CN112201683A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112201683A CN112201683A CN202011133805.5A CN202011133805A CN112201683A CN 112201683 A CN112201683 A CN 112201683A CN 202011133805 A CN202011133805 A CN 202011133805A CN 112201683 A CN112201683 A CN 112201683A
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- 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]
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- 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
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- 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
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Abstract
The invention discloses a display panel and a display device, the display panel is provided with a first display area which can transmit light, and the display panel comprises: a substrate; a pixel unit layer on the substrate, the pixel unit layer including first sub-pixels in the first display region; the filter layer is positioned on one side, away from the substrate, of the pixel unit layer and comprises a first black matrix unit and a first color resistance unit, the first black matrix unit and the first color resistance unit are positioned in the first display area, the orthographic projection of the first color resistance unit on the substrate covers the orthographic projection of the first sub-pixel on the substrate, at least part of the first black matrix unit is positioned between the adjacent first color resistance units, and the first black matrix unit and the first color resistance unit are arranged at intervals. The display panel and the display device provided by the invention can improve the light transmittance of the area where the photosensitive assembly is located, facilitate the under-screen integration of the photosensitive assembly and improve the screen ratio.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the rapid development of electronic devices, the requirements of users on screen occupation ratio are higher and higher, so that the comprehensive screen display of the electronic devices is concerned more and more in the industry.
Traditional electronic equipment such as cell-phone, panel computer etc. need integrate functional component such as leading camera, earphone and infrared sensing element to satisfy user's diversified demand. However, the electronic device in the prior art has poor light transmittance in, for example, the front camera area, and is not beneficial to the under-screen integration of the front camera.
Disclosure of Invention
The invention provides a display panel and a display device, which can improve the light transmittance of a first display area, facilitate the under-screen integration of a photosensitive assembly and improve the screen ratio.
In one aspect, an embodiment of the present invention provides a display panel having a first display region capable of transmitting light, the display panel including: a substrate; a pixel unit layer on the substrate, the pixel unit layer including first sub-pixels in the first display region; the filter layer is positioned on one side, away from the substrate, of the pixel unit layer and comprises a first black matrix unit and a first color resistance unit, the first black matrix unit and the first color resistance unit are positioned in the first display area, the orthographic projection of the first color resistance unit on the substrate covers the orthographic projection of the first sub-pixel on the substrate, at least part of the first black matrix unit is positioned between the adjacent first color resistance units, and the first black matrix unit and the first color resistance unit are arranged at intervals.
According to an aspect of the embodiments of the present invention, the first black matrix unit and two adjacent first color resistance units have equal spacing;
optionally, the first color resistance units are arranged along a first direction to form first color resistance rows, the first color resistance rows are arranged along a second direction, the first direction is crossed with the second direction, the first black matrix unit is located between two adjacent first color resistance rows, and along the second direction, the distance between the first black matrix unit and two adjacent first color resistance rows is equal.
According to an aspect of an embodiment of the present invention, the display panel further includes: a plurality of first signal lines arranged at intervals and positioned in the first display area, wherein the orthographic projection of the first black matrix unit on the substrate covers at least part of the orthographic projection of the first signal lines on the substrate;
optionally, the material of the first signal line is metal.
According to an aspect of the embodiments of the present invention, the first signal lines include a first routing portion and a second routing portion electrically connected to each other, in two adjacent first signal lines, a pitch between the first routing portions is greater than a pitch between the second routing portions, and an orthogonal projection of the first black matrix unit on the substrate covers at least a portion of an orthogonal projection of the second routing portion on the substrate.
According to an aspect of the embodiment of the invention, orthographic projections of the second routing parts on the substrate are arranged between orthographic projections of two adjacent first color resistance units on the substrate at intervals, the plurality of second routing parts located between the two adjacent first color resistance units are arranged to be routing dense units, and the spacing between the routing dense units and the two adjacent first color resistance units in the direction parallel to the plane of the display panel is equal.
According to an aspect of the embodiment of the present invention, the first color resistance units are arranged along a first direction to form a first color resistance array, the first color resistance array is arranged along a second direction, the first direction is crossed with the second direction, orthographic projections of at least a part of the first signal lines on the substrate sequentially pass through the orthographic projections of the first color resistance array on the substrate, the routing dense unit is located between two adjacent first color resistance units of the first color resistance array, and the distance between two ends of the routing dense unit in the extending direction and the adjacent first color resistance units is equal.
According to an aspect of the embodiment of the invention, the first color-resisting units are arranged along a first direction to form first color-resisting columns, the first color-resisting columns are arranged along a second direction, the first direction is crossed with the second direction, the orthographic projections of the routing dense unit on the substrate extend between the orthographic projections of two adjacent first color-resisting columns on the substrate, and the outer contour of the routing dense unit is equal to the distance between two adjacent first color-resisting columns.
According to an aspect of the embodiment of the present invention, the second routing portion includes a straight line portion and a diagonal line portion connected to each other, the diagonal line portion is connected between the first routing portion and the straight line portion, and an orthogonal projection of the first black matrix unit on the substrate covers an orthogonal projection of the straight line portion on the substrate; or the orthographic projection of the first black matrix unit on the substrate covers at least part of the orthographic projection of the diagonal part on the substrate and the orthographic projection of the straight line part on the substrate respectively;
optionally, in two adjacent first signal lines with the same extension direction, the distance between the straight line portions is 0.6-0.8 times the distance between the first routing line portions;
optionally, the distance between two adjacent linear portions is equal, and the distance between two adjacent linear portions is 1 to 10 micrometers;
optionally, the first sub-pixels include a plurality of types of light emission colors, the first color resistance units include a plurality of types of colors, and an orthogonal projection of the first color resistance units on the substrate covers an orthogonal projection of the first sub-pixels of the same color on the substrate.
According to an aspect of the embodiments of the present invention, the display panel further has a second display area adjacent to the first display area, light transmittance of the second display area is smaller than that of the first display area, the display panel further includes a polarizing layer located in the second display area and on a side of the pixel unit layer away from the substrate, the polarizing layer includes a first opening penetrating through the polarizing layer in a direction perpendicular to a plane of the display panel, and the filter layer is located in the first opening;
optionally, the light transmittance of the polarizing layer is less than the light transmittance of the filter layer;
optionally, the surface of the polarizing layer near the substrate is layered with the filter layer.
According to an aspect of the embodiments of the present invention, the display panel further has a second display area adjacent to the first display area, a light transmittance of the second display area is smaller than a light transmittance of the first display area, the pixel unit layer further includes a second sub-pixel located in the second display area, the filter layer further includes a second black matrix layer located in the second display area, the second black matrix layer includes a second opening, the second opening penetrates through the second black matrix layer along a direction perpendicular to a plane of the display panel, the second color resistance unit is filled in the second opening, and an orthographic projection of the second color resistance unit on the substrate covers an orthographic projection of the second sub-pixel on the substrate.
On the other hand, an embodiment of the present invention further provides a display device, including the display panel of any one of the above embodiments.
According to the display panel and the display device provided by the embodiment of the invention, the display panel is provided with the first display area which can transmit light, so that the display panel can integrate the photosensitive assembly on the back surface of the first display area, and the under-screen integration of the photosensitive assembly such as a camera or a fingerprint identification sensor is realized.
The display panel comprises a substrate, a pixel definition layer and a filter layer, wherein the filter layer is located on one side, deviating from the substrate, of the pixel unit layer, and can filter light rays emitted by the pixel unit layer, so that the display effect of the display panel is improved. The filter layer comprises a first black matrix unit located in the first display area and a first color resistance unit located in the first display area, and the orthographic projection of the first color resistance unit on the substrate covers the orthographic projection of the first sub-pixels on the substrate, so that the first color resistance unit can improve the luminous light extraction purity of each first sub-pixel, and the display effect of the display panel is improved. Further, through setting up first black matrix unit, can effective absorption external environment light, reduce the inside membranous layer structure of display panel and avoid dazzling the light effect to external environment light's reflex action. At least part of the first black matrix units are located between the adjacent first color resistance units, and the first black matrix units and the first color resistance units are arranged at intervals, so that the light can pass through the interval area between the first black matrix units and the first color resistance units, the light transmittance of the first display area is effectively increased, and the use performance of the photosensitive assembly under the screen is improved.
Drawings
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
FIG. 1 is a top view of a display panel of one embodiment of the present invention;
FIG. 2 is an enlarged schematic view of a display panel shown in FIG. 1 at Q;
FIG. 3 is a schematic diagram of a first signal line of the display panel shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is an enlarged schematic view of another display panel shown in FIG. 1 at Q;
FIG. 6 is a schematic diagram of a first signal line of the display panel shown in FIG. 5;
FIG. 7 is an enlarged schematic view of another display panel shown in FIG. 1 at Q;
fig. 8 is a schematic cross-sectional view taken along the direction C-C in fig. 7.
In the figure:
100-a display panel; AA 1-first display area; AA 2-second display area; x-a first direction; y-a second direction;
10-a substrate;
20-a device layer;
30-pixel unit layer; 31-a first sub-pixel; 32-a second sub-pixel;
40-a filter layer; 41-a first color resist row; 411-a first color resistance unit; 42-first black matrix cell; 43-a second black matrix layer; 44-a second color resistance unit;
50-a first signal line; 51-a first routing portion; 52-a second routing portion; 53-routing dense cells;
60-a polarizing layer;
71-a pixel definition layer; 72-a second signal line; 73-protective layer.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
On electronic devices such as mobile phones and tablet computers, it is necessary to integrate a photosensitive component such as a front camera, a fingerprint recognition sensor, a proximity light sensor, and the like on one side of the display panel 100. In some embodiments, a transparent display area may be disposed on the electronic device, and the photosensitive component is disposed on a back surface of the transparent display area, so that full-screen display of the electronic device is achieved under the condition that normal operation of the photosensitive component is ensured.
Generally, a circular Polarizer (Polarizer) is disposed on the display panel to prevent the display panel 100 from reflecting ambient light, but the circular Polarizer affects the transmittance of the light-transmissive display area of the display panel 100, and generally, the transmittance of the circular Polarizer is only 30% to 40%, which affects the under-screen integration of the photosensitive assembly.
In order to solve the above problem, embodiments of the present invention provide a display panel 100 and a display device. The display panel 100 and the display device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 4 together, fig. 1 is a top view of a display panel according to an embodiment of the present invention, fig. 2 is an enlarged structural diagram of a display panel shown in fig. 1 at a position Q, fig. 3 is a structural diagram of a first signal line of the display panel shown in fig. 2, and fig. 4 is a cross-sectional diagram along a direction B-B in fig. 2. The embodiment of the invention provides a display panel 100, which has a light-transmissive first display area AA1, and specifically, the first display area AA1 includes a light-transmissive display area, which is capable of transmitting light, so as to integrate a photosensitive component in the first display area AA1, thereby improving the screen ratio of the display panel 100. It is understood that the first display area AA1 may be a transparent display area, and the two areas overlap, but the first display area AA1 may also include other areas besides the transparent display area, and is not limited herein. Through set up first display area AA1 that can pass through on display panel 100 for display panel 100 can integrate photosensitive assembly at the back of first display area AA1, for example realizes that leading camera or fingerprint identification sensor's screen is integrated down, does benefit to the comprehensive demonstration that realizes display panel 100.
The pixel unit layer 30 is disposed on the substrate 10, the pixel unit layer 30 includes first sub-pixels 31 disposed in the first display area AA1, and the first sub-pixels 31 may include a plurality of colors different from each other to realize a color display. The filter layer 40 is located on a side of the pixel unit layer 30 away from the substrate 10, the filter layer 40 includes a first black matrix unit 42 and a first color resist unit 411 located in the first display area AA1, an orthographic projection of the first color resist unit 411 on the substrate 10 covers an orthographic projection of the first sub-pixel 31 on the substrate 10, at least a part of the first black matrix unit 42 is located between adjacent first color resist units 411, and the first black matrix unit 42 and the first color resist unit 411 are arranged at an interval. By reasonably arranging the structure of the filter layer 40, the light transmittance of the filter layer 40 can reach 60% to 80%.
Herein, the light transmittance of the first display area AA1, i.e., the light transmissive display area, may be greater than or equal to 15%. In order 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 some functional film layers of the display panel 100 in this embodiment is greater than 80%, and even greater than 90%.
According to the display panel 100 of the embodiment of the invention, by arranging the first color resistance unit 411, the light extraction purity of the light emitted by each first sub-pixel 31 can be improved, so that the display effect of the display panel 100 is improved, further, the first black matrix unit 42 can effectively absorb external ambient light, the reflection effect of a film structure inside the display panel 100 on the external ambient light is reduced, and by reasonably arranging the gap between the first black matrix unit 42 and the first color resistance unit 411, the light transmittance of the first display area AA 35 1 can be effectively increased, compared with the case that a circular polarizer is arranged in the first display area AA1, the display panel 100 of the embodiment of the invention can improve the light transmittance of the first display area AA 1.
Referring to fig. 2, in some embodiments, the first black matrix unit and the two adjacent first color resistance units have the same distance therebetween. Through the above arrangement, the first black matrix unit 42 uniformly absorbs the light between the two adjacent first color resistance units 411, so as to prevent the generation of a glare effect, and simultaneously, the external light uniformly penetrates through the first display area AA1, thereby facilitating the improvement of the working performance of the photosensitive assembly under the screen.
In some embodiments, the first color resist units 411 are arranged along the first direction X to form a first color resist column 41, the plurality of first color resist columns 41 are arranged along the second direction Y, the first black matrix unit 42 is located between two adjacent first color resist columns 41, and the first black matrix unit 42 and two adjacent first color resist column 41 are equally spaced along the second direction Y. The first direction X may be a row direction of the display panel 100, and the second direction Y may be a column direction of the display panel 100, which is not limited in the present invention. Through the arrangement structure who rationally sets up first color resistance unit 411 for first color resistance unit 411 can filter the light of the predetermined wavelength that first subpixel 31 sent better, removes the light of stray wavelength, improves display panel 100's light-emitting purity and display effect, makes display panel 100's colour gamut stable, makes external light evenly pass through first display area AA1 simultaneously, is convenient for improve photosensitive assembly's under the screen working property.
Referring to fig. 2 and fig. 3 together, in order to realize the display of the display panel 100, in some embodiments, the display panel 100 further includes a plurality of first signal lines 50 disposed at intervals, the first signal lines 50 are located in the first display area AA1, and the first signal lines 50 are disposed to transmit electric signals to the first sub-pixels 31, so that the first sub-pixels 31 emit light for display. Optionally, the material of the first signal line 50 is a metal material, which is convenient for reducing the routing load of the first signal line 50 and improving the transmission efficiency of the first signal line 50 to the electrical signal. Alternatively, the extending direction of the first signal line 50 in the first display area AA1 may be set according to the user's requirement, for example, the first signal line 50 may extend along the first direction X and may also extend along the second direction Y.
In order to solve the above problem, when the first signal line 50 is made of a metal material, the first black matrix unit 42 may reflect light incident into the display panel 100, so as to generate a glare effect on the display panel 100, and an orthographic projection of the first signal line 50 on the substrate 10 covers at least a portion of the orthographic projection of the first signal line 50 on the substrate 10. Through the above arrangement, the first black matrix unit 42 can shield the reflection of the first signal line 50 made of the metal material to the external environment light, so as to avoid the glare effect, and improve the display effect of the display panel 100.
Alternatively, in order to realize the display of the display panel 100, the first signal line 50 may be at least one of a scan line, a data line, an anode supply line, a cathode supply line, and a light-emitting luminance control line, and the specific type of the first signal line 50 is not limited in the present invention.
Referring to fig. 3, in order to reduce an area of an orthogonal projection of the first black matrix unit 42 on the substrate 10 to prevent the first black matrix unit 42 from affecting light transmittance of the first display area AA1, in some embodiments, the first signal lines 50 include a first routing portion 51 and a second routing portion 52 electrically connected to each other, in two adjacent first signal lines 50, a distance between the first routing portions 51 is greater than a distance between the second routing portions 52, and an orthogonal projection of the first black matrix unit 42 on the substrate 10 covers at least a portion of an orthogonal projection of the second routing portion 52 on the substrate 10. With the above arrangement, the trace dense units 53 are formed between the second trace parts 52 of the plurality of first signal lines 50, and the orthographic projection of the first black matrix unit 42 on the substrate 10 covers at least part of the orthographic projection of the trace dense units 53 on the substrate 10, so that the first black matrix unit 42 can reduce the reflected light while reducing the influence on the light transmittance of the first display area AA 1.
In practical implementation, the display panel 100 may include a plurality of signal line groups, each of which includes a plurality of first signal lines 50 extending in the same direction, for example, fig. 3 schematically illustrates two signal line groups extending along a first direction X and two signal line groups extending along a second direction Y, where the first direction X intersects the second direction Y, and it is understood that the number of the first signal lines 50 included in each of the signal line groups may be set according to the requirement of a user. By arranging the first signal line 50 to include the first routing portion 51 and the second routing portion 52 electrically connected to each other, so that the signal line group includes the routing dense unit 53 formed by the plurality of second routing portions 52 and the conventional routing unit formed by the plurality of first routing portions 51, the pitch between the adjacent second routing portions 52 in the routing dense unit 53 is smaller than the pitch between the first routing portions 51 in the conventional routing unit.
In some embodiments, the orthogonal projection of the second routing portion 52 on the substrate 10 is disposed between the orthogonal projections of the two adjacent first color resist units 411 on the substrate 10 at intervals, the plurality of second routing portions 52 located between the two adjacent first color resist units 411 are arranged as routing dense units 53, and the spacing between the routing dense units 53 and the two adjacent first color resist units 411 in the direction parallel to the plane of the display panel 100 is equal. Through the above arrangement, the influence of the dense routing unit 53 on the electrical signals transmitted in the two adjacent first color resistance units 411 is the same, and the display uniformity of each first sub-pixel 31 is improved. It is understood that the two adjacent first color resist units 411 may be two adjacent first color resist units 411 located in the same column in fig. 3, or two adjacent first color resist units 411 located in adjacent columns.
Based on this, the orthographic projection of the first black matrix unit 42 on the substrate 10 covers at least part of the orthographic projection of the dense routing unit 53 on the substrate 10, and the spacing between the first black matrix unit 42 and two adjacent first color resistance units 411 is equal. Through the above arrangement, the first black matrix unit 42 uniformly absorbs the light between the two adjacent first color resistance units 411, so as to prevent the generation of a glare effect, and simultaneously, the external light uniformly penetrates through the first display area AA1, thereby facilitating the improvement of the working performance of the photosensitive assembly under the screen.
Referring to fig. 3, in some embodiments, the first color resist units 411 are arranged along a first direction X to form a first color resist column 41, and the first color resist column 41 is arranged along a second direction Y, where the first direction X may be a row direction of the display panel 100 and the second direction Y may be a column direction of the display panel 100, which is not limited in the disclosure. Through the arrangement structure of the first color resistance unit 411 which is reasonably arranged, the first color resistance unit 411 can better filter the light with the preset wavelength emitted by the first sub-pixel 31, the light with the stray wavelength is removed, the light-emitting purity and the display effect of the display panel 100 are improved, and the color gamut of the display panel 100 is stable.
Based on the arrangement structure of the first color resist units 411, in some embodiments, at least a part of the orthographic projections of the first signal lines 50 on the substrate 10 sequentially pass through the orthographic projections of the first color resist rows 41 on the substrate 10, that is, the orthographic projections of the first color resist rows 41 on the substrate 10 cover the orthographic projection parts of the first signal lines 50 on the substrate 10, at this time, the trace-dense units 53 are located between two adjacent first color resist units 411 in the first color resist rows 41, and the distance between two ends of the trace-dense units 53 in the extending direction and the adjacent first color resist units 411 is equal. Through the above arrangement, the influence of the dense routing unit 53 on the electrical signals transmitted in the two adjacent first color resistance units 411 is the same, and the display uniformity of each first sub-pixel 31 is improved.
Referring to fig. 3, 5 and 6, fig. 5 is an enlarged schematic structural diagram of another display panel shown in fig. 1 at a position Q, and fig. 6 is a schematic structural diagram of a first signal line of the display panel shown in fig. 5. When the first color resist units 411 are arranged along the first direction X to form the first color resist rows 41, and the first color resist rows 41 are arranged along the second direction Y, the orthographic projections of the dense routing units 53 on the substrate 10 can extend between the orthographic projections of the two adjacent first color resist rows 41 on the substrate 10, and the outer contours of the dense routing units 53 are equal to the distance between the two adjacent first color resist rows 41. Through the above arrangement, the influence of the dense routing unit 53 on the electrical signals transmitted in the two adjacent first color resistance units 411 is the same, and the display uniformity of each first sub-pixel 31 is improved.
In some embodiments, the second routing part 52 includes a straight line part and a diagonal line part connected to each other, the diagonal line part is connected between the first routing part 51 and the straight line part, and an orthogonal projection of the first black matrix unit 42 on the substrate 10 covers an orthogonal projection of the straight line part on the substrate 10; alternatively, the orthographic projections of the first black matrix units 42 on the substrate 10 cover at least a part of the orthographic projections of the diagonal portions on the substrate 10 and the orthographic projections of the linear portions on the substrate 10, respectively. Through the above arrangement, the area of the orthographic projection of the first black matrix unit 42 on the substrate 10 can be reasonably set, so that the first display area AA1 simultaneously satisfies the requirements of light transmittance and reduction of the light reflectivity to the external environment.
In order to solve the above problem, when the distance between two adjacent first signal lines 50 is too small, crosstalk is likely to occur in the electric signals transmitted between the two first signal lines 50, and in the two adjacent first signal lines 50 having the same extending direction, the distance between the straight portions of the second routing portions 52 is 0.6 to 0.8 times the distance between the first routing portions 51. It is understood that the extending direction of the first signal line 50 may be a column direction or a row direction of the display panel 100, and when the extending direction is the column direction of the display panel 100, it refers to an up-down direction of the display panel 100 in the drawing, and may be a straight line extension, a curved line extension or a broken line extension, and similarly, when the extending direction is the row direction of the display panel 100, it refers to a left-right direction of the display panel 100 in the drawing, and a specific extending form may be set according to a user requirement.
In order to make the electrical environment between the first signal lines 50 the same, in some embodiments, the distance between two adjacent straight line portions is equal, and the distance between two adjacent straight line portions is 1 to 10 micrometers. Through the arrangement, the routing arrangement of the first signal lines 50 can be met, and the electric signal crosstalk between the adjacent first signal lines 50 is prevented.
In order to realize the color display of the display panel 100, in some embodiments, the first sub-pixels 31 include a plurality of types with different emission colors, the first color resist units 411 include a plurality of types with different colors, and the orthographic projection of the first color resist units 411 on the substrate 10 covers the orthographic projection of the first sub-pixels 31 with the same color on the substrate 10. Through the above arrangement, the first color resistance unit 411 can filter the light of the first sub-pixel 31 with the same luminescent color, so as to improve the light extraction purity, and stabilize the color gamut of the display panel 100.
Referring to fig. 7 and 8, fig. 7 is an enlarged schematic view of another display panel shown in fig. 1 at Q, and fig. 8 is a cross-sectional view taken along the direction C-C in fig. 7. In some embodiments, the display panel 100 further has a second display area AA2 adjacent to the first display area AA1, and the light transmittance of the second display area AA2 is smaller than that of the first display area AA1, so that the display effect of the second display area AA2 can be improved, and the overall display effect of the display panel 100 can be improved.
Based on this, the display panel 100 further includes a polarizing layer 60, the polarizing layer 60 is located in the second display area AA2 and located on a side of the pixel unit layer 30 away from the substrate 10, the polarizing layer 60 includes a first opening, an orthographic projection of the first opening on the substrate 10 may overlap with the first display area AA1, the first opening penetrates through the polarizing layer 60 along a direction perpendicular to the plane of the display panel 100, and the filter layer 40 is located in the first opening, so that the light transmittance of the first display area AA1 is improved on the basis of ensuring the display effect of the second display area AA 2.
Optionally, the polarizing layer 60 may be a circular polarizer, and at this time, the light transmittance of the polarizing layer 60 is smaller than that of the filter layer 40, so that the light transmittance of the first display area AA1 can be effectively improved.
Optionally, the surface of the polarizing layer 60 near the substrate 10 is disposed in a layer with the filter layer 40, which facilitates the fabrication of the display panel 100.
As shown in fig. 4, when the display panel 100 further has a second display area AA2 adjacent to the first display area AA1, and the light transmittance of the second display area AA2 is smaller than the light transmittance of the first display area AA1, in some embodiments, the pixel unit layer 30 further includes a second sub-pixel 32 located in the second display area AA2, the filter layer 40 further includes a second black matrix layer 43 located in the second display area AA2 and a second color-resisting unit 44, the second black matrix layer 43 includes a second opening, the second opening penetrates through the second black matrix layer 43 along a direction perpendicular to the plane of the display panel 100, the second color-resisting unit 44 is filled in the second opening, and a front projection of the second color-resisting unit 44 on the substrate 10 covers a front projection of the second sub-pixel 32 on the substrate 10. With the above arrangement, the second color resistance unit 44 and the second color resistance unit 44 cooperate to achieve a filtering effect on the second display area AA 2.
In some embodiments, to realize the light emitting display of the second sub-pixel 32, the display panel 100 further includes a second signal line 72, and the second signal line 72 extends in the second display area AA 2.
In some embodiments, the first sub-pixel 31 and the second sub-pixel 32 have different colors. The first subpixel 31 may include a red first subpixel, a green first subpixel, and a blue first subpixel. Similarly, the second sub-pixel 32 of the display panel 100 in the second display area AA2 may include a red second sub-pixel, a green second sub-pixel, and a blue second sub-pixel.
It should be noted that the sub-pixels of different colors are distinguished by different filling patterns, and the sub-pixels of the same color are drawn by using the same filling pattern. The color type of each first subpixel 31 or each second subpixel 32 may be adjusted according to the design requirements of the display panel 100, and thus is not limited to the examples of the above-described embodiments. In addition, the arrangement between each of the first sub-pixels 31 and the second sub-pixels 32 is not limited to the example of the above embodiment.
In some embodiments, the display panel 100 further includes a pixel defining layer 71, the pixel defining layer 71 includes a first pixel opening, and the first sub-pixel 31 includes a first light emitting structure, a first electrode, and a second electrode. The first light emitting structure is located in the first pixel opening, the first electrode is located on a side of the first light emitting structure facing the substrate 10, and the second electrode is located on a side of the first light emitting structure facing away from the substrate 10. One of the first electrode and the second electrode is an anode, and the other is a cathode.
The second sub-pixel 32 has a similar structure to the first sub-pixel 31, for example, the pixel defining layer 71 further includes a second pixel opening, the second sub-pixel 32 includes a second light emitting structure disposed in the second pixel opening, and a third electrode and a fourth electrode, the third electrode is located on a side of the second light emitting structure facing the substrate 10, and the fourth electrode is located on a side of the second light emitting structure facing away from the substrate 10. One of the third electrode 321c and the fourth electrode 323c is an anode, and the other is a cathode.
In this embodiment, an example in which the first electrode, the third electrode, and the fourth electrode are anodes and cathodes will be described.
In some embodiments, in order to improve the light transmittance of the first display area AA1, the first electrode is a light-transmitting electrode, and optionally, the first electrode includes an Indium Tin Oxide (ITO) layer or an Indium zinc Oxide (ITO) layer.
In some embodiments, the first electrode is a reflective electrode and an area of an orthographic projection of the first electrode on the substrate 10 is smaller than an area of an orthographic projection of the third electrode on the substrate 10, and the first electrode may include a first light-transmissive conductive layer, a reflective layer on the first light-transmissive conductive layer, and a second light-transmissive conductive layer on the reflective layer. The first and second transparent conductive layers may be ITO, indium zinc oxide, etc., and the reflective layer may be a metal layer, such as made of silver.
In some embodiments, the constituent material of the second electrode comprises magnesium, silver, or a magnesium-silver alloy. The fourth electrode may be formed of the same material as the second electrode. In some embodiments, the second electrode, the fourth electrode may be interconnected as a common electrode.
Referring further to fig. 8, in some embodiments, the display panel 100 further includes a device layer 20 located between the substrate 10 and the pixel unit layer 30, the device layer 20 includes a plurality of pixel circuit layers and a wiring layer, the pixel circuit layers drive the first sub-pixel 31 and the second sub-pixel 32 to emit light for display, wherein the first signal line 50 and the second signal line 72 are located in the wiring layer, and the plurality of pixel circuits at least include a switching transistor, a driving transistor and a storage capacitor. The wiring layer is connected to a plurality of organic light emitting elements in the display module through the plurality of pixel circuits, so that the organic light emitting elements are driven to emit light.
To improve the strength of display panel 100, in some embodiments, display panel 100 further includes protective layer 73, and protective layer 73 is located on a side of filter layer 40 facing away from substrate 10. When the display panel 100 further comprises a polarizing layer 60, the protective layer 73 may also be located at a side of the polarizing layer 60 facing away from the substrate 10.
In summary, according to the display panel 100 provided by the embodiment of the invention, the display panel 100 has the first display area AA1 capable of transmitting light, so that the display panel 100 can integrate the photosensitive elements on the back side of the first display area AA1, thereby implementing the under-screen integration of the photosensitive elements such as a camera or a fingerprint sensor.
On the other hand, an embodiment of the present invention further provides a display device, including the display panel 100 of any of the above embodiments. Because the display device provided by the embodiment of the invention comprises the display panel 100 of any one of the embodiments, the display device provided by the embodiment of the invention has the same beneficial effects as the display panel 100 of the embodiment, not only can the full-scale display be realized, but also the display panel 100 can have higher light transmittance, and the under-screen integration of components such as photosensitive components and the like is facilitated.
In some embodiments, the display panel 100 includes opposing first and second surfaces, wherein the first surface is a display surface. The display device further includes a photosensitive member located on the second surface side of the display panel 100, the photosensitive member corresponding to the position of the first display area AA 1.
The photosensitive component can be an image acquisition device and is used for acquiring external image information. In some embodiments, the photosensitive component may be a Complementary Metal Oxide Semiconductor (CMOS) image capture Device, and in other embodiments, the photosensitive component may also be a Charge-coupled Device (CCD) image capture Device or other types of image capture devices. It will be appreciated that the photosensitive member may not be limited to an image capture device, and in some embodiments, the photosensitive member may also be an infrared sensor, a fingerprint recognition device, a proximity sensor, an infrared lens, a flood sensing element, an ambient light sensor, a dot matrix projector, and the like. In addition, the display device may further integrate other components, such as an earpiece, a speaker, etc., on the second surface side of the display panel 100.
According to the display device provided by the embodiment of the invention, the first display area AA1 can transmit light, so that the display panel 100 can integrate a photosensitive component on the back of the light-transmitting display area, and realize the screen-under integration of the photosensitive component of an image acquisition device, and meanwhile, the first display area AA1 can display pictures, thereby improving the display area of the display panel 100 and realizing the overall screen design of the display device.
In accordance with the above embodiments of the present invention, these embodiments are not exhaustive and do not 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 (10)
1. A display panel having a first display region capable of transmitting light, the display panel comprising:
a substrate;
a pixel unit layer on the substrate, the pixel unit layer including first sub-pixels in the first display region;
the filter layer is located on one side, deviating from the substrate, of the pixel unit layer and comprises a first black matrix unit and a first color resistance unit, the first color resistance unit is located in the first display area, the orthographic projection of the first sub-pixel on the substrate covers the orthographic projection of the first sub-pixel on the substrate, at least part of the first black matrix unit is located between the adjacent first color resistance units, and the first black matrix unit and the first color resistance unit are arranged at intervals.
2. The display panel according to claim 1, wherein the first black matrix unit and two adjacent first color resistance units have equal spacing;
preferably, the first color resist units are arranged along a first direction to form a first color resist row, the first color resist row is arranged along a second direction, the first direction is crossed with the second direction,
the first black matrix unit is located between two adjacent first color resistance rows, and the distance between the first black matrix unit and the two adjacent first color resistance rows is equal along the second direction.
3. The display panel according to claim 1, characterized in that the display panel further comprises:
a plurality of first signal lines arranged at intervals and positioned in the first display area, wherein the orthographic projection of the first black matrix unit on the substrate covers at least part of the orthographic projection of the first signal lines on the substrate;
preferably, the material of the first signal line is metal.
4. The display panel according to claim 3, wherein the first signal lines include a first routing portion and a second routing portion electrically connected to each other, and in two adjacent first signal lines, a pitch between the first routing portions is larger than a pitch between the second routing portions,
the orthographic projection of the first black matrix unit on the substrate covers at least part of the orthographic projection of the second routing part on the substrate.
5. The display panel according to claim 4, wherein the orthographic projection of the second wire portion on the substrate is spaced between the orthographic projections of the adjacent two first color resist units on the substrate,
the second routing portions between two adjacent first color resistance units are arranged to form a routing dense unit, and the spacing between the routing dense unit and the two adjacent first color resistance units in the direction parallel to the plane of the display panel is equal.
6. The display panel according to claim 5, wherein the first color resistance units are arranged along a first direction to form a first color resistance row, the first color resistance row is arranged along a second direction, the first direction intersects with the second direction, orthographic projections of at least a part of the first signal lines on the substrate sequentially pass through orthographic projections of the first color resistance rows on the substrate, the routing dense unit is located between two adjacent first color resistance units of the first color resistance rows, and the distance between two ends of the routing dense unit in the extension direction and the adjacent first color resistance units is equal;
or the first color resistance units are arranged along a first direction to form first color resistance rows, the first color resistance rows are arranged along a second direction, the first direction is crossed with the second direction, the orthographic projection of the routing dense unit on the substrate extends between the orthographic projections of two adjacent first color resistance rows on the substrate, and the outer contour of the routing dense unit is equal to the distance between two adjacent first color resistance rows.
7. The display panel according to any one of claims 4 to 6, wherein the second routing portion comprises a straight portion and a diagonal portion connected between the first routing portion and the straight portion,
the orthographic projection of the first black matrix unit on the substrate covers the orthographic projection of the straight line part on the substrate; or the orthographic projection of the first black matrix unit on the substrate covers at least part of the orthographic projection of the diagonal part on the substrate and the orthographic projection of the straight line part on the substrate respectively;
preferably, in two adjacent first signal lines with the same extending direction, the distance between the straight line parts is 0.6-0.8 times of the distance between the first routing parts;
preferably, the distance between two adjacent straight line parts is equal, and the distance between two adjacent straight line parts is 1-10 micrometers;
preferably, the first sub-pixel includes a plurality of kinds of different emission colors, the first color resistance unit includes a plurality of kinds of different colors, and an orthogonal projection of the first color resistance unit on the substrate covers an orthogonal projection of the first sub-pixel of the same color on the substrate.
8. The display panel according to claim 1, further comprising a second display region adjacent to the first display region, wherein a light transmittance of the second display region is smaller than a light transmittance of the first display region,
the display panel further comprises a polarizing layer, the polarizing layer is located in the second display area and located on one side, away from the substrate, of the pixel unit layer, the polarizing layer comprises a first opening, the first opening penetrates through the polarizing layer along a direction perpendicular to the plane of the display panel, and the filter layer is located in the first opening;
preferably, the light transmittance of the polarizing layer is less than the light transmittance of the filter layer;
preferably, the surface of the polarizing layer close to the substrate and the filter layer are arranged in the same layer.
9. The display panel of claim 1, wherein the display panel further has a second display region adjacent to the first display region, the second display region having a light transmittance smaller than that of the first display region, the pixel unit layer further includes a second sub-pixel located in the second display region,
the filter layer further comprises a second black matrix layer and a second color resistance unit, the second black matrix layer is located in the second display area and comprises a second opening, the second opening penetrates through the second black matrix layer along the direction perpendicular to the plane of the display panel, the second color resistance unit is filled in the second opening, and the orthographic projection of the second color resistance unit on the substrate covers the orthographic projection of the second sub-pixel on the substrate.
10. A display device, comprising: the display panel of any one of claims 1 to 9.
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| CN113921583A (en) * | 2021-11-22 | 2022-01-11 | 合肥维信诺科技有限公司 | Display panel, preparation method of display panel and display device |
| CN113937147A (en) * | 2021-11-05 | 2022-01-14 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN114050177A (en) * | 2021-11-22 | 2022-02-15 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN114864648A (en) * | 2022-05-31 | 2022-08-05 | 上海天马微电子有限公司 | Display panel and display device |
| CN116828919A (en) * | 2023-06-30 | 2023-09-29 | 惠科股份有限公司 | Display panel, manufacturing method thereof and display device |
| WO2024040795A1 (en) * | 2022-08-26 | 2024-02-29 | 武汉天马微电子有限公司 | Display panel and display apparatus |
| US12029098B2 (en) | 2021-03-26 | 2024-07-02 | Wuhan China Star Optoelectronics Semiconductr Display Technology Co., Ltd | Display panel and display device |
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| CN114050177A (en) * | 2021-11-22 | 2022-02-15 | 合肥维信诺科技有限公司 | Display panel and display device |
| 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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| CN116828919A (en) * | 2023-06-30 | 2023-09-29 | 惠科股份有限公司 | Display panel, manufacturing method thereof and display device |
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