CN112099284B - Display panel, display method thereof and display device - Google Patents
Display panel, display method thereof and display device Download PDFInfo
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- CN112099284B CN112099284B CN202011054906.3A CN202011054906A CN112099284B CN 112099284 B CN112099284 B CN 112099284B CN 202011054906 A CN202011054906 A CN 202011054906A CN 112099284 B CN112099284 B CN 112099284B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 239000002245 particle Substances 0.000 claims description 86
- 230000031700 light absorption Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- -1 copper nitride Chemical class 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
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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
- G02F1/17—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
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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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
Abstract
The invention provides a display panel, a display method thereof and a display device, wherein the display panel comprises the following components: a display substrate configured to implement transmissive or reflective display; the light adjusting structure is arranged on the light emitting side of the display substrate and is configured to transmit or absorb emergent light or incident light of the display substrate under voltage control so as to enable the display panel to display a bright state or a dark state. The display panel, the display method and the display device provided by the invention can better realize anti-reflection display.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a display method thereof and a display device.
Background
In an Organic Light-Emitting Diode (OLED) display technology, a circular polarizer is usually disposed in a display module, and the circular polarizer has the functions of reducing the reflection of the surface of the OLED and improving the contrast ratio. However, the transmittance of the polarizer is relatively low, so that the light-emitting efficiency of the OLED is reduced.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide a display panel, a display method thereof, and a display device.
In view of the above object, a first aspect of an embodiment of the present invention provides a display panel, including:
a display substrate configured to implement transmissive or reflective display;
the light adjusting structure is arranged on the light emitting side of the display substrate and is configured to transmit or absorb emergent light or incident light of the display substrate under voltage control so as to enable the display panel to display a bright state or a dark state.
Optionally, the light adjusting structure comprises a first transparent electrode layer, a second transparent electrode layer and a light absorbing particle layer, wherein the light absorbing particle layer comprises movable light absorbing particles; the first transparent electrode layer and/or the second transparent electrode layer is configured to adsorb the light absorbing particles under voltage control.
Optionally, the first transparent electrode layer includes transparent electrodes arranged in an array or at intervals, and hollow parts are formed between adjacent transparent electrodes; the transparent electrode is configured to adsorb the light absorption particles under voltage control so as to enable emergent light rays of the display substrate to emerge from the hollowed-out part.
Optionally, the second transparent electrode layer includes a transparent planar electrode; the transparent planar electrode is configured to adsorb the light absorbing particles under voltage control so that outgoing light rays and/or incoming light rays of the display substrate are absorbed by the light absorbing particles.
Optionally, the light absorbing particle layer is disposed between the first transparent electrode layer and the second transparent electrode layer.
Optionally, the light absorbing particles are black charged particles.
Optionally, the display substrate is an organic electroluminescent diode display substrate.
Optionally, the anode layer in the organic electroluminescent diode display substrate is capable of reflecting ambient light incident via the light modulating structure.
In a second aspect of the embodiment of the present invention, a display device is provided, including the display panel described in the first aspect.
In a third aspect of the embodiment of the present invention, there is provided a display method, including:
controlling the display substrate to perform transmission display or reflection display;
and controlling the light ray adjusting structure to transmit or absorb the emergent light ray or the incident light ray of the display substrate so as to enable the display panel to display a bright state or a dark state.
Optionally, the light adjusting structure comprises a first transparent electrode layer, a second transparent electrode layer and a light absorbing particle layer, wherein the light absorbing particle layer comprises movable light absorbing particles; the first transparent electrode layer comprises transparent electrodes which are arranged in an array or at intervals, and hollowed-out parts are formed between adjacent transparent electrodes; the second transparent electrode layer comprises a transparent planar electrode;
the display method comprises the following steps:
controlling the transparent electrode to adsorb the light absorption particles so that emergent rays of the display substrate are emergent from the hollowed-out part; or,
and controlling the transparent planar electrode to adsorb the light-absorbing particles so that emergent light rays and/or incident light rays of the display substrate are absorbed by the light-absorbing particles.
As can be seen from the above, the display panel, the display method and the display device provided by the embodiments of the present invention utilize the light adjusting structure to realize light adjustment, so that better anti-reflection display can be realized without using a polarizer, and the thickness of the display module is reduced as a whole, and the polarizer is not required to be arranged, so that the influence of the polarizer on the light efficiency is reduced, and the cost is reduced.
In addition, when the OLED displays, the OLED can realize reflective display, external environment light is reflected out through the OLED anode layer, the outdoor readability of the OLED is enhanced, and the luminous brightness of the OLED is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that 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 an embodiment of a display panel according to an embodiment of the present invention;
fig. 2A is a schematic diagram illustrating an exemplary operation principle of a display panel according to an embodiment of the present invention;
fig. 2B is a schematic diagram illustrating an exemplary operation principle of a display panel according to an embodiment of the present invention;
fig. 3A is a schematic diagram illustrating an exemplary operation principle of a display panel according to an embodiment of the present invention;
fig. 3B is a schematic diagram illustrating an exemplary operation principle of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another embodiment of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another embodiment of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating an exemplary operation principle of a display panel according to an embodiment of the present invention;
fig. 7 is a flowchart of an embodiment of a display method according to an embodiment of the present invention.
Detailed Description
The present invention will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent.
It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Fig. 1 is a schematic structural diagram of an embodiment of a display panel according to an embodiment of the present invention.
As shown in fig. 1, the display panel includes:
the display substrate 10 is configured to realize a transmissive or reflective display.
The light adjusting structure 20 is disposed on the light emitting side of the display substrate 10.
If the display substrate 10 is configured to implement transmissive display, the light adjusting structure 20 is configured to: transmitting the outgoing light of the display substrate (as shown by the arrow in fig. 2A) or absorbing the outgoing light of the display substrate (as shown by the arrow in fig. 2B) under voltage control, so that the display panel displays a bright state or a dark state.
If the display substrate 10 is configured to implement reflective display, the light adjusting structure 20 is configured to: the incident light and the emergent light of the display substrate (as shown by the arrow in fig. 3A) are transmitted or the incident light of the display substrate (as shown by the arrow in fig. 3B) is absorbed under the voltage control, so that the display panel displays a bright state or a dark state.
In some embodiments, as shown in fig. 1, the light-modulating structure 20 includes a first transparent electrode layer 21, a second transparent electrode layer 22, and a light-absorbing particle layer 23, where the light-absorbing particle layer 23 includes movable light-absorbing particles 231; the first transparent electrode layer 21 and the second transparent electrode layer 22 are configured to adsorb the light absorbing particles under voltage control. In some embodiments, as shown in fig. 1, the light adjusting structure 20 further includes a first substrate 24, the second transparent electrode layer 22 is disposed on the first substrate 24, and no polarizer (e.g. a circular polarizer) is disposed between the second transparent electrode layer 22 and the first substrate 24, so that the outgoing light or the incoming light is not absorbed by the polarizer, and the light efficiency is not lost due to the polarizer, so that the light efficiency can be greatly improved, and in addition, the external ambient light can be utilized, so that the overall light brightness of the display panel is improved. Alternatively, the first substrate 24 may be made of a material with high transmittance and low reflectivity, so as to reduce reflection of light thereon, thereby facilitating anti-reflection display.
The light absorbing particles 231 may be charged particles, for example, if the charged particles are positive particles, the first and second transparent electrode layers 21 and 22 may apply a negative voltage to adsorb the charged particles, and if the charged particles are negative particles, the first and second transparent electrode layers 21 and 22 may apply a positive voltage to adsorb the charged particles.
In some embodiments, the light absorbing particles 231 are black charged particles, so that the light passing through the light absorbing particles 231 is absorbed by the black charged particles and cannot pass through the light absorbing particles, and thus the light absorbing effect is achieved by controlling the position of the light absorbing particles 231, so as to realize bright state or dark state display. Alternatively, the light absorbing particles 231 may be charged black particles used in electronic ink (E-ink), for example.
In some embodiments, as shown in fig. 1, the light absorbing particle layer 23 is disposed between the first transparent electrode layer 21 and the second transparent electrode layer 22. When the light absorbing particle layer 23 is disposed between the first transparent electrode layer 21 and the second transparent electrode layer 22, the first transparent electrode layer 21 and the second transparent electrode layer 22 are adjacent to the light absorbing particle layer 23, so that the absorption effect of the first transparent electrode layer 21 and the second transparent electrode layer 22 on the light absorbing particles 231 is better.
Of course, it is understood that the first transparent electrode layer 21 and the second transparent electrode layer 22 are mainly for adsorbing the light absorbing particles 231, and the relative positional relationship between them and the light absorbing particle layer 23 is not limited to only one implementation, for example, the first transparent electrode layer 21 and the second transparent electrode layer 22 may be disposed on the same side of the light absorbing particle layer 23 (for example, on both light emitting sides of the light absorbing particle layer 23 or on both backlight sides of the light absorbing particle layer 23), so long as the light absorbing particles 231 can be adsorbed.
In some embodiments, as shown in fig. 1, the first transparent electrode layer 21 includes transparent electrodes 211 (for example, may be in a strip shape or a block shape) arranged in an array or at intervals, and hollowed-out portions 212 are formed between adjacent transparent electrodes 211; the transparent electrode 211 is configured to adsorb the light absorbing particles 231 under voltage control so that the outgoing light of the display substrate 10 is outgoing from the hollowed-out portion 212, thereby realizing bright display.
For example, as shown in fig. 2A, the display substrate 10 is configured to implement transmissive display, and the transparent electrode 211 is configured to adsorb the light absorbing particles 231 under voltage control so that the outgoing light of the display substrate 10 is outgoing from the hollowed-out portion 212, thereby implementing bright state display.
For another example, as shown in fig. 3A, the display substrate 10 is configured to implement reflective display, and the transparent electrode 211 is configured to absorb the light absorbing particles 231 under voltage control so that the incident light (for example, ambient light) and the emergent light (for example, the reflected light of the ambient light) of the display substrate 10 emerge from the hollowed-out portion 212, thereby implementing bright-state display.
In some embodiments, as shown in fig. 1, the second transparent electrode layer 22 includes a transparent planar electrode 221; the transparent planar electrode 221 is configured to adsorb the light absorbing particles 231 under voltage control so that outgoing light or incoming light of the display substrate 10 is absorbed by the light absorbing particles 231, thereby realizing dark state display.
For example, as shown in fig. 2B, the display substrate 10 is configured to implement transmissive display, the transparent planar electrode 221 is configured to absorb the light-absorbing particles 231 under voltage control so that both incident light and emergent light of the display substrate 10 are absorbed by the light-absorbing particles 231, thereby implementing dark state display, and at the same time, since the incident light is absorbed by the light-absorbing particles 231 when it is irradiated onto the display panel, the incident light cannot be reflected on the display panel, so that the anti-reflection effect of the display panel is better.
For another example, as shown in fig. 3B, the display substrate 10 is configured to implement reflective display, the transparent planar electrode 221 is configured to absorb the light-absorbing particles 231 under voltage control so that the incident light (e.g., ambient light) of the display substrate 10 is absorbed by the light-absorbing particles 231, thereby implementing dark state display, and at the same time, the incident light cannot be reflected on the display panel because the incident light is absorbed by the light-absorbing particles 231 when the incident light is irradiated on the display panel, so that the anti-reflection effect of the display panel is better.
It can be seen that in some embodiments, the gray scale adjustment is achieved by adjusting the voltages of the first transparent electrode layer 21 and the second transparent electrode layer 22, and thus adjusting the adsorption ratio of the first transparent electrode layer 21 and the second transparent electrode layer 22 to the light absorbing particles 231.
In some embodiments, as shown in fig. 4, the light adjusting structure 20 may further include light adjusting units arranged in an array, where each light adjusting unit corresponds to one sub-pixel, so that each sub-pixel may be adjusted by the light adjusting unit, thereby implementing display of a display screen of the display panel. As shown in fig. 4, the light adjusting units are separated by the isolation columns 232, and the isolation columns 232 may be made of light absorbing materials to prevent the problem of light mixing between the sub-pixels. Alternatively, the isolation column 232 may be made of an electrostatic shielding material to prevent signal interference between transparent electrodes of different sub-pixels.
From the above embodiments, it can be seen that, in the display panel provided by the embodiment of the present invention, the light adjustment is implemented by using the light adjustment structure, so that better anti-reflection display can be implemented without using a polarizer, and the thickness of the display module is reduced as a whole, and because the polarizer is not required to be disposed, the influence of the polarizer on the light efficiency is reduced, and the cost is reduced.
Fig. 5 is a schematic structural diagram of another embodiment of a display panel according to an embodiment of the present invention.
As shown in fig. 5, the display panel includes:
the organic electroluminescent diode display substrate 10 is configured to implement a transmissive or reflective display.
The organic electroluminescent diode display substrate 10 includes: a second substrate 11, an anode layer 12, a hole injection layer 13, a hole transport layer 14, a light emitting layer 15, an electron transport layer 16, an electron injection layer 17, a cathode layer 18, and a color film layer 19.
The light adjusting structure 20 is disposed on the light emitting side of the organic electroluminescent diode display substrate 10, and is configured to transmit or absorb the outgoing light or the incoming light of the display substrate under voltage control, so that the display panel displays a bright state or a dark state.
Referring to fig. 2A in combination, the transparent electrode 211 is configured to adsorb the light absorbing particles 231 under voltage control so that the light emitted from the display substrate 10 exits from the hollowed-out portion 212, thereby realizing bright display. At this time, the light emitted from the light emitting layer 15 can be transmitted, and the light is not absorbed by the polarizer, so that the light efficiency is not lost and can be greatly improved.
Referring to fig. 2B in combination, the transparent planar electrode 221 is configured to absorb the light-absorbing particles 231 under voltage control so that both the incident light and the emergent light of the display substrate 10 are absorbed by the light-absorbing particles 231, thereby implementing dark state display, and meanwhile, the incident light cannot be reflected on the display panel because the incident light is absorbed by the light-absorbing particles 231 when the incident light irradiates on the display panel, so that the anti-reflection effect of the display panel is better. At this time, the OLED electrode may not need to be applied with a voltage, and external ambient light is irradiated to the black particles to be absorbed, so that the contrast ratio is not affected by reflection of reflected light.
In some embodiments, the anode layer 12 in the organic electroluminescent diode display substrate 10 may be made of a metal material (e.g., a specular metal material) having a high reflectivity so that it can reflect ambient light incident through the light modulating structure 20.
Referring to the operation principle of fig. 3A and 3B, when the OLED electrode is not applied with a voltage, and the transparent electrode 211 is applied with a voltage, and at this time, the light absorbing particles 231 are absorbed by the transparent electrode 211, ambient light is reflected on the anode layer 12, thereby achieving a bright state. When a voltage is applied to the transparent planar electrode 221, the light absorbing particles 231 are adsorbed by the transparent planar electrode 221, and the anode layer 12 cannot be irradiated with ambient light, so that no reflected light is generated, and a dark state is realized. Thus, the display panel realizes reflective display.
In some embodiments, the high reflectivity of the anode layer 12 may also be utilized to enhance the light efficiency. As shown in fig. 6, when the anode layer 12 can reflect ambient light, the anode layer 12 can also reflect ambient light when the light-emitting layer 15 of the display substrate 10 emits light, so that external ambient light can be utilized, and the light-emitting brightness of the OLED can be improved.
The embodiment of the invention also provides a display device which comprises any embodiment or arrangement and combination of embodiments of the display panel.
Note that, the display device in this embodiment may be: electronic paper, mobile phone, tablet computer, television, notebook computer, digital photo frame, navigator and any other products or components with display function.
Fig. 7 is a schematic flow chart of an embodiment of a display method of a display panel according to an embodiment of the present invention.
The display method of the display panel comprises the following steps:
step 302: controlling the display substrate to perform transmission display or reflection display;
step 304: and controlling the light ray adjusting structure to transmit or absorb the emergent light ray or the incident light ray of the display substrate so as to enable the display panel to display a bright state or a dark state.
According to the display method of the display panel, provided by the embodiment of the invention, the light adjustment structure is utilized to realize light adjustment, so that better anti-reflection display can be realized under the condition that the polaroid is not used, the thickness of the display module is reduced as a whole, and the polaroid is not required to be arranged, so that the influence of the polaroid on the light efficiency is reduced, and meanwhile, the cost is also reduced.
In some embodiments, the light modulating structure comprises a first transparent electrode layer, a second transparent electrode layer, and a light absorbing particle layer comprising movable light absorbing particles therein; the first transparent electrode layer comprises transparent electrodes which are arranged in an array or at intervals, and hollowed-out parts are formed between adjacent transparent electrodes; the second transparent electrode layer comprises a transparent planar electrode;
the display method comprises the following steps:
controlling the transparent electrode to adsorb the light absorption particles so that emergent rays of the display substrate are emergent from the hollowed-out part; or,
and controlling the transparent planar electrode to adsorb the light-absorbing particles so that emergent rays of the display substrate are absorbed by the light-absorbing particles.
The technical scheme of the invention is described in detail by combining the drawings, and the source electrode, the drain electrode and the active layer are arranged on different layers in the prior art, so that the thickness of the substrate is larger, and the manufacturing process is complex. Through the technical scheme of the application, the source electrode, the drain electrode, the data line and the active layer can be prepared in the same layer by doping copper nitride, so that the thickness of the array substrate is reduced, and the manufacturing process of the array substrate is simplified.
It is noted that in the drawings, the size of layers and regions may be exaggerated for clarity of illustration. Moreover, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or intervening layers may be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may be present. In addition, it will be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or more than one intervening layer or element may also be present. Like reference numerals refer to like elements throughout.
Those of ordinary skill in the art will appreciate that: the foregoing description of the embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. A display panel, comprising:
a display substrate configured to implement transmissive or reflective display;
the light ray adjusting structure is arranged on the light emitting side of the display substrate and is configured to transmit or absorb emergent light rays or incident light rays of the display substrate under voltage control so as to enable the display panel to display a bright state or a dark state;
the light adjusting structure comprises a first transparent electrode layer, a second transparent electrode layer and a light absorbing particle layer, wherein the light absorbing particle layer comprises movable light absorbing particles; the first transparent electrode layer and/or the second transparent electrode layer is configured to adsorb the light absorbing particles under voltage control;
the first transparent electrode layer comprises transparent electrodes which are arranged in an array or at intervals, and hollowed-out parts are formed between adjacent transparent electrodes; the transparent electrode is configured to adsorb the light absorption particles under voltage control so as to enable emergent rays of the display substrate to emerge from the hollowed-out part;
the second transparent electrode layer comprises a transparent planar electrode; the transparent planar electrode is configured to adsorb the light absorbing particles under voltage control so that outgoing light rays and/or incoming light rays of the display substrate are absorbed by the light absorbing particles.
2. The display panel of claim 1, wherein the light absorbing particle layer is disposed between the first transparent electrode layer and the second transparent electrode layer.
3. The display panel of claim 1, wherein the light absorbing particles are black charged particles.
4. The display panel of claim 1, wherein the display substrate is an organic electroluminescent diode display substrate.
5. The display panel of claim 4, wherein the anode layer in the organic electroluminescent diode display substrate is capable of reflecting ambient light incident via the light conditioning structure.
6. A display device comprising the display panel according to any one of claims 1-5.
7. A display method, comprising:
controlling the display substrate to perform transmission display or reflection display;
controlling the light adjusting structure to transmit or absorb emergent light or incident light of the display substrate so as to enable the display panel to display a bright state or a dark state;
the light adjusting structure comprises a first transparent electrode layer, a second transparent electrode layer and a light absorbing particle layer, wherein the light absorbing particle layer comprises movable light absorbing particles; the first transparent electrode layer comprises transparent electrodes which are arranged in an array or at intervals, and hollowed-out parts are formed between adjacent transparent electrodes; the second transparent electrode layer comprises a transparent planar electrode;
the display method comprises the following steps:
controlling the transparent electrode to adsorb the light absorption particles so that emergent rays of the display substrate are emergent from the hollowed-out part; or,
and controlling the transparent planar electrode to adsorb the light-absorbing particles so that emergent light rays and/or incident light rays of the display substrate are absorbed by the light-absorbing particles.
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| CN113206135B (en) * | 2021-04-28 | 2023-03-24 | 武汉华星光电技术有限公司 | Display panel and preparation method thereof |
| CN113793907B (en) * | 2021-08-31 | 2023-12-22 | 京东方科技集团股份有限公司 | Organic light-emitting display panel, preparation method thereof and display device |
| CN114927606A (en) * | 2022-05-17 | 2022-08-19 | Tcl华星光电技术有限公司 | Display panel and preparation method thereof |
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| CN107608121A (en) * | 2017-10-13 | 2018-01-19 | 京东方科技集团股份有限公司 | Substrate and preparation method thereof, array base palte, reflective display panel and device |
| CN109541813A (en) * | 2019-01-03 | 2019-03-29 | 京东方科技集团股份有限公司 | Display base plate, display device and its display methods |
| CN109860265A (en) * | 2019-03-06 | 2019-06-07 | 京东方科技集团股份有限公司 | A kind of substrate and preparation method thereof, display panel, display device |
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