CN108227330B - Optical structure, display panel, display device and manufacturing method - Google Patents
Optical structure, display panel, display device and manufacturing method Download PDFInfo
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- CN108227330B CN108227330B CN201810204061.8A CN201810204061A CN108227330B CN 108227330 B CN108227330 B CN 108227330B CN 201810204061 A CN201810204061 A CN 201810204061A CN 108227330 B CN108227330 B CN 108227330B
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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
- G02F1/15—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 an electrochromic effect
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—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 an electrochromic effect
- G02F1/153—Constructional details
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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
- G02F1/15—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 an electrochromic effect
- G02F1/153—Constructional details
- G02F1/155—Electrodes
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- Optics & Photonics (AREA)
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- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention provides an optical structure, a display panel, a display device and a manufacturing method, and relates to the technical field of display. Wherein, the optical structure includes: the first transparent electrode and the second transparent electrode are oppositely arranged; the electrochromic layer is positioned between the first transparent electrode and the second transparent electrode, and can be switched between a light-transmitting state and a light-proof state under the action of an electric field between the first transparent electrode and the second transparent electrode. The invention can flexibly control the light transmittance of the electrochromic layer under the action of the electric field. Wherein, the opaque part of the electrochromic layer can be used as a black matrix. Compared with the prior art, the scheme of the invention has the advantage that the lighttight position of the electrochromic layer can be accurately controlled or changed, thereby realizing the position adjustment of the black matrix. In practical application, the scheme of the invention can correct the staggered black matrix of the display device, and can avoid light leakage of a display picture.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an optical structure, a display panel, a display device, and a manufacturing method thereof.
Background
The black matrix is a pattern for shielding light in the display device, and is provided on a display area and a non-display area of the display device.
Since the black matrix is a pattern in the display device case, it is formed on the inside of the case of the substrate before the case is attached to the display device. After the display device finishes aligning the box, due to the existence of box aligning errors, the actual position of the black matrix inevitably deviates from the expected position, and light leakage occurs in a shielding area. Particularly, the black matrix in the display area is also subjected to pixel color mixing after being shifted, so that the display effect of the picture is influenced, and poor experience is brought to a user. In addition, in some flexible display devices (e.g., flexible display devices), misalignment of the black matrix may occur after the flexible display device is bent for a long time.
At present, the black matrix is formed by depositing black matrix material and then etching, and the position cannot be changed after the black matrix is manufactured, so that the problem that the black matrix in the display device is staggered in the prior art cannot be solved.
Disclosure of Invention
The invention aims to provide an optical structure, a display panel, a display device and a manufacturing method, which are used for adjusting the position of a black matrix in the display device.
To achieve the above object, in one aspect, an embodiment of the present invention provides an optical structure including:
the first transparent electrode and the second transparent electrode are oppositely arranged;
and under the action of an electric field between the first transparent electrode and the second transparent electrode, the electrochromic layer can be switched between a light-transmitting state and a light-proof state.
Wherein the second transparent electrode is a planar electrode;
the first transparent electrode is composed of a plurality of first sub-electrodes located on a first layer and a plurality of second sub-electrodes located on a second layer, and orthographic projections of the first sub-electrodes on the second transparent electrode and orthographic projections of the second sub-electrodes on the second transparent electrode are alternately arranged.
Wherein there is no gap between the orthographic projection of the first sub-electrode on the second transparent electrode and the orthographic projection of the second sub-electrode on the second transparent electrode.
In another aspect, an embodiment of the present invention further provides a method for manufacturing an optical structure, including:
providing a substrate;
forming a first transparent electrode, an electrochromic layer and a second transparent electrode on the substrate, wherein the first transparent electrode and the second transparent electrode are oppositely arranged, and the electrochromic layer can be switched between a light-transmitting state and a light-proof state under the action of an electric field between the first transparent electrode and the second transparent electrode.
Wherein the step of forming a first transparent electrode, an electrochromic layer, and a second transparent electrode on the substrate comprises:
forming a plurality of independent first sub-electrodes on a substrate;
forming a transparent and insulating planarization layer on a substrate, the planarization layer covering the first transparent electrode;
forming a plurality of independent second sub-electrodes on the flat layer, wherein orthographic projections of the first sub-electrodes on the substrate are alternately arranged with orthographic projections of the second sub-electrodes on the substrate;
forming an electrochromic layer on a substrate;
a second transparent electrode is formed on the substrate.
In addition, an embodiment of the present invention further provides a method for manufacturing a display panel, including:
providing a display substrate;
coating frame sealing glue on a packaging area of the display substrate;
providing a pair of cell substrates on which the optical structures provided by the above-described embodiments of the present invention are formed;
and carrying out box alignment on the display substrate and the box alignment substrate.
Wherein, the manufacturing method further comprises the following steps:
after the display substrate and the box aligning substrate are aligned, controlling electric signals applied to the first transparent electrode and the second transparent electrode to enable a first part of an electrochromic layer to be in a light-transmitting state, wherein the first part corresponds to the frame sealing glue;
curing the frame sealing glue by using ultraviolet light to penetrate through the electrochromic layer on one side of the box aligning substrate away from the display substrate;
after the frame sealing glue is cured, controlling electric signals applied to the first transparent electrode and the second transparent electrode to enable the first portion to be in a light-tight state.
Wherein, the manufacturing method further comprises the following steps:
after the display substrate and the box aligning substrate are aligned, controlling electric signals applied to the first transparent electrode and the second transparent electrode to enable a second part of the electrochromic layer to be in a light-tight state, wherein the second part corresponds to a non-display area of the display substrate;
and/or the presence of a gas in the gas,
after the display substrate and the box aligning substrate are aligned, electric signals applied to the first transparent electrode and the second transparent electrode are controlled, so that a third portion of the electrochromic layer is in a light-tight state, and the third portion corresponds to a region needing light shielding in a display region of the display substrate.
In addition, an embodiment of the present invention further provides a display panel, and the display panel is manufactured by the manufacturing method of the display panel provided in the above embodiment of the present invention.
In addition, an embodiment of the present invention also provides a display device including: the invention provides the display panel.
The scheme of the invention has the following beneficial effects:
the invention can flexibly control the light transmittance of the electrochromic layer under the action of the electric field. Wherein, the opaque part of the electrochromic layer can be used as a black matrix. Compared with the prior art, the scheme of the invention has the advantage that the lighttight position of the electrochromic layer can be accurately controlled or changed, thereby realizing the position adjustment of the black matrix. In practical application, the scheme of the invention can correct the staggered black matrix in the display device, and can avoid color mixing among pixels and light leakage of a display picture.
Drawings
FIG. 1 is a schematic diagram of an optical structure provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an optical structure provided in an embodiment of the present invention in practical application;
fig. 3 is a schematic step diagram of a method for manufacturing a display panel according to an embodiment of the invention;
fig. 4 is a schematic view illustrating curing of the frame sealing adhesive in the method for manufacturing a display panel according to the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The invention provides a technical scheme capable of adjusting the position of a black matrix, which can correct the staggered black matrix in a display device.
In one aspect, embodiments of the present invention provide an optical structure, as shown in fig. 1, including:
a first transparent electrode 11 and a second transparent electrode 12 which are oppositely arranged;
an electrochromic layer 13 located between the first transparent electrode 11 and the second transparent electrode 12;
wherein electrochromic layer 13 is switchable between a transparent state and a non-transparent state under the influence of an electric field between first transparent electrode 11 and second transparent electrode 12.
Based on the optical structure of this embodiment, the light transmittance of the electrochromic layer can be flexibly controlled through the action of the electric field. The opaque part of the electrochromic layer can be used as a black matrix of the display substrate. Compared with the prior art, the embodiment has the advantages that the position of the opaque part in the electrochromic layer can be accurately controlled or changed, so that the position adjustment of the black matrix of the display substrate is realized.
Obviously, if the optical structure of the embodiment is applied to a display device, the offset of the black matrix of the display device can be corrected after the black matrix is misaligned, so as to avoid the problems of color mixing between pixels and light leakage of a display screen.
It should be noted that, once the electrochromic layer of this embodiment is in the opaque state under the action of the electric field, even if the electrochromic layer is no longer subjected to the action of the electric field subsequently, the electrochromic layer can be maintained until the electrochromic layer is subjected to the action of the electric field corresponding to another signal again, and the electrochromic layer can not be changed into the transparent state.
Specifically, the black matrix in the conventional display device is distributed at a certain rule. To enable electrochromic layer 13 to be formed with opaque portions matching the black matrix distribution. This embodiment may precisely apply an electric field to electrochromic layer 13 to purposefully control which locations of electrochromic layer 13 are in a transparent state and which locations are in a non-transparent state.
To achieve the above object, as shown in fig. 2, the second transparent electrode 12 in the present embodiment is a planar electrode;
the first transparent electrode 11 is composed of a plurality of first sub-electrodes 111 located in a first layer and a plurality of second sub-electrodes 112 located in a second layer, and the orthographic projections of the first sub-electrodes 111 on the second transparent electrode 12 are alternately arranged with the orthographic projections of the second sub-electrodes 112 on the second transparent electrode 12.
With further reference to fig. 2, assuming that the portion of electrochromic layer 13 corresponding to area a is used as a black matrix, an electrical signal may be applied to second transparent electrode 12 and first transparent electrode corresponding to first sub-electrode 111 and/or second sub-electrode 112 in area a, so as to form an electric field in area a, so as to control the portion of electrochromic layer 13 corresponding to area a to be in a light-tight state.
Obviously, based on the above structural design, the present embodiment can precisely control the position of the opaque portion of the electrochromic layer 13, so that the opaque portion conforms to the arrangement of the black matrix in the display device.
In addition, on the basis of the above, there is no gap between the orthographic projection of the first sub-electrode 111 on the second transparent electrode 12 and the orthographic projection of the second sub-electrode 112 on the second transparent electrode 12 in the present embodiment, so as to ensure that the light transmittance at any position of the electrochromic layer 13 is controlled in the area directly opposite to the first transparent electrode 11 and the second transparent electrode 12.
The above is an exemplary description of the optical structure of the present embodiment. In the present embodiment, the transmittance of electrochromic layer 13 is changed by an electric field, so that first transparent electrode 11 and second transparent electrode 12 do not need to be in direct contact with electrochromic layer 13. That is, other layer structures may be further disposed between first transparent electrode 11, electrochromic layer 13, and second transparent electrode 12 in this embodiment. Further, the second transparent electrode 12 as a planar electrode may be positioned above the first transparent electrode 11 pattern layer.
It will thus be seen that any suitable modification made in accordance with the principles described in the examples is deemed to be within the scope of the present invention.
Correspondingly, another embodiment of the present invention further provides a method for manufacturing an optical structure, including:
step one, providing a substrate;
step two, forming a first transparent electrode, an electrochromic layer and a second transparent electrode on a substrate;
the first transparent electrode and the second transparent electrode are oppositely arranged, and under the action of an electric field between the first transparent electrode and the second transparent electrode, the electrochromic layer can be switched between a light-transmitting state and a light-proof state.
Obviously, the manufacturing method of the present embodiment is used to manufacture the optical structure provided in the above embodiments of the present invention, and therefore the technical effects that can be achieved by the optical structure can also be achieved by the manufacturing method of the present embodiment.
The following describes an example of the manufacturing method of the present embodiment with reference to specific implementation manners.
The manufacturing method of the embodiment specifically comprises the following steps:
step S1, providing a substrate;
the substrate may be a glass substrate or a quartz substrate, and when applied to a display device, the substrate may be a substrate of an upper substrate or a lower substrate of the display device.
Step S2, forming a first transparent electrode on the substrate, including:
step S21, forming a plurality of independent first sub-electrodes on the substrate, wherein the first sub-electrodes may be ITO, IZO or other transparent metal oxides;
step S22, forming a transparent and insulating planarization layer on the substrate, the planarization layer covering the first transparent electrode;
step S23, forming a plurality of independent second sub-electrodes on the planarization layer, wherein the second sub-electrodes may be ITO, IZO or other transparent metal oxides; a mechanism in which orthographic projections of the first sub-electrodes on the substrate are alternately arranged with orthographic projections of the second sub-electrodes on the substrate, thereby forming the first transparent electrode shown in fig. 2;
step S3, forming an electrochromic layer on a substrate;
the forming material of the electrochromic layer can comprise an inorganic electrochromic material and/or an organic electrochromic material; typical representatives of inorganic electrochromic materials are tungsten trioxide; at present, an electrochromic device taking tungsten trioxide as a functional material is already industrialized; the organic electrochromic material mainly comprises polythiophene and derivatives thereof, viologen, tetrathiafulvalene, metal phthalocyanine compounds and the like; at present, electrochromic materials taking viologen as a functional material have been practically applied.
Step S4, forming a second transparent electrode on the substrate;
the second transparent electrode is a planar electrode and may be ITO, IZO or other transparent metal oxides.
On the other hand, another embodiment of the present invention further provides a method for manufacturing a display panel, as shown in fig. 3, including:
step 33, providing a pair of box substrates, and forming the optical structure provided by the above embodiment of the present invention on the pair of box substrates;
and step 34, performing box matching on the display substrate and the box matching substrate.
According to the manufacturing method of the embodiment, the optical structure provided by the invention can be arranged in the display panel, so that the manufactured display panel can control the light transmittance of the electrochromic layer in the optical structure, the effect of the black matrix is realized, the position of the black matrix can be flexibly controlled, and the technical effect of correcting the offset of the black matrix is achieved.
Specifically, referring to fig. 4, on the basis of the above, the display device of the present embodiment further includes:
step 35, after the display substrate 42 and the box substrate 41 are paired, controlling the electrical signals applied to the first transparent electrode and the second transparent electrode in the optical structure 43, so that the electrochromic layer of the optical structure 43 is in a transparent state at a first portion corresponding to the frame sealing adhesive 44 (in fig. 4, the electrochromic layer is distinguished in a non-transparent state except for the first portion), and an orthographic projection of the first portion on the substrate of the box substrate coincides with an orthographic projection of the frame sealing adhesive 44 on the substrate of the box substrate.
In practical applications, the electrochromic layer of this embodiment may be in a transparent state without being affected by an electric field, so that it is not necessary to actually apply an electric signal to the first transparent electrode and the second transparent electrode after applying the electric field to the cell in this step.
Step 36, curing the frame sealing glue through the electrochromic layer by using ultraviolet light on the side of the box substrate 41 away from the display substrate 42;
in this step, the ultraviolet light may specifically irradiate to the frame sealing adhesive through the first portion of the electrochromic layer.
Step 37, after the frame sealing glue is cured, controlling the electric signals applied to the first transparent electrode and the second transparent electrode to make the first part in a light-tight state, wherein the first part is used as a black matrix for shielding the frame sealing glue.
Based on the above steps, in this embodiment, when the frame sealing adhesive is cured, the first portion of the electrochromic layer corresponding to the frame sealing adhesive is in a transparent state, so that the frame sealing adhesive can be irradiated and cured by using ultraviolet light on one side of the box substrate, that is, the frame sealing adhesive is irradiated by the ultraviolet light through the box substrate.
In the conventional pair-box substrate, the opaque black matrix is directly arranged at the part corresponding to the frame sealing adhesive for shielding, so that the purple light can only irradiate the frame sealing adhesive at one side of the display substrate, namely, the ultraviolet light irradiates the frame sealing adhesive through the display substrate. The display substrate needs to be wired in the area of the frame sealing glue, which affects the transmittance of the display substrate to ultraviolet light to a certain extent, so that the frame sealing glue is not irradiated sufficiently and can only be set to a larger size for compensation.
Therefore, the curing method of the embodiment enables the frame sealing glue to be fully irradiated by ultraviolet light in the curing process, so that the size requirement on the frame sealing glue can be properly reduced, the frame area of the display panel occupied by the frame sealing glue is further reduced, and the trend of the current display device towards narrow frame development is met.
Further, on the basis of the above, the display device of the present embodiment further includes:
and step 38, after the display substrate and the box aligning substrate are aligned, controlling the electric signals applied to the first transparent electrode and the second transparent electrode to enable the second portion of the electrochromic layer to be in an opaque state, where the second portion corresponds to a non-display area of the display substrate, that is, an orthographic projection of the second portion on the display substrate coincides with the non-display area of the display substrate, and in practical applications, the area corresponding to the second portion generally refers to a frame area of the display substrate.
And/or the presence of a gas in the gas,
and 39, after the display substrate and the box aligning substrate are aligned, controlling the electric signals applied to the first transparent electrode and the second transparent electrode to enable the third part of the electrochromic layer to be in a light-tight state, wherein the third part corresponds to a region needing to be shielded in a display region of the display substrate, namely the orthographic projection of the third part on the display substrate is overlapped with the region needing to be shielded in the display region of the display substrate. In practical applications, the third partial corresponding region may be a gap region between the pixel electrodes.
Obviously, based on the above scheme, it can be known that in the present embodiment, after the display substrate and the cell-to-cell substrate are cell-to-cell, the black matrix is formed in the control electrochromic layer. Therefore, the position of the black matrix can be determined according to the situation of the corresponding box, and the forming position of the black matrix can be adaptively corrected according to the deviation of the corresponding box so as to offset the deviation of the black matrix caused by the error of the corresponding box. The scheme can shield gaps among pixels more accurately for the black matrix of the display area, and ensure that cross color and light leakage phenomena cannot occur among the pixels.
It should be noted that, in this embodiment, by controlling the electrical signals applied to the first transparent electrode and the second transparent electrode, the first portion, the second portion, and the third portion of the electrochromic layer can be in the opaque state at the same time.
In addition, another embodiment of the present invention further provides a display panel, which is manufactured by the manufacturing method of the display panel provided in the previous embodiment of the present invention.
Obviously, based on the manufacturing method of the display panel of the present invention, the display panel of the embodiment can flexibly adjust the position of the black matrix, so as to correct the offset of the black matrix, and improve the phenomena of pure color of the pixels and light leakage of the display picture, thereby having higher practicability.
In addition, another embodiment of the present invention further provides a display device, including the display panel provided in the previous embodiment of the present invention.
Based on the display panel, the display device of the present embodiment can also adjust the position of the black matrix.
In practical application, after the display device finishes box pairing, a manufacturer can correct the position of a black matrix in the display device according to the box pairing condition before the display device leaves a factory, so that the yield of the display device is improved. In addition, the subsequent display device uses the device at the user side, and if the black matrix deviates, the position of the black matrix can be readjusted after returning to a factory, so that the factory can improve better after-sales service for the user.
In practical applications, the display device of the embodiment may be: any product or component with a display function, such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet personal computer and the like.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the word "comprise" or variations such as "comprises" or "comprising" in this disclosure is intended to imply the inclusion of a stated element or item or group of elements or items preceding that word or group of elements or items and the equivalents thereof, but not the exclusion of any other element or item or group of elements or items.
Claims (8)
1. An optical structure, comprising:
the first transparent electrode and the second transparent electrode are oppositely arranged;
the electrochromic layer is positioned between the first transparent electrode and the second transparent electrode, and can be switched between a light-transmitting state and a light-proof state under the action of an electric field between the first transparent electrode and the second transparent electrode, wherein the light-proof part of the electrochromic layer is used as a black matrix, and the position of the light-proof part of the electrochromic layer is controlled or changed to realize the position adjustment of the black matrix;
the second transparent electrode is a planar electrode;
the first transparent electrode is composed of a plurality of first sub-electrodes located on a first layer and a plurality of second sub-electrodes located on a second layer, and orthographic projections of the first sub-electrodes on the second transparent electrode and orthographic projections of the second sub-electrodes on the second transparent electrode are alternately arranged.
2. The optical structure of claim 1, wherein the optical structure is a single-layer optical structure
There is no gap between the orthographic projection of the first sub-electrode on the second transparent electrode and the orthographic projection of the second sub-electrode on the second transparent electrode.
3. A method of fabricating an optical structure, comprising:
providing a substrate;
forming a first transparent electrode, an electrochromic layer and a second transparent electrode on the substrate, wherein the first transparent electrode and the second transparent electrode are oppositely arranged, and the electrochromic layer can be switched between a light-transmitting state and a light-tight state under the action of an electric field between the first transparent electrode and the second transparent electrode, wherein the light-tight part of the electrochromic layer is used as a black matrix, and the position of the light-tight part of the electrochromic layer is controlled or changed to realize the position adjustment of the black matrix;
the step of forming a first transparent electrode, an electrochromic layer, and a second transparent electrode on the substrate includes:
forming a plurality of independent first sub-electrodes on a substrate;
forming a transparent and insulating flat layer on a substrate, wherein the flat layer covers the first sub-electrode;
forming a plurality of independent second sub-electrodes on the flat layer, wherein orthographic projections of the first sub-electrodes on the substrate are alternately arranged with orthographic projections of the second sub-electrodes on the substrate;
forming an electrochromic layer on a substrate;
and forming a second transparent electrode on the substrate, wherein the second transparent electrode is a planar electrode.
4. A method for manufacturing a display panel is characterized by comprising the following steps:
providing a display substrate;
coating frame sealing glue on a packaging area of the display substrate;
providing a pair of cell substrates on which the optical structure of any one of claims 1-2 is formed;
and carrying out box alignment on the display substrate and the box alignment substrate.
5. The method of manufacturing according to claim 4, further comprising:
after the display substrate and the box aligning substrate are aligned, controlling electric signals applied to the first transparent electrode and the second transparent electrode to enable a first part of an electrochromic layer to be in a light-transmitting state, wherein the first part corresponds to the frame sealing glue;
curing the frame sealing glue by using ultraviolet light to penetrate through the electrochromic layer on one side of the box aligning substrate away from the display substrate;
after the frame sealing glue is cured, controlling electric signals applied to the first transparent electrode and the second transparent electrode to enable the first portion to be in a light-tight state.
6. The method of manufacturing according to claim 5, further comprising:
after the display substrate and the box aligning substrate are aligned, controlling electric signals applied to the first transparent electrode and the second transparent electrode to enable a second part of the electrochromic layer to be in a light-tight state, wherein the second part corresponds to a non-display area of the display substrate;
and/or the presence of a gas in the gas,
after the display substrate and the box aligning substrate are aligned, electric signals applied to the first transparent electrode and the second transparent electrode are controlled, so that a third portion of the electrochromic layer is in a light-tight state, and the third portion corresponds to a region needing light shielding in a display region of the display substrate.
7. A display panel produced by the production method according to any one of claims 4 to 6.
8. A display device, comprising: the display panel of claim 7.
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| CN108987451B (en) * | 2018-08-01 | 2021-09-24 | 京东方科技集团股份有限公司 | Display panel, control method thereof and display device |
| CN112490276A (en) * | 2020-12-11 | 2021-03-12 | 京东方科技集团股份有限公司 | Organic light emitting display panel and display device |
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| CN103760730A (en) * | 2014-01-08 | 2014-04-30 | 京东方科技集团股份有限公司 | Black matrix, method for manufacturing same, display panel and display device |
| CN103995412A (en) * | 2013-08-09 | 2014-08-20 | 深圳市亿思达显示科技有限公司 | Electronic slit grating, three-dimensional displaying device and driving method of three-dimensional displaying device |
| CN105093626A (en) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof |
| KR20170089055A (en) * | 2016-01-25 | 2017-08-03 | 삼성디스플레이 주식회사 | Display devices and methods of manufacturing display devices |
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| KR101900372B1 (en) * | 2011-07-19 | 2018-11-05 | 삼성디스플레이 주식회사 | Display device and method for manufacturing the same |
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| CN103760730A (en) * | 2014-01-08 | 2014-04-30 | 京东方科技集团股份有限公司 | Black matrix, method for manufacturing same, display panel and display device |
| CN105093626A (en) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | Display panel and manufacturing method thereof |
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