CN113156721A

CN113156721A - Display panel and display device

Info

Publication number: CN113156721A
Application number: CN202110472786.7A
Authority: CN
Inventors: 陈建友; 钟彩娇
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-07-23
Anticipated expiration: 2041-04-29
Also published as: CN113156721B

Abstract

The invention discloses a display panel and a display device, belonging to the technical field of display, wherein the display panel comprises a first display area and a second display area, and the light transmittance of the first display area is greater than that of the second display area; the display panel in the first display area comprises a plurality of first sub-pixels, and the first sub-pixels comprise a first electrode and a second electrode which are oppositely arranged and mutually insulated; a first electrode of the display panel is positioned on the first electrode layer, and a second electrode of the display panel is positioned on the second electrode layer; the second electrode comprises at least one slit and at least two electrode main body parts, and the slit is positioned between the two adjacent electrode main body parts; the first electrode comprises a plurality of through holes, and at least one electrode main body part is mutually overlapped with the through holes in the direction perpendicular to the plane where the light-emitting surface of the display panel is located. The display device comprises the display panel. The invention can destroy the condition of diffraction formation, weaken the difference of the fringe electric field and improve the imaging effect of the camera while realizing the full-screen display.

Description

Display panel and display device

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

In the conventional display device, the display panel is mainly divided into two mainstream technologies of a liquid crystal display panel and an organic self-luminous display panel. With the development of display technologies, the market demand for display panels with high screen ratio is more and more urgent, and the display panels are developing towards full screen and light and thin. The full screen camera technology without leaving the screen is realized, in a full screen display scene, namely when an imaging function is not needed, a camera area can be used as a part of a display screen to carry out normal display, and the full screen display effect is realized; when an imaging function is needed, light rays penetrate through the camera area of the full screen and then enter the camera to form an image on the image sensor, and photographing is achieved.

At present, the design schemes of the under-screen camera display screens prepared by various methods can easily form diffraction conditions due to the influence of factors such as regularly arranged metal electrodes or shading metal patterns (microscopically presenting regular horizontal and vertical gullies), basically periodic arrangement of adjacent pixels and the like, and the superposition of diffraction effects can also generate color diffraction, so that the imaging quality problem of a camera area is caused, such as cross white light, color spots and the like in imaging, and the shooting and imaging effects of the camera are influenced.

Therefore, it is an urgent technical problem to provide a display panel and a display device that can not only improve the screen ratio and realize full-screen display, but also improve the imaging effect of a camera.

Disclosure of Invention

In view of the above, the present invention provides a display panel and a display device to solve the problem of poor imaging effect of the photosensitive elements such as the camera in the full-screen display technology in the prior art.

The invention discloses a display panel, comprising: the display device comprises a first display area and a second display area which are arranged adjacently, wherein the light transmittance of the first display area is greater than that of the second display area; in the first display area, the display panel comprises a plurality of first sub-pixels which are arranged in an array mode, and in the direction perpendicular to the plane where the light-emitting surface of the display panel is located, the first sub-pixels comprise a first electrode and a second electrode which are oppositely arranged and mutually insulated; the display panel further includes at least: a substrate; the first electrode layer is positioned on one side of the substrate facing the light-emitting surface of the display panel; the second electrode layer is positioned on one side of the first electrode layer, which is far away from the substrate; the first electrode is positioned on the first electrode layer, and the second electrode is positioned on the second electrode layer; the second electrode comprises at least one slit and at least two electrode main body parts, and the slit is positioned between the two adjacent electrode main body parts; the first electrode comprises a plurality of through holes, and at least one electrode main body part is mutually overlapped with the through holes in the direction perpendicular to the plane where the light-emitting surface of the display panel is located.

Based on the same inventive concept, the invention also discloses a display device, which comprises the display panel.

Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:

the display panel provided by the invention comprises a first display area and a second display area which are adjacently arranged, the light transmittance of the first display area is larger than that of the second display area, so that the first display area can realize the display function and can be reused as a light sensation element arrangement area, namely, the display panel can be provided with light sensation elements such as an off-screen camera and the like in the range of the first display area. When the photosensitive elements such as the under-screen camera and the like in the range of the first display area do not work, the second display area and the first display area jointly display the picture, so that the comprehensive screen display effect of the display panel is realized; and photosensitive element during operation such as camera under the screen of first display area within range, first display area has higher light transmittance, and photosensitive element such as camera can receive the external light that passes first display area under the screen and in order to realize setting for the function (for example the function of making a video recording) to when realizing full screen display, can realize again that high light transmittance provides the condition for photosensitive element's operation, realize the function of setting for photosensitive element such as camera under the screen. The display panel comprises a substrate, and a first electrode layer and a second electrode layer which are positioned on the substrate, wherein the first electrode layer is at least used for manufacturing a first electrode of a first sub-pixel, the second electrode layer is at least used for manufacturing a second electrode of the first sub-pixel, and the first electrode and the second electrode which are oppositely arranged and mutually insulated are used for generating a driving electric field; in the first display area, the second electrode comprises at least one slit and at least two electrode main body parts, the slit is positioned between the two adjacent electrode main body parts, namely the second electrode positioned above the first electrode is of a structure with at least one slit, the first electrode positioned below comprises a plurality of through holes, in the direction perpendicular to the plane where the light-emitting surface of the display panel is positioned, the at least one electrode main body part and the through holes are mutually overlapped, and through arranging the through holes on the first electrode below and at the positions corresponding to the electrode main body parts of the second electrode, not only can the regular and periodically arranged matrix structure be damaged, the diffraction phenomenon is weakened, but also the difference of the penetration rate of light between the area where the electrode main body part of the display panel is positioned and the area where the slit is positioned can be reduced, and the electric field deviation is reduced; and because the setting of the through-hole of the first electrode that is located the second electrode below for the rete of follow-up setting above the first electrode layer corresponds at the through-hole position and sinks, and the partial second electrode that corresponds the position of through-hole sinks promptly, can make local area's first electrode more be close with the second electrode, weakens the fringe electric field difference that first electrode and second electrode formed, thereby can further weaken the colored diffraction phenomenon that the electric field deviation brought through reducing the fringe electric field difference, and then be favorable to improving the formation of image effect of camera. The arrangement structure of the first electrode and the second electrode in the first display area can not only destroy the condition of diffraction formation, but also reduce the possibility of the occurrence of the color diffraction phenomenon generated by the superposition of diffraction effects by weakening the difference of the fringe electric field, improve the screen occupation ratio, realize the full-screen display and simultaneously improve the imaging effect of the camera.

Of course, it is not necessary for any product in which the present invention is practiced to specifically achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic plan view of a display panel according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the area M in FIG. 1;

FIG. 3 is a schematic sectional view taken along line A-A' of FIG. 2;

FIG. 4 is a schematic diagram of the structure of the second electrode layer in FIG. 2;

FIG. 5 is a schematic view of the structure of FIG. 2 with the second electrode layer removed;

FIG. 6 is another enlarged partial view of the area M in FIG. 1;

FIG. 7 is a schematic sectional view taken along line B-B' of FIG. 6;

FIG. 8 is a schematic view of the structure of FIG. 6 with the first electrode layer removed;

FIG. 9 is a schematic diagram of the structure of the first electrode layer in FIG. 6;

FIG. 10 is a schematic view of an alternative cross-sectional configuration taken along line A-A' of FIG. 2;

FIG. 11 is a schematic view of an alternative cross-sectional configuration taken along line B-B' of FIG. 6;

fig. 12 is a schematic plan structure view of the first electrodes and the second electrodes of the plurality of first sub-pixels in fig. 6;

FIG. 13 is another enlarged partial view of the area M in FIG. 1;

fig. 14 is a schematic plan structure view of first electrodes and second electrodes of a plurality of first sub-pixels in fig. 13;

FIG. 15 is another enlarged partial view of the area M in FIG. 1;

fig. 16 is a schematic plan structure view of the first electrodes and the second electrodes of the plurality of first sub-pixels in fig. 15;

FIG. 17 is another enlarged partial view of the area M in FIG. 1;

fig. 18 is a schematic plan structure view of first electrodes and second electrodes of a plurality of first sub-pixels in fig. 17;

fig. 19 is a schematic plan view of a display device according to an embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 to 9 in combination, fig. 1 is a schematic plan view of a display panel according to an embodiment of the present invention, fig. 2 is a partially enlarged view of an area M in fig. 1, fig. 3 is a schematic sectional view of an area a-a 'in fig. 2, fig. 4 is a schematic structural view of a second electrode layer in fig. 2, fig. 5 is a schematic structural view of fig. 2 with the second electrode layer removed, fig. 6 is another partially enlarged view of the area M in fig. 1, fig. 7 is a schematic sectional view of an area B-B' in fig. 6, fig. 8 is a schematic structural view of fig. 6 with the first electrode layer removed, and fig. 9 is a schematic structural view of the first electrode layer in fig. 6 (it can be understood that transparency filling is performed in the figures for clarity of the structure of the present embodiment), where a display panel 000 according to the present embodiment includes: the first display area AA1 and the second display area AA2 are adjacently arranged, and the light transmittance of the first display area AA1 is greater than that of the second display area AA 2;

in the first display area AA1, the display panel 000 includes a plurality of first sub-pixels 00 arranged in an array, and in a direction Z perpendicular to a plane where a light emitting surface of the display panel 000 is located, the first sub-pixels 00 include a first electrode 201 and a second electrode 301 that are disposed opposite to each other and insulated from each other;

the display panel 000 further includes at least:

a substrate 10;

a first electrode layer 20 located on a side of the substrate 10 facing the light emitting surface of the display panel 000;

a second electrode layer 30 located on a side of the first electrode layer 20 away from the substrate 10;

the first electrode 201 is positioned on the first electrode layer 20, and the second electrode 301 is positioned on the second electrode layer 30;

the second electrode 301 includes at least one slit 3011 (alternatively, in the figure, the example that one second electrode 301 includes three slits 3011 and four electrode main body portions 3012 is taken as an example for illustration, but not limited to this number of slits 3011), and at least two electrode main body portions 3012, the slit 3011 is located between two adjacent electrode main body portions 3012;

the first electrode 201 includes a plurality of through holes 2011, and at least one electrode main body portion 3012 overlaps with the through holes 2011 in a direction Z perpendicular to a plane where the light emitting surface of the display panel 000 is located.

Specifically, the display panel 000 provided in this embodiment includes a first display area AA1 and a second display area AA2 that are adjacently disposed, and the light transmittance of the first display area AA1 is set to be greater than the light transmittance of the second display area AA2, so that the first display area AA1 can realize a display function, and can be reused as a light sensing element setting area, that is, the display panel 000 can set light sensing elements such as an off-screen camera within the range of the first display area AA 1. Alternatively, the light transmittance of the first display area AA1 may be greater than that of the second display area AA2 by setting PPI (pixel density, which represents the number of Pixels possessed by the display panel Per Inch area) in the first display area AA1 to be smaller than that of the second display area AA2, or setting the first display area AA1 to have a light-transmitting area which is not included in the second display area AA2, and in this embodiment, the structure of the display panel in the first display area AA1 is not limited, and in a specific implementation, the structure may be set to be another structure which can achieve the light transmittance of the first display area AA1 to be greater than that of the second display area AA 2.

The display panel 000 in the first display area AA1 of this embodiment includes a plurality of first sub-pixels 00 arranged in an array, and optionally, the second display area AA2 of the display panel 000 may also include a plurality of second sub-pixels (not shown in the drawings) arranged in an array. Optionally, the first subpixels 00 arranged in a plurality of arrays and the second subpixels arranged in a plurality of arrays may be subpixels of a plurality of different colors. That is, when the photosensitive elements such as the under-screen camera in the range of the first display area AA1 do not work, the first sub-pixel 00 and the second sub-pixel act together, and the second display area AA2 and the first display area AA1 display the picture together, so that the full-screen display effect of the display panel 000 is realized; and when the photosensitive elements such as the under-screen camera in the range of the first display area AA1 work, because the first display area AA1 has higher light transmittance, the photosensitive elements such as the under-screen camera in the range of the first display area AA1 can receive the external light passing through the first display area AA1 to realize the setting function (for example, the camera shooting function), thereby realizing the display function of the first display area AA1, improving the screen occupation ratio, realizing the full-screen display, and simultaneously realizing the condition provided for the operation of the photosensitive elements by the high light transmittance, and realizing the setting function of the photosensitive elements such as the under-screen camera.

The display panel 000 of the present embodiment includes a substrate 10, and a first electrode layer 20 and a second electrode layer 30 located on the substrate 10, wherein the first electrode layer 20 is located on a side of the substrate 10 facing a light emitting surface of the display panel 000, the second electrode layer 30 is located on a side of the first electrode layer 20 away from the substrate 10, wherein the substrate 10 is used for carrying various film structures of the display panel 000, the first electrode layer 20 is at least used for manufacturing the first electrode 201 of the first sub-pixel 00, the second electrode layer 30 is at least used for manufacturing the second electrode 301 of the first sub-pixel 00, wherein, the first electrode 201 and the second electrode 301, which are oppositely arranged and insulated from each other, are used for generating a driving electric field, when the display panel 000 is a liquid crystal display panel, the driving electric field generated by the first electrode 201 and the second electrode 301 can drive the liquid crystal molecules of the liquid crystal layer to deflect in the electric field, so as to control whether the light is emitted or not, and further realize the display effect of the display panel 000.

Optionally, a thin film transistor, a gate line G, a data line S, and the like may be further formed on the substrate 10 of the display panel of this embodiment, where the thin film transistor may be used as a switching device of a sub-pixel (the first sub-pixel 00 and the second sub-pixel) of the display panel 000. The gate of the thin film transistor is connected to the gate line G of the display panel, and is connected to a gate scanning circuit (not shown) via the gate line G, the source of the thin film transistor is connected to the data line S, and is connected to an integrated circuit chip (IC, not shown) via the data line S, the drain of the thin film transistor is connected to the pixel electrode pixel, and a voltage is applied to the pixel electrode pixel via the data line S, so that an electric field is formed between the pixel electrode pixel and the common electrode com. The first sub-pixel 00 of the present embodiment includes a thin film transistor T, and a pixel electrode pixel electrically connected to a drain electrode of the thin film transistor T, wherein, as shown in fig. 2 and 3, the first electrode 201 is the pixel electrode pixel, and the second electrode 301 is the common electrode com, at this time, the drain electrode of the thin film transistor T is electrically connected to the first electrode 201, and the second electrode 301 used as the common electrode com is located above the first electrode 201 used as the pixel electrode pixel, as shown in fig. 4, the second electrode layer 30 may be a block structure, and each block structure second electrode 301 includes at least two electrode main body portions 3012 and a slit 3011 located between two adjacent electrode main portions 3012, optionally, the second electrodes 301 of the block structures corresponding to two adjacent first sub-pixels 00 may be connected to each other (as connected by the connection portion 300 in fig. 4), so as to reduce the number of input signal lines, at this time, as shown in fig. 5, the first electrode 201, which is located below and used as the pixel electrode pixel, may be a block structure or a structure formed by a plurality of strip-shaped electrodes (it is understood that, as shown in fig. 2 to 5, only the first electrode 201 is exemplified as a block structure).

Alternatively, as shown in fig. 6 and 7, the first electrode 201 is a common electrode com, the second electrode 301 is a pixel electrode pixel, and at this time, the drain of the thin film transistor T is electrically connected to the second electrode 301, and the second electrode 301 used as the pixel electrode pixel is located above the first electrode 201 used as the common electrode com, as shown in fig. 8, the second electrode 301 used as the pixel electrode pixel includes at least two electrode main body portions 3012 and a slit 3011 located between two adjacent electrode main body portions 3012, further alternatively, the electrode main body portions 3012 may be a stripe structure, and at this time, as shown in fig. 9, the first electrode layer 20 may be a structure laid on the whole, and a through hole 2011 is opened only at a position corresponding to the electrode main body portion 3012 of the second electrode 301, alternatively, because the drain of the thin film transistor T needs to pass through the first electrode layer 20 and be electrically connected to the second electrode 301, as shown in fig. 6 and 9, the first electrode layer 20 at the drain of the thin film transistor T is further provided with a fourth through hole K for electrically connecting the drain of the thin film transistor T to the second electrode 301 used as the pixel electrode pixel, so that an electric field for driving liquid crystal molecules to deflect is formed between the first electrode 201 and the second electrode 202 by the arrangement of the first electrode 201 and the second electrode 301, thereby realizing a display function.

In the first display area AA1 of this embodiment, the second electrode 301 includes at least one slit 3011 and at least two electrode main body portions 3012, the slit 3011 is located between two adjacent electrode main body portions 3012, that is, the second electrode 202 located above the first electrode 201 has a structure with at least one slit 3011, and the first electrode 201 located below includes a plurality of through holes 2011, in the direction Z perpendicular to the plane where the light-emitting surface of the display panel 000 is located, at least one electrode main body portion 3012 overlaps the through holes 2011 (it is understood that, in the drawings of this embodiment, only one electrode main body portion 3012 overlaps the through holes 2011 for illustration, and it does not indicate that each electrode main body portion 3012 must have a through hole 2011, and in one second electrode 301, only one electrode main body portion 3012 needs to overlap the through holes 2011), by overlapping, or overlapping, on the first electrode 201 below, The through holes 2011 are formed in positions corresponding to the electrode main body portions 3012 of the second electrodes 202, so that not only can the regular matrix structure which is periodically arranged be destroyed by adjusting the shapes of the first electrodes 201 and the second electrodes 301, the diffraction phenomenon be weakened, but also the difference of the penetration rate of light between the area where the electrode main body portions 3012 of the display panel 000 are located and the area where the slits 3011 are located can be reduced, and the deviation of an electric field can be reduced; due to the arrangement of the through hole 2011 of the first electrode 201 located below the second electrode 301, a film layer subsequently arranged above the first electrode layer 20 correspondingly sinks at the position of the through hole 2011 (as shown in fig. 3 and 7), that is, a part of the second electrode 201 at the position corresponding to the through hole 2011 sinks, so that the first electrode 201 and the second electrode 301 in a local area (the area corresponding to the through hole 2011) can be closer, the difference of the fringe electric field formed by the first electrode 201 and the second electrode 301 is weakened, the color diffraction phenomenon caused by electric field deviation can be further weakened by reducing the difference of the fringe electric field, and the imaging effect of the camera is further improved. This embodiment not only can destroy the condition that the diffraction formed to the arrangement structure of first electrode 201 and second electrode 301 in first display area AA1, can also reduce the colored diffraction phenomenon that the superposition of diffraction effect produced and take place the possibility through weakening fringe electric field difference, improves the screen and accounts for the ratio, when realizing the display of full-face screen, can also improve the imaging effect of camera.

It should be noted that the display panel provided in this embodiment may be a liquid crystal display panel, and a light source is provided through a backlight module (not shown). The liquid crystal display panel generally includes a Color Filter (CF) substrate (not shown), a Thin Film Transistor (TFT) array substrate, and a liquid crystal layer (not shown) between the two substrates, where the TFT array substrate may include the substrate 10, the first electrode layer 20, and the second electrode layer 30 of this embodiment, and the operation principle is that a driving voltage is applied to control the rotation of liquid crystal molecules in the liquid crystal layer, and a light source provided by the backlight module penetrates through the TFT array substrate of the liquid crystal display panel, is refracted from the liquid crystal layer of the display panel, and generates a Color picture through the CF substrate.

It is understood that fig. 1 of the present embodiment only schematically illustrates the shape of the first display area AA1, and in a specific implementation, the shape of the first display area AA1 may be set to be a regular shape, such as a right-angle rectangle, a rounded rectangle, a circle, an ellipse, or the like, and the shape of the first display area AA1 may also be set to be an irregular shape, such as a drop shape of the first display area AA 1. In practical applications, the shape of the first display area AA1 may be designed according to the shape of the light sensing element disposed in the first display area AA1, and the embodiment is not limited herein.

It is understood that fig. 1 of the present embodiment only schematically illustrates a relative position relationship between the first display area AA1 and the second display area AA2, but is not limited thereto, the relative position relationship and the shape of the first display area AA1 and the second display area AA2 of the present embodiment are not limited thereto, and may be specifically set according to the screen design of the display panel 000, for example, the second display area AA2 may surround the first display area AA1 (as shown in fig. 1), and the first display area AA1 may also be set in a corner or an edge of the second display area AA2, and the present embodiment is not limited thereto.

It can be understood that fig. 3 and fig. 7 of this embodiment only schematically illustrate a partial cross-sectional structure of the display panel, and in specific implementation, the film structure of the display panel is not limited thereto, and may further include, for example, a liquid crystal layer, each insulating layer, a CF substrate, and the like.

Optionally, the shape of the through hole 2011 formed in the first electrode 201 includes any one of a circle, an ellipse, and a diamond. In fig. 5 and 9 of this embodiment, the shape of the through-hole 2011 is only schematically drawn to be a circle, but is not limited thereto, and in a specific implementation, the shape of the through-hole 2011 may be other regular patterns such as a square, an ellipse, a diamond, a polygon, a trapezoid, a triangle, and the like, and may also be other irregular patterns (i.e., having an irregular wave shape or a zigzag boundary), and this embodiment is not limited specifically.

It should be noted that, in this embodiment, the number of the through holes 2011 formed in the first electrode 201 is not specifically limited, and only the condition that diffraction formation can be destroyed needs to be satisfied, and the second electrode 301 in a local area can also be made to sink to be close to the first electrode 201, so that the fringe electric field difference is weakened, and the imaging effect of the camera is improved.

In some alternative embodiments, please continue to refer to fig. 1 to fig. 9, in this embodiment, the display panel 000 further includes a first insulating layer 40, the first insulating layer 40 is located between the first electrode layer 20 and the second electrode layer 30;

the side of the first insulating layer 40 away from the substrate 10 includes a plurality of grooves 401, and the grooves 401 correspond to the through holes 2011 one to one;

at least a portion of the electrode body portion 3012 is located within the recess 401.

The present embodiment illustrates that at least the first insulating layer 40 is included between the first electrode layer 20 and the second electrode layer 30, so as to insulate the first electrode 201 and the second electrode 301 from each other. The side of the first insulating layer 40 away from the substrate 10 includes a plurality of grooves 401, and it is understood that the grooves 401 may be formed by sinking the first insulating layer 40 in the region corresponding to the through-hole 2011 due to the through-hole 2011 on the first electrode 201 when the first insulating layer 40 is deposited on the side of the first electrode layer 20 away from the substrate 10, or may be formed by etching the side of the first insulating layer 40 away from the substrate 10. The grooves 401 correspond to the through holes 2011 one to one, so that when the second electrode layer 30 is continuously manufactured on the side, away from the substrate 10, of the first insulating layer 40, the second electrode layer 30 in a local area can continuously sink at the position of the groove 401, namely at least part of the electrode main body portion 3012 is located in the groove 401, the electrode main body portion 3012 in the position corresponding to the through hole 2011 is closer to the substrate 10 than the electrode main body portions 3012 in other positions, not only can the condition of diffraction formation be damaged, but also the possibility of color diffraction phenomenon generated by superposition of diffraction effects can be reduced by weakening the difference of edge electric fields, the screen occupation ratio is improved, full-screen display is realized, and meanwhile, the imaging effect of a camera can be improved.

Optionally, the electrode main body portion 3012 of the second electrode 301 includes a plurality of first sub-portions 30120, where the first sub-portions 30120 are portions of the electrode main body portion 3012 located in the grooves 401, it can be understood that the first sub-portions 30120 and the rest portions of the electrode main body portion 3012 not located in the grooves 401 are still in an integral structure, and when the second electrode layer 30 is manufactured, the first sub-portions 30120 of the electrode main body portion 3012 sink into the grooves 401 of the first insulating layer 40, so that the first sub-portions 30120 correspond to the through holes 2011 one to one.

In some alternative embodiments, referring to fig. 1-9, 10 and 11 in combination, fig. 10 is a schematic cross-sectional view along a-a 'direction in fig. 2, fig. 11 is a schematic cross-sectional view along B-B' direction in fig. 6, and in a direction Z perpendicular to a plane of a light emitting surface of the display panel 000, a thickness D1 of the first sub-portion 30120 is less than or equal to a depth D2 of the groove 401.

In the embodiment, it is explained that, in the direction Z perpendicular to the plane of the light emitting surface of the display panel 000, the thickness D1 of the first sub-portion 30120 may be smaller than the depth D2 of the groove 401 (as shown in fig. 3 and fig. 7), so that the first electrode 201 and the second electrode 301 in a local area (an area corresponding to the through hole 2011) may be closer to each other, and the fringe electric field difference formed between the first electrode 201 and the second electrode 301 is reduced, so that the color diffraction phenomenon caused by the electric field deviation may be further reduced by reducing the fringe electric field difference, and the imaging effect of the camera is further improved. Optionally, in a direction Z perpendicular to the plane of the light emitting surface of the display panel 000, the thickness D1 of the first sub-portion 30120 may be equal to the depth D2 of the groove 401 (as shown in fig. 10 and 11), which may be equivalent to a local planarization effect, so that the initial states of the area where the liquid crystal closest to the second electrode layer 30 is located in the first sub-portion 30120 and the area where the slit 3011 is located are as similar as possible, and the fringe field difference is reduced as much as possible.

In some alternative embodiments, please refer to fig. 1-11 and 12 in combination, fig. 12 is a schematic plan structure diagram of the first electrode and the second electrode of the plurality of first sub-pixels in fig. 6, in this embodiment, the second electrode 301 includes a plurality of electrode main body portions 3012 and a plurality of slits 3011 respectively located between two adjacent electrode main body portions 3012, the electrode main body portions 3012 are strip-shaped sub-electrode structures, and optionally, the electrode main body portions 3012 of two adjacent strip-shaped sub-electrode structures are connected at end portions, so that the second electrode 301 formed by the plurality of electrode main body portions 3012 and the plurality of slits 3011 is still an integral structure;

the length of the electrode main body portion 3012 along the first direction Y is a;

the width of the electrode main body portion 3012 along the second direction X is b;

in a plurality of through holes 2011 overlapped with one electrode main body part 3012 in a direction Z perpendicular to a plane where a light-emitting surface of the display panel 000 is located, the density of the through holes 2011 is rho, and rho is less than or equal to a/2 b; the first direction Y is an extending direction of the electrode main body portion 3012, and the first direction Y intersects with the second direction X, and optionally, the first direction Y and the second direction X are perpendicular to each other on a plane parallel to the light emitting surface of the display panel 000.

The present embodiment explains the arrangement density of the through holes 2011 overlapped with one electrode main body portion 3012, and satisfies the density ρ ≦ a/2b, where a represents the length of the electrode main body portion 3012 in the first direction Y (the extending direction of the electrode main body portion 3012 of the stripe sub-electrode structure), and b represents the width of the electrode main body portion 3012 in the second direction X, and the present embodiment sets the arrangement density of the through holes 2011 on the first electrode 201, so that the through holes 2011 satisfy the condition of overlapping with one electrode main body portion 3012 and destroying the diffraction formation of the electrode main body portion 3012 of the regular stripe structure, and sinks along with the digging of the through holes 2011 by the first sub-portions 30120 of the electrode main body portion 3012, so as to reduce the fringe electric field difference, reduce the possibility of the occurrence of the color diffraction phenomenon caused by the superposition of the diffraction effect, improve the imaging effect of the camera, and simultaneously avoid the arrangement density of the through holes 2011 overlapped with one electrode main body portion 3012 being too high, the number of the through holes 2011 is too large, which affects the integrity of the electrode main body portion 3012.

Optionally, with continued reference to fig. 1-12, the inner diameter of the through-hole 2011 is c, where c ≧ 30% b, where b denotes the width of the electrode main body 3012 in the second direction X.

The embodiment explains that the inner diameter c of the through hole 2011 formed in the first electrode 201 satisfies that c is greater than or equal to 30% of the width of the electrode main body portion 3012 in the second direction X, so that it can be avoided that the inner diameter c of the through hole 2011 is too large, so that the first sub-portion 30120 is too wide, so that the electrode main body portion 3012 breaks at the position of the through hole 2011 due to the too wide first sub-portion 30120, it can also be avoided that the inner diameter c of the through hole 2011 is too small, and there is not enough space at the corresponding position of the through hole 2011, so that the first sub-portion 30120 of the electrode main body portion 3012 sinks, thereby reducing the possibility of occurrence of a color diffraction phenomenon caused by superposition of diffraction effects, and further failing to improve the imaging effect of the camera.

In some alternative embodiments, please refer to fig. 1, fig. 3, fig. 7, fig. 13 and fig. 14 in combination, fig. 13 is another partial enlarged view of the area M in fig. 1, fig. 14 is a schematic plan view of the first electrodes and the second electrodes of the plurality of first sub-pixels in fig. 13, fig. 15 is another partial enlarged view of the area M in fig. 1, fig. 16 is a schematic plan view of the first electrodes and the second electrodes of the plurality of first sub-pixels in fig. 15, in this embodiment, the second electrode 301 includes at least two adjacent electrodes 3012 and a first electrode main body 30121 and a second electrode main body 30122, respectively, and the plurality of through holes 2011 includes a plurality of first through holes 20111 and a plurality of second through holes 20112;

in a direction Z perpendicular to a plane of the light emitting surface of the display panel 000, the first through hole 20111 and the first electrode main body portion 30121 overlap each other, and the second through hole 20112 and the second electrode main body portion 30122 overlap each other;

in the second direction X, a projection of the first through-hole 20111 and a projection of the second through-hole 20112 are at least partially non-overlapping.

In the embodiment, it is explained that, in the second direction X, the projection of the first through-hole 20111 and the projection of the second through-hole 20112 are at least partially not overlapped, that is, in the second direction X, the projection of the first through-hole 20111 and the projection of the second through-hole 20112 may only be partially not overlapped (as shown in fig. 13 and 14), or, in the second direction X, the projection of the first through-hole 20111 and the projection of the second through-hole 20112 may also be completely not overlapped (as shown in fig. 15 and 16, the projection of any first through-hole 20111 is located between the projections of two adjacent second through-holes 20112), so that the through-holes 2011 respectively corresponding to two adjacent electrodes 3012 are arranged in a staggered manner and in an irregular manner, a condition of diffraction formation may be further destroyed, and the imaging quality of the camera may be further improved.

In some alternative embodiments, please refer to fig. 1, fig. 7, fig. 17 and fig. 18 in combination, where fig. 17 is another partial enlarged view of the region M in fig. 1, fig. 18 is a schematic plan view of the first electrodes and the second electrodes of the first sub-pixels in fig. 17, in this embodiment, in a direction Z perpendicular to a plane where the light emitting surface of the display panel 000 is located, the through holes 2011 overlapped with one electrode main body portion 3012 are third through holes 20113;

the third through holes 20113 are communicated with each other in a direction parallel to the light emitting surface of the display panel 000.

This embodiment explains that, on the first electrode 201, the through holes 2011 overlapped with one electrode main body portion 3012 may also be communicated with each other to form a slit (as shown in fig. 18), that is, in the direction Z perpendicular to the plane where the light-emitting surface of the display panel 000 is located, the through holes 2011 overlapped with one electrode main body portion 3012 are the third through holes 20113, the third through holes 20113 may also be arranged densely, at this time, the through holes 20113 are communicated with each other in the direction parallel to the light-emitting surface of the display panel 000, a slit structure is formed below at least one electrode 3012, so that the regular and periodically arranged matrix structure may be destroyed by adjusting the shapes of the first electrode 201 and the second electrode 301, the diffraction phenomenon is reduced, the difference of the penetration rate of light between the area where the electrode main body portion 3012 of the second electrode 301 of the display panel 000 is located and the area where the slit 3011 is located is reduced, the electric field deviation can be reduced, the difference of the fringe electric field can be adjusted, the color diffraction phenomenon caused by the electric field deviation is further weakened, and the imaging effect of the camera is improved.

In some alternative embodiments, please refer to fig. 19, fig. 19 is a schematic plane structure diagram of a display device according to an embodiment of the present invention, and the display device 111 according to this embodiment includes the display panel 000 according to the above embodiment of the present invention. The embodiment of fig. 19 only uses a mobile phone as an example to describe the display device 111, and it should be understood that the display device 111 provided in the embodiment of the present invention may be other display devices 111 having a display function, such as a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. The display device 111 provided in the embodiment of the present invention has the beneficial effects of the display panel 000 provided in the embodiment of the present invention, and specific reference may be made to the specific description of the display panel 000 in the above embodiments, which is not described herein again.

As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel, comprising: the display device comprises a first display area and a second display area which are arranged adjacently, wherein the light transmittance of the first display area is greater than that of the second display area;

in the first display area, the display panel comprises a plurality of first sub-pixels arranged in an array mode, and in the direction perpendicular to the plane where the light-emitting surface of the display panel is located, the first sub-pixels comprise a first electrode and a second electrode which are oppositely arranged and mutually insulated;

the display panel further includes at least:

a substrate;

the first electrode layer is positioned on one side, facing the light-emitting surface of the display panel, of the substrate;

the second electrode layer is positioned on one side, far away from the substrate, of the first electrode layer;

the first electrode is positioned on the first electrode layer, and the second electrode is positioned on the second electrode layer;

the second electrode comprises at least one slit and at least two electrode main body parts, and the slit is positioned between two adjacent electrode main body parts;

the first electrode comprises a plurality of through holes, and at least one electrode main body part is mutually overlapped with the through holes in the direction perpendicular to the plane where the light-emitting surface of the display panel is located.

2. The display panel according to claim 1,

the display panel further comprises a first insulating layer between the first electrode layer and the second electrode layer;

one side, far away from the substrate, of the first insulating layer comprises a plurality of grooves, and the grooves correspond to the through holes one to one;

at least part of the electrode main body part is positioned in the groove.

3. The display panel according to claim 2, wherein the electrode main body portion includes first sub-portions located in the grooves, the first sub-portions corresponding to the through holes one to one.

4. The display panel of claim 3, wherein the thickness of the first sub-portion is smaller than or equal to the depth of the groove in a direction perpendicular to the plane of the light emitting surface of the display panel.

5. The display panel according to claim 1, wherein the first subpixel comprises a thin film transistor, a pixel electrode electrically connected to a drain electrode of the thin film transistor;

the first electrode is the pixel electrode, and the second electrode is a common electrode; alternatively, the first and second electrodes may be,

the first electrode is a common electrode, and the second electrode is the pixel electrode.

6. The display panel according to claim 1, wherein the electrode main body portion has a stripe structure.

7. The display panel according to claim 1,

the length of the electrode main body part along the first direction is a;

the width of the electrode main body part is b along the second direction;

in the direction perpendicular to the plane of the light emergent surface of the display panel, the through holes are overlapped with one electrode main body part, the density of the through holes is rho, and rho is less than or equal to a/2 b; wherein the first direction is an extending direction of the electrode main body portion, and the first direction intersects with the second direction.

8. The display panel of claim 7, wherein the through hole has an inner diameter c, wherein c is greater than or equal to 30% b.

9. The display panel according to claim 7, wherein the second electrode includes at least two adjacent electrode main body portions, namely a first electrode main body portion and a second electrode main body portion, and the plurality of through holes include a plurality of first through holes and a plurality of second through holes;

in a direction perpendicular to a plane where a light-emitting surface of the display panel is located, the first through hole and the first electrode main body portion are overlapped with each other, and the second through hole and the second electrode main body portion are overlapped with each other;

in the second direction, a projection of the first through hole and a projection of the second through hole are at least partially non-overlapping.

10. The display panel according to claim 1, wherein the plurality of through holes overlapping one of the electrode main body portions in a direction perpendicular to a plane of the light exit surface of the display panel are third through holes;

and the third through holes are communicated with each other in the direction parallel to the light-emitting surface of the display panel.

11. The display panel according to claim 1, wherein the shape of the through hole includes any one of a circle, an ellipse, and a diamond.

12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.