Display panel and display device

Abstract

A display panel and a display device. The display panel includes a base substrate, and a first color filter layer and a second color filter layer located on the base substrate. The second color filter layer includes a first sub-color filter portion and a second sub-color filter portion. The first color filter layer includes a third sub-color filter portion extending in a direction, the third sub-color filter portion including multiple spacers. The first sub-color filter portion covers the third sub-color filter portion except for the spacers, and the second sub-color filter portion fills the multiple spacers.

Description

[0001] This application is a divisional application of Chinese patent application No. 201980001456.0, whose invention name is “Light-emitting diode display panel, its manufacturing method, and display device”, which entered the Chinese national phase on August 26, 2019. Chinese patent application No. 201980001456.0 is an application entering the Chinese national phase of international application No. PCT / CN2019 / 102291, with an international filing date of August 23, 2019. Technical Field

[0002] At least one embodiment of the present disclosure relates to a display panel and a display device. Background Art

[0003] Currently, color displays using silicon-based active-matrix organic light-emitting diodes (AMOLEDs) are typically achieved using white organic light-emitting diodes (WOLEDs) in combination with color filters (CFs). Microdisplays, including silicon-based AMOLEDs, have broad market applications and are particularly well-suited for applications such as helmet-mounted displays, stereoscopic displays, and eyewear-style displays. Summary of the Invention

[0004] At least one embodiment of the present disclosure provides a display panel and a display device.

[0005] Embodiments of the present disclosure provide a display panel. The display panel includes: a base substrate, a first color filter layer, and a second color filter layer. The first color filter layer is located on the base substrate, and the second color filter layer is located on the base substrate. The second color filter layer includes a first sub-color filter portion and a second sub-color filter portion. The first color filter layer includes a third sub-color filter portion extending along a direction, and the third sub-color filter portion includes multiple spacers. The first sub-color filter portion covers the portion of the third sub-color filter portion excluding the spacers, and the second sub-color filter portion fills the multiple spacers.

[0006] In some examples, the first color filter layer includes a green color filter layer, and the second color filter layer includes a red color filter layer.

[0007] In some examples, the first sub-color filter portion located between two adjacent second sub-color filter portions arranged along the extension direction of the third sub-color filter portion is a continuous structure.

[0008] In some examples, the display panel includes a display area and a peripheral area surrounding the display area, the first color filter layer includes a first border color filter located in the peripheral area, and the second color filter layer includes a second border color filter located in the peripheral area.

[0009] In some examples, the display panel further includes: a plurality of sub-pixels located in the display area. The display panel includes a plurality of sub-color resist layers arranged in a one-to-one correspondence with the plurality of sub-pixels, the plurality of sub-color resist layers including a plurality of first sub-color resist layers, the plurality of first sub-color resist layers being portions of the first color filter layer; and along an extension direction of the third sub-color filter portion, a size of a portion of at least one spacer filled with the second sub-color filter portion is not less than a size of at least one first sub-color resist layer.

[0010] In some examples, a dimension of the at least one first sub-color resist layer along the first direction is less than 10 micrometers.

[0011] In some examples, along a direction perpendicular to the base substrate, a thickness of the first sub-color filter portion is equal to a thickness of the second sub-color filter portion.

[0012] In some examples, the display panel further includes: a third color filter layer located on a side of the first color filter layer away from the base substrate. The third color filter layer includes a portion covering at least one of the first color filter layer, the second color filter layer, and the spacer.

[0013] In some examples, the third color filter layer covers the first color filter layer, the second color filter layer, and the spacer.

[0014] In some examples, the plurality of sub-color resist layers include a plurality of second sub-color resist layers, which are part of the second color filter layer, and at least a portion of the second sub-color resist layers does not overlap with the first sub-color resist layer.

[0015] In some examples, a surface of the second sub-color filter portion away from the base substrate is flush with a surface of the third sub-color filter portion away from the base substrate.

[0016] In some examples, the third color filter layer includes a blue color filter layer.

[0017] An embodiment of the present disclosure provides a display panel. The display panel includes a base substrate, and a plurality of sub-pixels, a first color filter layer, and a second color filter layer located on the base substrate. The base substrate includes a display area and a peripheral area surrounding the display area; a plurality of sub-pixels are located in the display area; the first color filter layer is located on the base substrate; and the second color filter layer is located on the base substrate. The display panel includes a plurality of sub-color filter layers arranged in a one-to-one correspondence with the plurality of sub-pixels, the plurality of sub-color filter layers include a plurality of first sub-color filter layers, and the plurality of first sub-color filter layers are part of the first color filter layer; the first color filter layer includes at least a first strip portion extending continuously along a first direction, and the second color filter layer includes at least a second strip portion extending continuously along a second direction, the first direction and the second direction intersect; along the first direction, the length of the first strip portion is greater than the size of at least one first sub-color filter layer; along the second direction, the length of the second strip portion is greater than the size of at least one first sub-color filter layer.

[0018] In some examples, the first color filter layer includes at least one strip-shaped gap extending along the second direction, and the second color filter layer includes a first sub-color filter portion and a second sub-color filter portion, the first sub-color filter portion covers part of the first color filter layer, and the second sub-color filter portion fills the strip-shaped gap.

[0019] In some examples, the first color filter layer includes a green color filter layer, and the second color filter layer includes a red color filter layer.

[0020] In some examples, along the first direction, a size of a portion of at least one strip-shaped interval filled by the second sub-color filter portion is not smaller than a size of the at least one first sub-color filter layer.

[0021] In some examples, a dimension of the at least one first sub-color resist layer along at least one of the first direction and the second direction is less than 10 micrometers.

[0022] In some examples, along a direction perpendicular to the base substrate, a thickness of the first sub-color filter portion is equal to a thickness of the second sub-color filter portion.

[0023] In some examples, the display panel further includes: a third color filter layer located on a side of the first color filter layer away from the base substrate, the third color filter layer covering the first color filter layer, the second color filter layer, and the strip spacers.

[0024] At least one embodiment of the present disclosure provides a display device, including the display panel provided by any of the above examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0026] Figure 1 A schematic diagram of a partial structure of a color film structure of a silicon-based organic light-emitting diode display panel;

[0027] Figure 2A A schematic diagram of the planar structure of a first color filter layer of a color filter structure provided according to an example of an embodiment of the present disclosure;

[0028] Figure 2B for Figure 2A The schematic diagram of the cross-sectional structure of the first color filter layer taken along line AA is shown;

[0029] Figure 2C is a schematic diagram of a planar structure of a first color filter layer according to another example of an embodiment of the present disclosure;

[0030] Figure 2D is a schematic diagram of a planar structure of a first color filter layer according to another example of an embodiment of the present disclosure;

[0031] Figure 3A This is a schematic diagram of the planar structure of the second color filter layer in an example of an embodiment of the present disclosure;

[0032] Figure 3B for Figure 3A The schematic diagram of the cross-sectional structure of the second color filter layer taken along line AA is shown;

[0033] Figure 4A This is a schematic diagram of the planar structure of the second color filter layer in another example of an embodiment of the present disclosure;

[0034] Figure 4B for Figure 4A The schematic diagram of the cross-sectional structure of the second color filter layer taken along line AA is shown;

[0035] Figure 5A This is a schematic diagram of the planar structure of the second color filter layer in another example of an embodiment of the present disclosure;

[0036] Figure 5B for Figure 5A The schematic diagram of the cross-sectional structure of the second color filter layer taken along line AA is shown;

[0037] Figure 6A This is a schematic diagram of the planar structure of the third color filter layer in an example of an embodiment of the present disclosure;

[0038] Figure 6B for Figure 6AThe schematic diagram of the cross-sectional structure of the third color filter layer taken along line AA is shown;

[0039] Figure 7A This is a schematic diagram of the planar structure of the third color filter layer in another example of an embodiment of the present disclosure;

[0040] Figure 7B for Figure 7A The schematic diagram of the cross-sectional structure of the third color filter layer taken along line AA is shown;

[0041] Figure 8A and Figure 8B A schematic diagram of a color filter structure provided as an example of another embodiment of the present disclosure;

[0042] Figure 8C A schematic cross-sectional view of a color filter structure provided for another example of another embodiment of the present disclosure;

[0043] Figure 9 A partial cross-sectional schematic diagram of a light emitting diode display panel provided in one embodiment of the present disclosure;

[0044] Figure 10 A schematic diagram of a circuit principle of a silicon-based organic light-emitting display panel provided in one embodiment of the present disclosure;

[0045] Figure 11 A circuit diagram of a voltage control circuit and a pixel circuit provided in one embodiment of the present disclosure;

[0046] Figure 12 A flow chart of a light emitting diode display panel provided by one embodiment of the present disclosure. DETAILED DESCRIPTION

[0047] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0048] Unless otherwise defined, technical or scientific terms used in this disclosure should have the ordinary meanings understood by people with ordinary skills in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are simply used to distinguish different components. The words "include" or "comprising" and similar terms mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0049] Embodiments of the present disclosure provide a display panel and a display device. A light-emitting diode display panel includes: a substrate, a plurality of sub-pixels located on the substrate, a color resist layer located on a side of the plurality of sub-pixels away from the substrate, and a light-blocking structure. The substrate includes a display area and a peripheral area surrounding the display area; a plurality of sub-pixels are located in the display area, at least one of the plurality of sub-pixels includes: a light-emitting element including a first electrode, a light-emitting functional layer, and a second electrode stacked in sequence, the first electrode being closer to the substrate than the second electrode; and a driving circuit located between the light-emitting element and the substrate, the driving circuit including a driving transistor and a storage capacitor, the driving transistor including a source, a drain, and a gate, one of the source and the drain being coupled to the first electrode, the gate being coupled to the storage capacitor, and the storage capacitor being configured to store a data signal; a color resist layer located on a side of the second electrode away from the substrate, and light emitted by the light-emitting element is emitted through the color resist layer; and a light-blocking structure located in the peripheral area and is a ring-shaped structure surrounding the plurality of sub-pixels. The light-blocking structure includes a first light-blocking structure and a second light-blocking structure, the first light-blocking structure including at least one first gap extending from the display area to the peripheral area, the second light-blocking structure at least filling the first gap. The embodiment of the present disclosure designs the shape of the first light-blocking structure as a non-closed ring, so that the color film layer coated on the display area can be more uniform during the formation of subsequent other color film layers, thereby preventing the display device including the light-emitting diode display panel from having uneven display.

[0050] The display panel and the display device provided by the embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0051] Figure 1 This is a partial structural diagram of a color filter structure of a silicon-based organic light-emitting diode display panel provided by an embodiment of the present disclosure. Figure 1 As shown, the organic light-emitting diode display panel includes a display area 11 and a peripheral area 12 surrounding the display area 11. The color filter structure 10 includes a pixel color filter (not shown) located in the display area 11 and an annular frame color filter (i.e., a light-blocking structure) located in the peripheral area 12. The frame color filter is used to cover structures in the peripheral area 12 of the display panel, such as the anode wiring connecting the light-emitting elements of the display panel and the pixel sensing circuit, to prevent light reflection or leakage in the peripheral area.

[0052] For example, to achieve better shielding effects in the peripheral areas of silicon-based organic light-emitting diode display panels, the frame color film generally includes at least two layers of color film stacks. When the frame color film includes two or three layers of color film stacks, the thickness of the frame color film in the peripheral area is 2 to 3 times that of the pixel color film in the display area, forming a barrier around the display area.

[0053] Figure 2A Schematic diagram of the planar structure of the first color filter layer of the color filter structure provided according to an embodiment of the present disclosure. Figure 2B for Figure 2A The cross-sectional structure diagram of the first color filter layer along line AA is shown in FIG. Figure 2A and Figure 2B As shown, the color filter structure includes a transparent base layer 100 and a first color filter layer 200 located on the transparent base layer 100. The transparent base layer 100 includes a display area 101 and a peripheral area 102 surrounding the display area 101. For example, the display area 101 is the area for displaying images, i.e., the light emitting area; the peripheral area 102 is the area where images are not displayed, i.e., the non-light emitting area.

[0054] like Figure 2A and Figure 2B As shown, the first color filter layer 200 includes a first pixel color filter 210 located in the display area 101 and a first frame color filter 220 located in the peripheral area 102. The first frame color filter 220 is an annular color filter surrounding the display area 101, which is used to cover the structure of the peripheral area of ​​the display panel including the above-mentioned color filter structure, such as the wiring for connecting the light-emitting elements, and the sensing circuit structure for detecting the current of the pixel located in the sensing area (the sensing circuit structure can be connected to the temperature sensor), etc., to prevent light reflection or light leakage in the peripheral area. That is, the light-emitting diode display panel provided by the embodiment of the present disclosure includes a color resist layer located in the display area 101, and the color resist layer includes a plurality of sub-color resist layers corresponding to a plurality of sub-pixels one by one, and the adjacent plurality of sub-color resist layers at least partially do not overlap, and the plurality of sub-color resist layers include a plurality of first sub-color resist layers. The following content of the embodiment of the present disclosure is described by taking the first sub-color resist layer as the first pixel color filter 210 as an example, and the first light-blocking structure included in the light-emitting diode display panel as the first frame color filter 220 as an example. For example, multiple first sub-color resist layers and the first light-blocking structure are disposed in the same layer and made of the same material, that is, the first sub-color resist layers and the first light-blocking structure can both be part of the first color filter layer 200. The term "same layer" used here and subsequently refers to the relationship between multiple film layers formed from the same material through the same step (e.g., a single patterning process). The term "same layer" here does not always mean that the multiple film layers have the same thickness or that the multiple film layers have the same height in the cross-sectional view.

[0055] For example, each sub-color filter layer is configured to filter the light emitted by each sub-pixel, thereby ensuring that light of a specific color can be emitted, thereby achieving color display. For a more detailed structural example of a sub-pixel, please refer to the following combined Figure 9 Description of the process.

[0056] like Figure 2A and Figure 2BAs shown, the shape of the first frame color film 220 is a non-closed ring, that is, the first frame color film 220 includes at least one first gap 201 connecting the display area 101 and the area outside the peripheral area 102, that is, the first gap 201 extending from the display area 101 to the peripheral area 102. Figure 1 The shape shown is a closed ring-shaped frame color film. At least one embodiment of the present disclosure designs the shape of the first frame color film to be a non-closed shape, so that in the process of subsequently forming other color film layers, the color film material dripped on the outside of the first frame color film can flow through the first gap of the first frame color film during the spin coating process and be better coated on the display area, thereby making the color film layer subsequently coated on the display area more uniform, thereby preventing the display device including the color film structure from having uneven display.

[0057] In some examples, such as Figure 2A and Figure 2B As shown, the first frame color film 220 includes a plurality of first spacers 201 connecting the display area 101 and the area outside the peripheral area 102 .

[0058] In actual processes, multiple LED display panels are manufactured simultaneously, that is, multiple color filter structures located on the multiple LED display panels are manufactured simultaneously. For example, each color filter structure is located in a color filter structure area. By providing multiple first intervals in the first frame color filter, the disclosed embodiment allows, during the subsequent formation of other color filter layers, color filter material that flows through a first interval and enters the display area of ​​a certain color filter structure area to flow out of the display area through another first interval and into the display area of ​​an adjacent color filter structure area, thereby ensuring a high degree of uniformity in the color filter layers within the display areas of the multiple color filter structure areas and preventing uneven display in multiple display devices including the aforementioned multiple color filter structures.

[0059] For example, Figure 2A As shown, the outer ring (i.e., outer contour) of the first frame color film 220 can be a right-angled rectangle, that is, the outer ring of the first frame color film 220 is a rectangle with four right angles. The outer ring of the first frame color film 220 is a rectangle, which means that the outer contour of the ring-shaped first frame color film is a rectangle.

[0060] For example, Figure 2A and Figure 2B As shown, the first pixel color filter 210 located in the display area 101 includes multiple first sub-pixel color filters (i.e., multiple first sub-color resist layers) arranged in an array, with a certain spacing between adjacent first sub-pixel color filters to form subsequent pixel color filters of different colors. In the disclosed embodiment, the first pixel color filter located in the display area is configured to directly oppose the sub-pixels in the display panel to achieve color filtering of the white light emitted by the light-emitting elements included in the sub-pixels.

[0061] For example, Figure 2C FIG. 1 is a schematic diagram of the planar structure of the first color filter layer according to an example of an embodiment of the present disclosure. Figure 2C As shown, the outer contour of the first light-blocking structure 220 includes two first sides S1 extending along a first direction (i.e., the X direction) and two second sides S2 extending along a second direction (i.e., the Y direction). The first direction intersects the second direction, and the first side and the second side are connected by an arcuate side S3, which bends in a direction away from the display area 101. For example, the first direction can be perpendicular to the second direction. When the first light-blocking structure 220 includes a plurality of first intervals 201, the first side S1 and the second side S2 can both be provided with the first interval 201, whereby the first side S1 and the second side S2 are divided into a plurality of line segments by the first interval 201.

[0062] For example, Figure 2C As shown, the outer contour of the first frame color film 220 can be a rounded rectangle, that is, the outer ring of the first frame color film 220 is a rectangle with rounded corners. The inner ring of the first frame color film 220 is determined according to the shape of the display area 101 required, for example, it can be a right-angled rectangle, that is, the inner ring of the first frame color film 220 is a rectangle with right corners. Compared to Figure 1 The outer frame shown includes a frame color film with sharp corners. The embodiment of the present disclosure designs the shape of the outer ring of the first frame color film to be a rounded rectangle, so as to reduce the probability of the color film material dripped on the outside of the first frame color film being affected by the sharp corners of the outer frame of the first frame color film during the spin coating process and becoming divergent in the process of subsequently forming other color film layers, thereby further improving the uniformity of the color film layer coated on the display area to prevent the display device including the color film structure from exhibiting uneven display.

[0063] The first interval and the size of the first pixel color filter in the above example are only for reference, and the first interval and the size of the first pixel color filter can be set according to actual needs. Figure 2D A schematic diagram of the planar structure of the first color filter layer is provided as another example of the embodiment of the present disclosure. Figure 2D As shown, the width of the first spacer 201 along the circumferential direction of the annular structure of the first frame color film 220 is no less than the width of the first pixel color film 210 along the circumferential direction of the annular structure of the first frame color film 220. This allows the color film material located outside the first frame color film to more easily flow through the first spacer and into the display area of ​​the color film structure during the subsequent formation of other color film layers. In other words, along the circumferential direction of the annular structure (including the first direction and the second direction), the width D1 of the first spacer 201 is no less than the width D2 of the first sub-color filter layer. For example, when the first spacer 201 is located on the second side S2, along the extension direction of the second side S2 (i.e., the Y direction), the width D1 of the first spacer 201 is no less than the width D2 of the first sub-color filter layer.

[0064] For example, the width of the first sub-color resist layer along the annular circumferential direction of the first frame color film 220 may be less than 10 microns, and the width of the first spacer 201 along the annular circumferential direction of the first frame color film 220 may be not less than 10 microns.

[0065] For example, Figures 2A-2D As shown, multiple first spacers 201 are evenly distributed along the circumferential direction of the ring, so that in the process of subsequently forming other color filter layers, the color filter material located outside the first frame color filter flows more evenly through the first spacers into the display area of ​​the color filter structure area, and flows out of the display area more evenly.

[0066] Figure 3A This is a schematic diagram of the planar structure of the second color filter layer in an example of an embodiment of the present disclosure. Figure 3B for Figure 3A The cross-sectional structure diagram of the second color filter layer taken along line AA is shown. Figure 3A The outer ring of the first color filter layer is schematically shown as a rounded rectangle, but is not limited thereto and may also be a right-angled rectangle.

[0067] like Figure 3A and Figure 3B As shown, the color film structure also includes a second color film layer 300. The second color film layer 300 includes a second pixel color film 310 located in the display area 101 and at least partially non-overlapping with the first pixel color film 210, and a second frame color film 320 located in the peripheral area 102. That is, the light-blocking structure also includes a second light-blocking structure, and the multiple sub-color resist layers also include multiple second sub-color resist layers. The following content of the embodiment of the present disclosure is described by taking the second pixel color film as the second sub-color resist layer and the second frame color film as the second light-blocking structure as an example. For example, the multiple second sub-color resist layers are arranged in the same layer as the second light-blocking structure and are made of the same material. That is, the second sub-color resist layer and the second light-blocking structure are two film layers formed by performing the same patterning process on the second color resist material.

[0068] In the embodiment of the present disclosure, by setting multiple first intervals in the first frame color film, during the subsequent formation of the second color film layer, the second color film material flowing through the first interval into the display area of ​​a certain color film structure area can flow out of the display area through another first interval and flow into the display area of ​​the adjacent color film structure area, thereby ensuring that the second color film layer in the display area of ​​the multiple color film structure areas has a high degree of uniformity.

[0069] Figure 3A and Figure 3BThe second pixel color filter 310 is schematically shown as being connected to the first pixel color filter 210, but the present invention is not limited thereto. For example, the second pixel color filter can partially overlap with the first pixel color filter, and the overlapping portion can provide light shielding and anti-reflection, thereby saving black matrix. For example, the second pixel color filter can also be separated from the first pixel color filter, with a black matrix provided in the gap between the two to prevent crosstalk.

[0070] For example, Figure 3A and Figure 3B As shown, the second pixel color filter 310 includes multiple second sub-pixel color filters (i.e., multiple second sub-color resist layers). The second sub-pixel color filters and the first sub-pixel color filters at least partially do not overlap, and one side of the second sub-pixel color filter can be connected to the first sub-pixel color filter, while the other side opposite to each other is spaced apart from the first sub-pixel color filter to form a subsequent pixel color filter with a different color from both the first and second pixel color filters. Of course, the embodiments of the present disclosure are not limited to this, and the first sub-pixel color filters and the second sub-pixel color filters can also be arranged alternately and connected.

[0071] like Figure 3A and Figure 3B As shown, the second frame color film 320 at least fills up a plurality of first spaces 201 to achieve light shielding and anti-reflection effects.

[0072] In some examples, such as Figure 3A and Figure 3B As shown, the second frame color film 320 includes a plurality of second spacers 301 connecting the display area 101 and the area outside the peripheral area 102, and at least part of the orthographic projections of the plurality of second spacers 301 on the transparent bottom layer 100 overlaps with the orthographic projections of the plurality of first spacers 201 on the transparent bottom layer 100.

[0073] For example, in Figure 3B In the example shown, the orthographic projection of the second frame color film 320 on the transparent base layer 100 includes multiple spaces 302, and the orthographic projection of the first spaces 201 on the transparent base layer 100 does not overlap with the spaces 302, ensuring that the second frame color film 320 fills at least multiple first spaces 201. In this example, the second spaces 301 are composed of the first spaces 201 and the spaces 302. During the process of forming the second frame color film 320 on the first frame color film 220, a portion of the second frame color film 320 fills the first spaces 201, while another portion is located on the first frame color film 220. The portion of the second frame color film 320 located on the first frame color film 220 includes multiple sub-portions, and the gaps between adjacent sub-portions are the second spaces 301. In addition, the second frame color film 320 located on the first frame color film 220 and the first frame color film 220 jointly perform light shielding and anti-reflection functions.

[0074] Figure 4A This is a schematic diagram of the planar structure of the second color filter layer in another example of the embodiment of the present disclosure. Figure 4B for Figure 4A The cross-sectional structure diagram of the second color filter layer taken along line AA is shown. Figure 4A The outer ring of the second color filter layer is schematically shown as a rounded rectangle, but is not limited thereto and can also be a right-angled rectangle. Figure 4A The second pixel color film shown is Figure 3A The features and effects of the second pixel color filter are the same as those shown, and will not be repeated here. Figure 4A and Figure 4B The second frame color film shown is Figure 3A The difference between the second frame color film in the example shown is that the second frame color film 320 (i.e., the second light-blocking structure) in this example has a closed ring shape. For example, the shape of the orthographic projection of the second frame color film 320 on the transparent bottom layer 100 is a closed ring, that is, there is no gap between the orthographic projections of the second frame color film 320 on the transparent bottom layer 100. For example, the orthographic projection of the first frame color film 220 on the transparent bottom layer 100 in this example is completely located within the orthographic projection of the second frame color film 320 on the transparent bottom layer 100. That is, the second light-blocking structure in this example completely covers the first light-blocking structure. The second frame color film 320 fills the first gap 201 and completely covers the first frame color film 220.

[0075] For example, Figure 4A and Figure 4B As shown, the second frame color film 320 includes a plurality of second spaces 301, and the orthographic projections of the second spaces 301 on the transparent base layer 100 completely overlap with the orthographic projections of the first spaces 201 on the transparent base layer 100. That is, during the process of forming the second frame color film 320 on the first frame color film 220, a portion of the second frame color film 320 fills the first spaces 201, while another portion is located on the first frame color film 220. The portion of the second frame color film 320 located on the first frame color film 220 includes a plurality of sub-portions, and the gaps between adjacent sub-portions constitute the second spaces 301. Furthermore, the second frame color film 320 located on the first frame color film 220 and the first frame color film 220 jointly provide light shielding and anti-reflection.

[0076] exist Figures 3A-4B In the example shown, since the second frame color film is designed to include a second spacer shape, in the process of subsequently forming other color film layers, the color film material flowing through the second spacer into the display area of ​​a certain color film structure area can flow out of the display area through another second spacer and flow into the display area of ​​the adjacent color film structure area, thereby ensuring that the color film layer in the display area of ​​multiple color film structure areas has a high degree of uniformity, so as to prevent the occurrence of uneven display in multiple display devices including the above-mentioned multiple color film structures.

[0077] Figure 5A This is a schematic diagram of the planar structure of the second color filter layer in another example of the embodiment of the present disclosure. Figure 5B for Figure 5A The cross-sectional structure diagram of the second color filter layer taken along line AA is shown. Figure 5A The outer ring of the first color filter layer is schematically shown as a rounded rectangle, but is not limited thereto and can also be a right-angled rectangle. Figure 5A The second pixel color film shown is Figure 3A The features and effects of the second pixel color filter are the same as those shown, and will not be repeated here. Figure 5A and Figure 5B The second frame color film shown is Figure 3A The difference between the second frame color film in the example shown is that the second frame color film 320 (i.e., the second light-blocking structure) in this example only fills the first intervals 201, that is, the pattern of the second frame color film 320 is complementary to the pattern of the first frame color film 220. In other words, the second frame color film 320 includes a plurality of second intervals 301, and the first frame color film 220 fills the second intervals 301 to form a frame color film in the shape of a closed ring for light blocking and anti-reflection.

[0078] For example, Figure 5A and Figure 5B As shown, the surface of the second frame color film 320 away from the transparent bottom layer 100 is flush with the surface of the first frame color film 220 away from the transparent bottom layer 100 to form a flat surface. That is, the second light-blocking structure 320 fills the first space 201, and the surface of the second light-blocking structure 320 away from the transparent bottom layer 100 is flush with the surface of the first light-blocking structure 220 away from the transparent bottom layer 100.

[0079] exist Figure 5A-5B In the example shown, since the first frame color film and the second frame color film only form one layer of frame color film, the thickness of the frame color film can be reduced, so that in the subsequent process of forming other color film layers, the color film material dripped on the outside of the first frame color film can be evenly coated on the display area during the spin coating process, thereby making the color film layer coated on the display area more uniform, so as to prevent the display device including the color film structure from having uneven display.

[0080] Figure 6A This is a schematic diagram of the planar structure of the third color filter layer in an example of an embodiment of the present disclosure. Figure 6B for Figure 6A The cross-sectional structure diagram of the third color filter layer taken along line AA is shown. Figure 6A The outer ring of the third color filter layer is schematically shown as a rounded rectangle, but is not limited thereto and may also be a right-angled rectangle.

[0081] like Figure 6A and Figure 6B As shown, the color filter structure also includes: a third color filter layer 400. The third color filter layer 400 includes a third pixel color filter 410 located in the display area 101 and at least partially non-overlapping with the first pixel color filter 210 and the second pixel color filter 310, and a third frame color filter 320 located in the peripheral area 102. That is, the light-blocking structure also includes a third light-blocking structure, and the multiple sub-color resist layers also include multiple third sub-color resist layers. The following content of the embodiment of the present disclosure is described by taking the third frame color filter 420 as the third light-blocking structure and the third pixel color filter 410 as the third sub-color resist layer as an example. For example, the multiple third sub-color resist layers are arranged in the same layer as the third light-blocking structure and are made of the same material. That is, the third sub-color resist layer and the third light-blocking structure are two film layers formed by performing the same patterning process on the third color resist material.

[0082] In the embodiment of the present disclosure, by setting multiple second intervals in the second frame color film, during the subsequent formation of the third color film layer, the third color film material flowing through the second interval into the display area of ​​a certain color film structure area can flow out of the display area through another second interval and flow into the display area of ​​the adjacent color film structure area, thereby ensuring that the third color film layer in the display area of ​​the multiple color film structure areas has a high degree of uniformity.

[0083] Figure 6A and Figure 6B The third pixel color filter 410 is schematically shown as being connected to the first pixel color filter 210 and the second pixel color filter 310, but the present invention is not limited thereto. For example, the third pixel color filter may partially overlap with both the second pixel color filter and the first pixel color filter. The overlapping portion may provide light shielding and anti-reflection, thereby saving black matrix. For example, the third pixel color filter may be separated from the second pixel color filter and the first pixel color filter, with a black matrix provided between adjacent pixel color filters to prevent crosstalk.

[0084] For example, Figure 6A and Figure 6B As shown, the third pixel color filter 410 includes multiple third sub-pixel color filters (ie, third sub-color resist layers), one side of the third sub-pixel color filter can be connected to the first sub-pixel color filter, and the other side can be connected to the second sub-pixel color filter.

[0085] For example, Figure 6A and Figure 6B For Figure 3A and Figure 3B The third frame color film is formed on the second frame color film in the example shown. Figure 6A and Figure 6BAs shown, the third frame color film 420 at least fills a plurality of the second spaces 301. Furthermore, the orthographic projection of the first frame color film 220 on the transparent base layer 100 is completely within the orthographic projections of the second frame color film 320 and the third frame color film 420 on the transparent base layer 100. In other words, the second frame color film 320 and the third frame color film 420 completely cover the first frame color film 220. In this disclosed embodiment, the first, second, and third frame color films collectively provide light shielding and anti-reflection properties.

[0086] For example, Figure 6B As shown, the third frame color film 420 only fills the second interval 301, and the third frame color film 420 includes a plurality of third intervals 401, and the third intervals 401 are completely filled by the second frame color film 320. In other words, the shape of the third frame color film 420 complements the shape of the second frame color film 320 located on the first frame color film 220.

[0087] For example, in Figure 6A and Figure 6B In the example shown, the third frame color film 420 only fills the second gap 301 so that the surface of the third frame color film 420 away from the transparent base layer 100 is flush with the surface of the second frame color film 320 located on the first frame color film 220 away from the transparent base layer 100. In other words, the second frame color film fills the first gap of the first frame color film, and the third frame color film fills the second gap of the second frame color film, thereby forming a frame color film with a thickness of only two layers, reducing the thickness of the frame color film.

[0088] Of course, the embodiment of the present disclosure is not limited to the third frame color film filling only the second interval. It can also be that the positive projection of the third frame color film on the transparent bottom layer is a closed ring, that is, the third frame color film is a continuous film layer and completely covers the first frame color film and the second frame color film, so as to increase the thickness of the frame color film in some areas and better achieve the shading effect.

[0089] For example, in Figure 4A-4B In the example shown, when a third frame color film is provided, the third frame color film may only fill the second interval as shown in 6B, or may be a continuous film layer that completely covers the first frame color film and the second frame color film. This embodiment of the present disclosure does not limit this.

[0090] Figure 7A This is a schematic diagram of the planar structure of the third color filter layer in another example of the embodiment of the present disclosure. Figure 7B for Figure 7A The cross-sectional structure diagram of the third color filter layer taken along line AA is shown. Figure 7A The outer ring of the third frame color film is schematically shown to be a rounded rectangle, but is not limited thereto and may also be a right-angled rectangle. Figure 7A The third pixel color film shown is Figure 6A The features and effects of the third pixel color filter shown are the same and will not be described again here.

[0091] Figure 7A and Figure 7B For Figure 5A and Figure 5B The third frame color film is formed on the second frame color film in the example shown. Figure 7A and Figure 7B As shown, the third frame color film 420 is located on the side of the second frame color film 320 and the first frame color film 220 away from the transparent bottom layer 100. The orthographic projection of the third frame color film 420 on the transparent bottom layer 100 is a closed ring shape (closed ring), that is, the third frame color film 420 is a continuous film layer and completely covers the first frame color film 220 and the second frame color film 320, so as to jointly play the role of light shielding and anti-reflection with the first frame color film and the second frame color film.

[0092] In this example, since the first frame color film and the second frame color film only form one layer of frame color film, the thickness of the frame color film can be reduced, so that in the subsequent process of forming the third color film layer, the color film material dripped on the outside of the first frame color film can be evenly coated on the display area during the spin coating process, thereby making the third color film layer coated on the display area more uniform, so as to prevent the display device including the color film structure from having uneven display.

[0093] In some examples, such as Figures 6A-7B As shown, the first color filter layer 200, the second color filter layer 300, and the third color filter layer 400 are color filter layers of different colors. That is, the first sub-color filter layer, the second sub-color filter layer, and the third sub-color filter layer are color filter layers of different colors. For example, the first sub-color filter layer, the second sub-color filter layer, and the third sub-color filter layer can be a red color filter layer, a green color filter layer, and a blue color filter layer, respectively.

[0094] Figure 8A and Figure 8B Schematic diagram of a color filter structure provided according to another embodiment of the present disclosure. Figure 8A Schematic diagram of the planar structure of the first color filter layer, the second color filter layer and the fourth color filter layer. Figure 8B for Figure 8A The diagram shows a cross-sectional structure diagram of the first frame color film and the second frame color film taken along line BB. Figure 3A The outer ring of the second color filter layer is schematically shown as a rounded rectangle, but is not limited thereto and can also be a right-angled rectangle. Figure 8A and Figure 8B As shown, the color filter structure includes: a transparent bottom layer 100 and a first color filter layer 200 located on the transparent bottom layer 100. The transparent bottom layer 100 includes a display area 101 and a peripheral area 102 surrounding the display area 101.

[0095] like Figure 8A and Figure 8B As shown, the first color filter layer 200 includes a first pixel color filter 210 (i.e., a first sub-color filter layer) located in the display area 101 and a first frame color filter 220 (i.e., a first light-blocking structure) located in the peripheral area 102. The shape and effect of the first frame color filter in the embodiment of the present disclosure are similar to those in the embodiment of the present disclosure. Figure 2A and Figure 2B The shape and effect of the first frame color film shown are the same and will not be described again here.

[0096] like Figure 8A and Figure 8B As shown, the color filter structure also includes a fourth color filter layer 500, which only includes the fourth pixel color filter 510 located in the display area 101 and at least partially non-overlapping with the first pixel color filter 210. That is, the fourth color filter layer 500 does not include the frame color filter located in the peripheral area 102. That is, when the display area 101 includes pixel color filters of two colors, the peripheral area 102 only includes one color filter layer, thereby reducing the thickness of the frame color filter in the peripheral area. That is, the light-blocking structure only includes the first light-blocking structure and the second light-blocking structure, and the multiple sub-color resist layers also include multiple fourth sub-color resist layers. The materials of the multiple fourth sub-color resist layers are different from the materials of the first light-blocking structure and the second light-blocking structure, and the first sub-color resist layer, the second sub-color resist layer, and the fourth sub-color resist layer are color filter layers of different colors. The above-mentioned first sub-color resist layer, the second sub-color resist layer, and the fourth sub-color resist layer can be a red color filter layer, a green color filter layer, and a blue color filter layer, respectively. The colors of the first and second sub-color resist layers in this embodiment are the same as those in the above-described embodiment. The color of the fourth sub-color resist layer in this embodiment may be the same as or different from the color of the third sub-color resist layer in the above-described embodiment. This embodiment is described using the example of the fourth sub-color resist layer having the same color as the third sub-color resist layer in the above-described embodiment.

[0097] In the embodiment of the present disclosure, the first color filter layer is formed after the fourth color filter layer is formed. Since the fourth color filter layer does not include a frame color filter (i.e., it does not include a light-blocking structure), it will not affect the uniformity of the subsequently formed first color filter layer. Therefore, the first pixel color filter located in the display area formed by the spin coating method is uniform.

[0098] Figure 8A and Figure 8B The fourth pixel color filter 510 is schematically shown to be connected to the first pixel color filter 210 , but the present invention is not limited thereto. Figure 8C Another example of the color film structure provided in the embodiment of the present disclosure is Figure 8ASchematic diagram of the cross-sectional structure taken along line DD in the example shown. For example, the fourth pixel color filter 510 may also partially overlap with the first pixel color filter 210, and the overlapping portion 215 of the two may play a role in light shielding and anti-reflection, thereby saving the black matrix. For example, in the portion 215 where the fourth pixel color filter 510 and the first pixel color filter 210 overlap with each other, the fourth pixel color filter 510 is located on the side of the first pixel color filter 210 close to the transparent bottom layer 100. That is, the fourth sub-color resist layer at least partially overlaps with the first sub-color resist layer, and in the portion where the fourth sub-color resist layer and the first sub-color resist layer overlap with each other, the fourth sub-color resist layer is located on the side of the first sub-color resist layer close to the transparent bottom layer. The embodiments of the present disclosure are not limited to this. For example, the fourth pixel color filter may also be separated from the first pixel color filter, and a black matrix is ​​provided between the two to prevent crosstalk.

[0099] For example, Figure 8A and Figure 8B As shown, the color filter structure further includes a second color filter layer 300 . The second color filter layer 300 includes a second pixel color filter 310 located in the display area 101 and at least partially non-overlapping with the first pixel color filter 210 and the fourth pixel color filter 510 , and a second frame color filter 320 located in the peripheral area 102 . Figure 8A and Figure 8B The second pixel color filter 310 is schematically shown to be connected to the first pixel color filter 210 and the fourth pixel color filter 510, but the present invention is not limited thereto. Figure 8C As shown, the second pixel color filter 310 can also overlap with at least one of the first pixel color filter 210 and the fourth pixel color filter 510. The overlapping portion can provide light shielding and anti-reflection, thereby saving black matrix. For example, the second pixel color filter can be separated from the first pixel color filter and the fourth pixel color filter, and the black matrix can be provided between adjacent pixel color filters to prevent crosstalk.

[0100] For example, Figure 8A and Figure 8B As shown, the characteristics, effects and positional relationship of the second frame color film 320 and the first frame color film 220 in the embodiment of the present disclosure are similar to those in FIG. Figure 4A and Figure 4B The features, effects and positional relationship of the second frame color film 320 are the same as those of the first frame color film 220 , and are not described in detail here.

[0101] Another embodiment of the present disclosure provides a light emitting diode display panel. Figure 9 FIG1 is a partial cross-sectional diagram of a light emitting diode display panel provided according to an embodiment of the present disclosure. Figure 9 To include Figure 6A Take the color film structure shown as an example, Figure 9 For the Figure 6AThe cross-sectional view of the LED display panel taken along line CC is shown. However, the present disclosure is not limited thereto. The LED display panel provided by the present disclosure may also have a color film structure as in the other examples above, as long as the shape of the first frame color film is a non-closed ring.

[0102] like Figure 9 As shown, the light emitting diode display panel includes a base substrate 600, a plurality of sub-pixels located on the base substrate 600, and a color filter structure (such as a color resist layer and a light blocking structure) located on the display side of the sub-pixels. Figure 6A The color filter structure shown is described as an example.

[0103] like Figure 9 As shown, multiple sub-pixels are located in the display area 101 and on one side of the substrate 600. At least one of the multiple sub-pixels includes: a light-emitting element 700 and a driving circuit 610 located between the light-emitting element 700 and the substrate 600. The light-emitting element 700 includes a first electrode 710, a light-emitting functional layer 720, and a second electrode 730 stacked in sequence. The first electrode 710 is closer to the substrate 600 than the second electrode 730. The driving circuit 610 includes a driving transistor and a storage capacitor. The driving transistor includes a source, a drain, and a gate. One of the source and the drain is coupled to the first electrode 710, and the gate is coupled to the storage capacitor. The storage capacitor is configured to store a data signal. A color resist layer is located on the side of the second electrode 730 away from the substrate 600. Light emitted by the light-emitting element 700 is emitted through the color resist layer.

[0104] Figure 9 The pixel circuit structure is only schematically shown in FIG. For a more detailed example of the pixel circuit structure, please refer to the following combined Figure 11 Description.

[0105] like Figure 9 As shown, the light-emitting diode display panel further includes a sensing area 103 located in the peripheral area 102. The sensing area 103 may include a sensing circuit structure for detecting pixel current. The sensing circuit structure may be connected to a temperature sensor, and the sensing circuit is located on the side of the color filter structure facing the base substrate 600. The orthographic projection of the sensing area 103 on the transparent bottom layer 100 is located within the orthographic projection of the first light-blocking structure on the base substrate 600.

[0106] like Figure 9 As shown, the second electrode 730 of the light-emitting element 700 in the display area can extend to the sensing area 103, and the first frame color film 220 (first light blocking structure), the second frame color film 320 (second light blocking structure) and the third frame color film 420 (third light blocking structure) cover the second electrode extending to the sensing area ( Figure 9The light-blocking structure of the cross section shown only includes the first light-blocking structure and the third light-blocking structure, but is not limited thereto. The wall structures at other locations may include the first light-blocking structure and the second light-blocking structure, the second light-blocking structure and the third light-blocking structure, or the first light-blocking structure, the second light-blocking structure and the third light-blocking structure). For example, the sensing area 103 includes a light-emitting element 700' and a sensing circuit structure 610' arranged on the same layer as the light-emitting element 700 in the display area. The first frame color film 220, the second frame color film 320 and the third frame color film 420 serve as light-blocking structures to block light emitted from the light-emitting element in the sensing area. In addition, it should be noted that Figure 9 FIG1 shows only an exemplary structure in which the first frame color film 220 and the third frame color film 420 are located in the peripheral area. However, the embodiments of the present disclosure are not limited thereto. For example, the various color film structures described in the above embodiments can be applied to Figure 9 In other words, you can Figure 9 The color filter structure in the embodiment is replaced with any color filter structure in the above embodiments.

[0107] For example, each sub-pixel SP includes a light emitting element 700, such as Figure 9 Each sub-pixel corresponds to a sub-color resist layer, for example, sub-color resist layers 210, 310, 410, etc., so that light emitted from each sub-pixel is filtered by the corresponding color resist layer and displays the corresponding color.

[0108] In some examples, such as Figure 9 As shown, the substrate 600 is a silicon substrate 600, and the side of the silicon substrate 600 facing the light emitting element 700 includes a driving circuit 610, which is connected to the light emitting element 700. For example, the source and drain of the driving transistor in the driving circuit 610 are integrated on the silicon substrate 600.

[0109] For example, a gate drive circuit and a data drive circuit (not shown) may be integrated on the silicon substrate, and a flexible circuit board may be provided in the peripheral area of ​​the silicon substrate, configured to transmit electrical signals to the gate drive circuit, the data drive circuit, and the light-emitting element. For example, the gate drive circuit (not shown) is used to generate a gate drive signal, and the data drive circuit (not shown) is used to generate a data signal. The gate drive circuit and the data drive circuit may adopt conventional circuit structures in the art, and the embodiments of the present disclosure are not limited thereto.

[0110] For example, the driver circuit 610 is configured to provide a driving current to the light-emitting element 700 under the control of a drive signal, such as a gate scan signal, a data signal, and a voltage signal, so as to cause the organic light-emitting layer included in the light-emitting element to emit light. For example, the driver circuit 610 may employ a pixel circuit having a circuit structure such as 4T1C, 4T2C, 7T1C, or 8T2C. The driving method may employ conventional methods in the art and will not be described in detail herein. For example, the pixel circuit structure may be fabricated on a silicon substrate using a CMOS process, which is not limited in the embodiments of the present disclosure.

[0111] For example, Figure 9 As shown, the silicon substrate 600 further includes a first insulating layer 620 and a second insulating layer 650 located between the driving circuit 610 and the light-emitting element 700. Both insulating layers are provided with vias 630. For example, the vias 630 may be tungsten holes filled with tungsten metal. When the first and second insulating layers 620 and 650 are relatively thick, forming tungsten vias in the first and second insulating layers 620 and 650 can ensure the stability of the conductive path. Furthermore, due to the mature process for making tungsten vias, the resulting first and second insulating layers 620 and 650 have good surface flatness, which helps reduce the contact resistance between the first and second insulating layers 620 and 650 and the electrodes included in the light-emitting element 700.

[0112] For example, Figure 9 As shown, a metal layer 640 is provided between the via holes 630 in the two insulating layers to electrically connect the light emitting element 700 with the driving circuit 610 .

[0113] For example, Figure 9 As shown, the first electrode 710 included in the light-emitting element 700 is electrically connected to the driving circuit 610 through a via 630 located in the insulating layer. The driving circuit 610 is used to drive the light-emitting element 700 to emit light. The light-emitting element 700 includes multiple light-emitting sub-elements, and the light-emitting functional layers 720 of adjacent light-emitting sub-elements are separated by a pixel defining layer 800.

[0114] For example, the driving circuit 610 includes at least a driving transistor and a switching transistor ( Figure 9 Not shown, please refer to Figure 11), the driving transistor and the first electrode 710 are electrically connected to each other. As a result, the electrical signal driving the light-emitting element 700 is transmitted to the first electrode 710, thereby controlling the light-emitting element 700 to emit light. For example, the driving transistor includes a gate electrode, a source electrode, and a drain electrode. The source electrode of the driving transistor is electrically connected to the first electrode 710. When the driving transistor is in the on state, the electrical signal provided by the power line can be transmitted to the first electrode 710 through the source electrode of the driving transistor. Due to the voltage difference between the first electrode 710 and the second electrode 730, an electric field is formed therebetween, and the light-emitting functional layer 720 emits light under the action of this electric field.

[0115] For example, Figure 9 As shown, each light-emitting sub-element included in the light-emitting element 700 corresponds to each sub-pixel color filter. For example, the light emitted by the light-emitting element 700 is white light, which can achieve color display after passing through the different color pixel color filters on the display side of the light-emitting element 700.

[0116] For example, Figure 9 As shown, the sensing area 103 located in the peripheral area 102 is also provided with a light-emitting element that is the same as the light-emitting element 700 in the display area 101. The light-emitting element located in the sensing area 103 is not used for display, but is used to detect the attenuation degree of pixel light emission, and therefore needs to be shielded by the frame color film located in the peripheral area 102.

[0117] In some examples, such as Figure 9 As shown, the transparent bottom layer 100 is a thin film encapsulation layer, and the thin film encapsulation layer is located on the side of the first color filter layer 200 facing the light emitting element 700 .

[0118] For example, the transparent bottom layer 100 is a first thin film encapsulation layer 100, and a second thin film encapsulation layer 100' is further provided on the side of the color film structure away from the light-emitting element 700. The first thin film encapsulation layer 100 and the second thin film encapsulation layer 100' can achieve effective encapsulation of the light-emitting element and effectively block water vapor, oxygen, etc., thereby protecting the light-emitting element and extending the service life of the light-emitting element.

[0119] For example, a cover plate (not shown) is further provided on the side of the second thin-film encapsulation layer away from the color filter structure. The second thin-film encapsulation layer and the cover plate are sequentially provided on top of the color filter structure to protect the color filter structure. For example, the second thin-film encapsulation layer is made of one or more organic or inorganic materials with good sealing properties to achieve a good sealing effect and protect the silicon-based OLED display device. For example, the cover plate can be made of a transparent material, such as an inorganic material such as glass or an organic material such as polyimide. For example, in the embodiments of the present disclosure, glass with high transmittance can be used, and the embodiments of the present disclosure are not limited to this.

[0120] Regarding the technical effects of the light-emitting diode display panel provided by the embodiment of the present disclosure, reference may be made to the technical effects of the color filter structure provided by the embodiment of the present disclosure, which will not be repeated here.

[0121] Figure 10 A schematic diagram of a circuit principle of a silicon-based organic light-emitting display panel provided in some embodiments of the present disclosure. The silicon-based organic light-emitting display panel includes a plurality of display devices L (i.e., light-emitting elements) located in a display area 101 (AA area) and a pixel circuit 110 coupled to each display device L in a one-to-one correspondence. The pixel circuit 110 (i.e., Figure 9 The driving circuit 610 in the silicon-based organic light-emitting display panel includes a driving transistor. Furthermore, the silicon-based organic light-emitting display panel may further include multiple voltage control circuits 120 located in the peripheral area 102 of the silicon-based organic light-emitting display panel (the area of ​​the silicon-based organic light-emitting display panel excluding the display area 101). For example, at least two pixel circuits 110 in a row share a voltage control circuit 120, and the first electrodes of the driving transistors in the pixel circuits 110 in the row are coupled to the shared voltage control circuit 120, while the second electrodes of the driving transistors are coupled to the corresponding display devices L. The voltage control circuit 120 is configured to output an initialization signal Vinit to the first electrodes of the driving transistors in response to a reset control signal RE to reset the corresponding display devices L; and to output a first power supply signal VDD to the first electrodes of the driving transistors in response to an emission control signal EM to drive the display devices L to emit light. By sharing the voltage control circuit 120, the structure of each pixel circuit in the display area 101 can be simplified, reducing the area occupied by the pixel circuits in the display area 101. This allows the display area 101 to be equipped with more pixel circuits and display devices, thereby realizing a high-PPI organic light-emitting display panel. In addition, under the control of the reset control signal RE, the voltage control circuit 120 outputs the initialization signal Vinit to the first electrode of the driving transistor to control the corresponding display device to reset, thereby avoiding the influence of the voltage loaded on the display device during the previous frame of light on the next frame of light, thereby improving the afterimage phenomenon.

[0122] For example, the silicon-based organic light-emitting display panel may further include a plurality of pixel units PX located in the display area 101, each pixel unit PX including a plurality of sub-pixels; each sub-pixel includes a display device L and a pixel circuit 110. Furthermore, the pixel unit PX may include three sub-pixels of different colors. These three sub-pixels may be a red sub-pixel, a green sub-pixel, and a blue sub-pixel. Of course, the pixel unit PX may also include four, five, or more sub-pixels. This needs to be designed and determined according to the actual application environment and is not limited here.

[0123] For example, the pixel circuits 110 in at least two adjacent sub-pixels in the same row may share a voltage control circuit 120. Figure 10 As shown, all pixel circuits 110 in the same row can share a voltage control circuit 120. Alternatively, in other examples, the pixel circuits 110 in two, three, or more adjacent sub-pixels in the same row can share a voltage control circuit 120, which is not limited here. In this way, by sharing the voltage control circuit 120, the area occupied by the pixel circuits in the display area 101 can be reduced.

[0124] Figure 11 This is a circuit diagram of a specific implementation example of a voltage control circuit and a pixel circuit in a display panel provided in some embodiments of the present disclosure. For example, the pixel circuit 110 (i.e. Figure 9 The driving transistor M0 in the driving circuit 610 shown in the figure can be an N-type transistor. In addition, the light-emitting element L can include an OLED. In this way, the positive electrode of the OLED is electrically connected to the second electrode D of the driving transistor M0, and the negative electrode of the OLED is electrically connected to the second power supply terminal VSS. The voltage of the second power supply terminal VSS is generally a negative voltage or a ground voltage VGND (generally 0V), and the voltage of the initialization signal Vinit can also be set to the ground voltage VGND, which is not limited here. For example, the OLED can be set to a Micro-OLED or Mini-OLED, which is further conducive to achieving a high PPI organic light-emitting display panel.

[0125] For example, Figure 11 As shown, the voltage control circuit 120 may include a first switching transistor M1 and a second switching transistor M2; the pixel circuit 110 may include a third switching transistor M3, a fourth switching transistor M4, and a fifth switching transistor M5 and a storage capacitor Cst in addition to the driving transistor M0.

[0126] For example, Figure 11 As shown, the gate of the first switch transistor M1 is used to receive the reset control signal RE, the first electrode of the first switch transistor M1 is used to receive the initialization signal Vinit, and the second electrode of the first switch transistor M1 is coupled to the first electrode of the third switch transistor M3. The gate of the second switch transistor M2 is used to receive the emission control signal EM, the first electrode of the second switch transistor M2 is used to receive the first power supply signal VDD, and the second electrode of the second switch transistor M2 is coupled to the first electrode of the third switch transistor M3.

[0127] For example, the first switch transistor M1 and the second switch transistor M2 can be of different types. For example, the first switch transistor M1 can be an N-type transistor, and the second switch transistor M2 can be a P-type transistor. Alternatively, the first switch transistor M1 can be a P-type transistor, and the second switch transistor M2 can be an N-type transistor. Of course, the first switch transistor M1 and the second switch transistor M2 can also be of the same type. In actual applications, the types of the first switch transistor M1 and the second switch transistor M2 need to be designed based on the actual application environment and are not limited here.

[0128] For example, Figure 11 As shown, the gate of the third switch transistor M3 is configured to receive a transmission control signal VT. The first electrode of the third switch transistor M3 is coupled to the second electrode of the first switch transistor M1 and the second electrode of the second switch transistor M2, and is configured to receive the initialization signal Vinit transmitted from the first switch transistor M1 or the first power supply signal VDD transmitted from the second switch transistor M2. The second electrode of the third switch transistor M3 is coupled to the first electrode S of the drive transistor M0. For example, the third switch transistor M3 can be controlled to be on or off by controlling whether the transmission control signal VT is input, thereby controlling the light-emitting duration of the light-emitting element L and implementing PWM (Pulse Width Modulation) dimming. This control method is beneficial for ensuring uniform PWM control of each sub-pixel.

[0129] For example, the pixel circuit 110 may further include a fourth switching transistor M4 and a storage capacitor Cst. For example, the gate of the fourth switching transistor M4 is used to receive a gate scan signal SN, the first electrode of the fourth switching transistor M4 is used to receive a data signal DATA, and the second electrode of the fourth switching transistor M4 is coupled to the gate G of the driving transistor M0. The first end of the storage capacitor Cst is coupled to the gate G of the driving transistor M0, and the second end of the storage capacitor Cst is coupled to the first voltage terminal V1. The voltage of the first voltage terminal V1 can be a ground voltage VGND, and the embodiments of the present disclosure include but are not limited to this. For example, the storage capacitor is used to store the written data signal DATA so that the driving transistor M0 drives the light-emitting element L to emit light according to the stored data signal DATA.

[0130] For example, the pixel circuit 110 may further include a fifth switch transistor M5. For example, the gate of the fifth switch transistor M5 is used to receive the inverted signal SN' of the gate scan signal SN, the first electrode of the fifth switch transistor M5 is used to receive the data signal DATA, and the second electrode of the fifth switch transistor M5 is coupled to the gate G of the driving transistor M0. In addition, the fifth switch transistor M5 is of a different type from the fourth switch transistor M4. For example, in some examples, such as Figure 11As shown, the fourth switch transistor M4 is an N-type transistor, and the fifth switch transistor M5 is a P-type transistor; or, in other examples, the fourth switch transistor M4 is a P-type transistor, and the fifth switch transistor M5 is an N-type transistor.

[0131] It should be noted that Figure 11 The pixel circuit structure shown is merely exemplary, and any other pixel circuit structure may be adopted according to the embodiments of the present disclosure.

[0132] The driving transistor M0, the first switching transistor M1, the second switching transistor M2, the third switching transistor M3, the fourth switching transistor M4, and the fifth switching transistor M5 are MOS transistors fabricated on a substrate 600 (e.g., a silicon-based substrate). For example, at least a portion of these transistors is located on the substrate. For example, the source and drain regions of these transistors are located on the substrate 600.

[0133] Another embodiment of the present disclosure provides an LED display device comprising the aforementioned LED display panel. The LED display device provided in this embodiment is a small-sized LED display device, namely a micro-LED display device. This LED display device can be used in any product or component with a display function, such as televisions, digital cameras, mobile phones, watches, tablet computers, laptop computers, and navigation systems. It is particularly suitable for use in helmet-mounted displays, stereoscopic displays, and eyewear displays. This micro-LED display device can be connected to mobile communication networks, satellite positioning systems, and other systems to provide accurate image information anywhere, at any time.

[0134] This embodiment is not limited thereto. The light-emitting diode display device provided by the embodiment of the present disclosure may also be applied to a virtual reality device or an augmented reality device.

[0135] Regarding the technical effects of the light-emitting diode display device provided by the embodiment of the present disclosure, reference may be made to the technical effects of the color filter structure provided by the embodiment of the present disclosure, which will not be repeated here.

[0136] Another embodiment of the present disclosure provides a method for manufacturing a light emitting diode display panel. Figure 12 This is a flow chart of a light emitting diode display panel provided according to an embodiment of the present disclosure. Figures 2A-7B as well as Figures 9-12 The preparation method includes the following steps.

[0137] S101: Provide a substrate.

[0138] For example, Figure 9 As shown, the base substrate 600 may be a silicon substrate.

[0139] For example, Figure 9 As shown, the base substrate 600 includes a display area 101 and a peripheral area 102 surrounding the display area 101. A driving circuit 610, a gate driving circuit, and a data driving circuit (not shown) are integrated on the silicon substrate 600. A flexible circuit board can be provided in the peripheral area 102 of the silicon substrate 600 to transmit electrical signals to the gate driving circuit and the data driving circuit.

[0140] For example, the driver circuit 610 may employ a pixel circuit having a 4T1C, 4T2C, 7T1C, or 8T2C circuit structure. The driving method may employ conventional methods in the art, which will not be described in detail herein. For example, the pixel circuit structure may be fabricated on a silicon substrate using a CMOS process, although this is not a limitation of the presently disclosed embodiments.

[0141] S102: forming a light-emitting element in the display area on the base substrate.

[0142] For example, Figure 9 As shown, forming the light emitting element 700 includes forming a first electrode 710, a light emitting functional layer 720 and a second electrode 730 stacked in sequence. The first electrode 710 is electrically connected to the driving circuit 610, and the driving circuit 610 is used to drive the light emitting element 700 to emit light.

[0143] S103: Spin coating a first color resist material on the light emitting element.

[0144] For example, in an actual process, a silicon substrate includes multiple LED display panel areas for forming multiple LED display panels. After light-emitting elements are formed in each LED display panel area, a first color filter material layer (i.e., a first color resist material) is applied by spin coating to cover each LED display panel area. Of course, the embodiments of the present disclosure are not limited to spin coating, and other methods can also be used to apply the first color resist material.

[0145] For example, spin coating refers to a coating process that utilizes the centrifugal force and gravity generated by the workpiece's rotation to distribute coating droplets across the workpiece's surface. Spin coating the first color filter material layer involves depositing the first color filter material onto a silicon substrate outside the LED display panel area, and then rotating the silicon substrate to evenly distribute the first color filter material across the multiple light-emitting elements within the LED display panel area, thereby forming a uniformly thick first color filter material layer.

[0146] For example, the color of the first color filter material is different, and the glue coating speed used may be different.

[0147] For example, before forming the first color filter material layer, a transparent bottom layer is formed on the light emitting element, that is, a thin film encapsulation layer covering the light emitting element.

[0148] S104: patterning the first color resist material to form a first color resist layer in the display area, and forming a first light blocking structure surrounding the display area in the peripheral area.

[0149] For example, Figure 2A As shown, after pre-baking, exposure, development, and post-baking the first color filter material layer, a first pixel color filter 210 (i.e., a first color resist layer) can be formed in the display area 101, and a first frame color filter 220 (i.e., a first light-blocking structure) can be formed in the peripheral area 102. The first frame color filter 220 is formed in a non-closed ring shape, i.e., includes at least one first gap.

[0150] The embodiment of the present disclosure designs the shape of the first frame color film to be a non-closed shape, so that in the process of subsequently forming other color film layers, the color film material dripped on the outside of the first frame color film can flow through the first gap of the first frame color film during the spin coating process and be coated on the display area, thereby making the color film layer coated on the display area more uniform, thereby preventing the display device including the color film structure from having uneven display.

[0151] In some examples, such as Figure 2A and Figure 2B As shown, forming the first frame color film 220 includes patterning the first color film material layer to form a plurality of first spacers 201 connecting the display area 101 and the area outside the peripheral area 102 .

[0152] For example, the first pixel color film and the first frame color film formed in the embodiment of the present disclosure have Figure 2A and Figure 2B The first pixel color film and the first frame color film have the same features and effects, which will not be described in detail here.

[0153] S105: coating a second color resist material on the first color resist layer and the first light blocking structure by spin coating.

[0154] For example, Figure 3A and Figure 3B As shown, after forming the first pixel color filter and the first frame color filter, the manufacturing method further includes: applying a second color filter material layer (i.e., a second color resist material) on the first pixel color filter 210 and the first frame color filter 220 using a spin coating method. Of course, the embodiments of the present disclosure are not limited to the spin coating method, and other methods can also be used to apply the second color resist material.

[0155] For example, the second color filter material is dripped into the area outside the first frame color filter 220, and then the silicon substrate 600 is rotated so that the second color filter material is evenly coated on the display area 101 and the peripheral area 102 of each LED display panel area to form a second color filter material layer. Because the first frame color filter is formed with multiple first gaps, during the subsequent formation of the second color filter layer, the second color filter material that flows through the first gaps and enters the display area of ​​a certain color filter structure area can flow out of the display area through another first gap and flow into the display area of ​​an adjacent color filter structure area, thereby ensuring a high degree of uniformity of the second color filter layer within the display areas of the multiple color filter structure areas.

[0156] S106: patterning the second color resist material to form a second color resist layer in the display area that at least partially does not overlap with the first color resist layer, and forming a second light blocking structure surrounding the display area in the peripheral area.

[0157] For example, Figure 3A and Figure 3B As shown, after coating the second color film material layer, the second color film material layer is patterned, such as by exposure and development, to form a second pixel color film 310 (i.e., a second color resist layer) in the display area 101 that at least partially does not overlap with the first pixel color film 210, and a second frame color film 320 (i.e., a second light-blocking structure) in an annular shape surrounding the display area 101 is formed on the first frame color film 220, and the second frame color film 320 at least fills a plurality of first intervals 201.

[0158] For example, coating the second color resist material on the first color resist layer and the first light blocking structure by spin coating includes: providing the second color resist material in an area outside the first light blocking structure; and rotating the base substrate so that the second color resist material is evenly coated on the display area and the peripheral area, wherein at least part of the second color resist material flows through the first gap to the inner side of the first light blocking structure.

[0159] For example, the second frame color film formed by the above method can be Figures 3A-4B For the structure in any of the examples, the manufacturing method provided by the embodiment of the present disclosure forms a second gap in the second frame color film, so that in the process of subsequently forming other color film layers, the color film material flowing through the second gap into the display area of ​​a certain light-emitting diode display panel area can flow out of the display area through another second gap and flow into the display area of ​​the adjacent light-emitting diode display panel area, thereby ensuring that the color film layers in the display areas of multiple light-emitting diode display panel areas have a high degree of uniformity, so as to prevent multiple display devices including the above-mentioned multiple color film structures from having uneven display.

[0160] For example, Figure 5A and Figure 5BAs shown, the formed second frame color film 320 may also only fill the first gap 201 of the first frame color film 220, that is, the pattern of the second frame color film 320 is complementary to the pattern of the first frame color film 220. Because the first frame color film and the second frame color film only form one layer of frame color film, the thickness of the frame color film can be reduced. Therefore, in the process of subsequently forming other color film layers, the color film material dripped on the outside of the first frame color film can be evenly coated on the display area during the spin coating process, thereby improving the uniformity of the color film layer coated on the display area.

[0161] In some examples, such as Figure 6A and Figure 6B As shown, after the second pixel color film and the second frame color film are formed, the manufacturing method further includes: coating a third color film material layer on the second pixel color film 310 and the second frame color film 320 by spin coating.

[0162] For example, a third color filter material is dripped onto the area outside the second frame color filter 320, and then the silicon substrate 600 is rotated so that the third color filter material is evenly coated on the display area 101 and the peripheral area 102 of each LED display panel area to form a third color filter material layer. Because the formed second frame color filter includes multiple second gaps, during the subsequent formation of the third color filter layer, the third color filter material that flows through the second gaps and enters the display area of ​​a certain color filter structure area can flow out of the display area through another second gap and into the display area of ​​an adjacent color filter structure area, thereby ensuring a high degree of uniformity of the third color filter layer within the display areas of the multiple color filter structure areas.

[0163] For example, Figure 6A and Figure 6B As shown, after coating the third color filter material layer, the third color filter material layer is patterned, such as by exposure and development, to form a third pixel color filter 410 that at least partially does not overlap with the first pixel color filter 210 and the second pixel color filter 310 in the display area 101, and a third frame color filter 420 is formed on the second frame color filter 320 surrounding the display area 101, and the third frame color filter 420 at least fills the plurality of second gaps 301. The third pixel color filter and the third frame color filter formed in the embodiment of the present disclosure have Figure 6A and Figure 6B The third pixel color film and the third frame color film have the same features and effects, which will not be described in detail here.

[0164] For example, Figure 7A and Figure 7B As shown, after the second pixel color film and the second frame color film are formed, the manufacturing method further includes: coating a third color film material layer on the second pixel color film 310 and the second frame color film 320 by spin coating.

[0165] For example, a third color filter material is dripped onto the area outside the second frame color filter 320, and then the silicon substrate 600 is rotated so that the third color filter material is evenly coated on the display area 101 and the peripheral area 102 of each LED display panel area to form a third color filter material layer. Because the first and second frame color filters form only one frame color filter layer, the thickness of the frame color filter can be reduced. Therefore, in the subsequent process of forming the third color filter layer, the third color filter material dripped onto the outside of the first frame color filter can be evenly coated on the display area during the spin coating process, thereby achieving a more uniform coating of the third color filter layer on the display area.

[0166] For example, Figure 7A and Figure 7B As shown, after coating the third color film material layer, the third color film material layer is patterned, such as by exposure and development, to form a third pixel color film 410 that at least partially does not overlap with the first pixel color film 210 and the second pixel color film 310 in the display area 101, and a third frame color film 420 surrounding the display area 101 is formed on the second frame color film 320. The orthographic projection of the third frame color film 420 on the transparent bottom layer 100 is a closed ring, that is, the third frame color film 420 is a continuous film layer and completely covers the first frame color film 220 and the second frame color film 320, so as to play a role of light shielding and anti-reflection together with the first frame color film and the second frame color film.

[0167] Another example of the embodiment of the present disclosure provides a method for manufacturing a light emitting diode display panel, referring to Figure 8A-8B , which differs from the manufacturing method provided in the previous example in that, before forming the first color filter material layer, the method includes: applying a fourth color filter material layer on the light-emitting element by spin coating, and patterning the fourth color filter material layer to form a fourth pixel color filter 510 only in the display area 101. The fourth color filter material layer in this example can be a color filter material layer of the same color as the third color filter material layer in the previous example, but the fourth color filter material layer in this example is formed before the first color filter layer, and the peripheral area only includes two color filter layers: the first frame color filter and the second frame color filter. Of course, the embodiments of the present disclosure are not limited to this, and the fourth color filter material layer can also be a color filter material layer of a different color from the third color filter material layer in the previous example.

[0168] For example, before forming the first color filter material layer, a fourth color filter material is dripped onto a portion of the silicon substrate outside the LED display panel area. The silicon substrate is rotated to evenly distribute the fourth color filter material over the light-emitting elements in the multiple LED display panel areas, thereby forming a fourth color filter material layer of uniform thickness. The fourth color filter material layer is then pre-baked, exposed, developed, and post-baked to form a fourth pixel color filter only in the display area.

[0169] For example, after forming the fourth pixel color film, a first color film material layer is applied on the fourth pixel color film by spin coating, that is, the first color film material is dripped at a position outside the light-emitting diode display panel area of ​​the silicon substrate, and the first color film material is evenly distributed in the peripheral area and the display area (including the fourth pixel color film) in the plurality of light-emitting diode display panel areas by rotating the silicon substrate to form a first color film material layer with uniform thickness. Then, the first color film material layer is patterned to form a first pixel color film in the display area that does not at least partially overlap with the fourth pixel color film, and a first border color film surrounding the display area is formed in the peripheral area. The first pixel color film and the first border color film formed in this example have the same characteristics and effects as the first pixel color film and the first border color film formed by the manufacturing method provided in the previous example, and will not be repeated here.

[0170] For example, after forming the first pixel color film and the first frame color film, the manufacturing method provided in this example has the following characteristics, effects and positional relationship with the first frame color film: Figure 4A and Figure 4B The features, effects and positional relationship of the second frame color film shown are the same as those of the first frame color film, and are not described in detail here.

[0171] For example, after forming the color filter structure, the manufacturing method provided in the embodiments of the present disclosure further includes forming a thin-film encapsulation layer on the side of the color filter structure away from the light-emitting element. These two thin-film encapsulation layers, located on either side of the color filter structure, effectively encapsulate the light-emitting element and effectively block moisture, oxygen, and other gases, thereby protecting the light-emitting element and extending its service life.

[0172] For example, both thin film encapsulation layers can be made of one or more organic or inorganic materials with good sealing properties, so as to achieve a good sealing effect and protect the light-emitting elements of the silicon-based organic light-emitting diode.

[0173] For example, after forming a thin film encapsulation layer on the side of the color filter structure away from the light-emitting element, the manufacturing method further includes forming a cover plate on the side of the thin film encapsulation layer away from the color filter structure to protect the color filter structure.

[0174] For example, the cover plate can be made of a transparent material, such as an inorganic material such as glass or an organic material such as polyimide. For example, in the embodiment of the present disclosure, plain glass with high transmittance can be used, and the embodiment of the present disclosure does not limit this.

[0175] The technical effects of the light-emitting diode display panel manufactured by the manufacturing method provided by the embodiment of the present disclosure can refer to the technical effects of the color filter structure provided in the embodiment of the present disclosure, and will not be repeated here.

[0176] There are a few points to note:

[0177] (1) The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures can refer to general designs.

[0178] (2) In the absence of conflict, features in the same embodiment and different embodiments of the present disclosure may be combined with each other.

[0179] The foregoing description is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure. The scope of protection of the present disclosure is determined by the appended claims.

Claims

1. A display panel, comprising: substrate; A first color filter layer is located on the base substrate; as well as The second color filter layer is located on the base substrate. Among them, the second color filter layer includes a first sub-color filter portion and a second sub-color filter portion, the first color filter layer includes a third sub-color filter portion extending along a direction, and the third sub-color filter portion includes a plurality of spacer areas; the first sub-color filter portion covers the portion of the third sub-color filter portion except the spacer areas, and the second sub-color filter portion fills the plurality of spacer areas.

2. The display panel according to claim 1, wherein: The first color filter layer includes a green color filter layer, and the second color filter layer includes a red color filter layer.

3. The display panel according to claim 1, wherein: The first sub-color filter portion located between two adjacent second sub-color filter portions arranged along the extending direction of the third sub-color filter portion is a continuous structure.

4. The display panel according to any one of claims 1 to 3, wherein: The display panel includes a display area and a peripheral area surrounding the display area. The first color filter layer includes a first frame color filter located in the peripheral area. The second color filter layer includes a second frame color filter located in the peripheral area.

5. The display panel according to claim 4, further comprising: A plurality of sub-pixels are located in the display area, The display panel includes a plurality of sub-color resist layers arranged in a one-to-one correspondence with the plurality of sub-pixels, the plurality of sub-color resist layers include a plurality of first sub-color resist layers, and the plurality of first sub-color resist layers are part of the first color filter layer; Along the extension direction of the third sub-color filter portion, the size of a portion of at least one spacing area filled by the second sub-color filter portion is not smaller than the size of at least one first sub-color resist layer. The display panel according to claim 5 , wherein: A dimension of the at least one first sub-color resist layer along an extension direction of the third sub-color filter portion is less than 10 micrometers.

7. The display panel according to any one of claims 1 to 3, wherein: Along a direction perpendicular to the base substrate, the thickness of the first sub-color filter portion is equal to the thickness of the second sub-color filter portion.

8. The display panel according to any one of claims 1 to 3, further comprising: The third color filter layer is located on a side of the first color filter layer away from the base substrate. The third color filter layer includes a portion covering at least one of the first color filter layer, the second color filter layer and the spacer area.

9. The display panel according to claim 8, wherein: The third color filter layer covers the first color filter layer, the second color filter layer and the spacing area.

10. The display panel according to claim 5, wherein: The plurality of sub-color resist layers include a plurality of second sub-color resist layers, which are part of the second color filter layer. At least a portion of the second sub-color resist layers does not overlap with the first sub-color resist layer.

11. The display panel according to any one of claims 1 to 3, wherein: A surface of the second sub-color filter portion away from the base substrate is flush with a surface of the third sub-color filter portion away from the base substrate.

12. The display panel according to claim 8, wherein: The third color filter layer includes a blue color filter layer.

13. A display panel comprising: A base substrate, comprising a display area and a peripheral area surrounding the display area; A plurality of sub-pixels are located in the display area; A first color filter layer is located on the base substrate; as well as The second color filter layer is located on the base substrate. The display panel includes a plurality of sub-color resist layers arranged in a one-to-one correspondence with the plurality of sub-pixels, the plurality of sub-color resist layers include a plurality of first sub-color resist layers, and the plurality of first sub-color resist layers are part of the first color filter layer; The first color filter layer includes at least a first strip portion extending continuously along a first direction, and the second color filter layer includes at least a second strip portion extending continuously along a second direction, wherein the first direction and the second direction intersect; Along the first direction, the length of the first strip portion is greater than the size of at least one first sub-color resist layer; along the second direction, the length of the second strip portion is greater than the size of at least one first sub-color resist layer.

14. The display panel according to claim 13, wherein: The first color filter layer includes at least one strip-shaped gap extending along the second direction, and the second color filter layer includes a first sub-color filter portion and a second sub-color filter portion. The first sub-color filter portion covers part of the first color filter layer, and the second sub-color filter portion fills the strip-shaped gap.

15. The display panel according to claim 13, wherein: The first color filter layer includes a green color filter layer, and the second color filter layer includes a red color filter layer.

16. The display panel according to claim 14, wherein: Along the first direction, a size of a portion of at least one strip-shaped interval filled by the second sub-color filter portion is not smaller than a size of the at least one first sub-color filter layer.

17. The display panel according to claim 13, wherein: A dimension of the at least one first sub-color resist layer along at least one of the first direction and the second direction is less than 10 micrometers.

18. The display panel according to claim 14, wherein: Along a direction perpendicular to the base substrate, the thickness of the first sub-color filter portion is equal to the thickness of the second sub-color filter portion.

19. The display panel according to any one of claims 13 to 18, further comprising: The third color filter layer is located on a side of the first color filter layer away from the base substrate. Wherein, the third color filter layer covers the first color filter layer, the second color filter layer and the strip-shaped spacers.

20. A display device comprising the display panel according to any one of claims 1 to 19.

Images