CN108761883A - A kind of flexible displays and its manufacturing method, orientation exposure device - Google Patents
A kind of flexible displays and its manufacturing method, orientation exposure device Download PDFInfo
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- CN108761883A CN108761883A CN201810867934.3A CN201810867934A CN108761883A CN 108761883 A CN108761883 A CN 108761883A CN 201810867934 A CN201810867934 A CN 201810867934A CN 108761883 A CN108761883 A CN 108761883A
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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
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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
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
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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
-
- 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
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
- G02F1/133757—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different alignment orientations
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
Abstract
The alignment film that array substrate and color membrane substrates side are covered the invention discloses a kind of flexible displays and its manufacturing method, in flexible displays of the invention has the orientation angle for being more than covering array substrate and color membrane substrates middle section；By to the regulation and control of the subregion of liquid crystal molecule pre-tilt angle, make the liquid crystal molecule pre-tilt angle of different zones correspond to it is differently curved after may general bright degree, reach the uniform effect of display brightness of flexible displays；The invention also discloses a kind of orientation exposure devices.
Description
Technical field
The invention belongs to display technology fields, and in particular to a kind of flexible displays and its manufacturing method, orientation exposure dress
It sets.
Technical background
As science and technology is maked rapid progress, miscellaneous display is also widely used in daily life, such as plane is aobvious
Show device (Flat Display) and flexible displays (Curved Display).Flexible displays compared to flat-panel screens,
Its angular field of view is wider and the visual field is wider, therefore is usually used in showing the image of wide-angle；Flexible displays have curvature, can avoid
The reflection interference of the external light source of both sides；Flexible displays are warp architecture, have radius of curvature, when user is in curved-surface display
When the focus viewing of device, the visual angle of user can be equidistant with display picture, can reduce the burden of eyes.
UV2A (Ultra Violet Vertical Alignment) technology is a kind of using ultraviolet light (UV=Ultra
Violet VA (Vertical Alignment, vertical orientation) panel technology of LCD alignment) is carried out, title is from ultraviolet
Line UV is multiplied with liquid crystal display panel VA patterns.By importing UV2After A technologies, it can save at present in VA mode liquid crystal panels
Slit gap and protrusion for controlling liquid crystal alignment, therefore pass through UV2The aperture opening ratios of A technology liquid crystal display panels, contrast and
Response speed can be improved, and can substantially cut down production routine.
UV2A light alignment techniques are using the ultraviolet light of linear polar biased in the high molecular polymer orientation with emulsion
On film so that the high polymer main chain on high molecular polymer surface is tilted to ultraviolet light (UV) direction of illumination, to have orientation energy
Power, liquid crystal molecule 03 will be tilted along the direction of this main chain, and the long axis of liquid crystal molecule 03 and the angle of substrate are known as pre-dumping
Angle θ.And the angle by controlling orientation, the orientation precision of liquid crystal molecule 03 be relative to 03 length of liquid crystal molecule (about 2nm) at
The angle of ± 20pm, as shown in Figure 1.Its advantage is the pollution that can avoid substrate surface, the orientation that can carry out small area, penetrates
Light shield can make the orientation of figure, using the angle of incident light and the length of irradiation time, can control the parameter of liquid crystal cells, such as
Pre-tilt angle, surface define intensity etc..
As shown in Fig. 2, when UV2A exposes, orientation exposure machine includes 12 pieces of UV2A MASK, 12 pieces of UV2A MASK splicings
One substrate can completely be exposed, different UV2A MASK are made of independent lamp source and light path.
Existing flexible displays have the non-uniform problem of picture brightness when showing picture.For example, curved surface is aobvious
Show device when showing picture, the display brightness in the especially four near corners regions in four edges of display can be more than middle section
Display brightness., the reason is that, when the substrate of flexible displays is made with glass, glass can be concentrated by bending stress for this
It influences, therefore, four edges especially near corners region of display will produce general bright phenomenon, and this general bright phenomenon
Picture brightness can be caused uneven, therefore viewing quality will be seriously affected.Also, this general bright phenomenon be due to glass by
The physical characteristic that bending stress is concentrated causes, therefore the non-uniform problem of picture brightness can occur when flexible displays are opened.
The general bright phenomenon of this neighboring area is commonly referred to as Initial White Mura (IWM) phenomenon in flexible displays.
Invention content
In order to solve the above technical problems, a kind of flexible displays of present invention offer and its manufacturing method, can solve curved surface
The problem of four edges of display especially four near corners region display brightness are more than middle section；This method also provides
A kind of orientation exposure device.
Technical solution provided by the invention is as follows：
The invention discloses a kind of flexible displays, including first substrate, second substrate and it is interposed in first substrate and
Liquid crystal layer between two substrates, first substrate are covered with the first alignment film in the side close to liquid crystal layer, and second substrate is close
The side of liquid crystal layer is covered with the second alignment film；The first substrate include first side, second side and be located at first side
The curvature of first area between second side, first side and second side is all higher than the curvature of first area；Described
Two substrates include third side, four side and the second area between third side and four side；First side
The extending direction for extending perpendicularly to the third side on side；
The orientation angle for covering the first alignment film of the first side is more than the first orientation for covering the first area
The orientation angle of film；The orientation angle for covering the first alignment film of the second side is more than the first of the covering first area
The orientation angle of alignment film；
The orientation angle for covering the second alignment film of the third side is more than the second orientation for covering the second area
The orientation angle of film；The orientation angle for covering the second alignment film of the four side is more than the second of the covering second area
The orientation angle of alignment film.
Preferably, the area of the first side accounts for the ratio of first substrate area more than 1/16 and is less than 1/4；
The ratio that the area of the second side accounts for first substrate area is more than 1/16 and is less than 1/4.
Preferably, the area of the third side accounts for the ratio of second substrate area more than 1/16 and is less than 1/4；
The ratio that the area of the four side accounts for second substrate area is more than 1/16 and is less than 1/4.
The invention also discloses a kind of manufacturing methods of flexible displays, include the following steps：
The first step：First substrate is provided, the first side of first substrate is covered with alignment film, and first substrate includes the first side
Side, second side and the first area between first side and second side, first side and second side are mutually parallel；
Orientation is carried out to first substrate, after the completion of orientation, covers the orientation angle of the first alignment film of the first side
More than the orientation angle for the first alignment film for covering the first area；Cover the orientation of the first alignment film of the second side
Angle is more than the orientation angle for the first alignment film for covering the first area；
Second step：There is provided second substrate, the second side of second substrate is covered with alignment film, and the second substrate includes the
Three sides, four side and the second area between third side and four side, third side and four side are mutual
It is parallel；
Orientation is carried out to second substrate, after the completion of orientation, covers the orientation angle of the second alignment film of the third side
More than the orientation angle for the second alignment film for covering the second area；Cover the orientation of the second alignment film of the four side
Angle is more than the orientation angle for the second alignment film for covering the second area.
Third walks：The first side for making the first substrate at box and described the are carried out to first substrate and second substrate
The second side of two substrates is opposed, and keeps the first side of first substrate vertical with the third side of second substrate.
Preferably, have to ultraviolet light used in the first side of first substrate and second side orientation in the first step
There is the first exposure energy, ultraviolet light used in the first area orientation to first substrate has the second exposure energy, and described the
One exposure energy is less than second exposure energy；
There is third to ultraviolet light used in the third side of second substrate and four side orientation in the second step
Exposure energy, ultraviolet light used in the second area orientation to second substrate have the 4th exposure energy, the third exposure
Energy is less than the 4th exposure energy.
Preferably, to the opposite first substrate of ultraviolet light used in first side and second side orientation in the first step
With the first angle, there is the second angle, first folder with respect to first substrate to ultraviolet light used in the orientation of first area
Angle is more than second angle；
Have the with respect to second substrate to ultraviolet light used in third side and four side orientation in the second step
Three angles with respect to second substrate there is the 4th angle, the third angle to be more than ultraviolet light used in second area orientation
4th angle.
Preferably, further include the 4th step being located at after third step：
Liquid crystal molecule is injected between the first substrate and the second substrate, the liquid crystal near first alignment film point
Son is according to the orientation angle tilt of the first alignment film, liquid crystal molecule the matching according to the second alignment film near second alignment film
To angle tilt.
Preferably, further include the 5th step being located at after the 4th step：
The first substrate and the second substrate be bent, the first side and second side of first substrate are made
Curvature is more than the curvature of the first area of first substrate, while second substrate being made to have corresponding curvature.
The invention also discloses a kind of orientation exposure device, including multiple exposure machine submodules, multiple exposure machine submodules
Underlay substrate is exposed after splicing, each exposure machine submodule includes light source generator, and light source generator generates pre- standing wave
Long ultraviolet light, and control the angle of the irradiation time and ultraviolet light counter substrate substrate of ultraviolet light；Shape on the underlay substrate
At the first substrate for having multiple parallel arrangements or rectangular arrangement；
The multiple exposure machine submodule includes at least one first exposure machine submodule and at least one second exposure machine
The part of submodule, the intersection of described first exposure machine submodule pair, two first substrates and the first substrate of intersection both sides
Region is exposed；
The ultraviolet light that the first exposure machine submodule is sent out when carrying out single exposure has the first exposure energy, described
The ultraviolet light that second exposure machine submodule is sent out when carrying out single exposure has the second exposure energy, first exposure energy
Less than second exposure energy.
The invention also discloses a kind of orientation exposure device, including multiple exposure machine submodules, multiple exposure machine submodules
Underlay substrate is exposed after splicing, each exposure machine submodule includes light source generator, and light source generator generates pre- standing wave
Long ultraviolet light, and control the angle of the irradiation time and ultraviolet light counter substrate substrate of ultraviolet light；Shape on the underlay substrate
At the first substrate for having multiple parallel arrangements or rectangular arrangement；
The multiple exposure machine submodule includes at least one first exposure machine submodule and at least one second exposure machine
The part of submodule, the intersection of described first exposure machine submodule pair, two first substrates and the first substrate of intersection both sides
Region is exposed；
The ultraviolet light counter substrate substrate that the first exposure machine submodule is sent out has the first angle, second exposure
There is the ultraviolet light counter substrate substrate that loom module is sent out the second angle, first angle to be more than second angle.
Compared with prior art, the present invention can bring at least one of following advantageous effect：
1, regulated and controled by the subregion of liquid crystal molecule pre-tilt angle, the liquid crystal molecule pre-tilt angle of different zones is made to correspond to difference
Possible general bright degree, reaches the uniform effect of display brightness of flexible displays after bending；
2, energy is exposed to existing exposure device or angle regulates and controls, it is convenient and at low cost.
Description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, the present invention is given furtherly
It is bright.
Fig. 1 is the schematic diagram of existing UV2A light alignment technique；
Fig. 2 is the side view being exposed to a substrate after 12 pieces of UV2A MASK splice；
Fig. 3 is the region division schematic diagram of first substrate；
Fig. 4 is the schematic diagram that the present invention carries out first substrate UV2A light orientations；
Fig. 5 is the region division schematic diagram of second substrate；
Fig. 6 is the schematic diagram that the present invention carries out second substrate UV2A light orientations；
Fig. 7 is the schematic diagram of one of the step of present invention is into substrate progress light orientation；
Fig. 8 is the structural schematic diagram of flexible displays of the present invention；
Fig. 9 is the expanded schematic diagram of flexible displays of the present invention.
Specific implementation mode
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, control is illustrated below
The specific implementation mode of the present invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, so that simplified form is easy to understand, there is identical structure or function in some figures
Component only symbolically depicts one of those, or has only marked one of those.Herein, "one" is not only indicated
" only this ", can also indicate the situation of " more than one ".
The flexible displays of the present invention include first substrate 011, second substrate 012 and are interposed in first substrate 011 and the
Liquid crystal layer between two substrates 012.As one embodiment, first substrate 011 is array substrate, and first substrate 011 is equipped with
Crisscross scan line and data line intersects the pixel unit limited by scan line and data line, and first substrate 011 is close
The side of liquid crystal layer is covered with the first alignment film 021；Second substrate 012 is color membrane substrates, and second substrate 012 is equipped with grid
The black matrix" of shape and the RGB color layer between black matrix", second substrate 012 are covered in the side close to liquid crystal layer
Second alignment film 022.First alignment film 021 and the second alignment film 022 include the high molecular polymer containing emulsion.As another
One embodiment, first substrate 011 are color membrane substrates, and second substrate 012 is array substrate.
First substrate 011 is including first side 0111, second side 0112 and is located at first side 0111 and second side
First area 0113 between 0112, first side 0111 and second side 0112 are mutually parallel.The area of first side 0111
The ratio for accounting for 011 area of first substrate is more than 1/16 and is less than 1/4；The area of second side 0112 accounts for 011 area of first substrate
Ratio be more than 1/16 and be less than 1/4.
Second substrate 012 is including third side 0121, four side 0122 and is located at third side 0121 and four side
Second area 0123 between 0122, third side 0121 and four side 0122 are mutually parallel.The area of third side 0121
The ratio for accounting for 012 area of second substrate is more than 1/16 and is less than 1/4；The area of four side 0122 accounts for 012 area of second substrate
Ratio be more than 1/16 and be less than 1/4.
As shown in Figure 1, orientation is carried out to first substrate 011 and second substrate 012 using UV2A light alignment technique, it is linear inclined
The ultraviolet light of pole is irradiated with substrate in certain incidence angle so that the high polymer main chain on high molecular polymer surface is to ultraviolet light
Illuminating method tilts, and to have orientation ability, the angle of the inclined direction of high polymer main chain and substrate is known as alignment film
Orientation angle, the liquid crystal molecule 03 near alignment film are tilted along the direction of main chain, the long axis of liquid crystal molecule 03 and the angle of substrate
Referred to as pretilt theta.By controlling ultraviolet angle of light, ultraviolet ray intensity, ultraviolet light time, liquid crystal molecule 03 can be controlled
Parameter, such as pretilt theta, surface orientation intensity.
The flexible base plate or glass substrate of the larger underlay substrate 01 (such as 2500mm*2200mm) of area, substrate base
The multiple first substrates 011 or multiple second substrates 012 of parallel arrangement either rectangular arrangement are formed on plate 01.The present invention
Orientation exposure device include multiple exposure machine submodules, underlay substrate 01 is carried out completely after the splicing of multiple exposure machine submodules
Exposure, each exposure machine submodule includes mask plate 04 and light source generator (not shown), each independent light source generator
The ultraviolet light of predetermined wavelength is generated, and controls the angle of the irradiation time and counter substrate substrate 01 of ultraviolet light；On mask plate 04
Equipped with pierced pattern, UV light permeability mask plate 04 is exposed the specific region of underlay substrate 01.
The manufacturing method of flexible displays of the present invention, includes the following steps：
The first step：First substrate 011 is provided, as shown in figure 3, the first side of first substrate 011 is covered with the first orientation
Film 021, first substrate 011 is including first side 0111, second side 0112 and is located at first side 0111 and second side
First area 0113 between 0112, first side 0111 and second side 0112 are mutually parallel；
As shown in figure 4, carrying out orientation to first substrate 011, after the completion of orientation, the first of covering first side 0111 matches
It is more than the orientation angle of the first alignment film 021 of covering first area 0113 to the orientation angle of film 021；Cover second side
The orientation angle of 0112 the first alignment film 021 is more than the orientation angle of the first alignment film 021 of covering first area 0113.
Specifically, as shown in figure 4, exposure machine submodule in part is to first side 0111 and second side in orientation exposure machine
0112 is exposed, remaining exposure machine submodule is exposed first area 0113, since first substrate 011 is in underlay substrate
Parallel arrangement or rectangular arrangement on 01, on the extending direction for being parallel to first side 0111, two neighboring first substrate
The both sides of 011 intersection have first side 0111 and second side 0112 opposite, therefore the first side of a first substrate 011
0111 and the second side 0112 of adjacent first substrate 011 can share exposure machine submodule, to simplify the knot of orientation exposure machine
Structure.
As one embodiment, in exposure process, the first side 0111 to first substrate 011 and second side 0112
Ultraviolet light used in orientation is purple used in 0113 orientation of first area to first substrate 011 with the first exposure energy
There is outer light the second exposure energy, the first exposure energy to be less than the second exposure energy.
As another embodiment, opposite to ultraviolet light used in 0112 orientation of first side 0111 and second side the
One substrate 011 has the first angle, has second with respect to first substrate 011 to ultraviolet light used in 0113 orientation of first area
Angle, the first angle are more than the second angle.
Second step：Second substrate 012 is provided, as shown in figure 5, the second side of second substrate 012 is covered with the second orientation
Film 022, second substrate 012 is including third side 0121, four side 0122 and is located at third side 0121 and four side
Second area 0123 between 0122, third side 0121 and four side 0122 are mutually parallel；
As shown in fig. 6, carrying out orientation to second substrate 012, after the completion of orientation, the second of covering third side 0121 matches
It is more than the orientation angle of the second alignment film 022 of covering second area 0123 to the orientation angle of film 022；Cover four side
The orientation angle of 0122 the second alignment film 022 is more than the orientation angle of the second alignment film 022 of covering second area 0123.
Specifically, as shown in fig. 6, exposure machine submodule in part is to third side 0121 and four side in orientation exposure machine
0122 is exposed, remaining exposure machine submodule is exposed second area 0123, since second substrate 012 is in underlay substrate
Parallel arrangement or rectangular arrangement on 01, on the extending direction for being parallel to third side 0121, two neighboring second substrate
The both sides of 012 intersection have third side 0121 and four side 0122 opposite, therefore the third side of a certain second substrate 012
0121 and the four side 0122 of adjacent second substrate 012 can share exposure machine submodule, to simplify the knot of orientation exposure machine
Structure.
As one embodiment, in exposure process, to the third side 0121 of second substrate 012 and four side 0122
Ultraviolet light used in orientation is purple used in 0123 orientation of second area to second substrate 012 with third exposure energy
There is outer light the second exposure energy, third exposure energy to be less than the 4th exposure energy.
As another embodiment opposite to ultraviolet light used in 0122 orientation of third side 0121 and four side the
Two substrates 012 have third angle, have the 4th with respect to second substrate 012 to ultraviolet light used in 0123 orientation of second area
Angle, third angle are more than the 4th angle.
Third walks：The first side for making first substrate 011 at box and the are carried out to first substrate 011 and second substrate 012
The second side of two substrates 012 is opposed, and makes the first side 0111 of first substrate 011 and the third side of second substrate 012
0121 is vertical.
Wherein, subregion regulation and control exposure energy or regulate and control the angle of ultraviolet light opposing substrate and be provided to subregion regulation and control the
The orientation angle of one alignment film 021 and the second alignment film 022.Exposure energy can by the wavelength of ultraviolet light or irradiation time into
Row regulation and control；The angle of ultraviolet light opposing substrate is regulated and controled by light source generator, as shown in fig. 7, including in light source generator
One or more optical diaphragms 05 carry out angle adjustment to optical diaphragm and are pressed from both sides more than the second angle, third with reaching the first angle
Angle is more than the effect of the 4th angle.
The manufacturing method of flexible displays of the present invention can also include the 4th step being located at after third step：In first substrate
Liquid crystal molecule 03, the liquid crystal molecule near the first alignment film 021 and the second alignment film 022 are injected between 011 and second substrate 012
03 according to the orientation angle tilt of alignment film.
The manufacturing method of flexible displays of the present invention can also include the 5th step being located at after the 4th step：To first substrate
011 and second substrate 012 be bent, the curvature of the first side 0111 and second side 0112 that make first substrate 011 is more than
The curvature of the first area 0113 of first substrate 011, while making second substrate 012 that there is corresponding curvature；Or make second substrate
012 third side 0121 and the curvature of four side 0122 are more than the curvature of the second area 0123 of second substrate 012, simultaneously
Make first substrate 011 that there is corresponding curvature.
Fig. 8 is the structural schematic diagram of flexible displays of the present invention, and Fig. 9 is the expanded schematic diagram of inventive display.First
After substrate 011 and second substrate 012 are at box, due to the adjustment of the light alignment method of first substrate 011, first side 0111 pair
The pre-tilt angle of liquid crystal molecule 03 in the second display area 062 corresponding to the first display area 061 answered and second side 0112
More than middle section 060 so that the white state brightness of the first display area 061 and the second display area 062 is less than middle section
060；Due to the adjustment of the light alignment method of second substrate 012, the third display area 063 and corresponding to third side 0121
The pre-tilt angle of liquid crystal molecule 03 is more than middle section 060 in the 4th display area 064 corresponding to four side 0122 so that third
The white state brightness of display area 063 and the 4th display area 064 is less than middle section 060；Wherein, middle section 060 refers to showing
Show in the display area (areas AA) of device except the first display area 061, the second display area 062, third that are located at four sides are aobvious
Show the display area other than region 063, the 4th display area 064；White state brightness refers to first substrate 011 and second substrate
Before 012 is bent, in the case where receiving same white state gray scale voltage, display area is showed bright the pixel unit in display
Degree.As shown in fig. 6, the first display area 061, the second display area 062, third display area 063, the 4th display area 064
Due to first substrate 011 and second substrate 012 at four corners four overlapping regions 066 of formation of display, overlapping region 066
Double action, so the white state brightness of overlapping region 066 is more below other display areas.
After being bent to first substrate 011 and second substrate 012, under the action of bending stress, conventional curved-surface is aobvious
Show that the four sides especially quadrangle of device is likely to occur general bright phenomenon.Covering array substrate and color film base in the flexible displays of the present invention
The alignment film of plate side has the orientation angle for being more than covering array substrate and color membrane substrates middle section, by liquid crystal molecule
The subregion of 03 pre-tilt angle regulates and controls, make 03 pre-tilt angle of liquid crystal molecule of different zones correspond to it is differently curved after may general bright journey
Degree, reaches the uniform effect of display brightness of flexible displays.
The invention also discloses a kind of orientation exposure device, including multiple exposure machine submodules, multiple exposure machine submodules
Underlay substrate 01 is exposed after splicing, each exposure machine submodule includes light source generator, and light source generator generates predetermined
The ultraviolet light of wavelength, and control the angle of the irradiation time and ultraviolet light counter substrate substrate of ultraviolet light；It is formed on underlay substrate
There are multiple parallel arrangements or the first substrate of rectangular arrangement 011 (or substrate 012).
Wherein, multiple exposure machine submodules include at least one first exposure machine submodule and at least one second exposure machine
Submodule, the intersection of the first first substrate 011 of exposure machine submodule pair two (or second substrate 012) and intersection both sides
The subregion of first substrate 011 (or second substrate 012) is exposed.
As one embodiment, the ultraviolet light that the first exposure machine submodule is sent out when carrying out single exposure has first to expose
Light energy, the ultraviolet light that the second exposure machine submodule is sent out when carrying out single exposure have the second exposure energy, the first exposure
Energy is less than the second exposure energy.
As another embodiment, the ultraviolet light counter substrate substrate that the first exposure machine submodule is sent out has the first folder
There is the second angle, the first angle to be more than the second angle for angle, the ultraviolet light counter substrate substrate that the second exposure machine submodule is sent out.
It should be noted that the above is only a preferred embodiment of the present invention, but the present invention is not limited to above-mentioned
Detail in embodiment, it is noted that for those skilled in the art, in the technology of the present invention
In conception range, various improvements and modifications may be made without departing from the principle of the present invention, to the technology of the present invention
Scheme carries out a variety of equivalents, these are improved, retouching and equivalents also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of flexible displays, including first substrate, second substrate and the liquid being interposed between first substrate and second substrate
Crystal layer, first substrate are being covered with the first alignment film close to the side of liquid crystal layer, and second substrate is covered in the side close to liquid crystal layer
It is stamped the second alignment film；The first substrate includes first side, second side and between first side and second side
First area, the curvature of first side and second side is all higher than the curvature of first area；The second substrate includes third
Side, four side and the second area between third side and four side；The extending direction of the first side hangs down
Directly in the extending direction of the third side；It is characterized in that：
The orientation angle for covering the first alignment film of the first side is more than the first alignment film for covering the first area
Orientation angle；The orientation angle for covering the first alignment film of the second side is more than the first orientation for covering the first area
The orientation angle of film；
The orientation angle for covering the second alignment film of the third side is more than the second alignment film for covering the second area
Orientation angle；The orientation angle for covering the second alignment film of the four side is more than the second orientation for covering the second area
The orientation angle of film.
2. flexible displays according to claim 1, it is characterised in that：
The ratio that the area of the first side accounts for first substrate area is more than 1/16 and is less than 1/4；
The ratio that the area of the second side accounts for first substrate area is more than 1/16 and is less than 1/4.
3. flexible displays according to claim 1, it is characterised in that：
The ratio that the area of the third side accounts for second substrate area is more than 1/16 and is less than 1/4；
The ratio that the area of the four side accounts for second substrate area is more than 1/16 and is less than 1/4.
4. a kind of manufacturing method of flexible displays, which is characterized in that include the following steps：
The first step：First substrate is provided, the first side of first substrate is covered with alignment film, first substrate include first side,
Second side and the first area between first side and second side, first side and second side are mutually parallel；
Orientation is carried out to first substrate, after the completion of orientation, the orientation angle for covering the first alignment film of the first side is more than
Cover the orientation angle of the first alignment film of the first area；Cover the orientation angle of the first alignment film of the second side
More than the orientation angle for the first alignment film for covering the first area；
Second step：Second substrate is provided, the second side of second substrate is covered with alignment film, and the second substrate includes third side
Side, four side and the second area between third side and four side, third side and four side are mutually parallel；
Orientation is carried out to second substrate, after the completion of orientation, the orientation angle for covering the second alignment film of the third side is more than
Cover the orientation angle of the second alignment film of the second area；Cover the orientation angle of the second alignment film of the four side
More than the orientation angle for the second alignment film for covering the second area.
Third walks：First substrate and second substrate are carried out, at box, to make the first side of the first substrate and second base
The second side of plate is opposed, and keeps the first side of first substrate vertical with the third side of second substrate.
5. the manufacturing method of flexible displays according to claim 4, it is characterised in that：
There is the first exposure to ultraviolet light used in the first side of first substrate and second side orientation in the first step
Energy, ultraviolet light used in the first area orientation to first substrate have the second exposure energy, first exposure energy
Less than second exposure energy；
Ultraviolet light used in the third side of second substrate and four side orientation is exposed with third in the second step
Energy, ultraviolet light used in the second area orientation to second substrate have the 4th exposure energy, the third exposure energy
Less than the 4th exposure energy.
6. the manufacturing method of flexible displays according to claim 4, it is characterised in that：
There is the first folder with respect to first substrate to ultraviolet light used in first side and second side orientation in the first step
Angle with respect to first substrate there is the second angle, first angle to be more than described ultraviolet light used in the orientation of first area
Second angle；
Ultraviolet light used in third side and four side orientation is pressed from both sides with respect to second substrate with third in the second step
Angle with respect to second substrate there is the 4th angle, the third angle to be more than described ultraviolet light used in second area orientation
4th angle.
7. the manufacturing method of flexible displays according to claim 4, which is characterized in that further include being located at the third to walk
The 4th step later：
Liquid crystal molecule, the liquid crystal molecule root near first alignment film are injected between the first substrate and the second substrate
According to the orientation angle tilt of the first alignment film, liquid crystal molecule near second alignment film is according to the orientation angle of the second alignment film
Degree tilts.
8. the manufacturing method of flexible displays according to claim 7, which is characterized in that further include being located at the 4th step
The 5th step later：
The first substrate and the second substrate are bent, the first side of first substrate and the curvature of second side are made
More than the curvature of the first area of first substrate, while making second substrate that there is corresponding curvature.
9. a kind of orientation exposure device, including multiple exposure machine submodules, to underlay substrate after multiple exposure machine submodule splicings
It is exposed, each exposure machine submodule includes light source generator, and light source generator generates the ultraviolet light of predetermined wavelength, and controls
The angle of the irradiation time and ultraviolet light counter substrate substrate of ultraviolet light；Be formed on the underlay substrate multiple parallel arrangements or
The first substrate of rectangular arrangement；It is characterized in that：
The multiple exposure machine submodule includes at least one first exposure machine submodule and at least one second exposure machine submodule
The subregion of block, the intersection of described first exposure machine submodule pair, two first substrates and the first substrate of intersection both sides
It is exposed；
The ultraviolet light that the first exposure machine submodule is sent out when carrying out single exposure have the first exposure energy, described second
There is the ultraviolet light that exposure machine submodule is sent out when carrying out single exposure the second exposure energy, first exposure energy to be less than
Second exposure energy.
10. a kind of orientation exposure device, including multiple exposure machine submodules, to underlay substrate after multiple exposure machine submodule splicings
It is exposed, each exposure machine submodule includes light source generator, and light source generator generates the ultraviolet light of predetermined wavelength, and controls
The angle of the irradiation time and ultraviolet light counter substrate substrate of ultraviolet light；Be formed on the underlay substrate multiple parallel arrangements or
The first substrate of rectangular arrangement；It is characterized in that：
The multiple exposure machine submodule includes at least one first exposure machine submodule and at least one second exposure machine submodule
The subregion of block, the intersection of described first exposure machine submodule pair, two first substrates and the first substrate of intersection both sides
It is exposed；
The ultraviolet light counter substrate substrate that the first exposure machine submodule is sent out has the first angle, the second exposure loom
There is the ultraviolet light counter substrate substrate that module is sent out the second angle, first angle to be more than second angle.
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