CN114122097A - Display panel, control method, control device, equipment and storage medium thereof - Google Patents

Display panel, control method, control device, equipment and storage medium thereof Download PDF

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Publication number
CN114122097A
CN114122097A CN202111406626.9A CN202111406626A CN114122097A CN 114122097 A CN114122097 A CN 114122097A CN 202111406626 A CN202111406626 A CN 202111406626A CN 114122097 A CN114122097 A CN 114122097A
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China
Prior art keywords
display
display module
light
working mode
controlling
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CN202111406626.9A
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Chinese (zh)
Inventor
贾东旺
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Beijing Youzhuju Network Technology Co Ltd
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Beijing Youzhuju Network Technology Co Ltd
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Priority to CN202111406626.9A priority Critical patent/CN114122097A/en
Publication of CN114122097A publication Critical patent/CN114122097A/en
Priority to PCT/CN2022/126675 priority patent/WO2023093401A1/en
Pending legal-status Critical Current

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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
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • 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
    • 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
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • 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
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/351—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels comprising more than three subpixels, e.g. red-green-blue-white [RGBW]

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Theoretical Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The present disclosure relates to a display panel, a control method thereof, a control apparatus, a device, and a storage medium. The display panel includes: the display device comprises a first display module and a second display module stacked on the light emitting side of the first display module; the first display module includes: the pixel array comprises a plurality of pixel units distributed in an array manner, and each pixel unit comprises a plurality of sub-pixel units; the second display module includes: the shading layer is positioned on one side of the protective layer, which is far away from the pixel array; the light-shielding layer includes: and the light shielding units are opposite to the areas between the adjacent sub-pixel units, and the display particles are positioned in the areas between the adjacent light shielding units. The first display module and the second display module are used for displaying images. The display panel can solve the problem of glare.

Description

Display panel, control method, control device, equipment and storage medium thereof
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a control method, a control apparatus, a device, and a storage medium thereof.
Background
The novel Display technology includes an electronic paper Display, a Liquid Crystal Display (LCD), an active Light-Emitting Diode (Organic Light-Emitting Diode) Display, and the like, wherein the electronic paper Display simulates the Display principle of the conventional paper, and realizes gray scale Display by reflecting ambient Light, so that the user has high viewing comfort. And the LCD and OLED displays can display color images with high color gamut, and the colors of the displayed images are enriched.
In the prior art, the electronic paper display and the OLED display are combined in a superposition manner, so that a high-color-gamut color image is displayed, and meanwhile, energy can be saved when a gray-scale image is displayed.
Disclosure of Invention
The present disclosure provides a display panel, a control method, a control apparatus, a device, and a storage medium thereof, which can solve a glare problem.
In a first aspect, the present disclosure provides a display panel comprising: the display device comprises a first display module and a second display module stacked on the light emitting side of the first display module;
the first display module includes: the pixel array comprises a plurality of pixel units distributed in an array manner, and each pixel unit comprises a plurality of sub-pixel units;
the second display module includes: the shading layer is positioned on one side, far away from the pixel array, of the protective layer; the light-shielding layer includes: and the light shading units are opposite to the areas between the adjacent sub-pixel units, and the display particles are positioned in the areas between the adjacent light shading units.
The first display module and the second display module are used for displaying images.
Optionally, the first display module is configured to display an image in a first operating mode, and provide backlight to the second display module in a second operating mode;
and the second display module is used for displaying images in the second working mode and the third working mode.
Optionally, the light shielding unit includes: the first surface is the surface of one side, close to the protective layer, of the shading unit, the second surface is opposite to the first surface, the third surface is connected with the first surface and the second surface, and the third surface is opposite to the area between the adjacent sub-pixel units;
the vertical projection of the first surface on the protective layer is positioned in the vertical projection of the second surface on the protective layer;
the second display module further comprises: an electrode covering the third surface;
the electrode is used for adsorbing the display particles in the first working mode so as to enable the second display module to transmit light; and driving the display particles to display an image in the second and third operating modes.
Optionally, the light shielding layer includes: the pixel array comprises a plurality of light-shielding strips which extend along a first direction and are arrayed along a second direction, and a plurality of light-shielding strips which extend along the second direction and are arrayed along the first direction, wherein the first direction and the second direction are respectively the row direction and the column direction of the pixel array;
on a plane perpendicular to the extending direction of the light shielding strips, the vertical projection of the light shielding strips is at least one of an inverted trapezoid, an inverted triangle and a T shape.
Optionally, a vertical projection of the second surface on a plane where the pixel array is located in a region between the adjacent sub-pixel units.
Optionally, the second display module further includes: a transparent substrate;
the transparent substrate is located between the protective layer and the shading layer.
Optionally, the second display module is an electronic paper display screen, and the first display module includes: one of a Liquid Crystal Display (LCD), an Organic Light Emitting Diode (OLED) display screen and a Micro light emitting diode (Micro LED) display screen.
In a second aspect, the present disclosure provides a control method for a display panel, which is applied to any one of the display panels provided in the first aspect;
the method comprises the following steps:
determining the working mode of the display panel;
controlling a first display module to display an image in a first working mode;
in a second working mode, controlling the first display module to provide backlight for a second display module, wherein the second display module displays an image;
and in a third working mode, controlling the second display module to display images.
Optionally, in the first operating mode, controlling the first display module to display the image includes:
controlling the electrodes to adsorb display particles according to a first working mode instruction so as to enable the second display module to transmit light;
and controlling the first display module to display an image.
Optionally, in the second operating mode, controlling the first display module to provide backlight to the second display module, where the second display module displays an image, includes:
and controlling the first display module to emit light according to a second working mode instruction, and controlling the electrodes to drive the display particles to display an image.
Optionally, in the third operating mode, controlling the second display module to display an image includes:
and controlling to close the first display module and control the electrodes to drive the display particles to display images according to a third working mode instruction.
Optionally, the controlling the first display module to emit light according to the second operating mode instruction includes:
generating a brightness value and/or a color gamut value according to the second working mode instruction;
and controlling the first display module to emit light according to the brightness value and/or the color gamut value.
In a third aspect, the present disclosure provides a control device for a display panel, which is applied to any one of the display panels provided in the first aspect;
the control device includes:
the determining module is used for determining the working mode of the display panel;
the control module is used for controlling the first display module to display images in the first working mode; in a second working mode, controlling the first display module to provide backlight for a second display module, wherein the second display module displays an image; and in a third working mode, controlling the second display module to display images.
In a fourth aspect, the present disclosure provides an electronic device including any one of the display panels provided in the first aspect.
In a fifth aspect, the present disclosure provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any one of the methods provided by the second aspect.
In the technical scheme provided by the disclosure, the display panel comprises a first display module and a second display module stacked on the light emitting side of the first display module; the first display module includes: the pixel array comprises a plurality of pixel units distributed in an array manner, and each pixel unit comprises a plurality of sub-pixel units; the second display module includes: the shading layer is positioned on one side of the protective layer, which is far away from the pixel array; the light-shielding layer includes: the light shading units are opposite to the areas between the adjacent sub-pixel units, the display particles are positioned in the areas between the adjacent light shading units, and the first display module and the second display module can both display images, so that the light shading layers cannot shade light beams emitted by the sub-pixel units, and the display quality of the first display module is prevented from being influenced; in addition, the shading layer can shield part of external environment light, the intensity of the external environment light incident to the inside of the first display module is reduced, namely, the intensity of the external environment light emitted by the first display module can be reduced, the shading unit can also shield the external environment light reflected by the metal wiring in the first display module, and the intensity of the external environment light emitted by the first display module is further reduced, so that the glare problem can be solved, and the effect of protecting eyes of a user is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a display panel provided in the present disclosure;
fig. 2 is a schematic structural diagram of another display panel provided in the present disclosure;
fig. 3 is a schematic structural diagram of another display panel provided in the present disclosure;
fig. 4 is a schematic top view of a display panel according to the present disclosure;
fig. 5 is a schematic top view of another display panel provided in the present disclosure;
fig. 6 is a schematic structural diagram of another display panel provided in the present disclosure;
fig. 7 is a flowchart illustrating a control method of a display panel according to the present disclosure;
fig. 8 is a schematic flowchart of another control method for a display panel provided in the present disclosure;
fig. 9 is a flowchart illustrating a control method of a display panel according to another embodiment of the present disclosure;
fig. 10 is a flowchart illustrating a control method of a display panel according to still another embodiment of the present disclosure;
fig. 11 is a flowchart illustrating a control method of a display panel according to another embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of a control device of a display panel according to the present disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Fig. 1 is a schematic structural diagram of a display panel provided in the present disclosure, and as shown in fig. 1, a display panel 10 includes: the display device includes a first display module 100, and a second display module 200 stacked on a light emitting side of the first display module 100.
Wherein the first display module 100 includes: the display device comprises a pixel array 110 and a protective layer 120 positioned on one side of the pixel array 110 close to the second display module 200, wherein the pixel array 110 comprises a plurality of pixel units 111 distributed in an array, and each pixel unit 111 comprises a plurality of sub-pixel units 111 a.
The second display module 200 includes: light-shielding layer 210 and display particles 220, light-shielding layer 210 is located on one side of protective layer 120 far away from pixel array 110, wherein light-shielding layer 210 includes: and a plurality of light blocking units 211, wherein the light blocking units 211 are opposite to the areas between the adjacent sub-pixel units, and the display particles 220 are positioned in the areas between the adjacent light blocking units 211.
The first display module 100 and the second display module 200 are used for displaying images.
The pixel array 110 includes a plurality of pixel units 111 distributed in an array along an X direction and a Y direction, as shown in fig. 1, each pixel unit 111 may include three sub-pixel units 111a, the three sub-pixel units 111a are a red sub-pixel unit, a green sub-pixel unit, and a blue sub-pixel unit, respectively, and the first display module 100 may display a color image through the red sub-pixel unit, the green sub-pixel unit, and the blue sub-pixel unit. In other embodiments, each pixel unit 111 may also include four sub-pixel units 111a, and the four sub-pixel units 111a are a red sub-pixel unit, a green sub-pixel unit, a blue sub-pixel unit, and a white sub-pixel unit. In this embodiment, the kind of the sub-pixel unit is not particularly limited.
For example, the manufacturing process of the first display module 100 may include the following steps: a substrate 130 is provided, a driving array layer 140 is disposed on one side of the substrate 130, and the driving array layer 140 includes driving units distributed in an array, and the driving units are used for driving the corresponding sub-pixel units 111a to emit light. The pixel array 110 and the protection layer 120 are sequentially formed on the side of the driving array layer 140 away from the substrate 130, and the protection layer 120 can block the inside and the outside air of the first display module 100, protect the internal structure of the first display module 100 from the influence of moisture in the air, and buffer the external stress received by the first display module 100, thereby playing a role in protection. The present embodiment only exemplarily shows the process of the first display module, and the process of the first display module is not particularly limited.
A certain gap exists between the adjacent sub-pixel units 111a, and a region corresponding to the gap is provided with metal traces for electrically connecting the corresponding sub-pixel unit 111a and the driving circuit, so that the driving circuit can control the sub-pixel unit 111a to emit light. The sub-pixel unit 111a is located in the display area of the first display module 100, that is, the metal trace is located in the display area, when the external ambient light irradiates the inside of the first display module 100, the metal trace in the first display module 100 reflects the external ambient light, and the reflected external ambient light exits through the light exit surface of the first display module 100, so that the intensity of the external ambient light exiting from the first display module 100 is high, and a user may have a glare problem when viewing an image displayed by the first display module 100.
Illustratively, a black organic glue layer is coated on a side of the protective layer 120 away from the pixel array 110, the black organic glue layer is etched and cured to form a plurality of light-shielding units 211, and the light-shielding units 211 directly face the region between the adjacent sub-pixels 111 a. The light shielding unit 211 may be a light shielding strip extending along the X direction and arranged along the Y direction, and/or may be a light shielding strip extending along the Y direction and arranged along the X direction, and may also be a light shielding block arranged along the X direction and the Y direction, and the embodiment does not specifically limit the specific form of the light shielding unit and the color of the light shielding block.
Based on the above embodiment, the region between the adjacent light shielding units 211 is filled with the display particles 220, the display particles 220 include white display particles and black display particles, the white display particles can reflect light beams and thus display white, and the black display particles can absorb light beams and thus display black. Thus, the second display module 200 can display a black-and-white image through the white display particles and the black display particles.
A metal trace is disposed between the adjacent sub-pixel units 111a, and the light shielding unit 211 can cover the metal trace in the first display module 100. If the first display module 100 displays an image, the light beams emitted by the sub-pixel units 111a are emitted through the area between the adjacent light-shielding units 211, as shown in fig. 1 (the solid arrows indicate the light beams emitted by the sub-pixel units 111a for displaying the image), that is, the light-shielding units 211 do not shield the light beams emitted by the sub-pixel units 111a, so as to avoid affecting the display effect of the first display module 100.
When the sub-pixel unit 111a in the first display module 100 emits the light beam to display the image, the external environment light also irradiates the inside of the first display module 100, and the light shielding unit 211 is located on the light emitting side of the first display module 100, so that the light shielding unit 211 shields a part of the external environment light before the external environment light irradiates the first display module 100, as shown in fig. 1 (the dotted arrow represents the external environment light), and the intensity of the external environment light incident to the inside of the first display module 100 is reduced, thereby reducing the intensity of the external environment light emitted by the first display module 100. In addition, a part of the external ambient light incident into the first display module 100 is reflected by the metal trace, and the light shielding unit 211 can prevent the part of the reflected external ambient light from being emitted from the light emitting surface of the first display module 100, so as to further reduce the intensity of the external ambient light emitted from the first display module 100, thereby solving the glare problem of the display panel 10 and playing a role in protecting the eyes of the user.
In this embodiment, the display panel includes a first display module and a second display module stacked on a light emitting side of the first display module; the first display module includes: the pixel array comprises a plurality of pixel units distributed in an array manner, and each pixel unit comprises a plurality of sub-pixel units; the second display module includes: the shading layer is positioned on one side of the protective layer, which is far away from the pixel array; the light-shielding layer includes: the light shading units are opposite to the areas between the adjacent sub-pixel units, the display particles are positioned in the areas between the adjacent light shading units, and the first display module and the second display module can both display images, so that the light shading layers cannot shade light beams emitted by the sub-pixel units, and the display quality of the first display module is prevented from being influenced; in addition, the shading layer can shield part of external environment light, the intensity of the external environment light incident to the inside of the first display module is reduced, namely, the intensity of the external environment light emitted by the first display module can be reduced, the shading unit can also shield the external environment light reflected by the metal wiring in the first display module, and the intensity of the external environment light emitted by the first display module is further reduced, so that the glare problem can be solved, and the effect of protecting eyes of a user is achieved.
Optionally, the first display module 100 is configured to display an image in the first operating mode, and provide backlight to the second display module 200 in the second operating mode. And a second display module 200 for displaying images in the second and third operation modes.
When the display panel 10 is in the first operating mode, the light beams emitted by the sub-pixel units 111a in the first display module 100 pass through the region between the adjacent light-shielding units 211 in the second display module 200 and exit from the light-exiting surface of the second display module 200. In this manner, a color image may be displayed through the first display module 100.
When the display panel 10 is in the third operating mode, the first display module 100 may be turned off, and the display particles 220 in the second display module 200 are distributed in the region between the adjacent light-shielding units 111a, a portion of the display particles 220 may absorb the external ambient light, and another portion of the display particles 220 may reflect the external ambient light, so that the second display module 200 may display a black-and-white image under the irradiation of the external ambient light.
When the display panel 10 is in the second operation mode, the display particles 220 are distributed in the region between the adjacent light-shielding units 211, and the light beam emitted from the sub-pixel unit 111a in the first display module 100 irradiates the display particles 220 located in the region between the adjacent light-shielding units 211. One part of the display particles 220 may absorb the light beams emitted from the sub-pixel unit 111a, and the other part may reflect the light beams emitted from the sub-pixel unit 111a, so that the second display module 200 may display black and white images in a dark environment by using the light beams emitted from the first display module 100 as a backlight.
In summary, in this embodiment, the display panel can display a color image through the first display module, can display a black-and-white image through the second display module, and can also display the black-and-white image through the second display module in a dark environment by using the light beam emitted by the first display module as backlight, so that the display panel can be applied to various display scenes, the display diversity of the display panel is improved, and the energy consumption of the display panel can be reduced.
Optionally, fig. 2 is a schematic structural diagram of another display panel provided by the present disclosure, and fig. 3 is a schematic structural diagram of another display panel provided by the present disclosure, and with reference to fig. 2 and fig. 3, the light shielding unit 211 includes: a first surface 211a, a second surface 211b, and a third surface 211c, wherein the first surface 211a is a surface of the light shielding unit 211 near the side of the protection layer 120, the second surface 211b is opposite to the first surface 211a, the third surface 211c connects the first surface 211a and the second surface 211b, and the third surface 211c is a region facing between the adjacent sub-pixel units 111 a.
Wherein the vertical projection of the first surface 211a on the protection layer 120 is located within the vertical projection of the second surface 211b on the protection layer 120.
As shown in fig. 2 and 3, the second display module 200 further includes: and an electrode 230, the electrode 230 covering the third surface 211 c. The electrodes 230 are used for adsorbing the display particles 220 in the first operation mode to make the second display module 200 transmit light, and driving the display particles 220 to display an image in the second operation mode and the third operation mode.
Specifically, as shown in fig. 2 and 3, a surface of the light shielding unit 211 on a side away from the protective layer 120 is a second surface 211b, a surface of the light shielding unit 211 on a side close to the protective layer 120 is a first surface 211a, and the second surface 211b may cover the first surface 211 a. Illustratively, the vertical projection of the light shielding unit 211 on the XZ plane is an inverted trapezoid, as shown in fig. 2 and 3, the vertical projection of the second surface 211b on the XZ plane is a long side of the inverted trapezoid, the vertical projection of the first surface 211a on the XZ plane is a short side of the inverted trapezoid, and the vertical projection of the third surface 211c on the XZ plane is two waists of the inverted trapezoid.
After the light-shielding layer 210 is formed, an electrode 230 is formed on the third surface 211c by performing electrode evaporation to cover the third surface 211 c. Based on the above embodiment, the perpendicular projection of the electrode 230 on the XZ plane covers the waist of the inverted trapezoid, as shown in fig. 2 and 3. The electrodes 230 are electrically connected to a driving circuit, and can generate corresponding electric fields according to the electrical signals provided by the driving circuit to drive the display particles 220 to move.
If the display panel 10 is in the first operating mode, the electrodes 230 generate a first electric field according to the received first electric signal, and under the action of the first electric field, the display particles 220 move to the region where the electrodes 230 are located, so that the display particles are adsorbed to the electrodes 230, as shown in fig. 2, the region between the adjacent light shielding units 211 is in a light-permeable state. In this manner, the light beam emitted from the first display module 100 may pass through the region between the adjacent light blocking units 211, i.e., may pass through the second display module 200, thereby ensuring that the display panel 10 may display a color image through the first display module 100. In addition, since the second surface 211b can cover the first surface 211a, the first surface 211a can also cover the display particles 220, so that when the first display module 100 displays an image, the display effect can be prevented from being affected by the display particles 220.
If the display panel 10 is in the second operation mode, the first display module 100 may emit a light beam, and the electrode 230 generates a second electric field according to the received second electrical signal, and the display particles 220 are distributed in the region between the adjacent light-shielding units 211 under the action of the second electric field, as shown in fig. 3. Since the area between the adjacent light shielding units 211 is filled with the display particles 220, the light beam emitted from the first display module 100 does not pass through the area between the adjacent light shielding units 211, but is reflected and absorbed by the display particles 220, so that the light beam emitted from the first display module 100 can be used as a backlight to display a black-and-white image through the second display module 200 in a dark environment of the display panel 10.
If the display panel 10 is in the third operating mode, the first display module is in the off state, the electrode 230 generates a third electric field according to the received third electrical signal, and under the action of the third electric field, the display particles 220 are distributed in the region between the adjacent light-shielding units 211 to reflect and absorb the external ambient light, so as to ensure that the display panel 10 can display black and white images through the second display module 200 in a brighter environment.
Optionally, fig. 4 is a schematic top view structure diagram of a display panel provided in the present disclosure, and as shown in fig. 4, the light shielding layer 210 includes: a plurality of light-shielding bars 212 extending in a first direction and arranged in a second direction, and a plurality of light-shielding bars 212 extending in the second direction and arranged in the first direction, the first direction and the second direction being a row direction and a column direction of the pixel array 110, respectively.
On a plane perpendicular to the extending direction of the light shielding bars 212, the vertical projection of the light shielding bars 212 is at least one of an inverted trapezoid, an inverted triangle and a T shape.
Illustratively, as shown in fig. 4, the row direction of the pixel array 110 is the X direction, and the column direction is the Y direction, i.e. the plurality of sub-pixel units 111a of the pixel array 110 are distributed in an array along the X direction and the Y direction. The light-shielding layer 210 includes a plurality of first light-shielding bars 212a and a plurality of second light-shielding bars 212b, wherein the first light-shielding bars 212a extend along the X direction and are arranged along the Y direction, and the second light-shielding bars 212b extend along the Y direction and are arranged along the X direction. The light-shielding strip 212 can cover the area between the adjacent sub-pixel units 110a as much as possible, block more external ambient light, and also block more external ambient light reflected in the first display module from being emitted from the first display module, so as to reduce the intensity of the external ambient light emitted from the first display module, and thus the display panel has a better anti-glare effect.
In other embodiments, the light-shielding layer 210 may include a plurality of light-shielding strips extending along the X direction and arranged along the Y direction, or a plurality of light-shielding strips extending along the Y direction and arranged along the X direction, which is not particularly limited in this embodiment.
The vertical projection of the first light-shielding bar 212a on the YZ plane may be an inverted trapezoid, and the vertical projection of the second light-shielding bar 212b on the XZ plane may be an inverted trapezoid, as shown in fig. 2, so that when the first display module displays an image, the light beams reflected by the display particles in the second display module are shielded by the light-shielding bars, and the display effect of the first display module is not affected. In addition, the inverted trapezoidal shading strip 212 can be prepared through the existing etching process, the implementation mode is simple, and the operability is strong.
In other embodiments, the vertical projection of the first light-shielding bar 212a on the YZ plane and the vertical projection of the second light-shielding bar 212b on the XZ plane may also be an inverted triangle, or a T shape; or may be two of an inverted trapezoid, an inverted triangle, and a T shape, or may also be an inverted trapezoid, an inverted triangle, and a T shape, which is not limited in this embodiment.
It should be noted that, in the present embodiment, it is merely exemplarily shown that the row direction of the pixel array 110 is the X direction, and the column direction of the pixel array 110 is the Y direction, and the row direction and the column direction of the pixel array 110 are not limited.
Optionally, fig. 5 is a schematic top view structure diagram of another display panel provided in the present disclosure, and as shown in fig. 5, a vertical projection of the second surface 211b on a plane where the pixel array 110 is located in an area between adjacent sub-pixel units 111 a.
For example, as shown in fig. 5, the vertical projection of the second surface 211b on the plane of the pixel array 110 is located in the area between the adjacent sub-pixel units 111a, so that the shielding of the light beams emitted by the sub-pixel units 111a by the light shielding unit 211 is as small as possible, and the shielding of the image displayed by the first display module by the light shielding unit 211 can be avoided.
Optionally, fig. 6 is a schematic structural diagram of another display panel provided by the present disclosure, and as shown in fig. 6, the second display module 200 further includes: a transparent substrate 240.
The transparent substrate 240 is located between the protection layer 120 and the light-shielding layer 220.
For example, the process for manufacturing the second display module 200 includes: providing a transparent substrate 240, coating black organic glue on the transparent substrate 240, etching the organic glue layer, and forming a light-shielding layer 210 after curing; forming electrodes on the surfaces opposite to the adjacent light shielding units 211, and filling the display particles 220 in the regions between the adjacent light shielding units 211; and forming an encapsulation protection layer on the side of the light shielding layer 210 far away from the transparent substrate 240 to encapsulate the second display module 200.
Based on the above embodiment, the prepared second display module 200 may be stacked on the surface of the first display module 100 close to the protection layer 120, the transparent substrate 240 in the second display module 200 is opposite to the protection layer 120, the second display module 200 is aligned with the first display module 100, so that the light shielding unit 211 in the second display module 200 is opposite to the area between the adjacent sub-pixels 111a in the first display module 100, and after the alignment is completed, the second display module 200 is fixed on the side of the first display module 100 close to the protection layer 120, so as to form the display panel shown in fig. 6.
In this embodiment, the first display module and the second display module can be prepared separately, that is, the first display module and the second display module can be prepared simultaneously, so that the process time of the display panel can be shortened, and the improvement of the shipment volume of the display panel is facilitated.
In other embodiments, a black organic glue may be directly coated on a surface of the protection layer 120 away from the pixel array 110, and after the organic glue layer is etched and cured, the light-shielding layer 210 is formed, so as to prepare the display panel 10 shown in fig. 1. In the embodiment, a transparent substrate is not required to be arranged, so that the thickness of the display panel can be reduced, and the development of light and thin of the display panel is facilitated.
Based on the above embodiment, optionally, the second display module 200 is an electronic paper display screen, and the first display module 100 includes: one of a Liquid Crystal Display (LCD), an Organic Light Emitting Diode (OLED) display screen and a Micro light emitting diode (Micro LED) display screen.
For example, the second display module 200 is an electronic paper display screen, and when the second display module 200 is used to display an image, energy can be saved, and the first display module 100 can be an LCD capable of displaying a color image with a high color gamut, so that the display panel 10 can display the color image with the high color gamut in a color display scene, and can also save energy while displaying the image in a black-and-white image display scene.
It should be noted that the first display module 100 may also be an OLED display screen or a Micro LED (Micro Light-Emitting Diode) display screen, which is not specifically limited in this embodiment.
The present disclosure also provides a control method of a display panel, which is applied to the display panel 10 provided in any of the above embodiments. Fig. 7 is a schematic flowchart of a control method of a display panel provided in the present disclosure, as shown in fig. 7, including:
s101, determining the working mode of the display panel.
The operation mode of the display panel may be determined based on user selection, for example, if the user needs to display a color image, a first operation mode may be selected, if the user needs to display a black-and-white image in a dark environment, a second operation mode may be selected, and if the user needs to display a black-and-white image in a bright environment, a third operation mode may be selected. The operation mode of the display panel may also be determined based on user selection and the external environment, for example, if the user needs to display a black-and-white image, the operation mode of the black-and-white image may be selected, and the second operation mode or the third operation mode may be determined based on the brightness of the external environment.
And S102, controlling the first display module to display the image in the first working mode.
And if the display panel is in the first working mode, controlling the light beams emitted by the sub-pixel units in the first display module to pass through the area between the adjacent shading units in the second display module and to be emitted from the light-emitting surface of the second display module. In this way, a color image can be displayed through the first display module.
And S103, in a second working mode, controlling the first display module to provide backlight for a second display module, and displaying an image by the second display module.
If the display panel is in the second working mode, the display particles are controlled to be distributed in the area between the adjacent shading units, and the light beams emitted by the sub-pixel units in the first display module irradiate the display particles in the area between the adjacent shading units. One part of the display particles can absorb the light beams emitted by the sub-pixel units, and the other part of the display particles can reflect the light beams emitted by the sub-pixel units, so that the second display module can display black and white images in a dark environment by using the light beams emitted by the first display module as backlight.
And S104, controlling the second display module to display the image in a third working mode.
If the display panel is in the third working mode, the first display module is controlled to be closed, and the display particles are controlled to be distributed in the area between the adjacent shading units, one part of the display particles can absorb external environment light, the other part of the display particles can reflect the external environment light, and therefore the second display module can display black and white images under the irradiation of the external environment light.
In the embodiment, the working mode of the display panel is determined; controlling a first display module to display an image in a first working mode; in a second working mode, controlling the first display module to provide backlight for the second display module, and displaying an image by the second display module; under the third operating mode, control second display module display image, display panel both can show colour image through first display module, can show black and white image through the second display module again, can also be under darker environment, and the light beam that uses first display module transmission shows black and white image through the second display module as being shaded for display panel can be applicable to multiple display scene, promotes the variety that display panel shows, can also reduce display panel's energy consumption.
Fig. 8 is a schematic flowchart of another control method for a display panel provided by the present disclosure, and fig. 8 is a detailed description of a possible implementation manner when executing S102 on the basis of the embodiment shown in fig. 7, as follows:
and S1021, controlling the electrodes to adsorb display particles according to the first working mode instruction so as to enable the second display module to transmit light.
Illustratively, as shown in fig. 2, the light shielding unit 211 includes: a first surface 211a, a second surface 211b, and a third surface 211c, wherein the first surface 211a is a surface of the light shielding unit 211 near one side of the protection layer 120, the second surface 211b is opposite to the first surface 211a, the third surface 211c connects the first surface 211a and the second surface 211b, and the third surface 211c is a region facing between the adjacent sub-pixel units 111a, and the electrode 230 covers the third surface 211 c. The electrodes 230 are electrically connected to a driving circuit, and can generate corresponding electric fields according to the electrical signals provided by the driving circuit to drive the display particles 220 to move.
If the display panel is in the first working mode, a first working mode instruction is generated, the driving circuit generates a first electric signal according to the first working mode instruction, the electrode generates a first electric field according to the first electric signal, and under the action of the first electric field, the display particles move to the area where the electrode is located so that the display particles adsorb the area where the electrode is located, and at the moment, the area between the adjacent shading units is in a light-permeable state.
And S1022, controlling the first display module to display the image.
And controlling the first display module to emit a light beam according to the first working mode instruction, wherein the light beam emitted by the first display module is used for displaying an image, and at the moment, the light beam emitted by the first display module can penetrate through the area between the adjacent shading units, namely, the color image can be displayed through the second display module.
In this embodiment, the electrodes are controlled to adsorb the display particles according to the first operating mode instruction, so that the second display module transmits light; and controlling the first display module to display the image to ensure that the display panel can display the color image through the first display module.
Fig. 9 is a schematic flowchart of a control method of another display panel provided by the present disclosure, and fig. 9 is a detailed description of a possible implementation manner when S103 is executed on the basis of the embodiment shown in fig. 7, as follows:
and S103', controlling the first display module to emit light according to the second working mode instruction, and controlling the electrodes to drive the display particles to display images.
If the display panel is in the second working mode, a second working mode instruction is generated, the first display module can emit a light beam, the driving circuit generates a second electric signal according to the second working mode instruction, the electrode generates a second electric field according to the received second electric signal, and under the action of the second electric field, particles are displayed to be distributed in an area between adjacent shading units. Because the areas between the adjacent shading units are filled with the display particles, the light beams emitted by the first display module do not pass through the areas between the adjacent shading units, but are reflected and absorbed by the display particles, so that the display panel can use the light beams emitted by the first display module as backlight and display black and white images through the second display module in a dark environment.
In this embodiment, the first display module is controlled to emit light according to the second operating mode instruction, and the electrodes are controlled to drive the display particles to display an image, so that the display panel can be ensured to display a black-and-white image through the second display module by using the light beam emitted by the first display module as backlight in a dark environment.
Fig. 10 is a schematic flow chart of another control method for a display panel provided by the present disclosure, and fig. 10 is a detailed description of a possible implementation manner when S103' is executed on the basis of the embodiment shown in fig. 9, as follows:
and S1031, generating a brightness value and/or a color gamut value according to the second working mode instruction.
The display panel comprises a plurality of second working modes, different second working mode instructions can be generated under different second working modes, the driving circuit can generate different second electric signals according to the different second working mode instructions, and different brightness values are generated under the action of the different second electric signals. The user can select a corresponding second working mode according to actual requirements, and a corresponding second working mode instruction is generated according to the second working mode selected by the user, so that a corresponding brightness value is generated. For example, the second operation mode selected in a weak light environment has a luminance value of L1, the second operation mode selected in a completely black environment has a luminance value of L2, and L2< L1, i.e., in a darker environment, the generated luminance value is smaller.
It should be noted that, this embodiment only exemplarily illustrates that the corresponding luminance value is generated according to different second operation mode instructions, and in other embodiments, the corresponding color gamut value may also be generated according to different second operation mode instructions, or the corresponding luminance value and the color gamut value may also be generated according to different second operation mode instructions.
S1032, controlling the first display module to emit light according to the brightness value and/or the color gamut value.
And controlling the first display module to emit light beams with corresponding brightness according to the generated brightness value, namely controlling the brightness value of the light beams emitted by the first display module to be approximately equal to the generated brightness value, so that the first display module can emit light beams with different brightness. Illustratively, based on the above embodiment, the darker the environment, the smaller the brightness of the light beam emitted by the first display module, so that the contrast between the brightness of the first display module and the brightness of the external environment is smaller, thereby achieving the effect of protecting the eyes of the user.
In other embodiments, the first display module may be further controlled to emit the light beam of the corresponding color according to the generated color gamut value, that is, the color gamut value of the light beam emitted by the first display module is approximately equal to the generated color gamut value; or the first display module can be controlled to emit light beams with corresponding brightness and corresponding colors according to the generated brightness values and the generated color gamut values.
In this embodiment, the brightness value and/or the color gamut value of the first display module are/is adjusted according to the second working mode instruction, the first display module is controlled to emit light, the luminance and the color of the first display module can be adjusted according to the actual external environment, the requirement of the user for displaying diversity is met, and the purpose of protecting the eyes of the user can be achieved.
Fig. 11 is a schematic flowchart of a control method of another display panel provided by the present disclosure, and fig. 11 is a detailed description of a possible implementation manner when executing S104 on the basis of the embodiment shown in fig. 7, as follows:
and S104', controlling to close the first display module and controlling the electrodes to drive the display particles to display images according to the third working mode instruction.
If the display panel is in the third working mode, a third working mode instruction is generated, the first display module is in a closed state, the driving circuit generates a third electric signal according to the third working mode instruction, and under the action of a third electric field, the display particles are distributed in an area between adjacent shading units to reflect and absorb external environment light, so that the display panel can display black and white images through the second display module in a brighter environment.
In this embodiment, the first display module is controlled to be turned off according to the third operating mode instruction, and the electrodes are controlled to drive the display particles to display an image, so that the display panel can display a black-and-white image through the second display module in a bright environment.
The present disclosure further provides a control device of a display panel, which is applied to the display panel provided in any of the above embodiments. Fig. 12 is a schematic structural diagram of a control device of a display panel provided in the present disclosure, and as shown in fig. 12, the control device includes:
a determining module 310, configured to determine an operating mode of the display panel.
A control module 320, configured to control the first display module to display an image in the first operating mode; in a second working mode, controlling the first display module to provide backlight for a second display module, wherein the second display module displays an image; and in a third working mode, controlling the second display module to display images.
Optionally, the control module 320 is further configured to control the electrodes to adsorb the display particles according to the first operating mode instruction, so that the second display module transmits light; and controlling the first display module to display an image.
Optionally, the control module 320 is further configured to control the first display module to emit light according to a second working mode instruction, and control the electrodes to drive the display particles to display an image.
Optionally, the control module 320 is further configured to control to turn off the first display module and control the electrodes to drive the display particles to display an image according to a third operating mode instruction.
Optionally, the control module 320 is further configured to generate a brightness value and/or a color gamut value according to the second operation mode instruction; and controlling the first display module to emit light according to the brightness value and/or the color gamut value.
The device of this embodiment is capable of implementing the technical solutions of the above method embodiments, and the implementation principle and technical effects are similar, and are not described herein again.
The present disclosure also provides an electronic device including the display panel provided in any of the above embodiments.
The electronic device provided in this embodiment has the advantages of the display panel in the above embodiments, and details are not repeated herein. In specific implementation, the electronic device may be a mobile phone, a tablet computer, a notebook computer, or any product or component with a display function, such as a television, a display area, a learning machine, a digital photo frame, a navigator, an intelligent wearable electronic device, and the like, which is not limited in this embodiment.
The present disclosure also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to the above-mentioned method embodiments.
The present disclosure also provides a computer program product which, when run on a computer, causes the computer to perform the steps of the method of the above-described method embodiments.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (15)

1. A display panel, comprising: the display device comprises a first display module and a second display module stacked on the light emitting side of the first display module;
the first display module includes: the pixel array comprises a plurality of pixel units distributed in an array manner, and each pixel unit comprises a plurality of sub-pixel units;
the second display module includes: the shading layer is positioned on one side, far away from the pixel array, of the protective layer; the light-shielding layer includes: and the light shading units are opposite to the areas between the adjacent sub-pixel units, and the display particles are positioned in the areas between the adjacent light shading units.
The first display module and the second display module are used for displaying images.
2. The display panel according to claim 1,
the first display module is used for displaying images in a first working mode and providing backlight for the second display module in a second working mode;
and the second display module is used for displaying images in the second working mode and the third working mode.
3. The display panel according to claim 2, wherein the light shielding unit comprises: the first surface is the surface of one side, close to the protective layer, of the shading unit, the second surface is opposite to the first surface, the third surface is connected with the first surface and the second surface, and the third surface is opposite to the area between the adjacent sub-pixel units;
the vertical projection of the first surface on the protective layer is positioned in the vertical projection of the second surface on the protective layer;
the second display module further comprises: an electrode covering the third surface;
the electrode is used for adsorbing the display particles in the first working mode so as to enable the second display module to transmit light; and driving the display particles to display an image in the second and third operating modes.
4. The display panel according to any one of claims 1 to 3, wherein the light shielding layer comprises: the pixel array comprises a plurality of light-shielding strips which extend along a first direction and are arrayed along a second direction, and a plurality of light-shielding strips which extend along the second direction and are arrayed along the first direction, wherein the first direction and the second direction are respectively the row direction and the column direction of the pixel array;
on a plane perpendicular to the extending direction of the light shielding strips, the vertical projection of the light shielding strips is at least one of an inverted trapezoid, an inverted triangle and a T shape.
5. The display panel according to claim 3, wherein a perpendicular projection of the second surface onto a plane of the pixel array is located in a region between the adjacent sub-pixel units.
6. The display panel according to any one of claims 1 to 3, wherein the second display module further comprises: a transparent substrate;
the transparent substrate is located between the protective layer and the shading layer.
7. The display panel according to any one of claims 1 to 3, wherein the second display module is an electronic paper display screen, and the first display module comprises: one of a Liquid Crystal Display (LCD), an Organic Light Emitting Diode (OLED) display screen and a Micro light emitting diode (Micro LED) display screen.
8. A control method of a display panel, characterized by being applied to the display panel according to any one of claims 1 to 7;
the method comprises the following steps:
determining the working mode of the display panel;
controlling a first display module to display an image in a first working mode;
in a second working mode, controlling the first display module to provide backlight for a second display module, wherein the second display module displays an image;
and in a third working mode, controlling the second display module to display images.
9. The method according to claim 8, wherein in the first operation mode, controlling the first display module to display the image comprises:
controlling the electrodes to adsorb display particles according to a first working mode instruction so as to enable the second display module to transmit light;
and controlling the first display module to display an image.
10. The method according to claim 8, wherein in the second operation mode, controlling the first display module to provide backlight to a second display module, the second display module displaying an image comprises:
and controlling the first display module to emit light according to a second working mode instruction, and controlling the electrodes to drive the display particles to display an image.
11. The method according to claim 8, wherein in the third operating mode, controlling the second display module to display an image comprises:
and controlling to close the first display module and control the electrodes to drive the display particles to display images according to a third working mode instruction.
12. The method according to claim 10, wherein the controlling the first display module to emit light according to the second operation mode command comprises:
generating a brightness value and/or a color gamut value according to the second working mode instruction;
and controlling the first display module to emit light according to the brightness value and/or the color gamut value.
13. A control device for a display panel, characterized by being applied to the display panel according to any one of claims 1 to 7;
the control device includes:
the determining module is used for determining the working mode of the display panel;
the control module is used for controlling the first display module to display images in the first working mode; in a second working mode, controlling the first display module to provide backlight for a second display module, wherein the second display module displays an image; and in a third working mode, controlling the second display module to display images.
14. An electronic device characterized by comprising the display panel according to any one of claims 1 to 7.
15. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 8 to 12.
CN202111406626.9A 2021-11-24 2021-11-24 Display panel, control method, control device, equipment and storage medium thereof Pending CN114122097A (en)

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