CN114217487A

CN114217487A - Reflective display panel, manufacturing method and display device

Info

Publication number: CN114217487A
Application number: CN202111540348.6A
Authority: CN
Inventors: 康昭; 赵仲兰; 黄华; 李树磊; 朱小研
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-03-22

Abstract

The invention discloses a reflective display panel, a manufacturing method and a display device. The reflective display panel of one embodiment includes: the display device comprises a first substrate, a second substrate, a barrier layer and a sub-pixel, wherein the first substrate and the second substrate are oppositely arranged, the barrier layer is arranged between the first substrate and the second substrate and comprises a plurality of opening areas, and the sub-pixel is positioned in each opening area; wherein the sub-pixels comprise an ink material; the barrier layer includes: a first barrier formed on the first substrate; and a second barrier formed on the second substrate corresponding to the first barrier; the surface of the first barrier portion facing the second substrate is attached to the surface of the second barrier portion facing the first substrate, so that the adjacent sub-pixels are independently arranged. The reflective display panel of the embodiment of the invention can prevent the black ink particles in the sub-pixels from moving among different sub-pixels, thereby improving the display uniformity of the reflective display panel and improving the display effect.

Description

Reflective display panel, manufacturing method and display device

Technical Field

The invention relates to the technical field of display. And more particularly, to a reflective display panel, a method of manufacturing the same, and a display device.

Background

At present, display devices can be classified into three types, i.e., transmissive, reflective, and transflective, according to the type of light source (including backlight or ambient light) used in the display device. The reflective display panel reflects ambient light incident into the reflective display panel to realize display. Because the reflective display panel does not need to be additionally provided with a backlight module to provide backlight for the display of the reflective display panel, the reflective display panel is widely concerned and applied. However, the reflective display panel in some technologies has a problem of poor display uniformity in bright state display, resulting in poor display effect.

Disclosure of Invention

The present invention is directed to a display panel, a method for manufacturing the same, and a display device, so as to solve at least one of the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a first aspect of the present invention provides a reflective display panel comprising:

the display device comprises a first substrate, a second substrate, a barrier layer and a sub-pixel, wherein the first substrate and the second substrate are oppositely arranged, the barrier layer is arranged between the first substrate and the second substrate and comprises a plurality of opening areas, and the sub-pixel is positioned in each opening area;

wherein the sub-pixels comprise an ink material;

the barrier layer includes:

a first barrier formed on the first substrate; and

a second barrier formed on the second substrate corresponding to the first barrier;

the surface of the first barrier portion facing the second substrate is attached to the surface of the second barrier portion facing the first substrate, so that the adjacent sub-pixels are independently arranged.

Further, the display panel further includes a filter layer formed on a surface of the second substrate facing the first substrate, the filter layer including:

a light shielding layer disposed corresponding to the blocking layer; and

a color filter disposed corresponding to the sub-pixel;

the projection of the light shielding layer on the first substrate covers the projection of the first barrier part on the first substrate and covers the projection of the second barrier part on the first substrate.

Further, the display panel further includes: and a lens array formed on a surface of one side of the filter layer facing the first substrate, the lens array including a plurality of curved lenses, curved surfaces of the curved lenses facing the first substrate, the second blocking portion being formed on the curved surfaces.

Further, the material of the first barrier part is thermoplastic material;

the second blocking part is made of wave-absorbing materials;

the first substrate is a driving circuit substrate, and the second substrate is a color film substrate.

A second aspect of the invention provides a method of making the reflective display panel of the first aspect of the invention, the method comprising:

forming a first barrier portion of the barrier layer on the first substrate;

forming a second barrier portion of the barrier layer corresponding to the second barrier portion on the second substrate;

forming an ink material layer of a sub-pixel on the first substrate or the second substrate;

and oppositely packing the first substrate and the second substrate to form a barrier layer comprising a plurality of opening areas and sub-pixels positioned in each opening area, wherein the surface of the first barrier part facing the second substrate is attached to the surface of the second barrier part facing the first substrate so that the adjacent sub-pixels are independently arranged.

Further, the forming of the first barrier portion of the barrier layer on the first substrate includes:

forming a first barrier material layer on the first substrate, wherein the first barrier part is made of a wave-absorbing material; patterning the first barrier material layer to form the first barrier.

Further, the material of the second barrier portion is thermoplastic material.

Further, the display panel further comprises a filter layer arranged on the surface of one side, facing the first substrate, of the second substrate;

before forming a second barrier of the barrier layer corresponding to the second barrier on the second substrate, the method further includes:

and forming a filter layer on the surface of one side, facing the first substrate, of the second substrate, wherein the filter layer comprises a light shielding layer and a color filter, the light shielding layer is arranged corresponding to the barrier layer, the color filter is arranged corresponding to the sub-pixel, and the projection of the light shielding layer on the first substrate covers the projection of the first barrier part on the first substrate and covers the projection of the second barrier part on the first substrate.

Further, the display panel further comprises a lens array arranged on the surface of one side, facing the first substrate, of the filter layer;

and forming a lens array on the surface of one side, facing the first substrate, of the filter layer, wherein the lens array comprises a plurality of curved lenses, the curved surfaces of the curved lenses face the first substrate, and the second blocking part is formed on the curved surfaces.

Further, the pair of cells of the first substrate and the second substrate to form a barrier layer including a plurality of opening regions and a sub-pixel in each of the opening regions further includes:

forming frame sealing glue on the second substrate or the first substrate;

aligning the first substrate and the second substrate;

and heating the first substrate and the second substrate after box alignment, wherein the surface of the first barrier part facing the second substrate and the surface of the second barrier part facing the first substrate are attached to form the barrier layer, and the sub-pixels are respectively formed in a plurality of opening areas of the barrier layer.

A third aspect of the invention provides a display device comprising a reflective display panel as provided in the first aspect of the invention.

The invention has the following beneficial effects:

according to the technical scheme, the barrier layer is arranged into the first barrier part and the second barrier part which are respectively formed on the two substrates, the barrier layer is formed by the first barrier part and the second barrier part together, the problem of different barrier layer heights caused by process errors is effectively solved, the formed opening area is in a closed state, sub-pixels formed in each opening area are further mutually independent, black ink particles in the sub-pixels are effectively prevented from moving among different sub-pixels, the display uniformity of the reflective display panel is improved, the display effect is improved, and the reflective display panel has a wide application prospect.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1a is a schematic structural diagram of a prior art E-Ink reflective display panel in a bright state;

FIG. 1b is a schematic diagram of a prior art E-Ink reflective display panel in a dark state;

FIG. 2a is a schematic diagram of a CID reflective display panel of the prior art;

FIG. 2b is a schematic diagram illustrating a top view of a CID reflective display panel according to the prior art;

FIG. 3 is a schematic diagram of a reflective display panel according to an embodiment of the invention;

FIG. 4 is a flow chart of a method of fabricating a reflective display panel according to another embodiment of the present invention;

fig. 5a to 5e are process flow diagrams for fabricating the reflective display panel of fig. 3 according to the embodiment of the invention.

Detailed Description

It is further noted that, in the description of the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The reflective display panel is a device structure which utilizes natural environment light to display, can realize clear display by utilizing the environment light under strong light or weak light, and has the advantages of small driving voltage, energy conservation and small damage to eyes. Current reflective display panels may include: an electronic Ink (E-Ink) reflective display device and a Clear-Ink (cid) reflective display device.

The working principle of the E-Ink reflective display panel in the prior art is as follows: when voltage is applied to the electrodes in the reflective display panel, white particles in the ink move to the surface of the dielectric layer on the display side, black particles in the ink move to the side opposite to the display side, and light is reflected to realize bright-state display; when a voltage is applied to the electrodes in the reflective display, the white particles in the ink move to the side opposite to the display side, and the black particles in the ink move to the surface of the dielectric layer on the display side, so that the light is directly absorbed to realize dark state display.

Fig. 1a is a schematic structural diagram of an E-Ink reflective display panel in the prior art in a bright state display, and fig. 1b is a schematic structural diagram of the E-Ink reflective display panel in a dark state display. As shown in fig. 1a and 1b, the reflective display panel may include: a first substrate 111 and a second substrate 121 disposed opposite to each other, a first electrode 112 disposed on a side of the first substrate 111 close to the second substrate 121, a second electrode 122 disposed on a side of the second substrate 121 close to the first substrate 111, and a microcapsule 13 disposed between the first electrode 112 and the second electrode 122, the microcapsule 13 may include: ink 14 includes white microparticles 141 (also referred to as white ink particles or white microsphere particles) and black microparticles 142 (also referred to as black ink particles or black microsphere particles), wherein the black microparticles 142 and the white microparticles 141 carry different charges. For example, when the first electrode 112 and the second electrode 122 are not energized, the black particles 142 are negatively charged, the white particles 141 are positively charged, and the entire microcapsule 13 is electrically balanced. For example, as shown in fig. 1a, when a positive voltage is applied to the first electrode 112, the black particles 142 approach the first electrode 112, the white particles 141 are distributed above the micro-capsule 13, and the ambient light incident from the second substrate 121 is reflected at the white particles 141 in the micro-capsule 13, so that the display device can display a bright state. For example, as shown in fig. 1b, when the first electrode 112 is applied with a negative voltage, the white particles 141 approach the first electrode 112, the black particles 142 are distributed above the microcapsules 13, and the ambient light incident from the second substrate 121 is absorbed at the black particles 142 in the microcapsules 13, so that the display device can display a dark state.

Another CID reflective display panel in the prior art works according to the following principle: when voltage is applied to the electrodes in the reflective display panel, the black ink particles in the sub-pixels move to the side opposite to the display side, and bright state display is realized by utilizing total reflection realized by the high refractive index of the dielectric layer and the low refractive index of the electronic ink; when a voltage is applied to the electrodes in the reflective display panel, the black ink particles in the sub-pixels move to the surface of the dielectric layer on the display side, so that light is directly absorbed to realize dark state display.

Compared with an E-ink reflective display panel, the CID reflective display panel has the advantages of low driving voltage, low energy consumption and capability of realizing colorized display, but the conventional CID reflective display panel has the problem of poor display uniformity. For this problem, the inventors have found through extensive studies and experiments that the main cause of the problem is:

as shown in fig. 2a, the conventional CID reflective display panel forms an opening region by using a retaining wall structure 23 ' disposed between a first substrate 21 ' and a second substrate 22 ', and a sub-pixel 24 ' is disposed in the opening region to form a schematic structure in a plan view as shown in fig. 2b, the retaining wall structure 23 ' and a sealant 25 ' located in a boundary region form a plurality of opening regions arranged in an array, and the sub-pixel 24 ' is disposed in each opening region. The CID reflective display panel requires that each of the retaining wall structures 23 'is completely closed to form a closed space, otherwise the black ink particles in the sub-pixels 24' will shuttle between the adjacent sub-pixels, and the black ink particles in some sub-pixels are reduced, resulting in poor uniformity in the display state.

However, in the actual process of fabricating the retaining wall structures, the heights of the retaining wall structures around the sub-pixels cannot be completely guaranteed to be the same due to process fluctuation, and as shown in fig. 2a, the heights of two adjacent retaining wall structures 23' are not the same. Even a height difference of 0. mu.m may cause the nano-scale black ink particles to shuttle between adjacent sub-pixels, resulting in poor display.

Based on the above problems and researches, the present invention provides a reflective display panel, a manufacturing method thereof, and a display device, so as to solve the above problems.

A first embodiment of the present invention provides a reflective display panel, as shown in fig. 3, including:

a first substrate 31 and a second substrate 32 disposed opposite to each other, a barrier layer 33 including a plurality of opening regions disposed between the first substrate 31 and the second substrate 32, and a sub-pixel 34 in each of the opening regions;

wherein the sub-pixels comprise an ink material;

the barrier layer 33 includes:

a first barrier 331 formed on the first substrate 31; and

a second barrier portion 332 formed on the second substrate 32 corresponding to the first barrier portion 331;

the surface of the first barrier 331 facing the second substrate 32 and the surface of the second barrier 332 facing the first substrate 31 are attached to each other so that the adjacent sub-pixels 34 are independently disposed.

According to the reflective display panel provided by the embodiment of the invention, the barrier layer is set to be the first barrier part and the second barrier part which are respectively formed on the two substrates, and the barrier layer is formed by the first barrier part and the second barrier part together, so that the problem of different barrier layer heights caused by process errors is effectively solved, the formed opening area is in a closed state, sub-pixels formed in each opening area are further mutually independent, black ink particles in the sub-pixels are effectively prevented from moving among different sub-pixels, the display uniformity of the reflective display panel is improved, and the display effect is improved.

In an alternative embodiment, the first substrate is a driving TFT substrate, and a driving TFT transistor and a driving circuit are disposed on the first substrate, in a specific example, as shown in fig. 3, an insulating layer 35 is formed on the first substrate 31 to ensure normal operation of the driving circuit, and for example, a layer of silicon oxide or silicon nitride may be used as the insulating layer 35.

In an optional embodiment, the material of the first barrier is a wave-absorbing material, and the material of the first barrier includes one or more of carbon nanotubes, ferrite, or a nano-absorber. In this embodiment, the first barrier portions 331 are not only used to form the barrier layers 33 by being attached to the corresponding second barrier portions 332 to block the sub-pixels 34, but also used to absorb electromagnetic waves, thereby prolonging the service life of the reflective display panel.

In an optional embodiment, the second substrate is a color filter substrate, as shown in fig. 3, the display panel further includes a filter layer 36 formed on a surface of the second substrate 32 facing the first substrate 31, where the filter layer 36 includes:

a light-shielding layer 361 provided corresponding to the barrier layer 33; and

and a color filter 362 disposed corresponding to the sub-pixel 34.

In this embodiment, the light-shielding layer 361 is provided between the adjacent color filters 362 to prevent crosstalk between light rays of different colors.

In order to avoid the influence of the blocking layer 33 on the light emitting effect, the blocking layer 33 of this embodiment is disposed at the position of the light shielding layer 361, and the projection of the light shielding layer 361 on the first substrate 31 covers the projection of the first blocking portion 331 on the first substrate 31 and covers the projection of the second blocking portion 332 on the first substrate 31, so as to ensure that the first blocking portion 331 and the second blocking portion 332 are completely disposed at the position of the light shielding layer 361, and the light emitting effect of the reflective display panel is not affected.

In an alternative embodiment, as shown in fig. 3, the display panel further includes: a lens array 37 formed on a surface of the filter layer 36 facing the first substrate 31, the lens array 37 including a plurality of curved lenses having curved surfaces facing the first substrate 31, the second barrier 332 being formed on the curved surfaces.

In one embodiment, the curved lens can be made of a transparent material, and the arrangement can make the light transmittance of the reflective display panel higher. As shown in the figure, the surface of the curved lens close to the first substrate 31 (driving TFT substrate) is a curved surface protruding toward the first substrate 31, for example, the curved surface may be prepared by a nano-imprinting process or a photolithography process. Illustratively, the curved surface may be a portion of a spherical surface (e.g., a sphere or an ellipsoid). Of course, the curved surface of the curved lens may also be in other shapes, and may be set according to design parameters of the reflective display panel, which is not limited in the embodiment of the present invention.

In an alternative embodiment, the material of the second barrier is a thermoplastic material, such as: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS), ABS (acrylonitrile-butadiene-styrene terpolymer), Polyoxymethylene (POM), Polycarbonate (PC), Polyamide (PA), polymethyl methacrylate (PMMA), polysulfone, polyphenylene oxide, chlorinated polyether, and the like.

In this embodiment, by using the property of absorbing the wave and increasing the temperature of the wave-absorbing material and the property of changing the heated shape of the thermoplastic material, in the manufacturing process, the first blocking portion 331 can generate a higher temperature after absorbing the electromagnetic wave, and under the thermal action of the electromagnetic wave and the thermal action of the first blocking portion 331, the second blocking portion 332 can deform and adhere to the first blocking portion 331, so as to form a complete blocking layer 33 to achieve a good blocking performance, and block the area between the first substrate 31 and the second substrate 32 into a plurality of independent opening areas, thereby further enabling sub-pixels formed in the opening areas to be independent from each other, ensuring that black ink ions in the sub-pixels cannot shuttle to different sub-pixels, and improving the display uniformity.

In a specific example, the border area between the first substrate 31 and the second substrate 32 of the present embodiment is further provided with a sealant 38 for encapsulating the sub-pixels 34, so as to form a package-fixed reflective display panel.

In another embodiment of the present invention, corresponding to the reflective display panel, a method for manufacturing a reflective display panel is provided, as shown in fig. 4, the method includes:

s1, forming a first barrier section 331 of the barrier layer 33 on the first substrate 31;

s4, forming a second barrier 332 of the barrier layer 33 corresponding to the second barrier 332 on the second substrate 32;

s5, forming an ink material layer of the sub-pixels 34 on the first substrate 31 or the second substrate 32;

s6, packing the first substrate 31 and the second substrate 32 to form a barrier layer 33 including a plurality of opening regions and a sub-pixel 34 located in each of the opening regions, wherein a surface of the first barrier portion 331 facing the second substrate 32 and a surface of the second barrier portion 332 facing the first substrate 31 are attached to each other so that adjacent sub-pixels 34 are independently disposed.

The reflective display panel formed by the method of the embodiment is formed on the first blocking part and the second blocking part respectively through two process steps, and the first blocking part and the second blocking part are used for forming the blocking layer together, so that the problem of different heights of the blocking layer caused by process errors is effectively solved, the formed opening area is in a closed state, the sub-pixels formed in each opening area are further in a mutually independent state, black ink particles in the sub-pixels are effectively prevented from moving among different sub-pixels, the display uniformity of the reflective display panel is improved, and the display effect is improved.

The manufacturing process of the method will now be described by taking the manufacturing of the reflective display panel shown in fig. 3 as an example. The "patterning process" described in the embodiments of the present invention includes processes of depositing a film, coating a photoresist, mask exposure, development, etching, and stripping a photoresist, and is a well-known and well-established manufacturing process. The deposition may be performed by known processes such as sputtering, evaporation, chemical vapor deposition, etc., the coating may be performed by known coating processes, and the etching may be performed by known methods, which are not limited herein. In the description of the embodiments of the present disclosure, a "thin film" refers to a layer of a material that is deposited or coated on a substrate. The "thin film" may also be referred to as a "layer" if it does not require a patterning process or a photolithography process throughout the fabrication process. If a patterning process or a photolithography process is required for the "thin film" in the entire manufacturing process, the "thin film" is referred to as a "thin film" before the patterning process, and the "layer" after the patterning process. The "layer" after the patterning process or the photolithography process includes at least one "pattern".

S1, forming the first barrier section 331 of the barrier layer 33 on the first substrate 31.

Illustratively, the display panel according to the embodiment of the present invention further includes an insulating layer 35 for insulation, as shown in fig. 5a, the insulating layer 35 is formed on the first substrate 31 (driving TFT substrate) before the first barrier 331 is formed, and in a specific example, the material of the insulating layer may be silicon oxide or silicon nitride.

In an alternative embodiment, the step S1 "forming the first barrier portion of the barrier layer on the first substrate" includes:

s11, forming a first barrier material layer on the first substrate 31.

In an alternative embodiment, the material of the first barrier includes one or more of carbon nanotubes, ferrite, or nano-absorber, and in this embodiment, the first barrier material is formed by mixing ferrite and resin glue, and a first barrier material layer is formed on the insulating layer 35 of the first substrate 31 shown in fig. 5 a.

S12, patterning the first barrier material layer to form the first barrier 331.

Illustratively, the first barrier material layer is patterned by an exposure etching process, as shown in fig. 5b, to form the first barrier 331 of the present embodiment. The first blocking portion 331 has a function of blocking the flow of the black ink particles in the sub-pixel 34, and the second blocking portion formed of the above material can also have a function of absorbing electromagnetic waves, thereby improving the service life of the reflective display panel.

In an optional embodiment, the second substrate is a color filter substrate, and before the second barrier 332 of the barrier layer 33 corresponding to the second barrier 332 is formed on the second substrate 32, the method further includes:

s2, forming a filter layer 36 on a surface of the second substrate 32 facing the first substrate 31. As shown in fig. 3, the filter layer 36 includes a light-shielding layer 361 provided corresponding to the barrier layer 33 and a color filter 362 provided corresponding to the sub-pixel 34, and a projection of the light-shielding layer 361 onto the first substrate 31 covers a projection of the first barrier section 331 onto the first substrate 31 and covers a projection of the second barrier section 332 onto the first substrate 31.

Therefore, for example, the step S2 "forming the filter layer on the surface of the second substrate facing the first substrate" may further include:

s21, a patterned light-shielding layer 361 is formed on the second substrate 32.

In order to prevent the first blocking portion 331 from affecting the light emitting effect, in this embodiment, the light shielding layer 361 and the first blocking portion 331 are correspondingly disposed, and the projection of the light shielding layer 361 on the second substrate 32 covers the projection of the first blocking portion 331 on the first substrate 31, so as to ensure that the light shielding layer 361 can not only block crosstalk between different color lights, but also block the first blocking portion 331, thereby ensuring the light emitting effect and ensuring the display performance of the reflective display panel.

S22, a color filter 362 is formed between the adjacent light-shielding layers 361.

Illustratively, the color filters 362 include a red filter, a blue filter, and a green filter. Illustratively, the resulting layer structure is shown in FIG. 5 c.

In an alternative embodiment, before forming the second barrier 332 of the barrier layer 33 corresponding to the second barrier 332 on the second substrate 32, the method further includes:

s3, forming a lens array 37 on a surface of the filter layer 36 facing the first substrate 31.

As shown in fig. 5d, the lens array 37 includes a plurality of curved lenses, the curved surfaces of which face the first substrate 31, and the second barrier portions are formed on the curved surfaces.

In one embodiment, the curved lens can be made of a transparent material, and the arrangement can make the light transmittance of the reflective display panel higher. As shown in fig. 3, the surface of the curved lens close to the first substrate 31 (driving TFT substrate) is a curved surface protruding toward the first substrate 31, and for example, the curved surface may be prepared by a nano-imprinting process or a photolithography process. Illustratively, the curved surface may be a portion of a spherical surface (e.g., a sphere or an ellipsoid). Of course, the curved surface of the curved lens may also be in other shapes, and may be set according to design parameters of the reflective display panel, which is not limited in the embodiment of the present invention.

S4, forming a second barrier 332 of the barrier layer 33 corresponding to the second barrier 332 on the second substrate 32.

As shown in fig. 5e, the second barrier 332 of the present embodiment is formed on the curved surface of the curved lens by using a thermoplastic material, for example, the height of the second barrier may be 3 to 10 μm, and the film formation uniformity of the second barrier is ± 5% due to process fluctuation, for example, the height difference of the different second barriers is 0.25 μm when the height of the second barrier is 5 μm, and the black ink particles in the sub-pixel 34 are in the nanometer level, so under the process fluctuation, the black ink particles can still flow from the gap formed between the second barrier 332 and the first substrate 31 to other sub-pixels 34, which is also a main reason for the poor display uniformity of the reflective display panel.

In an alternative embodiment, the material of the second barrier is a thermoplastic material, such as: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), Polystyrene (PS), ABS (acrylonitrile-butadiene-styrene terpolymer), Polyoxymethylene (POM), Polycarbonate (PC), Polyamide (PA), polymethyl methacrylate (PMMA), polysulfone, polyphenylene oxide, chlorinated polyether, etc., therefore, in the present embodiment, by using the characteristic of thermoplastic material that the thermal shape changes, in the manufacturing process, the second blocking portion 332 can deform and adhere to the first blocking portion 331, so as to form a complete blocking layer 33 to achieve good blocking performance, and block the region between the first substrate 31 and the second substrate 32 into a plurality of independent opening regions, further making the sub-pixels 34 formed in the opening regions independent from each other, ensuring that the black ink ions in the sub-pixels 34 do not shuttle to different sub-pixels 34, the effect of improving the display uniformity is achieved.

Furthermore, in order to prevent the second blocking portion from affecting the light emitting effect, in this embodiment, the light shielding layer is disposed corresponding to the second blocking portion, and the projection of the light shielding layer on the second substrate covers the projection of the second blocking portion on the first substrate, so as to ensure that the light shielding layer can not only block the crosstalk between different color lights, but also block the first blocking portion, thereby ensuring the light emitting effect and ensuring the display performance of the reflective display panel.

S5, forming an ink material layer of the sub-pixel 34 on the first substrate 31 or the second substrate 32.

Illustratively, the ink material layer of the sub-pixels 34 is formed on the first substrate 31.

S6, packing the first substrate 31 and the second substrate 32 to form a barrier layer 33 including a plurality of opening regions and a sub-pixel 34 in each of the opening regions.

In an alternative embodiment, the step S6 of pair-clamping the first substrate and the second substrate to form a barrier layer including a plurality of opening regions and a sub-pixel located in each of the opening regions further includes:

s61, forming a sealant 38 on the second substrate 32 or the first substrate 31.

In step S5, the ink material layer of the sub-pixels 34 is formed on the first substrate 31, and in this embodiment, the frame sealing glue 38 is formed on the boundary region of the other substrate, i.e. the second substrate 32, so as to perform the subsequent box aligning process.

In another specific example, in step S5, an ink material layer of the sub-pixel 34 may be formed on the second substrate 32, and correspondingly, in step S61, the sealant 38 is also formed on the first substrate 31, which is not limited in the embodiment of the invention.

S62, and mating the first substrate 31 and the second substrate 32.

On the basis of the foregoing steps, the first substrate 31 formed with the ink material layer and the second substrate 32 formed with the frame sealing glue 38 are paired to form the structure diagram shown in fig. 5 e.

As shown in fig. 4 and 5e, due to the process fluctuation error, the heights of the second barriers 332 are different, so that the black ink particles in the sub-pixels 34 can shuttle to different sub-pixels 34 from the gap between the second barrier 332 and the first barrier 331, thereby causing the problem of poor display uniformity in the prior art.

S63, heating the first substrate 31 and the second substrate 32 after the pair of cassettes, wherein the barrier layer 33 is formed by bonding the surface of the first barrier portion 331 facing the second substrate 32 and the surface of the second barrier portion 332 facing the first substrate 31, and the sub-pixels 34 are formed in each of the plurality of opening regions of the barrier layer 33.

In this step, the structure of the cell shown in fig. 5e formed behind the cell is heated, illustratively, with microwaves (e.g., 2400-, in the process, the temperature of the first barrier 331 is increased, the second barrier 332 is made of thermoplastic material, and when the higher second barrier 332 is in contact with the surface of the first barrier 331, the end of the second barrier 332 toward the first substrate 31 becomes soft (as shown in fig. 5e at the dashed-line frame position of the second barrier 332), and therefore, at atmospheric pressure, the end of the second stopper 332 having a higher height is deformed such that the entire height of the second stopper 332 is changed, that is, the second barrier portions 332 with a higher height are softened until all the surfaces of the second barrier portions 332 facing the first substrate 31 and the surfaces of the first barrier portions 331 facing the second substrate 32 are closely attached to form the barrier layer 33 of the present embodiment.

As shown in fig. 3, the reflective display panel of this embodiment is finally formed, in this structure, all the second blocking portions 332 have the same height and are closely attached to the corresponding first blocking portions 331, the first blocking portions 331 and the second blocking portions 332 together form a blocking layer 33 having a plurality of opening regions, and the blocking layer 33 can completely block the sub-pixels disposed in each opening region, so that the black ink particles in the sub-pixels do not flow.

It should be noted that the present invention does not limit the display panel according to the embodiment of the present invention to the only way of manufacturing the display panel according to the above-mentioned embodiment, that is, the display panel shown in fig. 3 is manufactured by other methods, and the manufacturing method is also within the scope of the present invention.

Since the display panel manufacturing method provided by the embodiment of the present invention corresponds to the display panels provided by the above several embodiments, the foregoing embodiments are also applicable to the display panel manufacturing method provided by the embodiment, and detailed description is omitted in this embodiment. Those skilled in the art will appreciate that the foregoing embodiments and the attendant advantages are also applicable to this embodiment, and therefore, the description of the same parts is omitted.

Another embodiment of the present invention provides a display device, including the display panel according to the above embodiment. For example, the display device may be any product or component requiring a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, a vehicle-mounted center console, and the like, which is not limited in this respect.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations and modifications can be made on the basis of the above description, and all embodiments cannot be exhaustive, and all obvious variations and modifications belonging to the technical scheme of the present invention are within the protection scope of the present invention.

Claims

1. A reflective display panel, comprising:

wherein the sub-pixels comprise an ink material;

the barrier layer includes:

a first barrier formed on the first substrate; and

2. The display panel according to claim 1, further comprising a filter layer formed on a surface of the second substrate on a side facing the first substrate, the filter layer comprising:

a light shielding layer disposed corresponding to the blocking layer; and

a color filter disposed corresponding to the sub-pixel;

3. The display panel according to claim 2, characterized in that the display panel further comprises: and a lens array formed on a surface of one side of the filter layer facing the first substrate, the lens array including a plurality of curved lenses, curved surfaces of the curved lenses facing the first substrate, the second blocking portion being formed on the curved surfaces.

4. The display panel according to any one of claims 1 to 3,

the material of the first barrier part is thermoplastic material;

the second blocking part is made of wave-absorbing materials;

5. A method for manufacturing a reflective display panel, comprising:

forming a first barrier portion of the barrier layer on the first substrate;

6. The display panel according to claim 5, wherein the forming of the first barrier portion of the barrier layer on the first substrate comprises:

forming a first barrier material layer on the first substrate, wherein the first barrier part is made of a wave-absorbing material;

patterning the first barrier material layer to form the first barrier.

7. The display panel according to claim 5, wherein the material of the second barrier is a thermoplastic material.

8. The display panel according to claim 6, further comprising a filter layer provided on a surface of the second substrate on a side facing the first substrate;

9. The display panel according to claim 6, further comprising a lens array provided on a surface of the filter layer on a side facing the first substrate;

10. The display panel of claim 5, wherein the pair of cells the first substrate and the second substrate to form a barrier layer including a plurality of open regions and the sub-pixel in each of the open regions further comprises:

forming frame sealing glue on the second substrate or the first substrate;

aligning the first substrate and the second substrate;

11. A display device comprising the display panel according to any one of claims 1 to 4.