CN111029481A - Display panel, control method thereof and display device - Google Patents
Display panel, control method thereof and display device Download PDFInfo
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- CN111029481A CN111029481A CN201911273089.8A CN201911273089A CN111029481A CN 111029481 A CN111029481 A CN 111029481A CN 201911273089 A CN201911273089 A CN 201911273089A CN 111029481 A CN111029481 A CN 111029481A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 114
- 239000000758 substrate Substances 0.000 claims abstract description 59
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 239000002775 capsule Substances 0.000 claims description 11
- 238000007650 screen-printing Methods 0.000 claims description 5
- 239000006229 carbon black Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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Abstract
The invention discloses a display panel, a control method thereof and a display device, wherein the display panel is provided with a reflection adjusting structure in adjacent sub-pixel regions, and in a display mode, black charged particles are positioned at one side far away from a substrate, namely, a black matrix is formed at the gap of each sub-pixel region, so that the function of shading is achieved, and the whole display color cast is adjusted; under the mirror mode, the reflecting charged particles are positioned on one side far away from the substrate, which is equivalent to a reflecting layer at the gap of the sub-pixel and forms a whole reflecting layer together with the reflecting electrode in the sub-pixel area to reflect the external natural light.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a control method thereof and a display device.
Background
With the development of display technology, display panels integrated with multiple functions are widely used, for example, display panels integrated with mirror functions are widely used in smart homes, commercial displays and other fields.
Mirror surface display panel among the correlation technique, including the base plate, cathode reflection layer, luminescent layer and anode layer that lie in this base plate in proper order set up the mirror surface reflection layer of whole face in one side that light emitting device deviates from the base plate to realize the function of mirror surface in non-display stage, however, this light emitting device's cathode layer is the reflection stratum, when external natural light shines on this cathode reflection stratum, can reflect external natural light, leads to reflecting inhomogeneous problem under the mirror surface mode. In order to eliminate the reflection of the cathode reflecting layer to natural light, a circular polarizer is arranged between the light-emitting device and the mirror reflecting layer to counteract the natural light reflected by the cathode reflecting layer. However, the arrangement of the circular polarizer greatly reduces the transmittance of the display panel, which affects the display quality.
Therefore, it is an urgent technical problem to be solved by those skilled in the art how to improve the transmittance of the display panel while ensuring the reflection uniformity in the mirror mode.
Disclosure of Invention
Embodiments of the present invention provide a display panel, a control method thereof and a display apparatus, which are used to improve transmittance of the display panel while ensuring reflection uniformity in a mirror mode.
In a first aspect, an embodiment of the present invention provides a display panel, including: the array substrate comprises a substrate base plate and a plurality of sub-pixel areas, wherein the sub-pixel areas are positioned on the substrate base plate and comprise a reflecting electrode, a light-emitting layer and a transparent electrode which are sequentially positioned on the substrate base plate; further comprising: a reflection adjusting structure located between adjacent sub-pixel regions;
the reflection adjustment structure includes: the charge layer is positioned between the first electrode and the second electrode; wherein at least the second electrode is a transparent electrode;
the charge layer includes: the charged particles of the black matrix and the charged particles of the reflective matrix have opposite polarities;
the charge layer is configured to control the black charged particles to be located at a side far from the substrate base plate and the reflective charged particles to be located at a side close to the substrate base plate under the control of the first electrode and the second electrode in a display mode;
in the mirror mode, under the control of the first electrode and the second electrode, the reflective charged particles are controlled to be positioned at the side far away from the substrate base plate, and the black charged particles are controlled to be positioned at the side close to the substrate base plate.
In one possible implementation manner, in the display panel provided by the embodiment of the invention, the charge layer includes a plurality of capsule structures;
each of the capsule structures includes a plurality of the black charged particles, a plurality of the reflective charged particles, and a dispersion liquid for dispersing the black charged particles and the reflective charged particles.
In one possible implementation manner, in the display panel provided in the embodiment of the present invention, the black charged particles are carbon black particles, and a reflective layer is coated on a surface of the reflective charged particles.
In one possible implementation manner, in the display panel provided in the embodiment of the present invention, the charge layer is formed by screen printing.
In one possible implementation manner, in the display panel provided by the embodiment of the present invention, the black charged particles are negatively charged, and the reflective charged particles are positively charged.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the first electrode and the reflective electrode are disposed in the same layer, and the second electrode and the transparent electrode are disposed in the same layer.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, both the first electrode and the second electrode are transparent electrodes.
In a second aspect, an embodiment of the present invention further provides a method for controlling a display panel, including:
when the display mode is switched, a first voltage is applied to the first electrode, a second voltage is applied to the second electrode, the black charged particles are controlled to move to the side far away from the substrate base plate, and the reflective charged particles move to the side close to the substrate base plate;
when the mirror mode is switched, the second voltage is applied to the first electrode, the first voltage is applied to the first electrode, the reflective charged particles are controlled to move to the side far away from the substrate base plate, and the black charged particles move to the side near the substrate base plate.
In a possible implementation manner, in the control method of the display panel according to the embodiment of the present invention, when the black charged particles are negatively charged and the reflective charged particles are positively charged, the first voltage is a negative voltage, and the second voltage is a positive voltage.
In a third aspect, an embodiment of the present invention further provides a display device, where the display device includes the display panel provided in any embodiment of the first aspect.
The invention has the beneficial effects that:
the embodiment of the invention provides a display panel, a control method thereof and a display device, wherein the display panel comprises: the array substrate comprises a substrate base plate and a plurality of sub-pixel areas, wherein the sub-pixel areas are positioned on the substrate base plate and comprise a reflecting electrode, a light-emitting layer and a transparent electrode which are sequentially positioned on the substrate base plate; further comprising: a reflection adjusting structure located between adjacent sub-pixel regions; the reflection adjustment structure includes: the charge layer is positioned between the first electrode and the second electrode; wherein at least the second electrode is a transparent electrode; the charge layer includes: the charged particles of the black matrix and the charged particles of the reflective matrix have opposite polarities. By arranging the reflection adjusting structure in the adjacent sub-pixel regions, under the display mode, the black charged particles are positioned at one side far away from the substrate, namely, a black matrix is formed at the gap of each sub-pixel region, so that the shading effect is achieved, and the whole display color cast is adjusted; under the mirror mode, the reflecting charged particles are positioned on one side far away from the substrate, which is equivalent to a reflecting layer at the gap of the sub-pixel and forms a whole reflecting layer together with the reflecting electrode in the sub-pixel area to reflect the external natural light.
Drawings
FIG. 1 is a schematic structural diagram of a display panel in the related art;
FIG. 2 is a second schematic structural diagram of a display panel in the related art;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel in a display mode according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel in a mirror mode according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a reflection adjustment structure according to an embodiment of the present invention.
Detailed Description
The display panel in the related art, as shown in fig. 1, includes: the display panel comprises a substrate 01, a cathode reflection layer 02, a light emitting layer 03 and an anode layer 04 which are sequentially arranged on the substrate 01, wherein in order to enable the display panel to have a mirror function, the anode layer 04 is further provided with a mirror reflection layer 05 on the side away from the substrate 01 to reflect natural light. However, the cathode reflective layer 02 also has a high reflectance and has a certain reflection effect on the external natural light, and in the mirror mode, the light reflected by the cathode reflective layer 02 and the light reflected by the mirror reflective layer 05 are superimposed, which causes uneven intensity of the reflected light in each region and affects the use effect of the mirror mode. The provision of the specular reflection layer 05 reflects light emitted from the light-emitting layer 03 to a certain degree, and reduces the transmittance of the display panel in the display mode.
In the related art, in order to eliminate reflection of the cathode reflective layer 02 to natural light, as shown in fig. 2, a circular polarizer (including a λ/4 wave plate 06 and a polarizer 07) is disposed between the specular reflective layer 05 and the anode layer 04, natural light in a display region is converted into linearly polarized light after passing through the polarizer 07, the linearly polarized light passes through the λ/4 wave plate 06 region and is converted into circularly polarized light, the circularly polarized light is reflected by the cathode reflective layer 02 and is converted into inversely polarized light by polarization, the inversely polarized light passes through the λ/4 wave plate 06 region and is converted into linearly polarized light, and at this time, the linearly polarized light is vertically incident in the polarization direction and is absorbed when passing through the polarizer 07, so that the specular reflection elimination of the cathode reflective layer. However, the provision of the circular polarizer greatly increases the thickness of the display panel and further decreases the transmittance of the display panel.
Based on the above problems of the display panel in the related art, embodiments of the present invention provide a display panel, a control method thereof, and a display device. In order to make the objects, technical solutions and advantages of the present invention clearer, specific embodiments of a display panel, a control method thereof and a display device according to an embodiment of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments described below are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
Specifically, an embodiment of the present invention provides a display panel, as shown in fig. 3, including: a substrate 1, a plurality of sub-pixel regions a located on the substrate 1, the sub-pixel regions a including a reflective electrode 21, a light-emitting layer 22 and a transparent electrode 23 located on the substrate 1 in sequence; further comprising: a reflection adjusting structure located between adjacent sub-pixel regions A;
the reflection adjusting structure includes: a first electrode 31, a second electrode 32 and a charge layer 33 between the first electrode 31 and the second electrode 32 which are sequentially arranged on the substrate base plate 1; wherein at least the second electrode 32 is a transparent electrode;
the charge layer 33 includes: the black charged particles a and the reflective charged particles b are opposite in polarity;
the charge layer 33 is configured to control the black charged particles a to be located at a side far from the substrate base plate 1 and the reflective charged particles b to be located at a side close to the substrate base plate 1 under the control of the first electrode 31 and the second electrode 32 in the display mode;
in the mirror mode, the reflective charged particles b are controlled to be located on the side away from the base substrate 1 and the black charged particles a are controlled to be located on the side close to the base substrate 1 under the control of the first electrode 31 and the second electrode 32.
Specifically, in the display panel provided by the embodiment of the present invention, the reflection adjustment structure is disposed in the adjacent sub-pixel regions, so that the black charged particles are located at a side away from the substrate in the display mode, that is, a black matrix is formed at the gap between the sub-pixel regions, thereby performing a light-shielding function and adjusting the overall display color shift; under the mirror mode, the reflecting charged particles are positioned on one side far away from the substrate, which is equivalent to a reflecting layer at the gap of the sub-pixel and forms a whole reflecting layer together with the reflecting electrode in the sub-pixel area to reflect the external natural light.
The charge layer includes charged black particles, charged reflective particles, and a dispersant, and the charged black particles and the charged reflective particles have opposite polarities, that is, the charged black particles are negatively charged when the charged black particles are positively charged, and the charged reflective particles are positively charged when the charged black particles are negatively charged. The black charged particles and the reflective charged particles are uniformly distributed in the dispersant without applying any voltage to the first electrode and the second electrode.
Taking the example that the reflective charged particles are positively charged when the black charged particles are negatively charged as an example, as shown in fig. 4, when a positive voltage is applied to the first electrode 31 and a negative voltage is applied to the second electrode 32, according to the principle of opposite attraction of charges, the black charged particles a move toward the first electrode 31 and the reflective charged particles b move toward the second electrode 32, so that the reflective charged particles b are finally located on the side away from the substrate 1 and the black charged particles a are located on the side close to the substrate 1, that is, the mirror mode is realized;
as shown in fig. 5, when the mirror mode needs to be switched to the display mode, the voltages applied by the first electrode 31 and the second electrode 32 need to be switched, that is, a negative voltage is applied to the first electrode 31, a positive voltage is applied to the second electrode 32, the black charged particles a move toward the second electrode 32, the reflective charged particles b move toward the first electrode 31, and finally the reflective charged particles b are located on the side close to the substrate 1, and the black charged particles a are located on the side away from the substrate 1.
Specifically, corresponding voltages need to be applied to the first electrode and the second electrode only when mode switching is performed, and voltages do not need to be applied to the first electrode and the second electrode when one mode is maintained, so that the energy consumption of the display panel is greatly reduced.
Alternatively, in the display panel provided in the embodiment of the present invention, as shown in fig. 6, the charge layer 33 includes a plurality of capsule structures 331;
each capsule structure 331 includes a plurality of black charged particles a, a plurality of reflective charged particles b, and a dispersion liquid for dispersing the black charged particles a and the reflective charged particles b.
Specifically, in the display panel provided by the embodiment of the present invention, a plurality of black charged particles and reflective charged particles are encapsulated in capsule structures, wherein each of the charged particles in each of the capsule structures is electrically neutral. In fig. 6, it is illustrated that the charged black particles a and the charged reflective particles b have a negative charge, that is, the number of the charged black particles a and the charged reflective particles b in each capsule structure 331 is equal. Of course, each black charged particle or each reflective charged particle may also be charged more than once, as long as each capsule structure is guaranteed to be electrically neutral, and is not particularly limited herein. When forming the charge layer, a capsule structure prepared in advance may be formed at a corresponding position.
Optionally, in the display panel provided in the embodiment of the present invention, the black charged particles are carbon black particles, and a reflective layer is coated on a surface of the reflective charged particles.
Specifically, in the display panel provided by the embodiment of the present invention, the carbon black particles are selected as the black charged particles, so that light at the gap between the sub-pixel regions can be shielded in the display mode, and crosstalk between the sub-pixels can be prevented. The surface of the reflective charged particles is coated with a reflective layer to increase the reflectivity of the reflective charged particles, and light at the gaps between the sub-pixel regions is reflected in the mirror mode. Of course, the black charged particles and the reflective charged particles may be implemented in other ways, which are within the scope of the present invention and are not limited herein.
Alternatively, in the display panel provided in the embodiment of the present invention, the charge layer may be formed by screen printing.
Specifically, in the display panel provided by the embodiment of the present invention, the charge layer is manufactured by using screen printing, because the manufacturing method of the screen printing process is easy, the printing equipment is simple, and the charge layer is conveniently formed with a good copying effect. Of course, other processes may be used to form the charge layer, and is not limited herein.
Optionally, in the display panel provided in the embodiment of the present invention, the black charged particles are negatively charged, and the reflective charged particles are positively charged.
Specifically, in the display panel provided in the embodiment of the present invention, the black charged particles may be negatively charged, and the reflective charged particles may be positively charged, or the black charged particles and the reflective charged particles may be negatively charged, and the setting is performed according to the actual use condition, and is not limited specifically herein.
Optionally, in the display panel provided in the embodiment of the present invention, the first electrode and the reflective electrode are disposed in the same layer, and the second electrode and the transparent electrode are disposed in the same layer.
Specifically, in the display panel provided in the embodiment of the present invention, the first electrode and the reflective electrode are disposed on the same layer, that is, the first electrode and the reflective electrode can be formed by the same manufacturing process, so that the first electrode and the reflective electrode are made of the same material; in the same way, the second electrode and the transparent electrode can be arranged on the same layer, that is, the second electrode and the transparent electrode are formed by the same preparation process, so that the second electrode and the reflective electrode are made of the same material. The arrangement mode can simplify the preparation process flow and save the production cost.
Optionally, in the display panel provided in the embodiment of the present invention, both the first electrode and the second electrode are transparent electrodes.
Specifically, in the display panel provided in the embodiment of the present invention, both the first electrode and the second electrode may be transparent electrodes, and when both the first electrode and the second electrode are transparent electrodes, the reflection adjusting structure may be in the same layer as the light emitting device or on the light emitting device, which is not limited herein.
Based on the same inventive concept, an embodiment of the present invention further provides a control method for a display panel, including:
when the display mode is switched, a first voltage is applied to the first electrode, a second voltage is applied to the second electrode, the black charged particles are controlled to move to the side far away from the substrate base plate, and the reflective charged particles move to the side close to the substrate base plate;
when the mirror mode is switched, a second voltage is applied to the first electrode, a first voltage is applied to the first electrode, the reflective charged particles are controlled to move to the side far away from the substrate base plate, and the black charged particles move to the side close to the substrate base plate.
Optionally, in the control method of the display panel provided in the embodiment of the present invention, when the black charged particles are negatively charged and the reflective charged particles are positively charged, the first voltage is a negative voltage, and the second voltage is a positive voltage.
The control method of the display panel provided by the embodiment of the present invention has all the advantages of the display panel provided by the above embodiments, and the principle and the specific implementation thereof have been described in detail in the embodiments of the display panel, and can be implemented by referring to the embodiments of the display panel, which are not described herein again.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, which includes the display panel provided in any of the above embodiments.
Wherein, this display device can be for intelligent fitting mirror etc. uses in the market or intelligent house in the middle, shows mural painting or video when the display mode, as the fitting mirror when the mirror surface mode to the realization carries out multiple utilization to this kind of display device.
The embodiment of the invention provides a display panel, a control method thereof and a display device, wherein the display panel comprises: the array substrate comprises a substrate base plate and a plurality of sub-pixel areas, wherein the sub-pixel areas are positioned on the substrate base plate and comprise a reflecting electrode, a light-emitting layer and a transparent electrode which are sequentially positioned on the substrate base plate; further comprising: a reflection adjusting structure located between adjacent sub-pixel regions; the reflection adjustment structure includes: the charge layer is positioned between the first electrode and the second electrode; wherein at least the second electrode is a transparent electrode; the charge layer includes: the charged particles of the black matrix and the charged particles of the reflective matrix have opposite polarities. By arranging the reflection adjusting structure in the adjacent sub-pixel regions, under the display mode, the black charged particles are positioned at one side far away from the substrate, namely, a black matrix is formed at the gap of each sub-pixel region, so that the shading effect is achieved, and the whole display color cast is adjusted; under the mirror mode, the reflecting charged particles are positioned on one side far away from the substrate, which is equivalent to a reflecting layer at the gap of the sub-pixel and forms a whole reflecting layer together with the reflecting electrode in the sub-pixel area to reflect the external natural light.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A display panel, comprising: the array substrate comprises a substrate base plate and a plurality of sub-pixel areas, wherein the sub-pixel areas are positioned on the substrate base plate and comprise a reflecting electrode, a light-emitting layer and a transparent electrode which are sequentially positioned on the substrate base plate; further comprising: a reflection adjusting structure located between adjacent sub-pixel regions;
the reflection adjustment structure includes: the charge layer is positioned between the first electrode and the second electrode; wherein at least the second electrode is a transparent electrode;
the charge layer includes: the charged particles of the black matrix and the charged particles of the reflective matrix have opposite polarities;
the charge layer is configured to control the black charged particles to be located at a side far from the substrate base plate and the reflective charged particles to be located at a side close to the substrate base plate under the control of the first electrode and the second electrode in a display mode;
in the mirror mode, under the control of the first electrode and the second electrode, the reflective charged particles are controlled to be positioned at the side far away from the substrate base plate, and the black charged particles are controlled to be positioned at the side close to the substrate base plate.
2. The display panel of claim 1, wherein the charge layer comprises a plurality of capsule structures;
each of the capsule structures includes a plurality of the black charged particles, a plurality of the reflective charged particles, and a dispersion liquid for dispersing the black charged particles and the reflective charged particles.
3. The display panel according to claim 2, wherein the black charged particles are carbon black particles, and a reflective layer is coated on a surface of the reflective charged particles.
4. The display panel according to claim 2, wherein the charge layer is formed by screen printing.
5. The display panel of claim 1, wherein the black colored charged particles are negatively charged and the reflective charged particles are positively charged.
6. The display panel according to any one of claims 1 to 5, wherein the first electrode and the reflective electrode are disposed in the same layer, and wherein the second electrode and the transparent electrode are disposed in the same layer.
7. The display panel according to any one of claims 1 to 5, wherein the first electrode and the second electrode are both transparent electrodes.
8. A control method of the display panel according to any one of claims 1 to 7, comprising:
when the display mode is switched, a first voltage is applied to the first electrode, a second voltage is applied to the second electrode, the black charged particles are controlled to move to the side far away from the substrate base plate, and the reflective charged particles move to the side close to the substrate base plate;
when the mirror mode is switched, the second voltage is applied to the first electrode, the first voltage is applied to the first electrode, the reflective charged particles are controlled to move to the side far away from the substrate base plate, and the black charged particles move to the side near the substrate base plate.
9. The method of claim 8, wherein when the black charged particles are negatively charged and the reflective charged particles are positively charged, the first voltage is a negative voltage and the second voltage is a positive voltage.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 7.
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| CN201911273089.8A CN111029481A (en) | 2019-12-12 | 2019-12-12 | Display panel, control method thereof and display device |
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| CN201911273089.8A CN111029481A (en) | 2019-12-12 | 2019-12-12 | Display panel, control method thereof and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987440A (en) * | 2021-02-24 | 2021-06-18 | 合肥京东方光电科技有限公司 | Display panel, display method thereof and display device |
| CN114019713A (en) * | 2021-06-16 | 2022-02-08 | 重庆康佳光电技术研究院有限公司 | Light-emitting component, display screen and manufacturing method of light-emitting component |
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| CN114019713A (en) * | 2021-06-16 | 2022-02-08 | 重庆康佳光电技术研究院有限公司 | Light-emitting component, display screen and manufacturing method of light-emitting component |
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