CN110047388B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110047388B CN110047388B CN201910472817.1A CN201910472817A CN110047388B CN 110047388 B CN110047388 B CN 110047388B CN 201910472817 A CN201910472817 A CN 201910472817A CN 110047388 B CN110047388 B CN 110047388B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- 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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- 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
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Abstract
The invention discloses a display panel and a display device. The display panel is provided with a first display area and a second display area which are distributed adjacently, and comprises a first substrate, a deformable layer and a device layer. The first substrate comprises an inner surface and an outer surface which are opposite; the deformable layer is arranged on the inner surface of the first substrate and located in the first display area, the first sizes of the deformable layer under the action of electric fields or magnetic fields with different intensities are different, the device layer is arranged on the inner surface of the first substrate and covers the second display area and at least part of the deformable layer, a plurality of pixels are formed inside the device layer, and the display panel is provided with through holes which at least penetrate through the deformable layer and the device layer in the direction perpendicular to the inner surface. The display panel and the display device provided by the invention realize higher screen occupation ratio, more reasonably realize the integration of the sensing component and the display panel in the display device, and improve the use convenience.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a display device.
Background
The high screen ratio is the latest development direction of intelligent terminal equipment. In order to improve the screen occupation ratio, various sensors on the front side of the terminal equipment need to be distributed more reasonably. At present, devices such as fingerprint identification and earphones can be well integrated below a display panel, but the position design of a front camera of terminal equipment cannot be well solved.
At present, in order to realize higher screen occupation ratio, the layout mode of the front-mounted camera is that the camera is driven by a mechanical telescopic mechanism to be submerged in a terminal equipment shell or extend out of the terminal equipment shell, and an externally-hung modular camera is adopted. However, the above conventional methods increase redundant mechanical actions and are less convenient to use.
Disclosure of Invention
The invention provides a display panel and a display device, which realize high screen occupation ratio, more reasonably realize the integration of a light sensing component and the display panel in the display device and improve the use convenience.
In a first aspect, an embodiment of the present invention provides a display panel having a first display area and a second display area adjacent to each other, the display panel including: a first substrate comprising opposing inner and outer surfaces; the deformable layer is arranged on the inner surface of the first substrate and positioned in the first display area, the first sizes of the deformable layer under the action of electric fields or magnetic fields with different intensities are different, and the first size is a size parallel to the direction of the surface of the first substrate; the device layer is arranged on the inner surface of the first substrate, covers the second display area and at least part of the deformable layer, and is internally provided with a plurality of pixels; the display panel is provided with a through hole which at least penetrates through the deformable layer and the device layer along the direction vertical to the inner surface.
According to an aspect of an embodiment of the present invention, a display panel has a first display state and a second display state; in a first display state, the first size of the deformable layer is an original size, and the size of the through hole is smaller than or equal to the distance between pixels in the device layer; in the second display state, the first size of the deformable layer is a deformation size, and the size of the through hole is larger than that of the through hole in the first display state.
According to one aspect of an embodiment of the invention, the deformable layer is a piezoelectric film layer; optionally, in the first display state, the deformable layer is grounded or has a voltage of zero, and in the second display state, the deformable layer is powered on.
According to one aspect of an embodiment of the present invention, the deformable layer has an outer contour and an inner contour, the inner contour being a boundary of the through hole; wherein the orthographic projection of the outer contour on the inner surface in the second display state is the same size as the orthographic projection of the outer contour on the inner surface in the first display state.
According to an aspect of an embodiment of the invention, the distance between the outer contour and the inner contour in the second display state is smaller than the distance between the outer contour and the inner contour in the first display state.
According to one aspect of an embodiment of the present invention, the deformable layer has an outer contour and an inner contour, the inner contour being a boundary of the through hole; the deformable layer comprises a plurality of deformable units, and in the first display state, the plurality of deformable units are mutually contacted to ensure that the outer contour and the inner contour of the deformable layer are continuous, and each deformable unit can independently deform; optionally, in the second display state, the plurality of deformable units are separated from each other such that the outer contour and the inner contour of the deformable layer are discontinuous.
According to an aspect of the embodiments of the invention, in the first display region, the number of the through holes penetrating through the deformable layer and the device layer is plural, and the plural through holes are arranged at intervals in a direction parallel to the surface of the first substrate.
According to one aspect of the embodiments of the present invention, the device layer has a first device layer unit covering the deformable layer and a second device layer unit located in the second display area, the pixels inside the first device layer unit and inside the second device layer unit having a display state and a non-display state, respectively; in a first display state, pixels in the first device layer unit and pixels in the second device layer unit are in display states respectively; in the second display state, the pixels in the first device layer unit are in a non-display state, and the pixels in the second device layer unit are in a display state.
According to one aspect of an embodiment of the present invention, the device layer includes a driving film layer on the deformable layer and a light emitting film layer on the driving film layer; the display panel further includes: and the second substrate is positioned on the device layer.
In a second aspect, an embodiment of the present invention provides a display device, including a display panel according to any one of the foregoing display panels; and the photosensitive assembly is arranged on one side of the outer surface of the first substrate and at least corresponds to the first display area.
According to the display panel provided by the embodiment of the invention, the deformable layer can deform under the action of the electric fields or the magnetic fields with different strengths, so that the first sizes of the deformable layer under the action of the electric fields or the magnetic fields with different strengths are different. At the internal surface of first base plate, but correspond the deformation layer that deformation can take place for first display area setting, and cover second display area and at least partial deformation layer setting with the device layer, so that the device layer can produce synchronous deformation along with the deformation on deformation layer, through being equipped with the through-hole that runs through at least deformation layer and device layer at display panel, so that outside light can get into display panel through the through-hole, when deformation takes place for the deformation layer, can drive the device layer and take place synchronous deformation, and then change the size of through-hole, when the size of through-hole changes, can change the light transmission amount that passes through first base plate via the through-hole.
When this display panel uses display device, display device includes the photosensitive assembly, and photosensitive assembly during operation can receive light and generate the image, drives the change of through-hole size through the layer that can deform to the change passes through the light transmission amount that first base plate reachd the photosensitive assembly via the through-hole, so that photosensitive assembly receives light and generates the image. When the photosensitive assembly does not work, the first display area and the second display area can be used for displaying static or dynamic pictures. Through setting up the deformable layer for the photosensitive assembly need not set up and can receive light and generate the image on display panel, avoids the photosensitive assembly to occupy display panel's area, is convenient for improve the screen and accounts for the ratio.
Drawings
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
Fig. 1 illustrates a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the AA-oriented display panel of FIG. 1 in a first display state;
FIG. 3 is a schematic cross-sectional view of the AA-oriented display panel of FIG. 1 in a second display state;
FIG. 4 illustrates a top view of a deformable layer of an embodiment of the invention in a first display state;
FIG. 5 illustrates a top view of a deformable layer of an embodiment of the present invention in a second display state;
fig. 6 is a schematic structural view illustrating a display panel according to another embodiment of the present invention;
FIG. 7 shows a schematic cross-sectional view of the BB-oriented display panel of FIG. 6 in a first display state;
FIG. 8 is a schematic cross-sectional view of the BB-oriented display panel of FIG. 6 in a second display state;
FIG. 9 is a top view of a deformable layer in a first display state according to another embodiment of the invention;
FIG. 10 shows a top view of a deformable layer of another embodiment of the invention in a second display state;
fig. 11 illustrates a schematic structural view of a display device according to an embodiment of the present invention;
FIG. 12 shows a schematic cross-sectional view of the CC display apparatus of FIG. 11 in a first display state;
fig. 13 shows a schematic cross-sectional view of the display device of fig. 11 in a second display state in the orientation CC.
In the figure:
100-a display device;
1-a display panel; 10-a deformable layer; 11-outer contour; 12-inner contour; 13-a deformable element; 20-a device layer; 21-a luminescent film layer; 22-a driving film layer; 23-a first device layer unit; 24-a second device layer unit; 30-a first substrate; 31-an inner surface; 32-an outer surface; 40-a second substrate; 50-a first display area; 60-a second display area; 70. 71-a through hole;
2-a photosensitive component;
m-a first display state;
n-a second display state;
l-ray.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 2 and 3 are schematic cross-sectional diagrams of the display panel according to the embodiment of the present invention in a first display state and a second display state, respectively, where line AA in fig. 1 shows a cut-out position of the cross-sectional diagrams in fig. 2 and 3. Fig. 2 and fig. 3 also show internal structure diagrams of the display panel, and in order to clearly show the connection relationship of the layer structures, the schematic diagrams hide and show a part of the insulating layer.
The display panel 1 of the present embodiment has a first display region 50 and a second display region 60 adjacent to each other, and the display panel 1 includes a first substrate 30, a deformable layer 10, and a device layer 20.
The first substrate 30 includes opposing inner 31 and outer 32 surfaces. The deformable layer 10 is disposed on the inner surface 31 of the first substrate 30 and located in the first display region 50, and first dimensions of the deformable layer 10 under the action of electric fields or magnetic fields with different intensities are different, and the first dimension is a dimension parallel to the surface of the first substrate 20. The device layer 20 is disposed on the inner surface 31 of the first substrate 30 and covers the second display region 60 and at least a portion of the deformable layer 10, and a plurality of pixels are formed inside the device layer 20. The display panel 1 is provided with a through hole 70 penetrating at least the deformable layer 10 and the device layer 20 in a direction perpendicular to the inner surface 31.
According to the display panel 1 of the embodiment of the invention, the deformable layer 10 can be deformed under the action of the electric fields or the magnetic fields with different strengths, so that the first sizes of the deformable layer 10 under the action of the electric fields or the magnetic fields with different strengths are different. At the internal surface 31 of first base plate 30, but correspond first display area 50 setting and can take place the deformation but the deformation layer 10, and cover second display area 60 and at least partial deformation layer 10 setting with device layer 20, so that device layer 20 can produce synchronous deformation along with the deformation of deformation layer 10, through being equipped with the through-hole 70 that runs through at least deformable layer 10 and device layer 20 at display panel 1, so that outside light L can get into display panel 1 through-hole 70, when deformation layer 10 takes place deformation, can drive device layer 20 and take place synchronous deformation, and then change the size of through-hole 70, when the size of through-hole 70 changes, can change the light transmission amount who sees through first base plate 30 through-hole 70.
When the display panel 1 is applied to the display device 100, the display device 100 includes the photosensitive assembly 2, the photosensitive assembly 2 can receive the light L and generate an image, and the deformable layer 10 drives the size of the through hole 70 to change the light transmission amount which passes through the through hole 70 and reaches the photosensitive assembly 2 through the first substrate 30, so that the photosensitive assembly 2 receives the light L and generates the image. Through setting up deformable layer 10 for photosensitive component 2 need not set up can receive light L and generate the image on display panel 1, avoids photosensitive component 2 to occupy display panel 1's area, is convenient for improve the product screen and accounts for the ratio.
The first substrate 30 is a substrate, and the first substrate 30 may be glass, a polymer substrate such as a Polyimide (PI) film, or a substrate including a polymer material such as PI. The first substrate 30 may be flexible so that the display panel 1 may be a flexible display panel. Alternatively, the Display panel 1 may be an Organic Light-Emitting Diode (OLED) Display panel or a Liquid Crystal Display (LCD) panel.
In some embodiments, the number of the through holes 70 penetrating the deformable layer 10 and the device layer 20 is plural in the first display region 50, and the plural through holes 70 are spaced in a direction parallel to the surface of the first substrate 30. Through setting up a plurality of through-holes 70, can make outside light L can see through display panel 1 through every through-hole 70, improve the light and see through the amount of transmission of through-hole, when this display panel 1 uses display device 100, can set up a plurality of photosensitive assemblies 2 according to user's demand, improve user experience.
In some embodiments, a second substrate 40 is further disposed above the device layer 20, the first substrate 30 and the second substrate 40 are disposed opposite to each other, an encapsulation layer is disposed between the first substrate 30 and the second substrate 40, the encapsulation layer is disposed around the device layer 20, and the device layer 20 is encapsulated between the first substrate 30 and the second substrate 40 through the encapsulation layer to obtain the display panel 1. Wherein, the second substrate can be a glass cover plate or a flexible cover plate.
In some embodiments, buffer layers may be further disposed between the first substrate 30 and the deformable layer 10, the deformable layer 10 and the device layer 20, and at this time, the through hole 70 disposed on the display panel 1 penetrates through the buffer layers. The buffer layer may be an oxide layer or a nitride layer, for example made of silicon nitride or silicon carbide.
In some embodiments, the first display area 50 of the display panel 1 is capable of allowing the light L to pass through, and when the display panel 1 is applied to the display device 100, the first display area 50 is disposed corresponding to the photosensitive assembly 2 on the display device 100. Specifically, in an alternative embodiment, the first substrate 30 has a first transparent region, and the second substrate 40 has a second transparent region, wherein the first transparent region and the second transparent region are disposed opposite to each other, and at least a portion of the first transparent region and the second transparent region are located in the first display region 50 of the display panel 1. Through setting up the second printing opacity district at second base plate 40 to make outside light L can see through inside the second printing opacity district entering display panel 1 of second base plate 40, through setting up first printing opacity district on first base plate 30, so that the inside light L of entering display panel 1 can see through first base plate 30, the response of the photosensitive assembly 2 of being convenient for and the light L of receiving through first base plate 30.
In some embodiments, the display panel 1 has a first display state M in which pixels in the device layer 20 of the first display region 50 are normally displayed and a second display state N in which pixels in the device layer 20 of the first display region 50 are in a non-display state. The first display region 50 can be stably switched between the first display state M and the second display state N.
Referring to fig. 2 and 3, in the first display state M, the deformable layer 10 is not deformed, the first size of the deformable layer 10 is the original size, and the size of the through hole 70 is smaller than or equal to the size of the space between the pixels in the device layer 20, so that the pixels in the first display state M can normally emit light and are in the display state. In the second display state N, the deformable layer 10 is deformed, the first size of the deformable layer 10 is a deformed size, and the size of the through hole 70 is larger than the size of the through hole 70 in the first display state M, so that the light throughput through the through hole 70 in the second display state N is larger than the light throughput through the through hole 70 in the first display state M, thereby increasing the light throughput through the first substrate 30. Meanwhile, in order to ensure the light throughput in the second display state N, the plurality of pixels in the first display region are in the non-display state.
In this embodiment, the projection of the deformable layer 10 on the first substrate 30 coincides with the projection of the first display region 50 on the first substrate 30, and the size parameter of the deformable layer 10 and the position of the first display region 50 are reasonably set, so that the light passing through the through hole 71 of the deformable layer 10 and through the first display region 50 is the largest, and the utilization rate of the light L is improved. When the display panel 1 is applied to the display device 100, the light L passing through the through hole 71 can be more effectively received by the photosensitive element 2 through the first display region 50. The deformable layer 10 is provided with a through hole 71 in a thickness direction thereof, and the deformable layer 10 can be deformed by providing the through hole 71 on the deformable layer 10 so that the external light L passes through. The deformable layer 10 deforms such that the through-holes 71 deform and thereby change the size of the through-holes 71, whereby the change in size of the through-holes 71 changes the light throughput through the through-holes 71.
Specifically, when the first size of the deformable layer 10 is converted from the original size to the deformed size, the deformable layer 10 is deformed, the device layer 20 covering at least a part of the deformable layer 10 is deformed synchronously with the deformable layer 10, and the pixels in the device layer 20 move synchronously along the deformation direction.
Optionally, the deformable layer 10 can restore the original shape while being deformed, so as to facilitate the stability of the display panel 1. The deformable layer 10 has a continuous layer structure, and is formed on the first substrate 30 by patterning, and a projection shape of the deformable layer 10 on the first substrate 30 is a circle, a square, or an irregular shape, which is not limited in the present invention.
In some embodiments, the deformable layer 10 is a piezoelectric film layer. The piezoelectric film layer may be disconnected or coupled to an electric field or a magnetic field, and the deformable layer 10 is hereinafter described as being disconnected or coupled to an electric field.
Optionally, in the first display state M, the deformable layer 10 is grounded or the voltage is zero, and in the second display state N, the deformable layer 10 is powered on. When no electric field is applied to the deformable layer 10 or the deformable layer 10 is disconnected from the electric field, the deformable layer 10 is grounded or the voltage is zero; when the deformable layer 10 is energized, the deformable layer 10 may couple with an electric field. The deformable layer 10 enables the switching of the first display state M and the second display state N of the first display region 50 by coupling or decoupling with an electric field. Through setting up deformable layer 10 into the piezoelectric film layer that can couple or break off with the electric field for deformable layer 10 has stable deformability, and can improve the degree of consistency of many times deflection, and deformable layer 10 can resume original size state when breaking off with the electric field simultaneously, has improved display panel 1's demonstration stability can.
In the present embodiment, the deformable layer 10 may be made of a piezoelectric material, including but not limited to Polyvinylidene Fluoride (PVDF), lead zirconate titanate, lead magnesium niobate zirconate titanate, and the like.
The deformable layer 10 is deformed by using the inverse piezoelectric effect of the piezoelectric material. Specifically, in some embodiments, in the initial state, the centers of the positive ions and the negative ions in the deformable layer 10 coincide, and when the deformable layer 10 is deformed by an external force, the two ends of the positive ions and the two ends of the negative ions in the deformable layer 10 move, and at this time, the centers of the positive ions and the negative ions do not coincide any more, so that the deformable layer 10 is polarized, and an electric field is generated at the two ends of the deformable layer 10. Conversely, when an external electric field is applied in the polarization direction of the deformable layer 10, positive ions and negative ions inside the deformable layer 10 are displaced, causing deformation of the deformable layer 10. When the external electric field is removed, the deformable layer 10 is restored to the original dimensional state.
Fig. 4 and 5 show top views of a deformable layer of an embodiment of the invention in a first display state and a second display state.
Referring to fig. 2 to 5, in some embodiments, the deformable layer 10 has an outer contour 11 and an inner contour 12, the inner contour 12 is a boundary of the through hole, wherein an orthographic projection of the outer contour 11 on the inner surface 31 in the second display state N is the same as an orthographic projection of the outer contour on the inner surface in the first display state. Wherein the outer contour 11 of the deformable layer 10 corresponds to the contour of the deformable layer 10 in a surface parallel to the inner surface 31 and the inner contour 12 corresponds to the boundary of the through hole 71 in a surface parallel to the inner surface 31.
In the present embodiment, the outer contour 11 of the deformable layer 10 is disposed in contact with the device layer 20 disposed in the second display region 60, and in a direction parallel to the inner surface 31, the device layer 20 limits the deformation of the outer contour 11, so that the size of the orthographic projection of the outer contour 11 on the inner surface 31 in the second display state N is the same as that in the first display state M, thereby avoiding the deformation of the outer contour 11 of the deformable layer 10 near the second display region 60, and improving the stability of the display of the second display region 60.
In the second display state N, the distance between the inner contour 12 and the outer contour 11 is smaller than the distance between the inner contour 12 and the outer contour 11 in the first display state M. By applying an external electric field to the deformable layer 10, the charges in the deformable layer 10 near the through hole 71 move towards the outer contour of the deformable layer 10, such that the distance between the inner contour 12 and the outer contour 11 increases, such that the size of the through hole 71 provided in the deformable layer 10 increases, thereby increasing the light throughput through the through hole 71.
Further, the device layer 20 has a first device layer unit 23 covering the deformable layer 10 and a second device layer unit 24 located in the second display area 60, and pixels inside the first device layer unit 23 and inside the second device layer unit 24 have a display state and a non-display state, respectively; in the first display state M, the pixels inside the first device layer unit 23 and inside the second device layer unit 24 are in the display state, respectively; in the second display state N, the pixels inside the first device layer unit 23 are in a non-display state, and the pixels inside the second device layer unit 24 are in a display state.
In some embodiments, the first device layer unit 23 and the second device layer unit 24 are integrally formed on the first substrate 30, wherein the first device layer unit 23 is provided with a through hole 70 in the thickness direction thereof, and the projection of the through hole 70 on the first substrate 30 coincides with the projection of the through hole 71 of the deformable layer 10 on the first substrate 30, so that the transmission space of the light L in the through holes 70, 71 is consistent, the light L is prevented from being reflected in the through holes 70, 71, and the light throughput is reduced. The projection of the second device layer unit 24 on the first substrate 30 surrounds the projection of the deformable layer 10 on the first substrate 30, so that the second device layer unit 24 limits the deformation of the deformable layer 10, the deformation close to the second device layer unit 24 is avoided in the deformable layer 10, the stability of the display of the second device layer unit 24 is improved, and the pixels in the second device layer unit 24 are always in a stable display state in the first display state M and the second display state N.
The device layer 20 includes a driving film layer 22 and a light emitting film layer 21, the driving film layer 22 is located on the deformable layer 10, and the light emitting film layer 21 is located on the driving film layer 22.
The light emitting film layer 21 includes a plurality of pixels, and the driving film layer 22 includes a plurality of signal lines for driving the pixels and a plurality of functional elements. The plurality of signal lines of the driving film layer 22 include a scan line, a data line and a power line, and the plurality of functional elements at least include a switching transistor, a driving transistor and a storage capacitor. The plurality of signal lines are connected to a plurality of pixels in the light emitting film layer 21 through the plurality of functional elements, thereby driving the pixels to emit light.
The scan line, the data line, and the power line may be made of a conductive material, such as metal or Indium Tin Oxide (ITO). The different components may be made of different conductive materials, for example, in some embodiments, the scan line and the power line are made of molybdenum, and the data line is made of titanium, aluminum, or the like.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a display panel according to another embodiment of the invention. The display panel 1 of the present embodiment has a first display region 50 and a second display region 60 which are adjacently disposed, and the display panel 1 includes a first substrate 30, a deformable layer 10 and a device layer 20. The structures of the first substrate 30 and the device layer 20 are the same as those of the first substrate 30 and the device layer 20 in any of the above embodiments, and are not described again.
In the present embodiment, the deformable layer 10 has an outer profile 11 and an inner profile 12, the inner profile 12 being the boundary of the through hole 71; the deformable layer 10 comprises a plurality of deformable units 13, in the first display state M, the deformable units 13 are in contact with each other so that the outer contour 11 and the inner contour 12 of the deformable layer 10 are continuous, and each deformable unit 13 can be deformed independently; alternatively, in the second display state N, the plurality of deformable elements 13 are separated from each other such that the outer contour 11 and the inner contour 12 of the deformable layer 10 are discontinuous. The size of the through hole 71 in the second display state N is larger than the size of the through hole 71 in the first display state M.
In some alternative embodiments, the deformable elements 13 are piezoelectric films coupled or decoupled from the electric field, and a plurality of deformable elements 13 may be electrically connected to each other, so that the plurality of deformable elements 13 can be coupled or decoupled from the electric field at the same time, thereby improving uniform deformation of the deformable layer 10. The number of the deformable units 13 may be two, three, four, or five, as long as each deformable unit 13 can be independently deformed to change the size of the through hole 71, which is not limited by the present invention.
Fig. 7 and 8 show schematic cross-sectional views of the display panel in the first display state and the second display state, respectively, of the orientation BB in fig. 6, wherein the line BB in fig. 6 shows the position of the cross-sectional views in fig. 7 and 8. Fig. 9 and 10 show top views of a deformable layer in a first display state and a second display state, respectively, of another embodiment of the invention. Fig. 7 and 8 also show internal structure diagrams of the display panel, and the schematic diagrams hide and show a part of the insulating layer in order to clearly show the connection relationship of the layer structures.
As shown in fig. 7 and 9, in the present embodiment, the deformable layer 10 includes four deformable units 13, when the first display region 50 is in the first display state M, two adjacent deformable units 13 of the four deformable units 13 contact each other to make the outer contour 11 and the inner contour 12 of the deformable layer 10 continuous, at this time, the size of the through hole 71 is extremely small, the light passing through the first substrate 30 via the through hole 71 is extremely small and negligible, and the pixels of the first display region 50 normally display in the first display state M.
The structure of each deformable unit 13 is the same, so that each deformable unit 13 can generate the same deformation, the size of the through hole 71 can be uniformly increased, and the light L can conveniently pass through the through hole. The device layer 20 covers the four deformable units 13 respectively, and when each deformable unit 13 deforms, the device layer 20 covering the deformable units 13 also deforms synchronously.
As shown in fig. 8 and 10, in the second display state N, the deformable units 13 are separated from each other such that the outer contour 11 and the inner contour 12 of the deformable layer 10 are discontinuous, and the size of the through hole 71 in the second display state N is larger than the size of the through hole 71 in the first display state M. Specifically, the four deformable units 13 are simultaneously powered, an electric field is formed around each deformable unit 13, and each deformable unit 13 is deformed by utilizing the inverse piezoelectric effect, so that the size of the through hole 71 formed by enclosing the four deformable units 13 is increased, and the light throughput of the first substrate 30 through the through hole 71 is increased. Specifically, in this embodiment, four deformable units 13 are rectangular structures, and when supplying power to the deformable units 13, the width directions of the four deformable units 13 are all deformed, and the width of the deformable units 13 is reduced by compression, so that the size of the through hole 71 formed by enclosing the four deformable units 13 is increased.
Fig. 11 shows a schematic structural diagram of a display device according to an embodiment of the present invention, and fig. 12 and 13 show schematic cross-sectional diagrams of the display device in a first display state and a second display state, respectively, along the line CC in fig. 11, where the line CC in fig. 11 shows a cut-out position of the cross-sectional diagrams in fig. 12 and 13. In fig. 12, for clarity of showing the light L passing through the through-hole 70, a light refraction phenomenon occurring when the light L passes through the first and second substrates 30 and 40 is neglected.
In a second aspect of the present invention, as shown in fig. 11 to 13, a display panel 1 includes the display panel 1 of any of the above embodiments and at least one photosensitive element 2, and the photosensitive element 2 is disposed on one side of the outer surface 32 of the first substrate 30 and at least corresponds to the first display region 50.
In this embodiment, through set up deformable layer 10 and at least run through the through-hole 70 of deformable layer 10 and device layer 20 on display panel 1, take place deformation through deformable layer 10 and drive device layer 20 that covers deformable layer 10 and take place synchronous deformation, when deformable layer 10 and device layer 20 take place deformation, link up the change of the through-hole 70 size of deformable layer 10 and device layer 20, in order to change the light transmission amount that sees through display panel 1 through-hole 70 and reachs photosensitive assembly 2, and then make photosensitive assembly 2 can respond to light L and handle light L.
Optionally, when the number of the through holes 70 penetrating through the deformable layer 10 and the device layer 20 is multiple in the first display area M, the display device 100 may include a plurality of photosensitive assemblies 2 corresponding to the through holes 70, so that the external light L passing through the display panel 1 through the through holes 70 can reach the photosensitive assemblies 2, and the photosensitive assemblies 2 can process the light L conveniently.
In this embodiment, photosensitive assembly 2 is image acquisition device, and is concrete, and photosensitive assembly 2 is the subassembly of making a video recording, and when the light transmittance that through-hole 70 sees through first base plate 30 and arrives photosensitive assembly 2 reached photosensitive assembly 2 and when reaching photosensitive assembly 2's requirement, photosensitive assembly 2 can respond to and gather light L, and then generate the image. The photosensitive assembly 2 is disposed on one side of the outer surface 32 of the first substrate 30 and corresponding to the first display region 50, and a center line of the photosensitive assembly 2 coincides with a center line of the through hole 70 on the display panel 1. Because the deformable layer 10 is deformed uniformly from the through hole 71 to the edge of the deformable layer 10, the device layer 20 is deformed synchronously, and the central line of the photosensitive assembly 2 coincides with the central line of the through hole 70 on the display panel 1, so that the light L passing through the through hole 70 can reach the photosensitive assembly 2 uniformly. Through the above-mentioned setting for photosensitive assembly 2 can set up the one side at the surface 32 of first base plate 30, and photosensitive assembly 2 need not set up and can receive light L and generate the image on display panel 1, avoids occuping display panel 1's space, and the improvement screen accounts for than, realizes display panel 1's full-screen display, realizes more rationally that photosensitive assembly 2 and display panel 1's integration in display device 100 improves the convenience of use.
When photosensitive assembly 2 is started to needs, but to the circular telegram of deformable layer 10 for produce the electric field around deformable layer 10, deformable layer 10 takes place the deformation with the electric field coupling, and deformable layer 10 can deform the size that increases through-hole 70, in order to increase the light throughput that sees through first base plate 30 and reachs photosensitive assembly 2 through-hole 70, and photosensitive assembly 2 of being convenient for gathers light L and handles light L. In order not to affect the collection of the light L by the photosensitive assembly 2, the device layer 20 of the first display region 50 has pixels in the device layer 20 in a non-display state. When the photosensitive assembly 2 is used, the deformable layer 10 is powered off, the device layer 20 is restored to the original state, and the pixels in the device layer 20 are restored to display.
The display device 100 has a display panel 1 and at least one photosensitive assembly 2, the display panel 1 can display a picture or a video, the photosensitive assembly 2 can sense external light L, and the external light L is sensed and collected to generate an image of a corresponding object. The photosensitive member 2 is connected to the display panel 1 so that the display panel 1 displays an image generated by the photosensitive member 2. In an alternative embodiment, the photosensitive assembly 2 is disposed at an edge region of the display panel 1, which facilitates continuity of the display frame of the display panel 1 and has better user experience.
A third aspect of the present invention provides a terminal device including the display apparatus 100 described above. The terminal device provided by the embodiment of the invention can be a display terminal device such as a mobile phone, a computer and the like, the terminal device comprises a display device 100, in order to realize multiple functions of the terminal device, a photosensitive assembly 2 is usually arranged on the display device 100, and optionally, the photosensitive assembly 2 is a camera assembly capable of acquiring external images.
In the embodiment of the invention, the terminal equipment can stack the photosensitive assembly 2 below the display panel 1, so that the mutual influence between the photosensitive assembly 2 and the display panel 1 is avoided, the photosensitive assembly 2 is prevented from additionally occupying the space of the second substrate 40, the width of a frame in the terminal equipment is reduced, the screen occupation ratio and the attractiveness of the terminal can be improved, full-screen display is realized, and the user experience can be effectively improved.
In accordance with the above embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A display panel having a first display region and a second display region adjacent to each other, the display panel comprising:
a first substrate comprising opposing inner and outer surfaces;
the deformable layer is arranged on the inner surface of the first substrate and is positioned in the first display area, the first sizes of the deformable layer under the action of electric fields or magnetic fields with different strengths are different, and the first size is the size parallel to the direction of the surface of the first substrate; and
the device layer is arranged on the inner surface of the first substrate, covers the second display area and at least part of the deformable layer, and is internally provided with a plurality of pixels;
the display panel is provided with a through hole which at least penetrates through the deformable layer and the device layer in the direction perpendicular to the inner surface, and the deformation of the deformable layer can drive the device layer to deform synchronously.
2. The display panel according to claim 1, wherein the display panel has a first display state and a second display state;
in the first display state, the first dimension of the deformable layer is an original dimension, and the dimension of the through hole is smaller than or equal to the spacing between the pixels in the device layer;
in the second display state, the first size of the deformable layer is a deformation size, and the size of the through hole is larger than that of the through hole in the first display state.
3. The display panel of claim 2, wherein the deformable layer is a piezoelectric film layer;
preferably, in the first display state, the deformable layer is grounded or has a voltage of zero, and in the second display state, the deformable layer is energized.
4. The display panel of claim 2, wherein the deformable layer has an outer contour and an inner contour, the inner contour being a boundary of the through hole;
wherein an orthographic projection of the outer contour on the inner surface in the second display state is the same size as an orthographic projection of the outer contour on the inner surface in the first display state.
5. The display panel according to claim 4, wherein a distance between the outer contour and the inner contour in the second display state is smaller than a distance between the outer contour and the inner contour in the first display state.
6. The display panel of claim 2, wherein the deformable layer has an outer contour and an inner contour, the inner contour being a boundary of the through hole;
the deformable layer comprises a plurality of deformable units, and in the first display state, the plurality of deformable units are in contact with each other so that the outer contour and the inner contour of the deformable layer are continuous, and each deformable unit can be independently deformed;
preferably, in the second display state, the plurality of deformable units are separated from each other such that the outer contour and the inner contour of the deformable layer are discontinuous.
7. The display panel according to claim 1, wherein the through holes are provided in a plurality in number in the first display region, and the plurality of through holes are arranged at intervals in a direction parallel to the first substrate surface.
8. The display panel according to any one of claims 1 to 7, wherein the device layer has a first device layer unit covering the deformable layer and a second device layer unit located in the second display region, the pixels inside the first device layer unit and inside the second device layer unit having a display state and a non-display state, respectively;
in the first display state, the pixels inside the first device layer unit and inside the second device layer unit are in a display state;
in the second display state, the pixels in the first device layer unit are in a non-display state, and the pixels in the second device layer unit are in a display state.
9. The display panel of claim 1, wherein the device layer comprises a driving film layer on the deformable layer and a light emitting film layer on the driving film layer;
the display panel further includes:
a second substrate on the device layer.
10. A display device, comprising:
a display panel according to any one of claims 1 to 9;
at least one photosensitive assembly, set up in one side of the said external surface of the said first base plate and correspond to the said first display interval at least.
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| KR20210044920A (en) * | 2019-10-15 | 2021-04-26 | 삼성디스플레이 주식회사 | Foldable display device |
| CN114648919A (en) * | 2022-03-23 | 2022-06-21 | 维沃移动通信有限公司 | Screen module and electronic equipment |
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