CN114335126A - Display panel and display device - Google Patents
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- CN114335126A CN114335126A CN202111676471.0A CN202111676471A CN114335126A CN 114335126 A CN114335126 A CN 114335126A CN 202111676471 A CN202111676471 A CN 202111676471A CN 114335126 A CN114335126 A CN 114335126A
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Abstract
The invention provides a display panel and a display device, wherein the thickness of a first color resistance and a second color group with the same color in a first display area and a second display area is adjusted, so that the thickness of the first color resistance is larger than that of the second color resistance, external light can more easily penetrate through the second color group to provide a good imaging environment for an imaging module, the light emitting efficiency of a light emitting unit in the second display area is higher, under the condition that the second display area and the first display area realize the same brightness, a larger current is not needed to drive the light emitting unit in the second display area, the light emitting service life of the light emitting unit in the second display area is further improved, the reflectivity of a metal layer in the second display area to the external light is reduced by adjusting the distance between a light shielding structure and a pixel opening in the first display area and the second display area, and the difference of the reflectivity of the first display area and the second display area is further balanced, eliminating differential display appearing in different areas of the display panel.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the continuous development of science and technology, various display devices have been widely applied to the life and work of people, and bring great convenience to the daily life of people.
The display panel is one of the important components of the display device, and the structural design of the display panel directly or indirectly affects the display effect of the display device.
With the increase of diversified use demands of users on display devices and the emergence of design requirements of high screen occupation ratio of display devices, a design of embedding imaging modules such as a camera in a display area is currently available, so as to reduce the size of a frame area of the display device.
However, the design of the camera under the screen is adopted, on the basis of improving the screen occupation ratio of the display device, higher requirements are provided for the light transmittance at the position where the imaging module is arranged in the display panel, and on the basis, the reflectivity at the position where the imaging module is arranged in the display panel is different from the reflectivity at the position where the imaging module is not arranged, so that the display device can display in a differentiated mode.
Disclosure of Invention
In view of the above, to solve the above problems, the present invention provides a display panel and a display device, and the technical solution is as follows:
a display panel, comprising: the display device comprises a first display area and a second display area, wherein the first display area at least partially surrounds the second display area;
a substrate;
a pixel defining layer on one side of the substrate, the pixel defining layer including a pixel defining structure and a pixel opening;
the color resistance structure is positioned on one side of the pixel defining layer, which is far away from the substrate, and the color resistance structure is arranged corresponding to the pixel opening; the color resistance structure comprises a first color resistance positioned in the first display area and a second color resistance positioned in the second display area, the thickness of the first color resistance is D1, the thickness of the second color resistance is D2, D1 is more than D2, and the colors of the first color resistance and the second color resistance are the same;
the shading structure is positioned on one side of the pixel defining layer, which is far away from the substrate, and the shading structure and the pixel defining structure are at least partially overlapped;
the pixel definition structure comprises a first pixel definition structure positioned in the first display area and a second pixel definition structure positioned in the second display area, and the shading structure comprises a first shading structure corresponding to the first pixel definition structure and a second shading structure corresponding to the second pixel definition structure;
a minimum distance between an orthographic projection edge of the first light shielding structure on the substrate and an orthographic projection edge of the first pixel defining structure on the substrate is L1;
the minimum distance between the orthographic projection edge of the second light shielding structure on the substrate and the orthographic projection edge of the second pixel defining structure on the substrate is L2, and L1 is more than L2;
the pixel opening comprises a first pixel opening positioned in the first display area and a second pixel opening positioned in the second display area, the first pixel opening corresponds to the first color resistor and the first pixel definition structure, and the second pixel opening corresponds to the second color resistor and the second pixel definition structure.
A display device comprises the display panel.
Compared with the prior art, the invention has the following beneficial effects:
according to the display panel provided by the invention, the thickness of the first color resistor and the thickness of the second color group in the first display area and the second display area are adjusted, so that the thickness of the first color resistor is larger than that of the second color resistor, obviously, the blocking degree of the second color resistor to the external light entering the display panel is smaller than that of the first color resistor to the external light entering the display panel, further, the transmittance of the external light penetrating through the second color group is larger than that of the external light penetrating through the first color group, the external light can be more easily incident into the second display area to provide a good imaging environment for the imaging module, and the imaging quality of the imaging module is improved.
In a similar way, the blocking degree of the emergent light of the light-emitting unit in the second display area by the second color group is smaller than that of the emergent light of the light-emitting unit in the first display area by the first color group, so that the light-emitting unit in the second display area is driven without larger current under the condition that the same brightness is realized in the second display area and the first display area, the driving current of the light-emitting unit in the second display area can be effectively reduced, and the light-emitting service life of the light-emitting unit in the second display area is prolonged.
Furthermore, because the blocking degree of the second color resist to the external light entering the display panel is smaller than the blocking degree of the first color resist to the external light entering the display panel, the reflectivity of the metal layer in the second display area to the external light can be obviously increased, and based on the fact that the distance between the second light shielding structure in the second display area and the second pixel opening is pulled to enable the second light shielding structure to be smaller than the distance between the first light shielding structure in the first display area and the first pixel opening, part of the external light can be blocked from entering the second display area to a certain extent, so that the reflectivity of the metal layer in the second display area to the external light can be reduced, the reflectivity difference between the first display area and the second display area can be balanced, and differential display appearing in different areas of the display panel can be eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a first display area according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a second display area according to an embodiment of the present invention;
FIG. 5 is a schematic top view of another display panel according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of another display panel according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a first display area according to another embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a second display area according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of a second display area according to an embodiment of the present invention;
fig. 10 is a schematic cross-sectional view of another display panel according to an embodiment of the invention;
FIG. 11 is a schematic cross-sectional view of a first display area according to another embodiment of the present invention;
FIG. 12 is a schematic cross-sectional view of a second display area according to an embodiment of the present invention;
fig. 13 is a schematic top view illustrating a display panel according to another embodiment of the present invention;
fig. 14 is a schematic cross-sectional view of another display panel according to an embodiment of the invention;
fig. 15 is a schematic cross-sectional view of another display panel according to an embodiment of the invention;
FIG. 16 is a schematic top view illustrating a display panel according to another embodiment of the present invention;
fig. 17 is a schematic view of a second light shielding structure and a second light shielding structure according to an embodiment of the present invention;
fig. 18 is a schematic cross-sectional view of another display panel according to an embodiment of the invention;
fig. 19 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention, where the display panel includes a first display area AA and a second display area BB, and the first display area AA at least partially surrounds the second display area BB, as shown in fig. 1, the first display area AA fully surrounds the second display area BB in the embodiment of the present invention. The first display area AA is a normal display area of the display panel, and the second display area BB is a display area provided with the imaging module.
Referring to fig. 2, fig. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.
The display panel includes:
a substrate 11, a pixel defining layer 12 on one side of the substrate 11, the pixel defining layer 12 including a pixel defining structure 121 and a pixel opening 122.
And the color resistance structure 13 is positioned on one side of the pixel defining layer 12 away from the substrate 11, and the color resistance structure 13 is arranged corresponding to the pixel opening 122.
The color-resisting structure 13 is arranged corresponding to the pixel opening 122, that is, the orthographic projection of the color-resisting structure 13 on the substrate 11 at least completely covers the orthographic projection of the pixel opening 122 on the substrate 11, and the orthographic projection area of the color-resisting structure 13 on the substrate 11 is larger than that of the pixel opening 122 on the substrate 11.
It should be noted that other functional film layers 01 exist between the color resistance structure 13 and the pixel defining layer 12, and specific film layers of the other functional film layers 01 are not shown in fig. 2, which will be described in the following embodiments.
The substrate 11 includes, but is not limited to, a flexible substrate made of an insulating material, and has properties of being stretchable, bendable, or bendable, and the material includes, but is not limited to, a polyimide material (abbreviated as PI), a polycarbonate material (abbreviated as PC), a polyethylene terephthalate material (abbreviated as PET), and the like.
Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a first display area according to an embodiment of the present invention, and fig. 4 is a schematic cross-sectional view of a second display area according to an embodiment of the present invention.
The color resistance structure 13 comprises a first color resistance 131 positioned in the first display area AA and a second color resistance 132 positioned in the second display area BB, wherein the thickness of the first color resistance 131 is D1, the thickness of the second color resistance 132 is D2, D1 > D2, and the colors of the first color resistance 131 and the second color resistance 132 are the same along the direction perpendicular to the substrate.
Specifically, based on the first color resistor 131 and the second color resistor 132 with the same color, since the thickness of the first color resistor 131 is greater than that of the second color resistor 132, it is obvious that the blocking degree of the second color resistor 132 to the external light entering the display panel will be less than the blocking degree of the first color resistor 131 to the external light entering the display panel, and further it can be known that the transmittance of the external light passing through the second color set 132 is greater than the transmittance of the external light passing through the first color set 131, so that the external light can be more easily incident into the second display area to provide a good imaging environment for the imaging module, and the imaging quality of the imaging module is improved.
Similarly, the blocking degree of the second color set 132 to the light emitted from the light emitting unit in the second display area BB is also smaller than the blocking degree of the first color set 131 to the light emitted from the light emitting unit in the first display area AA, so that under the condition that the second display area BB and the first display area AA realize the same brightness, the light emitting unit in the second display area BB is driven without a larger current, that is, the driving current of the light emitting unit in the second display area BB can be effectively reduced, and the light emitting life of the light emitting unit in the second display area BB can be further improved.
As shown in fig. 2, the display panel further includes a light shielding structure 14 located on a side of the pixel defining layer 12 away from the substrate 11, where the light shielding structure 14 at least partially overlaps the pixel defining structure 12, an orthographic projection of the pixel defining layer 12 on the substrate 11 at least completely covers an orthographic projection of the light shielding structure 14 on the substrate 11, and an orthographic projection area of the pixel defining layer 12 on the substrate 11 is larger than an orthographic projection area of the light shielding structure 14 on the substrate 11.
As shown in fig. 3, the pixel defining structure 121 includes a first pixel defining structure 121A located in the first display area AA, and the light shielding structure 14 includes a first light shielding structure 141 corresponding to the first pixel defining structure 121A.
Wherein the light shielding structure 14 includes the first light shielding structure 141 corresponding to the first pixel defining structure 121A, it means that the orthographic projection of the first pixel defining structure 121A on the substrate 11 at least completely covers the orthographic projection of the first light shielding structure 141 on the substrate 11, and it can also be understood that the orthographic projection of the first light shielding structure 141 on the substrate 11 does not overlap with the orthographic projection of the pixel opening 122 on the substrate 11.
As shown in fig. 4, the pixel defining structure 121 includes a second pixel defining structure 121B located in the second display area BB, and the light shielding structure 14 includes a second light shielding structure 142 corresponding to the second pixel defining structure 121B.
Wherein the light shielding structure 14 includes the second light shielding structure 142 corresponding to the second pixel defining structure 121B, it means that the orthographic projection of the second pixel defining structure 121B on the substrate 11 at least completely covers the orthographic projection of the second light shielding structure 142 on the substrate 11, and it can also be understood that the orthographic projection of the second light shielding structure 142 on the substrate 11 does not overlap with the orthographic projection of the pixel opening 122 on the substrate 11.
As shown in fig. 3 and 4, the pixel opening 122 includes a first pixel opening 122A located in the first display area AA and a second pixel opening 122B located in the second display area BB, the first pixel opening 122A corresponds to the first color resistor 131 and the first pixel defining structure 121A, and the second pixel opening 122B corresponds to the second color resistor 132 and the second pixel defining structure 121B.
The correspondence between the first pixel opening 122A and the first color resist 131 and the first pixel defining structure 121A means that the first pixel opening 122A is adjacent to the first pixel defining structure 121A, and the first pixel opening 122A is disposed opposite to the first color set 131, and an orthogonal projection of the first color resist 131 on the substrate 11 at least completely covers an orthogonal projection of the first pixel opening 122A on the substrate 11, and at least partially covers an orthogonal projection of the first pixel defining structure 121A on the substrate 11.
The second pixel opening 122B corresponds to the second color resist 132 and the second pixel defining structure 121B, which means that the second pixel opening 122B is adjacent to the second pixel defining structure 121B, and the second pixel opening 122B is disposed opposite to the second color resist 132, and an orthogonal projection of the second color resist 132 on the substrate 11 at least completely covers an orthogonal projection of the second pixel opening 122B on the substrate 11, and at least partially covers an orthogonal projection of the second pixel defining structure 121B on the substrate 11.
As shown in fig. 3, the minimum distance between the orthographic projection edge of the first light shielding structure 141 on the substrate 11 and the orthographic projection edge of the first pixel defining structure 121A on the substrate 11 is L1.
As shown in fig. 4, the minimum distance between the orthographic projection edge of the second light shielding structure 142 on the substrate 11 and the orthographic projection edge of the second pixel defining structure 121B on the substrate 11 is L2, and L1 > L2.
Further, since the blocking degree of the second color resistor 132 to the external light entering the display panel is less than the blocking degree of the first color resistor 131 to the external light entering the display panel, it is obvious that the reflectivity of the metal layer (e.g., the light emitting unit anode layer) in the second display area BB to the external light is increased, and accordingly, in the embodiment of the present invention, by pulling the distance between the second light shielding structure 142 in the second display area BB and the second pixel opening 122B to be less than the distance between the first light shielding structure 141 in the first display area AA and the first pixel opening 122A, a part of the external light is blocked to enter the second display area BB to a certain degree, so as to reduce the reflectivity of the metal layer in the second display area BB to the external light, further balance the reflectivity difference between the first display area AA and the second display area BB, and eliminate the differential display appearing in different areas of the display panel.
Optionally, in another embodiment of the present invention, referring to fig. 5, fig. 5 is a schematic top view of another display panel provided in the embodiment of the present invention.
The opening size M1 of the first pixel opening 122A is greater than the opening size M2 of the second pixel opening 122B.
It should be noted that the first pixel opening 122A and the second pixel opening 122B are used to place light emitting units of the same light emitting color, for example, a light emitting unit for emitting red light is placed in the first pixel opening 122A, and a light emitting unit for emitting red light is also placed in the second pixel opening 122B.
Specifically, the opening size M1 of the first pixel opening 122A refers to an area of the first pixel opening 122A on which the opening contour is orthographically projected on the substrate 11, and similarly, the opening size M2 of the second pixel opening 122B refers to an area of the second pixel opening 122B on which the opening contour is orthographically projected on the substrate 11.
It should be noted that, in fig. 5, only the shape of the first pixel opening 122A is taken as an example for description, and the shape of the second pixel opening 122B is taken as an example for description, which is not limited in the embodiment of the present invention, and other opening shapes may be used.
In order to meet the requirement of the light transmittance of the second display area BB in the display panel to provide a good imaging environment for the imaging module, in an embodiment of the present invention, the opening size of the pixel opening 122 in the second display area BB is reduced under the condition that the PPI (pixel density) of the first display area AA and the second display area BB is not changed, that is, the opening size of the second pixel opening 122B is smaller than the opening size of the first pixel opening 122A, so that more light-transmitting areas can be disposed in the area outside the second pixel opening 122B, and under the condition that the PPI of the first display area AA and the second display area BB is not changed, the display screen quality of the second display area BB can be ensured, and the problem of the obvious display difference between the first display area AA and the second display area BB can be avoided, so that the display uniformity of the display panel is improved.
Further, in order to satisfy the light transmittance requirement of the second display region BB in the display panel to provide a good imaging environment for the imaging module, in another embodiment of the invention, the PPI of the second display region BB can be reduced, that is, the PPI of the second display region BB is smaller than the PPI of the first display region AA, and further, more light-transmitting regions can be disposed in the region outside the second pixel opening 122B, so that the second display region BB can achieve higher transmittance.
It should be noted that, in general, the aperture ratio of the pixel aperture of the second display area BB is 1/3 to 1/4 of the aperture ratio of the pixel aperture of the first display area AA, and since the aperture size of the second pixel aperture 122B is reduced, that is, the effective light-emitting area of the light-emitting unit located in the second pixel aperture 122B is reduced, and the thickness of the same color resistance located in the first display area AA and the second display area BB along the direction perpendicular to the substrate in the prior art is the same, a larger current is required to drive the light-emitting unit located in the second pixel aperture 122B to achieve the same brightness as the first display area AA, which obviously shortens the light-emitting lifetime of the light-emitting unit located in the second pixel aperture 122B.
In the embodiment of the present invention, along the direction perpendicular to the substrate, since the thickness of the first color resistor 131 in the first color resistor 131 and the second color resistor 132 of the same color is greater than the thickness of the second color resistor 132, it is obvious that the blocking degree of the second color group 132 to the light emitted from the light emitting unit in the second display area BB is also less than the blocking degree of the first color group 131 to the light emitted from the light emitting unit in the first display area AA, so that under the condition that the second display area BB and the first display area AA realize the same brightness, a larger current is not needed to drive the light emitting unit in the second display area BB, that is, the driving current of the light emitting unit in the second display area BB can be effectively reduced, and the light emitting life of the light emitting unit in the second display area BB is further improved.
Optionally, in another embodiment of the present invention, referring to fig. 6, fig. 6 is a schematic cross-sectional view of another display panel provided in the embodiment of the present invention.
The display panel further includes a light emitting unit 15 positioned in the pixel opening 122, the light emitting unit 15 includes an anode layer 151, a light emitting layer 152, and a cathode layer 153, and the plurality of light emitting units 15 share the cathode layer 153.
Referring to fig. 7, fig. 7 is a schematic cross-sectional view of another first display region according to an embodiment of the invention.
The minimum distance between the side of the first light shielding structure 141 facing the substrate 11 and the light emitting surface of the light emitting unit 15 in the direction perpendicular to the substrate 11 is D3.
Referring to fig. 8, fig. 8 is a schematic cross-sectional view of another second display area according to an embodiment of the present invention.
The minimum distance between the side of the second light shielding structure 142 facing the substrate 11 and the light emitting surface of the light emitting unit 15 in the direction perpendicular to the substrate 11 is D4, and D3 > D4.
Specifically, since the blocking degree of the second color resistor 132 to the external light entering the display panel is less than the blocking degree of the first color resistor 131 to the external light entering the display panel, it is obvious to increase the reflectivity of the metal layer (e.g., the light emitting unit anode layer) in the second display area BB to the external light. Based on this, by pulling the distance between the second light-shielding structure 142 and the second pixel opening 122B in the second display area BB to be smaller than the distance between the first light-shielding structure 141 and the first pixel opening 122A in the first display area AA, the size of the second light-shielding structure can be equivalently increased on the premise of ensuring the same visual angle optical effect of the first display area AA and the second display area BB, so that part of the external light is blocked from entering the second display area BB to a certain extent, so as to reduce the reflectivity of the metal layer in the second display area BB to the external light, further balance the reflectivity difference between the first display area AA and the second display area BB, and eliminate the differential display appearing in different areas of the display panel.
Since the distance between the second light shielding structure 142 and the second pixel opening 122B in the second display area BB is shortened, referring to fig. 9, fig. 9 is a schematic cross-sectional view of another second display area provided by the embodiment of the invention, and it is obvious that when D3 and D4 are equal to each other in combination with fig. 7, the light emitting angle of the light emitting unit 15 in the second display area BB after passing through the second light shielding structure 142 is reduced, so that the light emitting angles of the first display area AA and the second display area BB are different, that is, β 1 ≠ β 3, resulting in a difference in display.
Based on this, in the embodiment of the present invention, in conjunction with fig. 7, 8 and 9, in the direction along the vertical substrate, by adjusting the minimum distance D3 between the side of the first light shielding structure 141 facing the substrate 11 and the light emitting surface of the light emitting unit 15, and adjusting the minimum distance D4 between the side of the second light shielding structure 142 facing the substrate 11 and the light emitting surface of the light emitting unit 15, such that D3 > D4, which is equivalent to indirectly increasing the light emitting angle of the light emitting unit 15 in the second display area BB after passing through the second light shielding structure 142 under the condition that D3 > D4 and L1 > L2, that is, the light-emitting angle of the light-emitting unit 15 in the second display area BB after passing through the second light-shielding structure 142 is changed from β 3 to β 2, so that the light-emitting angle is the same as the light-emitting angle of the light-emitting unit 15 in the first display area AA after passing through the first light-shielding structure 141, that is, β 2 is β 1, thereby eliminating the differential display appearing in different areas of the display panel.
Wherein β 1 is a light emitting angle of the light emitting unit 15 in the first display area AA after passing through the first light shielding structure 141.
β 2 is the light-emitting angle of the light-emitting unit 15 in the second display area BB after passing through the second light-shielding structure 142 in the case of D3 > D4 and L1 > L2.
Optionally, in another embodiment of the present invention, referring to fig. 10, fig. 10 is a schematic cross-sectional view of another display panel provided in the embodiment of the present invention.
The display panel further includes: and an encapsulation layer 16 and a planarization layer 17 are sequentially stacked between the light shielding structure 14 and the pixel defining structure 121, wherein the planarization layer 17 is positioned on the side of the encapsulation layer 16 far away from the substrate 11.
That is, the other functional film 01 is only illustrated by the encapsulation layer 16 and the planarization layer 17, and it should be noted that the other functional film 01 includes, but is not limited to, only the encapsulation layer 16 and the planarization layer 17, and there may be other more films.
For example, the display panel further includes functional film layers located between the encapsulation layer 16 and the planarization layer 17 for performing functions such as touch control, and the planarization layer 17 is used for performing planarization processing on surfaces of the functional film layers facing away from the substrate 11.
Referring to fig. 11, fig. 11 is a schematic cross-sectional view of a further first display area according to an embodiment of the present invention.
The encapsulation layer 16 includes a first encapsulation layer 161 located in the first display area AA, and the thickness of the first encapsulation layer 161 is D5.
Referring to fig. 12, fig. 12 is a schematic cross-sectional view of a second display area according to another embodiment of the present invention.
The encapsulation layer 16 includes a second encapsulation layer 162 located in the second display area BB, the second encapsulation layer 162 has a thickness D6, D5 > D6.
Specifically, in the direction perpendicular to the substrate, the thickness of the encapsulation layer 16 in the first display area AA and the second display area BB is adjusted to make the thickness D6 of the first encapsulation layer 161 greater than the thickness D7 of the second encapsulation layer 162, so that the minimum distance D3 between the side of the first light shielding structure 141 facing the substrate 11 and the light-emitting surface of the light-emitting unit 15 is greater than the minimum distance D4 between the side of the second light shielding structure 142 facing the substrate 11 and the light-emitting surface of the light-emitting unit 15, and therefore, in the case where D3 is greater than D4 and L1 is greater than L2, the light-emitting angle of the light-emitting unit 15 in the second display area BB after passing through the second light shielding structure 142 is indirectly increased, so that the light-emitting angle is the same as the light-emitting angle of the light-emitting unit 15 in the first display area AA after passing through the first light shielding structure 141, and differential display appearing in different areas of the display panel is eliminated.
It should be noted that the encapsulation layer 16 generally includes a first sub-encapsulation layer, a second sub-encapsulation layer, and a third sub-encapsulation layer, which are sequentially stacked in a direction perpendicular to the substrate 11. The first sub-packaging layer and the third sub-packaging layer are inorganic matters and mainly play a role in packaging, and the second sub-packaging layer is organic matters and mainly plays a role in flattening and relieving stress. The second sub-packaging layer is generally formed by ink-jet printing of organic matters, and the thickness difference of the second sub-packaging layer in different areas can be realized relatively easily in process by regulating the ink-jet amount of the organic matters in the different areas. In a direction perpendicular to the substrate, the thickness of the second sub-package layer is greater than the thicknesses of the first sub-package layer and the second sub-package layer, so that the thickness of the second sub-package layer in the first display area AA and the second display area BB can be adjusted to make the thickness of the second sub-package layer in the first display area AA greater than the thickness of the second sub-package layer in the second display area BB, and further make the thickness of the first package layer 161 greater than the thickness of the second package layer 162, so as to increase the light emitting angle of the light emitting unit 15 in the second display area BB after passing through the second light shielding structure 142, and make the light emitting angle of the light emitting unit 15 in the first display area AA same as the light emitting angle of the light emitting unit 15 in the first display area AA after passing through the first light shielding structure 141, thereby eliminating differential display appearing in different areas of the display panel.
As shown in fig. 11, the planarization layer 17 includes a first planarization layer 171 located in the first display area AA, and the first planarization layer 171 has a thickness D7.
As shown in fig. 12, the planarization layer 17 includes a second planarization layer 172 located in the second display region BB, the second planarization layer 172 having a thickness D8, D7 > D8.
The planarization layer is organic, and is generally formed by a photolithography process, and planarization layers with different thicknesses can be formed in different regions by controlling different exposure amounts of the planarization layer corresponding to the different regions. The transmittance of different areas can be realized through the design of the mask, so that different planarization thicknesses of different areas can be realized by one mask without adding a new mask, the process is reduced, and the cost is saved. Specifically, the thickness D7 of the first planarization layer 171 is greater than the thickness D8 of the second planarization layer 172 by adjusting the thickness of the planarization layer 17 in the first display area AA and the second display area BB along the direction perpendicular to the substrate, and further the minimum distance D3 between the side of the first light shielding structure 141 facing the substrate 11 and the light emitting surface of the light emitting unit 15 is greater than the minimum distance D4 between the side of the second light shielding structure 142 facing the substrate 11 and the light emitting surface of the light emitting unit 15 along the direction perpendicular to the substrate, so that the light emitting angle of the light emitting unit 15 in the second display area BB after passing through the second light shielding structure 142 is indirectly increased when D3 is greater than D4 and L1 is greater than L2, so that the light emitting angle is the same as the light emitting angle of the light emitting unit 15 in the first display area AA after passing through the first light shielding structure 141, and further the differential display occurring in different areas of the display panel is eliminated.
Optionally, the planarization layer 17 includes an opening corresponding to the second display region BB.
That is, the planarization layer 17 is provided in the first display area AA, the planarization layer 17 is not provided in the second display area BB, the minimum distance between the substrate 11-facing side of the second light-shielding structure 142 in the second display region BB in the direction perpendicular to the substrate and the light-emitting surface of the light-emitting unit 15 can be further reduced, further, the minimum distance D3 between the side of the first light shielding structure 141 facing the substrate 11 and the light emitting surface of the light emitting unit 15 is greater than the minimum distance D4 between the side of the second light shielding structure 142 facing the substrate 11 and the light emitting surface of the light emitting unit 15, so that when D3 > D4 and L1 > L2, the light emitting angle of the light emitting unit 15 in the second display area BB after passing through the second light shielding structure 142 is indirectly increased, so that the light emitting angle is the same as the light emitting angle of the light emitting unit 15 in the first display area AA after passing through the first light shielding structure 141, thereby eliminating the differential display appearing in different areas of the display panel.
It should be noted that, in the embodiment of the present invention, the above corresponding design may be simultaneously performed on the encapsulation layer 16 and the planarization layer 17, and the minimum distance D3 between the side of the first light shielding structure 141 facing the substrate 11 and the light emitting surface of the light emitting unit 15 is greater than the minimum distance D4 between the side of the second light shielding structure 142 facing the substrate 11 and the light emitting surface of the light emitting unit 15 along the direction perpendicular to the substrate, so that when D3 is greater than D4 and L1 is greater than L2, it is equivalent to indirectly increase the light emitting angle of the light emitting unit 15 in the second display area BB after passing through the second light shielding structure 142, so that the light emitting angle is the same as the light emitting angle of the light emitting unit 15 in the first display area AA after passing through the first light shielding structure 141, thereby eliminating the differential display appearing in different areas of the display panel.
Optionally, in another embodiment of the present invention, referring to fig. 13, fig. 13 is a schematic top view of another display panel provided in the embodiment of the present invention.
The pixel opening 122 includes an a pixel opening 122C where the first light emitting unit is placed and a b pixel opening 122D where the second light emitting unit is placed.
The first light emitting unit emits a first color light having a wavelength λ 1.
The second light emitting unit emits a second color light having a wavelength of λ 2, where λ 1 > λ 2.
For example, the first light emitting unit may be a light emitting unit for emitting red light, and the second light emitting unit may be a light emitting unit for emitting green light.
The opening size of the first pixel opening 122C positioned in the first display area AA is S1, and the opening size of the first pixel opening 122C positioned in the second display area BB is S2.
The opening size of the b pixel opening 122D located in the first display area AA is S3, and the opening size of the b pixel opening 122D located in the second display area BB is S4.
Wherein, S1/S2 is S3/S4.
Specifically, the reduction ratio of the first pixel opening 122C in the first display area AA and the second display area BB is the same as the reduction ratio of the second pixel opening 122D in the first display area AA and the second display area BB, so that the same-ratio change of the service lives of the light-emitting units in the pixel opening in the first display area AA and the second display area BB can be ensured, the working life of part of the light-emitting units in the second display area BB is prevented from being shorter than the working life of other light-emitting units, and the display effect of the second display area BB is ensured.
Optionally, as shown in fig. 13, the pixel opening 122 further includes: the third pixel opening 122E of the third light emitting unit is disposed.
The first light emitting unit emits a first color light having a wavelength λ 1.
The second light emitting unit emits a second color light having a wavelength λ 2.
The third light emitting unit emits a third color light having a wavelength λ 3.
Wherein λ 1 > λ 2 > λ 3.
For example, the first light emitting unit may be a light emitting unit for emitting red light, the second light emitting unit may be a light emitting unit for emitting green light, and the third light emitting unit may be a light emitting unit for emitting blue light.
The opening size of the first pixel opening 122C positioned in the first display area AA is S1, and the opening size of the first pixel opening 122C positioned in the second display area BB is S2.
The opening size of the b pixel opening 122D located in the first display area AA is S3, and the opening size of the b pixel opening 122D located in the second display area BB is S4.
The opening size of the pixel aperture 122E located in the first display area AA is S5, and the opening size of the pixel aperture 122E located in the second display area BB is S6.
Wherein, S1/S2 is S3/S4 is S5/S6.
As used herein, "about" or "approximately" or "equal to" includes the stated value, and is meant to be within an acceptable range for the deviation of the particular value, as determined by one of ordinary skill in the art, in view of the measurement in question and the error associated with the particular number of measurements (i.e., the limitations of the measurement system). For example, "═ can mean within one or more standard deviations of the stated values, or within ± 30%, ± 20%, ± 10% or ± 5%.
It should be noted that S1/S2 is S3/S4 or S1/S2 is S3/S4 is S5/S6, which is an optimal and optimal relationship, but based on the influence of factors such as process errors, S1/S2, S3/S4 and S5/S6 may be regarded as S1/S2 is S3/S4 or S1/S2 is S3/S4 is S5/S6 as long as the error range of S1/S2, S3/S4 and S5/S6 is within 30%.
Specifically, the reduction ratio of the first pixel opening 122C in the first display area AA and the second display area BB is the same as the reduction ratio of the second pixel opening 122D in the first display area AA and the second display area BB is the same as the reduction ratio of the third pixel opening 122E in the first display area AA and the second display area BB, and it is also possible to ensure that the lifetimes of the light-emitting units in the pixel openings in the first display area AA and the second display area BB change in the same ratio, thereby preventing the working lifetimes of some light-emitting units in the second display area BB from being shorter than the working lifetimes of other light-emitting units, and further ensuring the display effect of the second display area BB.
Optionally, in the direction perpendicular to the substrate, the thickness of the first display area AA of the first color set structure corresponding to the first pixel opening 122C in the first display area AA is Y1, and the thickness of the second display area BB of the second color set structure corresponding to the first pixel opening 122C in the second display area BB is Y2.
In the vertical direction to the substrate, the thickness of the b-group structure corresponding to the b-pixel opening 122D in the first display area AA is Y3, and the thickness of the b-group structure corresponding to the b-pixel opening 122D in the second display area BB is Y4.
Wherein, Y1/Y2 is Y3/Y4.
Specifically, the reduction ratio of the thickness of the first color group structure corresponding to the first pixel opening 122C in the first display area AA and the second display area BB is the same as the reduction ratio of the thickness of the second color group structure corresponding to the second pixel opening 122D in the first display area AA and the second display area BB, so that the transmittance of the corresponding color group structure is changed in proportion in the first display area AA and the second display area BB, uniform transition of display effects of the first display area AA and the second display area BB is ensured, and differential display between the first display area AA and the second display area BB is avoided.
Optionally, in the direction perpendicular to the substrate, the thickness of the third color set structure corresponding to the third pixel opening 122E located in the first display area AA is Y5, and the thickness of the third color set structure corresponding to the third pixel opening 122E located in the second display area BB is Y6.
Wherein, Y1/Y2 ═ Y3/Y4 ═ Y5/Y6.
Specifically, the reduction ratio of the thickness of the first color group structure corresponding to the first pixel opening 122C in the first display area AA and the second display area BB is the same as the reduction ratio of the thickness of the second color group structure corresponding to the second pixel opening 122D in the first display area AA and the second display area BB in the thickness of the third color group structure corresponding to the third pixel opening 122E in the first display area AA and the second display area BB, so that the transmittance of the corresponding color group structure changes in proportion in the first display area AA and the second display area BB, thereby ensuring uniform transition of the display effects of the first display area AA and the second display area BB and avoiding differential display between the first display area AA and the second display area BB.
The thickness and transmittance of the color set structure are not linearly related.
The first color group structure corresponding to the first pixel opening 122C means that an orthographic projection of the first color group structure on the substrate 11 at least completely covers an orthographic projection of the first pixel opening 122C on the substrate 11, and an orthographic projection area of the first color group structure on the substrate 11 is larger than an orthographic projection area of the first pixel opening 122C on the substrate 11.
The b-color set structure corresponding to the b-pixel opening 122D means that an orthographic projection of the b-color set structure on the substrate 11 at least completely covers an orthographic projection of the b-pixel opening 122D on the substrate 11, and an orthographic projection area of the b-color set structure on the substrate 11 is larger than an orthographic projection area of the b-pixel opening 122D on the substrate 11.
The third color group structure corresponding to the third pixel opening 122E means that an orthographic projection of the third color group structure on the substrate 11 at least completely covers an orthographic projection of the third pixel opening 122E on the substrate 11, and an orthographic projection area of the third color group structure on the substrate 11 is larger than an orthographic projection area of the third pixel opening 122E on the substrate 11.
Optionally, in another embodiment of the present invention, referring to fig. 14, fig. 14 is a schematic cross-sectional view of another display panel provided in the embodiment of the present invention.
The thickness of the first pixel opening 122C corresponding to the color-resisting structure 13 is D9, the thickness of the second pixel opening 122D corresponding to the color-resisting structure 13 is D10, and D9 is smaller than D10.
The minimum distance between the orthographic projection edge of the light shielding structure 14 on the substrate 11 and the orthographic projection edge of the a-pixel opening 122C on the substrate 11 is L3.
The minimum distance between the orthographic projection edge of the light shielding structure 14 on the substrate 11 and the orthographic projection edge of the pixel opening 122D on the substrate 11 is L4.
Wherein L3 is less than L4.
For example, the first light emitting unit may be a light emitting unit for emitting red light, the second light emitting unit may be a light emitting unit for emitting green light, the first light emitting unit is located in the first pixel opening 122C, and the second light emitting unit is located in the second pixel opening 122D, where the light emitting efficiency of the first light emitting unit is generally smaller than that of the second light emitting unit, so in the embodiment of the present invention, the thickness D9 of the color barrier structure 13 corresponding to the first pixel opening 122C is set smaller than the thickness D10 of the color barrier structure 13 corresponding to the second pixel opening 122D, so that the blocking degree of the color barrier structure corresponding to the first pixel opening 122C on the red light emitted by the first light emitting unit is smaller than that of the color barrier structure corresponding to the second pixel opening 122D on the green light emitted by the second light emitting unit, thereby improving the light emitting efficiency of the first light emitting unit.
Under the condition that the thickness of the corresponding color resist structure 13 is reduced, in order to ensure that the reflectances of the display panels are the same, the minimum distance between the orthographic projection edge of the light shielding structure 14 on the substrate 11 and the orthographic projection edge of the pixel opening 122 on the substrate 11 needs to be adjusted, so that the minimum distance between the orthographic projection edge of the light shielding structure 14 on the substrate 11 and the orthographic projection edge of the first pixel opening 122C on the substrate 11 is smaller than the minimum distance between the orthographic projection edge of the light shielding structure 14 on the substrate 11 and the orthographic projection edge of the second pixel opening 122D on the substrate 11.
The schematic cross-sectional view of the display panel shown in fig. 14 may be a schematic cross-sectional view of the first display area AA or a schematic cross-sectional view of the second display area BB.
Optionally, in another embodiment of the present invention, referring to fig. 15, fig. 15 is a schematic cross-sectional view of another display panel provided in the embodiment of the present invention.
The display panel further includes:
and sub-pixels disposed corresponding to the pixel openings 122.
An array layer 18, the array layer 18 being located between the pixel defining layer 12 and the substrate 11.
Specifically, the array layer 18 is also called a Thin Film Transistor (TFT) layer for controlling the operation state of the sub-pixels.
The array layer 18 includes a plurality of thin film transistors 19; the thin film transistor 19 includes an active layer 191, a gate electrode 192, a source electrode 193, and a drain electrode 194, the array layer 18 further includes a gate insulating layer 20 disposed between the active layer 191 and the gate electrode 192, an interlayer insulating layer 21 disposed between the gate electrode 192 and the source and drain electrodes 193 and 194, a passivation layer 22 disposed on a side of the source and drain electrodes 193 and 194 away from the interlayer insulating layer 21, and a planarization layer 23 disposed on a side of the passivation layer 22 away from the interlayer insulating layer 21.
Note that the source 193 and the drain 194 are located in the same layer.
Note that the thin film transistor 19 may be a P-type thin film transistor or an N-type thin film transistor in the embodiment of the present invention, and the P-type thin film transistor is taken as an example in the embodiment of the present invention.
When the thin film transistor 19 may be a P-type thin film transistor, the sub-pixel is connected to a drain of the P-type thin film transistor.
When the thin film transistor 19 may be an N-type thin film transistor, the sub-pixel is connected to a source of the N-type thin film transistor.
Alternatively, as shown in fig. 15, the display panel may further include a buffer layer 24 between the substrate 11 and the array layer 18.
The buffer layer 24 includes, but is not limited to, an inorganic material layer including, but not limited to, silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, or aluminum nitride, or an organic material layer including, but not limited to, acrylic, PI, or the like.
Referring to fig. 16, fig. 16 is a schematic top view of still another display panel provided in the embodiment of the present invention, the second display area BB includes a first sub-display area BB1 and a second sub-display area BB2, the first sub-display area BB1 is located between the second sub-display area BB2 and the first display area AA, and at least partially surrounds the second sub-display area BB 2; the first display area BB1 is a normal display area of the display panel, and the second sub-display area BB2 is a display area provided with an imaging module.
The sub-pixels include a first sub-pixel located in the first sub-display area BB1 and a second sub-pixel located in the second sub-display area BB2, and the array layer 18 includes a first array layer located in the first sub-display area BB 1.
The first array layer is electrically connected with the first sub-pixel and the second sub-pixel.
Specifically, in the embodiment of the present invention, the array layer 18 is not disposed in the second sub-display area BB2, but the first sub-pixel and the second sub-pixel are driven simultaneously by the first array layer located in the first sub-display area BB1, and the second sub-pixel is optionally connected to one electrode terminal of the thin film transistor in the first array layer by a transparent metal, so as to drive the second sub-pixel.
Since the array layer 18 is not disposed in the second sub-display area BB2, it is obvious that the light transmittance of the second sub-display area BB2 can be further improved, a good imaging environment is provided for the imaging module, and the imaging quality of the imaging module is improved.
Optionally, in another embodiment of the present invention, referring to fig. 17, fig. 17 is a schematic diagram of a second light shielding structure and a second light shielding structure according to an embodiment of the present invention, and the second sub-display area BB2 includes a transmissive area.
The second light shielding structure 142 includes a second light shielding structure 25 located in the first sub-display region BB1 and a second light shielding structure 26 located in the second sub-display region BB 2.
The second light shielding structure 25 includes a first opening 251, and the first opening 251 corresponds to the first sub-pixel.
The second light shielding structure 26 includes a second opening 261 and a third opening 262, the second opening 261 corresponds to the second sub-pixel, and the third opening 262 corresponds to the transmissive region.
Specifically, the first sub-pixel is exposed through the first opening 251 on the second shading structure 25, the second sub-pixel is exposed through the second opening 261 of the second diethyl shading structure 26, the transparent area is exposed through the third opening 262 of the second diethyl shading structure 26, the transparent area is used for enabling external light to reach the imaging module, and a good imaging environment can be provided for the imaging module through the transparent area, so that the imaging quality of the imaging module is improved.
Optionally, in another embodiment of the present invention, referring to fig. 18, fig. 18 is a schematic cross-sectional view of another display panel provided in the embodiment of the present invention.
A light emitting unit 15 located within the pixel opening 122;
the minimum distance between the side of the light shielding structure 14 facing the substrate 11 and the light emitting surface of the light emitting unit 15 in the direction perpendicular to the substrate 11 is T.
The minimum distance between the orthographic projection edge of the light shielding structure 14 on the substrate 11 and the orthographic projection edge of the pixel defining structure 121 on the substrate 11 is L.
Wherein L ═ T × tan (θ).
Alpha is a light-emitting angle of the emergent light of the light-emitting unit 15 after passing through the light-shielding structure 14, specifically, alpha is an included angle between the emergent light of the light-emitting unit 15 after passing through the light-shielding structure 14 and the normal of the display panel, and when the included angle between the emergent light of the light-emitting unit 15 and the normal is smaller than or equal to alpha, alpha is not shielded by the light-shielding structure 14; when the angle between the light emitted from the light emitting unit 15 and the normal is larger than α, part of the emitted light is blocked by the light blocking structure 14, and part of the emitted light is not blocked by the light blocking structure 14.
Theta is an equivalent angle in the film layer corresponding to the emergent light with the emergent angle alpha after the emergent light passes through the shading structure;
n is an equivalent refractive index of a film layer between the light shielding structure 14 and the pixel defining layer 12.
Wherein, according to the refractive index formula, n × sin θ ═ 1 × sin α; where "1" represents the refractive index of air.
The formula conversion can obtain:
specifically, the light-emitting angle of each light-emitting unit 15 after passing through the light-shielding structure 14 is adjusted by the above formula, so as to ensure that the light-emitting angles of each light-emitting unit 15 on the display panel after passing through the light-shielding structure 14 are the same, and improve the display uniformity of the display panel.
Alternatively, it is assumed that N film layers are stacked between the light shielding structure 14 and the pixel definition 12, the refractive index of the first film layer is N1, and the thickness is T1; the refractive index of the second film layer is N2, and the thickness is T2; the refractive index of the third film layer is N3, and the thickness is T3; … the Nth film layer has a refractive index of Nn and a thickness of Tn.
Wherein, T1+ T2+ T3+ … Tn is T.
Then from the refractive index formula:
N1*sinθ1＝N2*sinθ2＝N3*sinθ3＝...＝Nn*sinθn＝1*sinα；
T1*tanθ1+T2*tanθ2+T3*tanθ3+...+Tn*tanθn＝T*tanθ＝L。
assuming that the equivalent refractive index of the N layers is N, it is apparent that N × sin θ is 1 × sin α.
And theta is the equivalent refraction angle of the N layers of film layers.
Optionally, based on all the above embodiments of the present invention, in another embodiment of the present invention, referring to fig. 19, fig. 19 is a schematic structural diagram of a display device according to an embodiment of the present invention.
The display device 100 includes the display panel of the above embodiment.
Specifically, the display device 100 includes, but is not limited to, electronic devices such as a tablet and a mobile phone, and has the same features as those of the display panel provided in the above-described embodiment of the present invention.
The display panel and the display device provided by the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further 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 or 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. A display panel, comprising: a first display area and a second display area, the first display area at least partially surrounding the second display area;
a substrate;
a pixel defining layer on one side of the substrate, the pixel defining layer including a pixel defining structure and a pixel opening;
the color resistance structure is positioned on one side of the pixel defining layer, which is far away from the substrate, and the color resistance structure is arranged corresponding to the pixel opening; the color resistance structure comprises a first color resistance positioned in the first display area and a second color resistance positioned in the second display area, the thickness of the first color resistance is D1, the thickness of the second color resistance is D2, D1 is more than D2, and the colors of the first color resistance and the second color resistance are the same;
the light shielding structure is positioned on one side of the pixel defining layer, which is far away from the substrate, and the light shielding structure and the pixel defining structure are at least partially overlapped;
the pixel defining structure comprises a first pixel defining structure positioned in the first display area and a second pixel defining structure positioned in the second display area, and the shading structure comprises a first shading structure corresponding to the first pixel defining structure and a second shading structure corresponding to the second pixel defining structure;
a minimum distance between an orthographic projection edge of the first light shielding structure on the substrate and an orthographic projection edge of the first pixel defining structure on the substrate is L1;
the minimum distance between the orthographic projection edge of the second light shielding structure on the substrate and the orthographic projection edge of the second pixel defining structure on the substrate is L2, and L1 > L2;
the pixel opening comprises a first pixel opening located in the first display area and a second pixel opening located in the second display area, the first pixel opening corresponds to the first color resistor and the first pixel definition structure, and the second pixel opening corresponds to the second color resistor and the second pixel definition structure.
2. The display panel according to claim 1,
the opening size of the first pixel opening is larger than that of the second pixel opening.
3. The display panel according to claim 1, further comprising:
a light emitting unit positioned within the pixel opening;
in the direction perpendicular to the substrate, the minimum distance between the side, facing the substrate, of the first light shielding structure and the light emitting surface of the light emitting unit is D3;
the minimum distance between the side, facing the substrate, of the second light shielding structure and the light emitting surface of the light emitting unit in the direction perpendicular to the substrate is D4, and D3 > D4.
4. The display panel according to claim 3,
and a packaging layer and a planarization layer are sequentially stacked between the shading structure and the pixel defining structure, and the planarization layer is positioned on one side of the packaging layer, which is far away from the substrate.
5. The display panel according to claim 4,
the packaging layers comprise a first packaging layer positioned in the first display area and a second packaging layer positioned in the second display area, the thickness of the first packaging layer is D5, the thickness of the second packaging layer is D6, and D5 is larger than D6.
6. The display panel according to claim 4,
the planarization layer comprises a first planarization layer positioned in the first display area and a second planarization layer positioned in the second display area, the first planarization layer has a thickness of D7, the second planarization layer has a thickness of D8, and D7 > D8.
7. The display panel according to claim 4,
the planarization layer includes an opening corresponding to the second display region.
8. The display panel according to claim 1,
the pixel openings comprise an A pixel opening for placing the first light-emitting unit and a B pixel opening for placing the second light-emitting unit;
the first light-emitting unit emits first color light, and the wavelength of the first color light is lambda 1;
the second light emitting unit emits a second color light having a wavelength of λ 2, where λ 1 > λ 2.
9. The display panel according to claim 8,
the opening size of the first pixel opening in the first display region is S1, and the opening size of the first pixel opening in the second display region is S2;
the opening size of the B pixel opening in the first display area is S3, and the opening size of the B pixel opening in the second display area is S4;
wherein, S1/S2 is S3/S4.
10. The display panel of claim 8, wherein the thickness of the A pixel opening corresponding to the color-resisting structure is D9, the thickness of the B pixel opening corresponding to the color-resisting structure is D10, D9 < D10;
the minimum distance between the orthographic projection edge of the light shielding structure on the substrate and the orthographic projection edge of the A pixel opening on the substrate is L3;
the minimum distance between the orthographic projection edge of the light shielding structure on the substrate and the orthographic projection edge of the pixel opening on the substrate is L4;
wherein L3 is less than L4.
11. The display panel according to claim 1, further comprising:
the sub-pixels are arranged corresponding to the pixel openings;
an array layer between the pixel defining layer and the substrate;
the second display area comprises a first sub-display area and a second sub-display area, the first sub-display area is positioned between the second sub-display area and the first display area, and at least partially surrounds the second sub-display area;
the sub-pixels comprise first sub-pixels positioned in the first sub-display area and second sub-pixels positioned in the second sub-display area, and the array layer comprises a first array layer positioned in the first sub-display area;
the first array layer and the first sub-pixel,
the first array layer is electrically connected with the second sub-pixels.
12. The display panel according to claim 11,
the second sub-display area comprises a transmission area;
the second shading structure comprises a second shading structure positioned in the first sub-display area and a second shading structure positioned in the second sub-display area;
the second shading structure comprises a first opening, and the first opening corresponds to the first sub-pixel;
the second shading structure comprises a second opening and a third opening, the second opening corresponds to the second sub-pixel, and the third opening corresponds to the transmission area.
13. The display panel according to claim 1,
a light emitting unit positioned within the pixel opening;
in the direction perpendicular to the substrate, the minimum distance between one side of the shading structure facing the substrate and the light-emitting surface of the light-emitting unit is T;
the minimum distance between the orthographic projection edge of the light shielding structure on the substrate and the orthographic projection edge of the pixel defining structure on the substrate is L;
wherein L ═ T tan (θ);
alpha is an emergent angle of emergent light of the light-emitting unit after the emergent light passes through the shading structure;
theta is an equivalent angle in the film layer corresponding to the emergent light with the emergent angle alpha after the emergent light passes through the shading structure;
and n is the equivalent refractive index of a film layer between the light shielding structure and the pixel defining layer.
14. A display device characterized in that it comprises a display panel according to any one of claims 1 to 13.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114864648A (en) * | 2022-05-31 | 2022-08-05 | 上海天马微电子有限公司 | Display panel and display device |
| WO2023202140A1 (en) * | 2022-04-22 | 2023-10-26 | Oppo广东移动通信有限公司 | Pixel structure, display panel and display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023202140A1 (en) * | 2022-04-22 | 2023-10-26 | Oppo广东移动通信有限公司 | Pixel structure, display panel and display screen |
| CN114864648A (en) * | 2022-05-31 | 2022-08-05 | 上海天马微电子有限公司 | Display panel and display device |
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