CN111162109B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN111162109B CN111162109B CN202010001444.2A CN202010001444A CN111162109B CN 111162109 B CN111162109 B CN 111162109B CN 202010001444 A CN202010001444 A CN 202010001444A CN 111162109 B CN111162109 B CN 111162109B
- Authority
- CN
- China
- Prior art keywords
- light
- region
- layer
- display panel
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
Landscapes
- Electroluminescent Light Sources (AREA)
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, wherein the pixel density of the first display area is less than that of the second display area, and the display panel comprises: a substrate base plate; the light emitting layer is positioned on the substrate and comprises a plurality of light emitting units which are arranged at intervals, and each light emitting unit comprises a non-light-transmitting layer; the first display area is provided with a luminous layer, wherein the luminous layer is provided with a color filter layer which comprises a plurality of filter units; at least one of the adjacent light filtering units has at least different thickness in the first cross section and/or the adjacent light filtering units has different thickness in the first cross section, and the first cross section is a cross section passing through the edge of the non-light-transmitting layer and perpendicular to the substrate. According to the display panel provided by the embodiment of the invention, the photosensitive effect of the photosensitive element integrated under the screen can be ensured.
Description
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 electrode 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, and a pixel density of the first display area is less than a pixel density of the second display area, and the display panel includes: a substrate base plate; the light-emitting layer is positioned on the substrate and comprises a plurality of light-emitting units which are arranged at intervals, and each light-emitting unit comprises a non-light-transmitting layer; in the first display area, a color filter layer is arranged on the light-emitting layer and comprises a plurality of filter units, the color of each filter unit is the same as the color of light emitted by the overlapped light-emitting units in the direction vertical to the plane of the substrate base plate, and the orthographic projection of the filter units on the substrate base plate covers and extends the orthographic projection of the non-light-transmitting layers of the corresponding light-emitting units on the substrate base plate; at least one of the adjacent light filtering units has at least different thickness in the first cross section and/or the adjacent light filtering units has different thickness in the first cross section, and the first cross section is a cross section passing through the edge of the non-light-transmitting layer and perpendicular 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.
According to the embodiment of the present invention, a display panel having a first display area and a second display area, the pixel density of the first display area being smaller than the pixel density of the second display area, the display panel includes: a base substrate; the light-emitting layer is positioned on the substrate and comprises a plurality of light-emitting units which are arranged at intervals, and each light-emitting unit comprises a non-light-transmitting layer; in the first display area, a color filter layer is arranged on the light-emitting layer and comprises a plurality of filter units, the color of each filter unit is the same as the color of light emitted by the overlapped light-emitting units in the direction vertical to the plane of the substrate base plate, and the orthographic projection of the filter units on the substrate base plate covers and extends the orthographic projection of the non-light-transmitting layers of the corresponding light-emitting units on the substrate base plate; at least one of the adjacent light filtering units has at least different thickness in the first cross section and/or the adjacent light filtering units has different thickness in the first cross section, and the first cross section is a cross section passing through the edge of the non-light-transmitting layer and perpendicular to the substrate. Since the gap between two adjacent non-light-transmitting layers is easy to diffract external light, diffraction fringes are formed on the photosensitive surface of the photosensitive element integrated under the first display area of the display panel, and the fringe brightness of the diffraction light at the edge of the gap with the optical path difference of 0 to the photosensitive surface is the strongest, so that the 0-level fringes affect the photosensitive effect of the photosensitive element to a great extent. The light filtering units have refractive indexes different from those of other layers, and the light filtering units with different thicknesses can bring extra optical path difference, so that at least the thicknesses of at least one of the adjacent light filtering units on the first section are different and/or the thicknesses of the adjacent light filtering units on the first section are different, wherein the first section is a section which passes through the edge of the non-light-transmitting layer and is perpendicular to the substrate, so that the optical path difference of the diffracted light of two adjacent edges of two adjacent non-light-transmitting layers reaching the original 0-level stripe is changed due to the thickness of the light filtering units, the optical path difference is not 0, the light intensity of the original 0-level stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings in which like or similar reference characters refer to like or similar parts and which are not necessarily drawn to scale.
FIG. 1 shows a schematic top view of a display panel according to an embodiment of the invention;
FIG. 2 shows a cross-sectional view of one embodiment in the direction M-M of FIG. 1;
FIG. 3 illustrates a schematic top view of one embodiment of region E of FIG. 2;
FIG. 4 shows a cross-sectional view in the direction S-S of FIG. 3;
FIG. 5 is a cross-sectional view showing an example of the direction N-N in FIG. 3;
FIG. 6 is a cross-sectional view showing another example of the direction N-N in FIG. 3;
FIG. 7 shows a schematic top view of another embodiment of region E in FIG. 2;
FIG. 8 shows a cross-sectional view S-S of FIG. 7;
FIG. 9 is a cross-sectional view showing an example of the direction N-N in FIG. 7;
FIG. 10 is a cross-sectional view showing another example of the direction N-N in FIG. 7;
FIG. 11 shows a schematic top view of yet another embodiment of region E of FIG. 2;
FIG. 12 shows a cross-sectional view S-S of FIG. 11;
FIG. 13 is a cross-sectional view showing an example of the cross-section in the direction N-N in FIG. 11;
FIG. 14 is a cross-sectional view showing another example of the direction N-N in FIG. 11;
FIG. 15 shows a cross-sectional view of another embodiment of the device of FIG. 1 in the direction M-M;
fig. 16 shows a partial schematic view of a cross-sectional view of the display panel of fig. 15 along a first cross-section.
In the figure:
10-a display panel;
100-substrate base plate;
200-a light emitting layer; 210-a light emitting unit; 211-a non-light transmitting layer;
300-a color filter layer; 310-a filtering unit; 311-a first region; 312 — a second region;
AA 1-first display area; AA 2-second display area; PDL-pixel defining layer; SPC-barrier SS-first cross section; q1-first curved surface; q2-second curved surface; x1-first inclined plane; x2-second oblique plane.
Detailed Description
Features of various aspects and exemplary embodiments 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 described in further 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 should be noted that, in this document, relational terms such as first and second, and the like are 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, fig. 1 is a schematic top view illustrating a display panel according to an embodiment of the invention.
The embodiment of the invention provides a display panel 10, which has a first display area AA1 and a second display area AA2, wherein the pixel density of the first display area AA1 is less than that of the second display area AA 2. The first display area AA1 includes a plurality of first pixel units, each of which has a light-transmitting region therebetween, and the first display area AA1 can be reused as a reserved region of the photosensitive element, so that external light can reach the photosensitive element 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 area AA1 is greater than that of the second display area AA 2.
Herein, the light transmittance of the optional 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 of red, green and blue (RGB) cycle arrangement, a triangular distribution of red, green and blue offset arrangement, 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 also to FIG. 2, FIG. 2 is a cross-sectional view of one embodiment taken along line M-M of FIG. 1.
The display panel 10 includes a substrate 100 and a light emitting layer 200 on 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 100 may further include an inorganic material layer, such as a silicon oxide layer and a silicon nitride layer. The inorganic material layer may block the penetration of water or oxygen.
The light emitting layer 200 includes a plurality of light emitting cells 210 arranged at intervals. The light emitting units 210 of the light emitting layer 200 may be arranged in an array, for example, the light emitting units 210 are spaced along a first direction X and spaced along a second direction Y as shown in fig. 1. The light emitting unit 210 includes a non-light transmissive layer 211.
The light emitting layer 200 may include a light emitting unit 210 capable of emitting red light, a light emitting unit 210 of green light, and a light emitting unit 210 of blue light. Two adjacent light emitting units 210 may emit light of different colors. Or two adjacent light-emitting units 210 may emit light of the same color. It is understood that the light emitting unit 210 in the light emitting layer 200 may not be limited to red, green, blue, but may be yellow or other colors.
The display panel 10 may further include a pixel defining layer PDL on the substrate base 100. The pixel defining layer PDL has a plurality of openings arranged in an array. The light emitting unit 210 is disposed in the opening of the pixel defining layer PDL. Specifically, the light emitting units 210 are disposed in one-to-one correspondence with the openings. The pixel defining layer PDL may be a transparent material.
Specifically, the light emitting unit 210 may include a first electrode layer, a light emitting structure layer on a side of the first electrode layer away from the substrate, and a second electrode layer on a side of the light emitting structure layer away from the substrate. The light emitting structure layer may include a light emitting material layer.
Wherein the first electrode layer is an anode layer. The first electrode layer may be a reflective electrode, and includes a first light-transmitting conductive layer, a reflective layer on the first light-transmitting conductive layer, and a second light-transmitting conductive layer on the reflective layer. The first and second light-transmitting conductive layers may be Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), etc., and the reflective layer may be a metal layer, such as a silver layer. The light emitting material layer may be an OLED light emitting material layer. The light emitting structure layer 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 second electrode layer is a cathode layer. The second electrode layer may be a light-transmitting electrode. In some embodiments, the second electrode layer comprises a layer of indium tin oxide or indium zinc oxide.
The first electrode layer may be non-light transmissive. Specifically, the first electrode layer is the non-light-transmitting layer 211.
In the first display area AA1, the color filter layer 300 is disposed on the light-emitting layer 200. It is to be understood that a color filter layer may be disposed on the light emitting layer 200 of the second display area AA 2.
The color filter layer 300 includes a plurality of filter units 310. The filtering unit 310 may include a filter that allows a single color light to pass through and absorbs other color lights. Specifically, the color filter layer 300 may include a red filter unit 310, a green filter unit 310, and a blue filter unit 310. The filter cells 310 are spaced apart by a barrier layer SPC. The barrier layer SPC may be a black material. Or the barrier layer SPC may be a transparent material. It is to be understood that the color filter layer 300 may not be limited to red, green, blue, but may also be yellow or other colors.
In a direction perpendicular to the plane of the substrate 100, the color of the filtering unit 310 is the same as the color of the light emitted from the overlapped light-emitting units 210, and the orthographic projection of the filtering unit 310 on the substrate 100 covers and extends the orthographic projection of the non-light-transmitting layer 211 of the corresponding light-emitting unit 210 on the substrate 100. For example, the red filter unit 310 overlaps the red light emitting unit 210, the green filter unit 310 overlaps the green light emitting unit 210, and the blue filter unit 310 overlaps the blue light emitting unit 210. The light emitting direction of the light emitting unit 210 faces the filtering unit 310. The color of the filtering unit 310 is the same as the color of the light emitted from the overlapped light emitting units 210 so that the filtering unit 310 does not affect the emitted color light of the light emitting units 210 to pass through. In addition, the filter unit 310 can pass light of the same color as the filter unit 310 in the external light and absorb light of other colors, so that the intensity of the external light passing through the filter unit 310 can be reduced, the reflected light of the external light on the electrode layer can be weakened, and the display effect of the display panel can be improved.
The cross section passing through the edge of the non-light-transmitting layer 211 and perpendicular to the substrate 100 is a first cross section SS. At least one of the adjacent filter units 310 has a different thickness in the first cross section SS and/or the adjacent filter units 310 have a different thickness in the first cross section SS.
According to the display panel 10 of the embodiment of the invention, in the first display area AA1, the light emitting layer 200 is provided with the color filter layer 300, the color filter layer 300 includes a plurality of filter units 310, in a direction perpendicular to the plane of the substrate 100, the color of the filter units 310 is the same as the color of the light emitted by the overlapped light emitting units 210, and the orthographic projection of the filter units 310 on the substrate 100 covers and extends the orthographic projection of the non-light-transmitting layer 211 corresponding to the light emitting units 210 on the substrate 100; at least one of the adjacent filter units 310 has a different thickness in the first cross section SS and/or the adjacent filter units 310 have a different thickness in the first cross section SS, where the first cross section SS is a cross section passing through the edge of the non-light-transmissive layer 211 and perpendicular to the substrate 100. Since the gap between two adjacent non-light-transmitting layers 211 is easy to diffract the external light, a diffraction stripe is formed on the photosensitive surface of the photosensitive element integrated under the first display area AA1 of the display panel 10, and the stripe (0-level stripe) with the optical path difference from the diffracted light at the edge of the gap to the photosensitive surface being 0 has the strongest brightness, so that the 0-level stripe greatly affects the photosensitive effect of the photosensitive element.
The filter units 310 have refractive indexes different from those of other layers, and the filter units 310 with different thicknesses can bring extra optical path differences, so that the optical path differences of the diffracted light rays at the two adjacent edges of the two adjacent non-light-transmitting layers 211 reaching the original 0-level stripe are changed due to the different thicknesses of the filter units 310 through the fact that at least one of the adjacent filter units 310 has different thicknesses in the first cross section SS and/or the adjacent filter units have different thicknesses in the first cross section SS, so that the optical path differences are not 0, the light intensity at the original 0-level stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.
Specifically, the external light is diffracted at the adjacent edges of the adjacent two non-light-transmitting layers 211 after passing through the adjacent two light filtering units 310, and a 0-order stripe is formed at a point K (not shown) on the light sensing surface of the light sensing element, where the 0-order stripe is formed under the condition that the optical path difference to the point K is 0. When the thicknesses of the adjacent edges of the two adjacent filter units 310 corresponding to the non-transparent layer 211 are both d1, the optical path lengths reaching the point K are both n1d1+ n2L (where n1 is the refractive index of the filter unit 310, and n2 is the refractive index of the medium layer), and then the optical path length difference reaching the point K is 0, so that a 0-level stripe with the strongest brightness is formed. When the thicknesses of the adjacent edges of the two adjacent filter units 310 corresponding to the non-light-transmitting layer 211 are different, for example, one is D1, the other is D2, and D2 is greater than D1, the optical path difference D reaching the point K is (n 1D2+ n 2L) - (n 1D1+ n 2L), and since D2 is greater than D1, the optical path difference D reaching the point K is not 0, so that the light intensity at the original 0-level stripe (point K) is weakened, and the light sensing effect of the light sensing element is correspondingly improved.
In some alternative embodiments, the edge line of non-light transmissive layer 211 comprises at least one straight line segment and/or at least one curved line segment. Specifically, the shape of the non-light-transmitting layer 211 includes at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, and a rectangle. In an example where the non-light transmissive layer 211 is circular or elliptical, the edge line of the non-light transmissive layer 211 may include only a curved line segment. In an example where the non-light-transmitting layer 211 is rectangular, the edge line of the non-light-transmitting layer 211 may include four straight line segments connected end to end in sequence. It is understood that the non-transparent layer 211 may also be other polygonal shapes, such as triangular, pentagonal, hexagonal, etc. The corners of the polygonal non-light-transmissive layer 211 may be rounded off. In an example where the non-light-transmitting layer 211 is dumbbell-shaped, the edge line of the non-light-transmitting layer 211 may include two straight line segments and two curved line segments, and the straight line segments and the curved line segments are sequentially connected end to end alternately. In an example where the non-transparent layer 211 is gourd-shaped, the edge line of the non-transparent layer 211 may include two curved segments, and the two curved segments are connected end to end in sequence.
The shape of the orthographic projection of the light emitting unit 210 on the base substrate 100 may be the same as the shape of the non-light-transmitting layer 211. Alternatively, the orthographic projection of the light emitting unit 210 on the base substrate 100 overlaps with the orthographic projection of the non-light-transmitting layer 211 on the base substrate 100.
Adjacent non-light-transmitting layers 211 may have different shapes. For example, one of the two adjacent non-light-transmitting layers 211 is rectangular and the other is circular. In this way, the shape of the region between two adjacent non-light-transmitting layers 211 is irregular or irregular, and the diffraction effect caused by the non-light-transmitting layers 211 arranged in an array is reduced.
The shape of the orthographic projection of the filter unit 310 on the substrate base plate 100 may be the same as the shape of the non-light-transmitting layer 211. The shape of the orthographic projection of the filter unit 310 on the base substrate 100 may be different from the shape of the non-light-transmitting layer 211.
In some alternative embodiments, at least one of the adjacent filter units 310 has at least a different thickness in the first cross section SS. Specifically, there is a difference in the thickness of one of the adjacent filter units 310 in the first cross section SS, that is, the thickness of the filter unit 310 in the first cross section SS varies along the edge line of the non-light-transmissive layer 211. In some examples, the thickness of the other of the adjacent filter units 310 in the first cross section SS may be the same, i.e., uniform. In other examples, the thickness of another of the adjacent filter cells 310 in the first cross-section SS may also be different.
One of the adjacent filter units 310 has a different thickness in the first cross section SS, and the other one has a uniform thickness in the first cross section SS. The optical path difference of the diffracted light rays of the two adjacent edges of the non-light-transmitting layer 211 corresponding to the adjacent light filtering units 310 reaching the original 0-level stripe is changed due to the thickness change of one of the light filtering units 310, so that the optical path difference is not 0, the light intensity of the original 0-level stripe is weakened, and the light sensing effect of the light sensing element is correspondingly improved.
Referring to fig. 3 and 4 together, fig. 3 is a schematic top view of an embodiment of a region E in fig. 2, and fig. 4 is a cross-sectional view taken along S-S in fig. 3.
Further, the filter unit 310 in which the thickness of the first cross-section SS is different includes a first region 311 and a second region 312 disposed around the first region 311. The shape of the orthographic projection of the first region 311 on the substrate 100 may be the same as the shape of the orthographic projection of the filter unit 310 on the substrate 100, but the size of the orthographic projection of the first region 311 on the substrate 100 is different from the size of the orthographic projection of the filter unit 310 on the substrate 100, that is, the orthographic projection of the first region 311 on the substrate 100 is covered and extended by the filter unit 310 on the substrate 100. The filter unit 310 in the second region 312 has a non-uniform thickness. Specifically, the thickness of the second region 312 is set to decrease from the edge intersecting the first region 311 in a direction away from the first region 311. Such that the thickness of the second region 312 at the edge remote from the first region 311 is less than the thickness at the edge of the first region 311. The orthographic projection of the second region 312 on the base substrate 100 covers the orthographic projection of the edge line of the corresponding non-light-transmitting layer 211 on the base substrate 100. An orthogonal projection of the light-non-transmissive layer 211 on the base substrate 100 covers an orthogonal projection of the first region 311 on the base substrate 100. Thus, the edge line of the non-light-transmitting layer 211 is disposed corresponding to the second region 312 having a non-uniform thickness, and the cross section passing through the edge of the non-light-transmitting layer 211 and perpendicular to the substrate 100 is the first cross section SS, so that the thickness of the filter unit 310 in the first cross section SS is different.
Referring to fig. 5 and 6 together, fig. 5 is a cross-sectional view illustrating an example of the direction N-N of fig. 3, and fig. 6 is a cross-sectional view illustrating another example of the direction N-N of fig. 3.
In some alternative embodiments, the side of the second region 312 facing away from the light-emitting layer 200 is the first curved surface Q1. Illustratively, the edge of the first curved surface Q1 intersecting the first region 311 is rounded, and the edge of the first curved surface Q1 away from the first region 311 is rounded. The first curved surface Q1 may be a spherical annular surface. Optionally, the side of the second region 312 close to the light-emitting layer 200 is a plane, and further, the plane may be substantially parallel to the substrate 100.
In the present embodiment, the shape of the non-light-transmitting layer 211 may be rectangular, for example. An orthogonal projection of the rectangular edge of the light-non-transmissive layer 211 on the base substrate 100 is located between orthogonal projections of the two circular edges of the first curved surface Q1 on the base substrate 100. So that the thickness of the filter unit 310 in the first section SS is different.
In some further embodiments, as shown in fig. 5, the side of the second curved surface Q2 facing away from the light emitting layer 200 is a second curved surface Q2. The second curved surface Q2 is spherical crown shaped and has a rounded edge. The first curved surface Q1 and the second curved surface Q2 combine to be a spherical crown surface. The first and second regions 311 and 312 of the filter unit 310 may be integrally constructed.
In still further embodiments, as shown in fig. 6, the filtering unit 310 has a uniform thickness corresponding to the first region 311. That is, the side of the first region 311 facing away from the light emitting layer 200 may be a plane, and the plane is substantially parallel to the side of the filter unit 310 facing the light emitting layer 200. Since the first region 311 does not intersect with the first cross section SS, the thickness of the filter unit 310 corresponding to the first region 311 is uniform, so that the overall thickness of the filter unit 310 can be reduced, and the thickness of the display panel 10 can be reduced, so that the display panel 10 is thinner and lighter, and the application range is wider.
Referring to fig. 7 and 8, and fig. 11 and 12, fig. 7 is a schematic top view of another embodiment of the area E in fig. 2, and fig. 8 is a cross-sectional view taken along S-S direction in fig. 7; fig. 11 shows a schematic top view of a further embodiment of the region E in fig. 2, and fig. 12 shows a cross-sectional view S-S in fig. 11.
In some alternative embodiments, the side of the second region 312 facing away from the light-emitting layer 200 includes a plurality of first inclined planes X1, and the plane of the first inclined planes X1 intersects with the plane of the substrate base plate 100. Illustratively, the edge of the second region 312 intersecting the first region 311 is rectangular, and the edge of the second region 312 away from the first region 311 is rectangular. The first inclined plane X1 is substantially trapezoidal. The oblique sides of the plurality of first oblique planes X1 are connected in sequence. Alternatively, the side of the second region 312 close to the light-emitting layer 200 is a plane, and further, the plane may be substantially parallel to the substrate base plate 100.
In the present embodiment, as shown in fig. 7 and 8, the shape of the light-non-transmissive layer 211 may be rectangular in some specific examples. The orthographic projection of the rectangular edge of the non-light-transmitting layer 211 on the substrate base plate 100 is located between the orthographic projections of the two rectangular edges of the second region 312 on the substrate base plate 100. Any one side of the orthographic projection of the rectangular edge of the non-light-transmissive layer 211 on the substrate base plate 100 is not parallel to any one side of the orthographic projection of the two rectangular edges of the second region 312 on the substrate base plate 100. In other specific examples, as shown in fig. 11 and 12, the shape of the non-light-transmissive layer 211 may be a circle. The orthographic projection of the circular edge of the non-light-transmissive layer 211 on the substrate base plate 100 is located between the orthographic projections of the two rectangular edges of the second region 312 on the substrate base plate 100. In this way, it is possible to make the thickness of the filter unit 310 in the first cross section SS different.
Referring to fig. 9 and 10 together with fig. 13 and 14, fig. 9 is a cross-sectional view of an example of the direction N-N of fig. 7, and fig. 10 is a cross-sectional view of another example of the direction N-N of fig. 7; fig. 13 is a cross-sectional view showing an example of the direction N-N in fig. 11, and fig. 14 is a cross-sectional view showing another example of the direction N-N in fig. 11.
In some further embodiments, as shown in fig. 9 and 13, the side of the first region 311 facing away from the light emitting layer 200 comprises a plurality of second inclined planes X2. The second oblique planes X2 may be triangular, and oblique sides of the plurality of second oblique planes X2 in the side of the first region 311 facing away from the light-emitting layer 200 may be sequentially connected. The plurality of first inclined planes X1 and the plurality of second inclined planes X2 are combined as surfaces of a plurality of sides of the pyramid structure.
In still further embodiments, as shown in fig. 10 and 14, the filtering unit 310 has a uniform thickness corresponding to the first region 311. That is, the side of the first region 311 facing away from the light emitting layer 200 may be a plane, and the plane is substantially parallel to the side of the filter unit 310 facing the light emitting layer 200. Since the first region 311 is not intersected with the first cross section SS, the thickness of the filter unit 310 corresponding to the first region 311 is uniform, so that the overall thickness of the filter unit 310 can be reduced, the thickness of the display panel 10 can be reduced, the display panel 10 is thinner and lighter, and the application range is wider.
Alternatively, in an embodiment where the non-light-transmissive layer 211 is rectangular, one of the adjacent filter units 310 may be a filter unit 310 including a first curved surface Q1, and the other may be a filter unit 310 including a plurality of first inclined planes X1.
The thicknesses of the two adjacent filter units 310 in the first cross section SS are different, and the optical path difference between points of the two filter units 310 along the first cross section SS is different due to the different change rules of the thicknesses of the two filter units 310 in the first cross section SS. Thus, the optical path difference of the diffracted light rays of two adjacent edges of the two non-light-transmitting layers 211 corresponding to the two light filtering units 310 reaching the original 0-level stripe can be changed due to the thickness change of one of the light filtering units 310, so that the optical path difference is not 0, the light intensity of the original 0-level stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.
Referring to fig. 15 and 16 together, fig. 15 is a cross-sectional view of another embodiment along the direction M-M in fig. 1, and fig. 16 is a partial schematic view of a cross-sectional view of the display panel of fig. 15 along a first cross-section.
In some alternative embodiments, the thicknesses of the adjacent filter units 310 in the first cross section SS are different, and the thicknesses of the adjacent filter units 310 in the first cross section SS are different. Further, the average value of the thicknesses of the filter cells 310 in the first cross-section SS is different from the average value of the thicknesses of the adjacent filter cells 310 in the first cross-section SS. Therefore, the optical path difference between points of the two filter units 310 along the first cross section SS can be ensured to be different, so that the optical path difference of the two adjacent edges of the non-light-transmitting layer 211, corresponding to the two filter units 310, of the diffracted light reaching the original 0-level stripe is changed due to the thickness change of one filter unit 310, so that the optical path difference is not 0, the light intensity of the original 0-level stripe is further weakened, and the photosensitive effect of the photosensitive element is correspondingly improved. Further, the minimum value of the thickness of the filter unit 310 in the first cross section SS is greater than the maximum value of the thickness of the adjacent filter unit 310 in the first cross section SS.
Exemplarily, as shown in fig. 15 and 16, in an embodiment in which the shape of the non-light-transmissive layer 211 is a rectangle, the adjacent filter units 310 are each a filter unit 310 including a first curved surface Q1. The distance from the intersecting circular edge of the first curved surface Q1 of the first one of the adjacent filter cells 310 and the first region 311 to the substrate base plate 100 is greater than the distance from the intersecting circular edge of the first curved surface Q1 of the second one of the adjacent filter cells 310 and the first region 311 to the substrate base plate 100. And, the distance from the first curved surface Q1 of the first one of the adjacent filter cells 310 to the substrate base plate 100 away from the circular edge of the first region 311 is greater than the distance from the first curved surface Q1 of the second one of the adjacent filter cells 310 to the substrate base plate 100 away from the circular edge of the first region 311. The curvatures of the first curved surfaces Q1 of the adjacent filter units 310 are substantially the same. The distances from the surfaces of the two adjacent filter units 310 adjacent to the substrate base plate 100 are substantially the same. Such that the thickness of a first one of the adjacent filter units 310 at the first cross section SS is greater than the thickness of the first one at the first cross section SS. The thicknesses of the two adjacent light filtering units 310 on the first cross section SS are different, so that the optical path difference between the diffracted light rays at the two adjacent edges of the two non-light-transmitting layers 211 reaching the original 0-level stripe is not 0, the light intensity at the original 0-level stripe is weakened, and the photosensitive effect of the photosensitive element is correspondingly improved.
In some alternative embodiments, the thickness of each filter unit 310 in the first cross section SS is uniform, and the thickness of adjacent filter units 310 in the first cross section SS is different. Alternatively, each of the filter units 310 is uniform in thickness perpendicular to the base substrate 100. The optical path difference between the diffracted light rays of two adjacent edges of two non-light-transmitting layers 211 corresponding to two adjacent light filtering units 310 reaching the original 0-level stripe is not 0, so that the light intensity of the original 0-level stripe is 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. I.e., the photosensitive elements are located on the second surface side of the display panel 10, the photosensitive elements correspond to the first display area AA1 in position.
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 (15)
1. A display panel having a first display region and a second display region, the first display region having a pixel density smaller than that of the second display region, the display panel comprising:
a base substrate;
the light-emitting layer is positioned on the substrate and comprises a plurality of light-emitting units which are arranged at intervals, and each light-emitting unit comprises a non-light-transmitting layer;
in the first display area, a color filter layer is arranged on the light-emitting layer, the color filter layer comprises a barrier layer and a plurality of filter units, the color of the filter units is the same as the color of the light emitted by the overlapped light-emitting units in the direction perpendicular to the plane of the substrate base plate, and the orthographic projection of the filter units on the substrate base plate covers and extends to form the orthographic projection of the non-light-transmitting layers corresponding to the light-emitting units on the substrate base plate;
at least one of the adjacent light filtering units has different thickness on a first cross section, and the adjacent light filtering units have different thickness on the first cross section, the first cross section is a cross section which passes through the edge of the non-light-transmitting layer and is vertical to the substrate, and the light filtering units are arranged in light-transmitting areas formed at intervals by the barrier layers.
2. The display panel according to claim 1, wherein the filter unit includes a first region and a second region provided around the first region, the filter unit in the second region has a non-uniform thickness, and an orthogonal projection of the second region on the substrate covers an orthogonal projection of an edge line corresponding to the non-light-transmissive layer on the substrate.
3. The display panel according to claim 2, wherein the second region has a thickness that decreases from an edge intersecting the first region in a direction away from the first region.
4. The display panel according to claim 2, wherein a side of the second region facing away from the light emitting layer is a first curved surface.
5. The display panel according to claim 4, wherein a side of the first region facing away from the light emitting layer is a second curved surface, and the first curved surface and the second curved surface are combined to form a spherical crown surface.
6. The display panel according to claim 2, wherein the side of the second region facing away from the light-emitting layer comprises a plurality of first inclined planes, and the plane of the first inclined planes intersects with the plane of the substrate base plate.
7. The display panel according to claim 6, wherein a side of the first region facing away from the light-emitting layer comprises a plurality of second inclined planes, and the plurality of first inclined planes and the plurality of second inclined planes are combined into a surface of a plurality of sides of a pyramid structure.
8. The display panel according to claim 2, wherein the filter unit has a uniform thickness corresponding to the first region.
9. The display panel according to claim 1, wherein the edge line of the non-light-transmissive layer comprises at least one straight line segment and/or at least one curved line segment.
10. The display panel according to claim 1, wherein the shape of the non-light-transmissive layer comprises at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, and a rectangle.
11. The display panel according to claim 1, wherein an average value of the thickness of the filter unit at the first cross section is different from an average value of the thickness of the adjacent filter unit at the first cross section.
12. The display panel according to claim 11, wherein a minimum value of the thickness of the filter unit in the first cross section is larger than a maximum value of the thickness of the adjacent filter unit in the first cross section.
13. A display device characterized by comprising the display panel according to any one of claims 1 to 12.
14. The display device according to claim 13, further comprising a photosensitive element, wherein the photosensitive element is disposed in the first display region and is located on a side of the substrate base plate facing away from the light-emitting layer.
15. The display device according to claim 14, wherein the light sensor comprises one or more of a camera module, a light sensor, and an ultrasonic distance sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001444.2A CN111162109B (en) | 2020-01-02 | 2020-01-02 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001444.2A CN111162109B (en) | 2020-01-02 | 2020-01-02 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111162109A CN111162109A (en) | 2020-05-15 |
| CN111162109B true CN111162109B (en) | 2022-07-26 |
Family
ID=70561152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010001444.2A Active CN111162109B (en) | 2020-01-02 | 2020-01-02 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111162109B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809258B (en) * | 2020-06-17 | 2023-04-18 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111799311B (en) * | 2020-07-14 | 2022-07-01 | 京东方科技集团股份有限公司 | Display substrate, preparation method thereof and display device |
| CN112490269A (en) * | 2020-11-26 | 2021-03-12 | Oppo广东移动通信有限公司 | Display assembly, flexible display assembly and display device |
| CN112687727B (en) * | 2020-12-25 | 2022-10-18 | 厦门天马微电子有限公司 | Display panel and display device |
| CN113540192B (en) * | 2021-06-30 | 2023-02-24 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113782574B (en) * | 2021-09-10 | 2023-01-24 | 武汉华星光电半导体显示技术有限公司 | Display panel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106463080A (en) * | 2014-06-13 | 2017-02-22 | 株式会社半导体能源研究所 | Display device |
| CN106601769A (en) * | 2015-10-16 | 2017-04-26 | 乐金显示有限公司 | Organic light emitting display device |
| CN106681042A (en) * | 2017-01-05 | 2017-05-17 | 京东方科技集团股份有限公司 | Touch display screen and manufacturing method thereof and touch display device |
| CN106773260A (en) * | 2017-01-04 | 2017-05-31 | 京东方科技集团股份有限公司 | Display panel, display device, color membrane substrates and array base palte |
| CN108447895A (en) * | 2018-05-21 | 2018-08-24 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| EP3565002A1 (en) * | 2016-12-29 | 2019-11-06 | Boe Technology Group Co. Ltd. | Display substrate and method for manufacturing same, and display panel |
| CN110534551A (en) * | 2019-08-30 | 2019-12-03 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102393319B1 (en) * | 2017-07-04 | 2022-05-02 | 삼성디스플레이 주식회사 | Organic light emitting display device |
-
2020
- 2020-01-02 CN CN202010001444.2A patent/CN111162109B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106463080A (en) * | 2014-06-13 | 2017-02-22 | 株式会社半导体能源研究所 | Display device |
| CN106601769A (en) * | 2015-10-16 | 2017-04-26 | 乐金显示有限公司 | Organic light emitting display device |
| EP3565002A1 (en) * | 2016-12-29 | 2019-11-06 | Boe Technology Group Co. Ltd. | Display substrate and method for manufacturing same, and display panel |
| CN106773260A (en) * | 2017-01-04 | 2017-05-31 | 京东方科技集团股份有限公司 | Display panel, display device, color membrane substrates and array base palte |
| CN106681042A (en) * | 2017-01-05 | 2017-05-17 | 京东方科技集团股份有限公司 | Touch display screen and manufacturing method thereof and touch display device |
| CN108447895A (en) * | 2018-05-21 | 2018-08-24 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110534551A (en) * | 2019-08-30 | 2019-12-03 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111162109A (en) | 2020-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111162109B (en) | Display panel and display device | |
| JP7156808B2 (en) | Display device with input detection unit | |
| CN110767694B (en) | Array substrate, display panel and display device | |
| KR102655476B1 (en) | Organic light emitting diode display device | |
| JP2022553513A (en) | Pixel array optimization method, translucent display panel and display panel | |
| CN110286514B (en) | Display panel and display device | |
| CN110767703B (en) | Array substrate, display panel and display device | |
| CN113394351B (en) | Display panel and display device | |
| US11825669B2 (en) | Electroluminescent device | |
| CN111092109B (en) | Display panel and display device | |
| CN110890412A (en) | Display panel and display device | |
| US20230157062A1 (en) | Display panel and display device | |
| CN114625264A (en) | Display device | |
| US20230376137A1 (en) | Display device and method of manufacturing the same | |
| CN111427183B (en) | Display panel and display device | |
| CN113725259A (en) | Display device | |
| WO2020137856A1 (en) | Lighting device and reflective display device | |
| CN115623817A (en) | Display module and display device | |
| WO2021238138A1 (en) | Sensor, display panel, and display apparatus | |
| CN115377320A (en) | Display panel and display device | |
| CN114864847A (en) | Display panel and display terminal | |
| CN114995680A (en) | Display device | |
| CN113644218A (en) | Display panel and display device | |
| KR20220006667A (en) | Display device | |
| US11569299B2 (en) | Display device including light-emitting portions having opposing angle directions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |