CN112882306A - Display device and driving method thereof - Google Patents
Display device and driving method thereof Download PDFInfo
- Publication number
- CN112882306A CN112882306A CN202110275678.0A CN202110275678A CN112882306A CN 112882306 A CN112882306 A CN 112882306A CN 202110275678 A CN202110275678 A CN 202110275678A CN 112882306 A CN112882306 A CN 112882306A
- Authority
- CN
- China
- Prior art keywords
- ink
- electrode
- display
- display device
- charged
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- 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
- G02F1/1676—Electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Crystallography & Structural Chemistry (AREA)
- Theoretical Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The application discloses a display device and a driving method thereof, which are used for improving the light transmittance of a photosensitive device setting area and improving the shooting effect of a photosensitive element. An embodiment of the present application provides a display device, display device includes: the display panel is positioned on the photosensitive device deviated from the light emitting side of the display panel; the display panel includes: the display panel comprises a first display area and at least one second display area positioned in the first display area, wherein the orthographic projection of the photosensitive device on the display panel falls into the second display area; the second display area includes: an electronic ink layer configured to: and in the photosensitive stage of the photosensitive device, the electronic ink layer is controlled to form a light-transmitting channel.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a display device and a driving method thereof.
Background
The splicing of the liquid crystal screen has the characteristics of more pixels, fine display and small influence of ambient light, and is widely applied to the field of oversized display at present. In the correlation technique, one of the large-size display product camera setting schemes is a camera scheme under the screen, but because the light transmittance of the color film layer of the liquid crystal screen is low, the camera scheme under the screen causes the light transmittance of the camera setting area to be low, and the shooting effect of the camera is influenced.
Disclosure of Invention
The embodiment of the application provides a display device and a driving method thereof, which are used for improving the light transmittance of a photosensitive device setting area and improving the shooting effect of a photosensitive element.
An embodiment of the present application provides a display device, display device includes: the display panel is positioned on the photosensitive device deviated from the light emitting side of the display panel; the display panel includes: the display panel comprises a first display area and at least one second display area positioned in the first display area, wherein the orthographic projection of the photosensitive device on the display panel falls into the second display area;
the second display area includes: an electronic ink layer configured to: and in the photosensitive stage of the photosensitive device, the electronic ink layer is controlled to form a light-transmitting channel.
In some embodiments, the second display area further comprises: the electronic ink layer comprises an upper substrate, a lower substrate, a first electrode layer and a second electrode layer, wherein the upper substrate and the lower substrate are oppositely arranged on the electronic ink layer;
the electronic ink layer includes: a plurality of first sub-pixels, each first sub-pixel comprising: at least one ink unit, each ink unit comprising: at least two types of electrically opposite charged ink particles.
In some embodiments, the first electrode layer comprises: a plurality of first electrode groups corresponding to the ink units one to one; each first electrode group comprises a first electrode and a second electrode which are insulated from each other;
the second electrode layer includes: a plurality of second electrode groups corresponding to the ink units one to one; each second electrode group comprises a third electrode and a fourth electrode which are insulated from each other.
In some embodiments, an orthographic projection of the first electrode on the lower substrate overlaps an orthographic projection of the third electrode on the lower substrate, and an orthographic projection of the second electrode on the lower substrate overlaps an orthographic projection of the fourth electrode on the lower substrate.
In some embodiments, the orthographic projection of the ink unit on the lower substrate has an overlapping region with the gap between the third electrode and the fourth electrode on the orthographic projection of the lower substrate.
In some embodiments, the two types of electrically opposite charged ink particles in each ink unit have different colors.
In some embodiments, the ink unit specifically includes: a plurality of red charged ink particles, and a plurality of green charged ink particles.
In some embodiments, the first display area comprises: a liquid crystal cell;
the display device further includes: the backlight module is positioned on one side, away from the upper substrate, of the lower substrate and comprises a plurality of blue light electroluminescent devices which are arranged in an array mode.
In some embodiments, the plurality of ink units includes: a red ink cell, a blue ink cell, and a green ink cell;
the red ink unit includes: a plurality of red charged ink particles, and a plurality of white charged ink particles;
the blue ink unit includes: a plurality of blue charged ink particles, and a plurality of white charged ink particles;
the green ink unit includes: a plurality of green charged ink particles, and a plurality of white charged ink particles;
the white charged ink particles have the same electrical property in different types of ink units.
In some embodiments, the first subpixel comprises a plurality of ink units;
the types of colors of the charged ink particles included in different ink units are the same.
In some embodiments, the first display region includes a plurality of second sub-pixels arranged in an array;
the size of the first sub-pixel is the same as the size of the second sub-pixel.
An embodiment of the application provides a method for driving the display device, where the method includes:
a display stage, controlling a first display area and a second display area of a display panel to display a current picture;
and in the image acquisition stage, the electronic ink layer in the second display area of the display panel is controlled to form a light transmission channel, and the photosensitive device is controlled to acquire images through the light transmission channel.
The display device and the driving method thereof provided by the embodiment of the application have the advantages that the electronic ink layer is arranged in the second display area of the display panel, the photosensitive device is in the photosensitive stage, the charged particles in the electronic ink layer are controlled to move, so that the electronic ink layer forms a light transmission channel, and the photosensitive device can receive external environment light through the light transmission channel so as to collect images. The light transmittance of the second display area can be improved, and the image acquisition effect is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic cross-sectional view along AA' in FIG. 1 provided by an embodiment of the present application;
fig. 3 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 5 is a schematic diagram of a driving method of a display panel according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
It should be noted that the sizes and shapes of the figures in the drawings are not to be considered true scale, but are merely intended to schematically illustrate the present disclosure. And the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
An embodiment of the present application provides a display device, as shown in fig. 1 and 2, the display device includes: the display panel 1, the photosensitive device 26 located at the side departing from the light-emitting side of the display panel 1; the display panel 1 includes: a first display area 2, and at least one second display area 3 located in the first display area 2, wherein the orthographic projection of the photosensitive device 26 on the display panel 1 falls into the second display area 3;
the second display area 3 includes: an electronic ink layer 8, the electronic ink layer 8 configured to: the electronic ink layer 8 is controlled to form a light-transmitting channel during the light-sensing phase of the light-sensing device 26.
The display device that this application embodiment provided is provided with the electronic ink layer in display panel's the second display area, and photosensitive device sensitization stage, the charged particle in the control electronic ink layer removes and to make electronic ink layer form printing opacity passageway, like this, photosensitive device alright with receive external environment light through printing opacity passageway to carry out image acquisition. The light transmittance of the second display area can be improved, and the image acquisition effect is improved.
Fig. 2 may be a cross-sectional view along AA' in fig. 1, for example.
In some embodiments, as shown in FIG. 2, first display region 2 includes a liquid crystal cell 28. Liquid crystal cell 28 includes: an array substrate 5 and an opposite substrate 6 which are oppositely arranged, and a liquid crystal layer 7 which is positioned between the array substrate 5 and the opposite substrate 6.
In specific implementation, the array substrate includes, for example: the display device comprises a thin film transistor driving circuit and a pixel electrode, wherein the opposite substrate comprises a color film layer and a black matrix. The common electrode may be disposed on the array substrate or the opposite substrate.
In some embodiments, as shown in fig. 2, the display device further includes: and a backlight module 27 between the display panel and the photo sensing device 26.
In some embodiments, as shown in fig. 2, the backlight module 27 has an opening, and the orthographic projection of the photosensitive device 26 falls within the orthographic projection of the opening. Therefore, the backlight module can not influence the sensitization of the sensitization device.
In some embodiments, as shown in fig. 1, the display panel further includes a peripheral region 4, and the second display region 3 may be adjacent to the peripheral region 4, for example.
In some embodiments, as shown in fig. 3, the second display area further comprises: an upper substrate 9 and a lower substrate 10 which are oppositely arranged on the electronic ink layer 8, a first electrode layer 18 positioned between the upper substrate 9 and the electronic ink layer 8, and a second electrode layer 19 positioned between the electronic ink layer 8 and the lower substrate 10;
the electronic ink layer 8 includes: a plurality of first sub-pixels 11, each of the first sub-pixels 11 comprising: at least one ink unit 12, each ink unit 12 comprising: at least two electrically oppositely charged ink particles 16.
In the display device provided by the embodiment of the application, the electronic ink unit in the electronic ink layer includes the charged ink particles with opposite electrical properties, and the charged ink particles with opposite electrical properties in the electronic ink unit can move in different directions under the control of the first electrode layer and the second electrode layer, so that the charged ink particles with opposite electrical properties are respectively located at two sides of the electronic ink unit, and thus, a light transmission channel is formed in the electronic ink unit. Thus, the photosensitive device can receive the external environment light through the light-transmitting channel. Compared with the scheme that the second display area is provided with the color film layer in the related art, the light transmittance of the light transmission channel formed by the electronic ink layer is greater than that of the color film layer, so that the light transmittance of the second display area can be improved and the image acquisition effect can be improved by the display device provided by the embodiment of the application.
In particular implementations, the electronic ink unit may be, for example, a microcapsule as shown in fig. 3. Alternatively, the electronic ink unit may be a microcavity structure. In addition to the charged ink particles, the electronic ink unit further includes: a transparent liquid.
It should be noted that the light transmittance of the color film is only 6% to 7%, and the light transmittance of the light transmission channel formed by the electronic ink unit can reach 20% to 30%, and compared with a scheme in which the color film is disposed in the second display region in the related art, the display device provided in the embodiment of the application can greatly improve the light transmittance of the second display region in the image acquisition stage, and improve the image acquisition effect.
In specific implementation, a hollow-out area can be arranged in the second display area of the liquid crystal box, the electronic ink structure is manufactured independently, and then the electronic ink structure is placed in the hollow-out area of the liquid crystal box and spliced with the liquid crystal box, so that the display panel provided by the embodiment of the application is obtained. In specific implementation, the electronic ink structure and the liquid crystal box can be spliced by gluing. Therefore, the abutted seam between the electronic ink structure and the liquid crystal box is small as much as possible, and the display effect is ensured. For example, the electronic ink structure may be attached to the liquid crystal cell by using a double-sided tape, or the electronic ink structure may be attached to the liquid crystal cell by using a liquid adhesive, and then the liquid adhesive is cured.
Of course, the lower substrate may be used as a substrate in the array substrate, and the upper substrate may be used as a substrate in the opposite substrate, that is, the liquid crystal display array substrate and the opposite substrate and the liquid crystal layer are formed in the first display region, and the electronic ink structure is formed in the second display region. Compared with the scheme of splicing an electronic ink structure and a liquid crystal box, the splicing seams can be reduced, and the display effect is further improved.
In some embodiments, as shown in fig. 3, the first electrode layer 18 includes: a plurality of first electrode groups 20 corresponding one-to-one to the ink units 12; each of the first electrode groups 20 includes a first electrode 22 and a second electrode 23 insulated from each other;
the second electrode layer 19 includes: a plurality of second electrode groups 21 corresponding one-to-one to the ink units 12; each of the second electrode groups 21 includes a third electrode 24 and a fourth electrode 25 insulated from each other.
That is, the display device provided in the embodiment of the present application controls the movement of the charged ink particles in one ink unit through a set of the first electrode, the second electrode, the third electrode, and the fourth electrode.
In some embodiments, as shown in fig. 3, an orthogonal projection of the first electrode 22 on the lower substrate 10 overlaps an orthogonal projection of the third electrode 24 on the lower substrate 10, and an orthogonal projection of the second electrode 23 on the lower substrate 10 overlaps an orthogonal projection of the fourth electrode 25 on the lower substrate 10.
In some embodiments, the first electrode, the second electrode, the third electrode, and the fourth electrode are bulk electrodes.
In some embodiments, as shown in fig. 3, the orthographic projection of the ink unit 12 on the lower substrate 10 and the gap between the third electrode 24 and the fourth electrode 25 have an overlapping region on the orthographic projection of the lower substrate 10.
Therefore, when the first electrode, the second electrode, the third electrode and the fourth electrode are used for controlling the charged ink particles with opposite electrical properties in the ink unit, the first electrode and the third electrode can be loaded with positive voltage and the second electrode and the fourth electrode can be loaded with negative voltage, so that the charged ink particles with opposite electrical properties move to the side close to the first electrode and the third electrode and the side close to the second electrode and the fourth electrode respectively, a light transmitting channel is formed between the charged ink particles with opposite electrical properties, and the photosensitive element receives external environment light.
In a specific implementation, the display panel further includes a signal line electrically connected to the first electrode layer and the second electrode layer, and the signal may be bound to the flexible circuit board, for example, at a side of the display panel away from the light exit surface, where the side is led out from the edges of the first display area and the second display area. And voltage signals are provided to the first electrode layer and the second electrode layer through a driving chip electrically connected with the flexible circuit board.
In some embodiments, as shown in fig. 3 and 4, the two types of charged ink particles 16 in each ink unit 12 with opposite electrical properties have different colors.
In some embodiments, as shown in FIG. 3, the plurality of ink units 12 includes: a red ink cell 13, a blue ink cell 15, and a green ink cell 14;
the red ink unit 13 includes: a plurality of red charged ink particles R, and a plurality of white charged ink particles 17;
the blue ink unit 15 includes: a plurality of blue charged ink particles B, and a plurality of white charged ink particles 17;
the green ink unit 14 includes: a plurality of green charged ink particles G, and a plurality of white charged ink particles 17;
the white charged ink particles 17 have the same electrical property in the different types of ink cells 12.
In some embodiments, the red charged ink particles R, the blue charged ink particles B, and the green charged ink particles G have negative polarity, and the white charged ink particles have positive polarity, for example.
In specific implementation, when the ink unit needs to form a light-transmitting channel, the first electrode and the third electrode are applied with the same voltage, and the second electrode and the fourth electrode are applied with the same voltage. Thus, the charged ink particles with opposite electrical properties move left and right to form a light-transmitting channel, as shown in fig. 3, so that the external light 29 passes through the light-transmitting channel, and the photosensitive element receives the external light 29.
In a specific implementation, the red ink unit is taken as an example, when the display device displays, a voltage is not applied to the electrodes in the second electrode group, a positive voltage is applied to the first electrodes in the first electrode group, and a negative voltage is applied to the second electrodes, so that the red charged particles move to the left, the white charged particles move to the right, different proportions of the red charged ink particles are realized, and a red gray scale is realized through reflection. When the display device displays, a voltage is not applied to the electrodes in the second electrode group, and a positive voltage is applied to the first electrode and the second electrode in the first electrode group, so that the red charged ink particles move toward the upper substrate, and the full red gray scale is realized through reflection. When image acquisition is needed, positive voltage is loaded on the first electrode and the third electrode, negative voltage is loaded on the second electrode and the fourth electrode, so that the red charged ink particles move to one sides of the first electrode and the third electrode, and the white charged ink particles move to one sides of the second electrode and the fourth electrode, and a light transmission channel is formed between the red charged ink particles and the white charged ink particles. The control method of the blue ink unit and the green ink unit is the same as that of the red ink unit, and the description thereof is omitted.
Of course, in specific implementation, the first electrode and the third electrode may be applied with a negative voltage, and the second electrode and the fourth electrode may be applied with a positive voltage.
The display device that this application embodiment provided promptly sets up the electronic ink structure in the second display area, both can form the printing opacity passageway in the image acquisition stage for the sensitization device passes through the printing opacity passageway and gathers external environment light, can realize showing again in the display stage, can all carry out complete picture display in the first display area of display stage and second display area, improves display effect, promotes user experience.
In particular, when the display device includes a red ink unit, a blue ink unit, and a green ink unit, the second display area is reflective in the display stage.
When the display device includes a red ink unit, a blue ink unit, and a green ink unit, the backlight module includes, for example, a white light electroluminescent device. Of course, the backlight module may also include a blue electroluminescent device.
In a specific implementation, the electroluminescent device may be, for example, an inorganic light emitting diode or a micro-sized inorganic light emitting diode. The Micro-sized inorganic Light Emitting Diode may be, for example, a Mini Light Emitting Diode (Mini-LED) or a Micro Light Emitting Diode (Micro-LED).
Of course, in a specific implementation, when the display device includes a red ink cell, a blue ink cell, and a green ink cell, the white charged ink particles may be replaced with the black charged particles.
Alternatively, in specific implementation, when the display device includes a red ink cell, a blue ink cell, and a green ink cell, black charged ink particles may be added to the ink cells. For example, the black charged ink particles are opposite in electrical polarity to the white charged ink particles.
In this way, the second display region can realize a black state, so that the electronic ink structure of the second region can be consistent with the display of the liquid crystal cell when the liquid crystal cell displays in a normally black state.
Or, charged ink particles of other colors may be added to the ink units, so that the charged ink particles of the respective ink units except for white are mixed with the added charged ink particles to form a dark color, and when the liquid crystal cell displays a normally black state, the electronic ink structure of the second region may be similar to that of the liquid crystal cell. For example, blue charged ink particles may be added to a red ink cell, such that the red ink cell adds blue charged ink particles that are mixed and reflected to appear as a greenish black color close to black.
When the two electrically identical charged ink particles of the two colors are included in the ink unit, the two charged ink particles of the two colors may be set to have different charge amounts. Still taking the red ink unit as an example for explanation, the charge amount of the black charged particles is different from the charge amount of the red charged particles, so that the charged ink particles of different colors can be controlled to move to different positions by applying voltages to the first electrode layer and the second electrode, and corresponding gray scales can be realized.
Correspondingly, when the ink unit comprises the charged ink particles of three colors, the first electrode group further comprises a fifth electrode, the second electrode group further comprises a sixth electrode, and the fifth electrode and the sixth electrode are oppositely arranged. In a direction parallel to the plane of the display panel, the fifth electrode is located on a side of the first electrode facing away from the second electrode, and the sixth electrode is located on a side of the third electrode facing away from the fourth electrode. When a light-transmitting channel needs to be formed, positive voltages can be applied to the fifth electrode, the sixth electrode, the first electrode and the third electrode, and negative voltages can be applied to the second electrode and the fourth electrode.
Alternatively, in the second display region, a combination of transmissive display and reflective display is also possible.
In some embodiments, as shown in fig. 4, the ink unit 12 specifically includes: a plurality of red charged ink particles R, and a plurality of green charged ink particles G.
In some embodiments, the backlight module comprises a plurality of blue light electroluminescent devices arranged in an array; the display device further includes: and the blue light electroluminescent device is arranged at the edge of the photosensitive device.
Therefore, even if the backlight module is provided with the through holes in the area corresponding to the photosensitive device, backlight can be provided through the blue light electroluminescent device at the edge of the photosensitive device.
In some embodiments, the red charged ink particles R have a negative polarity and the green charged ink particles G have a positive polarity, for example. The red gray scale and the green gray scale are still displayed by reflection. When a blue gray scale is required, a light transmitting channel is formed between the red charged ink particles and the green charged ink particles by the control of the first electrode group and the second electrode group, and light emitted by the blue light electroluminescent device is transmitted through the light transmitting channel, so that the blue gray scale can be realized.
In particular implementation, black charged ink particles and/or white charged ink particles may also be added to the ink cells. In this way, the second display region can realize a black state or a white state, so that the electronic ink structure of the second region can be consistent with the display of the liquid crystal cell when the liquid crystal cell displays in a normally black state or in a white state.
Of course, whether the display device includes red, blue, and green ink cells or only one ink cell, the ink cells may include other colors of charged ink particles. In specific implementation, how many colors of charged ink particles are specifically included in the ink unit, and what colors of charged ink particles are specifically included in the ink unit can be selected according to actual needs. When the ink unit includes charged ink particles of N colors, the first electrode group and the second electrode group include N electrodes, respectively.
When the ink unit includes electrically charged ink particles of at least two colors having the same electrical property, the electrically charged ink particles of different colors having the same electrical property may be set to have different charge amounts. Therefore, the charged ink particles with different colors can be controlled to move to different positions by applying voltage to the first electrode layer and the second electrode, and corresponding gray scales are realized.
In some embodiments, the first display region includes a plurality of second sub-pixels arranged in an array;
the size of the first sub-pixel is the same as the size of the second sub-pixel.
In some embodiments, as shown in fig. 3 and 4, the first sub-pixel 11 includes only one ink unit 12.
Alternatively, in some embodiments, the first subpixel comprises a plurality of ink units;
the types of colors of the charged ink particles included in different ink units are the same.
For example, in a plurality of ink cells corresponding to one sub-pixel, each ink cell includes red charged ink particles and white charged ink particles, or includes blue charged ink particles and white charged ink particles, or includes green charged ink particles and white charged ink particles. Or, in a plurality of ink units corresponding to one sub-pixel, each ink unit comprises red charged ink particles and green charged ink particles.
In some embodiments, the photosensitive Device is a Charge-coupled Device (CCD).
The display device provided by the embodiment of the application is as follows: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device are understood by those skilled in the art, and are not described herein or should not be construed as limiting the present application.
Based on the same inventive concept, an embodiment of the present application further provides a driving method of the display device, as shown in fig. 5, including:
s101, a display stage, namely controlling a first display area and a second display area of a display panel to display a current picture;
s102, in an image acquisition stage, the electronic ink layer in the second display area of the display panel is controlled to form a light transmission channel, and the photosensitive device is controlled to acquire images through the light transmission channel.
In specific implementation, the display stage further includes: controlling the backlight module to be started;
the image acquisition phase further comprises: and controlling the backlight module to be closed.
In specific implementation, the controlling the electronic ink layer in the second display region of the display panel to form a light-transmitting channel specifically includes:
and providing the same voltage signal to the first electrode and the third electrode, and providing the same voltage signal to the second electrode and the fourth electrode, wherein the voltage signals of the first electrode and the second electrode are opposite in electrical property.
In specific implementation, when the second display area includes the red ink unit, the blue ink unit and the green ink unit, the display stage provides a voltage signal only to the first electrode layer.
In the specific implementation, when the ink units in the second display area include red charged particles and green charged particles, and the backlight module includes a blue electroluminescent device, in the display stage, for the ink units that do not need to form a light-transmitting channel, only the voltage signal is provided to the first electrode group corresponding to the ink units, and for the ink units that need to form a light-transmitting channel, the voltage signal is provided to the first electrode group and the second electrode group corresponding to the ink units.
In summary, the display device and the driving method thereof provided by the embodiment of the present application, the electronic ink layer is disposed in the second display region of the display panel, and the photosensitive device is in the photosensitive stage, and the charged particles in the electronic ink layer are controlled to move so that the electronic ink layer forms a light transmission channel, so that the photosensitive device can receive external environment light through the light transmission channel to perform image acquisition. The light transmittance of the second display area can be improved, and the image acquisition effect is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (12)
1. A display device, characterized in that the display device comprises: the display panel is positioned on the photosensitive device deviated from the light emitting side of the display panel; the display panel includes: the display panel comprises a first display area and at least one second display area positioned in the first display area, wherein the orthographic projection of the photosensitive device on the display panel falls into the second display area;
the second display area includes: an electronic ink layer configured to: and in the photosensitive stage of the photosensitive device, controlling the electronic ink layer to form a light-transmitting channel.
2. The display device according to claim 1, wherein the second display region further comprises: the electronic ink layer comprises an upper substrate, a lower substrate, a first electrode layer and a second electrode layer, wherein the upper substrate and the lower substrate are oppositely arranged on the electronic ink layer;
the electronic ink layer includes: a plurality of first subpixels, each of the first subpixels comprising: at least one ink unit, each said ink unit comprising: at least two types of electrically opposite charged ink particles.
3. The display device according to claim 2, wherein the first electrode layer comprises: a plurality of first electrode groups in one-to-one correspondence with the ink units; each first electrode group comprises a first electrode and a second electrode which are insulated from each other;
the second electrode layer includes: a plurality of second electrode groups in one-to-one correspondence with the ink units; each second electrode group comprises a third electrode and a fourth electrode which are insulated from each other.
4. The display device according to claim 3, wherein an orthogonal projection of the first electrode on the lower substrate overlaps an orthogonal projection of the third electrode on the lower substrate, and an orthogonal projection of the second electrode on the lower substrate overlaps an orthogonal projection of the fourth electrode on the lower substrate.
5. The display device according to claim 4, wherein an orthogonal projection of the ink unit on the lower substrate and an orthogonal projection of the gap between the third electrode and the fourth electrode on the lower substrate have an overlapping region.
6. The display device according to any one of claims 2 to 5, wherein the two electrically opposite charged ink particles in each of the ink units have different colors.
7. The display device according to claim 6, wherein the ink unit comprises in particular: a plurality of red charged ink particles, and a plurality of green charged ink particles.
8. The display device according to claim 7, wherein the first display region includes: a liquid crystal cell;
the display device further includes: the backlight module is positioned on one side, away from the upper substrate, of the lower substrate and comprises a plurality of blue light electroluminescent devices which are arranged in an array mode.
9. The display device according to claim 6, wherein the plurality of ink units include: a red ink cell, a blue ink cell, and a green ink cell;
the red ink unit includes: a plurality of red charged ink particles, and a plurality of white charged ink particles;
the blue ink unit includes: a plurality of blue charged ink particles, and a plurality of white charged ink particles;
the green ink unit includes: a plurality of green charged ink particles, and a plurality of white charged ink particles;
in the different types of the ink units, the electric properties of the white charged ink particles are the same.
10. The display device according to claim 6, wherein the first sub-pixel comprises a plurality of the ink units;
the types of colors of the charged ink particles included in different ones of the ink cells are the same.
11. The display device according to any one of claims 2 to 5 and 7 to 10, wherein the first display region includes a plurality of second sub-pixels arranged in an array;
the size of the first sub-pixel is the same as the size of the second sub-pixel.
12. A method of driving a display device according to any one of claims 1 to 11, the method comprising:
a display stage, controlling a first display area and a second display area of a display panel to display a current picture;
and in the image acquisition stage, the electronic ink layer in the second display area of the display panel is controlled to form a light transmission channel, and a photosensitive device is controlled to acquire images through the light transmission channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275678.0A CN112882306B (en) | 2021-03-15 | 2021-03-15 | Display device and driving method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110275678.0A CN112882306B (en) | 2021-03-15 | 2021-03-15 | Display device and driving method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112882306A true CN112882306A (en) | 2021-06-01 |
| CN112882306B CN112882306B (en) | 2023-08-29 |
Family
ID=76041784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110275678.0A Active CN112882306B (en) | 2021-03-15 | 2021-03-15 | Display device and driving method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112882306B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106557216A (en) * | 2015-09-30 | 2017-04-05 | 乐金显示有限公司 | Fingerprint sensor array and the display device with the fingerprint sensor array |
| CN109117792A (en) * | 2018-08-14 | 2019-01-01 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN110266861A (en) * | 2019-07-23 | 2019-09-20 | 京东方科技集团股份有限公司 | Display panel, display device |
| US20200133456A1 (en) * | 2016-11-24 | 2020-04-30 | Huizhou Tcl Mobile Communication Co., Ltd. | Fingerprint recognition module and mobile phone |
| CN111240121A (en) * | 2020-02-21 | 2020-06-05 | 京东方科技集团股份有限公司 | Transparent control device and display screen |
| CN112236774A (en) * | 2019-04-30 | 2021-01-15 | 京东方科技集团股份有限公司 | Grain recognition device and method for driving grain recognition device |
-
2021
- 2021-03-15 CN CN202110275678.0A patent/CN112882306B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106557216A (en) * | 2015-09-30 | 2017-04-05 | 乐金显示有限公司 | Fingerprint sensor array and the display device with the fingerprint sensor array |
| US20200133456A1 (en) * | 2016-11-24 | 2020-04-30 | Huizhou Tcl Mobile Communication Co., Ltd. | Fingerprint recognition module and mobile phone |
| CN109117792A (en) * | 2018-08-14 | 2019-01-01 | Oppo广东移动通信有限公司 | Electronic equipment |
| CN112236774A (en) * | 2019-04-30 | 2021-01-15 | 京东方科技集团股份有限公司 | Grain recognition device and method for driving grain recognition device |
| CN110266861A (en) * | 2019-07-23 | 2019-09-20 | 京东方科技集团股份有限公司 | Display panel, display device |
| CN111240121A (en) * | 2020-02-21 | 2020-06-05 | 京东方科技集团股份有限公司 | Transparent control device and display screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112882306B (en) | 2023-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11335284B2 (en) | Display panel and display device | |
| US20220093682A1 (en) | Display substrates, display panels and display devices | |
| US10854150B2 (en) | Display device and electronic apparatus | |
| US20240027835A1 (en) | Display panel and electronic device | |
| US11971622B2 (en) | Display device | |
| CN112037704B (en) | Display panel and electronic device | |
| US9891455B2 (en) | Display device and method for manufacturing the same | |
| JP2007334224A (en) | Liquid crystal display | |
| CN111983843B (en) | Display panel and electronic device | |
| US20080108393A1 (en) | Multi-panel display apparatus | |
| CN113655667B (en) | Reflective electronic paper display module, manufacturing method thereof and display device | |
| CN107463032B (en) | Liquid crystal display panel and display device | |
| US8363305B2 (en) | Full color electrophoretic display device | |
| CN117098425A (en) | Display panel, driving method and display device | |
| CN112882306B (en) | Display device and driving method thereof | |
| WO2022222912A1 (en) | Display panel and electronic device | |
| CN113053323B (en) | Display device and color coordinate adjusting method thereof | |
| WO2020238387A1 (en) | Display substrate, display panel and driving method for display panel | |
| US20120146961A1 (en) | Electronic paper | |
| US10712595B2 (en) | Full screen module and smartphone | |
| JP2011059215A (en) | Display device | |
| CN103309068A (en) | Display apparatus and electronic apparatus | |
| KR20180079045A (en) | Bliquid crystal display device | |
| CN214311229U (en) | Display module assembly and display device | |
| JP2009204899A (en) | Electrooptical device, elecronic equipment and driving method of electrooptical 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 |