CN109559649B - Display panel, display device, display control method and preparation method - Google Patents
Display panel, display device, display control method and preparation method Download PDFInfo
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- CN109559649B CN109559649B CN201910001723.6A CN201910001723A CN109559649B CN 109559649 B CN109559649 B CN 109559649B CN 201910001723 A CN201910001723 A CN 201910001723A CN 109559649 B CN109559649 B CN 109559649B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
Abstract
The invention provides a display panel, a display device, a display control method and a preparation method, wherein the display panel comprises a flexible substrate body and at least one first area, wherein the first area of the substrate body is provided with a plurality of mutually separated first packaging blocks, each first packaging block is internally packaged with at least one pixel unit, and a spacing area is formed between the adjacent first packaging blocks; wherein the first region can be stretched, when the stretching state of the first region is changed, the distance of the spacing region in the stretching direction is changed, and the pixel unit distribution density on the first region is changed. Adopt this display panel, utilize display panel's flexibility, divide regional encapsulation with the pixel unit on the display panel, the adaptation is by tensile state, and pixel unit distribution density changes, when setting up the response module in the below of display screen, guarantees under the prerequisite of the high image quality of display screen, satisfies the transmittance demand of response module during operation to display panel.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a display device, a display control method and a preparation method.
Background
In the current full-screen era of display panel development, all large panel manufacturers and terminals are actively researching narrow frame designs. The current narrow frame design scheme adopted by the display panel mainly comprises a compression design space, double-layer wiring, grooving or frame bending and the like. In addition, the module components such as the camera, the receiver and the sensor are arranged in the display screen, the frame of the display screen can be narrower, the narrow frame design scheme of the display panel is formed, and the narrow frame design scheme accords with the market trend of the existing display products.
When the module components such as the camera, the receiver, and the sensor are disposed inside the display screen, the existing implementation method is to design the portion of the display screen corresponding to the module components to be transparent, however, because the film layers such as the metal layer and the luminescent material exist on the display screen, the visible light or the infrared light required by the operation of the module components such as the camera and the sensor is blocked and absorbed by the film layers, so that the penetration rate is very low, and therefore, the transmittance of the portion cannot well meet the use requirement; another way to solve this problem is to remove the part of the display first region or to preserve the display first region but to reduce the pixel density (Pixels Per inc, PPI), but this solution also has a problem of affecting the display effect in normal use.
Therefore, in order to realize the narrow frame design of the display panel, when the module components such as the camera, the receiver, the sensor and the like are arranged below the display screen, how to ensure the normal display effect of the display screen when the display screen displays the screen and ensure the transmittance requirement of the modules during working becomes a research focus of the display panel with the structure.
Disclosure of Invention
The technical scheme of the invention aims to provide a display panel, a display device, a display control method and a preparation method, and solves the problem that when module components such as a camera, a receiver and a sensor are arranged below a display screen, in order to ensure the display quality of the display screen, the transmittance of the display panel cannot meet the working requirements of the module components.
The present invention provides a display panel, comprising:
the flexible substrate body comprises at least one first area, a plurality of mutually separated first packaging blocks are arranged on the first area of the substrate body, at least one pixel unit is packaged in each first packaging block, and a spacing area is formed between every two adjacent first packaging blocks;
wherein the first region is stretchable, when the stretching state of the first region is changed, the distance between the spacers in the stretching direction is changed, and the pixel unit distribution density on the first region is changed.
Optionally, in the display panel, the first package blocks are respectively arranged at intervals along a first direction, each of the first package blocks has a plurality of pixel units packaged therein, and the plurality of pixel units are arranged along a second direction, where the first direction is perpendicular to the second direction, and the first direction is parallel to a direction in which the first region can be stretched.
Optionally, the display panel, wherein the first region is stretchable in a first direction and a second direction perpendicular to each other, wherein the first region has M rows of the first encapsulation blocks arranged along the first direction, and N columns of the first encapsulation blocks arranged along the second direction; wherein M and N are both integers greater than 1.
Optionally, in the display panel, each of the first package blocks is formed in a quadrilateral shape.
Optionally, the display panel, wherein, on the first region, an opening for penetrating through two opposite surfaces of the substrate body in a stretched state is provided between the first package blocks adjacent in the stretching direction.
Optionally, the display panel, wherein the opening is formed in a shape of a bar or a cross.
Optionally, the display panel, wherein a second encapsulation block is disposed on at least a second region of the substrate body, and a plurality of pixel units are encapsulated in the second encapsulation block.
Optionally, the display panel, wherein the substrate body includes two second regions, the two second regions are disposed along a stretched direction of the first region, and the first region is located between the two second regions.
The embodiment of the invention also provides a display module, which comprises the display panel.
Optionally, the display module, wherein the display module further includes:
a stretching driving structure connected with the substrate body, the stretching driving structure being configured to drive a stretching state change of the first region.
Optionally, when the plurality of first encapsulation blocks are arranged at intervals along a first direction, the stretching driving structure is configured to drive a stretching state of the first region along the first direction to change.
Optionally, in the display module, when M rows of the first encapsulation blocks are arranged in the first region along the first direction and N columns of the first encapsulation blocks are arranged in the second direction, the stretching driving structure is configured to drive a change in a stretching state of the first region along the first direction and drive a change in a stretching state of the first region along the second direction.
Optionally, the display module, wherein the stretching driving structure includes:
the two fixing pieces are arranged at intervals and are respectively connected with the substrate body;
the orthographic projection of the telescopic piece on the plane of the first area is positioned in the first area, or the orthographic projection of the telescopic piece on the plane of the first area crosses two opposite edges of the first area;
the driving piece is configured to drive the length of the telescopic piece to change, so that the distance between the two fixing pieces is changed, and the stretching state of the first area is changed.
Optionally, the display module, wherein the telescopic member includes:
the air bag is positioned between the two fixing pieces;
the driving piece comprises an air pump and is used for controlling the change of the amount of air in the air bag, and the distance between the two fixing pieces is changed.
Optionally, the display module, wherein the telescopic member further includes: the sliding block is arranged between the two fixing pieces in a sliding manner;
the gas quantity in the gas bag changes, the gas bag is abutted to the sliding block, and the sliding block is pushed to move between the two fixing pieces.
The embodiment of the invention also provides a display device, wherein the display device comprises the display module.
Optionally, the display device, wherein when the display module includes a stretching driving structure connected to the substrate body, the stretching driving structure is configured to drive a stretching state of the first region to change, the display device further includes:
a controller connected with the stretching driving structure and configured to output a control signal to the stretching driving structure, so that the stretching driving structure drives the stretching state of the first region to change in response to the control signal.
Optionally, the display device, wherein the display device further includes:
the sensing module is arranged on one side of the substrate body, which is far away from the pixel unit, and sensing media required by the sensing module are transmitted to the sensing module through the first area;
the controller is configured to monitor a first signal for controlling the induction module to start, respond to the first signal, output a first control signal to the stretching driving structure, and control the stretching driving structure to enable the first area to be in a first stretching state; monitoring a second signal for controlling the induction module to be closed, responding to the second signal, outputting a second control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a second stretching state;
in the first stretched state, the pixel cells on the first area have a first distribution density; in the second stretched state, the pixel cells on the first area have a second distribution density; the second distribution density is greater than the first distribution density.
Optionally, in the display device, when a second encapsulation block is disposed on at least a second region of the substrate body, and a plurality of pixel units are encapsulated in the second encapsulation block, the distribution density of the pixel units in the second region is equal to the second distribution density.
Optionally, the display device, wherein the display device further includes:
a housing having an adjustable receiving space, wherein the display panel is disposed in the receiving space; the shell is configured to be capable of adjusting the size of the accommodating space according to the change of the stretching state of the first area.
The embodiment of the present invention further provides a display control method of a display device, where the display device includes a display panel, and the display panel includes: the flexible substrate comprises a flexible substrate body, wherein at least one first area of the substrate body is provided with a plurality of mutually separated first packaging blocks, and each first packaging block is internally packaged with at least one pixel unit;
the sensing module is arranged on one side, away from the pixel unit, of the substrate body, and sensing light required by the sensing module is incident to the sensing module through the first area;
a stretching driving structure connected with the substrate body, wherein the stretching driving structure is configured to drive the stretching state of the first region to change; through the change of the stretching state of the first area, the spacing distance between the first packaging blocks is changed, and the distribution density of the pixel units on the first area is changed;
wherein the method comprises the following steps:
monitoring the working state of the induction module;
and outputting a control signal to the stretching driving structure according to the working state of the induction module, so that the stretching driving structure responds to the control signal to drive the stretching state of the first area to change.
Optionally, the display control method, wherein the outputting a control signal to the stretching driving structure according to the working state of the sensing module, so that the stretching driving structure responds to the control signal to drive the stretching state of the first region to change includes:
when a first signal for controlling the induction module to start is obtained, responding to the first signal, outputting a first control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a first stretching state;
when a second signal for controlling the induction module to be closed is obtained, responding to the second signal, outputting a second control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a second stretching state;
wherein in the first stretched state, the pixel cells on the first area have a first distribution density; in the second stretched state, the pixel cells on the first area have a second distribution density; the second distribution density is greater than the first distribution density.
The embodiment of the invention also provides a preparation method of the display panel, wherein the preparation method comprises the following steps:
providing a flexible substrate body;
preparing a driving layer on the substrate body;
etching the driving layer, and forming a plurality of separated block-shaped structures in a first area of the driving layer;
preparing a light emitting layer on the driving layer to form a plurality of pixel units;
and packaging the pixel units, wherein the driving layers of the block structures in the first area are respectively packaged into a first packaging block, and at least one pixel unit is packaged in the first packaging block.
At least one of the above technical solutions of the specific embodiment of the present invention has the following beneficial effects:
according to the display panel, the pixel units on the display panel are packaged in the regions, the pixel units arranged on the display panel corresponding to the sensing module are spaced through the packaging blocks, the flexible stretchability of the flexible display panel is utilized, the arrangement regions of the pixel units can adapt to the stretched state, when the arrangement regions are stretched, the distribution density of the pixel units is changed, and when the sensing module is arranged below the display screen, the requirement on the transmittance of the display panel during the working of the sensing module is met on the premise of ensuring the high image quality of the display screen.
Drawings
FIG. 1 is a schematic cross-sectional view illustrating a display panel according to an embodiment of the present invention;
fig. 2 is a schematic plan view illustrating a display panel according to a first embodiment of the present invention;
FIG. 3 is a schematic plane structure diagram of the display panel shown in FIG. 2 in a stretched state;
FIG. 4 is a schematic plan view illustrating a second embodiment of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a first sealing block in the display panel according to the embodiment of the invention;
FIG. 6 is a schematic structural diagram of another first sealing block in the display panel according to the embodiment of the invention;
fig. 7a and 7b are schematic views illustrating a structure of providing an opening in a substrate body of a display panel according to an embodiment of the present invention;
FIG. 8 is a schematic view of a display panel being stretched when an opening employing one of the embodiments is provided;
FIG. 9 is a schematic view illustrating a state where the display panel is not stretched when the opening of another embodiment is formed;
FIG. 10 is a schematic view showing a state in which the display panel is stretched when the opening of the embodiment shown in FIG. 9 is provided;
fig. 11a to 11d are schematic partial process diagrams illustrating a display panel according to an embodiment of the invention;
fig. 12 is a schematic cross-sectional structure view of a display module according to an embodiment of the invention;
fig. 13 is a schematic view of a first embodiment of a stretching driving structure disposed in the display module according to the embodiment of the invention;
FIG. 14 is a schematic diagram illustrating a second exemplary structure of a stretching driving structure disposed in the display module according to the embodiment of the invention;
FIG. 15 is a schematic diagram illustrating a third exemplary structure of a stretching driving structure disposed in the display module according to the embodiment of the invention;
FIG. 16 is a schematic diagram illustrating a fourth exemplary structure of a stretch driver structure disposed in a display module according to an embodiment of the disclosure;
fig. 17a and 17b are schematic views of two usage states of the display device according to the embodiment of the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
In the structural design of the display panel, when the induction module is arranged below the display screen, in order to ensure the normal display effect of the display screen when the display screen displays a picture and ensure the transmittance requirement of the induction module when the induction module works, the display panel provided by the embodiment of the invention encapsulates pixel units on the display panel in regions, so that the pixel units arranged on the display panel corresponding to the induction module are mutually spaced through the encapsulation blocks, the flexible stretchability of the flexible display panel is utilized, the arrangement region of the pixel units can adapt to the stretched state, and when the arrangement region is stretched, the distribution density of the pixel units is reduced, so that the light transmittance is increased, and the transmittance requirement of the induction module when the induction module works is met; when the setting area is not stretched, the distribution density of the pixel units in the setting area can meet the normal display effect of the display screen.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention. Referring to fig. 1, the display panel according to the embodiment of the present invention includes:
the liquid crystal display device comprises a flexible substrate body 100, wherein at least one first region 110 of the substrate body 100 is provided with a plurality of mutually separated first packaging blocks 111, each first packaging block 111 is internally packaged with at least one pixel unit 1111, and a spacing region is formed between every two adjacent first packaging blocks 111;
wherein the first region 110 can be stretched, when the stretching state of the first region 110 changes, the width of the spacer in the stretching direction changes, and the pixel unit distribution density on the first region 110 changes.
In the display panel according to the embodiment of the invention, the pixel units 1111 of the first region 110 on the flexible substrate body 100 are respectively encapsulated to form a plurality of first encapsulation blocks 111 separated from each other, so that the first region 110 can be stretched by utilizing the flexible stretchability of the substrate body 100, when the first region 110 is stretched, the area of the first region 110 is changed, but the distribution density of the pixel units on the first region 110 is changed because the distribution number of the pixel units on the first region 110 is not changed. When the sensing module is applied below the first region 110, when the sensing module works, the distribution density of the pixel units 1111 is reduced according to the stretching of the substrate body 100, so as to meet the transmittance requirement; when the sensing module does not need to work, the substrate body 100 is restored to a normal state, and the distribution density of the pixel units 1111 is increased compared with that of the sensing module during working, so as to meet the requirement of normal display.
In the embodiment of the present invention, the sensing module includes, but is not limited to, a camera, an earpiece and a light sensor. By adopting the display panel of the embodiment of the invention, the induction module can be arranged at the position below the first area 110, and the induction medium is transmitted to the induction module through the first area 110. When the sensing module is a camera or an optical sensor, sensing light is transmitted to the sensing module through the first area 110, and when the sensing module is a receiver, sound waves are transmitted to the sensing module through the first area 110.
Therefore, by adopting the display panel, when the module components such as the camera, the receiver, the sensor and the like are arranged at the lower position of the display screen, the normal display effect of the display screen when the display screen displays a picture can be ensured, and the transmittance requirement of the modules during working can be ensured.
In the first implementation manner of the display panel according to the embodiment of the present invention, as shown in fig. 2, optionally, the plurality of first package blocks 111 are respectively arranged at intervals along a first direction a, each of the first package blocks 111 is internally packaged with a plurality of pixel units 1111, and the plurality of pixel units 1111 are arranged in at least one row along a second direction b, where the first direction a is perpendicular to the second direction b.
Specifically, the first direction a is parallel to a direction in which the first region 110 can be stretched when the display panel is mounted to the display device.
In the above-mentioned implementation structure, optionally, a row of pixel units arranged along the second direction b is packaged in each first package block 111, and certainly, at least two rows of pixel units arranged along the second direction b may also be packaged. With this arrangement, in the first region 110, the display panel is arranged in a structure in which the display panel can be stretched in the first direction a perpendicular to the second direction b by encapsulating the plurality of rows of the pixel units 1111 arranged in the second direction b, and when the flexible substrate body 100 is stretched in the first direction a, the distance between the plurality of rows of the first encapsulation blocks 111 increases in the first region 110, and the arrangement of the pixel units 1111 is not affected, as shown in fig. 3.
In the first implementation manner of the display panel according to the embodiment of the present invention, as shown in fig. 4, optionally, the first area 110 may be stretched in both a first direction a and a second direction b perpendicular to each other, and the plurality of first package blocks 111 are distributed in an array on the first area 110. Specifically, M rows of first package blocks 111 are arranged on the first region 110 along the first direction a, and N columns of first package blocks 111 are arranged along the second direction b; wherein M and N are both integers greater than 1.
Alternatively, each first package block 111 is formed in a quadrilateral shape, and when a plurality of first package blocks 111 are distributed in an array on the first region 110, one pixel unit 1111 is packaged in each first package block 111, or at least two pixel units with the same number are packaged in each first package block 111, and the first package blocks 111 are formed in a quadrilateral shape.
For example, the number of the pixel units 1111 packaged in each first package block 111 may be three, and the three pixel units may be arranged in a row or a column to form a quadrilateral first package block 111, as shown in fig. 5; alternatively, the number of the pixel units 1111 packaged in each first package block 111 may be four, the four pixel units 111 may be arranged in one column or one row to form the first package block 111 having a quadrilateral shape, or the four pixel units may be arranged in two rows and two columns to form the first package block 111 having a quadrilateral shape as shown in fig. 6.
With this arrangement, in the first region 110, according to the characteristic that the plurality of pixel units 1111 are distributed in the array in the first region 110, when the plurality of pixel units 1111 are packaged, the plurality of first package blocks 111 obtained after packaging are also distributed in the array, as shown in fig. 4, the plurality of first package blocks 111 distributed in the array are respectively arranged at intervals in the first direction a and the second direction b. In this way, the display panel is configured to be stretchable in both the first direction a and the second direction b. When stretched in the first direction a or the second direction b, the spacing distance between the plurality of first package blocks 111 increases, and does not affect the arrangement of the pixel unit 1111.
In the embodiment of the present invention, optionally, as shown in fig. 7a and 7b, on the first region 110, an opening 112 penetrating through two opposite surfaces of the substrate body 100 is disposed between adjacent first package blocks 111, and optionally, the number of the openings 112 is multiple. The opening 112 is located between two adjacent first package blocks 111 in the stretching direction, and when the first region 110 is in the stretching state, the opening 112 is in a through hole state penetrating through two opposite surfaces of the substrate body 100; when the first region 110 is not stretched, the opening 112 is in a slit state penetrating through two opposite surfaces of the substrate body 100. As shown in fig. 7a and 7b, a plurality of openings 112 may be disposed between two adjacent rows of first package blocks 111 on the substrate body 100. Alternatively, as shown in fig. 7a and 7b, when the display panel is configured to be capable of being stretched in the first direction a, when not stretched, the plurality of openings 112 are formed in the form of slits in a stripe shape, the plurality of openings 112 are arranged in the second direction b in a plurality of rows, and the length direction of each opening 112 is parallel to the second direction b, referring to fig. 8, when the display panel is stretched in the first direction a, the first region 110 is outwardly expanded, the plurality of openings 112 are stretched, the area is increased, and the light transmittance of the first region 110 is further increased.
Alternatively, when the display panel is configured to be able to be stretched in both the first direction a and the second direction b, alternatively, as shown in fig. 9, the plurality of openings 112 are formed in the form of slits crossing in a cross corresponding to the first direction a and the second direction b when not stretched. As shown in fig. 10, when the first region of the display panel is stretched in the first direction a, or in the second direction b, or in both the first direction a and the second direction b, the opening 112 may be stretched to increase the area, thereby increasing the light transmittance of the first region 110.
In the display panel according to the embodiment of the invention, optionally, as shown in fig. 1 to 4, a second package block 121 is disposed on at least one second region 120 of the substrate body 100, and a plurality of pixel units 1111 are packaged in the second package block 121. Specifically, the first region 110 is a setting region where the sensing module corresponds to the display panel, that is, the sensing module is located below the display panel, and the orthographic projection of the sensing module on the display panel is located in the first region 110.
Wherein the second region 120 is a region other than the first region 110, and on the substrate body 100, according to the arrangement position of the first region 110, all regions of the substrate body 100 except the first region 110 may be determined as the second region 120, that is, all pixel units 1111 except the first region 110 are packaged together to form a second package block; alternatively, all the regions of the substrate body 100 except the first region 110 may be divided into at least two parts, each part is a second region 120, and all the pixel units 1111 in each second region 120 are packaged. As shown in fig. 2, for example, two second regions 120 are respectively formed on two sides of the first region 110, and the pixel units 1111 in each second region 120 are packaged together to respectively form a second package block 121. That is, the substrate body 100 includes two second regions 120, the two second regions 120 are disposed along the stretched direction of the first region 110, and the first region 110 is located between the two second regions 120.
Specifically, when all the pixel units in the second area 120 are packaged together in a surface-mount manner, only the first area 110 and not the second area 120 of the display panel according to the embodiment of the present invention can be stretched. That is, when the first region 110 is stretched in the first direction a, or in the second direction b, or in both the first direction a and the second direction b, preferably, only the first region 110 is stretched.
It should be noted that the pixel units in the second region 120 located at two sides of the first region 110 may also be packaged separately to form a plurality of mutually separated package blocks, and specifically, the pixel units 1111 in the second region 120 may be packaged according to the package form of the pixel units 1111 in the first region 110, so that when the first region 110 is stretched, the second region 120 can also be stretched.
In the embodiment of the present invention, the first region 110 is located between the two second regions 120, which is only an example of the position of the first region 110 on the display panel. It is to be understood that this illustration is only used to illustrate the principle of the display panel arrangement structure according to the embodiment of the present invention, and various implementation positions of the first region 110 on the display panel are not illustrated herein.
In the embodiment of the present invention, the display panel is formed as an OLED panel, and the pixel unit 111 includes a thin film transistor array and an OLED light emitting layer, wherein the thin film transistor array is used for driving the OLED light emitting layer to emit light.
With reference to fig. 11a to 11d, the manufacturing process of the display panel according to the above-mentioned implementation structure of the embodiment of the present invention includes:
1) preparing a flexible substrate body 100 on a rigid substrate 1; it is understood that the substrate body 100 may be prepared by coating, and is not limited to this preparation;
2) according to fig. 7a to 10, when the opening 112 needs to be disposed on the substrate body 100, the opening 112 is etched on the substrate body 100 corresponding to the portion where the first region 110 is formed; this preparation process is not necessarily required;
3) preparing a driving layer 2, namely preparing a thin film transistor array, on the substrate body 100; when the first region 110 only needs to be stretched along one direction, the driving layer 2 of the first region 110 is etched into strips spaced from each other along the stretched direction, and connected by routing, that is, corresponding to the structural form of the first package block 111 shown in fig. 2; when the first region 110 needs to be capable of being stretched along two perpendicular directions, the driving layer 2 of the first region 110 is etched into a plurality of blocks separated from each other and connected by routing, that is, corresponding to the structural form shown in fig. 4 where the first package block 111 needs to be formed; in the embodiment of the invention, the connection traces for connecting the portions of the driving layer 2 are located on the substrate body 100 and are disposed along the interval between the adjacent strip-shaped or block-shaped driving layers 2, so as to avoid affecting the stretching of the first region 110 of the substrate body 100. Optionally, the connection traces are formed on the substrate body 100 in a bent "S" shape to adapt to the stretching state of the first region 110.
4) Preparing an OLED light emitting layer on the driving layer 11 to form a plurality of pixel units 1111, wherein the OLED light emitting layer may be prepared by evaporation or printing;
5) the prepared pixel unit 1111 is packaged as shown in fig. 1; for the first region 110, the mutually spaced driving layers 2 correspond to the first package blocks 111 formed by packaging one by one; specifically, when the driving layer 2 of the first area 110 is etched into a plurality of mutually separated strips, the driving layer 2 corresponding to each strip is packaged into one first package block 111, that is, as shown in fig. 2, a plurality of rows of first package blocks 111 are packaged in the first area 110; when the driving layer 2 of the first region 110 is etched into a plurality of mutually separated blocks, the driving layer 2 corresponding to each block is respectively packaged into a first packaging block 111, that is, a plurality of first packaging blocks 111 in the form shown in fig. 4 are formed, and one or more pixel units 1111 are packaged in one packaging block 111.
In addition, as for the second region 120, as shown in fig. 1, a surface packaging form may be adopted, and the pixel units 1111 of the entire second region 120 are packaged as a whole.
The display panel manufactured by adopting the manufacturing process is characterized in that the plurality of pixel units are packaged in different regions on the first region of the flexible substrate body, the flexible stretchability of the flexible substrate body is utilized, the first region is adaptable to a stretched state, and when the first region is stretched, the distribution density of the pixel units is reduced, so that the transmittance of the part is increased, the first region can be correspondingly set as the induction module is arranged below the display panel, and the transmission requirement of the induction module during working is met.
In another aspect, an embodiment of the present invention further provides a display module, where the display module includes a display panel with any one of the above-described implementation structures.
As shown in fig. 12, the display module according to the embodiment of the present invention further includes:
and a stretching driving structure 200 connected to the substrate body 100, wherein the stretching driving structure 200 is configured to drive a stretching state change of the first region 110.
Alternatively, when the plurality of first package blocks 111 are arranged at intervals in the first direction, respectively, as shown in fig. 2, the stretching driving structure is configured to be able to drive the change of the stretching state of the first region 110 in the first direction.
When the plurality of first package blocks 111 are distributed in an array along a first direction and a second direction perpendicular to each other on the first region 110 as shown in fig. 4, the tensile driving structure 200 is configured to be able to drive a tensile state change of the first region 110 along the first direction and to drive a tensile state change of the first region 110 along the second direction.
In an embodiment of the present invention, the stretching driving structure 200 includes:
two fixing pieces 210 arranged at intervals, wherein the two fixing pieces 210 are respectively connected with the substrate body 100;
a telescopic member 220 positioned between the two fixed members 210, wherein an orthographic projection of the telescopic member 220 on a plane of the first region 110 is positioned in the first region 110, or an orthographic projection of the telescopic member 220 on a plane of the first region 110 is crossed on two opposite edges of the first region 110;
the driving member 230 is configured to change the distance between the two fixing members 210 by driving the length of the telescopic member 220 to change, so as to change the stretching state of the first region 110.
In the embodiment of the present invention, as shown in fig. 12, optionally, when two second regions 120 are respectively disposed on two sides of the first region 110, two fixing members 210 disposed at intervals are respectively fixedly connected to the substrate body 100 portion corresponding to one second region 120, and the two fixing members 210 are connected through a telescopic member 220, the telescopic member 220 is driven by a driving member 230, and the driving member 230 drives the telescopic member to change in extension and retraction, so that the distance between the two fixing members 210 is changed, and thus the extension and retraction state of the first region 110 is changed.
In the embodiment of the present invention, an orthographic projection of the extensible member 220 on the plane of the first region 110 is located in the first region 110, or an orthographic projection of the extensible member 220 on the plane of the first region 110 spans two opposite edges of the first region 110, optionally, when not stretched, a center point of the extensible member 220 in the length direction is located on a center line of the first region 110 perpendicular to the stretched direction, so that the length of the extensible member 220 is changed, and accordingly, the length change is only used for uniformly expanding or contracting the first region 110.
Optionally, the telescopic element 220 is formed in a strip shape, and cannot overlap with a position where the sensing module needs to be disposed below the first region 110 of the substrate body 100, that is, there is no overlapping portion between an orthographic projection of the sensing range of the sensing module on the first region 110 and an orthographic projection of the telescopic element 220 on the first region 110. Specifically, should avoid the setting position of extensible member 220 and the setting position of response module to produce the conflict, when there is the conflict, can carry out the trompil on the extensible member 220 and handle to avoid responding to the module.
Alternatively, in the embodiment of the present invention, the telescopic member 220 may be a mechanical member, for example, including two rod-shaped bodies, wherein a first rod-shaped body is inserted into a second rod-shaped body, and when the extension length of the first rod-shaped body is changed compared to the extension length of the second rod-shaped body, the total length of the first rod-shaped body and the second rod-shaped body is changed, so that the distance between the two fixing members 210 can be changed.
Alternatively, in an embodiment of the present invention, the expansion member 220 may include a balloon located between two fixing members, and the distance between the two fixing members is changed by controlling the amount of gas in the balloon, so that the first region 110 is stretched. Further, when the expansion element 220 includes an air bag, it may further include a sliding block slidably disposed between the two fixing elements 210, and the sliding block is pushed by the volume change of the air bag to move between the two fixing elements 210 to expand or contract outwards against the fixing elements 210, so as to drive the stretching state change of the first region 100. The extensible member of this structure utilizes the setting of sliding block, can reduce the volume that sets up of gasbag to be more convenient for the drive.
Optionally, the telescopic member may be an electric motor, a pneumatic pump, a hydraulic pump, or the like, and is specifically selected according to the structure of the telescopic member.
In addition, as shown in fig. 2 and with reference to fig. 12 and 13, when the plurality of first package blocks 111 are formed in a strip-shaped manner arranged at intervals along one direction on the substrate body 100, the stretching driving structure only needs to drive the first region 110 to change the stretching state along one direction, based on this, in this implementation structure, the number of the fixing members 210 may be two, and the fixing members 210 may be respectively located at two sides of the first region 110 and fixedly connected to the second regions 120 at two sides of the first region 110, and the length direction of the extensible member 220 is the direction from one fixing member 210 to another fixing member 210, and the distance between the two fixing members 210 is changed by using the length change of the extensible member 220, so as to drive the extension state change of the first region 110; or as shown in fig. 14, the number of the fixing members 210 may also be four, wherein the number of the telescopic members 220 is two, the length directions are respectively arranged along the direction in which the first region 110 is stretched, and the two fixing members 210 located at both sides of the first region 110 are respectively connected, so that when the two telescopic members 220 are synchronously driven to be stretched, the stretching state of the first region 110 is changed simultaneously.
As shown in fig. 4 and fig. 15, when the plurality of first package blocks 111 are formed in a block-shaped array on the substrate body 100 and the display panel needs to be arranged to be able to expand and contract in two perpendicular directions, the stretching driving structure needs to be able to drive the first region 110 to expand and contract in the first direction a and also needs to be able to drive the first region 110 to expand and contract in the first direction b. Based on this, in this embodiment, the number of the fixing members 210 may be four, wherein each two fixing members 210 are connected by the telescopic members 220, such that the length directions of two telescopic members 220 of the four telescopic members 220 are along the first direction a, and the length directions of the other two telescopic members 220 are along the second direction b. Thus, when the two expansion members 220 in the first direction a are synchronously driven to expand and contract, the expansion and contraction state of the first region 110 in the first direction a changes; when the two expansion members 220 in the second direction b are synchronously driven to expand and contract, the expansion and contraction state of the first region 110 in the second direction b changes.
Taking the driving member comprising an air pump and the expansion member comprising an air bag and a sliding block as an example, as shown in fig. 16, at least one air bag 221 is respectively disposed around each edge of the first region 110 on the surface of the substrate body 100 facing away from the pixel unit, and each air bag 221 is respectively connected to one air pump 223. Further, a slider 222 is provided for each edge to abut against the air bag 221. Two of the four sliding blocks 222 can slide along the first direction a relative to the substrate body 100, and the other two sliding blocks 222 can slide along the second direction b relative to the substrate body 100.
Optionally, the air pump 223 connected to each air bag 221 is located at one corner of the first area 110 and at the intersection of the sliding tracks of the two sliding blocks 222 capable of sliding in different directions, and the air pump 223 can be connected to the substrate body 100, and when the volume of the gas in the air bag 221 changes and the sliding blocks 222 slide, the air pump 223 can be abutted against the air pump 223, so that the air pump 223 drives the substrate body 100 to extend and retract along the sliding direction of the sliding blocks 222; of course, the air pump 223 may be located on the surface of the substrate body 100 away from the pixel unit at a position away from the sliding track of the slider 222, as long as it can be connected to the air bag 221. It should be noted that when the air pump 223 is located at a position deviated from the sliding track of the sliding block 222, alternatively, at the periphery of the first region 110, a fixing member should be respectively provided at the intersection position of the sliding tracks of the two sliding blocks 222 sliding in different directions, for abutting against the air bag 221 and the sliding block 222 provided along the sliding tracks.
As shown in fig. 16, when the air pump 223 injects air into the two air bags 221 arranged along the first direction a synchronously, the air bags 221 can increase in volume, and the corresponding sliding blocks 222 are driven to move along the sliding tracks in a direction away from the air bags 221, so that the size of the first area 110 in the first direction a increases; similarly, when the air pump 223 pumps air out of the two air bags 221 arranged along the first direction a, the volumes of the two air bags 221 become smaller, and the corresponding sliding blocks 222 are driven to move along the sliding tracks in a direction approaching the air bags 221, so that the size of the first region 110 in the first direction a becomes smaller.
Similarly, when the air pump 223 is used to simultaneously inject or extract air into or from the two air bags 221 arranged along the second direction b, the size expansion and contraction change of the first region 110 along the second direction b can be controlled; when the air is simultaneously injected into or withdrawn from the four air cells 221 by the air pump 223, the dimensional expansion and contraction change of the first region 110 in the first direction a and the second direction b can be controlled simultaneously. The specific principle and process are the same as the above-mentioned dimension change along the first direction a, and are not described in detail herein.
It should be understood that the specific implementation structure of the stretch driver structure 200 shown in fig. 15 and 16 is only an example, and not limited thereto, for example, for the stretch driver structure 200 shown in fig. 16, the number of air bags and connected air pumps may also be increased to increase the stretching speed of the first region.
In another aspect, the embodiment of the present invention further provides a display device, where the display device includes the display module described above.
The specific structure of the display module can refer to the above detailed description, and is not described herein again.
According to the display device provided by the embodiment of the invention, the pixel units on the first area are packaged in different areas, the stretching driving structure capable of driving the stretching state of the first area to change is arranged on the substrate body, and the flexibility of the substrate body is utilized to change the stretching state of the first area through the stretching driving structure, so that the distribution density of the pixel units on the first area can be adjusted, and the effect of adjusting the transmittance of the first area can be achieved.
Optionally, the display device may be provided with an adjusting switch, connected to the stretching driving structure, for controlling the stretching driving structure through the adjusting switch to change the distribution density of the pixel units in the first area.
Optionally, when the display module includes a stretching driving structure connected to the substrate body, and the stretching driving structure is configured to drive a stretching state of the first region to change, the display device further includes:
a controller connected with the stretching driving structure and configured to output a control signal to the stretching driving structure, so that the stretching driving structure drives the stretching state of the first region to change in response to the control signal.
Alternatively, the controller may output a control signal to the stretching driving structure according to a control instruction input by a user by receiving the control instruction.
Optionally, the display device further comprises:
the sensing module is arranged on one side of the substrate body, which is far away from the pixel unit, and sensing media required by the sensing module are transmitted to the sensing module through the first area;
the controller is configured to monitor a first signal for controlling the induction module to start, respond to the first signal, output a first control signal to the stretching driving structure, and control the stretching driving structure to enable the first area to be in a first stretching state; monitoring a second signal for controlling the induction module to be closed, responding to the second signal, outputting a second control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a second stretching state;
in the first stretched state, the pixel cells on the first area have a first distribution density; in the second stretched state, the pixel cells on the first area have a second distribution density; the second distribution density is greater than the first distribution density.
By adopting the arrangement structure, the pixel units on the first area can adapt to the stretched state by utilizing the flexible stretchability of the flexible display panel, and when the first area is stretched, the distribution density of the pixel units is reduced, so that the transmittance is increased, and the transmittance requirement when the induction module works is met; when the first area is not stretched, the distribution density of the pixel units of the first area can meet the normal display effect of the display screen.
Optionally, when at least one second region of the substrate body is provided with a second package block, and a plurality of pixel units are packaged in the second package block, the distribution density of the pixel units in the second region is equal to the second distribution density.
Specifically, when the first region is not stretched, the distribution density of the pixel units in the first region is equal to that in the other regions (second regions), so as to ensure the normal display effect of the display screen, and the display effect of each region is the same.
Optionally, the display device further comprises:
a housing having an adjustable receiving space, wherein the display panel is disposed in the receiving space; the shell is configured to be capable of adjusting the size of the accommodating space according to the change of the stretching state of the first area.
Specifically, as shown in fig. 17a and 17b, the housing 300 with an adjustable accommodating space may specifically include at least two parts, wherein a first part of the housing is capable of sliding relative to a second part of the housing, when the first part of the housing is pulled out from the second part of the housing, the accommodating space of the housing 300 is increased, so that the display panel disposed inside can be stretched, the distribution density of the pixel units in the first area on the display panel is decreased, so as to meet the transmittance requirement when the sensing module operates, and in this case, the sensing module can operate; when the first housing part is contracted into the second housing part, the accommodating space of the housing 300 is reduced, and the display panel can be controlled to return to a normal state, so that the pixel units in each area on the display panel have the same distribution density, and the requirement of a display picture with high image quality and high definition is met.
In the embodiment of the present invention, optionally, the display device may further include a detection element, configured to detect an upward sliding operation of the first partial housing relative to the second partial housing, and when the sliding operation is detected, output a control signal to the controller, control the stretching driving structure to drive the display panel to be stretched, and simultaneously control the sensing module to start working at the same time.
An embodiment of the present invention further provides a display control method of the display device, where the display device includes a display panel, and the display panel includes: the flexible substrate comprises a flexible substrate body, wherein at least one first area of the substrate body is provided with a plurality of mutually separated first packaging blocks, and each first packaging block is internally packaged with at least one pixel unit;
the sensing module is arranged on one side, away from the pixel unit, of the substrate body, and sensing light required by the sensing module is incident to the sensing module through the first area;
a stretching driving structure connected with the substrate body, wherein the stretching driving structure is configured to drive the stretching state of the first region to change; through the change of the stretching state of the first area, the spacing distance between the first packaging blocks is changed, and the distribution density of the pixel units on the first area is changed;
wherein the method comprises the following steps:
monitoring the working state of the induction module;
and outputting a control signal to the stretching driving structure according to the working state of the induction module, so that the stretching driving structure responds to the control signal to drive the stretching state of the first area to change.
Optionally, the outputting a control signal to the stretching driving structure according to the working state of the sensing module, so that the stretching driving structure responds to the control signal to drive the stretching state change of the first region, includes:
when a first signal for controlling the induction module to start is obtained, responding to the first signal, outputting a first control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a first stretching state;
when a second signal for controlling the induction module to be closed is obtained, responding to the second signal, outputting a second control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a second stretching state;
wherein in the first stretched state, the pixel cells on the first area have a first distribution density; in the second stretched state, the pixel cells on the first area have a second distribution density; the second distribution density is greater than the first distribution density.
The embodiment of the invention also provides a preparation method of the display panel, wherein the preparation method comprises the following steps:
providing a flexible substrate body;
preparing a driving layer on the substrate body;
etching the driving layer, and forming a plurality of separated block-shaped structures in a first area of the driving layer;
preparing a light emitting layer on the driving layer to form a plurality of pixel units;
and packaging the pixel units, wherein the driving layers of the block structures in the first area are respectively packaged into a first packaging block, and at least one pixel unit is packaged in the first packaging block.
Optionally, in the step of encapsulating the plurality of pixel units, the plurality of pixel units in a second region other than the first region of the driving layer may be encapsulated as one second encapsulation block, or the plurality of pixel units in the second region may be encapsulated as a plurality of second encapsulation blocks according to region division.
Optionally, after providing the flexible substrate body, the method further comprises:
openings penetrating through opposite surfaces of the substrate body are prepared on the substrate body, wherein the openings may be formed as slits in a bar shape or a cross shape.
For the position and the structural form of the opening disposed on the substrate body, reference may be made to the above detailed description, which is not repeated herein.
In the embodiment of the invention, the driving layer can be a thin film transistor array, and the light emitting layer is an OLED light emitting layer.
According to the above detailed description, the specific structure of the first package block disposed in the first region can be understood, and will not be described herein again.
By adopting the display device provided by the embodiment of the invention, module components such as the camera, the receiver and the sensor can be arranged below the display screen, so that the requirement of a narrow screen is met, and the transmittance of the display panel meets the working requirements of the module components on the premise of ensuring the high display quality of the display screen.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (22)
1. A display panel, comprising:
the flexible substrate body comprises at least one first area, the first area is a corresponding arrangement area when the induction module is arranged below the substrate body, a plurality of pixel units are packaged in different areas on the first area of the substrate body to form a plurality of mutually separated first packaging blocks, at least one pixel unit is packaged in each first packaging block, and a spacing area is formed between every two adjacent first packaging blocks;
the first region can be stretched by the flexible stretchability of the flexible substrate body, when the stretching state of the first region is changed, the distance of the spacer region in the stretching direction is changed, and the pixel unit distribution density on the first region is changed;
when the first region is stretched, the distribution density of the pixel units in the first region is reduced, and the light transmittance of the first region is increased.
2. The display panel according to claim 1, wherein the first encapsulation blocks are respectively arranged at intervals along a first direction, each of the first encapsulation blocks has a plurality of pixel units encapsulated therein, and the pixel units are arranged along a second direction, wherein the first direction is perpendicular to the second direction, and the first direction is parallel to a stretchable direction of the first region.
3. The display panel according to claim 1, wherein the first region is stretchable in both a first direction and a second direction perpendicular to each other, wherein the first region has M rows of the first package blocks arranged in the first direction, and N columns of the first package blocks arranged in the second direction; wherein M and N are both integers greater than 1.
4. The display panel according to claim 3, wherein each of the first package blocks is formed in a quadrangle.
5. The display panel according to claim 1, wherein an opening for penetrating through opposite surfaces of the substrate body in a stretched state is provided between the first package blocks adjacent in the stretching direction on the first region.
6. The display panel according to claim 5, wherein the opening is formed in a bar shape or a cross shape.
7. The display panel of claim 1, wherein a second packaging block is disposed on at least a second region of the substrate body, and a plurality of pixel units are packaged in the second packaging block.
8. The display panel according to claim 7, wherein the substrate body includes two of the second regions, the two of the second regions are disposed along a stretched direction of the first region, and the first region is located between the two of the second regions.
9. A display module comprising the display panel according to any one of claims 1 to 8.
10. The display module assembly of claim 9, wherein the display module assembly further comprises:
a stretching driving structure connected with the substrate body, the stretching driving structure being configured to drive a stretching state change of the first region.
11. The display module according to claim 10, wherein the stretching driving structure is configured to drive the first region to change the stretching state along the first direction when the first encapsulation blocks are arranged along the first direction at intervals.
12. The display module according to claim 10, wherein when the first region has M rows of the first encapsulation blocks arranged in a first direction and N columns of the first encapsulation blocks arranged in a second direction, the stretching driving structure is configured to drive a change in a stretching state of the first region in the first direction and to drive a change in a stretching state of the first region in the second direction.
13. The display module of claim 10, wherein the stretching driving structure comprises:
the two fixing pieces are arranged at intervals and are respectively connected with the substrate body;
the orthographic projection of the telescopic piece on the plane of the first area is positioned in the first area, or the orthographic projection of the telescopic piece on the plane of the first area crosses two opposite edges of the first area;
the driving piece is configured to drive the length of the telescopic piece to change, so that the distance between the two fixing pieces is changed, and the stretching state of the first area is changed.
14. The display module of claim 13, wherein the expansion member comprises:
the air bag is positioned between the two fixing pieces;
the driving piece comprises an air pump and is used for controlling the change of the amount of air in the air bag, and the distance between the two fixing pieces is changed.
15. The display module of claim 14, wherein the expansion member further comprises: the sliding block is arranged between the two fixing pieces in a sliding manner;
the gas quantity in the gas bag changes, the gas bag is abutted to the sliding block, and the sliding block is pushed to move between the two fixing pieces.
16. A display device, characterized in that the display device comprises a display module according to any one of claims 9 to 15.
17. The display device according to claim 16, wherein when the display module comprises a stretching driving structure connected to the substrate body, the stretching driving structure being configured to drive a change in stretching state of the first region, the display device further comprises:
a controller connected with the stretching driving structure and configured to output a control signal to the stretching driving structure, so that the stretching driving structure drives the stretching state of the first region to change in response to the control signal.
18. The display device according to claim 17, further comprising:
the sensing module is arranged on one side of the substrate body, which is far away from the pixel unit, and sensing media required by the sensing module are transmitted to the sensing module through the first area;
the controller is configured to monitor a first signal for controlling the induction module to start, respond to the first signal, output a first control signal to the stretching driving structure, and control the stretching driving structure to enable the first area to be in a first stretching state; monitoring a second signal for controlling the induction module to be closed, responding to the second signal, outputting a second control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a second stretching state;
in the first stretched state, the pixel cells on the first area have a first distribution density; in the second stretched state, the pixel cells on the first area have a second distribution density; the second distribution density is greater than the first distribution density.
19. The display device according to claim 18, wherein when a second packaging block is disposed on at least a second region of the substrate body, and a plurality of pixel units are packaged in the second packaging block, the distribution density of the pixel units in the second region is equal to the second distribution density.
20. The display device according to claim 16, further comprising:
a housing having an adjustable receiving space, wherein the display panel is disposed in the receiving space; the shell is configured to be capable of adjusting the size of the accommodating space according to the change of the stretching state of the first area.
21. A display control method of a display device, wherein the display device includes a display panel including: the flexible substrate comprises a flexible substrate body, wherein at least one first area of the substrate body is provided with a plurality of mutually separated first packaging blocks, and each first packaging block is internally packaged with at least one pixel unit;
the sensing module is arranged on one side, away from the pixel unit, of the substrate body, and sensing light required by the sensing module is incident to the sensing module through the first area;
a stretching driving structure connected with the substrate body, wherein the stretching driving structure is configured to drive the stretching state of the first region to change; through the change of the stretching state of the first area, the spacing distance between the first packaging blocks is changed, and the distribution density of the pixel units on the first area is changed;
wherein the method comprises the following steps:
monitoring the working state of the induction module;
and outputting a control signal to the stretching driving structure according to the working state of the induction module, so that the stretching driving structure responds to the control signal to drive the stretching state of the first area to change.
22. The method according to claim 21, wherein outputting a control signal to the stretching driving structure according to the operating state of the sensing module, so that the stretching driving structure drives the stretching state of the first region to change in response to the control signal comprises:
when a first signal for controlling the induction module to start is obtained, responding to the first signal, outputting a first control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a first stretching state;
when a second signal for controlling the induction module to be closed is obtained, responding to the second signal, outputting a second control signal to the stretching driving structure, and controlling the stretching driving structure to enable the first area to be in a second stretching state;
wherein in the first stretched state, the pixel cells on the first area have a first distribution density; in the second stretched state, the pixel cells on the first area have a second distribution density; the second distribution density is greater than the first distribution density.
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