CN108957838B - Display device and manufacturing method thereof - Google Patents
Display device and manufacturing method thereof Download PDFInfo
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- CN108957838B CN108957838B CN201810847210.2A CN201810847210A CN108957838B CN 108957838 B CN108957838 B CN 108957838B CN 201810847210 A CN201810847210 A CN 201810847210A CN 108957838 B CN108957838 B CN 108957838B
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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
- G02F1/133528—Polarisers
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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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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Polarising Elements (AREA)
Abstract
The invention discloses a manufacturing method of a display device and the display device, wherein the manufacturing method of the display device comprises the steps of forming a display panel, wherein the display panel comprises at least one hollow area and a display area surrounding each hollow area; forming a first polarizing layer, wherein the first polarizing layer comprises a first area and at least one second area, the first area is arranged corresponding to the display area along a direction perpendicular to the plane of the display panel, and the second area is arranged corresponding to the hollow-out area one by one; forming the first polarizing layer includes doping a dichroic organic dye in a first substrate to form a first pre-polarizing layer; the first shielding structures are correspondingly arranged above the second areas; and irradiating the first pre-polarizing layer by using ultraviolet light, wherein the first shielding structure shields the ultraviolet light from irradiating each second area. According to the technical scheme, the light penetration rate of the first polarizing layer in the second area is greatly improved, and the problem that the display effect of the display device is influenced by water vapor caused by punching on the first polarizing layer is solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a manufacturing method of a display device and the display device.
Background
In order to attenuate the thickness of the module of the display device, the display screen of the display device can be perforated and the camera can be arranged in the perforated area of the display screen. For a display device provided with a polarizer, such as a liquid crystal display device, in order to prevent insufficient light received by a camera from affecting functions of the display device, such as image pickup, the transmittance of the display device corresponding to an area where the camera is disposed to light needs to be ensured.
At present, can dig the hole in order to satisfy the demand of camera to the light penetration rate with the region that the polaroid corresponds the setting camera, but behind polaroid, display panel and apron isotructure laminating for the module, inside steam in the air gets into display device through the hole position of digging of polaroid easily, influences the polarisation performance of polaroid, causes display device's display effect not good. In addition, the hole digging process of the polaroid is divided into a stamping process and a laser process, the stamping process needs mechanical cutting, the hole digging precision of the polaroid is poor, the laser process can only process one polaroid at a time, the processing efficiency is low, mass production cannot be realized, and the hole digging difficulty of the polaroid is increased by the two processes.
Disclosure of Invention
The invention provides a manufacturing method of a display device and the display device, which greatly improve the light transmittance of a first polarizing layer in a second area, avoid the problem that the display effect of the display device is influenced by water vapor caused by punching in the second area of the first polarizing layer, and also avoid the difficult hole digging process of the first polarizing layer.
In a first aspect, an embodiment of the present invention provides a method for manufacturing a display device, including:
forming a display panel, wherein the display panel comprises at least one hollow-out area and a display area surrounding each hollow-out area;
forming a first polarizing layer, wherein the first polarizing layer is arranged opposite to the display panel, the first polarizing layer comprises a first area and at least one second area, the first area is arranged corresponding to the display area along a direction perpendicular to the plane of the display panel, and the second area is arranged corresponding to the hollowed-out area one by one;
the forming a first polarizing layer includes:
forming a first substrate;
doping a dichroic organic dye in the first substrate to form a first pre-polarizing layer;
providing a first shielding structure, wherein the first shielding structure is correspondingly arranged above each second area;
and irradiating the first pre-polarizing layer by using ultraviolet light to form the first polarizing layer, wherein the first shielding structure shields the ultraviolet light from irradiating each second area.
In a second aspect, an embodiment of the present invention further provides a display device, including:
the display panel comprises at least one hollow area and a display area surrounding each hollow area, the first polarizing layer comprises a first area and at least one second area, the first area and the display area are arranged correspondingly along a direction perpendicular to the plane of the display panel, and the second area and the hollow area are arranged correspondingly one to one;
the first polarizing layer includes a first substrate and dichroic organic dyes doped in the first substrate, the dichroic organic dyes in the first region are aligned in a first direction, and the dichroic organic dyes in the second region are randomly arranged.
The embodiment of the invention provides a manufacturing method of a display device and the display device, wherein the manufacturing method of the display device comprises the steps of forming a display panel and forming a first polarizing layer, the display panel comprises at least one hollow area and a display area surrounding each hollow area, the first polarizing layer is arranged opposite to the display panel, the first polarizing layer comprises a first area and at least one second area, the first area and the display area are arranged correspondingly along the direction perpendicular to the plane of the display panel, and the second area and the hollow area are arranged correspondingly one by one. Through in-process at formation first polarisation layer, form first base, dope dichromatic organic dyestuff in first base in order to form first pre-polarisation layer, first sheltering from the structure and correspond and set up in the top of each second region, adopt the first pre-polarisation layer of ultraviolet irradiation, first sheltering from the structure and can shelter from ultraviolet irradiation to each second region, make dichromatic organic dyestuff in the first polarisation layer of first region arrange along a certain direction orientation, the dichromatic organic dyestuff in the first polarisation layer of second region arranges at random, the transmissivity of the first polarisation layer to light of second region has been improved greatly, the problem that the display device display effect is influenced to the steam that leads to punching in the second region of first polarisation layer has been avoided, also avoided carrying out the great hole digging technology of the degree of difficulty to first polarisation layer.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic flowchart illustrating a manufacturing method of a display device according to an embodiment of the present invention;
fig. 2 is a schematic top view of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view illustrating a display device according to an embodiment of the invention;
fig. 4 is a schematic flowchart of a method for manufacturing a first polarizing layer according to an embodiment of the invention;
fig. 5 is a schematic diagram illustrating a manufacturing process of a first polarizing layer according to an embodiment of the invention;
fig. 6 is a schematic flowchart of a manufacturing method of another display device according to an embodiment of the invention;
fig. 7 is a schematic flowchart of a method for manufacturing a second polarizing layer according to an embodiment of the invention;
fig. 8 is a schematic top view of another display panel according to an embodiment of the present invention;
fig. 9 is a schematic cross-sectional view of another display device according to an embodiment of the invention;
fig. 10 is a schematic flowchart of a manufacturing method of another display device according to an embodiment of the invention;
fig. 11 is a schematic flowchart of a manufacturing method of another display device according to an embodiment of the invention;
fig. 12 is a schematic top view of an annular blocking structure according to an embodiment of the present invention;
fig. 13 is a schematic flow chart illustrating a method for fabricating a color resist layer according to an embodiment of the invention;
fig. 14 is a schematic view illustrating a color resist layer according to an embodiment of the invention;
FIG. 15 is a schematic flow chart illustrating a method for fabricating another color resist layer according to an embodiment of the present invention;
fig. 16 is a schematic view illustrating a manufacturing process of another color resist layer according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Throughout this specification, the same or similar reference numbers refer to the same or similar structures, elements, or processes. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Fig. 1 is a schematic flow chart illustrating a manufacturing method of a display device according to an embodiment of the present invention. As shown in fig. 1, the method for manufacturing a display device includes:
s110, forming a display panel, wherein the display panel comprises at least one hollow-out area and a display area surrounding each hollow-out area.
Fig. 2 is a schematic top view of a display panel according to an embodiment of the present invention, and fig. 3 is a schematic cross-sectional view of a display device according to an embodiment of the present invention. Referring to fig. 2 and 3, the display panel 1 includes at least one hollow-out region a2 and a display region a1 surrounding each hollow-out region a2, and fig. 2 and 3 exemplarily set that the display panel 1 includes one hollow-out region a2 and the display region a1 is disposed surrounding the hollow-out region a 2.
As shown in fig. 3, forming the display panel 1 may include forming a first substrate 11 and a second substrate 12, the first substrate 11 being disposed opposite the second substrate 12. For example, the display panel 1 may be a liquid crystal display panel, the first substrate 11 may be a color filter substrate, and the second substrate 12 may be an array substrate.
It should be noted that fig. 3 only exemplarily shows that the hollow area a2 of the display panel 1 is not formed by hollowing the first substrate 11 and the second substrate 12, and the hollow area a2 of the display panel 1 may be formed by hollowing the first substrate 11 and the second substrate 12 at a position where the first substrate 11 and the second substrate 12 need to form the hollow area a2, or the hollow area a2 of the display panel 1 may be formed by using a photolithography pattern at a position where the first substrate 11 and the second substrate 12 need to form the hollow area a2, which is not limited in the embodiment of the present invention.
S120, forming a first polarizing layer, wherein the first polarizing layer is arranged opposite to the display panel, the first polarizing layer comprises a first area and at least one second area, the first area is arranged corresponding to the display area along the direction perpendicular to the plane where the display panel is located, and the second area is arranged corresponding to the hollowed-out area one to one.
Referring to fig. 2 and 3, the first polarizing layer 2 is disposed opposite to the display panel 1, the first polarizing layer 2 includes a first region B1 and at least one second region B2, the first region B1 is disposed corresponding to the display region a1, and the second region B2 is disposed corresponding to the hollow-out region a2 in a one-to-one manner along a direction perpendicular to a plane of the display panel 1. Fig. 2 and 3 exemplarily set that the display panel 1 includes one hollow a2, and the first polarizing layer 2 includes one second region B2, and the second region B2 is disposed corresponding to the hollow a2 in a direction perpendicular to a plane of the display panel 1.
Fig. 4 is a flowchart illustrating a method for manufacturing a first polarizing layer according to an embodiment of the invention. As shown in fig. 4, the method for manufacturing the first polarizing layer includes:
s210, forming a first substrate.
A first substrate is formed, and illustratively, the material comprising the first substrate may comprise polyimide.
And S220, doping a dichroic organic dye into the first substrate to form a first pre-polarizing layer.
A dichroic organic dye is doped in the formed first substrate to form a first pre-polarizing layer. Illustratively, the dichroic organic dye may include one or more of azo type dyes, anthraquinone type fuels, biphenyl type fuels, triphendioxazine and derivative type dyes, monomethine type dyes, polymethine type dyes, and polycyclic dyes.
S230, providing a first shielding structure, wherein the first shielding structure is correspondingly arranged above each second area.
With reference to fig. 2, fig. 3 and fig. 5, a first shielding structure 21 is provided, the first shielding structure 21 is correspondingly disposed above the second area B2 of the first pre-polarizing layer 201, the shape of the first shielding structure 21 may be the same as that of the second area B2, and the first shielding structure 21 is located right above the second area B2 of the first pre-polarizing layer 201 along a direction perpendicular to the plane of the display panel 1.
S240, irradiating the first pre-polarizing layer by using ultraviolet light to form a first polarizing layer, wherein the first shielding structure shields the ultraviolet light from irradiating each second area.
With reference to fig. 2, 3 and 5, the first pre-polarizing layer 201 is irradiated with ultraviolet light to form the first polarizing layer 2, and the first shielding structure 21 shields the ultraviolet light from the second area B2. For example, ultraviolet light may be arranged to irradiate in a direction perpendicular to the display panel 1, and the first shielding structure 21 is located right above the second area B2 of the first pre-polarizing layer 201. Illustratively, the material comprising the first substrate may be provided to comprise a photopolymerizable polyimide. The first pre-polarizing layer 201 contains dichroic organic dye, and the first pre-polarizing layer 201 can be irradiated with ultraviolet light of 300nm to 320nm, the ultraviolet light can be irradiated to the first pre-polarizing layer 201 of the first zone B1, and the dichroic organic dye in the first pre-polarizing layer 201 of the first zone B1 can be converted from a small molecular structure into a large molecular long chain structure, and the corresponding structure conversion process is as follows:
the dichroic organic dye in the first pre-polarizing layer 201 of the first region B1 forms the above-mentioned macromolecular long chain structure under the irradiation of ultraviolet light, so that the dichroic organic dye in the first pre-polarizing layer 201 of the first region B1 can be aligned along the above-mentioned alignment direction, for example, along the first direction, and the dichroic organic dye has dichroism, which can transmit light of one polarization direction under the irradiation of natural light, and block light of the other polarization direction, so that the first polarizing layer 2 of the first region B1 disposed corresponding to the display region a1 of the display panel 1 has polarization characteristics.
And first shelters from structure 21 and shelters from ultraviolet irradiation to second region B2 for the dichromatic organic dye in the first polarisation layer 2 of second region B2 still is the micromolecular structure, the dichromatic organic dye in the first polarisation layer 2 of second region B2 arranges at random, the first polarisation layer 2 of second region B2 to the transmissivity of light has improved greatly, avoided punching the problem that the steam that leads to influences display device display effect at second region B2 of first polarisation layer 2, also avoided carrying out the great process of digging a hole of the degree of difficulty to first polarisation layer 2.
The depolarization processing of the first polarizing layer may also be to set a polyvinyl alcohol layer containing iodine in the first polarizing layer, and the second area of the first polarizing layer may be processed using a chemical reagent to decolor the second polarizing layer of the second area, so as to realize the depolarization processing of the second area of the first polarizing layer. However, the chemical etching used in the depolarization processing method may cause blurring of the edge of the second area of the first polarizing layer. According to the embodiment of the invention, the dichroic organic dye is doped in the first substrate, the first shielding structure is utilized to shield the second area of the first polarizing layer, and the first pre-polarizing layer is subjected to ultraviolet irradiation, so that the transmittance of the first polarizing layer of the second area to light is improved, and the problem of edge mode of the second area of the first polarizing layer caused by the depolarization processing by a chemical corrosion method is avoided.
Fig. 6 is a schematic flow chart illustrating a manufacturing method of another display device according to an embodiment of the present invention. In addition to the method of manufacturing the display device shown in fig. 1, the method of manufacturing the display device shown in fig. 6 further includes:
s330, a second polarizing layer is formed, the second polarizing layer is arranged on one side, away from the first polarizing layer, of the display panel, the second polarizing layer comprises a third area and at least one fourth area, the third area and the display area are arranged correspondingly in the direction perpendicular to the plane where the display panel is located, and the fourth areas and the hollow areas are arranged in a one-to-one correspondence mode.
With reference to fig. 2 and fig. 3, the display device may further include a second polarizing layer 3 located on a side of the display panel 1 away from the first polarizing layer 2, where the second polarizing layer 3 includes a third area C1 and at least one fourth area C2, and in a direction perpendicular to a plane where the display panel 1 is located, the third area C1 is disposed corresponding to the display area a1, and the fourth area C2 is disposed corresponding to the hollow area a 2. Fig. 2 and 3 exemplarily set that the display panel 1 includes one hollow a2, and the second polarizing layer 3 includes one fourth region C2, and the fourth region C2 is disposed corresponding to the hollow a2 in a direction perpendicular to a plane of the display panel 1.
Fig. 7 is a flowchart illustrating a method for manufacturing a second polarizing layer according to an embodiment of the invention. As shown in fig. 7, the method for manufacturing the second polarizing layer includes:
s410, forming a second substrate.
The second substrate is formed, and illustratively, the material comprising the second substrate may also comprise polyimide.
And S420, doping a dichroic organic dye into the second substrate to form a first pre-polarizing layer.
Exemplary dichroic organic dyes may also include one or more of azo type dyes, anthraquinone type fuels, biphenyl type fuels, triphendioxazine and derivative type dyes, monomethine type dyes, polymethine type dyes, and polycyclic dyes.
And S430, arranging the first shielding structures above the fourth areas correspondingly.
With reference to fig. 2, fig. 3 and fig. 5, along a direction perpendicular to the plane of the display panel 1, since the second region B2 of the first polarizing layer 2 is disposed in one-to-one correspondence with the hollow-out region a2 of the display panel 1, and the fourth region C2 of the second polarizing layer 3 is disposed in one-to-one correspondence with the hollow-out region a2 of the display panel 1, the second region B2 of the first polarizing layer 2 is disposed in one-to-one correspondence with the fourth region C2 of the second polarizing layer 3, and both the second region B2 of the first polarizing layer 2 and the fourth region C2 of the second polarizing layer 3 need to be shielded by shielding structures, so that the same shielding structure can be shared when the first polarizing layer 2 is formed and the second polarizing layer 3 is formed, that the first shielding structure 21 is used.
Similarly, the first shielding structure 21 may be configured to have the same shape as the fourth area C2, and the first shielding structure 21 is located directly above the fourth area C2 in a direction perpendicular to the plane of the display panel 1.
S440, irradiating the second pre-polarizing layer by using ultraviolet light to form a second polarizing layer, wherein the first shielding structure shields the ultraviolet light from irradiating the fourth areas.
Similarly, in conjunction with fig. 2, fig. 3 and fig. 5, ultraviolet light may be set to irradiate in a direction perpendicular to the display panel 1, and the first shielding structure 21 is located right above the fourth area C2. The dichroic organic dye can be aligned under the irradiation of ultraviolet light, for example, along the second direction, due to the doping of the dichroic organic dye in the second substrate, and has dichroism which can transmit light of one polarization direction and block light of the other polarization direction under the irradiation of natural light. The third region C1 of the second pre-polarizing layer is irradiated with ultraviolet light such that the dichroic organic dye in the second polarizing layer 3 of the third region C1 is aligned, i.e., such that the second polarizing layer 3 of the third region C1 disposed corresponding to the display region a1 of the display panel 1 has polarizing characteristics.
The first direction and the second direction may be arranged to intersect, for example, perpendicular to each other, such that the polarization direction of the first region B1 of the first polarizing layer 2 and the polarization direction of the third region C1 of the second polarizing layer 3, which are arranged corresponding to the display area a1 of the display panel 1, are perpendicular to each other, and the display area a1 of the display panel 1 implements a corresponding display function.
Because first sheltering from structure 21 can shelter from ultraviolet irradiation to fourth region C2 of second polarisation layer 3, the dichromatic organic dye in the second polarisation layer 3 of fourth region C2 arranges at random, the second polarisation layer 3 of fourth region C2 has improved the penetration rate to light greatly, avoided punching the problem that the steam in the air that leads to influences display device display effect at fourth region C2 of second polarisation layer 3, also avoided carrying out the great hole technology of digging of the degree of difficulty to second polarisation layer 3. In addition, the second substrate is doped with the dichroic organic dye, the first shielding structure is utilized to shield the fourth area of the second polarizing layer, and the second pre-polarizing layer is subjected to ultraviolet irradiation, so that the transmittance of the second polarizing layer of the fourth area to light is improved, and the problem of edge mode of the fourth area of the second polarizing layer caused by the depolarization processing by a chemical corrosion method is avoided.
Fig. 2 and 3 only exemplarily show that the display panel 1 includes one hollow-out region a2, and the display panel may also include a plurality of hollow-out regions, and fig. 8 and 9 exemplarily show that the display panel 1 includes two hollow-out regions a2 and a display region a1 surrounding the two hollow-out regions a2, so that the first polarizing layer 2 may include two second regions B2, and the second polarizing layer 3 includes two fourth regions C2, and the second regions B2 and the fourth regions C2 are respectively disposed in one-to-one correspondence with the hollow-out regions a2 along a direction perpendicular to a plane of the display panel 1. In forming the first polarizing layer 2 and the second polarizing layer 3, it may be arranged that the first shielding structure includes a shielding portion capable of shielding two second areas B2 or two fourth areas C2 at the same time to improve transmittance of the first polarizing layer 2 of the second area B2 and the second polarizing layer 3 of the fourth area C2 to light.
It should be noted that fig. 2, fig. 3, fig. 8 and fig. 9 are only exemplarily set in a direction perpendicular to the plane of the display panel 1, the first polarizing layer 2 is located above the display panel 1, and the second polarizing layer 3 is located below the display panel 1, and the first polarizing layer 2 may be located below the display panel 1, and the second polarizing layer 3 is located above the display panel 1, which is not limited in the embodiment of the present invention.
Referring to fig. 2, 3, 8 and 9, at least one optical sensor 4 may be disposed below the corresponding hollow area a2 in a direction perpendicular to a plane of the display panel 1. Light irradiates to the optical sensor 4 through the first polarizing layer 2, the display panel 1 and the second polarizing layer 3, the optical sensor 4 can be integrated in a camera, and the camera collects light through the optical sensor 4 to realize an imaging function. Fig. 2, fig. 3, fig. 8 and fig. 9 exemplarily show that one optical sensor 4 is disposed below one hollow-out region a2, or a plurality of optical sensors 4 may be disposed below one hollow-out region a2, which is not limited in the embodiment of the present invention.
It should be noted that, in the embodiment of the present invention, the number of the hollow areas a2 of the display panel 1 and the specific shape of each hollow area a2 are not limited, fig. 2, fig. 3, fig. 8, and fig. 9 are only exemplary to set the hollow area a2 of the display panel 1 to be a circle, the display panel 1 may include a plurality of hollow areas a2, so that a plurality of optical elements may be disposed, the shapes of different hollow areas a2 may be the same or different, and the position and the shape of each hollow area a2 may be specifically designed according to the position and the shape of the optical element to be disposed.
Optionally, the second area of the first polarizing layer may be circular, the diameter of the second area is defined as d, and d is greater than or equal to 2.5mm and less than or equal to 11mm, that is, the diameter d of the second area of the first polarizing layer is greater than or equal to 2.5mm and less than or equal to 11 mm. The second area of the first polarizing layer can also be set to be elliptical, the short axis of the second area is defined as a, and a is more than or equal to 2.5mm and less than or equal to 11mm, that is, the short axis a of the second area of the first polarizing layer is more than or equal to 2.5mm and less than or equal to 11 mm. The undersize of the second area of the first polarizing layer affects the lighting effect of the optical sensor, and the oversize of the second area of the first polarizing layer causes the size of the display area of the display panel to be reduced for the same size of the display panel. Similarly, the fourth area of the second polarizing layer may be circular, and the diameter of the fourth area may be 2.5mm or more and 11mm or less. Or the fourth area of the second polarizing layer is set to be elliptical, namely the minor axis of the fourth area of the second polarizing layer is greater than or equal to 2.5mm and less than or equal to 11 mm.
Fig. 10 is a flowchart illustrating a manufacturing method of another display device according to an embodiment of the invention. On the basis of the method for manufacturing the display device shown in fig. 4, the method for manufacturing the display device shown in fig. 10 further includes, after irradiating the first pre-polarizing layer with ultraviolet light to form the first polarizing layer:
and S550, heating the first polarizing layer to remove the dichroic organic dye in the second area.
Referring to fig. 2, 3, 5, and 8 and 9, it may be arranged that the material constituting the first substrate includes photopolymerizable polyimide. The first pre-polarizing layer 201 includes a dichroic organic dye, and ultraviolet rays can be irradiated to the first pre-polarizing layer 201 of the first region B1, and the dichroic organic dye in the first pre-polarizing layer 201 of the first region B1 is converted from a small molecular structure to a large molecular long chain structure, so that the dichroic organic dye in the first pre-polarizing layer 201 of the first region B1 can be aligned along the above alignment direction.
The first shielding structure 21 shields ultraviolet rays from the second area B2, so that the dichroic organic dye in the first polarizing layer 2 of the second area B2 is still in a small molecular structure, the first polarizing layer 2 is heated, the dichroic organic dye in the small molecular structure in the first polarizing layer 2 of the second area B2 can be removed, the influence of the dichroic organic dye contained in the second area B2 on the transmittance of the first polarizing layer 2 of the second area B2 on light rays is avoided, and the dichroic organic dye in the first polarizing layer 2 of the first area B1 is in a large molecular long chain structure, so that the heating process does not influence the structure and arrangement of the dichroic organic dye in the first polarizing layer 2 of the first area B1, and the first polarizing layer 2 of the first area B1 is ensured to have polarization characteristics.
Fig. 11 is a schematic flowchart of a manufacturing method of another display device according to an embodiment of the invention. On the basis of the method for manufacturing the display device shown in fig. 7, the method for manufacturing the display device shown in fig. 11 further includes, after irradiating the second pre-polarizing layer with ultraviolet light to form the second polarizing layer:
and S650, heating the second polarizing layer to remove the dichroic organic dye in the fourth area.
Referring to fig. 2, 3, 5, and 8 and 9, it is arranged that the material constituting the second substrate includes photopolymerizable polyimide. Similarly, since the material constituting the second substrate includes photopolymerizable polyimide, when the second pre-polarizing layer formed by doping the dichroic organic dye in the first substrate is irradiated with ultraviolet light, the dichroic organic dye in the second polarizing layer 3 of the third region C1 is converted from a small molecular structure into a large molecular long chain structure, and the dichroic organic dye in the second polarizing layer 3 of the fourth region C2 is still in a small molecular structure. The second polarizing layer 3 is heated, so that the dichroic organic dye with a small molecular structure in the second polarizing layer 3 of the fourth area C2 can be removed, the influence of the dichroic organic dye contained in the second polarizing layer 3 of the fourth area C2 on the transmittance of light rays of the second polarizing layer 3 of the fourth area C2 is avoided, and the dichroic organic dye in the second polarizing layer 3 of the third area C1 is a large molecular long chain structure, so that the heating process does not influence the structure and arrangement of the dichroic organic dye in the second polarizing layer 3 of the third area C1, and the second polarizing layer 3 of the third area C1 is ensured to have polarizing properties.
Fig. 12 is a schematic top view of an annular blocking structure according to an embodiment of the present invention. With reference to fig. 3, 9 and 12, at least one annular blocking structure 13 is disposed between the first substrate 11 and the second substrate 12, and along a direction perpendicular to a plane of the display panel 1, the annular blocking structures 13 and the hollow areas a2 are disposed in a one-to-one correspondence manner, each annular blocking structure 13 and the first substrate 11 and the second substrate 12 form a closed space D, and the closed space D is filled with air or an organic transparent material.
For example, the display device may be a liquid crystal display device, the first substrate 11 may be an array substrate, the second substrate 12 may be a color filter substrate, and the display device further includes a liquid crystal layer between the first substrate 11 and the second substrate 12. If the liquid crystal molecules are disposed at the position of the display panel 1 corresponding to the hollow area a2, the liquid crystal molecules may greatly affect the transmittance of the hollow area a2 of the display panel 1 to light, and therefore the annular blocking structure 13 is disposed corresponding to the hollow area a2, and the enclosed space D formed by the annular blocking structure 13 and the first and second substrates 11 and 12 is filled with air or an organic transparent material, so that the transmittance of the hollow area a2 of the display panel 1 to light can be effectively improved. For example, the organic transparent material may be a material constituting a planarization layer of a color filter substrate, a material constituting a planarization layer of an array substrate, or a material of a Spacer Wall (Photo Spacer Wall), an oca (optically Clear adhesive) optical adhesive, and the like, and the specific material of the organic transparent material is not limited in the embodiment of the present invention. The material forming the annular barrier structure 13 may include a gap wall material, and the specific material of the annular barrier structure 13 is not limited in the embodiment of the present invention.
Optionally, the second substrate may include a plurality of color-resist layers, and the color resist in the color-resist layers may be a negative color resist. Fig. 13 is a schematic flow chart illustrating a method for manufacturing a color resist layer according to an embodiment of the invention. As shown in fig. 13, the method for manufacturing the color resist layer includes:
s710, forming a pre-processed color resistance layer.
S720, providing a second shielding structure, wherein the second shielding structure is correspondingly arranged above each hollow area.
S730, irradiating the preprocessing color resistance layer by adopting light rays, and blocking the preprocessing color resistance layer irradiated to each hollowed-out area by the second shielding structure.
And S740, removing the pre-processing color resistance layers of the hollow areas.
With reference to fig. 3, 9 and 14, the second shielding structure 22 shields the pre-processing color resist 1211 irradiated by light to the hollow area a2, the pre-processing color resist 1211 of the hollow area a2 is not irradiated by light, and since the color resist in the color resist 121 is a negative color resist, after the pre-processing color resist 1211 irradiated by light is developed by using a developing solution, the pre-processing color resist of the hollow area a2 is removed, thereby preventing the color resist existing in the corresponding hollow area a2 from affecting the transmittance of the second substrate 12, i.e., the color film substrate, to the light, and preventing the light from changing the color through the second substrate 12 of the hollow area a2 from affecting the imaging effect of the camera integrated with the optical sensor.
Optionally, the second substrate may include a plurality of color-resist layers, and the color resist in the color-resist layers may be a positive color resist. Fig. 15 is a schematic flow chart of another method for manufacturing a color resist layer according to an embodiment of the invention. As shown in fig. 14, the method for manufacturing the color resist layer includes:
s810, forming a pre-processing color resistance layer.
S820, providing a third shielding structure, wherein the third shielding structure is correspondingly arranged above part of the display area.
S830, the light is adopted to irradiate the preprocessing color resistance layer, and the third shielding structure shields the light from irradiating part of the preprocessing color resistance layer in the display area.
And S840, removing the pretreatment color resistance layers of the hollow areas.
With reference to fig. 3, 9 and 16, the third shielding structure 23 only shields the light from the pre-process color resist 1211 of the partial display area a1 to form a patterned corresponding color resist, and does not shield the pre-process color resist 1211 of the hollow area a 2. The pre-treatment color resist 1211 of the hollow area a2 receives light irradiation, and since the color resist in the color resist layer 121 is a positive color resist, after the pre-treatment color resist 1211 after light irradiation is developed by using a developing solution, the pre-treatment color resist 1211 of the hollow area a2 is removed, thereby also preventing the color resist existing in the corresponding hollow area a2 from affecting the second substrate 12, that is, the transmittance of the color film substrate to light, and preventing the light from changing color through the second substrate 12 of the hollow area a2 from affecting the imaging effect of devices such as a camera integrated with an optical sensor.
Referring to fig. 3 and 9, the display device may further include a backlight module 5 located on a side of the second polarizing layer 3 away from the display panel 1, and along a direction perpendicular to a plane where the display panel 1 is located, a hole-shaped structure 51 may be formed at a position where the backlight module 5 corresponds to the hollow area a2, and a camera or the like (here, the camera or the like is represented by the optical sensor 4 only schematically) including the optical sensor 4 in the display device is located on a side of the second polarizing layer 3 away from the display panel 1 and within the hole-shaped structure 51 of the backlight module 5. Like this, when reducing display device thickness, make first base plate 11 and second base plate 12 correspond fretwork district A2 need not punch, when improving the transmissivity of the first polarisation layer 2 of second district B2 and the second polarisation layer 3 of fourth district C2 to light, avoided first base plate 11 and second base plate 12 to punch and lead to punching position department to join in marriage to the membrane disconnected difference great, influence and join in marriage to membrane film forming quality, and then influence display device's display effect.
It should be noted that the drawings of the embodiments of the present invention only show the size of each element and the thickness of each film layer by way of example, and do not represent the actual size of each element and each film layer in a display device.
In the embodiment of the invention, the first substrate is formed in the process of forming the first polarizing layer, the dichroic organic dye is doped in the first substrate to form the first pre-polarizing layer, the first shielding structure is correspondingly arranged above each second area, the first pre-polarizing layer is irradiated by ultraviolet light, and the first shielding structure can shield the ultraviolet light from irradiating each second area, so that the dichroic organic dye in the first polarizing layer of the first area is aligned along a certain direction, and the dichroic organic dye in the first polarizing layer of the second area is randomly arranged, thereby greatly improving the transmittance of the first polarizing layer of the second area to light, avoiding the problem that the display effect of the display device is influenced by water vapor caused by punching in the second area of the first polarizing layer, and avoiding the hole digging process with high difficulty on the first polarizing layer.
Referring to fig. 2, 3, 8 and 9, the display device includes a display panel 1 and a first polarizing layer 2, which are oppositely disposed, the display panel 1 includes at least one hollow-out region a2 and a display region a1 surrounding each hollow-out region a2, the first polarizing layer 2 includes a first region B1 and at least one second region B2, the first region B1 is disposed corresponding to the display region a1 along a direction perpendicular to a plane of the display panel 1, and the second region B2 is disposed corresponding to the hollow-out regions a 2. The first polarizing layer 2 includes a first substrate and a dichroic organic dye doped in the first substrate, the dichroic organic dye in the first region B1 is aligned along a first direction, and all the dichroic organic dye in the second region B2 is randomly arranged.
Referring to fig. 2, 3, 8 and 9, the display device may further include a second polarizing layer 3, the second polarizing layer 3 is disposed on a side of the display panel 1 away from the first polarizing layer 2, the second polarizing layer 3 includes a third region C1 and at least one fourth region C2, the third region C1 is disposed corresponding to the display region a1, and the fourth region C2 is disposed corresponding to the hollow region a2 in a one-to-one manner along a direction perpendicular to a plane of the display panel 1. The second polarizing layer 3 includes a second substrate and dichroic organic dyes doped in the second substrate, the dichroic organic dyes in the third region C1 are aligned along the second direction, and all the dichroic organic dyes in the fourth region C2 are randomly aligned; wherein the first direction intersects the second direction. Illustratively, the display device may be an electronic display device such as a mobile phone, a computer, or a television.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for manufacturing a display device, comprising:
forming a display panel, wherein the display panel comprises at least one hollow-out area and a display area surrounding each hollow-out area;
forming a first polarizing layer, wherein the first polarizing layer is arranged opposite to the display panel, the first polarizing layer comprises a first area and at least one second area, the first area is arranged corresponding to the display area along a direction perpendicular to the plane of the display panel, and the second area is arranged corresponding to the hollowed-out area one by one;
the forming a first polarizing layer includes:
forming a first substrate;
doping a dichroic organic dye in the first substrate to form a first pre-polarizing layer;
providing a first shielding structure, wherein the first shielding structure is correspondingly arranged above each second area;
and irradiating the first pre-polarizing layer by using ultraviolet light to form the first polarizing layer, wherein the first shielding structure shields the ultraviolet light from irradiating each second area.
2. The method for manufacturing a display device according to claim 1, further comprising:
forming a second polarizing layer, wherein the second polarizing layer is arranged on one side of the display panel far away from the first polarizing layer, the second polarizing layer comprises a third area and at least one fourth area, the third area is arranged corresponding to the display area along a direction perpendicular to the plane of the display panel, and the fourth area is arranged corresponding to the hollowed-out area one to one;
the forming a second polarizing layer includes:
forming a second substrate;
doping a dichroic organic dye in the second substrate to form a second pre-polarizing layer;
the first shielding structures are correspondingly arranged above the fourth areas;
and irradiating the second pre-polarizing layer by using ultraviolet light to form the second polarizing layer, wherein the first shielding structure shields the ultraviolet light from irradiating each fourth area.
3. The method for manufacturing a display device according to claim 1, wherein a material constituting the first substrate comprises photopolymerizable polyimide;
after the irradiating the first pre-polarizing layer with ultraviolet light to form the first polarizing layer, the method of making further comprises:
heat treating the first polarizing layer to remove the dichroic organic dye of the second region.
4. The method according to claim 2, wherein a material constituting the second substrate comprises photopolymerizable polyimide;
after the irradiating the second pre-polarizing layer with ultraviolet light to form the second polarizing layer, the manufacturing method further includes:
heat treating the second polarizing layer to remove the dichroic organic dye of the fourth region.
5. The method of manufacturing a display device according to claim 1, wherein the forming a display panel includes:
forming a first substrate and a second substrate;
the first substrate and the second substrate are arranged oppositely, at least one annular blocking structure is arranged between the first substrate and the second substrate, and the annular blocking structures and the hollow areas are arranged in a one-to-one correspondence mode along the direction perpendicular to the plane where the display panel is located; each annular barrier structure, the first substrate and the second substrate form a sealed area, and air or organic transparent materials are filled in the sealed area.
6. The method of manufacturing a display device according to claim 5,
the second substrate comprises a plurality of color resistance layers, the color resistances in the color resistance layers are all negative color resistances, and the forming of one color resistance layer comprises the following steps:
forming a pretreated color resistance layer;
providing a second shielding structure, wherein the second shielding structure is correspondingly arranged above each hollowed-out area;
irradiating the preprocessing color resistance layer by adopting light rays, and shielding the preprocessing color resistance layer irradiated to each hollowed-out area by the second shielding structure;
removing the pretreatment color resistance layer of each hollowed-out area; alternatively, the first and second electrodes may be,
the second substrate comprises a plurality of color resistance layers, the color resistances in the color resistance layers are all positive color resistances, and the forming of one color resistance layer comprises the following steps:
forming a pretreated color resistance layer;
providing a third shielding structure, wherein the third shielding structure is correspondingly arranged above part of the display area;
irradiating the preprocessing color resistance layer by adopting light rays, and blocking the light rays from irradiating the preprocessing color resistance layer of the partial display area by the third blocking structure;
and removing the pretreatment color resistance layer of each hollowed-out area.
7. The method according to claim 1, wherein at least one optical sensor is disposed below the hollow area in a direction perpendicular to a plane of the display panel.
8. The method of manufacturing a display device according to claim 1,
the second area of the first polarizing layer is circular, defining a diameter d of the second area; wherein d is more than or equal to 2.5mm and less than or equal to 11 mm; or
The second area of the first polarizing layer is elliptical, and the short axis of the second area is defined as a; wherein a is more than or equal to 2.5mm and less than or equal to 11 mm.
9. A display device formed by the method for manufacturing a display device according to any one of claims 1 to 8, comprising:
the display panel comprises at least one hollow area and a display area surrounding each hollow area, the first polarizing layer comprises a first area and at least one second area, the first area and the display area are arranged correspondingly along a direction perpendicular to the plane of the display panel, and the second area and the hollow area are arranged correspondingly one to one;
the first polarizing layer includes a first substrate and dichroic organic dyes doped in the first substrate, the dichroic organic dyes in the first region are aligned in a first direction, and the dichroic organic dyes in the second region are randomly arranged.
10. The display device according to claim 9, further comprising:
the second polarizing layer is arranged on one side, far away from the first polarizing layer, of the display panel and comprises a third area and at least one fourth area, the third area and the display area are arranged correspondingly along the direction perpendicular to the plane of the display panel, and the fourth areas and the hollowed-out areas are arranged correspondingly one to one;
the second polarizing layer comprises a second substrate and dichroic organic dyes doped in the second substrate, the dichroic organic dyes in the third region are aligned along a second direction, and the dichroic organic dyes in the fourth region are randomly arranged; wherein the first direction intersects the second direction.
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| CN110619818B (en) * | 2019-08-27 | 2021-04-27 | 武汉华星光电半导体显示技术有限公司 | Display panel and manufacturing method thereof |
| CN110780375B (en) * | 2019-11-15 | 2022-07-22 | 京东方科技集团股份有限公司 | Polaroid and preparation method thereof, display panel and display device |
| CN114942550B (en) * | 2022-06-14 | 2023-12-12 | 厦门天马微电子有限公司 | Display panel and display device |
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