CN113189818A - Liquid crystal display panel and manufacturing method thereof - Google Patents
Liquid crystal display panel and manufacturing method thereof Download PDFInfo
- Publication number
- CN113189818A CN113189818A CN202110485068.3A CN202110485068A CN113189818A CN 113189818 A CN113189818 A CN 113189818A CN 202110485068 A CN202110485068 A CN 202110485068A CN 113189818 A CN113189818 A CN 113189818A
- Authority
- CN
- China
- Prior art keywords
- black matrix
- electrodes
- electrode
- liquid crystal
- substrate
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 110
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 126
- 230000005684 electric field Effects 0.000 claims abstract description 46
- 239000011159 matrix material Substances 0.000 claims description 145
- 239000000463 material Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 13
- 238000000206 photolithography Methods 0.000 claims description 10
- 238000001259 photo etching Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004038 photonic crystal Substances 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
Abstract
A liquid crystal display panel and a manufacturing method thereof, the liquid crystal display panel comprises: a first substrate including a plurality of first electrodes; a second substrate disposed opposite to the first substrate, and including a plurality of second electrodes disposed opposite to the plurality of first electrodes; and a blue phase liquid crystal layer; the electric field intensity direction of a parallel electric field formed by each first electrode and the corresponding second electrode is inclined relative to the display surface of the liquid crystal display panel; the parallel inclined electric field is formed between the first substrate and the second substrate, so that the driving voltage of the liquid crystal display panel adopting blue phase liquid crystal is reduced, and the problem that the driving voltage of the liquid crystal above the electric field is insufficient when a vertical electric field is used is avoided.
Description
Technical Field
The invention relates to the field of display, in particular to a liquid crystal display panel and a manufacturing method thereof.
Background
The blue phase liquid crystal has the outstanding advantages of high response speed, wide viewing angle, good dark state, simple and convenient manufacturing process, low cost and the like, the driving voltage required in the use process of the blue phase liquid crystal is greater than the driving voltage of a common liquid crystal display panel, the existing blue phase liquid crystal generally adopts a parallel vertical electric field, but the electric field intensity of the parallel electric field is smaller when the parallel electric field is closer to one side of a color film substrate, therefore, when the blue phase liquid crystal is used, in order to ensure the normal driving and display of the whole liquid crystal display panel, a larger voltage must be loaded to increase the penetrating power of the whole electric field, and the voltage of the whole electric field is larger.
Therefore, in the conventional liquid crystal display panel technology, the driving voltage of the blue-phase liquid crystal is too large, and the driving voltage of the liquid crystal above the electric field is insufficient when a vertical electric field is adopted, so that improvement is urgently needed.
Disclosure of Invention
The invention relates to a liquid crystal display panel and a manufacturing method thereof, which are used for solving the problems that the driving voltage of blue phase liquid crystal is too large, and the driving voltage of the liquid crystal above an electric field is insufficient when a vertical electric field is adopted in the prior art.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the invention provides a liquid crystal display panel, comprising:
a first substrate including a plurality of first electrodes;
a second substrate disposed opposite to the first substrate, and including a plurality of second electrodes disposed opposite to the plurality of first electrodes; and
a blue phase liquid crystal layer between the plurality of first electrodes and the plurality of second electrodes;
the electric field intensity direction of the parallel electric field formed by each first electrode and the corresponding second electrode is inclined relative to the display surface of the liquid crystal display panel.
In some embodiments, a side surface of each of the first electrodes near the corresponding second electrode is inclined with respect to the display surface.
In some embodiments, a side of each of the second electrodes near the corresponding first electrode is parallel to the side of the corresponding first electrode.
In some embodiments, the first substrate comprises a plurality of first support posts and the second substrate comprises a plurality of second support posts; each of the first electrodes abuts against the first support column, and each of the second electrodes abuts against the second support column.
In some embodiments, the first substrate includes a first black matrix layer including a plurality of first black matrix blocks; the second substrate includes a second black matrix layer including a plurality of second black matrix blocks; each first black matrix block is positioned between two adjacent first support columns, and the first black matrix block and the first support columns are on the same layer and are made of the same material; each second black matrix block is located between two adjacent second support columns, and the second black matrix block and the second support columns are in the same layer and are made of the same material.
In some embodiments, two adjacent first electrodes abutting against the same first support pillar are symmetrical, and two adjacent first electrodes at two ends of the same first black matrix block are symmetrical; two adjacent second electrodes abutting against the same second supporting column are symmetrical, and two adjacent second electrodes positioned at two ends of the same second black matrix block are symmetrical; each first electrode is staggered with the corresponding second electrode.
In some embodiments, the height of each first support column is three times the height of the corresponding first black matrix block; the height of each second supporting column is three times of the height of the corresponding second black matrix block.
In some embodiments, each of the first black matrix blocks is aligned with a corresponding one of the second support columns, and each of the second black matrix blocks is aligned with a corresponding one of the first support columns.
In some embodiments, an included angle between the side surface of the first electrode and the display surface of the liquid crystal display panel is a first included angle, an included angle between the side surface of the second electrode and the display surface of the liquid crystal display panel is a second included angle, and ranges of the first included angle and the second included angle are: 45 to 60 degrees.
The application also provides a manufacturing method of the liquid crystal display panel, which comprises the following steps:
providing a first substrate comprising a first substrate;
forming a first black matrix layer on the first substrate;
carrying out photoetching process on the first black matrix layer by adopting a first halftone mask plate to form a plurality of first support columns and a plurality of first black matrix blocks, wherein the heights of each first support column and the corresponding first black matrix block are different, and each first support column and the corresponding first black matrix block are arranged at intervals;
forming a first electrode layer on the plurality of first support pillars and the plurality of first black matrix blocks;
performing photolithography processing on the first electrode layer by using a second halftone mask plate to form a plurality of spaced first electrodes, wherein each first electrode abuts against a corresponding first support column, two adjacent first electrodes abutting against the same first support column are symmetrical, and two adjacent first electrodes located at two ends of the same first black matrix block are symmetrical;
providing a second substrate comprising a second substrate;
forming a second black matrix layer on the second substrate;
performing photolithography processing on the second black matrix layer by using a third halftone mask plate to form a plurality of second support columns and a plurality of second black matrix blocks, wherein the height of each second support column is different from that of the corresponding second black matrix block, and each second support column is arranged at an interval with the corresponding second black matrix block;
forming a second electrode layer on the plurality of second support columns and the plurality of second black matrix blocks;
performing photolithography processing on the second electrode layer by using a fourth halftone mask plate to form a plurality of spaced second electrodes, wherein each second electrode abuts against a corresponding second supporting column, two adjacent second electrodes abutting against the same second supporting column are symmetrical, and two adjacent second electrodes located at two ends of the same second black matrix block are symmetrical;
and performing box-forming process treatment on the first substrate and the second substrate, wherein a blue-phase liquid crystal layer is positioned between the first electrodes and the second electrodes, the electric field intensity direction of a parallel electric field formed by each first electrode and the corresponding second electrode is inclined relative to the display surface of the liquid crystal display panel, each first black matrix block is aligned with the corresponding second support column, and each second black matrix block is aligned with the corresponding first support column.
Compared with the prior art, the liquid crystal display panel and the manufacturing method thereof provided by the invention have the beneficial effects that:
the invention provides a liquid crystal display panel, comprising: a first substrate including a plurality of first electrodes; a second substrate disposed opposite to the first substrate, and including a plurality of second electrodes disposed opposite to the plurality of first electrodes; and a blue phase liquid crystal layer; the electric field intensity direction of a parallel electric field formed by each first electrode and the corresponding second electrode is inclined relative to the display surface of the liquid crystal display panel; the parallel inclined electric field is formed between the first substrate and the second substrate, so that the driving voltage of the liquid crystal display panel adopting blue phase liquid crystal is reduced, and the problem that the driving voltage of the liquid crystal above the electric field is insufficient when a vertical electric field is used is avoided.
Drawings
Fig. 1 is a schematic view of a first structure of a liquid crystal display panel according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a second structure of the liquid crystal display panel according to the embodiment of the invention.
Fig. 3 is a schematic diagram of a third structure of a liquid crystal display panel according to an embodiment of the invention.
Fig. 4(a) -4 (k) are process flow diagrams of the liquid crystal display panel according to the embodiment of the invention.
Fig. 5 is a schematic flow chart of a liquid crystal display panel according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention provides a liquid crystal display panel and a manufacturing method thereof, and particularly refers to fig. 1 to 5.
The driving voltage generally required in the use process of the existing blue phase liquid crystal is greater than the driving voltage of a general liquid crystal display panel, and when a parallel vertical electric field is adopted, the electric field intensity of the liquid crystal display panel is smaller on one side closer to a color film substrate, so that when the blue phase liquid crystal is used, in order to ensure the normal driving and display of the whole liquid crystal display panel, a larger voltage must be loaded to increase the penetrating power of the whole electric field, and the voltage of the whole electric field is larger. Therefore, the present invention provides a liquid crystal display panel and a method for fabricating the same to solve the above-mentioned problems.
Fig. 1 is a schematic view of a first structure of a liquid crystal display panel according to an embodiment of the invention. According to the liquid crystal display panel 1 provided by the invention, the liquid crystal display panel 1 is in a cube shape, and eight outer corners of the liquid crystal display panel 1 are all in a round angle structure, so that inconvenience in use and even scratching of fingers of a user are avoided. When the liquid crystal display panel 1 is used, if the display surface of the liquid crystal display panel is facing to eyes of a user, that is, the display surface is parallel to eyes of the user, the user can obtain an optimal viewing angle of the display surface.
The display surface is a page in the liquid crystal display panel 1 for displaying various real-time picture information to a user.
The liquid crystal display panel 1 extends in three directions, and the first direction Z is a direction perpendicular to a plane where a display surface of the liquid crystal display panel 1 is located, and may be herein understood as a thickness direction of the liquid crystal display panel 1; the second direction X is a direction in the display surface of the liquid crystal display panel 1 such that the first substrate 11 extends laterally, which may be understood herein as a longitudinal direction of the liquid crystal display panel 1, and the first direction Z is perpendicular to the second direction X; the third direction Y is a direction in the display surface of the liquid crystal display panel 1 such that the first substrate 11 extends in the longitudinal direction, and may be understood herein as a width direction of the liquid crystal display panel 1, and the third direction Y is perpendicular to both the first direction Z and the second direction X.
Fig. 2 is a schematic diagram of a second structure of the liquid crystal display panel according to the embodiment of the invention. Which is also a cross-sectional view of the liquid crystal display panel 1 along a-a in fig. 1. As can be seen from fig. 2, the liquid crystal display panel 1 includes: a first substrate 11 including a plurality of first electrodes 111; a second substrate 12 disposed opposite to the first substrate 11 and including a plurality of second electrodes 121 disposed opposite to the plurality of first electrodes 111; and a blue phase liquid crystal layer 13 between the plurality of first electrodes 111 and the plurality of second electrodes 121; the electric field intensity direction of the parallel electric field formed by each first electrode 111 and the corresponding second electrode 121 is inclined with respect to the display surface of the liquid crystal display panel 1.
The blue phase liquid crystal layer 13 includes a plurality of blue phase liquid crystals 131, the blue phase liquid crystals 131 have a self-assembled 3D lattice characteristic, but retain the fluid nature, the lattice parameter is easy to change, and the liquid crystal layer can have different photoelectric characteristics, and is an excellent adjustable photonic crystal; and has better colority. Further, unlike the nematic liquid crystal which is represented by an anisotropic medium when no driving voltage is applied, the blue phase liquid crystal 131 is represented by an isotropic medium when no driving voltage is applied, and thus in the liquid crystal display panel 1, the first alignment layer may be omitted on the first substrate, and the second alignment layer may be omitted on the second substrate, thereby saving the manufacturing process time and the material cost.
In order not to affect the light extraction rate of the liquid crystal display panel 1, the first electrode 111 and the second electrode 121 are both made of a material with high transparency and good conductivity, such as one or a combination of more of a transparent conductive photoresist material, a conductive medium, a film forming resin, a photosensitizer, a solvent, and an additive.
It is understood that the liquid crystal display panel 1 includes: a first substrate 11, wherein a plurality of first electrodes 111 are arranged on one side of the first substrate 11 close to the second substrate 12, each first electrode 111 is in the shape of a right triangular prism, and one of the right-angled sides of the first electrode 111 is bonded to one side of the first substrate 11 close to the second substrate 12, that is, an adhesive substance or the like is present between one of the right-angled sides of the first electrode 111 and the first substrate 11, so as to ensure the connection stability between the first electrode 111 and the first substrate 11; the first substrate 11 is arranged right opposite to the second substrate 12, a plurality of second electrodes 121 are arranged on one side of the second substrate 12 close to the first substrate 11, and similarly, one right-angle surface of each second electrode 121 is bonded to one side of the second substrate 12 close to the first substrate 11; the first electrodes 111 and the second electrodes 121 are disposed in a staggered manner, because the first electrodes 111 are disposed on the first substrate 11, and the second electrodes 121 are disposed on the second substrate 12, the first electrodes 111 and the second electrodes 121 are disposed in an up-down staggered manner, and the inclined surface of each first electrode 111 is disposed opposite to the inclined surface of each second electrode 121, that is, each first electrode 111 and each second electrode 121 form an oblique electric field, and because the length of the oblique electric field along the first direction Z under the same driving voltage is smaller than the length of the vertical electric field along the first direction Z, the oblique electric field is used, the electric field strength of each position in the electric field is approximately equal, and when the blue-phase liquid crystal 131 is driven, the electric field stability is strong without adding an additional driving voltage; further, the second electrode 121 and the first electrode 111 are made of the same material and have the same shape, so as to ensure that the electric fields formed by the first electrode 111 and the second electrode 121 are equal everywhere.
Further, the side surface of each first electrode 111 close to the corresponding second electrode 121 is inclined with respect to the display surface.
It is understood that, since the first electrode 111 and the second electrode 121 are both right triangular prisms, and one of the right-angled surfaces of the first electrode 111 is bonded to the first substrate 11, and one of the right-angled surfaces of the second electrode 121 is bonded to the second substrate 12, a certain first included angle α 1 exists between the inclined surface of the first electrode 111 and the first substrate 11, and a certain second included angle α 2 also exists between the inclined surface of the second electrode 121 and the second substrate 12, so that the side surface of each first electrode 111 close to each second electrode 121 is inclined with respect to the display surface (i.e., the plane where the second direction X and the third direction Y are located).
Further, a side surface of each of the second electrodes 121 close to the corresponding first electrode 111 is parallel to the side surface of the corresponding first electrode 111.
The side surface of the first electrode 111 is an inclined surface of the first electrode 111 having a triangular prism shape, and the side surface of the second electrode 121 is an inclined surface of the second electrode 121 having a triangular prism shape.
It can be understood that, referring to fig. 2, the first electrode 111 and the second electrode 121 have the same shape, and the right-angle side of the first electrode 111 leaning on the first supporting column 112a is equal to the right-angle side of the second electrode 121 leaning on the second supporting column 122a, and then according to the equilateral theorem of equivalence, the first included angle α 1 is equal to the second included angle α 2. According to the parallel line property theorem, the inner stagger angles are equal, and the two straight lines are parallel. Since the first substrate 11 and the second substrate 12 are parallel to the second direction X, the inclined plane of the first electrode 111 is parallel to the inclined plane of the second electrode 121, that is, the first electrode 111 and the second electrode 121 form an inclined parallel electric field, so as to reduce the driving voltage of the liquid crystal display panel 1. Further, adjacent to the first electrode 111 and the second electrode 121, a distance between a right-angled surface of the first electrode 111 leaning on the first support pillar 112a and a right-angled surface of the second electrode 121 leaning on the second support pillar 122a along the second direction X is a first length L1, that is, a maximum distance between the first electrode 111 and the second electrode 121 is the first length L1, the first length L1 is equal to a length of each sub-pixel unit along the second direction X, in other words, a width of each sub-pixel unit is the first length L1, each liquid crystal display panel 1 includes a plurality of sub-pixel units, and each sub-pixel unit includes: a red sub-pixel unit (R), a green sub-pixel unit (G) and a blue sub-pixel unit (B); or a red sub-pixel unit (R), a green sub-pixel unit (G), a blue sub-pixel unit (B) and a white sub-pixel unit (W); or a red sub-pixel unit (R), a green sub-pixel unit (G), a blue sub-pixel unit (B), a yellow sub-pixel unit (Y), etc., the user can set the color of the display panel according to his/her own needs.
Further, the first substrate 11 includes a plurality of first supporting pillars 112a, and the second substrate includes a plurality of second supporting pillars 122 a; each of the first electrodes 111 abuts against the first supporting column 112a, and each of the second electrodes 121 abuts against the second supporting column 122 a.
Wherein, abutting means that two objects are in contact and have certain interaction force so as to improve the positioning stability of the two objects in a certain direction. For example, one side of the first support column 112a and the surface of the first electrode 111 along the first direction Z abut against each other, so that the positioning stability of the first electrode 111 and the first support column 112a along the second direction X can be improved.
The first supporting column 112a and the second supporting column 122a are identical, that is, the material of the first supporting column 112a is identical to that of the second supporting column 122a, the length of the first supporting column 112a along the first direction Z is equal to that of the second supporting column 122a along the first direction Z, and the length of the first supporting column 112a along the second direction X is equal to that of the second supporting column 122a along the second direction X. Further, the first supporting column 112a and the second supporting column 122a are disposed between two adjacent sub-pixel units, and are used for preventing color mixing of the two adjacent sub-pixel units, so that the first supporting column 112a and the second supporting column 122a are made of materials with good light shielding performance.
It is understood that the first substrate 11 includes a plurality of the first supporting pillars 112a, and the second substrate 12 includes a plurality of the second supporting pillars 122 a; each of the first electrodes 111 abuts against the first supporting column 112a, and each of the second electrodes 121 abuts against the second supporting column 122 a. Further, the length of the first supporting column 112a along the first direction Z is greater than or equal to the length of the first electrode 111 along the first direction Z, the length of the second supporting column 122a along the first direction Z is greater than or equal to the length of the second electrode 121 along the first direction Z, and preferably, the length of the first supporting column 112a along the first direction Z is equal to the length of the first electrode 111 along the first direction Z, and the length of the second supporting column 122a along the first direction Z is equal to the length of the second electrode 121 along the first direction Z, so that the positioning stability of the first electrode 111 and the second electrode 121 along the second direction X can be sufficiently ensured, and the materials of the first supporting column 112a and the second supporting column 122a can be saved. Further, the first supporting column 112a is identical to the second supporting column 122a, the first black matrix block 112b is identical to the second black matrix block 122b, and the length of the first supporting column 112a along the second direction X is equal to the length of the first black matrix block 112b along the second direction X; since the length of the first supporting column 112a along the second direction X is a second length L2, the lengths of the second supporting column 122a, the first black matrix block 112b and the second black matrix block 122b along the second direction X are all the second length L2.
Furthermore, on one side of the first substrate 11, two adjacent first electrodes 111 are arranged in a staggered manner; on the second substrate 12 side, two adjacent second electrodes 121 are disposed in a staggered manner.
It can be understood that, referring to fig. 2, a plurality of the first electrodes 111, a plurality of the first support pillars 112a, and a plurality of the first black matrix blocks 112b are disposed at intervals on one side of the first substrate 11, and two adjacent first electrodes 111 abut against one first support pillar 112a, or are spaced apart by a distance and a first black matrix block 112b is disposed in the middle; similarly, a plurality of the second electrodes 121, a plurality of the second supporting pillars 122a, and a plurality of the second black matrix blocks 122b are disposed at intervals on one side of the second substrate 12, and two adjacent second electrodes 121 abut against one second supporting pillar 122a, or one second black matrix block 122b is disposed at a distance and in the middle.
Further, the first substrate 11 includes a first black matrix layer 112, and the first black matrix layer 112 includes a plurality of first black matrix blocks 112 b; the second substrate 12 includes a second black matrix layer 122, and the second black matrix layer 122 includes a plurality of second black matrix blocks 122 b; each first black matrix block 112b is located between two adjacent first support pillars 112a, and the first black matrix block 112b is in the same layer and material as the first support pillars 112 a; each second black matrix block 122b is located between two adjacent second supporting pillars 122a, and the second black matrix block 122b is in the same layer and material as the second supporting pillars 122 a.
It is understood that, in order to ensure sufficient light shielding of the liquid crystal display panel 1, a light shielding body corresponding to the first support column 112a on the first substrate 11 needs to be disposed on the second substrate 12, and similarly, a light shielding body corresponding to the second support column 122a on the second substrate 12 needs to be disposed on the first substrate 11. Therefore, in the embodiment of the present invention, the second black matrix block 122b is disposed on the second substrate 12 and opposite to the first supporting column 112a of the first substrate 11, and the first black matrix block 112b is disposed on the first substrate 11 and opposite to the second supporting column 122a of the second substrate 12, so as to sufficiently ensure the light shielding between two adjacent sub-pixel units and avoid the color mixing phenomenon between two adjacent sub-pixel units. Since the first support pillars 112a and the first black matrix blocks 112b are made of the same material and are disposed on the same layer on one side of the first substrate 11, the first support pillars 112a and the first black matrix blocks 112b disposed on the first substrate 11 are both made of the first black matrix layer 112 through a mask; similarly, since the second supporting pillars 122a and the second black matrix blocks 122b are made of the same material and are disposed on the same layer on one side of the second substrate 12, the second supporting pillars 122a and the second black matrix blocks 122b disposed on the second substrate 12 are both made of the second black matrix layer through a mask.
Further, two adjacent first electrodes abutting against the same first support column 112a are symmetrical, and two adjacent first electrodes at two ends of the same first black matrix block 112b are symmetrical; two adjacent second electrodes abutting against the same second supporting column 122a are symmetrical, and two adjacent second electrodes at two ends of the same second black matrix block 122b are symmetrical; each first electrode is staggered with the corresponding second electrode.
It is to be understood that, since the electrodes disposed at one side of the first substrate 11 are the first electrodes 111, each of the first electrodes 111 has a shape of a right triangular prism, and each of the first support pillars 112a has a shape of a rectangle, when the lengths of the first electrodes 111 abutting on both sides of each of the first support pillars 112a in the first direction Z are equal, each of the electric fields in the liquid crystal display panel is guaranteed to be an oblique parallel electric field, and the first support pillars 112a can be maximally utilized. Therefore, two adjacent first electrodes abutting against the same first support column 112a are symmetrical; referring to fig. 3, each of the first electrode bodies 11C includes: one first support column 112a and two first electrodes 111 symmetrically disposed about the first support column 112a, and only one first black matrix block 112b is included between two adjacent first electrode bodies 11C, and the distance between each first electrode body 11C and the adjacent first black matrix block 112b is equal, so that two adjacent first electrode bodies 11C are symmetric about the first black matrix block 112b, that is, two adjacent first electrodes at both ends of the same first black matrix block 112b are symmetric; similarly, two adjacent second electrodes abutting against the same second supporting pillar 122a are symmetrical; each of the second electrode bodies 12C includes: one of the second support columns 122a and two of the second electrodes 121 symmetrically disposed with respect to the second support column 122a, two adjacent second electrode bodies 12C are symmetrical with respect to the second black matrix block 122b, that is, two adjacent second electrodes 121 located at both ends of the same second black matrix block 122b are symmetrical. Further, each first electrode 111 and the corresponding second electrode 121 are staggered along the second direction X, so that a distance between a right-angle surface of the first electrode 111 leaning against the first support column 112a and a right-angle surface of the second electrode 121 leaning against the second support column 122a is a distance of one sub-pixel unit, and a certain position is reserved for the blue-phase liquid crystal 131, so as to ensure normal light emission of each sub-pixel unit.
Further, the height of each first support column 112a is three times the height of the corresponding first black matrix block 112 b; each of the second supporting columns 122a has a height three times that of the corresponding second black matrix block 122 b.
It is understood that, on the first substrate 11 side, the length of the first support column 112a along the first direction Z is greater than the length of the first black matrix block 112b along the first direction Z, and the length of the first support column 112a along the first direction Z is proportional to the length of the first black matrix block 112b along the first direction Z; on the second substrate 12 side, the length of the second supporting column 122a along the first direction Z is greater than the length of the second black matrix block 122b along the first direction Z, and the length of the second supporting column 122a along the first direction Z is proportional to the length of the second black matrix block 122b along the first direction Z; preferably, the length of each of the first support pillars 112a in the first direction Z is three times as long as the length of the corresponding first black matrix block 112b in the first direction Z; the length of each of the second support columns 122a in the first direction Z is three times the length of the corresponding second black matrix block 122b in the first direction Z; when the ratio of the height of the first supporting column 112a to the height of the first black matrix block 112b is 3:1, and the ratio of the height of the second supporting column 122a to the height of the second black matrix block 122b is 3:1, materials are saved, the light shielding performance between two adjacent sub-pixel units in the liquid crystal display panel 1 is best, and the positioning stability of the first electrode 111 and the second electrode 121 along the second direction X can be ensured to the greatest extent; of course, the ratio of the height of the first supporting pillar 112a to the height of the first black matrix block 112b or the ratio of the height of the second supporting pillar 122a to the height of the second black matrix block 122b includes, but is not limited to, 3:1, other ratios are also possible, but it is necessary to ensure that the ratio of the height of the first supporting column 112a to the height of the first black matrix block 112b or the ratio of the height of the second supporting column 122a to the height of the second black matrix block 122b is greater than or equal to 1.
Further, each of the first black matrix blocks 112b is aligned with the corresponding second supporting column 122a, and each of the second black matrix blocks 122b is aligned with the corresponding first supporting column 112 a.
It can be understood that, in order to sufficiently ensure the light-shielding property between two adjacent sub-pixel units, avoid the color mixing between two adjacent sub-pixel units, and not increase the length of the blue-phase liquid crystal layer 13 along the first direction Z, the embodiment of the invention specifically arranges the second black matrix block 122b on the second substrate 12 at the position corresponding to the first supporting column 112a on the side of the first substrate 11, and arranges the first black matrix block 112b on the first substrate 11 at the position corresponding to the second supporting column 122a on the side of the second substrate 12.
Further, an included angle between the side surface of the first electrode 111 and the display surface of the liquid crystal display panel 1 is a first included angle α 1, an included angle between the side surface of the second electrode 121 and the display surface of the liquid crystal display panel 1 is a second included angle α 2, and the ranges of the first included angle α 1 and the second included angle α 2 are: 45 to 60 degrees.
It can be understood that, since the first substrate 11 is disposed on the side of the first electrode 111, the second substrate 12 is disposed on the side of the second electrode 121 and is parallel to the display surface of the lcd panel 1, the inclined surface of the first electrode 111 and the side of the first substrate 11 form the first included angle α 1, and the inclined surface of the second electrode 121 and the side of the second substrate 12 form the second included angle α 2, the first included angle α 1 is formed between the side surface of the first electrode 111 and the display surface of the lcd panel 1, the second included angle α 2 is formed between the side surface of the second electrode 121 and the display surface of the lcd panel 1, and the range of the first included angle α 1 and the second included angle α 2 is 45 degrees to 60 degrees, which can ensure a certain reserved space for the blue-phase liquid crystal 131, the driving voltage of the liquid crystal display panel 1 is also reduced.
Further, a sealant 132 is disposed between the first substrate 11 and the second substrate 12 and near the edge around the liquid crystal display panel 1, and the sealant 132 is used for encapsulating the first substrate 11 and the second substrate 12, so as to prevent the blue phase liquid crystal 131 disposed in the first substrate 11 and the second substrate 12 from leaking from the inside of the liquid crystal display panel 1.
Fig. 4(a) to 4(k) are process flow diagrams of the liquid crystal display panel according to the embodiment of the invention. Fig. 5 is a schematic flow chart of a liquid crystal display panel according to an embodiment of the invention. The invention also provides a manufacturing method of the liquid crystal display panel, which comprises the following steps:
s101, providing a first substrate 11, wherein the first substrate 11 comprises a first substrate;
the first substrate may be a glass substrate or a resin substrate, and is preferably made of a highly light-transmitting material.
S102, forming a first black matrix layer 112 on the first substrate;
the first black matrix layer 112 is laid on the first substrate 11 close to the second substrate 12 in a full-surface shape, so as to form the first support pillars 112a and the first black matrix blocks 112b subsequently.
S103, performing a photolithography process on the first black matrix layer 112 by using a first halftone mask to form a plurality of first support pillars 112a and a plurality of first black matrix blocks 112b, where the heights of each first support pillar 112a and the corresponding first black matrix block 112b are different, and each first support pillar 112a and the corresponding first black matrix block 112b are arranged at an interval;
wherein, the exposure of the first black matrix layer 112 adopts a negative photoresist material.
It is to be understood that, since the distances between the adjacent first support pillars 112a and the first black matrix blocks 112b are equal, the first support pillars 112a and the first black matrix blocks 112b are formed by the first halftone mask plate through one-time photomask exposure, since the length of the first support pillars 112a along the first direction Z is not equal to the length of the first black matrix blocks 112b along the first direction Z, if one-time exposure forming is required, the exposure holes on the first halftone mask plate just at the first support pillars 112a are first exposure holes, the exposure holes on the first halftone mask plate just at the first black matrix blocks 112b are second exposure holes, and the distance between the adjacent first exposure holes and the adjacent second exposure holes is equal to the distance between the adjacent first support pillars 112a and the adjacent first black matrix blocks 112b, the lengths of the first support pillars 112a and the first black matrix blocks 112b in the first direction Z are inversely proportional to the exposure amounts of the first exposure hole and the second exposure hole and proportional to the transmittance of the first halftone mask.
S104, forming a first electrode layer 111' on the plurality of first support pillars 112a and the plurality of first black matrix blocks;
s105, performing a photolithography process on the first electrode layer 111' by using a second halftone mask to form a plurality of spaced first electrodes 111, wherein each first electrode 111 abuts against a corresponding first support pillar 112a, two adjacent first electrodes 111 abutting against the same first support pillar 112a are symmetrical, and two adjacent first electrodes 111 located at two ends of the same first black matrix block 112b are symmetrical;
it is understood that, according to the positions of the first support pillar 112a and the first black matrix block 112b, the length of the first support pillar 112a and the first black matrix block 112b along the second direction is a first length L1, and the length of each sub-pixel unit along the second direction X is also the first length L1, so that the distance between the adjacent first support pillar 112a and the first black matrix block 112b along the second direction X is the width of one sub-pixel unit; the second half-tone mask plate is provided with a third exposure hole and a fourth exposure hole, and the shapes of the adjacent third exposure hole and the second exposure hole are symmetrically arranged about the first support column 112a and are gradually transparent exposure holes.
S106, providing a second substrate, wherein the second substrate comprises a second substrate;
similarly, the second substrate may be made of the same material as the first substrate.
S107, forming a second black matrix layer 122 on the second substrate;
s108, performing a photolithography process on the second black matrix layer 122 by using a third halftone mask to form a plurality of second supporting pillars 122a and a plurality of second black matrix blocks 122b, where each of the second supporting pillars 122a and the corresponding second black matrix block 122b have different heights, and each of the second supporting pillars 122a and the corresponding second black matrix block 122b are disposed at intervals;
s109, forming a second electrode layer 121' on the plurality of second supporting columns 122a and the plurality of second black matrix blocks 122 b;
s110, performing a photolithography process on the second electrode layer 121' by using a fourth mask to form a plurality of spaced second electrodes 121, wherein each second electrode 121 abuts against a corresponding second supporting pillar 122a, two adjacent second electrodes 121 abutting against the same second supporting pillar 122a are symmetrical, and two adjacent second electrodes 121 located at two ends of the same second black matrix block 122b are symmetrical;
it is to be understood that, since the first support columns 112a and the second support columns 122a are identical, the first black matrix block 112b and the second black matrix block 122b are identical, the first support columns 112a are disposed opposite to the second black matrix block 122b, and the second support columns 122a are disposed opposite to the first black matrix block 112b, the third halftone mask plate and the first halftone mask plate have the same shape, but the third exposure holes and the second exposure holes have the same positions and shapes, and the fourth exposure holes and the first exposure holes have the same positions and shapes.
S111, performing a box process on the first substrate 11 and the second substrate 12, wherein the blue phase liquid crystal layer 13 is located between the first electrodes 111 and the second electrodes 121, the intensity direction of the parallel electric field formed by each first electrode 111 and the corresponding second electrode 121 is inclined with respect to the display surface of the liquid crystal display panel 1, each first black matrix block 112b is aligned with the corresponding second supporting column 122a, and each second black matrix block 122b is aligned with the corresponding first supporting column 112 a.
The liquid crystal display panel and the manufacturing method thereof provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the embodiment of the invention, and the description of the embodiment is only used for helping to understand the technical scheme and the core idea of the invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A liquid crystal display panel, comprising:
a first substrate including a plurality of first electrodes;
a second substrate disposed opposite to the first substrate, and including a plurality of second electrodes disposed opposite to the plurality of first electrodes; and
a blue phase liquid crystal layer between the plurality of first electrodes and the plurality of second electrodes;
the electric field intensity direction of the parallel electric field formed by each first electrode and the corresponding second electrode is inclined relative to the display surface of the liquid crystal display panel.
2. The liquid crystal display panel according to claim 1, wherein a side surface of each of the first electrodes adjacent to the corresponding second electrode is inclined with respect to the display surface.
3. The liquid crystal display panel according to claim 2, wherein a side surface of each of the second electrodes adjacent to the corresponding first electrode is parallel to the side surface of the corresponding first electrode.
4. The liquid crystal display panel according to claim 1, wherein the first substrate includes a plurality of first support columns, and the second substrate includes a plurality of second support columns; each of the first electrodes abuts against the first support column, and each of the second electrodes abuts against the second support column.
5. The liquid crystal display panel according to claim 4, wherein the first substrate includes a first black matrix layer including a plurality of first black matrix blocks; the second substrate includes a second black matrix layer including a plurality of second black matrix blocks; each first black matrix block is positioned between two adjacent first support columns, and the first black matrix block and the first support columns are on the same layer and are made of the same material; each second black matrix block is located between two adjacent second support columns, and the second black matrix block and the second support columns are in the same layer and are made of the same material.
6. The liquid crystal display panel according to claim 5, wherein two adjacent first electrodes abutting against the same first support column are symmetrical, and two adjacent first electrodes at two ends of the same first black matrix block are symmetrical; two adjacent second electrodes abutting against the same second supporting column are symmetrical, and two adjacent second electrodes positioned at two ends of the same second black matrix block are symmetrical; each first electrode is staggered with the corresponding second electrode.
7. The liquid crystal display panel according to claim 5, wherein each of the first support columns has a height three times a height of the corresponding first black matrix block; the height of each second supporting column is three times of the height of the corresponding second black matrix block.
8. The liquid crystal display panel according to claim 5, wherein each of the first black matrix blocks is aligned with the corresponding second support column, and each of the second black matrix blocks is aligned with the corresponding first support column.
9. The LCD panel of claim 3, wherein an included angle between the side surface of the first electrode and the display surface of the LCD panel is a first included angle, an included angle between the side surface of the second electrode and the display surface of the LCD panel is a second included angle, and the ranges of the first included angle and the second included angle are: 45 to 60 degrees.
10. A method for manufacturing a liquid crystal display panel is characterized by comprising the following steps:
providing a first substrate comprising a first substrate;
forming a first black matrix layer on the first substrate;
carrying out photoetching process on the first black matrix layer by adopting a first halftone mask plate to form a plurality of first support columns and a plurality of first black matrix blocks, wherein the heights of each first support column and the corresponding first black matrix block are different, and each first support column and the corresponding first black matrix block are arranged at intervals;
forming a first electrode layer on the plurality of first support pillars and the plurality of first black matrix blocks;
performing photolithography processing on the first electrode layer by using a second halftone mask plate to form a plurality of spaced first electrodes, wherein each first electrode abuts against a corresponding first support column, two adjacent first electrodes abutting against the same first support column are symmetrical, and two adjacent first electrodes located at two ends of the same first black matrix block are symmetrical;
providing a second substrate comprising a second substrate;
forming a second black matrix layer on the second substrate;
performing photolithography processing on the second black matrix layer by using a third halftone mask plate to form a plurality of second support columns and a plurality of second black matrix blocks, wherein the height of each second support column is different from that of the corresponding second black matrix block, and each second support column is arranged at an interval with the corresponding second black matrix block; forming a second electrode layer on the plurality of second support columns and the plurality of second black matrix blocks;
performing photolithography processing on the second electrode layer by using a fourth halftone mask plate to form a plurality of spaced second electrodes, wherein each second electrode abuts against a corresponding second supporting column, two adjacent second electrodes abutting against the same second supporting column are symmetrical, and two adjacent second electrodes located at two ends of the same second black matrix block are symmetrical;
and performing box-forming process treatment on the first substrate and the second substrate, wherein a blue-phase liquid crystal layer is positioned between the first electrodes and the second electrodes, the electric field intensity direction of a parallel electric field formed by each first electrode and the corresponding second electrode is inclined relative to the display surface of the liquid crystal display panel, each first black matrix block is aligned with the corresponding second support column, and each second black matrix block is aligned with the corresponding first support column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485068.3A CN113189818A (en) | 2021-04-30 | 2021-04-30 | Liquid crystal display panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485068.3A CN113189818A (en) | 2021-04-30 | 2021-04-30 | Liquid crystal display panel and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113189818A true CN113189818A (en) | 2021-07-30 |
Family
ID=76983692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110485068.3A Pending CN113189818A (en) | 2021-04-30 | 2021-04-30 | Liquid crystal display panel and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113189818A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529601A (en) * | 2013-11-08 | 2014-01-22 | 河北工业大学 | Blue-phase liquid crystal display with low driving voltage and high transmittance |
| US20140022494A1 (en) * | 2012-07-23 | 2014-01-23 | University Of Central Florida Research Foundation Inc. | Liquid crystal display |
| CN103869557A (en) * | 2014-03-25 | 2014-06-18 | 昆山龙腾光电有限公司 | Blue phase liquid crystal display device |
| CN109633998A (en) * | 2019-01-16 | 2019-04-16 | 京东方科技集团股份有限公司 | A kind of liquid crystal device |
-
2021
- 2021-04-30 CN CN202110485068.3A patent/CN113189818A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140022494A1 (en) * | 2012-07-23 | 2014-01-23 | University Of Central Florida Research Foundation Inc. | Liquid crystal display |
| CN103529601A (en) * | 2013-11-08 | 2014-01-22 | 河北工业大学 | Blue-phase liquid crystal display with low driving voltage and high transmittance |
| CN103869557A (en) * | 2014-03-25 | 2014-06-18 | 昆山龙腾光电有限公司 | Blue phase liquid crystal display device |
| CN109633998A (en) * | 2019-01-16 | 2019-04-16 | 京东方科技集团股份有限公司 | A kind of liquid crystal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101979011B1 (en) | color filter substrate and liquid crystal display device including the same | |
| CN107290909B (en) | Array substrate and liquid crystal display panel | |
| KR101127588B1 (en) | Liquid Crystal Display Panel and Method of Manufacturing the same | |
| CN111338108B (en) | Display device | |
| CN101685232B (en) | Array substrate, method of manufacturing the same and liquid crystal display apparatus having the same | |
| WO2019085224A1 (en) | Array substrate and display panel | |
| WO2015018157A1 (en) | Array substrate, colour film substrate, display device and manufacturing method for alignment layer | |
| CN101206273A (en) | Color filters and liquid crystal display panel using the same | |
| KR102252148B1 (en) | Liquid crystal display panel and liquid crystal display device | |
| CN104570456A (en) | Liquid crystal display | |
| WO2021196282A1 (en) | Liquid crystal display panel and manufacturing method therefor | |
| US7580105B2 (en) | Liquid crystal display devices | |
| CN108873502B (en) | Liquid crystal display device and method of fabricating the same | |
| CN112666741B (en) | Display panel and manufacturing method thereof | |
| CN111028801B (en) | Display panel and display device | |
| JP2006343615A (en) | Liquid crystal device and electronic apparatus | |
| CN113189818A (en) | Liquid crystal display panel and manufacturing method thereof | |
| US9244303B2 (en) | Wide-viewing-angle liquid crystal display panel, color film base plate and manufacturing method thereof as well as display device | |
| KR20150137278A (en) | Array substrate and liquid crystal display device inluding the same | |
| US9933651B2 (en) | Liquid crystal display comprising a plurality of color filters each having at least one protrusion and at least one chamfered portion at different edges of a pixel area | |
| KR20010077571A (en) | Liquid Crystal Display Apparatus With Wide Viewing Angle and Fabricating Method For Same | |
| KR20060027812A (en) | Liquid crystal display and method of manufacturing the liquid crystal display | |
| KR20130072469A (en) | Mask for exposure and method of fabricating liquid crystal display device using the same | |
| KR100989165B1 (en) | In-Plane Switching Mode Liquid Crystal Display device and method for fabricating the same | |
| KR102133871B1 (en) | Liquid crystal panel and liquid crystal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210730 |