CN116560150A

CN116560150A - Display panel, display terminal, driving method of display panel and manufacturing method of display panel

Info

Publication number: CN116560150A
Application number: CN202310474665.5A
Authority: CN
Inventors: 杨依林; 杜佳岭; 刘家敏; 秦天智; 权彩琳; 徐玉春; 康报虹
Original assignee: HKC Co Ltd; Mianyang HKC Optoelectronics Technology Co Ltd
Current assignee: HKC Co Ltd; Mianyang HKC Optoelectronics Technology Co Ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-08-08

Abstract

The application discloses a display panel, a display terminal, a driving method of the display panel and a manufacturing method of the display panel. Each pixel region is correspondingly provided with a reflector, a first fluid and a second fluid, wherein the first fluid is non-transparent liquid and contains a plurality of conductive particles, the second fluid is transparent liquid, the reflector is positioned between the first fluid and the second fluid, when an electric field is applied, the first fluid and the second fluid relatively move along the edge of the reflector so as to adjust the volume of the first fluid positioned on one side of the reflector adjacent to the opposite substrate, and the reflector reflects ambient light through the first fluid and/or the second fluid so as to execute image display. The resistance can be reduced by driving the first fluid to flow in the pixel region to increase the response speed of the pixel, thereby improving the display effect.

Description

Display panel, display terminal, driving method of display panel and manufacturing method of display panel

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display panel, a display terminal, a driving method of the display panel, and a manufacturing method of the display panel.

Background

The ink screen is a reflective display screen, external environment light is incident into the screen, and the light is reflected out of the screen through ink particles to realize development. The backlight is not required to provide a backlight source compared with a liquid crystal display (Liquid Crystal Display, LCD), and an Organic Light-Emitting semiconductor (OLED) is not required to be excited to emit Light compared with an OLED, so that the ink screen has a low power consumption advantage.

Currently, more sophisticated ink screen schemes include: microcapsule type ink screens and electrowetting type ink screens. The microcapsule type ink screen comprises two or more ink particles, the ink particles move under the action of an electric field force so as to emit different light rays, but the charged ink particles are easily condensed together under the action of static electricity, so that the response time of the display screen is slow, and the display is influenced. The electrowetting type ink screen utilizes the surface tension characteristic of liquid to control the ink drops to stretch and shrink on the hydrophobic layer so as to realize imaging. However, since the ink droplets can only move on one side of the reflective surface of the reflective plate, at least a part of the reflective plate is always shaded, so that the problems of low light reflectivity, low light brightness and insufficient color saturation are easily caused.

Therefore, how to increase the response speed and the light reflectivity of the pixels in the ink screen is a problem to be solved.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present application provides a display panel, a display terminal, a driving method of the display panel and a manufacturing method of the display panel, which can effectively improve the response speed of pixels and the reflectivity of light.

A display panel comprises an array substrate, an opposite substrate and a display medium layer sandwiched between the array substrate and the opposite substrate, wherein the array substrate is used for driving the display medium to form an image on one side of the opposite substrate so as to execute image display. The display medium layer comprises a plurality of pixel spacing plates which are arranged in an extending mode at least along two different directions, and the pixel spacing plates are arranged in a crossing mode to form a plurality of pixel areas which are arranged in an array mode. Each pixel region is correspondingly provided with a reflector, a first fluid and a second fluid, the first fluid and the second fluid are filled in the pixel region and have different densities and are mutually insoluble, the first fluid is non-transparent liquid and contains a plurality of conductive particles, the second fluid is transparent liquid, the reflector is positioned between the first fluid and the second fluid, when voltage is applied to the pixel region to form an electric field, the electric field drives the first fluid and the second fluid to relatively move along the edge of the reflector so as to adjust the volume of the first fluid positioned on one side of the reflector adjacent to the opposite substrate, and the reflector reflects ambient light entering from the opposite substrate through the first fluid and/or the second fluid to execute image display.

Optionally, when the electric field is not formed in the pixel area, the first fluid is located on a side of the reflector adjacent to the opposite substrate, the second fluid is located on a side of the reflector adjacent to the array substrate, the array substrate includes a plurality of pixel electrodes, at least one pixel electrode is disposed corresponding to one pixel area, the opposite substrate includes a conductive layer, an electric field is formed between the pixel electrode and the conductive layer, and the electric field is used for driving a corresponding volume of the first fluid to flow from the side of the reflector adjacent to the opposite substrate to the side of the reflector adjacent to the array substrate, so as to adjust brightness of light reflected by the reflector.

Optionally, in each pixel area, the reflective plate is spaced from at least two pixel spacers by a predetermined distance to form a first fluid channel and a second fluid channel, when a voltage is applied to the pixel area to form an electric field, the first fluid moves from the first fluid channel to the second fluid area, and the second fluid moves from the second fluid channel to the first fluid area.

Optionally, the light reflecting plate is of a flat plate structure and is arranged parallel to the opposite substrate, the light reflecting plate comprises a light reflecting surface and a light back surface which are oppositely arranged, the light reflecting surface is arranged facing the opposite substrate and is positioned in the first fluid, and the light back surface is arranged facing the array substrate and is positioned in the second fluid.

Optionally, the light reflecting plate is in a hemispherical structure, the light reflecting plate comprises a light reflecting surface and a light reflecting surface which are oppositely arranged, the light reflecting surface is an inner spherical surface of the hemispherical structure and is arranged facing the opposite substrate, and the light reflecting surface is an outer spherical surface of the hemispherical structure and is arranged facing the array substrate.

Optionally, each frame of image display period when the pixel region performs image display includes a first period and a second period that are consecutive in time, the pixel region further includes a first electric field region and a second electric field region, the first electric field region corresponds to the first fluid channel, the second electric field region corresponds to the second fluid channel, the pixel electrode and the conductive layer apply an electric field in the first electric field region during the first period to control the first fluid and the second fluid of corresponding volumes to flow around the reflective plate in a clockwise or counterclockwise direction, and the pixel electrode and the conductive layer apply an electric field in the second electric field region during the second period to maintain volumes of the first fluid and the second fluid on a reflective surface side of the reflective plate, and the reflective plate reflects ambient light entering from the opposite substrate to perform image display.

Optionally, the array substrate further includes a first hydrophobic insulating layer, the opposite substrate further includes a second hydrophobic insulating layer, the first hydrophobic insulating layer and the second hydrophobic insulating layer are respectively attached to the display medium layer, the reflector includes a third hydrophobic insulating layer, the third hydrophobic insulating layer is coated on the surface of the reflector, and the first hydrophobic insulating layer, the second hydrophobic insulating layer and the third hydrophobic insulating layer are used for preventing the first fluid or the second fluid from remaining in the array substrate, the opposite substrate or the reflector.

Optionally, the reflector comprises a first color reflector, a second color reflector and a third color reflector, wherein the first color reflector, the second color reflector and the third color reflector are respectively arranged in three adjacent pixel areas, and the pixel areas of the three different color reflectors are respectively arranged for reflecting light rays of different colors.

Optionally, the first fluid includes a red first fluid, a green first fluid and a blue first fluid, the red first fluid, the green first fluid and the blue first fluid are respectively disposed in three adjacent pixel areas, and the pixel areas of the three different color first fluids are respectively disposed, so as to reflect light rays of different colors through the reflector respectively;

or the second fluid comprises red second fluid, green second fluid and blue second fluid, the red second fluid, the green second fluid and the blue second fluid are respectively arranged in the adjacent three pixel areas, and the pixel areas of the three different-color second fluids are respectively arranged and are used for respectively reflecting light rays with different colors through the reflecting plate.

Optionally, the plurality of pixel-spacer plates extending along at least two different directions include: the light reflecting plate comprises a plurality of first pixel spacing plates and a plurality of second pixel spacing plates, wherein the first pixel spacing plates are arranged along a first direction at preset distances in sequence, the second pixel spacing plates are arranged along a second direction at preset distances in sequence, the first pixel spacing plates and the second pixel spacing plates are arranged between the array substrate and the opposite substrate in a crossed and abutted mode to form a plurality of pixel areas, the first direction is different from the second direction, the first pixel spacing plates or the second pixel spacing plates comprise at least one groove part, the light reflecting plate comprises at least one protruding part, the groove parts are arranged corresponding to the protruding parts, and the groove parts are connected with the protruding parts in a clamping mode to fix the light reflecting plate between two adjacently arranged first pixel spacing plates or between two adjacently arranged second pixel spacing plates.

The application also discloses a display terminal, including power module and foretell display panel, power module is used for providing drive power supply to display panel in order to drive display panel and carry out image display.

The application also discloses a driving method of the display panel, the display panel comprises a plurality of pixel areas which are arranged in an array, the pixel areas are provided with a reflector, a first fluid and a second fluid, the first fluid and the second fluid are filled in the pixel areas and have different densities and are mutually insoluble, the first fluid is a non-transparent liquid containing a plurality of conductive particles, the second fluid is a transparent liquid, and the reflector is positioned between the first fluid and the second fluid;

the driving method comprises the following steps: controlling the array substrate and the opposite substrate to apply voltage in the pixel area to form an electric field; adjusting the volume of the first fluid at one side of the reflector adjacent to the opposite substrate according to the electric field; the reflection plate is used for reflecting the ambient light entering from one side of the opposite substrate, and the reflected light is emitted through the first fluid and/or the second fluid to execute image display.

Optionally, the pixel area includes a first electric field region and a second electric field region, and an electric field is applied to the first electric field region during the first period to control the first fluid and the second fluid of corresponding volumes to flow around the reflector in a clockwise or counterclockwise direction; and in the second period, an electric field is applied to the second electric field area so as to maintain the volumes of the first fluid and the second fluid at the light reflecting surface side of the light reflecting plate, and the ambient light entering from the opposite substrate is reflected by the light reflecting plate so as to execute image display.

The application also provides a manufacturing method of the display panel, which comprises the following steps: providing an array substrate, sequentially arranging a plurality of first pixel spacing plates along a first direction and vertically propping the array substrate, sequentially arranging a plurality of second pixel spacing plates along a second direction and vertically propping the array substrate, and forming a plurality of pixel areas in array arrangement; filling a second fluid into the pixel region, and clamping the reflecting plate between the first pixel spacing plates or between the second pixel spacing plates at two sides of the pixel region; filling the first fluid into the pixel region, and providing a counter substrate, wherein the counter substrate is flatly paved and covered on the pixel region and is adhered to the first pixel spacing plate and the second pixel spacing plate.

Compared with the prior art that the electrophoresis type electronic paper drives the microcapsules with positive and negative charge particles to transmit light for image display, as the positive and negative charge particles in one microcapsule are attracted to each other and the static attraction is caused between a plurality of microcapsules, the positive and negative charge particles in the driving microcapsules move for a long time, so that the response speed of the display panel is slow. Meanwhile, compared with the electrowetting type electronic paper in the prior art, the shading liquid is only arranged on one side of the reflecting surface of the reflecting plate, so that the reflecting surface of the reflecting plate cannot be completely exposed when the shading liquid is driven, and the reflectivity and the light brightness of the reflecting plate are affected. In the embodiment of the application, the volume of the first fluid on one side of the reflecting surface can be controlled, so that the redundant part or all of the first fluid is positioned on one side of the backlight surface of the reflecting plate, and the reflecting surface of the reflecting plate can be completely exposed for reflecting, thereby effectively improving the brightness and the light reflectivity of the reflecting light of the reflecting plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a display terminal according to an embodiment of the present application;

FIG. 2 is a schematic side layout of the display panel of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the display panel of FIG. 2;

FIG. 4 is a schematic diagram of the process fluid distribution of the display panel of FIG. 3;

FIG. 5 is a schematic diagram of the first fluid driving process of FIG. 3;

FIG. 6 is a schematic plan view of the reflector in FIG. 3;

FIG. 7 is a schematic side view of the first pixel spacer in FIG. 6;

fig. 8 is a schematic cross-sectional view of a display panel according to a second embodiment of the present disclosure;

fig. 9 is a schematic cross-sectional view of a display panel according to a third embodiment of the present disclosure;

fig. 10 is a schematic cross-sectional view of a display panel according to a fourth embodiment of the present disclosure;

FIG. 11 is a schematic plan view of the reflector of FIG. 8;

FIG. 12 is a schematic view of the reflection principle of the reflector in FIG. 8;

fig. 13 is a flowchart of a method for manufacturing a display panel according to a fifth embodiment of the present disclosure;

fig. 14 is a flowchart of a driving method of a display panel according to a sixth embodiment of the present application.

Reference numerals: the display terminal-1, the display panel-10, the power module-20, the display area-10 a, the non-display area-10B, the array substrate-110, the opposite substrate-120, the display medium layer-130, the pixel area-P, the base layer-111, the driving layer-112, the first hydrophobic insulating layer-113, the pixel electrode-112A, the control component-112B, the upper substrate-121, the filter layer-122, the conductive layer-123, the second hydrophobic insulating layer-124, the pixel spacer-131, the first direction-F1, the second direction-F2, the first pixel spacer-131 a, the first upper pixel spacer-a 1, the first lower pixel spacer-a 2, the second pixel spacer-131B, the reflector-132A, the backlight surface-132B, the protrusion-132C, the first fluid-133, the second fluid-134, the first fluid channel-135 a, the second fluid channel 135B, the first electric field region-E1, the second electric field region-E2, the first color-132A, the second color-132B, the first color-C, the third color of the reflector-C, the third color-133B, the blue color-C, the third color reflector-C, the third color-133.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments that can be used to practice the present application. The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. Directional terms referred to in this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., are merely directions referring to the attached drawings, and thus, directional terms are used for better, more clear description and understanding of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the drawings are used for distinguishing between different objects and not for describing a particular sequential order.

Furthermore, the terms "comprises," "comprising," "includes," "including," "may be" or "including" as used in this application mean the presence of the corresponding function, operation, element, etc. disclosed, but not limited to other one or more additional functions, operations, elements, etc. Furthermore, the terms "comprises" or "comprising" mean that there is a corresponding feature, number, step, operation, element, component, or combination thereof disclosed in the specification, and that there is no intention to exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof. Furthermore, when describing embodiments of the present application, use of "may" means "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a display terminal according to an embodiment of the present application. As shown in fig. 1, the display terminal 1 includes a display panel 10 for performing image display, and a power supply module 20 for supplying driving power to the display panel 10 when performing image display. In this embodiment, the display panel 10 may be an electronic ink display panel.

Referring to fig. 2, fig. 2 is a schematic side layout of the display panel in fig. 1.

As shown in fig. 2, the display panel 10 includes a display region 10a for an image and a non-display region 10b. The display area 10a is used for performing image display, the non-display area 10b is disposed around the display area 10a to provide other auxiliary components or modules, specifically, the display panel 10 includes an array substrate 110 and an opposite substrate 120, and a display medium layer 130 sandwiched between the array substrate 110 and the opposite substrate 120, and driving elements disposed on the array substrate 110 and the opposite substrate 120 generate corresponding electric fields according to Data signals (Data), so as to drive the display medium layer 130 to emit light with corresponding brightness, so as to perform image display. The display panel 10 further includes other elements or components, such as a signal processor module and a signal sensing module, etc., disposed in the non-display area 10b.

Referring to fig. 2 and fig. 3 together, fig. 3 is a schematic cross-sectional structure of the display panel in fig. 2.

As shown in fig. 3, the array substrate 110 includes a base layer 111, a driving layer 112, and a first hydrophobic insulating layer 113, where the base layer 111, the driving layer 112, and the first hydrophobic insulating layer 113 are sequentially stacked along a light emitting direction of the display panel, the driving layer 112 includes a plurality of pixel electrodes 112a and a plurality of control components 112b, the plurality of pixel electrodes 112a and the plurality of control components 112b are disposed in the driving layer 112 in a one-to-one corresponding manner, and the first hydrophobic insulating layer 113 is disposed adjacent to the display medium layer 130, so as to prevent the first fluid 133 and the second fluid 134 in the display medium layer 130 from not completely shrinking and remaining in the array substrate 110, resulting in uneven color development of the pixel region P, or prevent the first fluid 133 and the second fluid 134 from penetrating into the array substrate 110, and damaging components in the array substrate 110.

In an exemplary embodiment, the pixel electrode 112a may be a stacked layer of one or more of indium tin oxide, indium zinc oxide, aluminum tin oxide, etc., which is not limited in this application.

In this embodiment, transparent indium zinc oxide is preferable, and a transparent conductive film may be deposited on the base layer 111 by any one of Liquid-phase deposition (Liquid-phase Exfoliation, LPE), metal-organic chemical vapor deposition (Metal-organic Chemical Vapor Deposition, MOCVD), hydride vapor deposition (Hydride Vapor phase Epitaxy, HVPE), and molecular beam deposition (Molecular beam epitaxy, MBE), or a pixel electrode may be formed by an inkjet printing method or an evaporation method.

The opposite substrate 120 includes an upper substrate 121, a filter layer 122, a conductive layer 123, and a second hydrophobic insulating layer 124, where the second hydrophobic insulating layer 124, the conductive layer 123, the filter layer 122, and the upper substrate 121 are sequentially stacked along the light emitting direction of the display panel 10. The upper substrate 121, the conductive layer 123, and the second hydrophobic insulating layer 124 are made of transparent materials. The filter layer 122 may be a color filter, and the colors of the color filter may be set according to specific needs, if color display is required, the color filter may be set to be a red-green-blue combination and arranged in a certain order, if black-white two colors are required, the color filter may not be set, that is, the filter layer 122 may not be set in the opposite substrate 120. The conductive layer 123 is used for forming an electric field with the pixel electrode 112a in the driving layer 112, and is used for driving the first fluid 133 in the display medium layer 130 to shield or expose the light reflecting plate 132 on the light reflecting surface 132a side of the light reflecting plate 132 so as to control the light reflecting plate 132 to reflect light with corresponding brightness, and the second hydrophobic insulating layer 124 is disposed adjacent to the display medium layer 130, so as to prevent the first fluid 133 and the second fluid 134 from shrinking and incompletely remaining on the opposite substrate 120 to cause uneven color development of the pixel region P, or prevent the first fluid 133 and the second fluid 134 from penetrating into the opposite substrate 120 to damage components in the opposite substrate 120.

The display medium layer 130 includes a plurality of pixel spacers 131 extending along at least two different directions, the plurality of pixel spacers 131 are abutted between the first hydrophobic insulating layer 113 and the second hydrophobic insulating layer 124, a region between two adjacent pixel spacers 131 disposed in a crossing manner is a pixel region P, and the plurality of pixel spacers 131 disposed in a crossing manner divide the array substrate 110 into a plurality of pixel regions P.

Each pixel region P is correspondingly provided with a reflector 132, a first fluid 133 and a second fluid 134, and the first fluid 133 and the second fluid 134 are filled in the pixel region P and have different densities and are mutually insoluble. The light reflecting plate 132 is disposed between the first fluid 133 and the second fluid 134 and parallel to the array substrate 110, and when a voltage is applied to the pixel region P to form an electric field, the electric field drives the first fluid 133 and the second fluid 134 to relatively move along the edge of the light reflecting plate 132 to adjust the volume of the first fluid 133 located at one side of the light reflecting plate 132 adjacent to the opposite substrate 120, and the light reflecting plate 132 reflects the ambient light entering from the opposite substrate 120 through the first fluid 133 and/or the second fluid 134 to perform image display.

The light reflecting plate 132 includes a light reflecting surface 132a and a backlight surface 132b disposed opposite to each other, the light reflecting surface 132a is configured to receive ambient light and reflect the ambient light, the light reflecting surface 132a faces the opposite substrate 120 and is located in the first fluid 133, and the backlight surface 132b faces the array substrate 110 and is located in the second fluid 134, that is, the light reflecting plate 132 is located at an interface between the first fluid 133 and the second fluid 134.

In an exemplary embodiment, the light reflecting surface 132a may be further provided with a plurality of grooves or convex structures for increasing the light condensing capability of the light reflecting surface 132 a.

When the pixel area P on the reflective surface 132a side of the reflective plate 132 is the first fluid 133, i.e. no electric field is applied, the first fluid 133 completely absorbs the ambient light incident from the opposite substrate 120, the reflective plate 132 does not reflect the light, and the pixel area P is black.

When the pixel area P on the light reflecting surface 132a side of the light reflecting plate 132 is the second fluid 134, the light reflecting plate 132 completely receives the ambient light incident from the opposite substrate 120 and reflects the ambient light, and the pixel area P displays red, blue, green, or the like with the highest brightness, depending on the color filter arrangement. When the pixel region P on the light reflecting surface 132a side of the light reflecting plate 132 includes the first fluid 133 and the second fluid 134, the first fluid 133 absorbs a portion of the ambient light incident from the opposite substrate 120 and transmits the ambient light to the light reflecting plate 132, and the light reflecting plate 132 reflects the received light. The volumes of the pixel regions P on the reflective surface 132a side of the first fluid 133 and the second fluid 134 are adjusted by the magnitude of the electric field applied to the pixel regions P, so that the pixel regions P display different brightness.

In this embodiment, the first fluid 133 is a charged and opaque liquid, the second fluid 134 is an uncharged transparent liquid, the density of the first fluid 133 is smaller than that of the second fluid 134, and the plurality of pixel electrodes 112a and the plurality of control components 112b are respectively disposed in one-to-one correspondence with the plurality of pixels for respectively controlling the brightness of the light emitted from the pixels, wherein the control components 112b output driving voltages to the pixel electrodes 112a, an electric field is formed between the pixel electrodes 112a and the conductive layer 123, and the driving voltages are used for driving the corresponding volumes of the first fluid 133 to flow from the side of the light reflecting plate 132 adjacent to the opposite substrate 120 to the side of the light reflecting plate 132 adjacent to the array substrate 110, so as to adjust the brightness of the light reflected by the light reflecting plate 132.

In an exemplary embodiment, the first fluid 133 may be ink or an alkane-based liquid such as hexadecane or the like, and the present embodiment preferably uses charged black ink as the first fluid 133, wherein the charged black ink is black ink including a certain number of charged particles.

In an exemplary embodiment, the second fluid 134 is a transparent liquid, and the second fluid 134 may be water, anhydrous glycerin, haloalkane, organic transparent liquid polymer, or the like, and this embodiment is preferably water.

In an exemplary embodiment, the density of the second fluid 134 may also be set to be less than the density of the first fluid 133 according to specific needs, and a material of a corresponding density may be selected, which is not limited in this application.

In this embodiment, a third hydrophobic insulating layer (not shown) is disposed on the surface of the reflective plate 132, so as to prevent the first fluid 133 and the second fluid 134 from remaining on the reflective plate 132 or the first fluid 133 from shrinking incompletely to cause uneven color development of the pixels. Because the first fluid 133 and the second fluid 134 respectively flow around the reflective plate 132 under the action of the electric field force, when the first fluid 133 or the second fluid 134 is located in a region of the reflective plate 132 adjacent to the array substrate 110 under the action of the electric field force, the reflective plate 132 can shield the fluid in the region, and compared with the electrowetting electronic paper, the problems of impure color development and low light utilization rate caused by ink splitting are effectively solved.

In this embodiment, the first and second hydrophobic insulating layers 113 and 124 and the third hydrophobic insulating layer may be fluorine-containing polymers such as fluorinated polyethylene and fluorocarbon wax, or synthetic high molecular melt polymers such as polyolefin, polycarbonate, polyamide, polyacrylonitrile, polyester, fluorine-free acrylate, and molten paraffin wax, or sol-gel hybrid materials made of alkoxysilane, or the like.

This example is preferably a sol-gel hybrid material made from an alkoxysilane. The hydrophobic insulating layer may be formed by any one of Liquid-phase deposition (LPE), metal-organic chemical vapor deposition (Metal-organic Chemical Vapor Deposition, MOCVD), hydride vapor deposition (Hydride Vapor phase Epitaxy, HVPE) and molecular beam deposition (Molecular beam epitaxy, MBE), or may be formed by ink-jet printing or vapor deposition.

Compared with the method that the microcapsule with positive and negative charge particles is driven in the electrophoresis electronic paper to display images through light, because the positive and negative charge particles in one microcapsule are attracted mutually and the positive and negative charge particles in a plurality of microcapsules are attracted mutually due to static electricity, the moving time of the positive and negative charge particles in the driving microcapsule is longer, so that the response speed of the display panel is slow.

Compared with the existing electrowetting electronic paper, the shading liquid is only arranged on one side of the reflecting surface of the reflecting plate, so that the reflecting surface of the reflecting plate cannot be completely exposed when the shading liquid is driven, and the reflectivity and the light brightness of the reflecting plate are affected. In this embodiment, the volume of the first fluid 133 at the light reflecting surface 132a may be controlled, so that the redundant portion or all of the first fluid 133 is located at one side of the backlight surface 132b of the light reflecting plate 132, so that the light reflecting surface 132a of the light reflecting plate 132 may be completely exposed for reflecting light, thereby effectively improving the brightness and the reflectivity of the light reflected by the light reflecting plate 132.

Referring to fig. 4, fig. 4 is a schematic diagram showing a process fluid distribution of the display panel of fig. 3.

As shown in fig. 4, when the display panel 10 is controlled to display an image, the pixel electrodes 112a in the array substrate 110 and the conductive layer 123 in the opposite substrate 120 form an electric field to drive the corresponding volumes of the first fluid 133 to flow from the reflective surface 132a of the reflective plate 132 to the backlight surface 132b of the reflective plate 132 along both sides of the reflective plate 132 and to be adjacent to the backlight surface 132b under the control of the electric field force, and simultaneously the same volumes of the second fluid 134 flow from the backlight surface 132b to the reflective surface 132a through both sides of the reflective plate 132 and to be adjacent to the second hydrophobic insulating layer 124, that is, to the opposite substrate 120, so that the first fluid 133 and the second fluid 134 present distribution of the first fluid 133 on both sides of the reflective plate 132 and adjacent to the reflective plate 132 under the control of the electric field force, and the second fluid 134 is located on both sides of the reflective plate 132 and adjacent to the distribution of the array substrate 110 and the opposite substrate 120, respectively. At this time, the external ambient light is incident to the reflective plate 132 through the opposite substrate 120, the second fluid 134 and the first fluid 133, and is emitted from the first fluid 133, the second fluid 134 and the opposite substrate 120 through reflection of the reflective plate 132 to perform image display.

In an exemplary embodiment, the first fluid 133 and the second fluid 134 may also present the first fluid 133 adjacent to the opposite substrate 120 on the light reflecting surface 132a side under the control of the electric field force, the second fluid 134 adjacent to the light reflecting plate 132, and the first fluid 133 adjacent to the array substrate 110 on the backlight surface 132b side, and the second fluid 134 adjacent to the light reflecting plate 132, which may be set according to specific needs, which is not limited in this application.

By applying different electric field forces to the pixel region P, the first fluid 133 and the second fluid 134 corresponding to different volumes are maintained on the light reflecting surface 132a side of the light reflecting plate 132, so as to control the light reflecting plate 132 to reflect light rays with different brightness, thereby displaying images.

Referring to fig. 5, fig. 5 is a schematic diagram of a first fluid driving process in fig. 3.

As shown in fig. 5, in each pixel region P, the reflective plate 132 is spaced from at least two pixel spacers 131 by a predetermined distance to form a first fluid channel 135a and a second fluid channel 135b, when a voltage is applied to the pixel region P to form an electric field, the first fluid 133 moves from the first fluid channel 135a to the region where the second fluid 134 is located, and a corresponding volume of the second fluid 134 moves from the second fluid channel to the region where the first fluid 133 is located.

The pixel region P further includes a first electric field region E1 and a second electric field region E2, and an electric field force is applied in the pixel region P when the first electric field region E1 and the second electric field region E2 are not simultaneously controlled by the pixel electrode 112a in the array substrate 110 and the conductive layer 123 in the opposite substrate 120.

Specifically, each frame image display period when the pixel region P performs image display includes a first period and a second period that are consecutive in time, and in the first period, the pixel electrode 112a and the conductive layer 123 apply an electric field in the first electric field region E1 to control the corresponding volume of the first fluid 133 from the light reflecting surface 132a side of the light reflecting plate 132 from the first fluid channel 135a to the backlight surface 132b side of the light reflecting plate 132, that is, to control the first fluid 133 from the first fluid channel 135a to the backlight surface 132b side of the light reflecting plate 132 in a counterclockwise direction, while the second fluid 134 from the backlight surface 132b side of the light reflecting plate 132 from the second fluid channel 135b to the light reflecting surface 132a side of the light reflecting plate 132, that is, to control the second fluid 134 from the second fluid channel 135b to the light reflecting surface 132a side of the light reflecting plate 132 in a counterclockwise direction.

During the second period, the pixel electrode 112a and the conductive layer 123 apply an electric field on the second electric field region E2 to maintain the volumes of the first fluid 133 and the second fluid 134 on the reflective surface 132a side of the reflective plate 132, and the reflective plate 132 reflects the ambient light entering from the opposite substrate 120 to perform image display.

In some embodiments, the first electric field region E1 and the second electric field region E2 may be controlled to enable the first fluid 133 and the second fluid 134 to move clockwise on both sides of the reflector 132, or simultaneously apply corresponding electric field forces on the first electric field region E1 and the second electric field region E2, so as to directly drive the first fluid 133 and the second fluid 134 to move to corresponding positions through the fluid channel 135, which may be set according to specific needs.

Referring to fig. 6, fig. 6 is a schematic plan layout of the reflector in fig. 3.

As shown in fig. 6, the plurality of pixel spacers 131 includes a first pixel spacer 131a sequentially arranged at a predetermined distance along the first direction F1 and a plurality of second pixel spacer 131b sequentially arranged at a predetermined distance along the second direction F2.

The light reflecting plate 132 includes at least one protruding portion 132c, the first pixel spacing plates 131a include at least one groove (not labeled), the protruding portion 132c is correspondingly engaged with the groove, and the protruding portion 132c is clamped in the groove in the first pixel spacing plates 131a, so that the light reflecting plate 132 is fixed between two adjacent first pixel spacing plates 131a, that is, in the pixel region P.

Of course, a groove may be further disposed on the second pixel spacing plates 131b, and a corresponding protrusion 132c may be disposed on the light reflecting plate 132, so that the light reflecting plate 132 is fastened and fixed between two adjacent second pixel spacing plates 131b through the protrusion 132 c.

In this embodiment, the reflective plate 132 may be a plastic plate or a metal plate with a reflective coating, and of course, a glass plate with a reflective coating may be provided according to specific requirements, which is not limited in this application.

Referring to fig. 7, fig. 7 is a schematic side view of the first pixel spacer in fig. 6.

As shown in fig. 7, the first pixel-spacing plate 131a includes a first upper pixel-spacing plate a1 and a first lower pixel-spacing plate a2, the first lower pixel-spacing plate a2 is provided with at least one groove, the protruding portion 132c of the light-reflecting plate 132 is engaged with the groove in the first lower pixel-spacing plate a2, and the first upper pixel-spacing plate a1 is aligned with the first lower pixel-spacing plate a 2.

Referring to fig. 8, fig. 8 is a schematic cross-sectional structure of a display panel according to a second embodiment of the present disclosure. As shown in fig. 8, the array substrate 110 includes a base layer 111, a driving layer 112, and a first hydrophobic insulating layer 113, where the base layer 111, the driving layer 112, and the first hydrophobic insulating layer 113 are sequentially stacked along a light emitting direction of the display panel, the driving layer 112 includes a plurality of pixel electrodes 112a and a plurality of control components 112b, the plurality of pixel electrodes 112a and the plurality of control components 112b are disposed in the driving layer 112 in a one-to-one corresponding manner, and the first hydrophobic insulating layer 113 is disposed adjacent to the display medium layer 130, so as to prevent the first fluid 133 and the second fluid 134 in the display medium layer 130 from not completely shrinking and remaining in the array substrate 110, resulting in uneven color development of the pixel region P, or prevent the first fluid 133 and the second fluid 134 from penetrating into the array substrate 110, and damaging components in the array substrate 110.

In this embodiment, transparent indium zinc oxide is preferable, and a transparent conductive film may be deposited on the base layer by any one of Liquid-phase deposition (Liquid-phase Exfoliation, LPE), metal-organic chemical vapor deposition (Metal-organic Chemical Vapor Deposition, MOCVD), hydride vapor deposition (Hydride Vapor phase Epitaxy, HVPE), and molecular beam deposition (Molecular beam epitaxy, MBE), or a pixel electrode may be formed by an inkjet printing method or an evaporation method.

The opposite substrate 120 includes an upper substrate 121, a conductive layer 123, and a second hydrophobic insulating layer 124, wherein the second hydrophobic insulating layer 124, the conductive layer 123, and the upper substrate 121 are sequentially stacked along the light emitting direction of the display panel 10. The upper substrate 121, the conductive layer 123, and the second hydrophobic insulating layer 124 are made of transparent materials.

The conductive layer 123 is used for forming an electric field with the pixel electrode 112a in the driving layer 112, and is used for driving the first fluid 133 in the display medium layer 130 to shield or expose the light reflecting plate 132 on the light reflecting surface 132a side of the light reflecting plate 132 so as to control the light reflecting plate 132 to reflect light with corresponding brightness, and the second hydrophobic insulating layer 124 is disposed adjacent to the display medium layer 130, so as to prevent the first fluid 133 and the second fluid 134 from shrinking and incompletely remaining on the opposite substrate 120 to cause uneven color development of the pixel region P, or prevent the first fluid 133 and the second fluid 134 from penetrating into the opposite substrate 120 to damage components in the opposite substrate 120.

Each pixel region P is correspondingly provided with a reflector 132, a first fluid 133 and a second fluid 134, and the first fluid 133 and the second fluid 134 are filled in the pixel region P and have different densities and are mutually insoluble. The light reflecting plate 132 is disposed between the first fluid 133 and the second fluid 134 and parallel to the array substrate 110, and when a voltage is applied to the pixel region P to form an electric field, the electric field drives the first fluid 133 and the second fluid 134 to relatively move along the edge of the light reflecting plate 132 to adjust the volume of the first fluid located at one side of the light reflecting plate 132 adjacent to the opposite substrate 120, and the light reflecting plate 132 reflects the ambient light entering from the opposite substrate 120 through the first fluid 133 and/or the second fluid 134 to perform image display.

The plurality of reflectors 132 include a first color reflector 132A, a second color reflector 132B and a third color reflector 132C, and the reflectors of the three colors are respectively used for reflecting light rays of different colors, that is, the pixels of the reflectors of the three colors are used for emitting light rays of three different colors, wherein the light rays of the three colors can be red, blue and green, and of course can also be other three colors, which is not limited in this application. The display panel 10 is controlled to display a color image by adjacently disposing pixels of three colors to constitute a pixel unit capable of emitting light of an arbitrary color.

When the pixel area P on the light reflecting surface 132a side of the light reflecting plate 132 is the second fluid 134, the light reflecting plate 132 completely receives the ambient light incident from the opposite substrate 120 and reflects the ambient light, and the pixel area P displays red, blue, green, or the like with the highest brightness, depending on the color of the light reflecting plate 132. When the pixel region P on the light reflecting surface 132a side of the light reflecting plate 132 includes the first fluid 133 and the second fluid 134, the first fluid 133 absorbs a portion of the ambient light incident from the opposite substrate 120 and transmits the ambient light to the light reflecting plate 132, and the light reflecting plate 132 reflects the received light into light having a color corresponding to the color of the light reflecting plate 132. The volumes of the pixel regions P on the reflective surface 132a side of the first fluid 133 and the second fluid 134 are adjusted by the magnitude of the electric field applied to the pixel regions P, so that the pixel regions P display different brightness.

In this embodiment, a third hydrophobic insulating layer (not identified) is disposed on the surface of the reflective plate 132, so as to prevent the first fluid 133 and the second fluid 134 from remaining on the reflective plate 132 or the first fluid 133 and the second fluid 134 from shrinking incompletely to cause uneven color development of the pixels. Because the first fluid 133 and the second fluid 134 respectively flow around the reflective plate 132 under the action of the electric field force, when the first fluid 133 or the second fluid 134 is located in a region of the reflective plate 132 adjacent to the array substrate 110 under the action of the electric field force, the reflective plate 132 can shield the fluid in the region, and compared with the electrowetting electronic paper, the problems of impure color development and low light utilization rate caused by ink splitting are effectively solved.

By arranging the reflecting plates with different colors in each pixel region P, the pixel regions P emit light rays with different colors according to the color difference of the reflecting plates, the setting of a filter layer is saved, the thickness of a display panel is reduced, one pixel region P is controlled to display only one color, and compared with the electrophoretic electronic paper, the control microcapsules can respectively display multiple colors, so that the control difficulty of the pixel regions P can be effectively reduced, and the accuracy of controlling the brightness of the light rays of the pixel regions P is improved.

Referring to fig. 9, fig. 9 is a schematic cross-sectional structure of a display panel according to a third embodiment of the present disclosure. As shown in fig. 9, the array substrate 110 includes a base layer 111, a driving layer 112, and a first hydrophobic insulating layer 113, where the base layer 111, the driving layer 112, and the first hydrophobic insulating layer 113 are sequentially stacked along a light emitting direction of the display panel, the driving layer 112 includes a plurality of pixel electrodes 112a and a plurality of control components 112b, the plurality of pixel electrodes 112a and the plurality of control components 112b are disposed in the driving layer 112 in a one-to-one corresponding manner, and the first hydrophobic insulating layer 113 is disposed adjacent to the display medium layer 130, so as to prevent the first fluid 133 and the second fluid 134 in the display medium layer 130 from not completely shrinking and remaining in the array substrate 110, resulting in uneven color development of the pixel region P, or prevent the first fluid 133 and the second fluid 134 from penetrating into the array substrate 110, and damaging components in the array substrate 110.

In this embodiment, the first fluid 133 is a charged and opaque fluid, the second fluid 134 is an uncharged transparent fluid, the density of the first fluid 133 is smaller than that of the second fluid 134, and the plurality of pixel electrodes 112a and the plurality of control components 112b are respectively disposed in one-to-one correspondence with the plurality of pixels for respectively controlling the brightness of the light emitted by the pixels, wherein the control components 112b output driving voltages to the pixel electrodes 112a, an electric field is formed between the pixel electrodes 112a and the conductive layer 123, and the driving voltages are used for driving the corresponding volumes of the first fluid 133 to flow from the side of the light reflecting plate 132 adjacent to the opposite substrate 120 to the side of the light reflecting plate 132 adjacent to the array substrate 110, so as to adjust the brightness of the light reflected by the light reflecting plate 132. The light reflecting plate 132 includes a light reflecting surface 132a and a backlight surface 132b disposed opposite to each other, the light reflecting surface 132a is configured to receive ambient light and reflect the ambient light, the light reflecting surface 132a faces the opposite substrate 120 and is located in the first fluid 133, and the backlight surface 132b faces the array substrate 110 and is located in the second fluid 134, that is, the light reflecting plate 132 is located at an interface between the first fluid 133 and the second fluid 134.

The first fluid 133 includes three different colors, which may be a red first fluid 133A, a green first fluid 133B, and a blue first fluid 133C, and the first fluid 133 may be configured as three or more other colors according to specific needs. When the pixel areas P on the reflective surface 132a side of the reflective plate 132 are all the first fluids 133, i.e. no electric field is applied, the first fluids 133 with different colors completely absorb the ambient light incident from the opposite substrate 120 and transmit only the light with the corresponding color to the reflective plate 132, the reflective plate 132 reflects the received light, and the pixel areas P display the light with the highest gray level corresponding to the color. For example, when the red first fluid 133A is in the pixel region P, the red first fluid 133A completely absorbs the ambient light and transmits only the red light of the highest gray level when the electric field is not applied.

When the pixel area P on the light reflecting surface 132a side of the light reflecting plate 132 is the second fluid 134, the light reflecting plate 132 completely receives the ambient light incident from the opposite substrate 120 and reflects the ambient light, and the pixel area P is white. When the pixel region P on the light reflecting surface 132a side of the light reflecting plate 132 includes the first fluid 133 and the second fluid 134, the first fluid 133 absorbs part of the ambient light incident from the opposite substrate 120 and transmits the ambient light to the light reflecting plate 132, and the light reflecting plate 132 reflects the received light of the corresponding color. The volumes of the pixel regions P on the reflective surface 132a side of the first fluid 133 and the second fluid 134 are adjusted by the magnitude of the electric field applied to the pixel regions P, so that the pixel regions P display different brightness.

In an exemplary embodiment, the second fluid 134 may be configured as three different colors of fluids, which may be a red second fluid, a green second fluid, and a blue second fluid, respectively, and the second fluid 134 may be configured as three or more other colors of fluids according to specific needs, which is not limited in this application.

Referring to fig. 10, fig. 10 is a schematic cross-sectional structure of a display panel according to a fourth embodiment of the present disclosure. As shown in fig. 10, the array substrate 110 includes a base layer 111, a driving layer 112, and a first hydrophobic insulating layer 113, where the base layer 111, the driving layer 112, and the first hydrophobic insulating layer 113 are sequentially stacked along a light emitting direction of the display panel, the driving layer 112 includes a plurality of pixel electrodes 112a and a plurality of control components 112b, the plurality of pixel electrodes 112a and the plurality of control components 112b are disposed in the driving layer 112 in a one-to-one corresponding manner, and the first hydrophobic insulating layer 113 is disposed adjacent to the display medium layer 130, for preventing liquid in the display medium layer 130 from penetrating into the array substrate 110.

The opposite substrate 120 includes an upper substrate 121, a filter layer 122, a conductive layer 123, and a second hydrophobic insulating layer 124, where the second hydrophobic insulating layer 124, the conductive layer 123, the filter layer 122, and the upper substrate 121 are sequentially stacked along the light emitting direction of the display panel 10. The upper substrate 121, the conductive layer 123, and the second hydrophobic insulating layer 124 are made of transparent materials. The filter layer 122 may be a color filter, and the colors of the color filter may be set according to specific needs, if color display is required, the color filter may be set to be a red-green-blue combination and arranged in a certain order, if black-white two colors are required, the color filter may not be set, that is, the filter layer 122 may not be set in the opposite substrate 120.

Each pixel region P is correspondingly provided with a reflector 132, a first fluid 133 and a second fluid 134, and the first fluid 133 and the second fluid 134 are filled in the pixel region P and have different densities and are mutually insoluble. The reflective plate 132 has a hemispherical structure and is disposed along a plane between the first fluid 133 and the second fluid 134, the circular plane of the hemispherical reflective plate faces the opposite substrate 120, the outer spherical surface portion faces the array substrate 110, and a certain gap exists between the reflective plate 132 and the pixel spacers 131 disposed on both sides, when a voltage is applied to the pixel region P to form an electric field, the electric field drives the first fluid 133 and the second fluid 134 to relatively move along the edge of the reflective plate 132, so as to adjust the volume of the first fluid located on one side of the reflective plate 132 adjacent to the opposite substrate 120, and the reflective plate 132 reflects ambient light entering from the opposite substrate 120 through the first fluid 133 and/or the second fluid 134 to perform image display.

In this embodiment, the first fluid 133 is a charged and opaque fluid, the second fluid 134 is an uncharged transparent liquid, the density of the first fluid 133 is smaller than that of the second fluid 134, and the plurality of pixel electrodes 112a and the plurality of control components 112b are respectively arranged in one-to-one correspondence with the plurality of pixels for respectively controlling the brightness of the light emitted by the pixels, wherein the control components 112b output a driving voltage to the pixel electrodes 112a, and an electric field is formed between the pixel electrodes 112a and the conductive layer 123 to control the first fluid 133 to move along the fluid channels on both sides of the reflective plate 132, and the first fluid 133 and the second fluid 134 are mutually immiscible, so that when the first fluid 133 flows under the effect of the electric field, the second fluid 134 flows correspondingly, thereby achieving the effect of shielding or exposing the reflective plate 132, and further controlling the brightness of the light reflected by the reflective plate 132.

The light reflecting plate 132 includes a light reflecting surface 132a and a backlight surface 132b, which are oppositely disposed, the light reflecting surface 132a is an inner spherical surface of a hemispherical structure, and is configured to receive ambient light and reflect the ambient light, the light reflecting surface 132a faces the opposite substrate 120, the backlight surface 132b is an outer spherical surface of a hemispherical structure, faces the array substrate 110, and is located in the second fluid 134. When the pixel area P on the reflective surface 132a side of the reflective plate 132 is the first fluid 133, i.e. no electric field is applied, the first fluid 133 completely absorbs the ambient light incident from the opposite substrate 120, the reflective plate 132 does not reflect the light, and the pixel area P is black.

In this embodiment, the outer surface and the inner surface of the hemispherical reflector are both provided with a third hydrophobic insulating layer (not identified) for preventing the first fluid 133 and the second fluid 134 from remaining on the reflector 132 or the first fluid 133 from shrinking incompletely to cause uneven color development of the pixels. Because the first fluid 133 and the second fluid 134 respectively flow around the reflective plate 132 under the action of the electric field force, when the first fluid 133 or the second fluid 134 is located in a region of the reflective plate 132 adjacent to the array substrate 110 under the action of the electric field force, the reflective plate 132 can shield the fluid in the region, and compared with the electrowetting electronic paper, the problems of impure color development and low light utilization rate caused by ink splitting are effectively solved.

Of course, the setting of the filter layer 122 may be omitted according to specific needs, and the reflective plate may be set to different colors or the first fluid or the second fluid may be set to different colors, so as to control the pixel region P to emit light rays of different colors, which is not limited in this application.

Referring to fig. 11, fig. 11 is a schematic plan layout of the reflector in fig. 10.

As shown in fig. 11, the plurality of pixel spacers 131 include a first pixel spacer 131a sequentially arranged at predetermined intervals along the first direction F1 and a plurality of second pixel spacers 131b sequentially arranged at predetermined intervals along the second direction F2, and the first pixel spacer 131a and the second pixel spacer 131b are disposed to intersect to form a plurality of pixel regions P arranged in an array.

The reflective plate 132 has a hemispherical structure, and the reflective plate 132 is circular along the light emitting direction of the display panel 10, so that a gap exists between the reflective plate 132 and the pixel spacers 131 at two sides, the gap is a first fluid channel 135a and a second fluid channel 135b for the first fluid 133 and the second fluid 134 to flow up and down, and the first fluid 133 and the second fluid 134 in the pixel region P flow into or out of the reflective surface 132a of the reflective plate 132 through the first fluid channel 135a or the second fluid channel 135b under the action of an electric field force, so as to control the amount of light incident into the reflective plate 132, thereby controlling the brightness of the light emitted by the reflective plate 132.

The light reflecting plate 132 includes at least one protruding portion 132c, the second pixel spacing plates 131b include at least one groove (not labeled), the protruding portion 132c is correspondingly engaged with the groove, and the protruding portion 132c is clamped in the groove in the second pixel spacing plates 131b, so that the light reflecting plate 132 is fixed between two adjacent second pixel spacing plates 131b, that is, in the pixel region P.

Of course, a groove may be further disposed on the first pixel spacing plates 131a, and a corresponding protrusion 132c may be disposed on the light reflecting plate 132, so that the light reflecting plate 132 is fastened and fixed between two adjacent first pixel spacing plates 131a through the protrusion 132 c.

Referring to fig. 12, fig. 12 is a schematic view of reflection principle of the reflector in fig. 10.

As shown in fig. 12, when the ambient light is incident on the spherical reflector 132, the ambient light is reflected at least twice in the reflector 132 and finally exits to the external environment, so as to control the pixels to display images, and the ambient light is reflected for multiple times by the spherical surface, so that the light gathering capability of the reflector 132 can be effectively improved, the brightness of the emergent light of the pixels is improved, and the display effect of the image display is improved.

Referring to fig. 13, fig. 13 is a flowchart of a method for manufacturing a display panel according to a fifth embodiment of the present disclosure. As shown in fig. 13, the specific manufacturing steps include:

S101, providing an array substrate, sequentially arranging a plurality of first pixel spacing plates along a first direction and vertically abutting the array substrate, sequentially arranging a plurality of second pixel spacing plates along a second direction and vertically abutting the array substrate, and forming a plurality of pixel areas in array arrangement.

The surface of the array substrate 110 is provided with a first hydrophobic insulating layer 113, a plurality of first pixel spacing plates 131a are sequentially arranged along a first direction F1 at preset distances and vertically abutted against the first hydrophobic insulating layer 113, a plurality of second pixel spacing plates 131b are sequentially arranged along a second direction F2 at preset distances and vertically abutted against the first hydrophobic insulating layer 113, and a plurality of pixel areas P which are arranged in an array are formed by the intersecting arrangement of the first pixel spacing plates 131a and the second pixel spacing plates 131b, namely, the pixel areas P. S102, filling a second fluid into the pixel area, and clamping the reflecting plate between the first pixel spacing plates or between the second pixel spacing plates at two sides of the pixel area.

The second fluid 134 is filled in the pixel region P formed by the first pixel spacing plates 131a and the second pixel spacing plates 131b, and then the light reflecting plate 132 is clamped between the two first pixel spacing plates 131a or between the two second pixel spacing plates 131b, wherein the light reflecting plate 132 is level with the liquid surface of the second fluid 134. The light reflecting plate 132 includes at least one protruding portion 132c, the first pixel spacing plates 131a include at least one groove (not labeled), the protruding portion 132c is correspondingly engaged with the groove, and the protruding portion 132c is clamped in the groove in the first pixel spacing plates 131a, so that the light reflecting plate 132 is fixed between two adjacent first pixel spacing plates 131 a. Of course, a groove may be further disposed on the second pixel spacing plates 131b, and a corresponding protrusion 132c may be disposed on the light reflecting plate 132, so that the light reflecting plate 132 is fastened and fixed between two adjacent second pixel spacing plates 131b through the protrusion 132 c.

The first pixel spacing plate 131a includes a first lower pixel spacing plate a2, and a groove in the first pixel spacing plate 131a is disposed on a side of the first lower pixel spacing plate a2 away from the array substrate 110. A grid region is formed between the first lower pixel spacing plate a2 and the second pixel spacing plate 131b, the second fluid 134 is filled in the grid region, the reflecting plate 132 is attached to the surface of the second fluid 134, and the protruding portion 132c of the reflecting plate 132 is correspondingly engaged with the groove in the first lower pixel spacing plate a 2.

S103, filling the first fluid into the pixel area, providing a counter substrate, and flatly paving the counter substrate to cover the pixel area and attaching the counter substrate to the first pixel spacing plate and the second pixel spacing plate.

The first upper pixel spacer a1 is disposed on the first lower pixel spacer a2 along the light emitting direction of the display panel 10, the first upper pixel spacer a1 is disposed in alignment with the first lower pixel spacer a2, the first fluid 133 is filled in the grid-shaped region formed by the first upper pixel spacer a1 and the second pixel spacer 131b, and the opposite substrate 120 is disposed over the first upper pixel spacer a1 and the plurality of pixel regions P formed by the first pixel spacer 131a and the plurality of second pixel spacers 131b to form the display panel 10.

Referring to fig. 14, fig. 14 is a flowchart of a driving method of a display panel according to a sixth embodiment of the present disclosure. As shown in fig. 14, the specific manufacturing steps include:

s201, the array substrate and the opposite substrate are controlled to apply voltage to the pixel region to form an electric field.

The array substrate 110 includes a driving layer 112, the driving layer 112 includes a plurality of pixel electrodes 112a and a plurality of control components 112b, the plurality of pixel electrodes 112a and the plurality of control components 112b are disposed in the driving layer 112 in a one-to-one correspondence manner, the opposite substrate 120 includes a conductive layer 123, and when the display panel 10 is controlled to display images, the pixel electrodes 112a in the array substrate 110 and the conductive layer 123 in the opposite substrate 120 form an electric field to drive the first fluid 133 to flow.

S202, adjusting the volume of the first fluid at one side of the reflector adjacent to the opposite substrate according to the magnitude of the electric field.

By controlling the magnitude of the electric field force applied in the pixel region P, the corresponding volume of the first fluid 133 is driven to flow from the light reflecting surface 132a of the light reflecting plate 132 to the backlight surface 132b of the light reflecting plate 132 along both sides of the light reflecting plate 132, and simultaneously the same volume of the second fluid 134 flows from the backlight surface 132b to the light reflecting surface 132a through the fluid channel 135.

S203, the reflection plate is used for reflecting the ambient light entering from one side of the opposite substrate, and the reflected light is emitted through the first fluid and/or the second fluid to execute image display.

When a voltage is applied to the pixel region P to form an electric field, the electric field drives the first fluid 133 and the second fluid 134 to relatively move along the edge of the reflective plate 132, so as to adjust the volume of the first fluid located on the side of the reflective plate 132 adjacent to the opposite substrate 120, and the reflective plate 132 reflects the ambient light entering from the opposite substrate 120 through the first fluid 133 and/or the second fluid 134 to perform image display.

When the pixel area P on the light reflecting surface 132a side of the light reflecting plate 132 is the second fluid 134, the light reflecting plate 132 completely receives the ambient light incident from the opposite substrate 120 and reflects the ambient light, and the pixel area P shows the highest brightness of the corresponding color. When the pixel region P on the light reflecting surface 132a side of the light reflecting plate 132 includes the first fluid 133 and the second fluid 134, the first fluid 133 absorbs a portion of the ambient light incident from the opposite substrate 120 and transmits the ambient light to the light reflecting plate 132, and the light reflecting plate 132 reflects the received light. The volumes of the pixel regions P on the reflective surface 132a side of the first fluid 133 and the second fluid 134 are adjusted by the magnitude of the electric field applied to the pixel regions P, so that the pixel regions P display different brightness.

It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.

Claims

1. The display panel comprises an array substrate, an opposite substrate and a display medium layer clamped between the array substrate and the opposite substrate, wherein the array substrate is used for driving a display medium to form an image on one side of the opposite substrate so as to execute image display;

the display medium layer is characterized by comprising a plurality of pixel spacing plates which are arranged in an extending mode at least along two different directions, and the pixel spacing plates are arranged in a crossing mode to form a plurality of pixel areas which are arranged in an array mode;

each pixel region is correspondingly provided with a reflector, a first fluid and a second fluid, the first fluid and the second fluid are filled in the pixel region and have different densities and are mutually insoluble, the first fluid is non-transparent liquid and contains a plurality of conductive particles, the second fluid is transparent liquid, the reflector is positioned between the first fluid and the second fluid, when voltage is applied to the pixel region to form an electric field, the electric field drives the first fluid and the second fluid to relatively move along the edge of the reflector so as to adjust the volume of the first fluid positioned on one side of the reflector adjacent to the opposite substrate, and the reflector reflects ambient light entering from the opposite substrate through the first fluid and/or the second fluid so as to execute image display.

2. The display panel of claim 1, wherein the density of the first fluid is smaller than the density of the second fluid, the first fluid is located at a side of the reflector adjacent to the opposite substrate when no electric field is formed in the pixel region, the second fluid is located at a side of the reflector adjacent to the array substrate, the array substrate includes a plurality of pixel electrodes, at least one of the pixel electrodes is disposed corresponding to one of the pixel regions, the opposite substrate includes a conductive layer, the electric field is formed between the pixel electrodes and the conductive layer, and the electric field is used to drive a corresponding volume of the first fluid to flow from the side of the reflector adjacent to the opposite substrate to the side of the reflector adjacent to the array substrate, so as to adjust brightness of light reflected by the reflector.

3. The display panel of claim 2, wherein,

in each pixel region, the reflective plate is at least spaced from two pixel spacers by a predetermined distance to form a first fluid channel and a second fluid channel, when a voltage is applied to the pixel region to form an electric field, the first fluid moves from the first fluid channel to the region where the second fluid is located, and the second fluid moves from the second fluid channel to the region where the first fluid is located.

4. The display panel of claim 3, wherein the light reflecting plate is of a flat plate structure and is disposed parallel to the opposite substrate, the light reflecting plate includes a light reflecting surface disposed facing the opposite substrate and disposed in the first fluid and a backlight surface disposed facing the array substrate and disposed in the second fluid.

5. The display panel of claim 3, wherein the light reflecting plate has a hemispherical structure, the light reflecting plate comprises a light reflecting surface and a backlight surface which are oppositely arranged, the light reflecting surface is an inner spherical surface of the hemispherical structure and faces the opposite substrate, and the backlight surface is an outer spherical surface of the hemispherical structure and faces the array substrate.

6. The display panel according to claim 4 or 5, wherein each frame image display period when the pixel region performs image display includes a first period and a second period that are continuous in time, the pixel region further includes a first electric field region corresponding to the first fluid channel and a second electric field region corresponding to the second fluid channel,

In the first period, the pixel electrode and the conductive layer apply an electric field in the first electric field region to control the corresponding volumes of the first fluid and the second fluid to flow around the reflector in a clockwise or counterclockwise direction;

and in the second period, the pixel electrode and the conductive layer apply an electric field in the second electric field region so as to maintain the volumes of the first fluid and the second fluid on one side of the reflecting surface of the reflecting plate, and the reflecting plate reflects the ambient light entering from the opposite substrate so as to execute the image display.

7. The display panel of claim 6, wherein the array substrate further comprises a first hydrophobic insulating layer, the opposite substrate further comprises a second hydrophobic insulating layer, the first hydrophobic insulating layer and the second hydrophobic insulating layer are respectively attached to the display medium layer, the reflector comprises a third hydrophobic insulating layer, the third hydrophobic insulating layer is coated on the surface of the reflector, and the first hydrophobic insulating layer, the second hydrophobic insulating layer and the third hydrophobic insulating layer are used for preventing the first fluid or the second fluid from remaining on the array substrate, the opposite substrate or the reflector.

8. The display panel of claim 7, wherein the light reflecting plate includes a first color light reflecting plate, a second color light reflecting plate and a third color light reflecting plate, the first color light reflecting plate, the second color light reflecting plate and the third color light reflecting plate are respectively disposed in three adjacent pixel regions, and the pixel regions of three different color light reflecting plates are respectively disposed for reflecting light rays of different colors.

9. The display panel of claim 7, wherein the first fluid includes a red first fluid, a green first fluid, and a blue first fluid, the red first fluid, the green first fluid, and the blue first fluid are respectively disposed in adjacent three pixel regions, and the pixel regions of three different color first fluids are respectively disposed for reflecting light rays of different colors through the light reflecting plate;

10. The display panel of claim 6, wherein,

the plurality of pixel-separating plates extending along at least two different directions include: a plurality of first pixel spacers spaced a predetermined distance along a first direction and sequentially arranged, and a plurality of second pixel spacers spaced a predetermined distance along a second direction and sequentially arranged, wherein the plurality of first pixel spacers and the plurality of second pixel spacers are arranged between the array substrate and the opposite substrate in a crossing manner to form a plurality of pixel regions, and the first direction is different from the second direction;

the first pixel spacing plate or the second pixel spacing plate comprises at least one groove part, the reflecting plate comprises at least one protruding part, the groove part is correspondingly arranged with the protruding part, and the groove part is in clamping connection with the protruding part so as to fix the reflecting plate between two adjacently arranged first pixel spacing plates or between two adjacently arranged second pixel spacing plates.

11. A display terminal comprising a power module and the display panel according to any one of claims 1 to 10, wherein the power module is configured to supply driving power to the display panel to drive the display panel to perform image display.

12. The driving method of the display panel is characterized in that the display panel comprises a plurality of pixel areas which are arranged in an array, wherein the pixel areas are provided with a reflecting plate, first fluid and second fluid, the first fluid and the second fluid are filled in the pixel areas, have different densities and are mutually insoluble, the first fluid is non-transparent liquid containing a plurality of conductive particles, the second fluid is transparent liquid, and the reflecting plate is positioned between the first fluid and the second fluid;

the driving method includes:

controlling the array substrate and the opposite substrate to apply voltage in the pixel area to form an electric field;

adjusting the volume of the first fluid on one side of the reflector adjacent to the opposite substrate according to the electric field;

and the reflecting plate reflects the ambient light entering from one side of the opposite substrate, and the reflected light exits through the first fluid and/or the second fluid to execute image display.

13. The driving method of a display panel according to claim 12, wherein the pixel region includes a first period and a second period in succession when performing image display, the pixel region including a first electric field region and a second electric field region;

Applying an electric field in the first electric field area during the first period of time to control the corresponding volumes of the first fluid and the second fluid to flow around the reflector in a clockwise or anticlockwise direction; and in the second period, an electric field is applied to the second electric field area so as to maintain the volumes of the first fluid and the second fluid on one side of the reflecting surface of the reflecting plate, and the ambient light entering from the opposite substrate is reflected by the reflecting plate so as to execute the image display.

14. A method for manufacturing a display panel, comprising:

providing an array substrate, sequentially arranging a plurality of first pixel spacing plates along a first direction and vertically abutting the array substrate, sequentially arranging a plurality of second pixel spacing plates along a second direction and vertically abutting the array substrate, and forming a plurality of pixel areas in array arrangement;

filling a second fluid into the pixel region, and clamping the reflecting plate between the first pixel spacing plates or between the second pixel spacing plates at two sides of the pixel region;

filling a first fluid into the pixel region, and providing a counter substrate, wherein the counter substrate is tiled and covered on the pixel region and is attached to the first pixel spacing plate and the second pixel spacing plate.