CN111092109A

CN111092109A - Display panel and display device

Info

Publication number: CN111092109A
Application number: CN202010001534.1A
Authority: CN
Inventors: 蔡雨
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-05-01
Anticipated expiration: 2040-01-02
Also published as: CN111092109B

Abstract

The invention discloses a display panel and a display device. The display panel provided by the embodiment of the invention has a first display area and a second display area, the pixel density of the first display area is less than that of the second display area, the display panel comprises a substrate and a conductive structure layer positioned on one side of the substrate, wherein the conductive structure layer comprises a plurality of non-light-transmitting layers, each non-light-transmitting layer arranged on the same layer comprises a plurality of light-shielding units arranged at intervals, and in the first display area, the distance from one of two adjacent edges between two adjacent light-shielding units in each non-light-transmitting layer in the same layer to the substrate is greater than the distance from the other one to the substrate. The invention provides a display panel which can ensure the photosensitive effect of a photosensitive element integrated under a screen.

Description

Display panel and display device

Technical Field

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

Background

With the development of consumer electronics products such as mobile phones and the like including display panels and cameras, people have higher requirements on the visual experience of the electronic products, and users have higher requirements on screen occupation ratio, so that the comprehensive screen display of electronic equipment receives more and more attention in the industry.

Conventional electronic devices such as mobile phones, tablet computers, etc. need to integrate components such as front-facing cameras, earphones, infrared sensing elements, etc. The accessible sets up the printing opacity district on the display screen, and the printing opacity district on the external light accessible screen gets into the photosensitive element who is located the screen below, but the edge of regular patterns such as circuit in the printing opacity district makes external light take place the diffraction easily, influences photosensitive element's sensitization effect.

Disclosure of Invention

The invention provides a display panel and a display device, which are used for ensuring the photosensitive effect of a photosensitive element integrated under a screen.

In a first aspect, an embodiment of the present invention provides a display panel, which has a first display area and a second display area, where a pixel density of the first display area is less than a pixel density of the second display area, the display panel includes a substrate and a conductive structure layer located on one side of the substrate, where the conductive structure layer includes a plurality of non-transparent layers, each non-transparent layer located on a same layer includes a plurality of light-shielding units located at intervals, and in the first display area, a distance from one of two adjacent edges between two adjacent light-shielding units in each non-transparent layer in the same layer to the substrate is greater than a distance from the other one to the substrate.

In a second aspect, an embodiment of the present invention provides a display device, including any one of the display panels provided according to the embodiments of the present invention.

The display panel provided by the embodiment of the invention has a first display area and a second display area, the pixel density of the first display area is less than that of the second display area, the display panel comprises a substrate and a conductive structure layer positioned on one side of the substrate, wherein the conductive structure layer comprises a plurality of non-light-transmitting layers, each non-light-transmitting layer arranged on the same layer comprises a plurality of light-shielding units arranged at intervals, and in the first display area, the distance from one of two adjacent edges between two adjacent light-shielding units in each non-light-transmitting layer in the same layer to the substrate is greater than the distance from the other one to the substrate. Because the gap between two adjacent shading units in the non-light-transmitting layer is easy to diffract external light, diffraction stripes are formed on the photosensitive surface of the photosensitive element integrated under the first display area of the display panel, and the stripe brightness of the light path difference from the diffracted light at the edge of the gap to the photosensitive surface is the strongest, so that the zero-order stripe influences the photosensitive effect of the photosensitive element to a great extent, the light path difference from one of two adjacent edges between two adjacent shading units in the non-light-transmitting layer in the same layer in the first display area to the substrate is changed and is not 0 by the distance from the other edge to the substrate, the light intensity of the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

Drawings

Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.

FIG. 1 shows a schematic top view of a display panel according to an embodiment of the invention;

FIG. 2 shows an enlarged partial schematic view of the region Q of FIG. 1;

FIG. 3 shows a cross-sectional view in the direction C-C of FIG. 1;

FIG. 4 shows a cross-sectional view of an example of the cross-section of FIG. 2 in the direction D-D;

FIG. 5 is a schematic diagram showing the relationship between the distance from the adjacent edge of the adjacent light shielding unit to the substrate and the position of the zero-order bright stripe;

FIGS. 6 and 7 are cross-sectional views showing another example of the directions D-D and E-E in FIG. 2;

FIGS. 8 and 9 show cross-sectional views of a first specific example of the orientation D-D and the orientation E-E of FIG. 2;

FIGS. 10 and 11 are sectional views showing a second specific example of the direction D-D and the direction E-E in FIG. 2;

FIGS. 12 and 13 are sectional views showing a third specific example of the direction D-D and the direction E-E in FIG. 2;

FIGS. 14 and 15 show cross-sectional views of a fourth specific example of the orientation D-D and E-E of FIG. 2;

FIGS. 16 and 17 are sectional views showing a fifth specific example of the directions D-D and E-E in FIG. 2;

FIGS. 18 and 19 show sectional views of a sixth specific example of the orientation D-D and the orientation E-E in FIG. 2;

FIGS. 20 and 21 are sectional views showing a seventh specific example of the directions D-D and E-E in FIG. 2;

FIGS. 22 and 23 are sectional views showing an eighth specific example of the direction D-D and the direction E-E in FIG. 2;

FIGS. 24 and 25 are sectional views showing a ninth concrete example of the direction D-D and the direction E-E in FIG. 2;

FIG. 26 is a cross-sectional view showing an example of the direction F-F in FIG. 2;

FIG. 27 is a cross-sectional view showing a first specific example of the F-F direction in FIG. 2;

fig. 28 shows a cross-sectional view of a second specific example of the direction F-F in fig. 2.

In the figure:

10-a display panel;

100-substrate base plate;

200-a conductive structure layer; 210-a non-light transmitting layer; 212-a lead; 212 a-first lead; 212 b-second lead; 2121-line segment; 2121 a-subsegment; 220-a second electrode layer; 221-a second electrode;

300-a light emitting layer;

400-a first electrode layer;

600-an insulating layer; 610-grooves; 611-sub-grooves; 620-bump; 621-sub-projection;

AA 1-first display area; AA 2-second display area; p1-first pixel element; SU-shading unit; x-a first direction; y-second direction.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

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

It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.

Referring to fig. 1 and 2, fig. 1 is a schematic top view illustrating a display panel according to an embodiment of the invention, and fig. 2 is a schematic partial enlarged view illustrating a Q region in fig. 1.

The embodiment of the invention provides a display panel 10, the display panel 10 has a first display area AA1 and a second display area AA2, and the pixel density of the first display area AA1 is less than the pixel density of the second display area AA 2. The first display area AA1 includes a plurality of first pixel units P1, a light-transmitting region is formed between the first pixel units P1, the first display area AA1 can be reused as a reserved photosensitive element region, and external light can reach the photosensitive elements integrated under the display panel 10 through the first display area AA 1. The second display area AA2 includes a plurality of second pixel units. The light transmittance of the first display region AA1 is greater than the light transmittance of the second display region AA 2.

Herein, optionally, the light transmittance of the first display area AA1 is 15% or more. To ensure that the light transmittance of the first display area AA1 is greater than 15%, even greater than 40%, or even higher, the light transmittance of at least part of the functional film layer of the display panel 10 in this embodiment is greater than 80%, or even greater than 90%.

It is understood that the display panel 10 may be an Organic Light-emitting diode (OLED) display panel. The second display area AA2 is a normal display area of the display panel 10, and the second pixel units in the second display area AA2 may be, for example, a stripe distribution with red, green and blue (RGB) circularly arranged, a triangle distribution with red, green and blue staggered arranged, or the like. The first display area AA1 is a reserved area for a photosensitive element, which may be a camera. The shape of the first display area AA1 may be circular, oval, polygonal, or a combination of segments of the above shapes. The second display area AA2 may be disposed around the first display area AA 1. Alternatively, the first display area AA1 may be disposed at one side of the second display area AA 2. Still alternatively, the second display area AA2 partially surrounds the first display area AA 1. Fig. 1 exemplarily shows a circular first display area AA1 and a second display area AA2 may be disposed around the first display area AA 1.

Referring to fig. 3 and 4 together, fig. 3 shows a cross-sectional view along the direction C-C in fig. 1, and fig. 4 shows a cross-sectional view along the direction D-D in fig. 2.

The display panel 10 includes a substrate 100 and a conductive structure layer 200 on one side of the substrate 100.

The base substrate 100 may include a transparent insulating material. The substrate base 100 may include one or more layers. The base substrate 100 may include a flexible transparent organic material layer, such as a polyimide-based resin layer. The substrate base plate 100 may further include an inorganic material layer, such as a silicon oxide layer, a silicon nitride layer. The inorganic material layer may block the penetration of water or oxygen.

The conductive structure layer 200 may include a plurality of conductive layers, which may include a metal, a metal alloy, a metal nitride, a conductive metal oxide, a transparent conductive material, and the like, which may be used alone or in a suitable combination thereof.

The conductive structure layer 200 includes a plurality of non-transparent layers 210, and each non-transparent layer 210 disposed on the same layer includes a plurality of light shielding units SU disposed at intervals.

Specifically, at least one of the plurality of light-non-transmissive layers 210 may include a plurality of strip-shaped light-shielding units SU extending in the same direction. Or at least one of the plurality of light-non-transmissive layers 210 may include a plurality of block-shaped light-shielding units SU arranged in an array. The light shielding unit SU is non-light transmissive. The light shielding unit SU may include one or more of a light absorbing material, a light reflecting material, and the like.

In the first display area AA1, the distance from one of two adjacent edges between two adjacent light-shielding units SU in each light-non-transmissive layer 210 in the same layer to the substrate base plate 100 is greater than the distance from the other to the substrate base plate 100. That is, two adjacent edges between two adjacent light shielding units SU in each light non-transmissive layer 210 in the same layer are arranged in a staggered manner in the thickness direction of the display panel 10.

According to the display panel 10 of the embodiment of the invention, the distance from one of the two adjacent edges between the two adjacent light shielding units SU in each non-light-transmitting layer 210 in the same layer in the first display area AA1 to the substrate 100 is greater than the distance from the other one to the substrate 100, so that the optical path difference of the diffracted light of the two edges reaching the original zero-order bright stripe is changed and is not 0, further the light intensity at the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

Specifically, referring to fig. 5, fig. 5 is a schematic diagram illustrating a relationship between a distance between adjacent edges of adjacent light shielding units and the substrate and a position of the zero-order bright stripe.

In the case where the adjacent light shielding units SU ' and SU are equal in distance from the substrate base plate 100, light passing through the points a ' and B on the adjacent edges of the light shielding units SU ' and SU is diffracted, and diffraction fringes are formed at the point K. Wherein, the distance from the point A ' to the point K is L1, the optical path length from the point A ' to the point K is nL1 (where n is the refractive index of the medium between the point A ' and the point K); and when the distance from the point B to the point K is L2, the optical path length from the point B to the point K is nL2, and when L1 is equal to L2, the optical path length difference between nL1 and nL2 is zero, namely, the point K is a zero-order bright stripe with the maximum diffraction stripe brightness. Under the condition that the distances from the adjacent light shielding units SU to the substrate base plate 100 are equal, light rays at the point A and the point B on the adjacent edges of the adjacent light shielding units SU are diffracted, the distance from the point A to the point K is L3, and the distance from the point A to the point A' is L4, based on the three-edge property of a triangle, L3+ L4> L1, so that the optical path difference of the diffracted light rays reaching the point K is n (L3+ L4-L2) and is not equal to zero, therefore, the light intensity at the point K is not a zero-level bright stripe, the light intensity at the original zero-level bright stripe (point K) is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

And the light shielding units SU in the non-light transmissive layer 210 of the adjacent layer have different extending directions and together form a grid-shaped light shielding structure. The distances from the edges of the light shielding units SU of different non-light-transmitting layers 210 to the substrate 100 are different, and the adjacent edges of the adjacent light shielding units SU of the non-light-transmitting layer 210 of the same layer are different, so that the distances from the adjacent edges of the four light shielding units SU corresponding to one grid in the grid-shaped light shielding structure to the substrate 100 are all different, and thus, the optical path difference of the diffracted light of the four edges reaching the original zero-order bright stripe is changed and is not 0, the light intensity of the original zero-order bright stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

Referring to fig. 6 and 7 together, fig. 6 and 7 show cross-sectional views of another example of the direction D-D and the direction E-E of fig. 2.

In some embodiments, the display panel 10 further includes an insulating layer 600 on a side of the non-light-transmissive layer 210 close to the substrate 100. The number of the insulating layers 600 may be plural. The adjacent non-transparent layers 210 in the conductive structure layer 200 are insulated and spaced by the insulating layer 600. An insulating layer 600 may also be disposed between the substrate 100 and the conductive structure layer 200.

For clarity of illustration, fig. 6 and 7 show only one non-light transmissive layer 210 and one insulating layer 600. It is to be understood that the figures herein selectively illustrate portions of the various layers in order to more clearly illustrate the layers.

The insulating layer 600 may be an inorganic layer, and the insulating layer 600 may be formed using a silicon compound, such as silicon oxide or silicon nitride. The insulating layer 600 may also be an organic layer, such as a polyimide-based resin layer. The insulating layer 600 may also be a multilayer structure including an inorganic layer and an organic layer.

The surface of the insulating layer 600 away from the substrate base plate 100 is a patterned surface including a groove 610 and a protrusion 620, and in the non-light-transmissive layer 210 disposed adjacent to the surface of the insulating layer 600, one of two edges respectively located in two adjacent light-shielding units SU and adjacent to each other is located on the top surface of the protrusion 620 and/or the other is located on the bottom surface of the groove 610.

The insulating layer 600 with the groove 610 and the protrusion 620 is provided, so that the patterned non-light-transmitting layer 210 can be conveniently provided on the insulating layer 600, and the process implementation is facilitated.

The light shielding unit SU of the conductive structure layer 200 includes a lead 212. The leads 212 may comprise a metal, metal alloy, metal nitride, conductive metal oxide, or the like, which may be used alone or in suitable combinations thereof.

As shown in fig. 2, the lead wires 212 include a first lead wire 212a and a second lead wire 212 b. At least one non-light-transmitting layer 210 of the plurality of non-light-transmitting layers 210 includes a plurality of first lead lines 212a extending in the first direction X and spaced apart from each other in the second direction Y. The first direction X intersects the second direction Y. Preferably, the first direction X is perpendicular to the second direction Y. At least one of the plurality of non-light-transmitting layers 210 includes a plurality of second lead lines 212b extending in the second direction Y and spaced apart from each other in the first direction X.

In an embodiment where the display panel 10 is an organic light emitting diode display panel, the driving circuit of the organic light emitting diode may be any one of a 2T1C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit. Herein, the "2T 1C circuit" refers to a pixel circuit including 2 thin film transistors (T) and 1 capacitor (C) in the pixel circuit, and the other "7T 1C circuit", "7T 2C circuit", "9T 1C circuit", and the like are analogized.

The first lead 212a may include a scan signal line (S1), a scan signal line (S2), a light emission control signal line (Emit), a reference voltage signal line (Vref), and a lateral power supply signal line (H-PVDD) extending in the first direction X. The second wire 212b may include a data signal line (data) extending in the second direction Y and a vertical power signal line (V-PVDD).

Referring to fig. 8 and 9 together, fig. 8 and 9 show cross-sectional views of a first specific example of the direction D-D and the direction E-E in fig. 2.

In some embodiments, the distances from the substrate base plate 100 to two adjacent lead lines 212 in the same non-light-transmissive layer 210 are different. The distances from the portions in each lead 212 to the substrate base plate 100 may be the same. The lead line 212 of the non-light-transmitting layer 210 may be a first lead line 212a extending in the first direction X, or may be a second lead line 212b extending in the second direction Y.

In this embodiment, the non-light-transmitting layer 210 is provided with an insulating layer 600 on a side close to the substrate 100. The surface of the insulating layer 600 facing away from the base substrate 100 includes a plurality of grooves 610, and a protrusion 620 is defined between adjacent grooves 610. In the embodiment where the lead 212 is the first lead 212a, the grooves 610 of the insulating layer 600 extend in the first direction X and are disposed at intervals in the second direction Y. One of two adjacent lead lines 212 in the non-transparent layer 210 is located at the bottom surface of the groove 610, and the other is located at the top surface of the protrusion 620. Thus, the distances from the two adjacent first leads 212a of the same non-light-transmitting layer 210 to the substrate 100 are different, and the distances from the adjacent edges of the two adjacent first leads 212a to the substrate 100 are different, so that the optical path difference of the diffracted light at the two edges reaching the original zero-order bright stripe is changed and is not 0, the light intensity at the original zero-order bright stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved. The groove 610 may be formed on the surface of the substrate base plate 100 by a photolithography process, a laser process, or the like, and the process is mature, so that the patterned non-light-transmitting layer 210 may be formed on the surface.

It will be appreciated that the groove 610 shown in fig. 8 is a right angle groove with sidewalls perpendicular to the bottom surface, and in alternative embodiments, the groove 610 may be a trapezoidal groove with sidewalls intersecting the bottom surface at an obtuse angle.

Referring to fig. 10 and 11 together, fig. 10 and 11 show cross-sectional views of a second embodiment of fig. 2 in the directions D-D and E-E.

In other embodiments, the lead 212 includes a plurality of line segments 2121 connected in sequence along the extending direction thereof, the distance from two adjacent line segments 2121 of the lead 212 to the substrate 100 is different, and the distance from two adjacent line segments 2121 to the substrate 100 between two adjacent lead 212 in the same non-light-transmissive layer 210 is different. The lead 212 may be a first lead 212a extending in the first direction X, or may be a second lead 212b extending in the second direction Y. Alternatively, two line segments 2121 of the adjacent three line segments 2121 of the lead 212, which are spaced apart, may have the same distance to the substrate 100. Two adjacent wire segments 2121 of the lead 212 are connected by a connecting segment. In an embodiment where the lead 212 is the first lead 212a, the lead 212 may include a plurality of line segments 2121 connected in series along the first direction X.

In this embodiment, the non-light-transmitting layer 210 is provided with an insulating layer 600 on a side close to the substrate 100. The surface of the insulating layer 600 facing away from the base substrate 100 includes a plurality of grooves 610, and a protrusion 620 is defined between adjacent grooves 610. The grooves 610 of the insulating layer 600 are arranged in an array. The grooves 610 of the insulating layer 600 are spaced apart in the first direction X and spaced apart in the second direction Y. The protrusions 620 of the insulating layer 600 are arranged in an array. The protrusions 620 of the insulating layer 600 are spaced apart in the first direction X and spaced apart in the second direction Y. One of two adjacent wire segments 2121 of lead 212 is located at the bottom surface of groove 610 and the other is located at the top surface of protrusion 620. The connecting segment connecting the two line segments 2121 is located at the sidewall of the groove 610. The sidewalls of the groove 610 may be disposed perpendicular to the bottom surface of the groove 610. The sidewalls of the groove 610 may also be disposed at an obtuse angle to the bottom surface of the groove 610. One of two adjacent line segments 2121 between two adjacent lead lines 212 of the non-transparent layer 210 is located on the bottom surface of the groove 610, and the other is located on the top surface of the protrusion 620. Thus, the distances from two adjacent line segments 2121 of the same non-light-transmitting layer 210 to the substrate 100 are different, and the distances from the adjacent edges of the two adjacent line segments 2121 to the substrate 100 are different, so that the optical path difference of the diffracted light of the two edges reaching the original zero-order bright stripe is changed and is not 0, and further, the light intensity of the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

Referring to fig. 12 and 13 together, fig. 12 and 13 show cross-sectional views of a third specific example of the direction D-D and the direction E-E in fig. 2.

In some further embodiments, at least one of the line segments 2121 includes a plurality of sub-segments 2121a, adjacent two of the sub-segments 2121a have different distances from the substrate baseplate 100, and adjacent two of the sub-segments 2121a between adjacent two of the leads 212 have different distances from the substrate baseplate 100. Alternatively, two sub-segments 2121a of adjacent three sub-segments 2121a of the line segment 2121, which are spaced apart, may have the same distance to the substrate base plate 100. Two adjacent subsegments 2121a of the line segment 2121 are connected by a sub-connector segment. In embodiments where the lead 212 is the first lead 212a, the line segment 2121 may include a plurality of sub-segments 2121a connected in series along the first direction X.

In this embodiment, the non-light-transmitting layer 210 is provided with an insulating layer 600 on a side close to the substrate 100. The surface of the insulating layer 600 facing away from the base substrate 100 includes a plurality of grooves 610, and a protrusion 620 is defined between adjacent grooves 610. The grooves 610 of the insulating layer 600 are arranged in an array. The grooves 610 of the insulating layer 600 are spaced apart in the first direction X and spaced apart in the second direction Y. The protrusions 620 of the insulating layer 600 are arranged in an array. The protrusions 620 of the insulating layer 600 are spaced apart in the first direction X and spaced apart in the second direction Y. The groove 610 may be a stepped groove 610. The protrusion 620 may be a stepped protrusion 620. In some examples, two adjacent subsections 2121a of line segment 2121 are one located at a bottom surface of stepped groove 610 and the other located at a stepped surface of stepped groove 610. In other examples, one of two adjacent subsections 2121a of line segment 2121 is located at a bottom surface of stepped boss 620 and the other is located at a stepped surface of stepped boss 620. All of the sub-segments 2121a of the same lead 212 may be disposed in the stepped recess 610. All of the sub-segments 2121a of the same lead 212 may be disposed on the stepped protrusion 620. Alternatively, a portion of sub-segment 2121a of the same lead 212 is disposed in stepped recess 610, and another portion of sub-segment 2121a is disposed in stepped protrusion 620. The sidewalls of the groove 610 may be disposed perpendicular to the bottom surface of the groove 610. The sidewalls of the groove 610 may also be disposed at an obtuse angle to the bottom surface of the groove 610. The sidewalls of stepped protrusion 620 may be disposed perpendicular to the top surface of protrusion 620. The sidewalls of the stepped protrusion 620 may also be disposed at an obtuse angle to the top surface of the protrusion 620. One of two adjacent sub-segments 2121a between two adjacent lead lines 212 of the non-transparent layer 210 is located on the bottom surface of the groove 610, and the other is located on the top surface of the protrusion 620. Thus, the distances from two adjacent sub-segments 2121a of the same non-light-transmitting layer 210 to the substrate 100 are different, and the distances from the adjacent edges of the two adjacent sub-segments 2121a to the substrate 100 are different, so that the optical path difference of the diffracted light from the two edges reaching the original zero-order bright stripe is changed and is not 0, and further, the light intensity at the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

It is understood that the sub-segment 2121a may further include a plurality of sub-segments arranged in different layers, and the sub-segments may also continue to be segmented as long as different layers of adjacent segments of the same lead 212 and different layers of adjacent segments of adjacent leads 212 are satisfied.

Referring to fig. 14 and 15 together, fig. 14 and 15 show cross-sectional views of a fourth embodiment of the device in fig. 2 in the directions D-D and E-E.

In yet further embodiments, the line segment 2121 intersects the substrate 100, and the distance from the line segment 2121 to the substrate 100 gradually changes. The line segment 2121 may be a straight line segment 2121 along its extending direction. Fig. 14 and 15 show straight line segments 2121. The line segment 2121 may also be a curved line segment 2121 along its extension direction.

In this embodiment, the non-light-transmitting layer 210 is provided with an insulating layer 600 on a side close to the substrate 100. The surface of the insulating layer 600 facing away from the base substrate 100 includes a plurality of grooves 610, and a protrusion 620 is defined between adjacent grooves 610. The grooves 610 are continuously arranged in one of the first direction X and the second direction Y, and are staggered in the other of the first direction X and the second direction Y. The sidewalls of the groove 610 may be inclined planes. The sidewalls of the groove 610 may also be curved. Line segments 2121 are disposed on the sidewalls of groove 610. Thus, the distances from the adjacent edges of the two adjacent line segments 2121 to the substrate 100 are different, so that the optical path difference between the diffracted light from the two edges and reaching the original zero-order bright stripe is changed and is not 0, and further, the light intensity at the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

While fig. 15 shows that the cross-section of the groove 610 is triangular and the cross-section of the protrusion 620 is also triangular, it will be appreciated that the groove 610 may be a trapezoidal groove having a planar bottom surface and the protrusion 620 may be a trapezoidal protrusion having a planar top surface.

Referring to fig. 16 and 17 together, fig. 16 and 17 show cross-sectional views of a fifth embodiment in the directions D-D and E-E of fig. 2.

In still other embodiments, the two edges of the leads 212 that are opposite in a direction perpendicular to their direction of extension have different distances from the substrate base plate 100. The leads 212 are a continuous structure between the two edges.

In this embodiment, the non-light-transmitting layer 210 is provided with an insulating layer 600 on a side close to the substrate 100. The surface of the insulating layer 600 facing away from the base substrate 100 includes a plurality of grooves 610, and a protrusion 620 is defined between adjacent grooves 610. In the embodiment where the lead 212 is the first lead 212a, the grooves 610 of the insulating layer 600 extend in the first direction X and are disposed at intervals in the second direction Y. In some alternative examples, one of two edges of the lead 212 opposite in a direction perpendicular to an extending direction thereof is located at a bottom surface of the groove 610, and the other is located at a top surface of the protrusion 620. One of the adjacent edges of two adjacent lead lines 212 in the non-transparent layer 210 is located at the bottom surface of the groove 610, and the other one is located at the top surface of the protrusion 620. Alternatively, the groove 610 and/or the protrusion 620 may have a stepped structure. Thus, the distances from the adjacent edges of the two adjacent first leads 212a to the substrate 100 are different, so that the optical path difference of the diffracted light from the two edges reaching the original zero-order bright stripe is changed and is not 0, the light intensity at the original zero-order bright stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

Referring to fig. 18 and 19 and fig. 20 and 21 together, fig. 18 and 19 show sectional views of a sixth specific example of the directions D-D and E-E in fig. 2, and fig. 12a and 12b show sectional views of a seventh specific example of the directions D-D and E-E in fig. 2.

In some further embodiments, the plane of the leads 212 is inclined in a direction perpendicular to the direction in which the leads 212 extend and intersects the substrate base plate 100. That is, the leads 212 are disposed obliquely to the base substrate 100 in a plane in a direction perpendicular to the extending direction of the leads 212. The distance of the lead 212 from the base substrate 100 gradually changes in a direction perpendicular to the extending direction of the lead 212. The inclination directions of two adjacent lead lines 212 in the same non-light-transmitting layer 210 are the same. That is, the edge of one of the two adjacent leads 212 that is relatively closer to the substrate base plate 100 is adjacent to the edge of the other that is relatively farther from the substrate base plate 100.

In some specific examples, as shown in fig. 18, the inclination angles of two adjacent lead lines 212 (first lead lines 212a) in the same non-light-transmissive layer 210 with respect to the base substrate 100 are the same. In other specific examples, as shown in fig. 20, the inclination angles of two adjacent lead lines 212 (first lead lines 212a) in the same non-light-transmissive layer 210 with respect to the base substrate 100 are different. The different angles of inclination enable the regular patterned arrangement of the leads 212 to be varied, and accordingly reduce the diffraction effect.

In the present embodiment, in the insulating layer 600 disposed on the side of the non-light-transmitting layer 210 close to the substrate 100, the plane of the sidewall of the groove 610 intersects with the substrate 100. I.e., the sidewalls of the groove 610 are disposed obliquely with respect to the substrate base plate 100. Two opposite edges of the lead line 212 in the non-transparent layer 210 along a direction perpendicular to the extending direction thereof are disposed on the sidewalls of the groove 610. As shown in fig. 18 and 19 and fig. 20 and 21, in the embodiment where the lead 212 is the first lead 212a, the distances from the adjacent edges of two adjacent first leads 212a to the substrate 100 are different, so that the optical path difference of the diffracted light at the two edges reaching the original zero-order bright stripe is changed and is not 0, and further, the light intensity at the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved. Moreover, the lead 212 (the first lead 212a) is obliquely arranged in the direction perpendicular to the extending direction of the lead 212, so that the width of the lead 212 in the direction perpendicular to the extending direction of the lead 212 can be ensured, the width of the projection of the lead 212 on the substrate 100 can be correspondingly reduced, the electrical performance and the mechanical performance of the lead 212 can be ensured, the light transmittance of the layer where the lead 212 is located can be increased, and the photosensitive effect of the photosensitive element can be improved.

While fig. 18 and 20 show that the cross-section of the recess 610 is triangular and the cross-section of the protrusion 620 is also triangular, it will be appreciated that the recess 610 may be a trapezoidal shaped recess having a planar bottom surface and the protrusion 620 may be a trapezoidal shaped protrusion having a planar top surface.

Referring to fig. 22 and 23 together, fig. 22 and 23 are sectional views showing an eighth embodiment in the directions D-D and E-E of fig. 2.

In still further embodiments, the plane of the leads 212 is inclined in a direction perpendicular to the direction in which the leads 212 extend and intersects the substrate base 100. The distance of the lead 212 from the base substrate 100 gradually changes in a direction perpendicular to the extending direction of the lead 212. The two adjacent lead lines 212 in the same non-light-transmitting layer 210 have different tilt directions. That is, the edges of two adjacent leads 212 that are relatively closer to the substrate base plate 100 are disposed adjacent or away from each other.

In the present embodiment, in the insulating layer 600 disposed on the side of the non-light-transmitting layer 210 close to the substrate 100, the plane of the sidewall of the groove 610 intersects with the substrate 100. I.e., the sidewalls of the groove 610 are disposed obliquely with respect to the substrate base plate 100. Two opposite edges of the lead line 212 in the non-transparent layer 210 along a direction perpendicular to the extending direction thereof are disposed on the sidewalls of the groove 610. Thus, in the embodiment where the leads 212 are the first leads 212a, the distances from the adjacent edges of two adjacent first leads 212a to the substrate 100 are different, so that the optical path difference of the diffracted light from the two edges reaching the original zero-order bright stripe is changed and is not 0, and further, the light intensity at the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved. Moreover, the lead 212 (the first lead 212a) is obliquely arranged in the direction perpendicular to the extending direction of the lead 212, so that the width of the lead 212 in the direction perpendicular to the extending direction of the lead 212 can be ensured, the width of the projection of the lead 212 on the substrate 100 can be correspondingly reduced, the electrical performance and the mechanical performance of the lead 212 can be ensured, the light transmittance of the layer where the lead 212 is located can be increased, and the photosensitive effect of the photosensitive element can be improved.

Referring to fig. 24 and 25 together, fig. 24 and 25 show sectional views of a ninth embodiment in the directions D-D and E-E of fig. 2.

In some embodiments, two edges of the lead 212 opposite in a direction perpendicular to an extending direction thereof have the same distance to the substrate base plate 100, and the distance from the two edges to the substrate base plate 100 is different from the distance from a portion of the lead 212 located between the two edges to the substrate base plate 100.

In this embodiment, the non-light-transmitting layer 210 is provided with an insulating layer 600 on a side close to the substrate 100. The surface of the insulating layer 600 facing away from the base substrate 100 includes a plurality of grooves 610, and a protrusion 620 is defined between adjacent grooves 610. The top surface of one of the adjacent two protrusions 620 has two sub-protrusions 621 arranged at intervals. In the embodiment where the lead 212 is the first lead 212a, the grooves 610 of the insulating layer 600 extend in the first direction X and are disposed at intervals in the second direction Y. The sub-protrusions 621 extend in the first direction X and are spaced apart in the second direction Y. Two edges of one of the two adjacent lead lines 212 in the non-transparent layer 210, which are opposite to each other in a direction perpendicular to the extending direction thereof, are located on the top surfaces of the two sub-protrusions 621 of the same protrusion 620, and two edges of the other one, which are opposite to each other in the direction perpendicular to the extending direction thereof, are located on the bottom surface or the sidewall of the groove 610. In the embodiment where the leads 212 are the first leads 212a, the distances from the adjacent edges of two adjacent first leads 212a to the substrate 100 are different, so that the optical path difference of the diffracted light at the two edges reaching the original zero-order bright stripe is changed and is not 0, and further, the light intensity at the original zero-order bright stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

Referring also to fig. 26, fig. 26 is a cross-sectional view of an example of the direction F-F in fig. 2.

The display panel 10 according to the embodiment of the invention further includes a light emitting layer 300 and a first electrode layer 400 on the side of the conductive structure layer 200 away from the substrate 100. The first electrode layer 400 is located on the side of the light emitting layer 300 away from the substrate 100. The plurality of non-light-transmitting layers 210 include a second electrode layer 220, and the second electrode layer 220 includes a plurality of second electrodes 221 arranged in an array. The second electrode 221 is a light shielding unit SU.

The light emitting layer 300 may be an OLED light emitting layer, and the display panel 10 may further include at least one of a hole injection layer, a hole transport layer, an electron injection layer, or an electron transport layer according to design requirements. The first electrode layer 400 is a cathode layer. The first electrode layer 400 may be a light-transmitting electrode. In some embodiments, the first electrode layer 400 includes an Indium Tin Oxide (ITO) layer or an Indium Zinc Oxide (IZO) layer. The second electrode layer 220 is an anode layer. The second electrode layer 220 may be a reflective electrode including a first light-transmissive conductive layer, a reflective layer on the first light-transmissive conductive layer, and a second light-transmissive conductive layer on the reflective layer. The first and second transparent conductive layers may be ITO, IZO, etc., and the reflective layer may be a metal layer, such as made of silver.

Referring also to fig. 27, fig. 27 is a cross-sectional view of a first embodiment taken along line F-F of fig. 2.

In some embodiments, the distances from the substrate base plate 100 to two adjacent second electrodes 221 are different.

In this embodiment, the insulating layer 600 is disposed on the second electrode layer 220 near the substrate 100. The surface of the insulating layer 600 facing away from the base substrate 100 includes a plurality of grooves 610, and a protrusion 620 is defined between adjacent grooves 610. The grooves 610 of the insulating layer 600 are arranged in an array. The grooves 610 of the insulating layer 600 are spaced apart in the first direction X and spaced apart in the second direction Y. The protrusions 620 of the insulating layer 600 are arranged in an array. The protrusions 620 of the insulating layer 600 are spaced apart in the first direction X and spaced apart in the second direction Y. One of two adjacent second electrodes 221 in the second electrode layer 220 is located on the bottom surface of the groove 610, and the other is located on the top surface of the protrusion 620. Thus, the distances from the adjacent edges of the two adjacent second electrodes 221 to the substrate 100 are different, so that the optical path difference of the diffracted light from the two edges reaching the original zero-order bright stripe is changed and is not 0, the light intensity at the original zero-order bright stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

Referring also to fig. 28, fig. 28 is a cross-sectional view of a second embodiment taken along line F-F of fig. 2.

In some further embodiments, the distance from the edge of the second electrode 221 to the substrate base plate 100 is the same, and the distance from the edge of the second electrode 221 to the substrate base plate 100 is different from the distance from the middle portion surrounded by the edge to the substrate base plate 100.

In this embodiment, the insulating layer 600 is disposed on the second electrode layer 220 near the substrate 100. The surface of the insulating layer 600 remote from the base substrate 100 includes a plurality of protrusions 620. The protrusions 620 are arranged in an array. The protrusions 620 are spaced apart in the first direction X and in the second direction Y. Two adjacent protrusions 620 are separated by a groove 610. One of the two adjacent protrusions 620 has a sub-protrusion 621 on the top surface, and a sub-groove 611 is recessed in the middle of the sub-protrusion 621. The edge of one of the two adjacent second electrodes 221 in the second electrode layer 220 is located at the bottom or the sidewall of the groove 610 and the middle portion surrounded by the edge is at least partially located at the top surface of the protrusion 620, the edge of the other is located at the top surface of the sub-protrusion 621 or the sidewall of the sub-groove 611 and the middle portion surrounded by the edge is located at the bottom surface of the sub-groove 611. Thus, the distances from the adjacent edges of the two adjacent second electrodes 221 to the substrate 100 are different, so that the optical path difference of the diffracted light from the two edges reaching the original zero-order bright stripe is changed and is not 0, the light intensity at the original zero-order bright stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.

The embodiment of the present invention further provides a display device, including any one of the display panels 10 provided in the embodiments of the present invention. The following description will be given taking as an example a display device of an embodiment including the display panel 10 of the above-described embodiment.

In the display device of the present embodiment, the display panel 10 may be the display panel 10 of one of the above embodiments, the display panel 10 has a first display area AA1 and a second display area AA2, and the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA 2.

The display panel 10 includes a first surface and a second surface opposite to each other, wherein the first surface is a display surface. In some embodiments, the display device further includes a photosensitive element, the photosensitive element is disposed in the first display area AA1, and the photosensitive element is located on a side of the substrate 100 facing away from the light emitting structure layer. That is, the photosensitive element is located on the second surface side of the display panel 10, and the photosensitive element corresponds to the first display area AA 1.

The photosensitive element comprises one or more of a camera module, a light sensor and an ultrasonic distance sensor.

In some embodiments, the photosensitive element may be an image capture device for capturing external image information. In this embodiment, the photosensitive element is a Complementary Metal Oxide Semiconductor (CMOS) image capture device. In other embodiments, the photosensitive element may also be a Charge-coupled Device (CCD) image capture Device or other types of image capture devices.

In other embodiments, the light sensing element may be an infrared sensor, a proximity sensor, an infrared lens, a flood sensing element, an ambient light sensor, a dot matrix projector, or other light sensor.

In addition, the display device may further integrate other components, such as an earpiece, a speaker, etc., on the second surface of the display panel 10.

Since the display device provided by the embodiment of the invention comprises any one of the display panels 10 provided by the above embodiments, the same and corresponding technical effects are achieved.

In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The display panel is characterized by comprising a first display area and a second display area, wherein the pixel density of the first display area is smaller than that of the second display area, the display panel comprises a substrate and a conductive structure layer positioned on one side of the substrate, the conductive structure layer comprises a plurality of non-transparent layers, each non-transparent layer arranged on the same layer comprises a plurality of light shading units arranged at intervals, and in the first display area, the distance from one of two adjacent edges between two adjacent light shading units in each non-transparent layer in the same layer to the substrate is larger than the distance from the other one to the substrate.

2. The display panel according to claim 1, wherein the light shielding unit of the conductive structure layer comprises a lead line including a first lead line and a second lead line, wherein at least one of the non-light-transmitting layers comprises a plurality of first lead lines extending in a first direction and arranged at intervals in a second direction, and wherein the first direction intersects with the second direction,

at least one of the non-light-transmitting layers includes a plurality of second lead lines extending in the second direction and spaced apart from each other in the first direction.

3. The display panel according to claim 2, wherein distances from the substrate base plate to two adjacent lead lines in the same non-light-transmitting layer are different.

4. The display panel according to claim 2, wherein the lead lines include a plurality of line segments connected in sequence along an extending direction thereof, and a distance between two adjacent line segments of the lead lines and the substrate base plate is different, and a distance between two adjacent line segments of the lead lines in the same non-light-transmissive layer and the substrate base plate is different.

5. The display panel according to claim 4, wherein at least one of the line segments comprises a plurality of sub-segments, and the distance from two adjacent sub-segments to the substrate base plate is different between two adjacent leads.

6. The display panel according to claim 4, wherein a straight line where the line segment is located intersects the substrate base plate, and a distance from the line segment to the substrate base plate gradually changes.

7. The display panel according to claim 2, wherein distances from two edges of the lead line opposite in a direction perpendicular to an extending direction thereof to the substrate base plate are different.

8. The display panel according to claim 7, wherein the plane of the lead line is inclined in a direction perpendicular to the extending direction of the lead line and intersects with the substrate, the distance between the lead line and the substrate gradually changes in the direction perpendicular to the extending direction of the lead line, and the inclination directions of two adjacent lead lines in the same non-light-transmitting layer are the same.

9. The display panel according to claim 8, wherein the inclination angles of the two adjacent lead lines in the same non-light-transmitting layer with respect to the substrate base plate are the same.

10. The display panel according to claim 8, wherein the inclination angles of two adjacent lead lines in the same non-light-transmitting layer with respect to the substrate base plate are different.

11. The display panel according to claim 7, wherein the plane of the lead line is inclined in a direction perpendicular to the extending direction of the lead line and intersects with the substrate, the distance between the lead line and the substrate gradually changes in the direction perpendicular to the extending direction of the lead line, and the inclination directions of two adjacent lead lines in the same non-light-transmitting layer are different.

12. The display panel according to claim 2, wherein two edges of the lead opposite in a direction perpendicular to an extending direction thereof are at the same distance from the substrate base plate, and the distance from the two edges to the substrate base plate is different from the distance from a portion of the lead located between the two edges to the substrate base plate.

13. The display panel according to claim 1, wherein the display panel further comprises a light emitting layer and a first electrode layer on a side of the conductive structure layer away from a substrate, the first electrode layer is on a side of the light emitting layer away from the substrate, the plurality of non-light-transmissive layers include a second electrode layer, the second electrode layer includes a plurality of second electrodes arranged in an array, and the light shielding unit of the conductive structure layer includes the second electrode.

14. The display panel according to claim 13, wherein distances from adjacent two of the second electrodes to the substrate base plate are different.

15. The display panel according to claim 13, wherein the distance from the edge of the second electrode to the substrate base plate is the same, and the distance from the edge of the second electrode to the substrate base plate is different from the distance from the middle portion surrounded by the edge to the substrate base plate.

16. The display panel according to claim 1, wherein the display panel further comprises an insulating layer on a side of the non-light-transmitting layer close to the substrate base plate, a surface of the insulating layer away from the substrate base plate is a patterned surface including a groove and a protrusion, and one of two edges of the non-light-transmitting layer adjacent to the surface of the insulating layer, which are respectively located in two adjacent light-shielding units and adjacent to each other, is located on a top surface of the protrusion and/or the other is located on a bottom surface of the groove.

17. A display device characterized by comprising the display panel according to any one of claims 1 to 16.

18. The display device according to claim 17, further comprising a photosensitive element, wherein the photosensitive element is disposed in the first display region, and the photosensitive element is located on a side of the substrate base plate facing away from the light emitting structure layer.

19. The display device according to claim 18, wherein the light sensing element comprises one or more of a camera module, a light sensor, and an ultrasonic distance sensor.