CN115903328A - Display panel, manufacturing method and display device - Google Patents
Display panel, manufacturing method and display device Download PDFInfo
- Publication number
- CN115903328A CN115903328A CN202211542871.7A CN202211542871A CN115903328A CN 115903328 A CN115903328 A CN 115903328A CN 202211542871 A CN202211542871 A CN 202211542871A CN 115903328 A CN115903328 A CN 115903328A
- Authority
- CN
- China
- Prior art keywords
- electrode layer
- layer
- substrate
- display panel
- optical structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
本申请公开一种显示面板、制备方法及显示装置，涉及显示技术领域，能够在反射外界光线的过程中降低光的吸收率，以提高显示面板的反射效率，提高显示效果。显示面板，包括：第一基板，包括第一衬底层、第一电极层和光学结构，所述第一电极层设置于所述第一衬底层与所述光学结构之间；第二基板，与所述第一基板相对设置，所述第二基板包括第二电极层；所述第一电极层与所述第二电极层之间设置有溶剂，所述溶剂混合有吸光粒子，所述吸光粒子用于在所述第一电极层和所述第二电极层形成的电场中移动，以设置于所述光学结构的表面或与所述光学结构的表面分离。
The application discloses a display panel, a preparation method and a display device, which relate to the field of display technology and can reduce the light absorption rate during the process of reflecting external light, so as to improve the reflection efficiency of the display panel and improve the display effect. The display panel includes: a first substrate, including a first substrate layer, a first electrode layer, and an optical structure, and the first electrode layer is disposed between the first substrate layer and the optical structure; a second substrate, and The first substrate is arranged oppositely, the second substrate includes a second electrode layer; a solvent is arranged between the first electrode layer and the second electrode layer, the solvent is mixed with light-absorbing particles, and the light-absorbing particles for moving in the electric field formed by the first electrode layer and the second electrode layer, so as to be arranged on the surface of the optical structure or separated from the surface of the optical structure.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel, a preparation method and a display device.
Background
Currently, clear-Ink (color electronic paper) is an electrophoretic display, and is also a reflective display device. The picture display can be realized by reflecting the external natural light by utilizing the external natural light, and the color display can be realized.
However, the conventional Clear-Ink display panel has high absorptivity and low light reflection efficiency in the reflection process of external natural light.
Disclosure of Invention
The embodiment of the application provides a display panel, a preparation method and a display device, which can reduce the light absorption rate in the process of reflecting external light so as to improve the reflection efficiency of the display panel and improve the display effect.
In a first aspect of embodiments of the present application, there is provided a display panel, including:
the first substrate comprises a first substrate layer, a first electrode layer and an optical structure, wherein the first electrode layer is arranged between the first substrate layer and the optical structure;
a second substrate disposed opposite to the first substrate, the second substrate including a second electrode layer;
a solvent is arranged between the first electrode layer and the second electrode layer, the solvent is mixed with light absorbing particles, and the light absorbing particles move in an electric field formed by the first electrode layer and the second electrode layer so as to be arranged on the surface of the optical structure or separated from the surface of the optical structure.
In some embodiments, the first electrode layer comprises a transparent electrode, and the first electrode layer has an average light absorption rate of less than 6.5% in the visible light band.
In some embodiments, the first electrode layer comprises indium tin oxide in a polycrystalline structure or indium tin oxide in an amorphous structure.
In some embodiments, the first electrode layer is parallel to the first substrate layer.
In some embodiments, the shape of the surface of the first electrode layer facing away from the first substrate layer matches the shape of the surface of the optical structure facing away from the first substrate layer, and the side of the first electrode layer facing away from the first substrate layer is in contact with the side of the optical structure facing away from the first substrate layer.
In some embodiments, the display panel further includes:
the optical adhesive layer is arranged between the first substrate layer and the first electrode layer;
the shape of the surface of one side, deviating from the first substrate layer, of the optical adhesive layer is matched with the shape of the surface of one side, deviating from the first substrate layer, of the optical structure.
In some embodiments, the first substrate includes a color filter layer including at least two color filter films;
the color filter layer is arranged between the first electrode layer and the first substrate layer.
In some embodiments, the display panel further includes:
the pixel retaining wall is arranged between the first substrate and the second electrode;
the pixel retaining wall is provided with a plurality of hollow-out areas, the hollow-out areas are used for forming sub-pixel areas, and the orthographic projection of the color filter film on the first substrate is arranged on the orthographic projection of the corresponding sub-pixel areas on the first substrate;
the second electrode layer comprises a plurality of pixel electrodes, and the pixel electrodes are positioned in the sub-pixel areas;
the second substrate includes a pixel circuit electrically connected to the pixel electrode.
In some embodiments, the display panel further includes:
the dielectric layer is arranged on one side, away from the first substrate layer, of the optical structure;
the refractive index of the dielectric layer is equal to the refractive index of the optical structure within a tolerance of ± 0.2.
In some embodiments, the optical structure comprises a plurality of convex lenses, the convex surfaces of the lenses facing away from the first substrate layer.
In some embodiments, the light absorbing particles are charged particles.
In some embodiments, the light absorbing particles comprise a light absorbing material and a polymeric material that encapsulates the light absorbing material.
In a second aspect of the embodiments of the present application, a method for manufacturing a display panel is provided, including:
sequentially arranging a first electrode layer and an optical structure on one side of a first substrate layer to obtain a first substrate, wherein the first electrode layer is arranged between the first substrate layer and the optical structure;
providing a second substrate, wherein the second substrate comprises a second electrode layer;
and oppositely arranging the first substrate and the second substrate, wherein a solvent is arranged between the first electrode layer and the second electrode layer, the solvent is mixed with light absorbing particles, and the light absorbing particles are used for moving in an electric field formed by the first electrode layer and the second electrode layer so as to be arranged on the surface of the optical structure or separated from the surface of the optical structure.
In some embodiments, the disposing the first electrode layer and the optical structure in this order on one side of the first substrate layer to obtain a first substrate includes:
arranging the first electrode layer on one side of the first substrate layer;
performing crystallization treatment on the first electrode layer to form a polycrystalline material structure on the first electrode layer;
and arranging a plurality of lenses on one side of the first electrode layer, which is far away from the first substrate layer, by using an imprinting process so as to form the optical structure on one side of the first electrode layer, which is far away from the first substrate layer, and thus obtaining the first substrate.
In some embodiments, the crystallization process comprises a high temperature annealing crystallization or a low temperature crystallization process.
In some embodiments, before disposing the first electrode layer on one side of the first substrate layer, further comprising:
arranging an optical adhesive layer on one side of the first substrate layer, wherein the shape of the surface of the optical adhesive layer on one side deviating from the first substrate layer is matched with the shape of the surface of the optical structure on one side deviating from the first substrate layer;
the disposing the first electrode layer on one side of the first substrate layer includes:
arranging the first electrode layer on one side, far away from the first substrate layer, of the optical adhesive layer, wherein the shape of the surface, far away from the first substrate layer, of the first electrode layer is matched with the shape of the surface, far away from the first substrate layer, of the optical structure;
the crystallizing the first electrode layer includes:
and carrying out low-temperature crystallization treatment on the first electrode layer.
In a third aspect of the embodiments of the present application, there is provided a display device including:
the display panel according to the first aspect.
The display panel provided by the embodiment of the application is characterized in that the first electrode layer is arranged between the first substrate layer and the lens, namely the first electrode layer is prepared firstly, and the lens is prepared later. In the reflection process of the external environment light in the lens, the reflection cross section is reduced, the light loss from the reflection to the outside of the lens structure can be reduced, the light emergent quantity of the reflected light can be improved, the light emergent efficiency of the display panel is further improved, and the display effect is improved. In addition, due to the change of the position of the first electrode layer, the contact interface between the first electrode layer and the lens drawing disappears, and the absorption times of light are reduced by 2 times in the total reflection process of external ambient light, so that the light output quantity of the display panel can be further improved, and the display effect is improved.
Drawings
Fig. 1 is a schematic partial structure diagram of a display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic partial structure diagram of another display panel provided in an embodiment of the present application;
fig. 3 is a schematic diagram of a reflection light path of a display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a reflection light path of another display panel provided in this embodiment of the present application;
fig. 5 is a graph illustrating an absorption rate of light by a first electrode layer of an amorphous material structure according to an embodiment of the present disclosure;
fig. 6 is a graph illustrating an absorption rate of light by a first electrode layer of a polycrystalline material structure according to an embodiment of the present disclosure;
fig. 7 is a schematic partial structure diagram of another display panel according to an embodiment of the present disclosure;
fig. 8 is a schematic partial structure diagram of another display panel according to an embodiment of the present disclosure;
fig. 9 is a schematic flowchart of a method for manufacturing a display panel according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.
In this document, 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, the use of the phrase "comprising a. -. Said" to define an element does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes the case of two or more.
Currently, clear-Ink is an electrophoretic display, and is also a reflective display device. The picture display can be realized by reflecting the external natural light by utilizing the external natural light, and the color display can be realized. However, the conventional Clear-Ink display panel has high absorptivity and low light reflection efficiency in the reflection process of the external natural light.
In view of this, embodiments of the present disclosure provide a display panel, a manufacturing method thereof, and a display device, which can reduce light absorption rate in the process of reflecting external light, so as to improve reflection efficiency of the display panel and improve display effect.
In a first aspect of an embodiment of the present application, a display panel is provided, and fig. 1 is a schematic partial structure diagram of the display panel provided in the embodiment of the present application. As shown in fig. 1, a display panel provided in an embodiment of the present application includes: a first substrate 100 and a second substrate 200 disposed opposite to each other. The first substrate 100 comprises a first substrate layer 110, a first electrode layer 120 and an optical structure 300, the first electrode layer 120 being arranged between the first substrate layer 110 and the optical structure 300. Optical structure 300 comprises a plurality of lenses 310, lenses 310 comprising convex lenses, the convex surfaces of the lenses facing away from first substrate layer 110. The second substrate 200 comprises a second substrate layer 210 and a second electrode layer 220, wherein the second electrode layer 220 is disposed on a side of the second substrate layer 210 close to the first substrate 100. A solvent 400 is disposed between the first electrode layer 120 and the second electrode layer 220, the solvent 400 is mixed with light absorbing particles 401, the light absorbing particles 401 are charged particles, and the light absorbing particles 401 are configured to move in an electric field formed by the first electrode layer 120 and the second electrode layer 220, so as to be disposed on the surface of the optical structure 300 or separated from the surface of the optical structure 300. The light-absorbing particles 401 may be referred to as electrophoretic particles and may be charged after being treated with a chemical solvent after preparation of the light-absorbing particles.
For example, as shown in fig. 1, the first electrode layer 120 and the second electrode layer 220 may be controlled to respectively input electric signals having voltage differences, the voltage difference between the first electrode layer 120 and the second electrode layer 220 may form an electric field, the light absorbing particles 401 are charged particles, and under the action of the electric field, the charged particles may move based on the direction of the electric field, and under the action of the electric field, the light absorbing particles 401 shown in fig. 1 are separated from the surface of the lens 310.
For example, fig. 2 is a schematic partial structure diagram of another display panel provided in an embodiment of the present application. As shown in fig. 2, under the action of the electric field formed by the first electrode layer 120 and the second electrode layer 220, the light absorbing particles 401 are attached to the surface of the lens 310. The light absorbing particles 401 may be black particles, and the black particles may absorb light.
For example, referring to fig. 1, the first electrode layer 120 is connected to a 0 potential, the second electrode layer 220 is connected to a +5V voltage, the electric field is directed from the first electrode layer 120 to the second electrode layer 220, the light absorbing particles 401 are positively charged, the light absorbing particles 401 move close to the second electrode layer 220 under the action of the electric field, the light absorbing particles 401 and the lens 310 are in a separated state, the external ambient light L of the display panel can be totally reflected on the convex surface of the lens, and the reflected light can be used for image display, so as to realize the bright state of the display panel.
For example, referring to fig. 2, the first electrode layer 120 is connected to a voltage of +5V, the second electrode layer 220 is connected to a potential of 0, the direction of the electric field is directed from the second electrode layer 220 to the first electrode layer 120, the light absorbing particles 401 have positive charges, under the action of the electric field, the light absorbing particles 401 move close to the first electrode layer 120, the light absorbing particles 401 are disposed on the surface of the lens 310, and since the light absorbing particles 401 are black and have a light absorbing property, the ambient light L of the display panel is absorbed by the light absorbing particles 401, and the display panel is in a dark state.
It should be noted that fig. 3 is a schematic diagram of a reflection light path of a display panel according to an embodiment of the present application. As shown in fig. 3, the first electrode layer 120 is disposed on the convex surface of the lens 310, and the external ambient light L passes through the first substrate layer 110, is totally reflected twice in the lens 310, and then passes through the first substrate layer 110 for image display. The incident light of the external environment L sequentially passes through the first interface 301 and the second interface 302 of the first substrate layer, and the third interface 303 contacting with the first electrode layer 120 through the lens 310, and then undergoes a first total reflection at the fourth interface 304 formed on the outer surface of the first electrode layer 120, and a second total reflection at the fifth interface 305 formed on the outer surface of the first electrode layer 120, and the reflected light ray passes through the sixth interface 306 contacting with the lens 310 through the first electrode layer 120, and then sequentially passes through the seventh interface 307 and the eighth interface 308 again to exit the display panel. Referring to fig. 3, the main influence of the first electrode layer 120 on light is that the interfaces are the third interface 303, the fourth interface 304, the fifth interface 305, and the sixth interface 306, and light absorption occurs 4 times in the process of total reflection, and mainly the light absorption of the first electrode layer 120 may lose light intensity, affect the image brightness of the display panel, and further affect the display effect. In addition, the reflected light of the third interface 303 and the fifth interface 305 has little influence on the intensity of the emitted light, and the reflected light of the fourth interface 304 and the sixth interface 306 is emitted out of the first electrode layer, resulting in light loss, so that the influence of the light on the outer surface of the lens 310, which is provided by the first electrode layer 120, is mainly the reflected light of the fourth interface 304 and the sixth interface 306 and the 4-time absorption of the light by the first electrode layer 120.
For example, table 1 shows that the thicknesses of the first electrode layer 120 are different according to the reflectivity data of the display substrate with and without the first electrode layer, and the reflectivity is obtained relative to the standard sheet. As can be seen from table 1, the provision of the first electrode layer 120 reduces the reflectivity of the display panel, and the thicker the thickness of the first electrode layer 120 is, the more the reflectivity is reduced.
TABLE 1
In view of the above problem, fig. 4 is a schematic diagram of a reflection light path of another display panel provided in this embodiment of the present application. As shown in fig. 4, the first electrode layer 120 is disposed between the first substrate layer 110 and the lens 310, that is, the first electrode layer 120 is prepared first, and the lens 310 is prepared later. In the process of reflecting the external environment light L in the lens 310, because the external environment light L disappears from the third interface 303 to the sixth interface 306, and the external environment light L passes through the first interface 301, the second interface 302, the seventh interface 307, and the eighth interface 308, the light reflection of the fourth interface 304 and the sixth interface 306 does not exist, and the reflected light is not lost, and the light reflection loss light intensity of the fourth interface 304 and the sixth interface 306 is calculated to be about 1.9% theoretically, so that the light intensity loss can be reduced, the light output amount of the reflected light can be improved, the light output efficiency of the display panel can be further improved, and the display effect can be improved. Due to the change of the position of the first electrode layer, the contact interface of the first electrode layer and the lens drawing disappears. By adding the ninth interface 309 and the tenth interface 30A, the influence of light is mainly the reflected light of the tenth interface 30A and the 2 nd absorption of light by the first electrode layer 120. Therefore, the number of times of light absorption is reduced by 2 times, and the number of times of reflected light interface is reduced by 1 time, thereby improving the light output of the display panel and improving the display effect.
It should be noted that the first electrode layer 120 needs to have a good light transmittance, and a transparent conductive material, such as indium tin oxide, may be used, and the embodiment of the present invention is not limited in particular.
In some embodiments, the first electrode layer 120 includes an amorphous material structure, and the conductive material is normally formed into a film, i.e., an amorphous material structure. Such as indium tin oxide in an amorphous structure.
In some embodiments, the first electrode layer 120 comprises a polycrystalline material structure, such as indium tin oxide in a polycrystalline structure. Illustratively, the polycrystalline material structure of the first electrode layer 120 is obtained by a high temperature annealing process or a low temperature crystallization process. Both the high temperature annealing process and the low temperature crystallization process can convert an amorphous material structure into a polycrystalline material structure. The low-temperature polysilicon process is a low-temperature crystallization process, generally, crystallization is performed by short-time irradiation of laser, so that low-temperature crystallization can be realized, and other materials below the first electrode layer 120 are not damaged.
Exemplarily, fig. 5 is a graph illustrating an absorbance of light by the first electrode layer of an amorphous material structure according to an embodiment of the present application. As shown in fig. 5, the abscissa is the wavelength of the absorbed light, and the ordinate is the intensity of the light, and fig. 5 corresponds to a schematic curve of a-ITO (indium tin oxide in amorphous material structure) with respect to the absorbance, and different curves correspond to different thicknesses.
Table 2 shows that the thickness of the different first electrode layers corresponds to the data of decreasing the reflectivity of the display panel in which the first electrode layer is disposed between the first substrate layer and the lens, and compared with table 1, the data of decreasing the reflectivity of the display panel in which the first electrode layer is disposed between the first substrate layer and the lens is smaller than the data of decreasing the reflectivity of the display panel in which the first electrode layer is disposed on the surface of the lens, and then the first electrode layer is disposed between the first substrate layer and the lens, so that the influence of the reflectivity on the display panel can be effectively reduced, and compared with the prior art, the effect of increasing the reflectivity of the display panel is achieved. The material of the first electrode layer corresponding to table 2 is an amorphous material structure.
TABLE 2
Exemplarily, fig. 6 is a graph illustrating an absorbance of light for a first electrode layer of a polycrystalline material structure provided in an embodiment of the present application. As shown in fig. 6, the abscissa is the wavelength of the absorbed light in nm, and the ordinate is the intensity of the light, fig. 6 corresponds to a schematic curve of P-ITO (indium tin oxide in polycrystalline material structure) with respect to the light absorption rate, and different curves correspond to different thicknesses.
Table 3 shows that the thickness of the first electrode layer is different, corresponding to the data of the reflectivity drop of the display panel in which the first electrode layer is disposed between the first substrate layer and the lens, and the material of the first electrode layer corresponding to table 3 is a polycrystalline material structure. Compared with the table 2, the influence of the P-ITO on the reflectivity of the display panel is greatly smaller than the influence of the a-ITO on the reflectivity of the display lower plate, and the first electrode layer adopts a polycrystalline material structure, so that the effect of improving the reflectivity of the display panel is achieved.
TABLE 3
By disposing the first electrode layer 120 between the first substrate layer 110 and the lens 310, the reflectivity of the display panel can be increased by 12%, 18%, 25%, 31%,12%, respectively
ITO of thickness, 18% corresponds>
ITO of thickness, corresponding 25%>
ITO of thickness, 31% corresponds>
Thickness of ITO.
In some embodiments, the first electrode layer has an average light absorption rate of less than 6.5% in the visible light band.
For illustrative purposes, table 4 shows the average absorptance of a-ITO and P-ITO at different film thicknesses. In connection with FIG. 6, of P-ITO
Has a maximum light absorption of less than 6.5%. The average absorbance is an average of the absorptances of the first electrode layers having the same thickness in the visible light band. />
TABLE 4
In some embodiments, referring to fig. 1 and 2, first electrode layer 120 is parallel to first substrate layer 110. By disposing first electrode layer 120 between first substrate layer 110 and lens 310, the electrical resistance may also be reduced. The first electrode layer 120 is disposed on the convex surface of the lens 310, and has a relatively high resistance greater than 10000 ohms because the first electrode layer 120 on the hemispherical lens is cured at 150 ℃ when being manufactured by a sealing structure, and the lens 310 and the first electrode are disposed on the convex surface of the lens 310The difference in the expansion coefficient of the electrode layer 120 causes the first electrode layer 120 at the position where the lens 310 is closely attached to break, and the resistance increases. Deposition is required if one wants to reduce the resistance
The above first electrode layer 120, but this further reduces the reflectivity. The first electrode layer 120 is disposed between the first substrate layer 110 and the lens 310, i.e., the preparation process of the first electrode layer 120 is prior to the preparation process of the lens 310, the deposition interface of the first electrode layer 120 is flat, and can be annealed at high temperature and/or in a manner of being based on the thickness of the substrate>
The ITO resistance of the resistor can reach below 200 ohms, and power consumption can be reduced.
In some embodiments, the shape of the surface of the side of first electrode layer 120 facing away from first substrate layer 110 matches the shape of the surface of the side of optical structure 300 facing away from first substrate layer 110, and the side of first electrode layer 120 facing away from first substrate layer 110 is in contact with the side of optical structure 300 facing away from first substrate layer 110. The shape of the first electrode layer 120 matches the shape of the optical structure 300, which may enable the first electrode layer 120 to better drive the movement of the light absorbing particles 401.
In some embodiments, fig. 7 is a schematic partial structure diagram of another display panel provided in an embodiment of the present application. As shown in fig. 7, the first substrate 100 further includes an optical adhesive layer 130, and the optical adhesive layer 130 is disposed between the first substrate layer 110 and the first electrode layer 120; the shape of the surface of optical glue layer 130 facing away from first substrate layer 110 matches the shape of the surface of optical structure 300 facing away from first substrate layer 110. The shape of the optical adhesive layer 130 matches the shape of the optical structure 300, so that the shape of the first electrode layer 120 disposed on the optical adhesive layer 130 matches the shape of the optical structure 300. Since the first electrode layer 120 is thin and difficult to form a shape by itself, a shape corresponding to the shape of the optical adhesive layer 130 needs to be formed. In the case of disposing the optical adhesive layer 130, the first electrode layer 120 may be crystallized by a low temperature crystallization process, so as to avoid high temperature damage to the optical adhesive layer 130.
In some embodiments, the first substrate includes a color filter layer including at least two color filter films; the color filter layer is arranged between the first electrode layer and the first substrate layer. The display panel further includes: the pixel retaining wall is arranged between the first substrate and the second electrode; the pixel retaining wall is provided with a plurality of hollow-out areas, the hollow-out areas are used for forming sub-pixel areas, and the orthographic projection of the color filter film on the first substrate is arranged on the orthographic projection of the corresponding sub-pixel areas on the first substrate; the sub-pixel area is provided with a pixel electrode which is arranged on the second electrode layer; the second substrate includes a pixel circuit electrically connected to the pixel electrode.
In some embodiments, the first electrode layer may be disposed between the color filter layer and the first substrate layer.
For example, fig. 8 is a schematic partial structure diagram of another display panel provided in an embodiment of the present application. As shown in fig. 8, the color filter layer 140 is disposed between the first electrode layer 120 and the first substrate layer 110. The color filter layer 140 includes a red filter R, a green filter G, a blue filter B, and a light shielding structure BM disposed between adjacent color filters. The color filter layer 140 is arranged to realize display of a color picture, and specifically, ambient light passes through the color filter to obtain light with a color corresponding to a wavelength, for example, light with a red light wavelength band passes through the red filter to be reflected and emitted as red light, which can be used for red display. The other color filters work similarly. The hollow area surrounded by the pixel retaining walls 500 may be used to contain the solvent 400 and the light absorbing particles 401, the second electrode layer 220 corresponding to the hollow area surrounded by the pixel retaining walls 500 may be provided with pixel electrodes, the pixel electrodes may realize independent driving of a local area, an electric field of the local area is realized, and the hollow area surrounded by the pixel retaining walls 500 may be used as a sub-pixel, so as to realize a resolution of the display panel. The second substrate 200 further includes a driving layer 230, the driving layer 230 is provided with a pixel circuit, the pixel circuit is electrically connected to the pixel electrode, and the pixel circuit is used for driving the pixel electrode to apply an electrical signal to the pixel electrode.
In some embodiments, the display panel may further comprise a dielectric layer, which may be disposed on a side of the optical structure 300 facing away from the first substrate layer 110; the refractive index of the dielectric layer may be equal to the refractive index of the optical structure 300 within process tolerances without affecting the optical performance of the lens. The process error range mainly considers the control precision of the material preparation on the refractive index and the process precision of the film preparation. Within the optical performance specification of the display panel, the refractive index of the dielectric layer is smaller than that of the lens, which can help the external ambient light to be totally reflected on the interface between the lens 310 and the dielectric layer. The refractive index of the dielectric layer is larger than that of the lens, so that the brightness of a dark state can be reduced, and the contrast of the display panel is increased. Illustratively, the dielectric layer may include silicon oxide.
In some embodiments, the light absorbing particles 401 comprise a light absorbing material and a polymeric material, the polymeric material encapsulating the light absorbing material. Illustratively, the light absorbing material may include carbon black, iron oxide, titanium oxide, or copper chromium black, the solvent 400 may be an isoparaffin, and the light absorbing material may primarily function to absorb light, which may be achieved by the color of the material, such as black or other dark colors.
It should be noted that the structural dimensions and proportions shown in fig. 1-8 are merely schematic and are not intended to specifically limit the embodiments of the present application.
In some embodiments, the present application provides a method for manufacturing a display panel, and fig. 9 is a schematic flowchart of the method for manufacturing a display panel provided in the present application. As shown in fig. 9, the method for manufacturing a display panel includes:
s601: and sequentially arranging a first electrode layer and an optical structure on one side of the first substrate layer to obtain a first substrate, wherein the first electrode layer is arranged between the first substrate layer and the optical structure.
Referring to fig. 1, optical structure 300 includes a plurality of lenses 310, lenses 310 including convex lenses with the convex surfaces of the lenses facing away from first substrate layer 110. Illustratively, the optical structure 300 may employ an imprint process to obtain a plurality of lenses.
Illustratively, step S601 may include:
arranging a first electrode layer on one side of the first substrate layer;
and crystallizing the first electrode layer to form a polycrystalline material structure on the first electrode layer.
Illustratively, the crystallization process includes a high temperature annealing crystallization or a low temperature crystallization process. Both the high-temperature annealing process and the low-temperature crystallization process belong to crystallization processes, and can convert an amorphous material structure into a polycrystalline material structure. The low-temperature crystallization process is usually a laser crystallization process, which can realize low-temperature crystallization without damaging other materials under the first electrode layer 120 film.
And arranging a plurality of lenses on one side of the first electrode layer, which is far away from the first substrate layer, by utilizing an imprinting process so as to form an optical structure on one side of the first electrode layer, which is far away from the first substrate layer, and obtaining the first substrate.
For example, before the first electrode layer is disposed on one side of the first substrate layer, the method may further include:
arranging an optical adhesive layer on one side of the first substrate layer, wherein the shape of the surface of the optical adhesive layer on one side departing from the first substrate layer is matched with the shape of the surface of the optical structure on one side departing from the first substrate layer;
providing a first electrode layer on one side of the first substrate layer may comprise:
arranging a first electrode layer on one side, far away from the first substrate layer, of the optical adhesive layer, wherein the shape of the surface, far away from the first substrate layer, of the first electrode layer is matched with the shape of the surface, far away from the first substrate layer, of the optical structure;
the crystallizing the first electrode layer may include:
and carrying out low-temperature crystallization treatment on the first electrode layer.
Referring to fig. 7, an optical adhesive layer 130 is disposed between the first substrate layer 110 and the first electrode layer 120; the shape of the surface of optical glue layer 130 facing away from first substrate layer 110 matches the shape of the surface of optical structure 300 facing away from first substrate layer 110. The shape of the optical adhesive layer 130 matches the shape of the optical structure 300, so that the shape of the first electrode layer 120 disposed on the optical adhesive layer 130 matches the shape of the optical structure 300. Since the first electrode layer 120 is thin and difficult to form a shape by itself, a shape corresponding to the shape of the optical adhesive layer 130 needs to be formed. Under the condition of disposing the optical adhesive layer 130, the first electrode layer 120 may be crystallized by a low-temperature crystallization process of low-temperature polysilicon, so as to avoid high-temperature damage to the optical adhesive layer 130.
S602: a second substrate is provided, wherein the second substrate includes a second electrode layer. The first electrode layer and the second electrode layer may be made of the same conductive material, and the present application is not particularly limited.
S603: the first substrate and the second substrate are arranged oppositely, wherein a solvent is arranged between the first electrode layer and the second electrode layer, the solvent is mixed with light absorbing particles, and the light absorbing particles are used for moving in an electric field formed by the first electrode layer and the second electrode layer so as to be arranged on the surface of the optical structure or separated from the surface of the optical structure.
For example, as shown in fig. 1, the first electrode layer 120 and the second electrode layer 220 may be controlled to respectively input electric signals having voltage differences, the voltage difference between the first electrode layer 120 and the second electrode layer 220 may form an electric field, the light absorbing particles 401 are charged particles, and under the action of the electric field, the charged particles may move based on the direction of the electric field, and under the action of the electric field, the light absorbing particles 401 shown in fig. 1 are separated from the surface of the lens 310.
For example, as shown in fig. 2, under the action of an electric field formed by the first electrode layer 120 and the second electrode layer 220, the light absorbing particles 401 are attached to the surface of the lens 310. The light absorbing particles 401 may be black micro-particles, which may absorb light.
As shown in fig. 4, the first electrode layer 120 is disposed between the first substrate layer 110 and the lens 310, that is, the first electrode layer 120 is prepared first, and the lens 310 is prepared later. In the process of reflecting the external environment light L in the lens 310, because the external environment light L disappears from the third interface 303 to the sixth interface 306, and the external environment light L passes through the first interface 301, the second interface 302, the seventh interface 307, and the eighth interface 308, the light reflection of the fourth interface 304 and the sixth interface 306 does not exist, and the reflected light is not lost, and the light reflection loss light intensity of the fourth interface 304 and the sixth interface 306 is calculated to be about 1.9% theoretically, so that the light intensity loss can be reduced, the light output amount of the reflected light can be improved, the light output efficiency of the display panel can be further improved, and the display effect can be improved. In addition, by adding the ninth interface 309 and the tenth interface 30A, the influence of light is mainly the reflected light of the tenth interface 30A and the 2 nd absorption of light by the first electrode layer 120. Therefore, the number of times of light absorption is reduced by 2 times, and the number of times of reflected light interface is reduced by 1 time, thereby improving the light output of the display panel and improving the display effect.
In a third aspect of the embodiments of the present application, a display device is provided, and fig. 10 is a schematic structural diagram of the display device provided in the embodiments of the present application. As shown in fig. 10, a display device provided in an embodiment of the present application includes:
the display panel 1000 according to the first aspect.
It should be noted that the display device provided in the embodiment of the present application may include a smart phone, a notebook computer, a tablet computer, a television, or other displays, and the embodiment of the present application is not particularly limited.
It should be noted that, in the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present application.
While preferred embodiments of the present specification have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all changes and modifications that fall within the scope of the specification.
It will be apparent to those skilled in the art that various changes and modifications can be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, then such modifications and variations are also intended to be included in the present specification.
Claims (17)
1. A display panel, comprising:
the first substrate comprises a first substrate layer, a first electrode layer and an optical structure, wherein the first electrode layer is arranged between the first substrate layer and the optical structure;
a second substrate disposed opposite to the first substrate, the second substrate including a second electrode layer;
a solvent is arranged between the first electrode layer and the second electrode layer, the solvent is mixed with light absorbing particles, and the light absorbing particles move in an electric field formed by the first electrode layer and the second electrode layer so as to be arranged on the surface of the optical structure or separated from the surface of the optical structure.
2. The display panel according to claim 1,
the first electrode layer comprises a transparent electrode, and the average value of the light absorptivity of the first electrode layer in a visible light waveband is less than 6.5%.
3. The display panel according to claim 1,
the first electrode layer comprises indium tin oxide in a polycrystalline structure or amorphous structure.
4. The display panel according to claim 1 or 2,
the first electrode layer is parallel to the first substrate layer.
5. The display panel according to claim 1 or 2,
the shape of one side surface, deviating from the first substrate layer, of the first electrode layer is matched with the shape of one side surface, deviating from the first substrate layer, of the optical structure, and one side, deviating from the first substrate layer, of the first electrode layer is in contact with one side, deviating from the first substrate layer, of the optical structure.
6. The display panel according to claim 5, further comprising:
the optical adhesive layer is arranged between the first substrate layer and the first electrode layer;
the shape of one side surface of the optical adhesive layer, which deviates from the first substrate layer, is matched with the shape of one side surface of the optical structure, which deviates from the first substrate layer.
7. The display panel according to claim 1,
the first substrate comprises a color filter layer, and the color filter layer comprises at least two color filter films;
the color filter layer is arranged between the first electrode layer and the first substrate layer.
8. The display panel according to claim 7, further comprising:
the pixel retaining wall is arranged between the first substrate and the second electrode;
the pixel retaining wall is provided with a plurality of hollow-out areas, the hollow-out areas are used for forming sub-pixel areas, and the orthographic projection of the color filter film on the first substrate is arranged on the orthographic projection of the corresponding sub-pixel areas on the first substrate;
the second electrode layer comprises a plurality of pixel electrodes, and the pixel electrodes are positioned in the sub-pixel areas;
the second substrate includes a pixel circuit electrically connected to the pixel electrode.
9. The display panel according to claim 1, characterized by further comprising:
the dielectric layer is arranged on one side, away from the first substrate layer, of the optical structure;
within a tolerance of ± 0.2, the refractive index of the dielectric layer is equal to the refractive index of the optical structure.
10. The display panel according to claim 1,
the optical structure comprises a plurality of convex lenses, the convex surfaces of the lenses facing away from the first substrate layer.
11. The display panel according to claim 1,
the light absorbing particles are charged particles.
12. The display panel according to claim 11,
the light absorbing particles comprise a light absorbing material and a polymeric material, the polymeric material encapsulating the light absorbing material.
13. A method for manufacturing a display panel, comprising:
sequentially arranging a first electrode layer and an optical structure on one side of a first substrate layer to obtain a first substrate, wherein the first electrode layer is arranged between the first substrate layer and the optical structure;
providing a second substrate, wherein the second substrate comprises a second electrode layer;
and oppositely arranging the first substrate and the second substrate, wherein a solvent is arranged between the first electrode layer and the second electrode layer, the solvent is mixed with light absorbing particles, and the light absorbing particles are used for moving in an electric field formed by the first electrode layer and the second electrode layer so as to be arranged on the surface of the optical structure or separated from the surface of the optical structure.
14. The method for manufacturing a display panel according to claim 13,
set gradually first electrode layer and optical structure in one side of first substrate layer to obtain first base plate, include:
arranging the first electrode layer on one side of the first substrate layer;
performing crystallization treatment on the first electrode layer to form a polycrystalline material structure on the first electrode layer;
and arranging a plurality of lenses on one side of the first electrode layer, which is far away from the first substrate layer, by using an imprinting process so as to form the optical structure on one side of the first electrode layer, which is far away from the first substrate layer, and thus obtaining the first substrate.
15. The method for manufacturing a display panel according to claim 14,
the crystallization treatment comprises a high-temperature annealing crystallization or low-temperature crystallization process.
16. The method for manufacturing a display panel according to claim 14,
before the disposing the first electrode layer on one side of the first substrate layer, the method further includes:
arranging an optical adhesive layer on one side of the first substrate layer, wherein the shape of the surface of the optical adhesive layer on the side departing from the first substrate layer is matched with the shape of the surface of the optical structure on the side departing from the first substrate layer;
the disposing the first electrode layer on one side of the first substrate layer includes:
arranging the first electrode layer on one side, far away from the first substrate layer, of the optical adhesive layer, wherein the shape of the surface, far away from the first substrate layer, of the first electrode layer is matched with the shape of the surface, far away from the first substrate layer, of the optical structure;
the crystallizing the first electrode layer includes:
and carrying out low-temperature crystallization treatment on the first electrode layer.
17. A display device, comprising:
the display panel of any one of claims 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211542871.7A CN115903328A (en) | 2022-12-02 | 2022-12-02 | Display panel, manufacturing method and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211542871.7A CN115903328A (en) | 2022-12-02 | 2022-12-02 | Display panel, manufacturing method and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115903328A true CN115903328A (en) | 2023-04-04 |
Family
ID=86475982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211542871.7A Pending CN115903328A (en) | 2022-12-02 | 2022-12-02 | Display panel, manufacturing method and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115903328A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100172016A1 (en) * | 2008-12-29 | 2010-07-08 | Ku Hyun Park | Electrophoretic display having high reflectance and contrast |
| CN106200198A (en) * | 2016-09-29 | 2016-12-07 | 京东方科技集团股份有限公司 | Electronic paper and preparation method thereof |
| CN106292120A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof |
| CN110928098A (en) * | 2019-12-04 | 2020-03-27 | 中山大学 | High-contrast electronic paper display structure and electronic paper display device |
| CN112859475A (en) * | 2021-02-24 | 2021-05-28 | 京东方科技集团股份有限公司 | Reflective display panel, display device and working method thereof |
| CN114217488A (en) * | 2021-08-20 | 2022-03-22 | 友达光电股份有限公司 | Display device |
| CN114236935A (en) * | 2021-12-21 | 2022-03-25 | 京东方科技集团股份有限公司 | Reflective display panel and display device |
-
2022
- 2022-12-02 CN CN202211542871.7A patent/CN115903328A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100172016A1 (en) * | 2008-12-29 | 2010-07-08 | Ku Hyun Park | Electrophoretic display having high reflectance and contrast |
| CN106200198A (en) * | 2016-09-29 | 2016-12-07 | 京东方科技集团股份有限公司 | Electronic paper and preparation method thereof |
| CN106292120A (en) * | 2016-09-29 | 2017-01-04 | 京东方科技集团股份有限公司 | Display floater and driving method thereof |
| CN110928098A (en) * | 2019-12-04 | 2020-03-27 | 中山大学 | High-contrast electronic paper display structure and electronic paper display device |
| CN112859475A (en) * | 2021-02-24 | 2021-05-28 | 京东方科技集团股份有限公司 | Reflective display panel, display device and working method thereof |
| CN114217488A (en) * | 2021-08-20 | 2022-03-22 | 友达光电股份有限公司 | Display device |
| CN114236935A (en) * | 2021-12-21 | 2022-03-25 | 京东方科技集团股份有限公司 | Reflective display panel and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107632453B (en) | Display panel, manufacturing method, and display device | |
| CN113156732B (en) | Reflective display panel and manufacturing method thereof, and display device | |
| CN113703075B (en) | Display module and display device | |
| JP2006301489A (en) | Near-infrared ray cut filter | |
| CN107422515B (en) | Display device | |
| TW200403495A (en) | Color filter substrate, electrooptic device and electronic apparatus, and methods for manufacturing color filter substrate and electrooptic device | |
| TW201401133A (en) | Optical touch panel and fabricating method thereof and optical touch display panel | |
| US20250044650A1 (en) | Display panel and manufacturing method thereof | |
| TWM594163U (en) | Refective cholesteric liquid crystal display | |
| CN103926743A (en) | Color film substrate, manufacturing method thereof, and display device | |
| US11793020B2 (en) | Display panel and method of fabricating the same | |
| US20090244906A1 (en) | Display apparatus and method of manufacturing the same | |
| US20120104441A1 (en) | Method of manufacturing color filter substrate, semi-transmissive liquid crystal display using the same, and manufacturing method thereof | |
| CN101363991A (en) | Color filter substrate, manufacturing method thereof and liquid crystal display panel | |
| KR20180002402A (en) | Reflective display device | |
| CN115903328A (en) | Display panel, manufacturing method and display device | |
| JP5109424B2 (en) | Reflective display device | |
| CN101311753A (en) | Color filter substrate and manufacturing method thereof | |
| CN117784475B (en) | Display panel and display device | |
| JP2000329924A (en) | Color filter and its production | |
| CN116679499A (en) | A controllable light control display component | |
| CN109709695B (en) | Display substrate, manufacturing method thereof and display device | |
| CN112991922A (en) | Display device | |
| CN119439567A (en) | Display panel and method of manufacturing the same | |
| CN223637760U (en) | Optical film and optical module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |