CN214474940U - Display panel and display device - Google Patents

Abstract

The utility model discloses a display panel and display device, display panel include display substrate, and it has first display area, at least part around the second display area that first display area set up and with the adjacent non-display area of first display area, first display area be provided with the adjacent and a plurality of edge sub-pixels of interval setting of non-display area. The display substrate further comprises a shielding piece, the shielding piece is arranged on the light emitting side of the display substrate and corresponds to the edge sub-pixel distribution areas, the orthographic projection of the shielding piece on the display substrate at least covers a part of the edge sub-pixels, and the orthographic projection of the shielding piece on the display substrate and the contour line of the first display interval are located in the interval between the edge sub-pixels. The shielding piece shields partial edge sub-pixels, so that the problem of saw teeth at the edge of a non-display area is solved, meanwhile, the shielding position of the shielding piece is controlled, the brightness of the edge sub-pixel distribution area is controllable, and the display effect of the display panel is improved.

Description

Display panel and display device

Technical Field

The utility model belongs to the technical field of the electronic product, especially, relate to a display panel and display device.

Background

With the diversified development of the new display technology, the OLED (Organic Light Emitting Diode) gradually becomes the mainstream flat panel display technology, and on the basis, the under-screen structured Light technology is introduced to realize the functions of face recognition and the like. To ensure the realization of the under-screen structured light technology, the corresponding region on the display panel is set to low PPI (pixel density) to improve transparency. However, the integration of devices such as cameras is often realized by forming non-display areas such as through holes or blind holes on the current display panel, and if the non-display area is arranged in the middle of the low pixel density area, the problem of jagged stripes at the edge of the non-display area will be caused, which affects the display effect of the display panel.

Therefore, a new display panel and a new display device are needed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a display panel and display device, the sawtooth that has reduced the edge of non-display area and lead to because of low pixel density is felt, has guaranteed the homogeneity of non-display area edge luminance simultaneously, improves display panel's display effect.

An embodiment of the utility model provides an aspect provides a display panel, include: the display device comprises a display substrate, a first display area, a second display area and a non-display area, wherein the second display area is at least partially arranged around the first display area, the non-display area is adjacent to the first display area, and the first display area is provided with a plurality of edge sub-pixels which are adjacent to the non-display area and are arranged at intervals; the shielding piece is arranged on the light emitting side of the display substrate and corresponds to the edge sub-pixel distribution areas, the orthographic projection of the shielding piece on the display substrate at least covers part of the edge sub-pixels, and the contour line of the orthographic projection first display interval of the display substrate is located in the interval between the edge sub-pixels.

According to one aspect of the present invention, each of the edge sub-pixels includes an anode, and anodes of at least two of the edge sub-pixels of the same color are electrically connected to each other to form a merged sub-pixel unit; the orthographic projection of the shielding piece on the display substrate at least covers part of the edge sub-pixels in the combined sub-pixel unit.

According to an aspect of the present invention, the display substrate includes an array layer, the array layer includes a plurality of pixel circuits, each of which the merged sub-pixel unit is connected to a different one of the pixel circuits.

According to the utility model discloses an aspect still includes the touch-control layer, the touch-control layer is located display substrate's light-emitting side, just the shielding piece with the touch-control layer is with layer setting.

According to an aspect of the present invention, the touch layer includes a touch electrode layer, an insulating layer, and a bridging layer stacked in a direction perpendicular to a plane of the display substrate, and the shielding member and the bridging layer are disposed on the same layer; preferably, the bridging connection layer comprises at least one of an aluminum metal layer and a titanium aluminum titanium composite metal layer.

According to an aspect of the present invention, the first display area surrounds the non-display area, and at least one side of the edge profile of the non-display area is a curved side.

According to the utility model discloses an aspect, non-display area is equipped with through-hole or blind hole, through-hole or blind hole are circular, in the oval.

According to an aspect of the utility model, a plurality of heterochrosis merge sub-pixel unit and form edge pixel group, each edge pixel group is in orthographic projection on the display substrate is the rectangle, and is the ranks and arranges.

According to an aspect of the present invention, the edge pixel group includes a protruding portion protruding toward the non-display area, and the front projection of the shielding member on the display substrate at least partially covers the edge sub-pixels in the protruding portion.

The embodiment of the utility model provides an on the other hand still provides a display device, include: a display panel, which is the display panel in the above embodiment; and the optical element is arranged corresponding to the first display area of the display panel.

Compared with the prior art, the embodiment of the utility model provides a display panel, including the display substrate, it has first display area, at least partially centers on the second display area that first display area set up, and the pixel density of first display area is less than the pixel density of second display area, guarantees the realization of screen structured light technique through setting up first display area to low pixel density promptly. The display substrate further comprises a non-display area adjacent to the first display area, the non-display area is provided with through holes or blind holes integrating functions of a camera and the like, and the first display area is provided with a plurality of edge sub-pixels adjacent to the non-display area and arranged at intervals. In order to reduce the sawtooth feeling caused by low pixel density near the non-display area, the display panel further comprises a shielding piece, the shielding piece is arranged on the light-emitting side of the display substrate and corresponds to the edge sub-pixel distribution areas, the orthographic projection of the shielding piece on the display substrate at least covers part of the edge sub-pixels, and the contour line of the shielding piece between the orthographic projection of the display substrate and the first display area is positioned in the interval between the edge sub-pixels. The shielding piece shields part of the edge sub-pixels, so that the light quantity of the light emitted by the edge sub-pixels transmitted to the light emitting side of the display substrate is small, the light emitting brightness of the display area corresponding to the edge sub-pixels is reduced, and the problem of saw teeth at the edge of the non-display area is solved. Meanwhile, the orthographic projection of the shielding piece on the display substrate and the contour line of the first display interval are positioned in the interval between each edge sub-pixel, namely the shielding piece does not cover one part of each edge sub-pixel but covers the whole single edge sub-pixel, so that when the alignment deviation occurs in the preparation process of the display panel, the brightness of the edge sub-pixel distribution area can still be controlled, the uniformity of the brightness at the edge of the non-display area is ensured, and the display effect of the display panel is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic diagram of a pixel structure at the edge of a non-display area according to an embodiment of the present invention;

fig. 3 is a schematic view of a pixel structure of a non-display area edge provided with a shielding member according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a display panel taken along the line C-C of FIG. 1;

FIG. 5 is a cross-sectional view of another display panel of FIG. 1 taken along the direction C-C;

fig. 6 is a top view of a display panel according to another embodiment of the present invention.

In the drawings:

1-a display substrate; 2-a shield; 3-an array layer; 4-an anode; 5-a light-emitting layer; 6-a cathode; 7-a touch layer; 71-an electrode layer; 72-an insulating layer; 73-bridging the tie layer; p-edge sub-pixels; QA-edge pixel renting; AA 1-first display area; AA 2-second display area; NA-non-display area.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

For better understanding of the present invention, the following detailed description is made with reference to fig. 1 to 6 for a display panel and a display device according to an embodiment of the present invention.

Referring to fig. 1 to 6, an embodiment of the present invention provides a display panel, including: the display substrate 1 includes a first display area AA1, a second display area AA2 at least partially surrounding the first display area AA1, and a non-display area NA adjacent to the first display area AA1, wherein the first display area AA1 is provided with a plurality of edge subpixels P adjacent to and spaced apart from the non-display area NA. The shielding piece 2 is arranged on the light outgoing side of the display substrate 1 and corresponds to the plurality of edge sub-pixel distribution areas, the orthographic projection of the shielding piece 2 on the display substrate 1 at least covers a part of the edge sub-pixels P, and the contour line between the orthographic projection of the shielding piece 2 on the display substrate 1 and the first display area AA1 is positioned in the interval between the edge sub-pixels P.

The embodiment of the utility model provides a display panel includes display substrate 1 and shielding piece 2, shielding piece 2 corresponds the setting with a plurality of edge sub pixel P distribution area in display substrate 1's light-emitting side, and shielding piece 2 covers partial edge sub pixel P at least in the orthographic projection on display substrate, and shielding piece 2 is located the interval between each edge sub pixel P in the outline line between orthographic projection and the first display area AA1 on display substrate 1. Part of the edge sub-pixels P are shielded by the shielding piece 2, so that the light quantity transmitted to the light-emitting side of the display substrate by the light emitted by the edge sub-pixels P is smaller, the light-emitting brightness of the display area corresponding to the edge sub-pixels P is reduced, and the problem of sawtooth at the edge of the non-display area NA is solved. Meanwhile, the contour line between the orthographic projection of the shielding piece 2 on the display substrate 1 and the first display area AA1 is positioned in the interval between each edge sub-pixel P, namely the shielding piece 2 does not cover a part of each edge sub-pixel P but covers the whole single edge sub-pixel P, so that when the alignment deviation occurs in the preparation process of the display panel, the brightness of the distribution area of the edge sub-pixel P can be controlled, the uniformity of the brightness at the edge of the non-display area NA is ensured, and the display effect of the display panel is improved.

Specifically, referring to fig. 1 to 3, the display panel according to the embodiment of the present invention includes a display substrate 1 having a first display area AA1 and a second display area AA2 at least partially surrounding the first display area AA1, and the first display area AA1 may be set to have a low pixel density to ensure the realization of the under-screen structured light technology. The display substrate 1 further includes a non-display area NA adjacent to the first display area AA1, the non-display area NA is a through hole or a blind hole formed for integrating functions of a camera, and the first display area AA1 is provided with a plurality of edge sub-pixels P adjacent to and spaced from the non-display area NA. It should be noted that the edge sub-pixel P is located in the edge region of the non-display area NA and adjacent to the first display area AA1, due to the limitation of the shape of the edge sub-pixel P itself, the adjacent edge sub-pixels P will exhibit a significant concave-convex line near the outer contour of the non-display area NA, which is not matched with the edge contour line of the non-display area NA. Therefore, if the non-display area NA is located in the low pixel density area, the edge area of the non-display area NA will exhibit a significant jaggy phenomenon when displaying the image.

Further, although the display panel has a certain corresponding precision requirement in the manufacturing process, the shielding element 2 is still inevitably misaligned with the edge sub-pixels P in the actual manufacturing process, and at this time, if the shielding element 2 is only arranged according to the shape of the outer contour of the non-display area NA, the orthographic projection of the shielding element 2 on the display substrate 1 covers a part of some edge sub-pixels P, so that when the misalignment occurs in the manufacturing process, the coverage area of the shielding element 2 on the edge sub-pixels P cannot be controlled, and the brightness value of the edge sub-pixels P is inconsistent with the expected brightness value. When the orthographic projection of the shielding piece 2 on the display substrate 1 and the contour line of the first display interval are positioned in the interval between each edge sub-pixel P, even if the alignment deviation occurs in the preparation process, the deviation amount is not enough to enable the shielding piece 2 to cover a part of a certain edge sub-pixel P, so that the brightness of the edge sub-pixel P is completely controlled, the uniformity of the brightness at the edge of the non-display area NA can be ensured, and the display effect of the display panel is ensured.

The light-shielding member 2 may be an opaque layer located on the light-emitting side of the display substrate 1 and corresponding to the edge sub-pixel P distribution region, and the opaque layer may be a metal layer or a black ink film. Optionally, the misalignment between the light shielding member 2 and the edge sub-pixel P needs to be less than 10 μm, and preferably less than 5 μm, so as to not affect the image display of the display substrate 1 while ensuring the shielding effect on the edge sub-pixel P.

In order to improve the transparency of the first display area AA1, the pixel density of the first display area AA1 needs to be reduced by a pixel combination method. The pixel merging method is to merge a plurality of pixels into a single pixel or a pixel cluster, i.e. the total number of pixels is reduced by combining a plurality of edge sub-pixels P of the same color into a larger merging sub-pixel unit, thereby reducing the pixel density.

To further illustrate the specific structure of the merged sub-pixel unit, please refer to fig. 4 and 5, in an embodiment of the present invention, each edge sub-pixel P includes an anode 4, and the anodes 4 of at least two edge sub-pixels with the same color are electrically connected to form the merged sub-pixel unit; the orthographic projection of the shielding member 2 on the display substrate 1 covers at least a part of the edge sub-pixels P in the merged sub-pixel unit. Specifically, the edge sub-pixels P can be divided into red sub-pixels, green sub-pixels and blue sub-pixels, and a plurality of combined sub-pixel units connected with the anodes can be simultaneously turned on or off by adopting a mode of synchronously driving a plurality of same-color edge sub-pixels P. Therefore, in the actual display process, the edge subpixels P in each merging subpixel unit can be regarded as a group to be driven synchronously. The shielding member 2 can specifically shield part of the edge sub-pixels P in the merged sub-pixel unit, and part of the edge sub-pixels P are not shielded, so that the whole merged sub-pixel unit cannot be shielded, cannot emit light, and the display effect is not affected. Optionally, each edge sub-pixel P includes an anode 4, a light emitting layer 5, and a cathode 6, which are stacked, and the anode 4 and the light emitting layer 5 are disposed in the opening of the pixel defining layer to define the pixel aperture ratio.

In order to realize the synchronous driving of the edge sub-pixels P of the same color in the merged sub-pixel unit, referring to fig. 5, the display substrate 1 includes an array layer 3, the array layer 3 includes a plurality of pixel circuits, and each merged sub-pixel unit is connected to a different pixel circuit. It can be understood that each merging sub-pixel unit is respectively connected to different pixel circuits, that is, each merging sub-pixel unit is controlled to emit light by different pixel circuits, and the pixel circuits can control a plurality of edge sub-pixels P in one merging sub-pixel unit to emit light simultaneously or to be turned off simultaneously.

In some optional embodiments, referring to fig. 4 and fig. 5, the shielding element 2 may be separately disposed on the light emitting side of the non-display area NA to form a black ink layer, or disposed on the same layer as the touch layer 7.

Specifically, please refer to fig. 5 for simplifying the manufacturing process of the display panel, the display panel in the embodiment of the present invention further includes a touch layer 7, the touch layer 7 is disposed on the light emitting side of the display substrate 1, and the shielding member 2 and the touch layer 7 are disposed on the same layer. That is, the shielding member 2 and the touch layer 7 can be formed in the same process, so that the process for manufacturing the shielding member 2 is not additionally added while the sawtooth at the edge of the non-display area NA of the display panel is improved and the brightness uniformity is ensured, the process for manufacturing the shielding member 2 is avoided being added, and the production cost is reduced. Optionally, the touch layer 7 is disposed on a side of the cathode 6 away from the cathode 6, and an encapsulation layer is disposed between the touch layer 7 and the cathode 6 to prevent water vapor from entering the display substrate.

Specifically, the touch layer 7 includes a touch electrode layer 71, an insulating layer 72, and a bridging layer 73 stacked in a direction perpendicular to the plane of the display substrate 1, and the barrier 2 and the bridging layer 73 are disposed on the same layer. The touch electrode layer 71 includes a plurality of touch electrodes insulated from each other, and a plurality of via holes are formed in the insulating layer 72 at intervals. The bridge-crossing connection layer 73 is connected to the adjacent touch electrodes through via holes.

Optionally, the bridge-spanning connection layer 73 includes at least one of an aluminum metal layer and a titanium-aluminum-titanium composite metal layer, and the shielding member 2 is set to be a metal layer prepared by the same process as the bridge-spanning connection layer 73, and the shielding member 2 is set on the same layer as the bridge-spanning connection layer 73 to shield the edge sub-pixels at the edge of the non-display area NA.

In some alternative embodiments, referring to fig. 2, a plurality of different color sub-pixel units are combined to form edge pixel groups QA, and the orthographic projection of each edge pixel group QA on the display substrate 1 is rectangular and arranged in rows and columns. By providing the edge pixel group QA in a rectangular structure, the close arrangement of the respective edge sub-pixel units P is facilitated. However, when the edge pixel group QA forms a rectangular structure, if the outer profile of the non-display area NA is a curve, the edge pixel group QA inevitably protrudes toward the non-display area NA to form an obvious concave-convex line, thereby causing a problem of saw-tooth stripes at the edge of the non-display area NA.

Further, referring to fig. 3, the edge pixel group QA includes a protruding portion protruding toward the non-display area NA, and the orthographic projection of the shielding member 2 on the display substrate 1 at least partially covers the edge sub-pixels P in the protruding portion. By arranging the shielding member 2 on the light emitting side of the display substrate 1 and covering the edge sub-pixels P in the protruding portion, light emitted by the edge sub-pixels P in the protruding portion cannot be transmitted to the light emitting surface of the display substrate 1 or the amount of light emitted by the edge sub-pixels P in the protruding portion transmitted to the display substrate 1 is small, so that the light emitting brightness of the display area corresponding to the edge sub-pixels P is reduced, and the image display at the edge of the non-display area NA is ensured.

Because the image display at the edge of the non-display area NA can be controlled by the shape of the shielding member 2, that is, the edge sub-pixels P in the edge pixel group QA that needs to be shielded can be selected by setting the shape of the shielding member 2, when the outer contour of the non-display area NA is a curve, the outer contour of the non-display area NA can be attached as much as possible by reasonably setting the shape of the shielding member 2 on the premise of ensuring that the contour line of the orthographic projection of the shielding member 2 on the display substrate 1 and the first display interval is located in the interval between the edge sub-pixels P, so as to realize the smooth transition of the edge area of the non-display area NA.

In some alternative embodiments, referring to fig. 1 and 6, the first display area AA1 is disposed around the non-display area NA, and at least one side of an edge contour of the non-display area NA is a curved side. In the actual manufacturing process of the display panel, the non-display area NA may be disposed at different positions on the display substrate 1 for different functions and appearance requirements, for example, the non-display area NA is disposed at the upper side of the display panel for disposing devices such as a fingerprint recognition device, a face recognition device or an under-screen camera, or the non-display area NA is disposed at a corner position of the display panel for arranging wires inside the display panel. When the non-display area NA is located in any area of the display substrate 1, the shielding member 2 can be covered on the edge area of the non-display area NA, so as to reduce the jaggy feeling of the edge of the non-display area NA due to the low pixel density of the first display area AA1 and ensure the uniformity of the brightness thereof.

Further, the non-display area NA is provided with a through hole or a blind hole, and the through hole or the blind hole is one of a circular shape and an oval shape. Considering that the non-display area NA is not only provided with a camera but also may integrate different electrical components to integrate various functions, the through holes or the blind holes may be arranged in one of a circular shape and an elliptical shape according to the use requirement. Similarly, when the outer contour of the non-display area NA is set to be one of a circular shape and an oval shape, the shielding member 2 can be covered on the edge area of the non-display area NA, so as to reduce the jaggy feeling of the edge of the non-display area NA due to the low pixel density of the first display area AA1, ensure the uniformity of the brightness of the edge, and improve the display effect of the display panel.

The embodiment of the utility model provides a still provides a display device, including display panel and optical element, this display panel is the display panel in above-mentioned embodiment, and optical element and display panel's first display area AA1 corresponds the setting, and optical element specifically can be for being used for realizing the component of functions such as fingerprint identification, face identification under the screen.

The embodiment of the present invention provides a display device having the technical effects of the technical solutions of the display panel in any of the above embodiments, and the explanations of the structures and terms that are the same as or corresponding to the above embodiments are not repeated herein. The embodiment of the utility model provides a display device can be the cell-phone, also can be any electronic product that has the display function, including but not limited to following classification: TV set, notebook computer, desktop display, panel computer, digital camera, intelligent bracelet, intelligent glasses, vehicle-mounted display, medical equipment, industry control equipment, touch interaction terminal etc. the embodiment of the utility model provides a do not do special restriction to this.

Above, it is only the specific implementation manner of the present invention, and those skilled in the art can clearly understand that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered by the scope of the present invention.

It should also be noted that the exemplary embodiments mentioned in the present disclosure describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in a different order from the embodiments, or may be performed simultaneously.

Claims (11)

1. A display panel, comprising:

the display device comprises a display substrate, a first display area, a second display area and a non-display area, wherein the second display area is at least partially arranged around the first display area, the non-display area is adjacent to the first display area, and the first display area is provided with a plurality of edge sub-pixels which are adjacent to the non-display area and are arranged at intervals;

the shielding piece, display substrate's light-emitting side with a plurality of edge sub-pixel distribution region correspond the setting, the shielding piece is in orthographic projection on the display substrate covers the part at least edge sub-pixel, just the shielding piece is in orthographic projection of display substrate and the contour line of first display interval are located in the interval between the edge sub-pixel.

2. The display panel according to claim 1, wherein each of the edge sub-pixels comprises an anode, and the anodes of at least two of the edge sub-pixels of the same color are electrically connected to each other to form a merged sub-pixel unit;

the orthographic projection of the shielding piece on the display substrate at least covers part of the edge sub-pixels in the combined sub-pixel unit.

3. The display panel according to claim 2, wherein the display substrate includes an array layer, the array layer includes a plurality of pixel circuits, and each of the merged sub-pixel units is connected to a different one of the pixel circuits.

4. The display panel of claim 1, further comprising a touch layer, wherein the touch layer is disposed on the light-emitting side of the display substrate, and the shielding member and the touch layer are disposed on the same layer.

5. The display panel according to claim 4, wherein the touch layer includes a touch electrode layer, an insulating layer, and a bridging layer stacked in a direction perpendicular to a plane of the display substrate, and the barrier and the bridging layer are disposed in the same layer.

6. The display panel of claim 5, wherein the cross-bridge connection layer comprises at least one of an aluminum metal layer and a titanium aluminum titanium composite metal layer.

7. The display panel according to claim 1, wherein the first display region is disposed around the non-display region, and at least one side of an edge contour of the non-display region is a curved side.

8. The display panel according to claim 7, wherein the non-display area is provided with a through hole or a blind hole, and the through hole or the blind hole is one of circular and oval.

9. The display panel of claim 2, wherein the merged pixel sub-units of different colors form edge pixel groups, and an orthographic projection of each edge pixel group on the display substrate is rectangular and arranged in rows and columns.

10. The display panel according to claim 9, wherein the edge pixel group includes a convex portion protruding toward the non-display region, and an orthogonal projection of the blocking member on the display substrate at least partially covers the edge sub-pixels in the convex portion.

11. A display device, comprising:

a display panel according to any one of claims 1 to 10;

and the optical element is arranged corresponding to the first display area of the display panel.

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