WO2017124595A1 - 显示面板制作方法及液晶显示器 - Google Patents
显示面板制作方法及液晶显示器 Download PDFInfo
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- WO2017124595A1 WO2017124595A1 PCT/CN2016/074213 CN2016074213W WO2017124595A1 WO 2017124595 A1 WO2017124595 A1 WO 2017124595A1 CN 2016074213 W CN2016074213 W CN 2016074213W WO 2017124595 A1 WO2017124595 A1 WO 2017124595A1
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- electrode plate
- electrode
- electric field
- alignment film
- alignment
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Classifications
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- 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
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
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- 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
- G02F1/133354—Arrangements for aligning or assembling substrates
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- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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- 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
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- 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
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
Definitions
- the present invention relates to the field of display technologies, and in particular, to a display panel manufacturing method and a liquid crystal display.
- the display mode of the liquid crystal panel for television mainly adopts VA (Vertical) Alignment) technology and IPS (In Plane Switching) technology.
- VA technology includes MVA (Multi-domain Vertical) Alignment) Technology and PVA (Patterned Vertical) Alignment) technology.
- the optical alignment technology mainly uses ultraviolet light to optically align the alignment material with high light sensitivity and good stability, and the liquid crystal panel produced by the same does not need domain boundary, has high opening, high contrast, fast response and the like, and eliminates the traditional mode.
- the alignment film of the liquid crystal display needs to be aligned to effectively control the alignment of the liquid crystal molecules.
- the alignment technology mainly includes two types of rubbing type and non-rubbing type.
- the rubbing alignment is a contact-oriented mechanical friction on the surface of the polymer PI by a flannel roller.
- the energy supplied from the surface of the rubbing polymer causes the polymer main chain to be aligned due to the extension, thereby controlling the alignment of the liquid crystal.
- the advantage of this method is that it operates at room temperature, has a short friction time, and is highly mass-produced.
- the disadvantage is that the PI material has high polarity and high water absorption, and is easily deteriorated during storage or transportation to cause uneven alignment; problems such as dust particles, static electricity residue, and brush marks caused by friction are liable to lower the process yield.
- the photo-alignment technology belongs to the non-friction type alignment. The principle is that the photo-chemical reaction of the photopolymer monomer material is generated by ultraviolet light to generate anisotropy, and the liquid crystal molecules interact with the surface molecules of the alignment film. In order to achieve the minimum energy stable state, the liquid crystal molecules Arranged along the direction of the most defined force of the light alignment, improving the overall performance of the optical alignment product. Non-friction alignment avoids the problem of mechanical friction to the alignment film.
- the technical problem to be solved by the present invention is to provide a display panel manufacturing method and a liquid crystal display, which can improve the pretilt angle of liquid crystal molecules in the vertical direction and improve the contrast of the liquid crystal display.
- a technical solution adopted by the present invention is to provide a display panel manufacturing method, the method comprising: providing a first electrode plate, a second electrode plate, and a first electrode plate and a second electrode disposed opposite to each other An array substrate between the electrode plates; wherein the array substrate comprises at least a first transparent electrode and a first alignment film; and applying a first electric field perpendicular to the array substrate between the first electrode plate and the second electrode plate
- the first alignment film is subjected to a first optical alignment with a polarization direction parallel to the ultraviolet light of the array substrate; wherein the first electric field is an alternating electric field or a direct current electric field; and the third electrode plate and the color filter substrate are provided oppositely; wherein the color filter substrate At least a second transparent electrode and a second alignment film are disposed, the second alignment film is located between the third electrode plate and the second transparent electrode; and an electric field direction is applied between the third electrode plate and the second transparent electrode perpendicular to the color filter substrate a second electric field, and
- the first electrode plate and the second electrode plate comprise a plurality of strip electrodes, and each strip electrode of the first electrode plate and the strip electrode of the second electrode plate are formed in one-to-one correspondence to form a plurality of strip electrode groups; Applying a first electric field between the first electrode plate and the second electrode plate, and performing a first photoalignment on the first alignment film, comprising: applying an electric field between each strip electrode group, and performing the first alignment film The third light is aligned.
- the electric field applied by the adjacent two strip electrode groups is different in magnitude.
- the two regions on the first alignment film corresponding to the two adjacent strip electrodes have different angles between the illumination direction and the array substrate when the third optical alignment is performed.
- the third electrode plate and the color filter substrate are disposed oppositely, and the method includes: providing a fourth electrode plate, a fifth electrode plate, and a color filter substrate disposed between the fourth electrode plate and the fifth electrode plate;
- the color filter substrate includes at least a third alignment film; a second electric field is applied between the third electrode plate and the second transparent electrode, and a second optical alignment is performed on the second alignment film, including: at the fourth electrode plate and the fifth A third electric field is applied between the electrode plates, and a fourth optical alignment is performed on the third alignment film.
- the fourth electrode plate and the fifth electrode plate comprise a plurality of strip electrodes, and each strip electrode of the fourth electrode plate and the strip electrode of the fifth electrode plate are formed in one-to-one correspondence to form a plurality of strip electrode groups; Applying a third electric field between the fourth electrode plate and the fifth electrode plate, and performing fourth optical alignment on the third alignment film, comprising: applying an electric field between each strip electrode group, and performing a third alignment film The fifth light is aligned.
- the first electrode plate, the second electrode plate, the third electrode plate, the fourth electrode plate, and the fifth electrode plate each include a transparent substrate and a transparent electrode layer disposed on the transparent substrate.
- another technical solution adopted by the present invention is to provide a display panel manufacturing method, the method comprising: providing a first electrode plate, a second electrode plate, and a first electrode plate and a first electrode plate An array substrate between the two electrode plates; wherein the array substrate includes at least a first transparent electrode and a first alignment film; applying a first electric field between the first electrode plate and the second electrode plate, and performing a first alignment film on the first alignment film a light alignment; providing a third electrode plate and a color filter substrate disposed oppositely; wherein the color filter substrate comprises at least a second transparent electrode and a second alignment film, and the second alignment film is located between the third electrode plate and the second transparent electrode Applying a second electric field between the third electrode plate and the second transparent electrode, and performing a second optical alignment on the second alignment film; and performing liquid crystal box processing on the array substrate and the color filter substrate to form a display panel.
- the first electric field and the second electric field are an alternating electric field or a direct current electric field, the first electric field direction is perpendicular to the array substrate, and the second electric field direction is perpendicular to the color filter substrate.
- the illumination used in the first optical alignment is ultraviolet light whose polarization direction is parallel to the array substrate
- the illumination used in the second optical alignment is ultraviolet light whose polarization direction is parallel to the color filter substrate.
- the first electrode plate and the second electrode plate comprise a plurality of strip electrodes, and each strip electrode of the first electrode plate and the strip electrode of the second electrode plate are formed in one-to-one correspondence to form a plurality of strip electrode groups; Applying a first electric field between the first electrode plate and the second electrode plate, and performing a first photoalignment on the first alignment film, comprising: applying an electric field between each strip electrode group, and performing the first alignment film The third light is aligned.
- the electric field applied by the adjacent two strip electrode groups is different in magnitude.
- the two regions on the first alignment film corresponding to the two adjacent strip electrodes have different angles between the illumination direction and the array substrate when the third optical alignment is performed.
- the third electrode plate and the color filter substrate are disposed oppositely, and the method includes: providing a fourth electrode plate, a fifth electrode plate, and a color filter substrate disposed between the fourth electrode plate and the fifth electrode plate;
- the color filter substrate includes at least a third alignment film; a second electric field is applied between the third electrode plate and the second transparent electrode, and a second optical alignment is performed on the second alignment film, including: at the fourth electrode plate and the fifth A third electric field is applied between the electrode plates, and a fourth optical alignment is performed on the third alignment film.
- the fourth electrode plate and the fifth electrode plate comprise a plurality of strip electrodes, and each strip electrode of the fourth electrode plate and the strip electrode of the fifth electrode plate are formed in one-to-one correspondence to form a plurality of strip electrode groups; Applying a third electric field between the fourth electrode plate and the fifth electrode plate, and performing fourth optical alignment on the third alignment film, comprising: applying an electric field between each strip electrode group, and performing a third alignment film The fifth light is aligned.
- the first electrode plate, the second electrode plate, the third electrode plate, the fourth electrode plate, and the fifth electrode plate each include a transparent substrate and a transparent electrode layer disposed on the transparent substrate.
- a liquid crystal display including a backlight and a display panel, which is manufactured by providing a first electrode plate and a second electrode which are oppositely disposed. a plate and an array substrate disposed between the first electrode plate and the second electrode plate; wherein the array substrate includes at least a first transparent electrode and a first alignment film; and applying a first between the first electrode plate and the second electrode plate An electric field, and performing a first photoalignment on the first alignment film; providing a third electrode plate and a color filter substrate disposed oppositely; wherein the color filter substrate comprises at least a second transparent electrode and a second alignment film, and the second alignment film is located at Between the third electrode plate and the second transparent electrode; applying a second electric field between the third electrode plate and the second transparent electrode, and performing a second optical alignment on the second alignment film; and performing liquid crystal on the array substrate and the color filter substrate
- the cassette is processed to form a display panel. .
- the present invention increases the electric field in the vertical direction of the alignment film while illuminating in the optical alignment process of the array substrate and the color filter substrate.
- the illumination in the light alignment enables the alignment film to improve the pretilt angle of the liquid crystal molecules in the horizontal direction;
- the electric field in the vertical direction enables the alignment film to improve the pretilt angle of the liquid crystal molecules in the vertical direction. In the above manner, the contrast of the liquid crystal display can be improved.
- FIG. 1 is a schematic flow chart of a first embodiment of a method for fabricating a display panel of the present invention
- FIG. 2 is a schematic view showing the light alignment of the array substrate in the first embodiment of the method for fabricating the display panel of the present invention
- FIG. 3 is a schematic view showing the light alignment of the color filter substrate in the first embodiment of the method for fabricating the display panel of the present invention
- FIG. 4 is a schematic structural view of a display panel in a first embodiment of a method for fabricating a display panel of the present invention
- FIG. 5 is a schematic flow chart of a second embodiment of a method for fabricating a display panel according to the present invention.
- FIG. 6 is a schematic view showing the light alignment of the array substrate in the second embodiment of the method for fabricating the display panel of the present invention.
- FIG. 7 is a schematic view showing the light alignment of the color filter substrate in the second embodiment of the method for fabricating the display panel of the present invention.
- Fig. 8 is a schematic structural view of an embodiment of a liquid crystal display of the present invention.
- FIG. 1 is a schematic flow chart of a first embodiment of a method for fabricating a display panel according to the present invention. The method includes:
- S11 providing a first electrode plate, a second electrode plate, and an array substrate disposed between the first electrode plate and the second electrode plate; wherein the array substrate comprises at least a first transparent electrode and a first alignment film.
- FIG. 2 is a schematic diagram showing the optical alignment of the array substrate in the first embodiment of the method for fabricating the display panel of the present invention. The following describes the embodiment:
- the first electrode plate 21 includes a transparent substrate 211 and a first transparent electrode layer 212
- the second electrode plate 22 includes a transparent substrate 221 and a second transparent electrode layer 222.
- the transparent substrate 211 and the transparent substrate 221 are transparent glass substrates or transparent plastic substrates; the first transparent electrode layer 212 and the second transparent electrode layer 222 are transparent metal oxides, such as indium tin oxide (ITO); The first transparent electrode layer 212 and the second transparent electrode layer 222 are formed on the transparent substrate by physical vapor deposition or chemical vapor deposition.
- ITO indium tin oxide
- the array substrate 23 includes a transparent substrate 231 , an insulating layer 232 , a first transparent electrode 233 , and a first alignment film 234 covering the first transparent electrode 233 .
- the transparent substrate 231 and the insulating layer 232 may further include other layers such as a thin film transistor, a flat layer, and a common electrode. Since the embodiment does not involve the manufacturing process of the above part, the figure is not shown.
- the first transparent electrode 233 is a pixel electrode.
- the alignment film layer is generally formed by using a PI liquid, and the main component of the PI liquid is a polyimide with a UV photosensitive group and a solvent.
- PI liquid refers to a kind of LCD used to make
- the chemical liquid of the alignment film is printed on the conductive glass and baked to form an alignment film, which can provide a pretilt angle to the liquid crystal molecules, so that the rotation direction of the liquid crystal molecules is more uniform.
- the two electrodes of the power source 24 are respectively connected to the first transparent electrode layer 212 and the second transparent electrode layer 222 to form a first electric field between the first transparent electrode layer 212 and the second transparent electrode layer 222.
- the direction of the electric field is perpendicular to the array substrate 23, and then the first alignment film 234 is subjected to a first photoalignment process by the first illumination.
- the first electric field is an alternating electric field or a direct current electric field, and the electric field direction is perpendicular to the array substrate 23 .
- the advantage of applying a DC electric field compared to the AC electric field is that the electric field is stable and does not change with time, which is advantageous for the alignment of the alignment film.
- the disadvantage is that it is easier to generate electric charges and affect the alignment of the alignment film.
- the first illumination is ultraviolet polarized light
- the incident direction is perpendicular to the array substrate 23, and the polarization direction thereof is parallel to the array substrate 23.
- the pre-tilt angle of the liquid crystal molecules in the horizontal direction is improved by the photo-alignment treatment of the ultraviolet light, and the orientation of the first alignment film is controlled by the electric field in the vertical direction, and the pretilt angle of the liquid crystal molecules in the vertical direction is improved.
- S13 providing a third electrode plate and a color filter substrate disposed opposite to each other; wherein the color filter substrate comprises at least a second transparent electrode and a second alignment film, and the second alignment film is located between the third electrode plate and the second transparent electrode.
- FIG. 3 is a schematic diagram showing the light alignment of the color filter substrate in the first embodiment of the method for fabricating the display panel of the present invention. The following describes the embodiment:
- the third electrode plate 31 includes a transparent substrate 311 and a third transparent electrode layer 312.
- the transparent substrate 311 is a transparent glass substrate or a transparent plastic substrate;
- the third transparent electrode layer 312 is a transparent metal oxide such as indium tin oxide (ITO); and the third transparent electrode layer 312 is formed by physical vapor deposition. Or a method of chemical vapor deposition is formed on a transparent substrate.
- ITO indium tin oxide
- the color filter substrate 32 includes a transparent substrate 321 and a second transparent electrode 322 disposed on one side of the transparent substrate 321 and a second alignment film 323 disposed on the other side of the transparent substrate 321 .
- the color filter substrate 32 may further include a color filter.
- the second transparent electrode 322 is a common electrode.
- the two poles of the power source 33 are respectively connected to the third transparent electrode layer 312 and the second transparent electrode 322, so that a second electric field is formed between the third transparent electrode layer 312 and the second transparent electrode 322.
- the second alignment film 323 is subjected to a second photoalignment process perpendicular to the color filter substrate 32 and then by the second illumination.
- the second electric field is an alternating electric field or a direct current electric field, and the electric field direction is perpendicular to the color filter substrate 32.
- the second illumination is ultraviolet polarized light, and the incident direction is perpendicular to the color filter substrate 32, and the polarization direction thereof is parallel to the color filter substrate 32.
- the pre-tilt angle of the liquid crystal molecules in the horizontal direction is improved by the photo-alignment treatment of the ultraviolet light, and the orientation of the second alignment film is controlled by the electric field in the vertical direction, and the pretilt angle of the liquid crystal molecules in the vertical direction is improved.
- FIG. 4 a schematic structural view of a display panel in a first embodiment of the method for fabricating a display panel of the present invention is further combined with FIG. 2 and FIG.
- the array substrate 23 and the color filter substrate 32 are subjected to liquid crystal chip processing to form a display panel.
- the first alignment film 234 on the array substrate 23 and the second alignment film 323 on the color filter substrate 32 can improve the pretilt angle of the liquid crystal molecules in the horizontal direction and the vertical direction.
- the electric field is increased in the vertical direction of the alignment film while illuminating.
- the illumination in the light alignment enables the alignment film to improve the pretilt angle of the liquid crystal molecules in the horizontal direction; on the other hand, the electric field in the vertical direction enables the alignment film to improve the pretilt angle of the liquid crystal molecules in the vertical direction. In the above manner, the contrast of the liquid crystal display can be improved.
- FIG. 5 is a schematic flowchart of a second embodiment of a method for fabricating a display panel according to the present invention. The method includes:
- S51 providing a first electrode plate, a second electrode plate, and an array substrate disposed between the first electrode plate and the second electrode plate.
- the array substrate 63 includes at least a first transparent electrode 633 and a first alignment film 634.
- the first electrode plate 61 includes a transparent substrate 611 and a plurality of strip electrodes 612 disposed thereon
- the second electrode plate 62 includes a transparent substrate 621 and a plurality of strip electrodes 622 disposed thereon, each of the first electrode plates 61
- the strip electrodes 612 are formed in one-to-one correspondence with each strip electrode 622 of the second electrode plate 62 to form a plurality of strip electrode groups.
- S53 providing a fourth electrode plate, a fifth electrode plate, and a color filter substrate disposed between the fourth electrode plate and the fifth electrode plate.
- the color filter substrate 73 includes at least a third alignment film 733.
- the fourth electrode plate 71 includes a transparent substrate 711 and a plurality of strip electrodes 712 disposed thereon, and the fifth electrode plate 72 includes a transparent substrate 721 and a plurality of strip electrodes 722 disposed thereon, each of the fourth electrode plates 71
- the strip electrodes 712 are formed in a one-to-one correspondence with each strip electrode 722 of the fifth electrode plate 72 to form a plurality of strip electrode groups.
- the electric field applied by the two adjacent strip electrode groups is different in size, and the two regions on the first alignment film corresponding to the adjacent two strip electrodes are in the third light alignment direction, and the illumination direction is The angle between the array substrates is different. That is, the electric fields in the adjacent two regions are different, and the direction of illumination is also different.
- the electric field applied by each strip electrode group is the same, and the two regions on the first alignment film corresponding to the adjacent two strip electrodes are in the direction of illumination and the array substrate.
- the angles are different. That is, the electric fields of the two adjacent regions are the same, but the directions of illumination are different.
- the alignment film can have different pretilt angles in different regions when the liquid crystal molecules are pretilted.
- the display angle of the liquid crystal display can be made wider.
- This second embodiment is similar to the first embodiment described above, and the main difference is the shape of the electrode plate and the distribution of the electric field strength, which will not be described herein.
- the liquid crystal display includes a display panel 81 and a backlight 82.
- the display panel 81 includes an array substrate 811, a color filter substrate 812, and an array substrate 811 and a color filter substrate 812. A liquid crystal layer 813 between.
- the display panel 81 is a display panel manufactured by the method of the first embodiment or the second embodiment, and the implementation manner thereof is similar, and details are not described herein again.
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Abstract
Description
Claims (17)
- 一种显示面板制作方法,其中,包括:提供相对设置的第一电极板、第二电极板以及设置于所述第一电极板和所述第二电极板之间的阵列基板;其中,所述阵列基板至少包括第一透明电极和第一配向膜;在所述第一电极板和所述第二电极板之间施加电场方向垂直于所述阵列基板的第一电场,并采用偏振方向平行于所述阵列基板的紫外光对所述第一配向膜进行第一光配向;其中,所述第一电场为交流电场或直流电场;提供相对设置的第三电极板和彩膜基板;其中,所述彩膜基板至少包括第二透明电极和第二配向膜,所述第二配向膜位于所述第三电极板和所述第二透明电极之间;在所述第三电极板和所述第二透明电极之间施加电场方向垂直于所述彩膜基板的第二电场,并采用偏振方向平行于所述彩膜基板的紫外光对所述第二配向膜进行第二光配向;以及将所述阵列基板和所述彩膜基板进行液晶对盒处理,以形成显示面板。
- 根据权利要求1所述的方法,其中,所述第一电极板和所述第二电极板包括多个条形电极,所述第一电极板的每个条形电极与所述第二电极板的每个条形电极一一对应形成多个条形电极组;所述在所述第一电极板和所述第二电极板之间施加第一电场,并对所述第一配向膜进行第一光配向,包括:在每个所述条形电极组之间施加电场,并对所述第一配向膜进行第三光配向。
- 根据权利要求2所述的方法,其中,相邻的两个所述条形电极组施加的电场大小不同。
- 根据权利要求2所述的方法,其中,相邻的两个所述条形电极对应的所述第一配向膜上的两个区域,在进行所述第三光配向时,光照方向与所述阵列基板之间的角度不同。
- 根据权利要求1所述的方法,其中,所述提供相对设置的第三电极板和彩膜基板,包括:提供相对设置的第四电极板、第五电极板以及设置于所述第四电极板和所述第五电极板之间的所述彩膜基板;其中,所述彩膜基板至少包括第三配向膜;所述在所述第三电极板和所述第二透明电极之间施加第二电场,并对所述第二配向膜进行第二光配向,包括:在所述第四电极板和所述第五电极板之间施加第三电场,并对所述第三配向膜进行第四光配向。
- 根据权利要求5所述的方法,其中,所述第四电极板和所述第五电极板包括多个条形电极,所述第四电极板的每个条形电极与所述第五电极板的每个条形电极一一对应形成多个条形电极组;所述在所述第四电极板和所述第五电极板之间施加第三电场,并对所述第三配向膜进行第四光配向,包括:在每个所述条形电极组之间施加电场,并对所述第三配向膜进行第五光配向。
- 根据权利要求5所述的方法,其中,所述第一电极板、第二电极板、第三电极板、第四电极板以及第五电极板均包括透明基板以及设置于所述透明基板上的透明电极层。
- 一种显示面板制作方法,其中,包括:提供相对设置的第一电极板、第二电极板以及设置于所述第一电极板和所述第二电极板之间的阵列基板;其中,所述阵列基板至少包括第一透明电极和第一配向膜;在所述第一电极板和所述第二电极板之间施加第一电场,并对所述第一配向膜进行第一光配向;提供相对设置的第三电极板和彩膜基板;其中,所述彩膜基板至少包括第二透明电极和第二配向膜,所述第二配向膜位于所述第三电极板和所述第二透明电极之间;在所述第三电极板和所述第二透明电极之间施加第二电场,并对所述第二配向膜进行第二光配向;以及将所述阵列基板和所述彩膜基板进行液晶对盒处理,以形成显示面板。
- 根据权利要求8所述的方法,其中,所述第一电场和所述第二电场为交流电场或直流电场,所述第一电场方向垂直于所述阵列基板,所述第二电场方向垂直于所述彩膜基板。
- 根据权利要求8所述的方法,其中,所述第一光配向中采用的光照为偏振方向平行于所述阵列基板的紫外光,所述第二光配向中采用的光照为偏振方向平行于所述彩膜基板的紫外光。
- 根据权利要求8所述的方法,其中,所述第一电极板和所述第二电极板包括多个条形电极,所述第一电极板的每个条形电极与所述第二电极板的每个条形电极一一对应形成多个条形电极组;所述在所述第一电极板和所述第二电极板之间施加第一电场,并对所述第一配向膜进行第一光配向,包括:在每个所述条形电极组之间施加电场,并对所述第一配向膜进行第三光配向。
- 根据权利要求11所述的方法,其中,相邻的两个所述条形电极组施加的电场大小不同。
- 根据权利要求11所述的方法,其中,相邻的两个所述条形电极对应的所述第一配向膜上的两个区域,在进行所述第三光配向时,光照方向与所述阵列基板之间的角度不同。
- 根据权利要求8所述的方法,其中,所述提供相对设置的第三电极板和彩膜基板,包括:提供相对设置的第四电极板、第五电极板以及设置于所述第四电极板和所述第五电极板之间的所述彩膜基板;其中,所述彩膜基板至少包括第三配向膜;所述在所述第三电极板和所述第二透明电极之间施加第二电场,并对所述第二配向膜进行第二光配向,包括:在所述第四电极板和所述第五电极板之间施加第三电场,并对所述第三配向膜进行第四光配向。
- 根据权利要求14所述的方法,其中,所述第四电极板和所述第五电极板包括多个条形电极,所述第四电极板的每个条形电极与所述第五电极板的每个条形电极一一对应形成多个条形电极组;所述在所述第四电极板和所述第五电极板之间施加第三电场,并对所述第三配向膜进行第四光配向,包括:在每个所述条形电极组之间施加电场,并对所述第三配向膜进行第五光配向。
- 根据权利要求14所述的方法,其中,所述第一电极板、第二电极板、第三电极板、第四电极板以及第五电极板均包括透明基板以及设置于所述透明基板上的透明电极层。
- 一种液晶显示器,包括背光和显示面板,其中,所述显示面板是采用以下方法制造的:提供相对设置的第一电极板、第二电极板以及设置于所述第一电极板和所述第二电极板之间的阵列基板;其中,所述阵列基板至少包括第一透明电极和第一配向膜;在所述第一电极板和所述第二电极板之间施加第一电场,并对所述第一配向膜进行第一光配向;提供相对设置的第三电极板和彩膜基板;其中,所述彩膜基板至少包括第二透明电极和第二配向膜,所述第二配向膜位于所述第三电极板和所述第二透明电极之间;在所述第三电极板和所述第二透明电极之间施加第二电场,并对所述第二配向膜进行第二光配向;以及将所述阵列基板和所述彩膜基板进行液晶对盒处理,以形成显示面板。
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CN107703682B (zh) * | 2017-09-22 | 2019-11-15 | 深圳市华星光电半导体显示技术有限公司 | 液晶配向方法和液晶配向系统 |
CN110275353A (zh) * | 2019-06-24 | 2019-09-24 | 深圳市华星光电半导体显示技术有限公司 | 显示面板母板及其配向装置 |
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JP2018537717A (ja) | 2018-12-20 |
GB201805877D0 (en) | 2018-05-23 |
CN105446019A (zh) | 2016-03-30 |
GB2557831B (en) | 2021-10-20 |
KR20180059530A (ko) | 2018-06-04 |
GB2557831A (en) | 2018-06-27 |
US9904117B2 (en) | 2018-02-27 |
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