CN112859323B - Display panel, display device and display method - Google Patents
Display panel, display device and display method Download PDFInfo
- Publication number
- CN112859323B CN112859323B CN202110296821.4A CN202110296821A CN112859323B CN 112859323 B CN112859323 B CN 112859323B CN 202110296821 A CN202110296821 A CN 202110296821A CN 112859323 B CN112859323 B CN 112859323B
- Authority
- CN
- China
- Prior art keywords
- real
- display panel
- transparent electrode
- angle
- human eye
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/16755—Substrates
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
Abstract
The embodiment of the application provides a display panel, display equipment and a display method. In the display panel provided by the embodiment of the application, the charged particles are arranged between the first substrate and the second substrate, the deflection direction of the charged particles is controlled through the first transparent electrode and the second transparent electrode with opposite polarities, and the emergent angle of the collimated light reflected by the charged particles into emergent light can be adjusted. Therefore, the real-time light emitting angle of the display panel can be controlled by controlling the voltage value loaded on the first transparent electrode and the second transparent electrode, and then the real-time light emitting angle can be controlled to be matched with the movement direction of eyes of a user, so that the use of the user can be facilitated.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel, display equipment and a display method.
Background
With the development of mobile communication technology and display technology, functions and application scenes of mobile display devices are increasingly diversified, and users can access various information including private information using the display devices. For example, a user may use a display device to access a bank account, pay a bill, make online purchases, and access various password-protected websites. When a user accesses private information using a mobile display device in a public place, it is generally necessary to prevent other people from peeping the content displayed by the mobile terminal to protect their own privacy.
The existing peep-proof display panel is mostly provided with the polarizer, the shutter peep-proof structure and other components, so that the emergent light of the peep-proof display panel is concentrated in a certain view angle range, and the display content of the display panel in the view angle range is visible. Because of the structural limitation of the components such as the polaroid, the shutter peep-proof structure and the like, the angle of the visual angle of the conventional peep-proof display panel is fixed, and the direction of eyes is required to be frequently adjusted by a user, so that the use experience of the user is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides a display panel, display equipment and a display method, which are used for solving the technical problem that the angle of the visual angle of the peep-proof display panel in the prior art is fixed.
In a first aspect, embodiments of the present application provide a display panel, including: the device comprises a first substrate, a second substrate, a first transparent electrode, a second transparent electrode and charged particles distributed between the first substrate and the second substrate;
the first substrate comprises a first collimating grating, so that light incident to the charged particles is collimated; the first transparent electrode is positioned on one side of the first substrate, the second transparent electrode is positioned on one side of the second substrate, the polarities of the first transparent electrode and the second transparent electrode are opposite, and the combination of the first transparent electrode and the second transparent electrode is used for controlling the deflection direction of the charged particles so as to adjust the emergent angle of the collimated light reflected by the charged particles into emergent light.
In a second aspect, an embodiment of the present application provides a display device, including a processor, a photographing apparatus, and the display panel provided in the first aspect, which are electrically connected;
the processor is used for extracting relevant information of human eye patterns according to the image information acquired by the shooting device; and determining the real-time angle of the straight line of the human eyes corresponding to the human eye pattern and the shooting device relative to the display equipment according to the related information of the human eye pattern, and controlling the real-time light emitting angle of the display panel to be matched with the real-time angle.
In a third aspect, an embodiment of the present application provides a display method, which is applied to the display device provided in the second aspect, where the display method includes:
receiving image information acquired by a shooting device;
extracting relevant information of human eye patterns from the image information;
according to the related information of the human eye pattern, determining the real-time angle of the straight line corresponding to the human eye pattern and the shooting device relative to the display equipment;
and controlling the real-time light emitting angle of the display panel to be matched with the real-time angle.
The beneficial technical effects that technical scheme that this application embodiment provided brought include:
in the display panel provided by the embodiment of the application, the charged particles are arranged between the first substrate and the second substrate, the deflection direction of the charged particles is controlled through the first transparent electrode and the second transparent electrode with opposite polarities, and the emergent angle of the collimated light reflected by the charged particles into emergent light can be adjusted. Therefore, the real-time light emitting angle of the display panel can be controlled by controlling the voltage value loaded on the first transparent electrode and the second transparent electrode, and then the real-time light emitting angle can be controlled to be matched with the movement direction of eyes of a user, so that the use of the user can be facilitated.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;
fig. 2 is a schematic frame diagram of a display device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a backlight module of the display device shown in fig. 3 according to an embodiment of the present application;
fig. 5 is a schematic flow chart of a display method according to an embodiment of the present application.
Reference numerals illustrate:
100-a display panel;
110-a first substrate; 111-a first collimation grating;
120-a second substrate; 121-black matrix; 122-color resistance;
130-a first transparent electrode;
140-a second transparent electrode;
150-charged particulate matter;
160-supporting columns;
200-a backlight module;
210-backlight structure; 211-a second collimating grating; 212-a light source;
220-electrowetting microcavity cells; 221-a cavity; 222-drive electrodes; 2221—a first drive electrode; 2222-second drive electrode; 223-electrowetting fluid; 224-oil;
230-a light shielding structure;
240-a thin film transistor layer;
250-passivation layer;
260-a hydrophobic layer;
270-a buffer layer;
301-a processor; 302-camera device.
Detailed Description
Examples of embodiments of the present application are illustrated in the accompanying drawings, in which like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. Further, if detailed description of the known technology is not necessary for the illustrated features of the present application, it will be omitted. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present application and are not to be construed as limiting the present application.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
The inventor of the application researches and discovers that the existing peep-proof products applied to display equipment such as mobile phones, tablet computers and the like are mainly peep-proof films externally arranged on display panels, and the main body of the peep-proof films is a shutter structure or a polaroid and is realized through a parallel arrangement grating structure. The angle of the visual angle of the peep-proof film is fixed, so that the user is required to frequently adjust the direction of eyes, and the use experience of the user is affected.
In addition, as the polaroid is arranged, only a small part of light rays can be reflected, so that the brightness of the display panel is obviously reduced, visual fatigue of a user is easily caused, and the normal use of the user is influenced; and the display panel is lightened, so that the energy consumption of the display panel is increased, and the cruising ability of the display device is reduced, and the normal use of a user is influenced.
The display panel, the display device and the display method provided by the application aim to solve the technical problems in the prior art.
The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments.
The embodiment of the application provides a display panel, and a schematic structural diagram of the display panel 100 is shown in fig. 1, including: the first substrate 110, the second substrate 120, the first transparent electrode 130, the second transparent electrode 140, and the charged particles 150 distributed between the first substrate 110 and the second substrate 120.
The first substrate 110 includes a first collimating grating 111 such that light incident on the charged particles 150 is collimated; the first transparent electrode 130 is located on one side of the first substrate 110, the second transparent electrode 140 is located on one side of the second substrate 120, and the polarities of the first transparent electrode 130 and the second transparent electrode 140 are opposite, and the combination of the first transparent electrode 130 and the second transparent electrode 140 is used for controlling the deflection direction of the charged particles 150 so as to adjust the emergent angle of the collimated light reflected by the charged particles 150 as emergent light.
In the display panel 100 provided in the embodiment of the present application, the charged particles 150 are disposed between the first substrate 110 and the second substrate 120, and the deflection direction of the charged particles 150 is controlled by the first transparent electrode 130 and the second transparent electrode 140 with opposite polarities, so that the exit angle of the collimated light reflected by the charged particles 150 into the exit light can be adjusted. Therefore, the real-time light emitting angle of the display panel 100 can be controlled by controlling the voltage values loaded on the first transparent electrode 130 and the second transparent electrode 140, and the real-time light emitting angle can be controlled to be matched with the movement direction of eyes of a user, so that the use of the display panel can be facilitated.
In the embodiment of the present application, the shape of the charged particles 150 is elliptical, and the charged particles 150 include a transparent shell and charged nano silver particles wrapped by the transparent shell; under the action of different electric fields, the deflection direction and the rotation direction of the charged particles 150 are correspondingly changed, so that the angle of the emergent light reflected by the charged particles 150 is changed.
The first substrate 110 and the second substrate 120 are oppositely arranged, the first transparent electrode 130 is located at one side of the first substrate 110, the second transparent electrode 140 is located at one side of the second substrate 120, the polarities of the first transparent electrode 130 and the second transparent electrode 140 are opposite, the deflection direction, the rotation direction and the deflection angle of the charged particles 150 can be controlled by controlling the voltage value loaded on the first transparent electrode 130 and the second transparent electrode 140, so that the emergent angle of emergent light reflected by the charged particles 150 can be controlled, the real-time emergent angle of the display panel 100 can be controlled to be matched with the movement direction of eyes of a user, frequent adjustment of the directions of the eyes by the user can be avoided, and the use experience of the user can be ensured.
In addition, compared with an external polarized light type peep-proof film, the brightness of the display panel 100 provided by the embodiment of the application is not obviously reduced, so that the problem that visual fatigue occurs to a user due to the reduction of the brightness of the display panel 100 can be avoided, and the normal use of the user can be ensured; meanwhile, the increase of the energy consumption of the display panel 100 can be avoided, the cruising ability of the display device can be guaranteed, the normal use of a user is guaranteed, and the use experience of the user is improved.
It should be noted that, only if the light incident on the charged particle 150 is collimated, the outgoing angle of the outgoing light reflected by the charged particle 150 can be adjusted by the specular reflection of the charged particle 150, so in this embodiment of the present application, the first substrate 110 includes the first collimating grating 111, so that the light incident on the charged particle 150 is collimated.
In one embodiment of the present application, the second substrate 120 includes a black matrix 121 and a color resist 122; the black matrix 121 and the color resist 122 are arranged at intervals in a direction parallel to the second substrate 120; the orthographic projection of the color resist 122 on the first substrate 110 overlaps with the orthographic projection of the first alignment grating 111 on the first substrate 110, and the charged particles 150 are distributed in the region of the color resist 122 opposite to the first alignment grating 111.
In this embodiment, the second substrate 120 is a color film substrate, as shown in fig. 1, and in a direction parallel to the second substrate 120, the black matrix 121 and the color resistors 122 are arranged at intervals. The orthographic projection of the color resistor 122 on the first substrate 110 overlaps with the orthographic projection of the first collimating grating 111 on the first substrate 110, and the charged particles 150 are distributed in the region where the color resistor 122 faces the first collimating grating 111, so that the collimated light incident on the charged particles 150 can be reflected by the charged particles 150, and the emergent angles of the emergent light can be adjusted.
As shown in fig. 1, a support pillar 160 is further disposed between the first substrate 110 and the second substrate 120, and in a direction perpendicular to the first substrate 110, a projection area of the black matrix 121 covers a projection area of the support pillar 160, so that an influence of the support pillar 160 on an outgoing light reflected by the charged particles 150 can be avoided.
Optionally, the first transparent electrode 130 is located on a side of the first collimating grating 111 near the second substrate 120, and the second transparent electrode 140 is located on a side of the color resist 122 near the first substrate 110. It should be noted that, in the embodiment of the present application, the electric field generated between the first transparent electrode 130 and the second transparent electrode 140 may cover the charged particles 150, and the lengths of the first transparent electrode 130 and the second transparent electrode 140 in the direction parallel to the first substrate 110 are not limited.
Based on the same inventive concept, the embodiments of the present application provide a display apparatus, as shown in fig. 2, including a processor 301, a photographing device 302, and the display panel 100 provided in each of the above embodiments, which are electrically connected.
The processor 301 is configured to extract relevant information of a human eye pattern according to image information acquired by the photographing device 302; according to the related information of the eye pattern, the real-time angle of the straight line of the eye pattern corresponding to the eye and the photographing device 302 relative to the display device is determined, and the real-time light emitting angle of the display panel 100 is controlled to match with the real-time angle.
In this embodiment, the photographing device 302 is configured to collect image information, the processor 301 extracts relevant information of a human eye pattern according to the image information, determines a real-time angle of a straight line where the human eye pattern corresponds to the human eye and the photographing device 302 is located relative to the display device according to the relevant information of the human eye pattern, and controls the real-time light emitting angle of the display panel 100 to be matched with the real-time angle. Therefore, the display panel 100 of the display device can control the light emitting angle to be matched with the real-time angle of the straight line where the human eyes are positioned relative to the photographing device 302 in real time according to the moving track of the human eyes of the user, so that the dynamic adjustment of the real-time light emitting angle of the display panel 100 is realized, the direction of the eyes can be prevented from being frequently adjusted by the user, the use of the user is facilitated, and the use experience of the user can be ensured.
It should be noted that, in the display apparatus provided in the embodiments of the present application, the photographing device 302 may be disposed separately from the display panel 100, and the photographing device 302 may be integrated inside the display panel 100.
In one embodiment of the present application, the processor 301 is further configured to perform user identification according to iris information in the related information of the eye pattern, and determine, when the user identification passes, a real-time angle of a straight line where the eye corresponding to the eye pattern and the photographing apparatus 302 are located relative to the display device according to real-time track information in the related information of the eye pattern.
In order to improve the safety of the display device, in the embodiment of the present application, the processor 301 is further configured to perform user identification according to iris information in the related information of the eye pattern, and determine, when the user identification passes, a real-time angle of a straight line where the eye corresponding to the eye pattern and the photographing apparatus 302 are located relative to the display device according to real-time track information in the related information of the eye pattern; when the processor 301 determines that the iris information in the related information of the eye pattern is not matched with the pre-stored iris information of the target user, the processor 301 can directly control the display panel 301 to be in the screen-off state, so that leakage of privacy information of the user can be avoided.
In one embodiment of the present application, the processor 301 is electrically connected to the first transparent electrode 130 and the second transparent electrode 140 of the display panel 100; the processor 301 is further configured to determine a real-time light emitting angle of the display panel 100 according to the real-time angle; according to the real-time light emitting angle, the electrical signals loaded on the first transparent electrode 130 and the second transparent electrode 140 are adjusted, so that the direction of the light emitted by the display panel 100 points to the spatial position of the human eye corresponding to the human eye pattern.
In this embodiment, the processor 301 determines the real-time light emitting angle of the display panel 100 according to the real-time angle, adjusts the electrical signals loaded on the first transparent electrode 130 and the second transparent electrode 140, so that the direction of the light emitted by the display panel 100 points to the spatial position of the human eye corresponding to the human eye pattern, thereby realizing the dynamic adjustment of the real-time light emitting angle of the display panel 100, ensuring the peep-proof effect, and the visual viewing angle of the display panel 100 is not affected.
In an embodiment of the present application, fig. 3 is a schematic structural diagram of a display device, and fig. 4 is a schematic structural diagram of a backlight module of the display device shown in fig. 3. The display device further includes a backlight module 200, where the backlight module 200 is disposed on the light incident side of the display panel 100 and electrically connected to the processor 301.
The backlight module 200 includes: a backlight structure 210, wherein a second collimating grating 211 is disposed on the light-emitting side of the backlight structure 210; the electrowetting microcavity unit 220 is distributed on the light emitting side of the second collimating grating 211 and is used for controlling the emitting angle of the light passing through the electrowetting microcavity unit 220; the light shielding structure 230 is disposed on the light emitting side of the electrowetting microcavity unit 220, and in a direction perpendicular to the backlight structure 210, a projection area of the light shielding structure 230 is smaller than that of the electrowetting microcavity unit 220.
In this embodiment, the light emitting side of the backlight structure 210 is provided with the second collimating grating 211, so that the light emitted from the backlight structure 210 is collimated. The electrowetting microcavity unit 220 is distributed on the light emitting side of the second collimating grating 211, and when the collimated light enters the electrowetting microcavity unit 220, the processor 301 can control the electrowetting microcavity unit 220 to regulate and control the emitting angle of the emitted light.
Since the light emitting side of the electrowetting microcavity unit 220 is provided with the light shielding structure, and the projection area of the light shielding structure 230 is smaller than the projection area of the electrowetting microcavity unit 220 in the direction perpendicular to the backlight structure 210, the light emitting angle of the electrowetting microcavity unit 220 and the cooperation of the light shielding structure 230 can be controlled by the processor 301, so that the purpose of adjusting and controlling the light emitting amount of the backlight module 200 is achieved.
It should be noted that the backlight module 200 further includes a thin film transistor layer 240.
In one embodiment of the present application, as shown in fig. 4, the electrowetting microcavity unit 220 includes a cavity 221, a driving electrode 222 disposed around the cavity 221, and an electrowetting fluid 223 filled in a partial space inside the cavity 221; the driving electrode 222 is used for controlling the form of the electrowetting fluid 223 so as to adjust the emergent angle of the light.
In this embodiment, the Light Emitting side of the backlight structure 210 is provided with a second collimating grating 211, and the left side of the backlight structure 210 is provided with a Light source 212, and optionally, the Light source 212 is a white LED (Light-Emitting Diode). A buffer layer 270 is arranged on one side of the backlight structure 210, a thin film transistor layer 240 is arranged on one side of the buffer layer 270 away from the backlight structure 210, and a hydrophobic layer 260 is arranged on one side of the thin film transistor layer 240 away from the backlight structure 210; the side of the hydrophobic layer 260 away from the backlight structure 210 is provided with a cavity 221 of the electrowetting microcavity unit 220, an inner space formed by enclosing the cavity 221 is filled with electrowetting fluid 223 and oil 224, the electrowetting fluid 223 is in contact with the hydrophobic layer 260, so that the contact angle between the electrowetting fluid 223 and the hydrophobic layer 260 is convenient to adjust, the change of the form of the electrowetting fluid 223 is realized, and the purpose of the oil 224 is to facilitate the change of the form of the electrowetting fluid 223.
The driving electrode 222 is disposed around the cavity 221, and in this embodiment, the driving electrode 222 includes a first driving electrode 2221 and a second driving electrode 2222, the first driving electrode 2221 is disposed in a peripheral wall of the cavity 221, and the second driving electrode 2222 is disposed in the thin film transistor layer 240. The form of the electrowetting fluid 223 can be regulated by controlling the voltage values of the first driving electrode 2221 and the second driving electrode 2222, so that the outgoing angle of the rays emitted by the electrowetting fluid 223 can be regulated.
As shown in fig. 4, the electrowetting microcavity unit 220 on the left is in a dark state, specifically, at this time, the upper surface of the electrowetting fluid 223 is the largest curved surface, and when the collimated light emitted from the backlight structure 210 is incident to the electrowetting fluid 223, the light is totally blocked by the light shielding structure 230 because the convex mirror effect of the electrowetting fluid 223 is converged at one point, i.e. converged at the light shielding structure 230. The electrowetting microcavity unit 220 on the right is in a bright state, at this time, the upper surface of the electrowetting fluid 223 is a plane, and when the collimated light emitted from the backlight structure 210 is incident on the electrowetting fluid 223, most of the light can avoid the light shielding structure 230, i.e. most of the light can be emitted.
The form of the electrowetting fluid 223 can be regulated and controlled by controlling the voltage values of the first driving electrode 2221 and the second driving electrode 2222, so that the switching of the electrowetting microcavity unit 220 in the backlight module 200 between the dark state and the bright state can be regulated.
It should be noted that, when the upper surface of the electrowetting fluid 223 in the electrowetting microcavity unit 220 is between the maximum curved surface and the plane, the collimated light emitted from the backlight structure 210 is incident to the electrowetting fluid 223, a part of the light is converged at the light shielding structure 230, and is shielded by the light shielding structure 230, and the rest of the light is emitted, so that the display brightness is between the brightness in the dark state and the brightness in the bright state of the display panel 100, and the adjustment of the display brightness of the display panel 100 is realized.
In one embodiment of the present application, the processor 301 is electrically connected to the drive electrode 222; the processor 301 is further configured to adjust the electrical signal applied to the driving electrode 222 according to the real-time angle, so as to adjust the luminous flux of the display panel 100.
In this embodiment, the processor 301 determines the real-time light emitting angle of the display panel 100 according to the real-time angle, and adjusts the electrical signal loaded on the driving electrode 222 to adjust the light emitting flux of the display panel 100. Thus, the local brightness of the display panel 100 may be adjusted, for example, the processor 301 controls the light output of the area of the display panel 100 corresponding to the human eye to increase according to the real-time angle of the straight line of the human eye pattern corresponding to the human eye and the photographing device 302 relative to the display apparatus, so that the brightness of the area may be increased, so that the user may watch the display content conveniently; the luminous flux of other areas of the display panel 100 is controlled to be reduced, so that the brightness of the area is reduced, the energy consumption of the display panel 100 can be reduced, and the cruising ability of the display device is improved.
Based on the same inventive concept, the embodiments of the present application provide a display method, which is applied to the display device provided in each of the foregoing embodiments, where a flow chart of the method is shown in fig. 5, and the method includes:
s501, receiving image information acquired by a shooting device.
Optionally, the processor 301 receives image information acquired by the photographing device 302.
S502, extracting relevant information of human eye patterns from the image information.
Optionally, the processor 301 extracts information about the human eye pattern according to the image information. The related information of the eye pattern includes iris information, real-time angle of the line where the eye and the photographing device 302 are located with respect to the display apparatus, and the like.
S503, determining the real-time angle of the straight line of the human eyes corresponding to the human eye pattern and the shooting device relative to the display equipment according to the related information of the human eye pattern.
Optionally, the processor 301 determines, according to the information related to the eye pattern, a real-time angle of a straight line where the eye pattern corresponds to the eye and the photographing apparatus 302 is located relative to the display device. I.e. the real-time angle of the angle between the eyes of the target user and the plane in which the display device is located.
S504, the real-time light emitting angle of the display panel is controlled to be matched with the real-time angle.
Optionally, the processor 301 controls the real-time light emitting angle of the display panel 301 to match with the real-time angle; thereby realizing the dynamic adjustment of the real-time light emitting angle of the display panel 100, further avoiding the frequent adjustment of the direction of eyes by the user, facilitating the use of the user and guaranteeing the use experience of the user.
In one embodiment of the present application, the step S503 specifically includes: user identification is carried out according to iris information of the human eye graph; when the user identity identification passes, determining the real-time angle of the straight line of the human eyes corresponding to the human eye pattern and the shooting device relative to the display equipment according to the real-time track information of the human eyes pattern.
Optionally, the processor 301 performs user identification according to iris information of the human eye pattern; when the user identity identification passes, determining the real-time angle of the straight line of the human eyes corresponding to the human eye pattern and the shooting device relative to the display equipment according to the real-time track information of the human eyes pattern. Therefore, disclosure of private information of the user can be avoided, and safety of the display device can be improved.
In one embodiment of the present application, the step S504 specifically includes: determining a real-time light emitting angle of the display panel 100 according to the real-time angle; according to the real-time light emitting angle, the electric signals loaded on the first transparent electrode and the second transparent electrode of the display panel 100 are adjusted, so that the direction of the light emitted by the display panel 100 points to the spatial position of the human eye corresponding to the human eye pattern.
Optionally, the processor 301 determines a real-time light emitting angle of the display panel 100 according to the real-time angle; according to the real-time light emitting angle, the electric signals loaded on the first transparent electrode and the second transparent electrode of the display panel 100 are adjusted, so that the direction of the light emitted by the display panel 100 points to the spatial position of the human eye corresponding to the human eye pattern. Thereby realizing the dynamic adjustment of the real-time light emitting angle of the display panel 100, ensuring the peep-proof effect, and the visual angle of the display panel 100 is not affected.
In one embodiment of the present application, after the step S503, the method further includes: according to the real-time angle, the electrical signal applied to the driving electrode 222 is adjusted to adjust the light output of the backlight module 200.
In this embodiment of the present application, the processor 301 determines the real-time light emitting angle of the display panel 100 according to the real-time angle, so that the light emitting flux of the backlight module 200 can be adjusted in real time, and further, the local brightness of the display panel 100 can be adjusted in real time, for example, the processor 301 controls the light emitting flux of the backlight module 200 corresponding to the area of the display panel 100 corresponding to the human eye to increase according to the real-time angle of the straight line of the human eye corresponding to the human eye pattern and the photographing device 302 relative to the display device, so that the brightness of the area can be improved, so that the user can watch the display content conveniently; the light output of the backlight module 200 corresponding to other areas of the display panel 100 is controlled to be reduced, so that the brightness of other areas of the display panel 100 is reduced, the energy consumption of the display panel 100 is reduced, and the cruising ability of the display device is improved.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
1. in the display panel 100 provided in the embodiment of the present application, the charged particles 150 are disposed between the first substrate 110 and the second substrate 120, and the deflection direction of the charged particles 150 is controlled by the first transparent electrode 130 and the second transparent electrode 140 with opposite polarities, so that the exit angle of the collimated light reflected by the charged particles 150 into the exit light can be adjusted. Therefore, the real-time light emitting angle of the display panel 100 can be controlled by controlling the voltage values loaded on the first transparent electrode 130 and the second transparent electrode 140, and the real-time light emitting angle can be controlled to be matched with the movement direction of eyes of a user, so that the use of the display panel can be facilitated.
2. Compared with an external polarized light type peep-proof film, the brightness of the display panel 100 of the display device provided by the embodiment of the application is not obviously reduced, so that the problem that visual fatigue occurs to a user due to the reduction of the brightness of the display panel 100 of the display device can be avoided, and the normal use of the user can be ensured; meanwhile, the increase of the energy consumption of the display equipment can be avoided, the cruising ability of the display equipment can be guaranteed, the normal use of a user is guaranteed, and the use experience of the user is improved.
3. In the display panel 100 provided in the embodiment of the present application, the local brightness of the display panel 100 may be adjusted by adjusting the voltage value of the driving electrode 222 in the electrowetting microcavity unit 220. The light output amount of the backlight module 200 corresponding to the region of the display panel 100 corresponding to the eyes of the target user is increased, so that the brightness of the region can be improved, thereby facilitating the user to watch the display content; the light output of the backlight module 200 corresponding to other areas of the display panel 100 is reduced, so that the brightness of the area is reduced, the energy consumption of the display device can be reduced, and the cruising ability of the display device is improved.
Those of skill in the art will appreciate that the various operations, methods, steps in the flow, actions, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed in this application may be alternated, altered, rearranged, split, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (8)
1. The display device is characterized by comprising a processor, a shooting device and a display panel which are electrically connected;
the display panel includes: a first substrate, a second substrate, a first transparent electrode, a second transparent electrode, and charged particulate matter distributed between the first substrate and the second substrate; the charged particles comprise a transparent shell and charged nano silver particles wrapped by the transparent shell, and the shape of the charged particles is elliptical; the first substrate comprises a first collimating grating, so that light incident to the charged particles is collimated; the first transparent electrode is positioned on one side of the first substrate, the second transparent electrode is positioned on one side of the second substrate, the polarities of the first transparent electrode and the second transparent electrode are opposite, and the combination of the first transparent electrode and the second transparent electrode is used for controlling the deflection direction of the charged particles so as to adjust the emergent angle of the collimated light reflected by the charged particles into emergent light;
the processor is used for extracting relevant information of human eye patterns according to the image information acquired by the shooting device; according to the related information of the human eye pattern, determining a real-time angle of a straight line of the human eye pattern corresponding to the human eye pattern and the shooting device relative to the display equipment, and controlling the real-time light emitting angle of the display panel to be matched with the real-time angle; the processor is further used for carrying out user identification according to iris information in the related information of the human eye graph, and when the user identification passes, determining a real-time angle of a straight line of the human eye corresponding to the human eye graph and the shooting device relative to the display equipment according to real-time track information in the related information of the human eye graph; and when the iris information in the related information of the human eye graph is not matched with the pre-stored iris information of the target user, controlling the display panel to be in a screen-off state.
2. The display device of claim 1, wherein the processor is electrically connected to the first transparent electrode and the second transparent electrode of the display panel; the processor is also used for determining the real-time light emitting angle of the display panel according to the real-time angle; and according to the real-time light emitting angle, adjusting electric signals loaded on the first transparent electrode and the second transparent electrode, so that the direction of the emergent light of the display panel points to the spatial position of the human eyes corresponding to the human eye pattern.
3. The display device of claim 1, further comprising a backlight module disposed on an incident side of the display panel and electrically connected to the processor, the backlight module comprising:
the backlight structure is provided with a second collimating grating at the light-emitting side;
the electrowetting microcavity unit is distributed on the light-emitting side of the second collimating grating and is used for controlling the emergent angle of light passing through the electrowetting microcavity unit;
the shading structure is arranged on the light emitting side of the electrowetting microcavity unit, and in the direction perpendicular to the backlight structure, the projection area of the shading structure is smaller than that of the electrowetting microcavity unit.
4. A display device according to claim 3, wherein the electrowetting microcavity unit comprises a cavity, a drive electrode arranged around the cavity, and an electrowetting fluid filling part of the space within the cavity;
the driving electrode is used for controlling the form of the electrowetting fluid so as to adjust the emergent angle of light rays.
5. The display device of claim 4, wherein the processor is electrically connected to the drive electrode; the processor is also used for adjusting the electric signal loaded on the driving electrode according to the real-time angle so as to adjust the luminous flux of the display panel.
6. The display device according to claim 1, wherein a side of the second substrate close to the first substrate is provided with a black matrix and a color resist;
the black matrix and the color resistors are arranged at intervals in a direction parallel to the second substrate;
the orthographic projection of the color resistor on the first substrate is overlapped with the orthographic projection of the first collimating grating on the first substrate, and the charged particles are distributed in the area where the color resistor is opposite to the first collimating grating.
7. A display method, characterized in that it is applied to the display device according to any one of claims 1 to 6, comprising:
receiving image information acquired by a shooting device;
extracting relevant information of human eye patterns from the image information;
according to the related information of the human eye pattern, determining a real-time angle of a straight line corresponding to the human eye pattern and the shooting device relative to the display equipment;
and controlling the real-time light emitting angle of the display panel to be matched with the real-time angle.
8. The display method according to claim 7, wherein determining, according to the information about the human eye pattern, a real-time angle of a straight line where the human eye pattern corresponds to the human eye and the photographing apparatus is located with respect to the display device includes: user identity recognition is carried out according to iris information of the human eye graph; when the user identity identification passes, determining the real-time angle of the straight line of the human eyes corresponding to the human eyes pattern and the shooting device relative to the display equipment according to the real-time track information of the human eyes pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110296821.4A CN112859323B (en) | 2021-03-19 | 2021-03-19 | Display panel, display device and display method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110296821.4A CN112859323B (en) | 2021-03-19 | 2021-03-19 | Display panel, display device and display method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112859323A CN112859323A (en) | 2021-05-28 |
| CN112859323B true CN112859323B (en) | 2023-05-12 |
Family
ID=75993690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110296821.4A Active CN112859323B (en) | 2021-03-19 | 2021-03-19 | Display panel, display device and display method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112859323B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681164B (en) * | 2012-05-04 | 2014-10-01 | 京东方科技集团股份有限公司 | Dimming device and display |
| CN106125361B (en) * | 2016-08-05 | 2019-08-30 | 京东方科技集团股份有限公司 | A kind of display panel and its driving method and display device |
| CN107621722B (en) * | 2017-09-22 | 2021-01-22 | 京东方科技集团股份有限公司 | Light emitting direction adjusting element, control method thereof and display device |
| CN109709738B (en) * | 2017-10-20 | 2019-11-22 | 京东方科技集团股份有限公司 | Peep-proof device and its manufacturing method, display device |
| CN109541831B (en) * | 2019-01-30 | 2023-04-21 | 京东方科技集团股份有限公司 | Peep-proof structure, adjusting method, display panel and display device |
| CN109814248B (en) * | 2019-04-01 | 2021-01-26 | 京东方科技集团股份有限公司 | Display device and control method thereof |
| CN110727141A (en) * | 2019-10-23 | 2020-01-24 | 京东方科技集团股份有限公司 | Transparent display device, manufacturing method and control method |
| CN110850585A (en) * | 2019-11-29 | 2020-02-28 | 京东方科技集团股份有限公司 | Display panel, device and method, electrowetting microcavity unit and light control substrate |
-
2021
- 2021-03-19 CN CN202110296821.4A patent/CN112859323B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112859323A (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10839609B2 (en) | Apparatus, systems, and methods for display devices including local dimming | |
| US20210286201A1 (en) | Optical devices, systems, and methods | |
| TW583478B (en) | Liquid crystal display unit | |
| JP6872136B2 (en) | Image display device, display device, and adjustment method of display device | |
| EP3765894B1 (en) | Display panel, display apparatus, and method of driving display panel | |
| CN110488519B (en) | Liquid crystal display device, electronic apparatus, and control method of electronic apparatus | |
| US20180188538A1 (en) | Near eye display multi-component dimming system | |
| US20120140147A1 (en) | Display panel, display system, portable terminal and electronic device | |
| US20180188536A1 (en) | Near eye display multi-component dimming system | |
| US11698557B2 (en) | Geometries for mitigating artifacts in see-through pixel arrays | |
| KR20150123915A (en) | Displays with local dimming elements | |
| US10674141B1 (en) | Apparatuses, systems, and methods for determining interpupillary distances of head-mounted displays | |
| KR20220091160A (en) | Augmented reality device and method for operating the same | |
| CN113835247B (en) | Display module, driving method thereof, display device and vehicle | |
| US11243448B2 (en) | Varifocal optical assembly providing astigmatism compensation | |
| CN109348012B (en) | Electronic device, control method thereof and control device thereof | |
| TW201527799A (en) | Display device | |
| JP5915205B2 (en) | Liquid crystal display substrate and liquid crystal display device | |
| TW200403492A (en) | Mask, substrate with light reflecting film, method for forming light reflecting film, method for manufacturing electro-optical device, electro-optical device, and electronic apparatus | |
| KR100998695B1 (en) | Visual angle regulation type display equipment | |
| JP2009204938A (en) | Liquid crystal display and electronic device | |
| CN112859323B (en) | Display panel, display device and display method | |
| CN108983464A (en) | Leaded light component and production method, eyeball tracking mould group and method, video glass | |
| CN109709718B (en) | Wearable device | |
| JP2017203952A (en) | Image display device, glasses type image display device, and binocular image display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |