CN111190314A - Display panel, roller, manufacturing system and display device - Google Patents
Display panel, roller, manufacturing system and display device Download PDFInfo
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- CN111190314A CN111190314A CN202010022441.7A CN202010022441A CN111190314A CN 111190314 A CN111190314 A CN 111190314A CN 202010022441 A CN202010022441 A CN 202010022441A CN 111190314 A CN111190314 A CN 111190314A
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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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
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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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
- G02F1/1681—Gaskets; Spacers; Sealing of cells; Filling or closing of cells having two or more microcells partitioned by walls, e.g. of microcup type
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention discloses a display panel, a roller, a manufacturing system and a display device, wherein the display panel comprises: the driving substrate, the micro-cup matrix, the electrophoretic fluid and the electrode layer; a microcup matrix comprising: a plurality of microcup structures having openings facing the drive substrate; the electrophoresis liquid is filled in each micro-cup structure, and charged particles are doped in the electrophoresis liquid; a plurality of grooves are formed in the inner wall of the micro-cup structure opposite to the opening; the inner wall of the groove is an arc surface, and the charged particles can contact with the arc surface of the groove under the action of an electric field. In the display panel provided by the embodiment of the invention, the charged particles can be in contact with the cambered surface of the groove under the action of the electric field, and the charged particles are in surface contact with the cambered surface of the groove, so that the contact area between the charged particles and the inner wall of the microcup structure is increased, more light rays can directly irradiate the charged particles, the light energy loss of the light rays is reduced, the reflectivity of the display panel is improved, and the display effect and the contrast of the display panel are improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a roller, a manufacturing system and a display device.
Background
Modern society is an era of information and display, more and more electronic products are growing like bamboo shoots in the spring after rain, the display technology serves the transfer of information, and with the pursuit of people for information acquisition modes becoming higher and higher, traditional newspapers and magazines are gradually replaced by electronic media, which bring greater convenience to people living in the information society, and particularly the appearance of electronic paper displays overcomes the defects of high power consumption, inconvenience in carrying and the like of general electronic media.
The existing electronic paper display is of a type that electrophoretic display is multi-view, and electrophoretic display is multi-view in a microcapsule type and a micro-cup type, and has the advantages that particles are dispersed and confined in a limited range, the diffusion and aggregation of the particles are limited, and the problem of unstable display is solved.
Referring to fig. 1, as for the microcup-type electronic paper display, because the top 101 of the microcup structure (i.e., the inner surface of the microcup structure near the display surface) is flat and straight, and the charged particles P in the electrophoretic liquid 102 are spherical, the charged particles P can only make point contact with the top 101, so except that the light incident to the vertex is directly reflected by the charged particles P, the light at other positions will enter the electrophoretic liquid 102 first and then be reflected by the charged particles P, and the light will be lost in the electrophoretic liquid 102, the display brightness will be reduced, and gaps will exist between the displayed charged particles P, the display effect will be poor, and the overall display contrast ratio is low.
Disclosure of Invention
The embodiment of the invention provides a display panel, a roller, a manufacturing system and a display device, which are used for solving the problem of poor display effect of a micro-cup type electronic paper display in the prior art.
In a first aspect, an embodiment of the present invention provides a display panel, including: the electrophoresis device comprises a driving substrate, a micro-cup matrix, an electrophoresis solution and an electrode layer, wherein the micro-cup matrix is positioned on the driving substrate;
the micro-cup substrate comprises: a plurality of microcup structures having openings facing the driving substrate;
the electrophoresis liquid is filled in each micro-cup structure, and charged particles are doped in the electrophoresis liquid;
a plurality of grooves are formed in the inner wall of the micro-cup structure opposite to the opening;
the inner wall of the groove is an arc surface, and the charged particles can be in contact with the arc surface of the groove under the action of an electric field.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the charged particles are spherical;
the radius of curvature of the cambered surface is greater than or equal to the radius of the charged particles.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the shape of the groove is hemispherical.
In a possible implementation manner, in the display panel provided by the embodiment of the present invention, a diameter of the groove is greater than or equal to a diameter of the charged particle.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, in the microcup structure, adjacent grooves are tangentially arranged.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the display panel further includes: a sealing layer located between the microcup matrix and the driving substrate;
the sealing layer is used for sealing the opening of each microcup structure.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the display panel further includes: and the protective layer is positioned on one side of the electrode layer, which is far away from the microcup matrix.
In a second aspect, an embodiment of the present invention further provides a roller for manufacturing the micro-cup structure in the display panel, including: a roller body;
the surface of the roller body is provided with a plurality of first bulges which are consistent with the shape and the size of the micro-cup structure;
the surface of the first bulge is provided with a plurality of second bulges which are consistent with the shape and the size of the groove in the microcup structure.
In a third aspect, an embodiment of the present invention further provides a manufacturing system for manufacturing the display panel, including: the above-mentioned gyro wheel.
In a fourth aspect, an embodiment of the present invention further provides a display device, including: the display panel is provided.
The invention has the following beneficial effects:
the display panel, the roller, the manufacturing system and the display device provided by the embodiment of the invention comprise: the driving substrate, the micro-cup matrix positioned on the driving substrate, the electrophoretic fluid and the electrode layer positioned on one side of the micro-cup matrix, which is far away from the driving substrate; a microcup matrix comprising: a plurality of microcup structures having openings facing the drive substrate; the electrophoresis liquid is filled in each micro-cup structure, and charged particles are doped in the electrophoresis liquid; a plurality of grooves are formed in the inner wall of the micro-cup structure opposite to the opening; the inner wall of the groove is an arc surface, and the charged particles can contact with the arc surface of the groove under the action of an electric field. In the display panel provided by the embodiment of the invention, the inner wall of the micro-cup structure opposite to the opening is provided with the plurality of grooves, the inner walls of the grooves are cambered surfaces, charged particles can be in contact with the cambered surfaces of the grooves under the action of an electric field, and the charged particles are in surface contact with the cambered surfaces of the grooves, so that the contact area between the charged particles and the inner walls of the micro-cup structure is increased, more light rays can directly irradiate the charged particles, the light energy loss of the light rays is reduced, the reflectivity of the display panel is improved, the display brightness is improved, and the display effect and the contrast of the display panel are improved.
Drawings
FIG. 1 is a schematic diagram of light emitted to charged particles according to the prior art;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of light rays emitted to charged particles according to an embodiment of the present invention;
fig. 4 to 6 are schematic structural views of grooves according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the distribution of the grooves in the micro-cup structure according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of the display effect of a display panel with a planar top portion of the micro-cup structure;
FIG. 9 is a schematic diagram of the display effect of the display panel with the top of the micro-cup structure having a groove;
FIG. 10 is a schematic diagram of a display panel with a planar top portion of the micro-cup structure;
FIG. 11 is a schematic diagram of a display panel with a groove on the top of the micro-cup structure;
FIG. 12 is a schematic structural diagram of a roller according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a manufacturing system according to an embodiment of the present invention.
Detailed Description
Aiming at the problem that the display effect of a micro-cup type electronic paper display in the prior art is poor, the embodiment of the invention provides a display panel, a roller, a manufacturing system and a display device.
The following describes in detail specific embodiments of a display panel, a roller, a manufacturing system, and a display device according to embodiments of the present invention with reference to the accompanying drawings. The thicknesses and shapes of the various film layers in the drawings are not to be considered true proportions, but are merely intended to illustrate the present invention.
In a first aspect, an embodiment of the present invention provides a display panel, as shown in fig. 2, including: a driving substrate 11, a micro-cup matrix 12 positioned on the driving substrate 11, an electrophoretic liquid 13, and an electrode layer 14 positioned on one side of the micro-cup matrix 12, which is far away from the driving substrate 11;
a microcup matrix 12 comprising: a plurality of microcup structures 121 having openings facing the drive substrate 11;
the electrophoretic liquid 13 is filled in each micro-cup structure 121, and charged particles P are doped in the electrophoretic liquid 13;
a plurality of grooves U are formed in the inner wall of the micro-cup structure 121 opposite to the opening;
the inner wall of the groove U is an arc surface, and the charged particles P can contact with the arc surface of the groove U under the action of an electric field.
In the display panel provided by the embodiment of the invention, the inner wall of the micro-cup structure opposite to the opening is provided with the plurality of grooves, the inner walls of the grooves are cambered surfaces, charged particles can be in contact with the cambered surfaces of the grooves under the action of an electric field, and the charged particles are in surface contact with the cambered surfaces of the grooves, so that the contact area between the charged particles and the inner walls of the micro-cup structure is increased, more light rays can directly irradiate the charged particles, the light energy loss of the light rays is reduced, the reflectivity of the display panel is improved, the display brightness is improved, and the display effect and the contrast of the display panel are improved.
The display panel provided by the embodiment of the invention can be applied to a micro-cup type electronic paper display, the micro-cup substrate 12 includes a plurality of micro-cup structures 121, the electrophoretic fluid 13 is filled in each micro-cup structure 121, and the electrophoretic fluid 13 is transparent, the electrophoretic liquid 13 is doped with charged particles P, the charged particles P can be classified into particles of two colors, black and white, or three colors, black and white and red, or other colors, or may include more colors, which is not limited herein, and the charged particles P are controlled to reach the top of the microcup structure 121 by applying different voltages between the driving substrate 11 and the electrode layer 14 for displaying, it should be noted that, in the embodiment of the present invention, the top of the microcup structure refers to the interior of the microcup structure opposite the opening or may also be understood as the interior wall of the microcup structure on the side close to the display surface.
Specifically, taking the charged particles P shown in fig. 2 divided into black and white particles as an example, when a positive voltage is applied between the driving substrate 11 and the electrode layer 14, as in the cup structure 121 on the left side in fig. 2, the negatively charged black particles P reach the top of the cup structure 121 under the driving of the electric field, so as to implement black display, when a negative voltage is applied between the driving substrate 11 and the electrode layer 14, as in the cup structure 121 located at the middle position in fig. 2, the positively charged white particles P reach the top of the cup structure 121 under the driving of the electric field, so as to implement white display, and when neither the charged black nor the white particles P reach the top of the cup structure 121, as in the cup structure 121 on the right side in fig. 2, so as to implement gray scale display.
In a specific implementation, the driving substrate 11 may include a plurality of driving electrodes and thin film transistors, so as to apply different voltages to different microcup structures 121, thereby implementing a picture display. The electrode layer 14 may be made of a transparent conductive material, so that the display effect of the display panel is not affected, for example, the electrode layer 14 may be made of an Indium Tin Oxide (ITO) material.
Meanwhile, referring to fig. 3, because the inner wall of the micro-cup structure 121 opposite to the opening is provided with the plurality of grooves U, and the inner wall of each groove U is an arc surface, the charged particles P reach the top of the micro-cup structure 121 under the action of the electric field, and the charged particles P can be in surface contact with the arc surface of each groove U, more light can directly irradiate the charged particles P without passing through the electrophoretic liquid 13, so that the loss of the light is reduced.
In practical applications, in the display panel provided in the embodiment of the present invention, as shown in fig. 4, the charged particles are spherical;
the radius of curvature of the cambered surface is greater than or equal to the radius of the charged particles.
In the embodiment of the invention, the spherical charged particles are adopted, so that the movement of the charged particles can be controlled more easily, and the contact area of each charged particle and the cambered surface of the groove can be consistent, so that the display is more uniform.
As shown in FIG. 4, the curvature radius of the arc surface of the groove U is R, the curvature radius of the charged particles is R, R is larger than or equal to R, and the charged particles P can enter the groove U when moving to the top of the micro-cup structure, so as to be in contact with the arc surface of the groove U.
Taking the structure shown in fig. 4 as an example, the inner wall of the groove U is set to be a cambered surface, although part of light rays emitted to the charged particles P still pass through the electrophoretic fluid, compared with the structure in which the top of the microcup structure is a plane, the structure shown in fig. 4 can shorten the optical path of the microcup structure in the electrophoretic fluid, reduce the loss of light rays in the electrophoretic fluid, and improve the display effect.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 5, the shape of the groove U is a hemisphere, so that an optical path of more light rays in the electrophoretic solution can be shortened, and the display effect is further improved.
In specific implementation, in the display panel provided in the embodiment of the present invention, as shown in fig. 5 and 6, the diameter of the groove U is greater than or equal to the diameter of the charged particle P, so that the charged particle P can enter the groove U and contact the arc surface of the groove U when moving to the top of the micro-cup structure, and as shown in fig. 6, when the diameter of the groove U is equal to the diameter of the charged particle P, the charged particle P can completely attach to the inner wall of the groove U, so that the contact area between the charged particle P and the arc surface of the groove U is larger, and thus the light can be directly reflected from the charged particle P, and the loss of the light is reduced. In practical applications, in order to ensure that the charged particles P more easily enter and leave the interior of the groove U, the diameter of the groove U may be set slightly larger than the diameter of the charged particles P.
It should be noted that in fig. 4 to 6, for the sake of more clearly illustrating the shape of the groove U and the size relationship between the groove U and the charged particles P, the groove U is only indicated by an arc, and the charged particles P are illustrated as being in contact with the groove U and not as being in contact with the groove U all the time, and in the practical application, the charged particles P can be moved under the control of the electric field.
Further, in the display panel provided by the embodiment of the invention, as shown in fig. 7, in the microcup structure 121, adjacent grooves U are tangentially arranged. In order to more clearly illustrate the arrangement of the grooves U, only one microcup structure 121 is illustrated in fig. 7, and a limited number of grooves U are illustrated, and the number of microcup structures and grooves are not limited.
When recess U is hemispherical, with the tangent setting of adjacent recess U, can make charged particle arrive the top of little cup structure, distance between the adjacent charged particle is less, make the pixel that charged particle shows denser, when recess U's diameter equals or is slightly more than charged particle P's diameter, when can making charged particle arrive the top of little cup structure, also tangent between the adjacent charged particle, thereby make the pixel that adjacent charged particle shows also tangent, make the pixel that charged particle shows denser, so that display panel's display effect is better.
In specific implementation, when the grooves U are in a spherical segment shape smaller than a hemispherical shape, a set distance needs to be reserved between adjacent grooves U to ensure that the adjacent grooves U can enable charged particles to enter.
Specifically, as shown in fig. 2, the display panel provided in the embodiment of the present invention may further include: a sealing layer 15 between the microcup body 12 and the driving substrate 11;
and a sealing layer 15 for sealing the opening of each micro-cup structure 121.
The openings of the respective microcup structures 121 in the microcup matrix 12 face the drive substrate 11, and the openings of the respective microcup structures 121 can be sealed by providing the sealing layer 15, thereby preventing the electrophoretic liquid 13 and the charged particles P in the microcup structures 121 from leaking out. Specifically, the sealing layer 15 may be made of a sealant.
Optionally, as shown in fig. 2, the display panel provided in the embodiment of the present invention may further include: and a protective layer 16 on the side of the electrode layer 14 facing away from the microcup matrix 12.
The protective layer 16 is disposed on a side of the electrode layer 14 away from the micro-cup substrate 12, so as to protect the internal structure of the display panel, and specifically, the protective layer 16 may be made of a polyethylene terephthalate (PET) material.
The following describes in detail the display effect of the display panel provided by the embodiment of the present invention with reference to the drawings.
Fig. 8 is a schematic diagram of a display effect of a display panel with a plane top portion of a micro-cup structure, fig. 9 is a schematic diagram of a display effect of a display panel with a groove on a top portion of a micro-cup structure, in order to clearly illustrate the display effect of the display panel, the display panel illustrated in fig. 8 and 9 corresponds to only one micro-cup structure, and the display effect of the display panel at the micro-cup structure is illustrated on the right side of the display panel, and fig. 8 and 9 are respectively illustrated in three modes of black display, white display and gray scale display, it can be known that the display effect in each mode in fig. 8 and 9 is compared respectively, the pixel points displayed by the display panel illustrated in fig. 9 in each mode are more dense, so that the black display mode is darker, the white display mode is more white, and the gray scale display mode is clearer, therefore, the contrast of the display panel illustrated in fig. 9 is higher, and thus the display effect will be better.
In addition, the display panel in the embodiment of the present invention may further implement three-color display, for example, the charged particles may be divided into three colors, i.e., black, white and red, and the charged particles may also be other colors, which is not limited herein. Fig. 10 is a schematic structural view of a display panel having a microcup structure with a flat top, fig. 11 is a schematic structural view of a display panel having a microcup structure with a groove formed in the top, and charged particles P filled in gray in fig. 10 and 11 represent red charged particles. In order to control the charged particles P of each color separately, it is necessary that the charged particles of two colors are charged with the same kind and different sizes, for example, the charged particles of red and white are both charged with positive charges. As shown in fig. 10, since the top of the microcup structure is a plane, when the red and white charged particles P reach the top of the microcup structure under the control of the electric field, the red and white particles are likely to affect each other, for example, the first row and the second row of the red charged particles are pushed away by the white charged particles, thereby causing a color mixing phenomenon. As shown in fig. 11, since the top of the micro-cup structure in the embodiment of the invention is provided with the groove, the charged particles P are not easily squeezed away by other charged particles P under the limitation of the groove, so that the charged particles P with the same charge and different colors can be prevented from influencing each other, and the color mixing phenomenon can be avoided.
In a second aspect, based on the same inventive concept, an embodiment of the present invention further provides a roller for manufacturing the micro-cup structure in the display panel, and since a principle of the roller for solving the problem is similar to that of the display panel, the roller may be implemented by referring to the implementation of the display panel, and repeated details are not repeated.
As shown in fig. 12, the roller for manufacturing the micro-cup structure in the display panel according to the embodiment of the present invention includes: a roller body 20;
the surface of the roller body 20 is provided with a plurality of first bulges 201 which are consistent with the shape and the size of the structure of the microcups;
the surface of the first protrusion 201 is provided with a plurality of second protrusions T conforming to the shape and size of the recesses in the micro-cup structure.
In the manufacturing process of the display panel, the roller can be used for pressing the micro-cup structures on the micro-cup substrate, the first protrusions 201 in the roller are consistent with the micro-cup structures in shape and size, a plurality of micro-cup structures can be pressed by controlling the roller to roll, the cross section of the roller is shown in fig. 12, in practical application, the arrangement of the first protrusions 201 on the surface of the roller body 20 can be set according to the arrangement of the micro-cup structures, and the arrangement of the first protrusions 201 is not limited here.
Through set up a plurality of second archs T unanimous with the shape and the size of recess in the little cup structure on the surface of first arch 201, the gyro wheel can form a plurality of recesses on the inner wall of little cup structure when extruding little cup structure on the little cup base member, and preparation simple process, the cost is lower.
In addition, in order to avoid process errors and ensure that charged particles can enter the grooves before being driven by the electric field, the size of the second protrusions T can be set to be slightly larger than that of the grooves in the microcup structure.
In a third aspect, based on the same inventive concept, an embodiment of the present invention further provides a manufacturing system for manufacturing the display panel, as shown in fig. 13, including: the above-mentioned roller 20. Because the principle of the manufacturing system for solving the problems is similar to that of the display panel and the roller, the manufacturing system can be implemented by referring to the display panel and the roller, and repeated details are omitted.
As shown in fig. 13, the display panel in the embodiment of the present invention may be manufactured by the following processes:
and the process A is to coat a plastic film base plate to form the microcup matrix.
And B, performing mould pressing on the micro-cup matrix obtained in the process A, namely extruding the micro-cup matrix by using the roller, so as to obtain a plurality of micro-cup structures.
And C, dropping the electrophoretic fluid doped with the charged particles into the microcup structure obtained in the process B, and sealing each microcup structure to form a sealing layer.
And D, forming an electrode layer and a protective layer on the sealing layer, and cutting the formed structure.
And then, combining the side of the micro-cup structure, which is far away from the protective layer, with the manufactured driving panel, and then performing some necessary module processes, such as binding the driving chip and the flexible circuit board, gluing and the like, so as to complete the manufacturing of the display panel.
In a fourth aspect, based on the same inventive concept, an embodiment of the present invention further provides a display device, including the display panel, where the display device may be applied to any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator. Since the principle of the display device to solve the problem is similar to that of the display panel, the display device can be implemented by the display panel, and repeated descriptions are omitted.
According to the display panel, the roller, the manufacturing system and the display device provided by the embodiment of the invention, the inner wall of the micro-cup structure, which is opposite to the opening, is provided with the plurality of grooves, the inner walls of the grooves are cambered surfaces, charged particles can be in contact with the cambered surfaces of the grooves under the action of an electric field, and the charged particles are in surface contact with the cambered surfaces of the grooves, so that the contact area between the charged particles and the inner walls of the micro-cup structure is increased, more light rays can directly irradiate the charged particles, the light energy loss of the light rays is reduced, the reflectivity of the display panel is improved, the display brightness is improved, the display effect and the contrast of the display panel are improved, the mutual influence among charged particles with the same charge and different colors is avoided, and the color mixing phenomenon is avoided.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A display panel, comprising: the electrophoresis device comprises a driving substrate, a micro-cup matrix, an electrophoresis solution and an electrode layer, wherein the micro-cup matrix is positioned on the driving substrate;
the micro-cup substrate comprises: a plurality of microcup structures having openings facing the driving substrate;
the electrophoresis liquid is filled in each micro-cup structure, and charged particles are doped in the electrophoresis liquid;
a plurality of grooves are formed in the inner wall of the micro-cup structure opposite to the opening;
the inner wall of the groove is an arc surface, and the charged particles can be in contact with the arc surface of the groove under the action of an electric field.
2. The display panel according to claim 1, wherein the charged particles are spherical;
the radius of curvature of the cambered surface is greater than or equal to the radius of the charged particles.
3. The display panel of claim 2, wherein the recess is hemispherical in shape.
4. The display panel of claim 3, wherein a diameter of the groove is greater than or equal to a diameter of the charged particles.
5. The display panel of claim 3, wherein adjacent grooves in the microcup structure are arranged tangentially.
6. The display panel according to any one of claims 1 to 5, further comprising: a sealing layer located between the microcup matrix and the driving substrate;
the sealing layer is used for sealing the opening of each microcup structure.
7. The display panel according to any one of claims 1 to 5, further comprising: and the protective layer is positioned on one side of the electrode layer, which is far away from the microcup matrix.
8. A roller for manufacturing the micro-cup structure in the display panel according to any one of claims 1 to 7, comprising: a roller body;
the surface of the roller body is provided with a plurality of first bulges which are consistent with the shape and the size of the micro-cup structure;
the surface of the first bulge is provided with a plurality of second bulges which are consistent with the shape and the size of the groove in the microcup structure.
9. A production system for producing the display panel according to any one of claims 1 to 7, comprising: a wheel according to claim 8.
10. A display device, comprising: a display panel according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010022441.7A CN111190314A (en) | 2020-01-09 | 2020-01-09 | Display panel, roller, manufacturing system and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010022441.7A CN111190314A (en) | 2020-01-09 | 2020-01-09 | Display panel, roller, manufacturing system and display device |
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| CN111190314A true CN111190314A (en) | 2020-05-22 |
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| CN202010022441.7A Pending CN111190314A (en) | 2020-01-09 | 2020-01-09 | Display panel, roller, manufacturing system and display device |
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| US20080024432A1 (en) * | 2006-07-31 | 2008-01-31 | Woo Jae Lee | Electrophoretic display device and fabrication thereof |
| US20110013257A1 (en) * | 2009-07-15 | 2011-01-20 | Au Optronics Corporation | Electro-phoretic display film, electro-phoretic display panel, and fabricating method thereof |
| CN102707533A (en) * | 2011-05-27 | 2012-10-03 | 京东方科技集团股份有限公司 | Method for producing electrophoretic display device and film forming die |
| US20160026061A1 (en) * | 2013-03-22 | 2016-01-28 | Vlyte Innovations Limited | Electrophoretic device having a transparent light state |
| CN106249501A (en) * | 2015-06-08 | 2016-12-21 | 御智管理顾问有限公司 | Display layer structure, display module and preparation method thereof |
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| US20080024432A1 (en) * | 2006-07-31 | 2008-01-31 | Woo Jae Lee | Electrophoretic display device and fabrication thereof |
| US20110013257A1 (en) * | 2009-07-15 | 2011-01-20 | Au Optronics Corporation | Electro-phoretic display film, electro-phoretic display panel, and fabricating method thereof |
| CN102707533A (en) * | 2011-05-27 | 2012-10-03 | 京东方科技集团股份有限公司 | Method for producing electrophoretic display device and film forming die |
| US20160026061A1 (en) * | 2013-03-22 | 2016-01-28 | Vlyte Innovations Limited | Electrophoretic device having a transparent light state |
| CN106249501A (en) * | 2015-06-08 | 2016-12-21 | 御智管理顾问有限公司 | Display layer structure, display module and preparation method thereof |
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Application publication date: 20200522 |