01 友达光电股份有限公司 Display floater

Similar Documents

Publication Publication Date Title
US7944540B2 (en) Color filter on thin film transistor type liquid crystal display device and method of fabricating the same
US20050117092A1 (en) Color filter array substrate and fabricating method thereof
US20050024559A1 (en) Liquid crystal display device and electronic apparatus
JP2004212952A (en) Reflection transmission liquid crystal display device and its manufacturing method
JP3842604B2 (en) Liquid crystal display
US7791705B2 (en) Liquid crystal display apparatus
US7876404B2 (en) Transflective LCD device and fabrication method thereof
US5844645A (en) Color liquid-crystal display device
KR20090060159A (en) Liquid crystal display device and method of manufacturing liquid crystal display device
US7391487B2 (en) Liquid crystal display device comprising a black matrix having a first sloped side less steep than a second sloped side
KR101427708B1 (en) Liquid crystal display panel
US7102714B2 (en) Transflective LCD device with opening formed in electrode positioned corresponding to inclined plane of thickness-adjusting layer
EP2573617B1 (en) Active matrix liquid crystal display
JP2005345757A (en) Liquid crystal display and its manufacturing method
TWI291588B (en) Electro-optical device, substrate for electro-optical device, and projecting type display device
JP5197206B2 (en) Liquid crystal display
JP4679067B2 (en) Liquid crystal display device
US8390770B2 (en) Liquid crystal display, color filter substrate and manufacturing method thereof
KR100808309B1 (en) Liquid crystal display device
JP2011186279A (en) Liquid crystal display panel
US8659726B2 (en) Liquid crystal display and method of manufacturing liquid crystal display
JP4235576B2 (en) Color filter substrate and display device using the same
JP4155227B2 (en) Liquid crystal display device and electronic device
US7742133B2 (en) Transflective liquid crystal display device having high aperture ratio and fabrication method thereof
JP5245028B2 (en) Liquid crystal display device and manufacturing method thereof

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101214

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120531

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120703

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120831

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130326

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130524

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20131224