CN112233560B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112233560B CN112233560B CN202011191867.1A CN202011191867A CN112233560B CN 112233560 B CN112233560 B CN 112233560B CN 202011191867 A CN202011191867 A CN 202011191867A CN 112233560 B CN112233560 B CN 112233560B
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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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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Abstract
The invention discloses a display panel and a display device, which relate to the technical field of display and comprise a display area and a non-display area, wherein the display area comprises a first display area and a second display area, and the transmittance of the second display area is greater than that of the first display area; the display area comprises a first light shielding part and a plurality of light transmitting parts, and the orthographic projection of the light transmitting parts on the light emitting surface of the display panel is positioned in the outer contour range of the orthographic projection of the first light shielding part on the light emitting surface; at least in the second display region, a contour line between the first light shielding portion and at least a part of the light transmitting portion includes a curved line segment. Therefore, the diffraction phenomenon of the second display area is favorably improved, and the shooting effect is favorably improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the development of display technologies, display panels have higher and higher screen occupation ratios, and comprehensive screens have wide attention due to the narrow-frame and even frameless display effects. At present, spaces are often reserved for electronic photosensitive devices such as commonly used front cameras, infrared sensing devices and fingerprint identification devices on the front of display equipment such as mobile phones and tablet computers. For example, the photosensitive devices are arranged at the top position of the front surface of the display device, and the corresponding positions form a non-display area, so that the screen occupation ratio of the device is reduced.
In the prior art, in order to increase the screen ratio, a high-transmittance region may be formed in the display region of the display panel to accommodate the above-mentioned light sensing device.
With the development and demand of full-screen, more and more electronic photosensitive devices are required to be integrated below the screen. For example, a camera is disposed below the screen and a position corresponding to the camera is set as a high-light-transmission region. When the display is normal, the high-light-transmittance area can play a display role; when needing to take a picture or take a video, the camera shoots a picture or a video through the high light-transmitting area. However, due to structural limitation of the high light transmission region, diffraction is likely to occur in the high light transmission region, which affects the shooting effect.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device, where at least in the second display area, the contour line between the first light shielding portion and at least part of the light transmitting portion includes an arc line segment, which is beneficial to improving the diffraction phenomenon of the second display area, thereby being beneficial to improving the shooting effect.
In a first aspect, the present application provides a display panel, including a display area and a non-display area, where the display area includes a first display area and a second display area, and a transmittance of the second display area is greater than a transmittance of the first display area;
the display area comprises a first light shielding part and a plurality of light transmitting parts, and the orthographic projection of the light transmitting parts on the light emitting surface of the display panel is positioned in the outer contour range of the orthographic projection of the first light shielding part on the light emitting surface;
at least in the second display area, the contour line between the first shading part and at least part of the light-transmitting part comprises an arc line segment.
In a second aspect, the present application provides a display device including the display panel provided by the present application.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
in the display panel and the display device provided by the application, a second display area is arranged, the transmittance of the second display area is greater than that of the first display area, and the second display area comprises a first shading part and a plurality of light transmission parts. Optionally, a part of the light-transmitting portions is filled with a red color resistor, a green color resistor or a blue color resistor, and in a display state, the light-transmitting portions filled with the red, green and blue color resistors in the second display region can perform a display function. Optionally, the other part of the light-transmitting portion is filled with a high-transmittance color resistor or is not filled with a color resistor, and when the camera is arranged in the region corresponding to the second display region, the light-transmitting portion filled with the high-transmittance color resistor or not filled with the color resistor in the second display region is used as the light-transmitting region, so that the camera realizes a picture shooting function. Especially, at least in the second display area, the contour line between the first shading part and at least part of the light transmission part comprises an arc line segment, and when the arc line segment is arranged in the second display area, compared with a straight line segment, the diffraction degree of the second display area can be greatly reduced, so that the influence of the diffraction phenomenon on the picture quality shot by the second display area is reduced, and the shooting image quality is improved.
Of course, it is not necessary for any product in which the invention is practiced to 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 top view of a display panel according to an embodiment of the invention;
FIG. 2 is a diagram showing a relative position of a first light-shielding portion and a light-transmitting portion in a first display region;
FIG. 3 is a diagram showing a relative position relationship between the first light-shielding portion and the light-transmitting portion in the second display region;
FIG. 4 is a view showing another relative positional relationship of the first light shielding portion and the light transmitting portion in the first display region;
FIG. 5 is a BB cross-sectional view of the display panel of FIG. 1;
FIG. 6 is a schematic diagram of a structure of a pixel electrode in a first display region;
FIG. 7 is a schematic diagram of a structure of a pixel electrode in the second display region;
FIG. 8 is a cross-sectional view of the display panel of FIG. 1, taken along line CC;
FIG. 9 is a plan view of a second light shielding portion disposed on a second substrate;
FIG. 10 is a schematic structural view of the present invention in which the contour lines between the first light-shielding portion and the light-transmitting portion are all arcs;
FIG. 11 is a schematic view of another structure in which the contour lines between the first light-shielding portion and the light-transmitting portion are all arcs;
FIG. 12 is a schematic view of another structure in which the contour lines between the first light-shielding portion and the light-transmitting portion are all arcs according to the present invention;
FIG. 13 is a schematic view of another structure in which the outlines of the first light-shielding portion and the light-transmitting portion are arcs;
fig. 14 is a schematic view of a display device according to an embodiment of the present disclosure.
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, it need not be discussed further in subsequent figures.
Among the prior art, for realizing comprehensive screen design, set up the camera setting in the below of screen and the position that corresponds the camera and set up to high light-transmitting zone. When the display is normal, the high-light-transmittance area can play a display role; when a picture or a video needs to be taken, the camera takes a picture or a video through the high light-transmitting area. However, due to structural limitations of the high-transmittance region, for example, the contour line of the corresponding light-transmitting portion in the high-transmittance region is generally embodied as a straight line structure, and when light passes through a region between two straight lines, diffraction is likely to occur, which affects the shooting effect.
In view of this, the present invention provides a display panel and a display device, where at least in the second display area, the contour line between the first light shielding portion and at least part of the light transmitting portion includes an arc line segment, which is beneficial to improving the diffraction phenomenon of the second display area, thereby being beneficial to improving the shooting effect.
The following detailed description is made with reference to the accompanying drawings and examples.
Fig. 1 is a top view of a display panel according to an embodiment of the present invention, fig. 2 is a diagram showing a relative position relationship between a first light-shielding portion and a light-transmitting portion in a first display region, and fig. 3 is a diagram showing a relative position relationship between a first light-shielding portion and a light-transmitting portion in a second display region; referring to fig. 1 to fig. 3, a display panel 100 provided by the present invention includes a display area AA and a non-display area NA, where the display area AA includes a first display area 11 and a second display area 12, and a transmittance of the second display area 12 is greater than a transmittance of the first display area 11;
the display area AA includes a first light-shielding portion 10 and a plurality of light-transmitting portions 20, and an orthogonal projection of the light-transmitting portion 20 on a light-emitting surface of the display panel 100 is located within an outer contour range of an orthogonal projection of the first light-shielding portion 10 on the light-emitting surface;
at least in the second display region 12, the contour line 30 between the first light-shielding portion 10 and at least a part of the light-transmitting portion 20 includes a segment of an arc line.
It should be noted that fig. 1 only shows that the display panel 100 includes one second display area 12, in some other embodiments of the present application, two or more second display areas 12 may be further disposed on the display panel 100 as needed, which is not specifically limited in the present application, and the following only takes the case where the display panel 100 includes one second display area 12 as an example, and when the display panel 100 includes a plurality of second display areas 12, all the embodiments of the present application can be referred to. Fig. 1 also only shows a relative position relationship between the second display area 12 and the first display area 11 in the display panel 100, and in some other embodiments of the present application, the second display area 12 may also be located at other positions in the display panel 100, which is not specifically limited in the present application; in addition, the shape of the second display area 12 in fig. 1 is also only schematic, in some other embodiments of the present application, the second display area 12 may also have other shapes such as a circle, and the size of the second display area 12 may also be set according to actual requirements, which is not specifically limited in this application.
Specifically, referring to fig. 1 to 3, the display panel 100 provided by the present application is provided with a second display area 12, a transmittance of the second display area 12 is greater than a transmittance of the first display area 11, the second display area 12 includes a first light shielding portion 10, and the first light shielding portion 10 includes a plurality of light-transmitting portions 20. Alternatively, in the second display region 12, a part of the light-transmitting portion 20 is used for filling a red color resist, a green color resist or a blue color resist, and in the display state, the light-transmitting portion 20 filled with the red, green and blue color resists in the second display region 12 may perform the display function. Optionally, in the second display area 12, another part of the light-transmitting portion 20 is filled with a high-transmittance color resist or is not filled with a color resist, and when a camera is disposed in a region corresponding to the second display area 12, the light-transmitting portion 20 filled with a high-transmittance color resist or not filled with a color resist is used as a light-transmitting region in the second display area 12, so that the camera implements a picture taking function. Particularly, at least in the second display area 12, the contour line 30 between the first light shielding portion 10 and at least part of the light transmitting portion 20 includes an arc line segment, and when the arc line segment is disposed in the second display area 12, the diffraction degree of the second display area 12 can be greatly reduced compared with a straight line segment, so that the influence of diffraction phenomenon on the quality of the picture photographed by the second display area 12 can be reduced, and the photographing quality can be improved.
In addition, in the prior art, when the shape of the contour line between the first light shielding portion and the light transmitting portion in the second display area is a straight line, a significant star-shaped light spot phenomenon may occur in the photographed picture in the picture photographing stage, and the applicant finds, through research, that when the contour line between the first light shielding portion 10 and the light transmitting portion 10 in the second display area 12 is set as an arc line segment, the size of the star-shaped light spot may be significantly reduced, the area of the star-shaped light spot may be reduced, for example, the radiation area of the star-shaped light spot may be reduced, thereby being beneficial to improving the photographing image quality of the second display area.
It is understood that in the first display region 11, the light-transmitting portion 20 is used to fill color resists for display, such as a red resist, a green resist, and a blue resist. In the second display area 12, only a part of the light-transmitting portion 20 is filled with a color resistor for displaying, and the other part of the light-transmitting portion 20 is filled with a high color resistor (for example, a white color resistor) or is not filled with a color resistor, so as to improve the transmittance of the second display area 12.
It should be noted that the contour line 30 between the first light shielding portion 10 and the translucent portion 20 mentioned in the present invention actually refers to the boundary line between the translucent portion 20 and the first light shielding portion 10, fig. 3 only illustrates the case where the contour line 30 between the first light shielding portion 10 and the translucent portion 20 in the second display area 12 is a circle, and in some other embodiments of the present invention, the contour line 30 between the first light shielding portion 10 and the translucent portion 20 in the second display area 12 may also be embodied as another arc-line structure, which is not specifically limited in the present application. Fig. 2 and 3 are also only partial illustrations of the first display region 11 and the second display region 12, and do not represent the actual number and size of the light-transmitting portions 20 included in the first display region 11 and the second display region 12.
Fig. 2 shows a case where the contour line 30 between the first light shielding portion 10 and the light transmitting portion 20 in the first display region 11 includes a straight line segment, and in an alternative embodiment of the invention, fig. 4 shows another relative position relationship diagram of the first light shielding portion 10 and the light transmitting portion 20 in the first display region 11, please refer to fig. 4, where the contour line 30 between the first light shielding portion 10 and at least a part of the light transmitting portion 20 in the first display region 11 includes an arc line segment.
It should be noted that fig. 4 only illustrates that the contour line 30 between the first light shielding portion 10 and the light transmitting portion 20 in the first display region 11 is a circle, but in some other embodiments of the present invention, the contour line 30 between the first light shielding portion 10 and the light transmitting portion 20 in the first display region 11 may also be embodied in other curved line structures, and the present application is not limited to this.
Specifically, when the contour line 30 between the first light shielding portion 10 and at least part of the light transmitting portion 20 in the second display area 12 includes an arc line segment, the present application sets the contour line 30 between the first light shielding portion 10 and at least part of the light transmitting portion 20 in the first display area 11 to also include an arc line segment, which is beneficial to reducing a phenomenon that the first display area 11 and the second display area 12 have a significant display unevenness due to a difference in shape of the contour line 30 corresponding to the light transmitting portion 20 in the first display area 11 and the second display area 12 in a display stage of the display panel 100, thereby being beneficial to improving the diffraction phenomenon of the second display area 12 and also being beneficial to improving the display uniformity of the first display area 11 and the second display area 12.
In an alternative embodiment of the present invention, referring to fig. 3 and 4, in the second display area 12 and the first display area 11, the contour line 30 between the first light shielding portion 10 and the light transmitting portion 20 is an arc line.
Specifically, in the second display area 12 and the first display area 11, when the contour lines 30 between the first light shielding portion 10 and the light transmitting portion 20 are all set to be the arcs, the original regular arrangement structure in the second display area 12 is effectively destroyed, the arrangement of the contour lines 30 between the light shielding portion and the light transmitting portion 20 in the second display area 12 is more irregular, which is more beneficial to improving the diffraction phenomenon of the second display area 12, and therefore, when the shape of the contour lines 30 between each light shielding portion and the light transmitting portion 20 in the second display area 12 is all set to be the arcs, the diffraction phenomenon of the second display area 12 is more beneficial to being improved, thereby being more beneficial to improving the shooting image quality of the second display area 12.
In addition, when the contour line 30 of the second display area 12 adopts an arc structure and the contour line 30 of the first display area 11 adopts a straight structure, the first display area 11 and the second display area 12 may have a significant display unevenness in the display stage. When the contour lines 30 between the first light shielding portion 10 and the light transmission portions 20 in the first display area 11 are also set to be the arcs, the shape difference of the contour lines 30 in the whole first display area 11 and the whole second display area 12 is favorably reduced, so that the display uniformity of the first display area 11 and the second display area 12 in the display stage in the display panel 100 is more favorably improved, and the display effect of the display panel 100 is more favorably improved.
It can be understood that the translucent portion 20 in the first display area 11 is correspondingly filled with different color resists, and the contour line 30 between the first light shielding portion 10 and the translucent portion 20 is the contour line 30 of the color resist corresponding to one sub-pixel. A part of the light-transmitting part 20 in the second display area 12 is correspondingly filled with color resistors of different colors, and the part of the color resistors corresponds to the color resistors corresponding to the sub-pixels in the second display area 12; the other part of the light-transmitting part 20 is filled with high-transmittance color resists or not filled with color resists to improve the transmittance of the second display area 12. Optionally, the shape of the contour line 30 of the color resistor corresponding to each sub-pixel in the first display may be set to be the same as the shape of the contour line 30 of the color resistor corresponding to each sub-pixel in the second display area 12, which is favorable for simplifying mask (mask) layout during the manufacturing process of the first light shielding portion 10 and the light transmitting portion 20, reducing the difficulty of process preparation, and promoting the production efficiency of the display panel, and is also favorable for reducing the shape difference between the light transmitting portions of the first display area 11 and the second display area 12, and promoting the display uniformity of the display panel, thereby further promoting the overall display effect of the display panel 100.
In an alternative embodiment of the present invention, referring to fig. 2 and fig. 3, in the second display area 12, along the arrangement direction of the light-transmitting portions 20, the width of the first light-shielding portion 10 between any two adjacent light-transmitting portions 20 is D0; in the first display region 11, the width of the first light shielding portion 10 between any two adjacent light transmitting portions 20 along the arrangement direction of the light transmitting portions 20 is D1, where D0 > D1. When the contour line 30 between the first light shielding portion 10 and the translucent portions 20 is an arc line segment, the width D0 of the first light shielding portion 10 between any two adjacent translucent portions 20 in the arrangement direction of the translucent portions 20 indicates the minimum width of the first light shielding portion 10 between the two adjacent translucent portions 20. Fig. 2 and 3 illustrate only the width dimension of the first light shielding portion between the light transmitting portions 20 adjacently arranged in the row direction as an example, and the above-described dimensional relationship applies to the width dimension of the first light shielding portion between the light transmitting portions 20 adjacently arranged in the column direction as well.
In the present invention, the width D0 of the first light shielding portion 10 of the second display area 12 is set to be greater than the width D1 of the first light shielding portion 10 in the first display area 11, which is equivalent to increasing the width of the first light shielding portion 10 in the second display area 12 compared with the first display area 11, and the applicant finds, through research, that when the width of the first light shielding portion 10 in the second display area 12 is increased, it is beneficial to weaken the diffraction phenomenon of the second display area 12, and therefore, in an actual production process, the first light shielding portion 10 of the first display area 11 is manufactured according to a conventional size, and the width of the first light shielding portion 10 in the second display area 12 is appropriately increased, so as to be beneficial to improving the diffraction phenomenon of the second display area 12, and therefore, it is beneficial to improve the image quality of the second display area 12 at the picture taking stage, and improve the shooting effect. When a display panel in the prior art shoots a picture, the shot picture has an obvious star-shaped light spot phenomenon, and the star-shaped light spot forms a ghost phenomenon which is diffracted towards a plurality of directions. The applicant has found through research that when the width of the first light shielding portion 10 in the second display region 12 is appropriately increased, the width of ghost diffracted in multiple directions in the star-shaped light spot can be effectively reduced, so that the area of the star-shaped light spot can be reduced, and the diffraction phenomenon of the second display region can be favorably improved.
In an alternative embodiment of the invention, 5.5 μm D0 is 12 μm.
Generally, the width of the first light shielding part 10 in the first display region 11 is set to be 4.5 μm to 5 μm, when the present application increases the width of the first light shielding part 10 in the second display region 12, the width of the first light shielding part 10 in the second display region 12 may be set to be 5.5 μm ≦ D0 ≦ 12 μm, and when the width of the first light shielding part 10 in the second display region 12 is set to be less than 5.5 μm, the improvement of the diffraction phenomenon to the second display region 12 is insignificant; when the width of the first light shielding portion 10 in the second display area 12 is set to be larger than 12 μm, the space occupied by the first light shielding portion 10 in the second display area 12 is large, which is disadvantageous for achieving high transmittance setting of the second display area 12. In the present application, when the width of the first light shielding portion 10 in the second display area 12 is set between 5.5 μm and 12 μm, it is beneficial to improve the diffraction phenomenon of the second display area 12 and simultaneously beneficial to ensure the high transmittance of the second display area 12, so that the above-mentioned setting manner of the first light shielding portion 10 is further beneficial to improving the picture shooting quality of the second display area 12, that is, the shooting effect of the display panel 100 is also beneficial to improving. In addition, the applicant finds that when D0 is larger than or equal to 5.5 microns and smaller than or equal to 12 microns, the width of the star-shaped light spot is favorably reduced, the area of the star-shaped light spot is also favorably reduced, and the shooting image quality of the second display area is improved.
In an alternative embodiment of the present invention, fig. 5 is a BB cross-sectional view of the display panel 100 in fig. 1, please refer to fig. 5, the display panel 100 further includes a substrate P and a plurality of signal traces S disposed on one side of the substrate P, an orthographic projection of the plurality of signal traces S on the substrate P is located within an orthographic projection range of the first light-shielding portion 10 on the substrate S; in the first display area 11 and the second display area 12, at least a portion of the signal traces S include arc line segments.
It should be noted that fig. 5 shows a cross-sectional view of an array layer in the display panel 100, where the array layer includes a gate metal layer M1, a source/drain metal layer M2, and a touch routing layer M3, and the signal routing S mentioned in the present invention may be any signal routing located in the gate metal layer M1, the source/drain metal layer M2, or the touch routing layer M3.
In the present invention, the second display area 12 is used for implementing a display function in a display stage and for implementing a picture shooting function in a shooting stage, and therefore, the second display area 12 may include some signal traces, such as signal traces for transmitting display related signals, for example, gate lines, data signal lines, touch signal lines, voltage signal lines, and the like. The signal traces are usually metal traces, and in order to avoid the problem that the metal traces in the second display area 12 are visible, the orthographic projection of the signal traces in the second display area 12 on the substrate is located within the orthographic projection range of the first light shielding portion 10 on the substrate. In the invention, at least part of the signal wires in the second display area 12 are also set to be in the form of arc line segments, which is beneficial to avoiding the diffraction phenomenon possibly caused when all the signal wires in the second display area 12 are straight line segments, so that the setting mode that the signal wires comprise the arc line segments is also beneficial to improving the diffraction phenomenon of light passing through the substrate, thereby being beneficial to further improving the shooting image quality of the second display area 12.
Optionally, each signal trace in the second display area 12 is embodied as an arc line segment, so that the regular arrangement form of the signal traces in the second display area 12 is more favorably damaged, and therefore, the diffraction phenomenon of light passing through the substrate is more favorably improved, and the shooting image quality of the second display area 12 is further favorably improved.
In an optional embodiment of the present invention, in the first display area 11 and the second display area 12, the signal traces each include an arc line segment.
Specifically, when all signal traces in the first display area 11 and the second display area 12 are set to include arc line segments, the diffraction phenomenon of the second display area 12 is improved, and the shape difference of the signal traces in the first display area 11 and the second display area 12 is reduced, so that the phenomenon of uneven display of the first display area 11 and the second display area 12 is improved, and the overall display uniformity of the first display area 11 and the second display area 12 is improved.
In an alternative embodiment of the present invention, fig. 6 is a schematic structural diagram of a pixel electrode 40 in a first display area 11, and fig. 7 is a schematic structural diagram of a pixel electrode 40 in a second display area 12, where the first display area 11 includes a plurality of first sub-pixels, and the first sub-pixels include the first pixel electrode 40; the second display region 12 includes a plurality of second sub-pixels including second pixel electrodes 49;
one of the first pixel electrodes 40 includes a first sub-portion 41 and a second sub-portion 42 connected to each other, and the extending directions of the first sub-portion 41 and the second sub-portion 42 intersect; the second pixel electrode 49 includes only one third sub-portion 43 extending in the same direction.
Specifically, referring to fig. 6 and 7, the first pixel electrode 40 corresponding to the first sub-pixel in the first display region 11 includes a first sub-portion 41 and a second sub-portion 42 having different extending directions, the extending direction of the first sub-portion 41 is a direction F1, the extending direction of the second sub-portion 42 is a direction F2, and the directions F1 and F2 intersect with each other, that is, the sub-pixel in the first display region 11 is embodied as a dual-domain structure. The second pixel electrode 49 corresponding to the second sub-pixel in the second display area 12 includes the third sub-portion 43 extending along the same direction F3, that is, the sub-pixel in the second display area 12 is embodied in a single domain structure. In the prior art, due to the existence of diffraction problem, star-shaped light spots are formed in a shot picture by diffraction along a plurality of directions (at least diffraction along 6 different directions). The applicant finds, through research, that when the sub-pixels of the first display area 11 are set to be in a dual-domain structure, and the sub-pixels of the second display area 12 are set to be in a single-domain structure, it is beneficial to improve the ghost phenomenon of the star-shaped light spot in the horizontal direction in the prior art, and to reduce the diffraction direction of the light spot, for example, the light spot diffracted in 6 different directions can be improved to be the light spot diffracted only in 4 different directions. And the design scheme that the contour line 30 between the first light shielding part 10 and the light transmission part 20 is an arc line segment is combined, so that the spot size of the star-shaped spot can be reduced. Therefore, compared with the prior art, the diffraction phenomenon of the second display area 12 is greatly improved, and the shooting image quality of the second display area 12 is favorably improved.
In an alternative embodiment of the present invention, fig. 8 is a CC cross-sectional view of the display panel 100 in fig. 1, fig. 9 is a top view of the second light-shielding portion 50 disposed on the second substrate 102, see fig. 8 and 9, the display panel 100 includes a first substrate 101 and a second substrate 102 disposed oppositely, and the first light-shielding portion 10 is located on the first substrate 101; the display panel 100 further includes a second light-shielding portion 50 on the second substrate 102, wherein the transmittance of the second light-shielding portion 50 is greater than that of the first light-shielding portion 10; the orthographic projection of the second light shielding part 50 on the light emitting surface of the display panel 100 is overlapped with the orthographic projection of the first light shielding part 10 on the light emitting surface of the display panel 100;
at least in the second display region 12, the width of the second light shielding portion 50 between any two adjacent light transmitting portions 20 along the arrangement direction of the light transmitting portions 20 is D2; the width of the first light-shielding portion 10 between any two adjacent light-transmitting portions 20 in the arrangement direction of the light-transmitting portions 20 is D0, where D2 > D0.
It should be noted that fig. 8 only shows the relative positional relationship between the first substrate 101 and the second substrate 102, and the positions of the first light shielding portion 10 and the second light shielding portion 50 in the display panel 100, and does not represent the actual film layer structures of the first substrate 101 and the second substrate 102.
Specifically, please refer to fig. 8 and fig. 9, the display panel 100 of the present invention includes a first substrate 101 and a second substrate 102 that are disposed opposite to each other, and optionally, the first substrate 101 is a color filter substrate, and the second substrate 102 is an array substrate. The first light shielding portion 10 in the present invention may be embodied as a black matrix disposed on the first substrate 101. Alternatively, the second light shielding portion 50 in the present invention may be disposed on the side of the array layer close to the substrate in the second substrate 102.
In the present invention, the second light-shielding portion 50 is introduced on the second substrate 102, and the transmittance of the second light-shielding portion 50 is greater than that of the first light-shielding portion 10, and optionally, the second light-shielding portion 50 can be made of the same material as the active layer on the array substrate, so that the second light-shielding portion 50 has certain light-shielding performance and certain light transmittance, thereby avoiding affecting the transmittance of the second substrate 102. The second light shielding portions 50 are introduced in the second substrate 102 in the present invention, and alternatively, the second light shielding portions 50 may be provided in the same shape as the first light shielding portions 10, for example, each provided in a grid shape. At least in the second display region 12, the width D2 of the second light shielding portion 50 between the adjacent two light-transmitting portions 20 is larger than the width of the first light shielding portion 10 between the adjacent two light-transmitting portions 20. That is, in the second light shielding portion 50 introduced in the second substrate 102, the width of the second light shielding portion 12 is larger than the width of the first light shielding portion 10 in the second display region 12, so that the widths of the first light shielding portions 10 in the first display region 11 and the second display region 12 can be set to be the same without changing the width of the first light shielding portion 10 in the second display region 12, which is beneficial to simplifying the manufacturing process of the first light shielding portion 10 and improving the production efficiency of the display panel 100. In the second display area 12, when the size of the first shading part 10 is kept the same as the size of the first shading part 10 in the first display area 11, and the size of the second shading part 50 is increased, the diffraction phenomenon of the second display area 12 is also favorably improved, so that the arrangement mode is favorable for simplifying the manufacturing process of the first shading part 10 and improving the shooting image quality of the second display area 12.
In an alternative embodiment of the invention, 5.5 μm D2 is 12 μm.
When the first light-shielding portions 10 of the first display region 11 and the second display region 12 adopt the same width specification, the width of the first light-shielding portion 10 is set to be 4.5 μm to 5 μm, when the second light-shielding portion 50 is introduced in the present application and the width of the second light-shielding portion 50 is made larger than the width of the first light-shielding portion 10, the width of the second light-shielding portion 50 in the second display region 12 can be set to be 5.5 μm or more and D0 or more and 12 μm or less, and when the width of the second light-shielding portion 50 in the second display region 12 is set to be less than 5.5 μm, the improvement of diffraction phenomenon to the second display region 12 is not significant; when the width of the second light shielding portion 50 in the second display area 12 is set to be larger than 12 μm, the space occupied by the second light shielding portion 50 in the second display area 12 is large, which is disadvantageous for achieving high transmittance setting of the second display area 12. When the width of the second shading part 50 in the second display area 12 is set between 5.5 μm and 12 μm, the present application is favorable for improving the diffraction phenomenon of the second display area 12, simultaneously is favorable for ensuring the high transmittance of the second display area 12, and simplifies the manufacturing process of the first shading part 10, so that the above-mentioned setting mode of the second shading part 50 is more favorable for improving the picture shooting quality of the second display area 12, that is, is favorable for improving the shooting effect of the display panel 100.
Note that, when the width of the second light shielding portion 50 in the second display region 12 is widened to be larger than the width of the first light shielding portion 10 in the second display region 12, a part of the second light shielding portion 50 in the first display region 11 may be widened as appropriate. For example, the width of the second light-shielding portion 50 between two adjacent light-transmitting portions 20 disposed in the first display region 11 and the second display region 12 is greater than the width of the first light-shielding portion 10 between two adjacent light-transmitting portions 20, and the width of the second light-shielding portion 50 can be manufactured with uniform specifications, which is advantageous for simplifying the manufacturing process of the second light-shielding portion 50. Of course, in addition to the second display area 12, the width of the second light-shielding portion 50 between two adjacent light-transmitting portions 20 in the partial area of the first display area 11 close to the second display area 12 may be widened, so that the width of the second light-shielding portion 50 between two adjacent light-transmitting portions 20 in the boundary area between the second display area 12 and the first display area 11 is gradually changed, for example, the width of the second light-shielding portion 50 in the boundary area between the second display area 12 and the first display area 11 is gradually decreased in a direction from the second display area 12 to the first display area 11, thereby being beneficial to avoiding a problem that the boundary area between the first display area 11 and the second display area 12 has a significant display difference due to a significant change in the size of the second light-shielding portion 50, and being beneficial to improving the display uniformity of the display panel 100.
In an alternative embodiment of the present invention, referring to fig. 3 and 4, the contour line 30 between the first light shielding portion 10 and the light transmitting portion 20 is circular.
Specifically, in the present invention, when the shape of the contour line 30 between the first light shielding portion 10 and the translucent portion 20 is set to be circular, it is equivalent to setting the shape of the color resists corresponding to the sub-pixels in the first display region 11 and the second display region 12 to be circular, and setting the shape of the translucent portion 20 filled with a high transmittance color resist or not filled with a color resist in the second display region 12 to be circular, which is beneficial to improving the diffraction phenomenon of the second display region 12 and improving the image quality of the second display region 12, and is beneficial to reducing the shape difference of the sub-pixels in the first display region 11 and the second display region 12, so as to improve the display uniformity of the first display region 11 and the second display region 12.
In an alternative embodiment of the present invention, fig. 10 is a schematic structural view illustrating that the contour lines 30 between the first light shielding portion 10 and the light transmitting portion 20 are both arcs in the present invention, fig. 11 is another schematic structural view illustrating that the contour lines 30 between the first light shielding portion 10 and the light transmitting portion 20 are both arcs in the present invention, and the contour lines 30 corresponding to the same light transmitting portion 20 include two first contour lines 31 disposed opposite to each other along a first direction and two second contour lines 32 disposed opposite to each other along a second direction, where the first direction intersects with the second direction; the two first contour lines 31 have the same shape and/or the two second contour lines 32 have the same shape.
When the contour line 30 between the first light shielding portion 10 and the light-transmitting portion 20 is set to include a curved line segment, the curved line segment may also be set in the form as shown in fig. 10 and 11. In this embodiment, the contour lines 30 corresponding to the same light-transmitting portion 20 are entirely embodied in a quadrilateral structure including 4 curved edges, that is, the contour lines 30 include two first contour lines 31 oppositely arranged in a first direction and two second contour lines 32 oppositely arranged in a second direction, and the first direction and the second direction intersect. In some embodiments, the two first contour lines 31 may be configured to have the same shape, for example, see fig. 10, so as to facilitate the fabrication of the light-transmitting portion 20. In some embodiments, the shapes of the two second contour lines 32 may be the same, for example, see fig. 11, which is also advantageous for simplifying the manufacturing of the light-transmitting portion 20. Of course, in some other embodiments of the present application, the shapes of the two first contour lines may be set to be the same, and the shapes of the two second contour lines may also be set to be the same, so as to further facilitate the manufacturing of the light-transmitting portion 20 and improve the manufacturing efficiency of the display panel 100.
In an alternative embodiment of the present invention, please refer to fig. 10-13, fig. 12 shows another structural schematic diagram of the present invention in which the contour lines 30 between the first light shielding portion 10 and the light transmitting portion 20 are both arcs, and fig. 13 shows another structural schematic diagram of the present invention in which the contour lines 30 between the first light shielding portion 10 and the light transmitting portion 20 are both arcs; the first contour line 31 and/or the second contour line 32 are wavy lines including at least one peak and at least one valley, wherein the first contour line 31 and the second contour line 32 in fig. 10 both include only one peak or valley, the first contour line 31 in fig. 11 includes one peak or valley, and the second contour line 32 includes a plurality of peaks and valleys; both the first contour line 31 and the second contour line 32 in fig. 12 comprise a plurality of peaks and valleys; the first contour 31 in fig. 13 comprises only peaks and the second contour 32 comprises a plurality of peaks and valleys. The first contour 31 and/or the second contour of the present invention may be embodied as a wavy line including at least one peak or at least one valley, and the wavy line is designed to facilitate manufacturing and improve diffraction of the second display area 12 in the display panel 100.
In an alternative embodiment of the present invention, referring to fig. 10 or 11, the first contour 31 and/or the second contour 32 are arcs including only one peak or only one valley.
Fig. 10 shows the case where both the first contour line 31 and the second contour line 32 comprise arcs of only one peak or only one valley, and fig. 11 shows the case where the first contour line 31 comprises only one peak or valley. When the light-transmitting portion 20 is formed on the first light-shielding portion 10, the contour line 30 including only one peak or only one valley is easy to manufacture, and the form of the contour line 30 with such a structure is favorable for improving the diffraction phenomenon of the second display region 12, and is also favorable for simplifying the manufacturing difficulty of forming the light-transmitting portion 20 on the first light-shielding portion 10, thereby being favorable for simplifying the manufacturing process of the light-transmitting portion 20 and improving the production efficiency of the display panel 100.
In some optional embodiments of the present invention, the first contour line 31 and the second contour line 32 may further be embodied as structures as shown in fig. 12, in this embodiment, both the first contour line 31 and the second contour line 32 include a plurality of peak and valley structures, and the same first contour line 31 and the same second contour line 32 include a plurality of peaks and valleys, which are different from a straight line segment, and are more beneficial to improving the diffraction phenomenon of the second display area 12, and therefore are more beneficial to improving the shooting image quality of the second display area 12.
In an alternative embodiment of the present invention, referring to fig. 10, the same light-transmitting portion 20 includes four vertexes, in the same light-transmitting portion 20, a connection line between two vertexes along the first direction is a first straight line X1, and a connection line between two vertexes adjacent along the second direction is a second straight line X2;
along the second direction, the distance between the wave crest or the wave trough in the first contour line 31 and the first straight line X1 corresponding to the first contour line 31 is H1; along the first direction, the distance between the wave crest or the wave trough in the second contour line 32 and the second straight line X2 corresponding to the second contour line 32 is H2, wherein H1 is greater than or equal to 2 μm and less than or equal to 5 μm, and H2 is greater than or equal to 2 μm and less than or equal to 5 μm.
Specifically, the present invention defines the degree of curvature of the arc structure constituting the first and second contour lines 31 and 32 with reference to a first straight line X1 formed by connecting two vertexes in the first direction and a second straight line X2 formed by connecting two vertexes in the second direction with respect to the same light-transmitting portion 20. When the distance H1 between the peak or valley in the first contour line 31 and the first straight line X1 in the second direction is less than 2 μm, or the distance H2 between the peak or valley in the second contour line 32 and the second straight line X2 in the first direction is less than 2 μm, the degree of curvature of the arc structure is smaller, closer to the straight line, and the improvement degree of diffraction in the second display area 12 is not significant. When the distance H1 between the peak or the trough in the first contour line 31 and the first straight line X2 is greater than 5 μm in the second direction, or when the distance H2 between the peak or the trough in the second contour line 32 and the second straight line X2 is greater than 5 μm in the first direction, the curvature of the arc structure is large, and when the color resistance for display is filled in the hollow portion 20, a certain influence may be exerted on the display. Therefore, in the invention, H1 is not less than 2 μm and not more than 5 μm, and H2 is not less than 2 μm and not more than 5 μm, so that the degree of curvature of the contour line 30 forming the hollow portion 20 is moderate, which is not only beneficial to effectively improving the diffraction phenomenon of the second display area 12, but also beneficial to ensuring the display effect without influencing the normal display of the second display area 12.
Based on the same inventive concept, the present application further provides a display device, and fig. 14 is a schematic diagram of the display device provided in the embodiment of the present application, where the display device 200 includes the display panel 100 and the camera 201 provided in any one of the above embodiments of the present application; the orthographic projection of the camera 201 on the light emitting surface of the display panel is located in the second display area 12. In this application, when the second display area set up the pitch arc structure, can reduce the diffraction degree of second display area greatly to weaken the influence of diffraction phenomenon to the picture that the camera was shot, therefore be favorable to promoting the definition of shooing the picture, promote and shoot the picture quality.
It should be noted that, for the embodiments of the display device 200 provided in the embodiments of the present application, reference may be made to the embodiments of the display panel 100, and repeated descriptions are omitted. The display device 200 provided by the present application may be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In summary, the display panel and the display device provided by the invention at least achieve the following beneficial effects:
in the display panel and the display device provided by the application, a second display area is arranged, the transmittance of the second display area is greater than that of the first display area, and the second display area comprises a first shading part and a plurality of light transmission parts. Optionally, a part of the light-transmitting portions is filled with a red color resistor, a green color resistor or a blue color resistor, and in a display state, the light-transmitting portions filled with the red, green and blue color resistors in the second display region can perform a display function. Optionally, a white color resist or no color resist is filled in the other part of the light-transmitting portion, and when the camera is arranged in the region corresponding to the second display region, the light-transmitting portion filled with the white color resist or not filled with the color resist in the second display region is used as the light-transmitting region, so that the camera can realize a picture shooting function. Especially, at least in the second display area, the contour line between the first shading part and at least part of the light transmission part comprises an arc line segment, and when the arc line segment is arranged in the second display area, compared with a straight line segment, the diffraction degree of the second display area can be greatly reduced, so that the influence of the diffraction phenomenon on the picture quality shot by the second display area is reduced, and the shooting image quality is improved.
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 (15)
1. A display panel is characterized by comprising a display area and a non-display area, wherein the display area comprises a first display area and a second display area, and the transmittance of the second display area is greater than that of the first display area;
the display area comprises a first light shielding part and a plurality of light transmitting parts, and the orthographic projection of the light transmitting parts on the light emitting surface of the display panel is positioned in the outer contour range of the orthographic projection of the first light shielding part on the light emitting surface;
at least in the second display area, the contour line between the first light shielding part and at least part of the light transmission part comprises an arc line segment;
the first display region includes a plurality of first sub-pixels including first pixel electrodes; the second display area comprises a plurality of second sub-pixels, and the second sub-pixels comprise second pixel electrodes;
one of the first pixel electrodes includes a first sub-portion and a second sub-portion connected to each other, and extending directions of the first sub-portion and the second sub-portion intersect; the second pixel electrode includes only one third sub-portion extending in the same direction.
2. A display panel as claimed in claim 1 wherein, in the first display region, a contour line between the first light-shielding portion and at least part of the light-transmitting portion comprises a segment of an arc.
3. The display panel according to claim 1, wherein a contour line between the first light shielding portion and the light transmitting portion in the second display region and the first display region is an arc line.
4. The display panel according to claim 1, wherein in the second display region, a width of the first light shielding portion between any adjacent two of the light-transmitting portions in an arrangement direction of the light-transmitting portions is D0; in the first display region, the width of the first light shielding part between any two adjacent light transmission parts along the arrangement direction of the light transmission parts is D1, wherein D0 is larger than D1.
5. The display panel of claim 4, wherein D0 is 5.5 μm or more and 12 μm or less.
6. The display panel according to claim 1, further comprising a substrate and a plurality of signal traces disposed on one side of the substrate, wherein an orthographic projection of the signal traces on the substrate is within an orthographic projection range of the first light shielding portion on the substrate; at least part of the signal routing comprises an arc line segment in the first display area and the second display area.
7. The display panel according to claim 6, wherein the signal traces each comprise an arc line segment in the first display area and the second display area.
8. The display panel according to claim 1, wherein the display panel comprises a first substrate and a second substrate which are oppositely arranged, and the first light shielding portion is located on the first substrate;
the display panel also comprises a second shading part positioned on the second substrate, and the transmittance of the second shading part is greater than that of the first shading part; the orthographic projection of the second light shielding part on the light emitting surface of the display panel is overlapped with the orthographic projection of the first light shielding part on the light emitting surface of the display panel;
at least in the second display region, the width of the second light-shielding part between any two adjacent light-transmitting parts along the arrangement direction of the light-transmitting parts is D2; the width of the first light shielding part between any two adjacent light transmission parts along the arrangement direction of the light transmission parts is D0, wherein D2 is larger than D0.
9. The display panel according to claim 8, wherein D2 is 5.5 μm. Ltoreq. D2. Ltoreq.12 μm.
10. The display panel according to claim 1, wherein the shape of the contour line between the first light shielding portion and the light transmitting portion is a circle.
11. The display panel according to claim 1, wherein the contour lines corresponding to the same light-transmitting portion include two first contour lines disposed opposite to each other in a first direction and two second contour lines disposed opposite to each other in a second direction, the first direction and the second direction intersecting each other;
the shapes of the two first contour lines are the same, and/or the shapes of the two second contour lines are the same.
12. A display panel as claimed in claim 11 characterized in that the first contour line and/or the second contour line is a wavy line comprising at least one crest and at least one trough.
13. A display panel as claimed in claim 11 characterized in that the first contour line and/or the second contour line is an arc comprising only one peak or only one valley.
14. The display panel according to claim 12 or 13, wherein the same light-transmitting portion includes four vertexes, and in the same light-transmitting portion, a connection line between two vertexes in the first direction is a first straight line, and a connection line between two vertexes adjacent in the second direction is a second straight line;
along the second direction, the distance between the wave crest or the wave trough in the first contour line and the first straight line corresponding to the first contour line is H1; and along the first direction, the distance between the wave crest or the wave trough in the second contour line and the second straight line corresponding to the second contour line is H2, wherein H1 is more than or equal to 2 mu m and less than or equal to 5 mu m, and H2 is more than or equal to 2 mu m and less than or equal to 5 mu m.
15. A display device comprising the display panel according to any one of claims 1 to 14 and a camera;
and the orthographic projection of the camera on the light-emitting surface of the display panel is positioned in the second display area.
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| CN115524880A (en) * | 2021-06-24 | 2022-12-27 | 群创光电股份有限公司 | Display device |
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| CN204651324U (en) * | 2015-06-12 | 2015-09-16 | 昆山国显光电有限公司 | Organic light emitting diode display |
| CN109728048B (en) * | 2018-12-29 | 2021-03-02 | 武汉天马微电子有限公司 | Display panel and display device |
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