CN114967218B - Double-sided display screen and display - Google Patents
Double-sided display screen and display Download PDFInfo
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- CN114967218B CN114967218B CN202210744346.7A CN202210744346A CN114967218B CN 114967218 B CN114967218 B CN 114967218B CN 202210744346 A CN202210744346 A CN 202210744346A CN 114967218 B CN114967218 B CN 114967218B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
Abstract
A double-sided display screen comprises a first color matching layer, a second color matching layer, a first substrate, a second substrate and a third substrate; the first substrate, the first color matching layer, the second substrate, the second color matching layer and the third substrate are sequentially stacked; the first and second color matching layers are used to display different colors, respectively, so that light irradiated onto the first and third substrates from the outside exhibits colors corresponding to the first and second color matching layers, respectively, when reflected by the first and third substrates. The double-sided display screen can realize full-color double-sided display with low power consumption, has soft reflected light, light and thin structure and reduces production cost. The application also provides a display using the double-sided display screen.
Description
Technical Field
The application relates to the technical field of liquid crystal display, in particular to a double-sided display screen and a display with the double-sided display screen.
Background
The liquid crystal display device (LCD, liquid Crystal Display) has many advantages of thin body, power saving, no radiation, etc., and has been widely used.
The conventional lcd is a backlight structure display, which includes a plurality of optical film layers such as a polarizer, a prism sheet, a color filter, etc. laminated at one time, wherein the polarizer and the color filter are essential components for realizing color display of images. Because of limitations of backlight sources mounted on conventional liquid crystal displays, existing liquid crystal display devices capable of displaying images in color are limited in that they can only display images on one side.
The information display panels used in the light scenes of airport waiting halls, train station waiting halls or large exhibition halls, or in business halls such as communication industry, government windows, financial industry, traffic industry and the like generally need to display pictures on both sides of a display, for the existing display, a back-to-back arrangement mode of two display modules is mostly adopted (please refer to fig. 1), each liquid crystal display independently corresponds to a driving circuit, and each display is only responsible for displaying contents on one side. Such an arrangement increases the thickness of the display, which is disadvantageous for saving space and power consumption.
In addition, in order to realize full-color display, the existing color display generally adopts a color filter, but the color filter light sheet only can allow light rays of partial wave bands to pass through, and the light rays need to be polarized by means of a polaroid, so that the light efficiency can be attenuated, the power consumption is increased, and meanwhile, the thickness of the display can be increased due to the arrangement of the polaroid and the color filter, so that the control of the production cost is further not facilitated.
Disclosure of Invention
Therefore, the application aims to provide a double-sided display screen which can realize full-color double-sided display with low power consumption, has soft reflected light, light and thin structure and reduces production cost.
The application provides a double-sided display screen, which is characterized by comprising: a first color matching layer, a second color matching layer, a first substrate, a second substrate and a third substrate; the first substrate, the first color matching layer, the second substrate, the second color matching layer and the third substrate are sequentially stacked;
the first and second color matching layers are used for displaying different colors, so that light rays irradiated onto the first and third substrates from the outside respectively show colors corresponding to the first and second color matching layers when reflected by the first and third substrates.
In an embodiment, the first color matching layer includes a first electrode, a second electrode and a first pixel layer sandwiched between the first electrode and the second electrode, the first pixel layer includes a plurality of first pixel spaces arranged in an array, and a first liquid crystal capsule is disposed in the first pixel spaces and is configured to generate a preset color under the action of an electric field applied by the first electrode and the second electrode and display the color through the first electrode and the first substrate.
In an embodiment, the first liquid crystal capsule includes a first core material and a first wall material, the first core material is used for changing the color of the transmitted light and controlling the light quantity of the transmitted light to form a preset color light, and the first wall material is used for moving under the action of an electric field to draw the first liquid crystal capsule to be close to the first substrate.
In one embodiment, the first core material of the first liquid crystal capsule comprises a chiral agent for changing the light transmission amount of the color mixed liquid crystal, the color mixed liquid crystal for controlling the color of light, and ionized water for dispersing the color mixed liquid crystal; the first wall material comprises diisocyanate; the first liquid crystal capsules include a plurality of kinds of first liquid crystal capsules respectively exhibiting different colors, and the first liquid crystal capsules of the respective colors are equal in number.
In an embodiment, the first pixel space further comprises a first class of electrophoretic particles, the first class of electrophoretic particles comprising the first liquid crystal capsules of at least one color and a first charging medium.
In an embodiment, the second color matching layer includes a third electrode, a fourth electrode and a second pixel layer sandwiched between the third electrode and the fourth electrode, the second pixel layer includes a plurality of second pixel spaces arranged in an array, and a second liquid crystal capsule is disposed in the second pixel spaces, and is configured to generate a preset color under the action of an electric field applied by the third electrode and the fourth electrode and display the color through the fourth electrode and the third substrate.
In an embodiment, the second liquid crystal capsule includes a second core material and a second wall material, the second core material is used for changing the color of incident light and controlling the light quantity of the incident light to form preset color light, the second wall material is used for moving under the action of an electric field to draw the second liquid crystal capsule to be close to the third substrate, and the second core material of the second liquid crystal capsule includes a chiral agent for changing the light transmission quantity of the color mixed liquid crystal, the color mixed liquid crystal for controlling the light color and ionized water for dispersing the color mixed liquid crystal; the second wall material includes a diisocyanate.
In an embodiment, the second pixel space further comprises a second class of electrophoretic particles, the second class of electrophoretic particles comprising at least one color of the second liquid crystal capsules and a second charging medium.
In an embodiment, the second liquid crystal capsules include a plurality of the second liquid crystal capsules respectively exhibiting different colors, and the second liquid crystal capsules of the respective colors are equal in number.
The application also provides a display, which comprises the double-sided display screen, an outer frame, a circuit board and a power supply, wherein the double-sided display screen, the circuit board and the power supply are accommodated in the outer frame, and the circuit board and the power supply are electrically connected with the double-sided display screen and are respectively used for providing control signals and working voltages for the double-sided display screen.
According to the double-sided display screen provided by the application, the first color matching layer and the second color matching layer are used for carrying out light quantity adjustment and color control on incident light transmitted through the first substrate and the third substrate, so that light reflected by the first substrate and the third substrate generates preset colors according to the first color matching layer and the second color matching layer, wherein the first liquid crystal capsule and the second liquid crystal capsule filled in the first color matching layer and the second color matching layer comprise a first core material and a second core material with colors, and the first liquid crystal capsule and the second liquid crystal capsule have the function of controlling the light quantity and can endow reflected light with different colors. The double-sided color development effect can be achieved by only using two color matching layers and three substrates, at least six components such as backlight sources, polaroids and color filters of two displays in a double-sided display screen structure in the prior art are omitted, and only power consumption of one display is needed to be connected, so that the double-sided display screen is lighter and thinner, power consumption is lower, and production and manufacturing costs are reduced. In addition, the application adopts natural light as an incident light source, and the natural light reflected to human eyes is soft and has no damage to human bodies.
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, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a conventional dual-sided display.
Fig. 2 is a schematic cross-sectional view of a dual-sided display screen according to a first embodiment of the present application.
Fig. 3 is a schematic structural diagram of the first pixel layer in fig. 1.
Fig. 4 is a schematic structural diagram of the first liquid crystal capsule in fig. 1.
Fig. 5 is a schematic cross-sectional view of a dual-sided display screen in a second embodiment of the present application.
Fig. 6 is a schematic structural diagram of the first type of electrophoretic particles in fig. 5.
Fig. 7 is a schematic structural diagram of the second type of electrophoretic particles in fig. 5.
Detailed Description
Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms described above will be understood to those of ordinary skill in the art in a specific context.
The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and the like are used as references to orientations or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is conventionally disposed in use, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore are not to be construed as limiting the application.
The terms "first," "second," "third," and the like, are merely used for distinguishing between similar elements and not necessarily for indicating or implying a relative importance or order.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements does not include only those elements but may include other elements not expressly listed.
First embodiment
Referring to fig. 2, the present application provides a dual-sided display screen, including: a first color matching layer 10, a second color matching layer 20, a first substrate 30, a second substrate 40 and a third substrate 50; the first substrate 30, the first color matching layer 10, the second substrate 40, the second color matching layer 20 and the third substrate 50 are sequentially stacked, and the first substrate 30, the second substrate 40 and the third substrate 50 are all transparent materials, preferably glass materials, and can transmit visible light of 380-780 nm.
The first and second color matching layers 10 and 20 are used to display different colors, respectively, and the first and third substrates 30 and 50 are used to receive incident light and reflect light passing through the first and second color matching layers 10 and 20 to process the transmitted light and the filtered color, so that the light irradiated onto the first and third substrates 30 and 50 from the outside exhibits colors corresponding to the first and second color matching layers 10 and 20 when reflected by the first and third substrates 30 and 50, respectively.
Referring to fig. 3, in the present embodiment, the first color matching layer 10 includes a first electrode 60, a second electrode 70, and a first pixel layer 101 sandwiched between the first electrode 60 and the second electrode 70, the first pixel layer 101 includes a plurality of first pixel spaces 11 arranged in an array, and a retaining wall is disposed between two first pixel spaces 11 arranged in a row. The first pixel space 11 is provided therein with a first liquid crystal capsule 111 for generating a predetermined color and displaying through the first electrode 60 and the first substrate 30 under the electric field applied by the first electrode 60 and the second electrode 70.
Specifically, the first electrode 60 and the second electrode 70 are relatively abutted against both sides of the first pixel layer 101, respectively, and when a voltage is applied to the first electrode 60 and the second electrode 70, the first pixel layer 101 has an electric field. The first liquid crystal capsules 111 in the first pixel layer 101 are controlled by the magnitude of the voltage applied between the first electrode 60 and the second electrode 70, for example, the first liquid crystal capsules 111 approach the first substrate 30 at a voltage value ranging preferably from 0 to 10V applied between the first electrode 60 and the second electrode 70.
Referring to fig. 4, the first liquid crystal capsule 111 includes a first core material 111A and a first wall material 111B, wherein a second core material 211A is filled in the first wall material 111B, wherein the second core material 211A has the functions of changing the color of transmitted light and controlling the transmission amount of light, the natural light emitted from the first substrate 30 forms light with a predetermined color, and the first wall material 111B moves under the action of a certain electric field, so as to pull a certain type of first liquid crystal capsule 111 to be gathered on one side of the first pixel layer 101 close to the first substrate 30.
In order to achieve the effect of thinning the double-sided display screen, the application provides the first core material 111A of the first liquid crystal capsule 111 with the functions of filtering light color and controlling the transmitted light quantity while removing the color filtering film and the polaroid, and specifically comprises color mixed liquid crystal, chiral agent and ionized water for preparing the first core material 111A, wherein the color mixed liquid crystal is prepared by a transparent liquid crystal through a dyeing process (the dyeing process is known in the technical field, and will not be described in detail in order to avoid redundancy), the color mixed liquid crystal contains nematic liquid crystal and color dye, the nematic liquid crystal can not transmit light under the interference of environment or other substances, and the chiral agent can induce the nematic liquid crystal to form cholesteric phase or chiral phase liquid crystal due to chiral groups, induce the liquid crystal molecules to form spiral arrangement, and the change of pitch occurs. In addition, the ionized water is used for dispersing the color mixed liquid crystal and the chiral agent, and is beneficial to the movement of the color mixed liquid crystal and the chiral agent.
The first wall material 111B is preferably a voltage sensitive material, in this embodiment diisocyanate is used, and the surface of the first wall material 111B is charged, so that when an electric field is applied between the first electrode 60 and the second electrode 70, the first liquid crystal capsule 111 is pulled to move according to the magnitude of the electric field.
The first pixel layer 101 includes a plurality of first liquid crystal capsules 111 respectively exhibiting different colors, preferably red, blue, green, black and transparent colors in this embodiment, the first liquid crystal capsules 111 with red, blue and green may exhibit infinite colors according to different ratios thereof, and the number of the first liquid crystal capsules 111 filled in the first pixel layer 101 of each color is equal; in addition, the first liquid crystal capsules 111 with different colors adopt the first wall materials 111B with different charges, and the types and the amounts of the charges on the surfaces of the first liquid crystal capsules 111 with different colors are different.
Specifically, each first pixel space 11 is divided into five pixel units in equal parts, the five pixel units are sequentially arranged in a direction perpendicular to the first substrate 30, each unit is filled with the first liquid crystal capsule 111 of a single color, and the color of the first liquid crystal capsule 111 in each unit is not repeated. The first substrate 30 reflects light of a corresponding color according to the color of the first liquid crystal capsule 111 filled in the pixel unit adjacent to the first substrate 30.
When the voltage values between the first electrode 60 and the second electrode 70 are 0V, 2V, 4V, 7V, 10V, the first electrode 60 attracts the first liquid crystal capsules 111 of a single one of the colors therein to be gathered at the side of the first pixel layer 101 near the first substrate 30.
Specifically, when the first electrode 60 and the second electrode 70 are subjected to a voltage, if the optical axis is perpendicular to the electric field direction between the first electrode 60 and the second electrode 70, the first pixel layer 101 cannot transmit light, and the first substrate 30 cannot reflect light, and at this time, the first substrate 30 displays black; when the optical axis is perpendicular to the electric field direction between the third electrode 80 and the fourth electrode 90 under a certain voltage, the second pixel layer 201 can completely transmit light, and the light is completely transmitted but not absorbed, so that the first substrate 30 displays white; when different preset voltages are applied to the first electrode 60 and the second electrode 70, different amounts of light can be transmitted according to the electric field, meanwhile, the different amounts of light are filtered by the color mixed liquid crystal, light with partial wave bands is absorbed, light with various colors can be displayed on the first substrate 30, and the amount of chiral agent determines the reflective color of the cholesteric liquid crystal.
In the present embodiment, the second color matching layer 20 includes a third electrode 80, a fourth electrode 90, and a second pixel layer 201 sandwiched between the third electrode 80 and the fourth electrode 90, the second pixel layer 201 includes a plurality of second pixel spaces 21 arranged in an array, and a retaining wall is provided between two second pixel spaces 21 arranged in a row. The second pixel space 21 is provided with a second liquid crystal capsule 211 for generating a predetermined color and displaying through the third electrode 80 and the third substrate 50 under the electric field applied from the third electrode 80 and the fourth electrode 90.
Specifically, the third electrode 80 and the fourth electrode 90 are relatively abutted against both sides of the second pixel layer 201, respectively, and when a voltage is applied to the third electrode 80 and the fourth electrode 90, the second pixel layer 201 has an electric field. The second liquid crystal cell 211 in the second pixel layer 201 is controlled by the magnitude of the voltage applied between the third electrode 80 and the fourth electrode 90, for example, the second liquid crystal cell 211 approaches the third substrate 50 at a voltage value ranging preferably from 0 to 10V applied between the third electrode 80 and the fourth electrode 90.
The second liquid crystal capsule 211 includes a second core material 211A and a second wall material 211B, the second core material 211A is filled in the second wall material 211B, wherein the second core material 211A has the functions of changing the color of transmitted light and controlling the transmission amount of light, natural light injected from the third substrate 50 is formed into light with a preset color, the second wall material 211B moves under the action of a certain electric field, and thus a certain type of second liquid crystal capsule 211 is pulled to be gathered at one side of the second pixel layer 201 close to the third substrate 50.
In order to achieve the effect of thinning the double-sided display screen, the application provides the second core material 211A of the second liquid crystal capsule 211 with the functions of filtering light color and controlling the transmitted light quantity while removing the color filtering film and the polaroid, and specifically comprises color mixed liquid crystal, chiral agent and ionized water for preparing the second core material 211A, wherein the color mixed liquid crystal is transparent liquid crystal and is prepared by dyeing technology (the dyeing technology can be a technical means which is known in the technical field and is not repeated here), the color mixed liquid crystal contains nematic liquid crystal and color dye, the nematic liquid crystal cannot transmit light under the interference of no environment or other substances, and the chiral agent can induce the nematic liquid crystal to form cholesteric phase or chiral phase liquid crystal due to chiral groups, induce the liquid crystal molecules to form spiral arrangement, and the change of pitch occurs. In addition, the ionized water is used for dispersing the color mixed liquid crystal and the chiral agent, and is beneficial to the movement of the color mixed liquid crystal and the chiral agent.
The second wall material 211B is preferably a voltage sensitive material, in this embodiment diisocyanate is used, and the surface of the second wall material 211B is charged, so that when an electric field is applied between the third electrode 80 and the fourth electrode 90, the second liquid crystal capsule 211 is pulled to move according to the magnitude of the electric field.
The second pixel layer 201 includes a plurality of second liquid crystal capsules 211 respectively exhibiting different colors, preferably red, blue, green, black and transparent colors in this embodiment, the second liquid crystal capsules 211 with red, blue and green may exhibit infinite colors according to different ratios thereof, and the number of the second liquid crystal capsules 211 of each color filled in the second pixel layer 201 is equal; in addition, the second wall material 211B with different charges is used for the second liquid crystal capsules 211 with different colors, and the types and the amounts of the charges on the surfaces of the second liquid crystal capsules 211 with different colors are different.
Specifically, each of the second pixel spaces 21 is divided into five pixel units in equal parts, the five pixel units are sequentially arranged in a direction perpendicular to the third substrate 50, each unit is filled with the second liquid crystal capsules 211 of a single color, and the colors of the second liquid crystal capsules 211 in the respective units are not repeated. The third substrate 50 reflects light of a corresponding color according to the color of the second liquid crystal capsules 211 filled in the pixel units adjacent to the third substrate 50.
When the voltage values between the third electrode 80 and the fourth electrode 90 are 0V, 2V, 4V, 7V, 10V, the third electrode 80 attracts the second liquid crystal capsules 211 of a single one of the colors therein to be accumulated on the side of the second pixel layer 201 near the third substrate 50.
Specifically, when the third electrode 80 and the fourth electrode 90 are subjected to a voltage, and the optical axis is perpendicular to the electric field direction between the third electrode 80 and the fourth electrode 90, the second pixel layer 201 cannot transmit light, and the third substrate 50 cannot reflect light, so that the third substrate 50 displays black; when the optical axis is perpendicular to the electric field direction between the third electrode 80 and the fourth electrode 90 under a certain voltage, the second pixel layer 201 can completely transmit light, and the light is completely transmitted but not absorbed, so that the third substrate 50 displays white; when different preset voltages are applied between the third electrode 80 and the fourth electrode 90, different amounts of light can be transmitted according to the electric field, meanwhile, the different amounts of light are filtered by the color mixed liquid crystal, partial wave band light is absorbed, various colors of light can be displayed on the third substrate 50, and the amount of chiral agent determines the reflective color of the cholesteric liquid crystal.
The double-sided display screen comprises the double-sided display screen, wherein the first color matching layer 10 and the second color matching layer 20 can share one driver or can be independently controlled by different drivers, and specifically, the first color matching layer 10 and the second color matching layer 20 can simultaneously display the same picture or can simultaneously display different pictures.
Second embodiment
Referring to fig. 5, the two-sided display screen tangential structure of the present embodiment is similar to that of the first embodiment, except that no retaining wall is provided between two adjacent first pixel spaces 11 or between two adjacent second pixel spaces 21 in the first color matching layer 10 and the second color matching layer 20, and the first liquid crystal capsules 111 or the second liquid crystal capsules 211 are wrapped to form the first type of electrophoretic particles 100 or the second type of electrophoretic particles 200.
Referring to fig. 6, in the present embodiment, the first color matching layer 10 includes a plurality of first type electrophoretic particles 100, each first type electrophoretic particle 100 is formed by a first outer wall 113 and two different color first liquid crystal capsules 111 and a first dielectric 112 contained in the first outer wall 113, and the present embodiment provides 4 color first liquid crystal capsules 111 in total, respectively red, blue, green and black, wherein the first liquid crystal capsules 111 of any two colors form a capsule combination, and each capsule combination containing the two color first liquid crystal capsules 111 is used to form one first type electrophoretic particle 100.
Under the condition that a preset electric field is applied between the first electrode 60 and the second electrode 70 by the first type of electrophoretic particles 100, the first type of electrophoretic particles 100 containing the first liquid crystal capsules 111 with preset colors are close to the first substrate 30 under the driving of the electric field, and meanwhile, the first liquid crystal capsules 111 with preset colors are also close to one side of the first type of electrophoretic particles 100 close to the first substrate 30, so that the first substrate 30 reflects light with preset colors.
Referring to fig. 7, in the present embodiment, the second color matching layer 20 includes a plurality of second type electrophoretic particles 200, each second type electrophoretic particle 200 is formed by a second outer wall 213 and two different color second liquid crystal capsules 211 and a second charging medium 212 contained in the second outer wall 213, and the present embodiment provides 4 color second liquid crystal capsules 211 in total, respectively red, blue, green and black, wherein the second liquid crystal capsules 211 of any two colors form a capsule combination, and each capsule combination containing the two color second liquid crystal capsules 211 is used to form one second type electrophoretic particle 200.
The second type of electrophoretic particles 200 comprises a second liquid crystal capsules 211 and a second charging medium 212.
The second type of electrophoretic particles 200 in the case that a predetermined electric field is applied between the third electrode 80 and the fourth electrode 90, the second type of electrophoretic particles 200 with the second liquid crystal capsules 211 of the predetermined color are adjacent to the third substrate 50, and the second liquid crystal capsules 211 with the predetermined color are also adjacent to one side of the second type of electrophoretic particles 200 adjacent to the first substrate 30, so that the third substrate 50 reflects the light with the predetermined color.
Third embodiment
An embodiment of another aspect of the present application further provides a display, including a dual-sided display screen, an outer frame, a circuit board and a power supply according to the first embodiment or the second embodiment, where the dual-sided display screen, the circuit board and the power supply are accommodated in the outer frame, and the circuit board and the power supply are electrically connected to the dual-sided display screen and are respectively used for providing control signals and working voltages to the dual-sided display screen.
Further, the display may include a plurality of tinting schemes, for example, at least one of the first tinting layer 10 and the second tinting layer 20 is provided by the first embodiment, or at least one of the first tinting layer 10 and the second tinting layer 20 is provided by the second embodiment.
The present application is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (6)
1. A dual sided display screen, comprising: a first color matching layer (10), a second color matching layer (20), a first substrate (30), a second substrate (40) and a third substrate (50); the first substrate (30), the first color matching layer (10), the second substrate (40), the second color matching layer (20) and the third substrate (50) are sequentially stacked; the first and second color matching layers (10, 20) are respectively used for displaying different colors, so that light rays irradiated onto the first and third substrates (30, 50) from the outside respectively show colors corresponding to the first and second color matching layers (10, 20) when being reflected by the first and third substrates (30, 50),
the first color matching layer (10) comprises a first electrode (60), a second electrode (70) and a first pixel layer (101) clamped between the first electrode (60) and the second electrode (70), the first pixel layer (101) comprises a plurality of first pixel spaces (11) which are arranged in an array, a first liquid crystal capsule (111) is arranged in the first pixel spaces (11) and is used for generating preset colors under the action of an electric field applied by the first electrode (60) and the second electrode (70) and displaying the colors through the first electrode (60) and the first substrate (30), the second color matching layer (20) comprises a third electrode (80), a fourth electrode (90) and a second pixel layer (201) clamped between the third electrode (80) and the fourth electrode (90), the second pixel layer (201) comprises a plurality of second pixel spaces (21) which are arranged in an array and are used for generating preset colors under the action of the electric field applied by the first electrode (60) and the second electrode (70), and the second color matching layer (20) comprises a third electrode (80) and a second pixel layer (201) clamped between the third electrode (90), and the second pixel layer (201) is arranged in the array, and the second pixel space (21) is used for generating colors under the action of the third electrode (90) and the fourth electrode (90);
wherein each first pixel space (11) is divided into five first pixel units, the five first pixel units are sequentially arranged along a direction perpendicular to the first substrate (30), each first pixel unit is respectively filled with a single-color first liquid crystal capsule (111), the color of the first liquid crystal capsule (111) in each first pixel unit is not repeated, the first liquid crystal capsule (111) in the five first pixel units is respectively red, blue, green, black and transparent, the first substrate (30) reflects light of a corresponding color according to the color of the first liquid crystal capsule (111) filled in the first pixel unit near the first substrate (30), each second pixel space (21) is divided into five second pixel units, the color of the first liquid crystal capsule (111) in each first pixel unit is not repeated, the first liquid crystal capsule (111) in the five first pixel units is respectively red, blue, green, black and transparent, the first liquid crystal capsule (211) in each second pixel unit is sequentially arranged along a direction perpendicular to the third substrate (50), and the color of the second liquid crystal capsule (211) is respectively filled in the second pixel unit near the second pixel unit (211) is respectively red, the blue, the second liquid crystal capsule (211) is not filled in the second pixel unit near the third substrate (211), and the green and the blue capsule (211) is respectively filled in the second liquid crystal capsule (211) is respectively.
2. The dual-sided display of claim 1, wherein the first liquid crystal capsule (111) includes a first core material (111A) and a first wall material (111B), the first core material (111A) is used for changing the color of the transmitted light and controlling the light quantity of the transmitted light to form a preset color light, and the first wall material (111B) is used for moving under the action of an electric field to draw the first liquid crystal capsule (111) close to the first substrate (30).
3. A dual-sided display screen as claimed in claim 2, characterized in that the first core (111A) of the first liquid crystal capsule (111) comprises a chiral agent for changing the amount of light transmitted by the color mixed liquid crystal, the color mixed liquid crystal for controlling the color of light, and ionized water for dispersing the color mixed liquid crystal; the first wall material (111B) comprises a diisocyanate; the first liquid crystal capsules (111) include a plurality of kinds of the first liquid crystal capsules (111) respectively exhibiting different colors, and the first liquid crystal capsules (111) of the respective colors are equal in number.
4. The dual-sided display of claim 1, wherein the second liquid crystal capsule (211) comprises a second core material (211A) and a second wall material (211B), the second core material (211A) is used for changing the color of the incident light and controlling the light quantity of the incident light to form a preset color light, and the second wall material (211B) is used for moving under the action of an electric field to draw the second liquid crystal capsule (211) to be close to the third substrate (50); the second core material (211A) of the second liquid crystal capsule (211) comprises a chiral agent for changing the light transmission amount of the color mixed liquid crystal, the color mixed liquid crystal for controlling the color of light and ionized water for dispersing the color mixed liquid crystal; the second wall material (211B) includes a diisocyanate.
5. A dual-sided display screen as claimed in claim 1, characterized in that the first liquid crystal capsules (111) of each color are equal in number and the second liquid crystal capsules (211) of each color are equal in number.
6. A display, comprising the dual-sided display screen, an outer frame, a circuit board and a power supply according to any one of claims 1-5, wherein the dual-sided display screen, the circuit board and the power supply are accommodated in the outer frame, and the circuit board and the power supply are electrically connected with the dual-sided display screen and are respectively used for providing control signals and working voltages for the dual-sided display screen.
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| CN201069505Y (en) * | 2007-07-13 | 2008-06-04 | 比亚迪股份有限公司 | Dual-face display |
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