CN117750816A - Display panel and display device - Google Patents
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- CN117750816A CN117750816A CN202311540525.XA CN202311540525A CN117750816A CN 117750816 A CN117750816 A CN 117750816A CN 202311540525 A CN202311540525 A CN 202311540525A CN 117750816 A CN117750816 A CN 117750816A
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Abstract
The invention relates to the technical field of display screens, in particular to a display panel and a display device. The driving substrate is used for driving the sub-pixels to emit light, and the overhang structure is arranged on the pixel definition layer and positioned between adjacent sub-pixels to play an isolating role. In the scope of the first virtual square, the first overhang structure surrounds the periphery of the second overhang structure, and the first overhang structure comprises a first metal layer and a first insulating layer which are sequentially stacked from a direction close to the driving substrate to a direction far away from the driving substrate, and part of adjacent sub-pixels are connected through the metal layer, so that the uniformity of the sub-pixels can be improved, and the IR Drop of the display panel is reduced. The second overhang structure comprises a second insulating layer arranged on the driving substrate and is positioned between partial adjacent sub-pixels, and compared with the first overhang structure, the size of the second overhang structure can be adjusted to control the aperture opening ratio of the display panel without considering the metal layer and the resistance thereof.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a display panel and a display device.
Background
In the manufacturing process of the organic electroluminescent diode (Organic Light Emitting Diode, abbreviated as OLED) display panel, the effective light emitting area (aperture ratio) of the display panel can be greatly increased by a maskless deposition and photoetching technology (English name photo lithography) patterning pixel mode, which is beneficial to greatly increasing the pixel density. In order to realize high resolution and colorization of the passive matrix OLED, a cathode isolation column structure is introduced, namely, a metal template is not used in device preparation, an insulating partition wall is manufactured on a substrate before an organic film and a metal cathode are evaporated, and finally, different pixels of the device are separated, and pixel array arrangement is realized. This cathode separator column structure is also referred to as a overhang structure.
The existing overhang structures comprising metal layers are arranged between the adjacent sub-pixels, but the design is unfavorable for adjusting the aperture ratio of the sub-pixels by adjusting the size of the overhang structures because the size and the resistance of the metal layers of the overhang structures are fixed. Therefore, how to conveniently adjust the aperture ratio of the sub-pixel on the basis of the existing overhang structure is a problem to be solved.
Disclosure of Invention
An object of the present application is to provide a display panel and a display device capable of facilitating adjustment of an aperture ratio of the display panel.
The application provides a display panel, including: a driving substrate; a pixel defining layer disposed on one side surface of the driving substrate, the pixel defining layer protruding from the driving substrate to form a pixel accommodating region; the overhang structure is arranged on the pixel definition layer and is positioned between two adjacent sub-pixels, the overhang structure comprises a first overhang structure and a second overhang structure, the first overhang structure comprises a first metal layer and a first insulating layer which are sequentially stacked from a direction close to the driving substrate to a direction far away from the driving substrate, and the first metal layer and the first insulating layer are provided with centers overlapped with the top points of a first virtual square; the second suspension structure comprises a second insulating layer arranged on the driving substrate, the second suspension structure and the first suspension structure are arranged at intervals, and the second suspension structure is provided with a center coinciding with the center of the first virtual square; and the plurality of sub-pixels are arranged in the pixel accommodating area, have centers overlapped with the edges of the first virtual square, and are positioned between adjacent first overhang structures and electrically connected through the first metal layer.
In an exemplary embodiment of the present application, in the first virtual block, the sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel, the first sub-pixel is configured to be two, the second sub-pixel and the third sub-pixel are configured to be one, the first virtual block has two corresponding groups of edges, the centers of the two first sub-pixels are located on one corresponding group of edges, and the centers of the second sub-pixel and the third sub-pixel are respectively located on the other corresponding group of edges.
In an exemplary embodiment of the present application, the center of the first sub-pixel, the center of the second sub-pixel, and the center of the third sub-pixel are all located on the center of the side of the first virtual square.
In an exemplary embodiment of the present application, the two first sub-pixels are disposed along a first direction, the second sub-pixel and the third sub-pixel are disposed along a second direction, a first virtual connection line is disposed between the two first sub-pixels, a second virtual connection line is disposed between the second sub-pixel and the third sub-pixel, and an intersection point of the first virtual connection line and the second virtual connection line coincides with a center of the first virtual square.
In an exemplary embodiment of the present application, the first subpixel is configured to emit green light, the second subpixel is configured to reflect red light, and the second subpixel is configured to generate blue light.
In one exemplary embodiment of the present application, the subpixel includes an anode, a light emitting layer, and a cathode disposed in a stack from proximate to the pixel defining layer to distal from the pixel defining layer, the cathode being electrically connected to the cathode of the first overhang structure.
In an exemplary embodiment of the present application, the display panel further includes a touch layer, where the touch layer includes a plurality of touch blocks disposed at intervals, and the touch blocks are located on the corresponding second overhang structures.
In an exemplary embodiment of the present application, the display panel further includes a connection bridge extending along an edge of the second virtual square, and the connection bridge is connected between adjacent touch blocks.
In an exemplary embodiment of the present application, the display panel further includes a connection bridge extending along a virtual connection line between two opposite vertices of the second virtual square, and the connection bridge is connected between adjacent touch blocks.
The application also provides a display device comprising the display panel.
The display panel and the display device have the following beneficial effects: the driving substrate is used for driving the sub-pixels to emit light, and the overhang structure is arranged between the adjacent sub-pixels on the pixel definition layer to play a role of isolation, wherein a first overhang structure of the overhang structure has a center which is coincident with the vertex of the first virtual square, and a second overhang structure has a center which is coincident with the center of the first virtual square. In the scope of the first virtual square, the first overhang structure surrounds the periphery of the second overhang structure, and the first overhang structure comprises a first metal layer and a first insulating layer which are sequentially stacked from a direction close to the driving substrate to a direction far away from the driving substrate, and adjacent sub-pixels are connected through the first metal layer, so that uniformity of the sub-pixels can be improved, and IR Drop of the display panel is reduced. The second overhang structure comprises a second insulating layer arranged on the driving substrate and is positioned between partial adjacent sub-pixels, and compared with the first overhang structure, the size of the second overhang structure can be adjusted to control the aperture opening ratio of the display panel without considering the metal layer and the resistance thereof.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic plan view of an embodiment of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic plan view of another embodiment of a display panel according to an embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a first overhang structure in an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of a second overhang structure in an embodiment of the invention;
FIG. 5 is a schematic plan view of an embodiment of a touch layer according to the present invention;
fig. 6 is a schematic plan view of another embodiment of a touch layer according to an embodiment of the invention.
Reference numerals illustrate:
a driving substrate 100; a pixel definition layer 200; a suspension structure 300; a first overhang structure 310; a first metal layer 311; a first insulating layer 312; a second overhang structure 320; a second insulating layer 321; a first virtual block 400; a sub-pixel 500; a first subpixel 510; a second subpixel 520; a third sub-pixel 530; an anode 501; a light emitting layer 502; a cathode 503; an insulating protective layer 504; a touch layer 600; a touch block 610; a connection bridge 620; a second virtual block 700.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
The present application is further described in detail below with reference to the drawings and specific examples. It should be noted that the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
It should be noted that: references herein to "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
In the manufacturing process of the organic electroluminescent diode (Organic Light Emitting Diode, abbreviated as OLED) display panel, the effective light emitting area (aperture ratio) of the display panel can be greatly increased by a maskless deposition and photoetching technology (English name photo lithography) patterning pixel mode, which is beneficial to greatly increasing the pixel density. In order to realize high resolution and colorization of the passive matrix OLED, a cathode isolation column structure is introduced, namely, a metal template is not used in device preparation, an insulating partition wall is manufactured on a substrate before an organic film and a metal cathode are evaporated, and finally, different pixels of the device are separated, and pixel array arrangement is realized. This cathode separator column structure is also referred to as a overhang structure.
The existing overhang structures comprising metal layers are arranged between the adjacent sub-pixels, but the design is unfavorable for adjusting the aperture ratio of the sub-pixels by adjusting the size of the overhang structures because the size and the resistance of the metal layers of the overhang structures are fixed. Therefore, how to conveniently adjust the aperture ratio of the sub-pixel on the basis of the existing overhang structure is a problem to be solved.
In order to solve the above technical problems, referring to fig. 1 to 4, a display panel is provided, which includes a driving substrate 100, a pixel defining layer 200, an overhang structure 300, and a plurality of sub-pixels 500. The pixel defining layer 200 is disposed on a side surface of the driving substrate 100, and the pixel defining layer 200 protrudes from the driving substrate 100 to form a pixel accommodating area. The overhang structure 300 is disposed on the pixel defining layer 200, the overhang structure 300 includes a first overhang structure 310 and a second overhang structure 320, the first overhang structure 310 includes a first metal layer 311 and a first insulating layer 312 sequentially stacked from a direction close to the driving substrate 100 to a direction away from the driving substrate 100, and has a center overlapping with an apex of the first dummy square 400. The second overhang structure 320 includes a second insulating layer 321 provided on the driving substrate 100, the second overhang structure 320 being spaced apart from the first overhang structure 310, the second overhang structure 320 having a center coinciding with a center of the first dummy block 400. The plurality of sub-pixels 500 are disposed in the pixel accommodating region, and the sub-pixels 500 have centers overlapping with edges of the first dummy square 400 and are electrically connected between adjacent first overhang structures 310 through the first metal layer 311.
The driving substrate 100 is used for driving the sub-pixels 500 to emit light, and the overhang structure 300 is disposed between adjacent sub-pixels 500 on the pixel defining layer 200 to perform isolation, wherein a first overhang structure 310 of the overhang structure 300 has a center coinciding with a vertex of the first dummy block 400, and a second overhang structure 320 has a center coinciding with a center of the first dummy block 400. In the range of the first dummy block 400, the first overhang structure 310 surrounds the second overhang structure 320, and the first overhang structure 310 includes the first metal layer 311 and the first insulating layer 312 sequentially stacked from the direction close to the driving substrate 100 to the direction far from the driving substrate 100, and adjacent sub-pixels 500 are connected by the first metal layer 311, so that uniformity of the sub-pixels 500 can be improved, and the display panel IR Drop can be reduced. The second overhang structure 320 includes a second insulating layer 321 disposed on the driving substrate 100 and located between a part of adjacent sub-pixels 500, and compared with the first overhang structure 310, the size of the second overhang structure 320 can be adjusted to control the aperture ratio of the display panel without considering the metal layer and the resistance thereof.
In some embodiments, referring to fig. 1 or 2, the first dummy block 400 is a reference pattern drawn on the display panel and has no substantial structure, configured as a rectangular quadrangle, the first dummy block 400 includes four vertexes A, B, C, D, the center of each first overhang structure 310 coincides with the vertexes a, B, C and D, respectively, and two first overhang structures 310 located at adjacent vertexes are spaced apart to form a space. A second overhang structure 320 is provided at a center of the first overhang structure 310 around the formation, the second overhang structure 320 being located on a center of the first dummy block 400, i.e., the second overhang structure 320 is located on an intersection point E of a line connecting the vertices a and C and a line connecting the vertices B and D of the first dummy block 400. The center of the sub-pixel 500 is located on the side of the first dummy block 400 and between the adjacent first overhang structures 310, and the first overhang structures 310, the second overhang structures 320, and the sub-pixel 500 on the plurality of first dummy blocks 400 are disposed to extend in the first direction and the second direction to form a display panel.
In some embodiments, the material of the first metal layer 311 may include, but is not limited to, al (aluminum), au (gold), ag (silver), mgAg (almag), and the like. The materials of the first insulating layer 312 and the second insulating layer 321 are the first insulating layer 312411 and the second insulating layer 321413, and may be one of a non-conductive organic material and a non-conductive inorganic material. Wherein the non-conductive inorganic material includes, but is not limited to, an inorganic silicon-containing material. For example, the silicon-containing material comprises an oxide or nitride of silicon or a combination thereof. Wherein the non-conductive organic material comprises a negative photosensitive organic material. For example, negative photosensitive organic materials include, but are not limited to, negative photoresist. In the first overhang structure 310, since the first metal layer 311 having a metal material such as Al (aluminum), au (gold), ag (silver), mgAg (aluminum magnesium alloy) is not easily sized in the process, and the uniformity of the display panel may be affected in consideration of the size of the first metal layer 311. The display panel is as far as possible not adjusted in the art of the existing design. The second overhang structure 320 is only made of a non-conductive organic material or a non-conductive inorganic material, so that the second overhang structure can be isolated in design, and the size of the second overhang structure is convenient to adjust. So that the aperture ratio between the sub-pixels 500 can be adjusted by adjusting the size of the second overhang structure 320.
In some embodiments, the driving substrate 100 includes a substrate and a driving circuit layer. The display panel having the substrate and the driving circuit layer is an active OLED.
In another embodiment, the driving circuit layer of the driving substrate 100 is separately provided. The display panel having a substrate but not including a driving circuit layer is a passive OLED. The passive OLED includes a plurality of parallel spaced anodes 501310 and a plurality of parallel spaced cathodes 503330, the anodes 501310 and cathodes 503330 being arranged crosswise to form an addressing circuit for scan driving through an external PCB circuit board.
Further, the substrate may be a glass substrate or a flexible substrate. Wherein the material of the flexible substrate is Polyimide (PI). The driving circuit layer may be a thin film transistor (english name Thin Film Transistor, TFT) circuit layer for driving the light emitting layer 502 of the OLED. The specific TFT circuit layer includes a plurality of driving circuit units arranged in an array, and each driving circuit unit may include a TFT device and a capacitor. Each driving circuit unit corresponds to one anode 501310 and one light emitting layer 502. The TFT device is of a low temperature polysilicon (Low Temperature Poly-silicon, LTPS) type, or a Metal oxide semiconductor (Metal-Oxide Semiconductor, MOS) type, for example, a Metal oxide semiconductor type of Indium Gallium Zinc Oxide (IGZO).
In some embodiments, the material of the pixel defining layer 200 may be one of an organic material or an inorganic material having an inorganic coating disposed thereon. The organic material of the pixel defining layer 200 includes, but is not limited to, polyimide. The inorganic material of the pixel defining layer 200 includes, but is not limited to, silicon oxide (SiO 2 ) Silicon nitride (Si) 3 N 4 ) Silicon oxynitride (Si) 2 N 2 O), magnesium fluoride (MgF) 2 ) Or a combination thereof.
In some implementations, as shown with reference to fig. 3, in the first overhang structure 310, the first insulating layer 312 has a bottom along the bottom near the first metal layer 311 and a top away from the first metal layer 311, and sidewalls of the bottom are recessed relative to sidewalls of the top. The bottom of the first insulating layer 312 covers only a portion of the first metal layer 311, and the projection of the first metal layer 311 on the driving substrate 100 completely covers the projection of the bottom of the first insulating layer 312 on the driving substrate 100, so that the cathode 503 of the first sub-pixel 510 may overlap the area of the first metal layer 311 not covered by the bottom of the first insulating layer 312.
Further, the projection of the top of the first insulating layer 312 on the driving substrate 100 completely covers the projection of the first metal layer 311 on the driving substrate 100, and at least part of the top of the first insulating layer 312 is suspended relative to the bottom of the first insulating layer 312, so that the evaporation angle can be changed by the top of the first insulating layer 312 during the evaporation deposition.
In some embodiments, referring to fig. 4, in the second overhang structure 320, the second insulating layer 321 has a top far from the pixel defining layer 200 and a bottom near the pixel defining layer 200, the bottom of the second insulating layer 321 is disposed in contact with the pixel defining layer 200, a projection of the top of the second insulating layer 321 onto the driving substrate 100 completely covers a projection of the bottom of the second insulating layer 321 onto the driving substrate 100, and at least a portion of the top of the first insulating layer 312 is suspended with respect to the bottom of the first insulating layer 312 so that an evaporation angle can be changed by the top of the first insulating layer 312 at the time of evaporation deposition.
In some embodiments, the display panel includes a plurality of pixels for emitting light of different colors, the plurality of pixels emitting light to display an image. Each pixel is overlapped and mixed by the sub-pixels 500 of three colors of red, green and blue to realize the display of a white picture, and different color pictures are displayed by controlling the light emitting degree of the sub-pixels 500 of different colors.
From the above, the driving substrate 100 includes a substrate and a driving circuit layer, three kinds of light rays of red, green and blue are emitted by driving the sub-pixels 500 through the driving circuit layer, and different color pictures are displayed by controlling the light emitting degrees of the sub-pixels 500 of different colors. Under the reference of the first dummy block 400, the pair of first overhang structures 310 are disposed at the vertices of the first dummy block 400, the second overhang structure 320 is disposed at the center of the first dummy block 400, and the sub-pixel 500 is disposed between adjacent first overhang structures 310, respectively. So that the aperture ratio of the display panel can be increased by adjusting the volume size of the second overhang structure 320.
In some embodiments, as shown in conjunction with fig. 1 and 2, in the first virtual block 400, the sub-pixel 500 includes a first sub-pixel 510, a second sub-pixel 520, and a third sub-pixel 530, the first sub-pixel 510 is configured in two, the second sub-pixel 520 and the third sub-pixel 530 are configured in one, the first virtual block 400 has two corresponding sets of sides, the centers of the two first sub-pixels 510 are located on one of the corresponding sets of sides, and the centers of the second sub-pixel 520 and the third sub-pixel 530 are respectively located on the other corresponding set of sides. In the first virtual block 400, the first sub-pixel 510 may be extended along the first direction and the second direction, and when the first sub-pixel 510 is arranged along the first direction, the second sub-pixel 520 and the third sub-pixel 530 are staggered along the second direction; when the first sub-pixel 510 is disposed along the second direction, the second sub-pixel 520 and the third sub-pixel 530 are staggered along the first direction. The second sub-pixel 520, the third sub-pixel 530 and the two first sub-pixels 510 are correspondingly distributed on the sides AB, BC, BD and AD of the first virtual square 400 according to the rule described above. One pixel is formed by adjacent first, second and third sub-pixels 510, 520 and 530 for emitting light of different colors.
Further, the center of the first sub-pixel 510, the center of the second sub-pixel 520, and the center of the third sub-pixel 530 are located on the center of the side of the first virtual square 400. In order to be able to form uniformly distributed pixels on the display panel, a more uniform picture can be displayed on the display panel by uniformly distributed pixels.
In some embodiments, as shown in fig. 1, two first sub-pixels 510 are disposed on two corresponding sides of the first virtual square 400 along the second direction, and the centers of the two first sub-pixels 510 coincide with the centers of the two corresponding sides; the second sub-pixel 520 and the third sub-pixel 530 are disposed on two corresponding sides of the first virtual square 400 along the first direction, respectively, and the centers of the second sub-pixel 520 and the third sub-pixel 530 coincide with the centers of the two corresponding sides. By the above two designs, the sub-pixels 500 and the overhang structure 300 distributed in the single first dummy block 400 are arranged to form a display panel.
In another embodiment, as shown in fig. 2, two first sub-pixels 510 are disposed along a first direction, a second sub-pixel 520 and a third sub-pixel 530 are disposed along a second direction, a first virtual line is disposed between the two first sub-pixels 510, a second virtual line is disposed between the second sub-pixel 520 and the third sub-pixel 530, and an intersection point of the first virtual line and the second virtual line coincides with a center of the first virtual square 400. The two first sub-pixels 510 are disposed on two corresponding sides of the first virtual square 400 along the first direction, and the centers of the two first sub-pixels 510 are coincident with the centers of the two corresponding sides; the second sub-pixel 520 and the third sub-pixel 530 are disposed on two corresponding sides of the first virtual square 400 along the second direction, respectively, and the centers of the second sub-pixel 520 and the third sub-pixel 530 coincide with the centers of the two corresponding sides. By the above two designs, the sub-pixels 500 and the overhang structure 300 distributed in the single first dummy block 400 are arranged to form a display panel.
In some embodiments, the first subpixel 510 is configured to emit green light, the second subpixel 520 is configured to reflect red light, and the third subpixel 530 is configured to emit blue light. Different color pictures are displayed by controlling the light emission levels of the different color sub-pixels 500.
In some embodiments, the sub-pixel 500 includes an anode 501, a light emitting layer 502, and a cathode 503 stacked from near the pixel defining layer 200 to far from the pixel defining layer 200, the cathode 503 being electrically connected to the cathode 503 of the first overhang structure 310. The anode 501 is disposed on the pixel defining layer 200, the pixel defining layer 200 covers a portion of the anode 501, the organic light emitting layer 502 is disposed on the anode 501, and the cathode 503 is disposed on the organic light emitting layer 502, thereby forming the sub-pixel 500. By electrically connecting the cathode 503 with the cathode 503 of the first overhang structure 310, uniformity of the display panel can be increased.
In some embodiments, as shown in connection with fig. 3 or 4, the sub-pixel 500 further includes an insulating protection layer 504, where the insulating protection layer 504 is disposed on the cathode 503, and the insulating protection layer 504 is used to perform an insulating protection function on the cathode 503 and the overhang structure 300.
In some embodiments, the anode 501 is disposed between the pixel definition layer 200 and the substrate. The anodes 501 are disposed at intervals on one side surface of the substrate. The material of anode 501 includes, but is not limited to, chromium, titanium, gold, silver, copper, aluminum, ITO, combinations thereof, or other suitable conductive materials. The organic light Emitting Layer 502 is for Emitting red, blue, or green light when energized, and the organic light Emitting Layer 502 may include one or more of an HIL (Hole Injection Layer ), an HTL (Hole Transfer Layer, hole transport Layer), an EML (emission Layer), and an ETL (Electron Transfer Layer, electron transport Layer). The cathode 503 is disposed on a side of the organic light emitting layer 502 remote from the anode 501. Materials of the cathode 503 include, but are not limited to, chromium, titanium, gold, silver, copper, aluminum, ITO, combinations thereof, or other suitable conductive materials. The material of the cathode 503 may be the same as that of the anode 501, or may be different from that of the anode, and specifically may be set according to actual conditions.
In some embodiments, the pixel defining layer 200 is fabricated on the anode 501 of the sub-pixel 500, the pixel defining layer 200 is exposed and developed such that the pixel defining layer 200 forms a pixel opening in the pixel receiving area over the anode 501 of each sub-pixel 500, and the pixel defining layer 200 partially covers the anode 501 of the pixel 500, the organic light emitting layer 502 is formed by vapor deposition of an organic light emitting material over the pixel defining layer 200 and the anode 501, and the cathode 503 is formed by vapor deposition of a cathode 503 material over the organic light emitting layer 502.
In some embodiments, referring to fig. 5 and 6, the display panel further includes a touch layer 600, where the touch layer 600 includes a plurality of touch blocks 610 disposed at intervals, and the touch blocks 610 are located on the corresponding second overhang structures 320. The second overhang structures 320 are not provided with the first metal layer 311, so that the first metal layer 311 can be used for arranging a touch layer or for routing the touch layer, a signal blank area is arranged above the second overhang structures 320, and the touch blocks 610 of the touch layer 600 are arranged above each corresponding pair of second overhang structures 320, so that the routing space of the display panel can be saved. The touch layer 600 may be two layers stacked, or may be a single layer stacked with the layers, and when the touch layer 600 is two layers stacked, two touch blocks 610 corresponding to the two layers form a capacitance structure; when the touch layer 600 is a single layer disposed on the same layer, two adjacent touch blocks 610 form a capacitive structure. Thereby receiving and transmitting the touch signal.
In some embodiments, as shown in fig. 5, the display panel further includes a connection bridge 620, which extends along an edge of the second virtual square 700, and the connection bridge 620 is connected between adjacent touch pads 610. The second dummy block 700 is similar to the first dummy block 400, and is a reference pattern, wherein the first dummy block 400 is a reference pattern corresponding to the overhang structure 300 and the sub-pixel 500. The second virtual square 700 corresponds to the reference pattern on the touch layer 600. Wherein each touch pad 610 has a center coincident with the vertex of the second virtual square 700. The touch pad 610 is a square block that can be modeled as a rectangular quadrilateral, and the center of the touch pad 610 is the intersection of the connection lines of vertices corresponding to the rectangular quadrilateral. The connection bridge 620 extends along the edge of the second virtual square 700 and is connected between the adjacent touch blocks 610 to form touch units, and the plurality of touch units respectively form receiving electrodes or transmitting electrodes for receiving or transmitting touch signals.
In another embodiment, as shown in fig. 6, the display panel further includes a connection bridge 620, which extends along a virtual connection line between two opposite vertices of the second virtual square 700, and the connection bridge 620 is connected between adjacent touch pads 610. The touch pad 610 is a square block that can be modeled as a rectangular quadrilateral, and the center of the touch pad 610 is the intersection of the connection lines of vertices corresponding to the rectangular quadrilateral. The connection bridge 620 extends along a virtual connection line between two opposite vertices of the second virtual square 700 and connects the two adjacent touch blocks 610 to form a touch unit, where a plurality of touch units respectively form a receiving electrode or a transmitting electrode for receiving or transmitting touch signals.
In this application, the driving substrate 100 includes a substrate and a driving circuit layer, and the sub-pixels 500 are driven to emit three kinds of light rays of red, green and blue by the driving circuit layer, and different color pictures are displayed by controlling the light emitting degrees of the sub-pixels 500 of different colors. Under the reference of the first dummy block 400, the pair of first overhang structures 310 are disposed at the vertices of the first dummy block 400, the second overhang structure 320 is disposed at the center of the first dummy block 400, and the sub-pixel 500 is disposed between the adjacent first overhang structures 310, respectively. So that the aperture ratio of the display panel can be increased by adjusting the volume size of the second overhang structure 320. The second overhang structures 320 may be provided with the touch blocks or be used for routing without the first metal layer 311, so that a signal blank area can be formed on the second overhang structures 320 conveniently, and the touch blocks 610 of the touch layer 600 are disposed above each corresponding second overhang structure 320, so that routing space of the display panel can be saved.
The application further provides a display device, including the above display panel, which is not described herein.
In the present application, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In the description of the present specification, reference to the term "some embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the embodiments by one of ordinary skill in the art within the scope of the application, and therefore all changes and modifications that fall within the spirit and scope of the invention as defined by the claims and the specification of the application are intended to be covered thereby.
Claims (10)
1. A display panel, comprising:
a driving substrate;
a pixel defining layer disposed on one side surface of the driving substrate, the pixel defining layer protruding from the driving substrate to form a pixel accommodating region;
an overhang structure disposed on the pixel defining layer, the overhang structure comprising:
a first overhang structure including a first metal layer and a first insulating layer stacked in this order from a direction close to the drive substrate to a direction away from the drive substrate, the first overhang structure having a center overlapping with a vertex of a first virtual square;
the second suspension structure comprises a second insulating layer arranged on the driving substrate, the second suspension structure and the first suspension structure are arranged at intervals, and the second suspension structure is provided with a center coincident with the center of the first virtual square;
and the plurality of sub-pixels are arranged in the pixel accommodating area, have centers overlapped with the edges of the first virtual square, and are positioned between adjacent first overhang structures and electrically connected through the first metal layer.
2. The display panel of claim 1, wherein in a first virtual square, the sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel, the first sub-pixel is configured in two, the second sub-pixel and the third sub-pixel are configured in one, the first virtual square has two corresponding sets of sides, centers of the two first sub-pixels are located on one of the corresponding sets of sides, and centers of the second sub-pixel and the third sub-pixel are respectively located on the other corresponding set of sides.
3. The display panel of claim 2, wherein the center of the first subpixel, the center of the second subpixel, and the center of the third subpixel are all located on the center of an edge of the first virtual square.
4. The display panel of claim 2, wherein the two first sub-pixels are arranged along a first direction, the second sub-pixel and the third sub-pixel are arranged along a second direction, a first virtual connection line is arranged between the two first sub-pixels, a second virtual connection line is arranged between the second sub-pixel and the third sub-pixel, and an intersection point of the first virtual connection line and the second virtual connection line coincides with a center of the first virtual square.
5. The display panel of claim 2, wherein the first subpixel is configured to emit green light, the second subpixel is configured to reflect red light, and the second subpixel is configured to emit blue light.
6. The display panel of claim 1, wherein the sub-pixel comprises an anode, a light emitting layer, and a cathode disposed in a stack from proximate to the pixel defining layer to distal from the pixel defining layer, the cathode being electrically connected to the cathode of the first overhang structure.
7. The display panel of claim 1, further comprising a touch layer comprising a plurality of touch tiles disposed in spaced relation, the touch tiles being positioned on the corresponding second overhang structures.
8. The display panel of claim 7, further comprising a bridge extending along an edge of the second virtual square, the bridge being connected between adjacent ones of the touch tiles.
9. The display panel according to claim 7, further comprising a connection bridge extending along a virtual line between two opposite vertices of the second virtual square, the connection bridge being connected between adjacent touch pads.
10. A display device comprising the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311540525.XA CN117750816A (en) | 2023-11-16 | 2023-11-16 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311540525.XA CN117750816A (en) | 2023-11-16 | 2023-11-16 | Display panel and display device |
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| Publication Number | Publication Date |
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| CN117750816A true CN117750816A (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311540525.XA Pending CN117750816A (en) | 2023-11-16 | 2023-11-16 | Display panel and display device |
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| CN (1) | CN117750816A (en) |
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