Display panel and display device

Abstract

A display panel and a display device are provided. The display panel comprises: an array substrate comprising a first substrate and a plurality of spacers on the first substrate; a color film substrate opposite to the array substrate, the color film substrate comprising a second substrate, a color film layer on the second substrate close to the array substrate, and an organic cover layer on the color film layer close to the array substrate; and a liquid crystal layer between the array substrate and the color film substrate. The color film layer comprises a plurality of color film portions arranged along a first direction and a second direction, the first direction and the second direction intersecting each other, and at least two color film portions adjacent along the second direction having at least one interval portion therebetween. The organic cover layer comprises at least one recessed portion in a region where the at least one interval portion is located, the recessed portion recessing away from the array substrate, and a part of the at least one spacer close to the color film substrate being located in the at least one recessed portion.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display panel and a display device. Background Technology

[0002] Liquid crystal displays (LCDs) are widely used in portable electronic devices such as mobile phones, tablets, and laptops, and are one of the core display components of various consumer electronics products. During daily use, storage, and transportation, portable electronic devices often encounter various external forces: when placed still, they are easily piled on top of heavy objects or compressed; when stored in backpacks or bags, they are easily bumped and squeezed by surrounding items; tablets and laptops may also experience screen-keyboard and touchscreen components pressing against each other. These external forces directly impact the LCD screen, easily causing structural damage and leading to display defects, severely affecting the user experience and lifespan of the product.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] In one aspect, a display panel is provided, the display panel comprising: an array substrate including a first substrate and a plurality of spacers located on the first substrate; a color filter substrate disposed opposite to the array substrate, the color filter substrate including a second substrate, a color filter layer located on the side of the second substrate near the array substrate, and an organic cover layer located on the side of the color filter layer near its respective array substrate; and a liquid crystal layer located between the array substrate and the color filter substrate, wherein the color filter layer includes a plurality of color filter portions arranged in an array along a first direction and a second direction, the first direction and the second direction intersecting, at least two adjacent color filter portions along the second direction having at least one spacer portion, the organic cover layer including at least one recessed portion located in the region of at least one spacer portion, the recessed portion being recessed in a direction away from the array substrate, and a portion of at least one spacer located on the side near the color filter substrate being located within at least one recessed portion.

[0005] According to some exemplary embodiments, at least one of the spacers extends along the first direction, a plurality of color filter portions arranged adjacent to each other along the first direction are located on one side of at least one of the spacers along the second direction, and another plurality of color filter portions arranged adjacent to each other along the first direction are located on the other side of at least the same spacer along the second direction; and the orthographic projections of the plurality of spacers arranged adjacent to each other along the first direction on the first substrate respectively and the orthographic projections of at least the same spacer on the first substrate at least partially overlap.

[0006] According to some exemplary embodiments, the display panel further includes a black matrix layer, the black matrix layer including a plurality of first black matrix portions and a plurality of second black matrix portions, the plurality of first black matrix portions extending along a first direction and arranged along a second direction, the plurality of second black matrix portions extending along the second direction and arranged along the first direction; the orthographic projection of at least one of the spacers on the first substrate and the orthographic projection of at least one of the first black matrix portions on the first substrate at least partially overlap, and / or, the orthographic projections of the plurality of spacers on the first substrate and the orthographic projection of the same first black matrix portion on the first substrate at least partially overlap.

[0007] According to some exemplary embodiments, the first black matrix portion includes a plurality of first sub-parts and a plurality of second sub-parts, the plurality of first sub-parts and the plurality of second sub-parts being alternately connected along the first direction, the dimension of the first sub-parts along the second direction being greater than the dimension of the second sub-parts along the second direction; the dimension of the spacing portion along the second direction being smaller than the dimension of the second sub-parts along the second direction, and / or, the orthographic projection of at least one color filter portion on the first substrate and the orthographic projection of at least one second sub-part on the first substrate overlap to form a first overlapping portion, the dimension of the first overlapping portion along the second direction being greater than or equal to 0.46 micrometers, and / or, the dimension of the spacer along the second direction being smaller than the dimension of the spacing portion along the second direction, and / or, the orthographic projection of at least one spacer on the first substrate and the orthographic projection of at least one adjacent color filter portion on the first substrate are spaced apart in the second direction, and the spacing distance along the second direction is greater than or equal to 0.86 micrometers.

[0008] According to some exemplary embodiments, the black matrix layer is located on the side of the organic cover layer close to the second substrate, the first black matrix portion includes at least one cutout portion, the orthographic projection of at least one cutout portion on the first substrate falls within the orthographic projection of at least one spacer portion on the first substrate, and the orthographic projection of at least one cutout portion on the first substrate and the orthographic projection of at least one spacer on the first substrate at least partially overlap.

[0009] According to some exemplary embodiments, the orthographic projections of the plurality of cutout portions on the first substrate fall within the orthographic projection of the same spacer portion on the first substrate, and / or, the orthographic projections of the plurality of cutout portions on the first substrate fall within the orthographic projections of the plurality of spacers on the first substrate.

[0010] According to some exemplary embodiments, the array substrate further includes at least one shielding structure, wherein the orthographic projection of at least one shielding structure on the first substrate and the orthographic projection of at least one cutout on the first substrate at least partially overlap, and the edge of the orthographic projection of at least one shielding structure on the first substrate has an outward extension distance of greater than or equal to 0.68 micrometers relative to the orthographic projection of at least one cutout on the first substrate.

[0011] According to some exemplary embodiments, the array substrate includes an active layer, a gate metal layer, and a light-shielding layer. The gate metal layer is located on the side of the active layer away from the first substrate, and the light-shielding layer is located on the side of the active layer close to the first substrate. The active layer includes a plurality of active portions, the gate metal layer includes a plurality of gate lines, and the light-shielding layer includes a plurality of light-shielding portions. The orthographic projection of at least one of the gate lines on the first substrate and the orthographic projections of the plurality of active portions on the first substrate at least partially overlap. The orthographic projection of at least one light-shielding portion on the first substrate and the orthographic projection of at least one active portion on the substrate at least partially overlap. The orthographic projection of at least one gate line on the first substrate and the orthographic projection of at least one cutout portion on the first substrate at least partially overlap. And / or, the orthographic projection of at least one light-shielding portion on the first substrate and the orthographic projection of at least one cutout portion on the first substrate at least partially overlap.

[0012] According to some exemplary embodiments, the first black matrix portion is located on the side of the spacer near the first substrate, and the orthographic projection of at least one of the spacers on the first substrate falls within the orthographic projection of at least one of the first black matrix portions on the first substrate, and / or, the orthographic projections of multiple spacers on the first substrate fall within the same orthographic projection of the first black matrix portion on the first substrate.

[0013] According to some exemplary embodiments, the second black matrix portion is located on the side of the color filter layer close to the second substrate, and the orthographic projection of at least one of the second black matrix portions on the first substrate overlaps with the orthographic projections of at least two adjacent color filter portions on the first substrate along the first direction; and at least one of the second black matrix portions includes a plurality of third sub-portions spaced apart along the second direction, and the orthographic projection of at least one of the third sub-portions on the first substrate is located between the orthographic projections of at least two adjacent spacers on the first substrate along the second direction.

[0014] In another aspect, a display device is provided, the display device comprising a display panel as described in any of the preceding claims. Attached Figure Description

[0015] Other objects and advantages of this disclosure will become apparent from the following description of the disclosure with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the disclosure.

[0016] Figure 1 This diagram schematically illustrates a principle of scratching a display panel in the related art.

[0017] Figure 2 This diagram schematically illustrates a principle of scratching a display panel in the related art.

[0018] Figure 3 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically.

[0019] Figure 4 schematically shown Figure 3 A magnified view of a portion of region A1 in the middle.

[0020] Figure 5 Schematic illustration along Figure 4 A cross-sectional view taken along the centerline B1-B1'.

[0021] Figure 6 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically.

[0022] Figure 7 schematically shown Figure 6 A magnified view of a portion of region A2 in the middle.

[0023] Figure 8 Schematic illustration along Figure 7 A cross-sectional view taken along the centerline B2-B2'.

[0024] Figure 9 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically.

[0025] Figure 10 schematically shown Figure 9 A magnified view of a portion of the central area A3.

[0026] Figure 11 Schematic illustration along Figure 10 A cross-sectional view taken along the centerline B3-B3'.

[0027] Figure 12 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically.

[0028] It should be noted that, for clarity, the dimensions of layers, structures, or regions in the accompanying drawings used to describe embodiments of this disclosure may be enlarged or reduced; that is, these drawings are not drawn to actual scale. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0030] It should be noted that, for clarity and / or descriptive purposes, the dimensions and relative dimensions of components may be enlarged in the accompanying drawings. Therefore, the dimensions and relative dimensions of the individual components are not necessarily limited to those shown in the drawings. In the specification and accompanying drawings, the same or similar reference numerals indicate the same or similar parts.

[0031] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0032] In this document, unless otherwise specified, directional terms such as "up," "down," "left," "right," "inner," and "outer" are used to indicate orientation or positional relationships based on the accompanying drawings, and are used only for the convenience of describing this disclosure, and are not intended to indicate or imply that the device, element, or component referred to must have a specific orientation, or be constructed or operated in a specific orientation. It should be understood that when the absolute position of the described object changes, the relative positional relationships they represent may also change accordingly. Therefore, these directional terms should not be construed as limitations on this disclosure.

[0033] In this document, the terms “approximately,” “about,” “approximately,” and other similar terms are used as terms of approximation rather than as terms of degree, and they are intended to account for inherent deviations in measured or calculated values ​​that would be recognized by one of ordinary skill in the art. Taking into account factors such as process variations, measurement problems, and errors associated with the measurement of a particular quantity (i.e., limitations of the measurement system), “about” or “approximately” as used herein includes stated values ​​and indicates that a particular value is within an acceptable range of deviation for one of ordinary skill in the art. For example, “about” may mean within one or more standard deviations, or within ±10% or ±5% of the stated value.

[0034] In this document, the directional terms "first direction" and / or "second direction" are used to describe different orientations of a display module or display device, such as the light emission direction and horizontal direction of the display module. It should be understood that such representations are merely exemplary descriptions and not limitations of this disclosure.

[0035] In this article, "parallel" or "nearly parallel" refers to the state where the angle formed by two straight lines is greater than -10° and less than 10°, and therefore also includes the state where the angle is greater than -5° and less than 5°. In addition, "perpendicular" refers to the state where the angle formed by two straight lines is greater than 80° and less than 100°, and therefore also includes the state where the angle is greater than 85° and less than 95°.

[0036] Currently, in order to ensure the compression resistance of LCD panels, some mechanical tests are conducted during the sample evaluation stage. Depending on the requirements, compression tests can be performed on different compression surfaces (screen surface and outer casing surface) or different compression locations (center, periphery, weak points of casing, etc.). Alternatively, different pressure heads or different applied forces and durations can be used to perform compression tests.

[0037] Figure 1 This diagram schematically illustrates a principle of scratching a display panel in the related art. Figure 2 This diagram schematically illustrates a principle of scratching a display panel in the related art.

[0038] One of the more frequent defects in these tests was the appearance of red, green, blue, and white spots (PSmura) on a black screen. The inventors' research revealed a strong correlation between the occurrence of PSmura and the design of the spacers. (See reference...) Figure 1 or Figure 2 In mechanical testing, most LCD panels warp to some extent when subjected to external pressure, causing the spacers to slide relative to each other. During this sliding, the spacers can scratch the alignment film on the opposite side, preventing the liquid crystal molecules in the scratched area from properly deflecting and displaying the image. When this scratch extends beyond the black matrix layer's blocking boundary, it becomes visible to the naked eye, resulting in light leakage and color spots under black areas. These color spots are typically red, green, blue, or white; the specific type depends on the location of the scratched pixel.

[0039] Reference Figure 1 The display panel may include an array substrate 100', a color filter substrate 200', and a liquid crystal layer 300' located between the array substrate 100' and the color filter substrate 200'. A spacer PS' may be disposed on one side of the color filter substrate 200'. When subjected to pressure, the spacer PS' will scratch the alignment film on one side of the array substrate 100', resulting in PS mura.

[0040] Reference Figure 2 The display panel may include an array substrate 100', a color filter substrate 200', and a liquid crystal layer located between the array substrate 100' and the color filter substrate 200'. The spacer PS' may include a first spacer PS1' disposed on one side of the array substrate 100' and a second spacer PS2' disposed on one side of the color filter substrate 200'. The first spacer PS1' and the second spacer PS2' may be disposed opposite to each other. The size of the second spacer PS2' may be larger than the size of the first spacer PS1'. When subjected to pressure, the second spacer PS2' will scratch the alignment film on one side of the array substrate 100', resulting in PS mura.

[0041] Figure 3 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically. Figure 4 schematically shown Figure 3 A magnified view of a portion of region A1 in the middle. Figure 5 Schematic illustration along Figure 4 A cross-sectional view taken along the centerline B1-B1'.

[0042] Some embodiments of this disclosure provide a display panel, in conjunction with reference to... Figure 3 , Figure 4 and Figure 5The display panel may include an array substrate 100, a color filter substrate 200 and a liquid crystal layer 300. The color filter substrate 200 and the array substrate 100 are disposed opposite to each other, and the liquid crystal layer 300 is located between the color filter substrate 200 and the array substrate 100.

[0043] The array substrate 100 may include a first substrate 110, a driving circuit layer 120 located on the first substrate 110, and a plurality of spacers PS located on the side of the driving circuit layer 120 away from the first substrate 110. Along the direction from the array substrate 100 to the color filter substrate 200, the cross-sectional area of ​​the spacers PS gradually decreases in the direction parallel to the display surface. The driving circuit layer 120 may include a plurality of driving transistors, a plurality of gate lines, and a plurality of data lines. The plurality of driving transistors may be arranged in an array along a first direction X and a second direction Y, where the first direction X intersects the second direction Y; for example, the first direction X may be perpendicular to the second direction Y. The plurality of gate lines may extend along the first direction X and be arranged along the second direction Y, and at least one gate line may be electrically connected to the gate of the plurality of driving transistors arranged along the first direction X. The plurality of data lines may extend along the second direction Y and be arranged along the first direction X, and at least one data line may be electrically connected to the source of the plurality of driving transistors arranged along the second direction Y.

[0044] The color filter substrate 200 may include a second substrate 210, a color filter layer CF located on the second substrate 210, and an organic capping layer OC located on the side of the color filter layer CF away from the second substrate 210. The color filter layer CF includes a plurality of color filter portions CF1, which are arranged in an array along a first direction X and a second direction Y. The plurality of color filter portions CF1 may include a plurality of red color filter portions CFR, a plurality of green color filter portions CFG, and a plurality of blue color filter portions CFB. The plurality of red color filter portions CFR may be arranged in a row along the second direction Y, the plurality of green color filter portions CFG may be arranged in a row along the second direction Y, the plurality of blue color filter portions CFB may be arranged in a row along the second direction Y, and at least one row of green color filter portions CFG may be located between at least one row of red color filter portions CFR and at least one row of blue color filter portions CFB.

[0045] At least one spacer 410 may be provided between at least two adjacent color filter layers CF1 along the second direction Y. At least a portion of the organic cover layer OC fills the at least one spacer 410 of the color filter layer CF. The organic cover layer OC includes at least one recess 420 located in the region where the at least one spacer 410 is located. The recess 420 is recessed in a direction away from the array substrate 100. The orthographic projection of the at least one recess 420 on the first substrate 110 is located within the orthographic projection of the at least one spacer 410 on the first substrate 110. A portion of the at least one spacer PS on the side near the color filter substrate 200 is located within the at least one recess 420. By providing at least one spacer 410 between at least two adjacent color filter layers CF1 along the second direction Y, the upper organic cover layer OC forms a recess 420 at the spacer 410. The recess 420 can serve as a limiting structure for the spacer PS, which can effectively reduce the sliding degree of the spacer PS when the display panel is subjected to external pressure.

[0046] For example, the depth of the recess 420 is positively correlated with the volume of the color filter layer CF removed at the spacer 410, and the depth of the recess 420 can be positively correlated with the area of ​​the spacer 410. A portion of the organic cover layer OC is filled within the spacer 410, i.e., the depth of the recess 420 = (volume of the color filter layer CF removed at the spacer 410 - volume of the organic cover layer OC filled at the spacer 410) / surface area of ​​the pit bottom of the spacer 410.

[0047] It should be noted that, in order to more clearly illustrate the structure of the spacer PS and the color filter layer CF, some structures in the display panel have been omitted. As needed, the display panel may also include structures such as pixel electrodes, common electrodes, and alignment films.

[0048] According to some exemplary embodiments, in conjunction with reference to Figure 3 , Figure 4 and Figure 5At least one spacer portion 410 may extend along the first direction X. A plurality of color filter portions CF1 arranged adjacent to each other along the first direction X may be located on one side of at least one spacer portion 410 along the second direction Y. Another plurality of color filter portions CF1 arranged adjacent to each other along the first direction X are located on the other side of at least the same spacer portion 410 along the second direction Y. The orthographic projections of a plurality of spacers PS arranged adjacent to each other along the first direction X on the first substrate 110 may at least partially overlap with the orthographic projections of at least the same spacer portion 410 on the first substrate 110. With this configuration, the spacer 410 can be an elongated strip extending along the first direction X. For example, the size of the spacer 410 along the first direction X can be equal to the size of the color filter layer CF along the first direction X. That is, the color filter layer CF can be completely broken along the first direction X at the spacer 410. This can increase the area of ​​the orthogonal projection of the spacer 410 on the first substrate 110. In other words, more film material in the color filter layer CF is removed at the spacer 410, which is beneficial to increase the depth of the recess 420, so that the recess 420 can play a better limiting role for the spacer PS.

[0049] For example, at least two adjacent red color film portions (CFR) along the second direction Y can be spaced apart on both sides of at least one spacer portion 410 along the second direction Y, at least two adjacent green color film portions (CFG) along the second direction Y can be spaced apart on both sides of at least one spacer portion 410 along the second direction Y, and at least two adjacent blue color film portions (CFB) along the second direction Y can be spaced apart on both sides of at least one spacer portion 410 along the second direction Y.

[0050] According to some exemplary embodiments, in conjunction with reference to Figure 3 , Figure 4 and Figure 5 The display panel also includes a black matrix layer BM, which includes a plurality of first black matrix portions BM1 and a plurality of second black matrix portions BM2. The plurality of first black matrix portions BM1 extend along a first direction X and are arranged along a second direction Y, and the plurality of second black matrix portions BM2 extend along the second direction Y and are arranged along the first direction X. The plurality of first black matrix portions BM1 and the plurality of second black matrix portions BM2 are staggered into a grid. The orthographic projection of at least one first black matrix portion BM1 on the first substrate 110 may at least partially overlap with the orthographic projection of at least one gate line on the first substrate 110, and the orthographic projection of at least one second black matrix portion BM2 on the first substrate 110 may at least partially overlap with the orthographic projection of at least one data line on the first substrate 110.

[0051] The orthographic projections of multiple spacers PS on the first substrate 110 can at least partially overlap with the orthographic projections of the same first black matrix portion BM1 on the first substrate 110. The orthographic projections of at least one spacer portion 410 on the first substrate 110 and at least one first black matrix portion BM1 on the first substrate 110 also at least partially overlap. By correspondingly disposing spacers PS in the region where the first black matrix portion BM1 is located, and using the first black matrix portion BM1 to shield the spacers PS, and correspondingly disposing spacers 410 in the region where multiple spacers PS are arranged along the first direction X, the orthographic projections of the spacers 410 on the first substrate 110 and the first black matrix portion BM1 on the first substrate 110 overlap.

[0052] For example, multiple spacing portions 410 can be configured one-to-one with multiple first black matrix portions BM1, and the number of spacing portions 410 can be equal to the number of first black matrix portions BM1, that is, both are the number of rows of sub-pixels in the display panel.

[0053] According to some exemplary embodiments, in conjunction with reference to Figure 3 , Figure 4 and Figure 5 The first black matrix portion BM1 may include a plurality of first sub-parts BM11 and a plurality of second sub-parts BM12. The plurality of first sub-parts BM11 and the plurality of second sub-parts BM12 are alternately connected along a first direction X. The size of the first sub-part BM11 along the second direction Y is larger than the size of the second sub-part BM12 along the second direction Y. The orthographic projections of the plurality of spacers PS on the first substrate 110 respectively overlap at least partially with the orthographic projections of the plurality of first sub-parts BM11 on the substrate. The orthographic projections of the plurality of spacers PS on the first substrate 110 and the orthographic projections of the plurality of second sub-parts BM12 on the substrate are spaced apart.

[0054] For example, the dimension S1 of the spacing portion 410 along the second direction Y can be smaller than the dimension S2 of the second sub-part BM12 along the second direction Y. This allows the orthographic projections of the color filter portion CF1 and the second sub-part BM12 on the first substrate 110 to overlap, meaning that the color filter portion CF1 and the adjacent second sub-part BM12 can form a certain overlap to avoid display abnormalities. The dimension of the overlapping portion of the orthographic projections of the color filter portion CF1 and the second sub-part BM12 on the first substrate 110 along the second direction Y can depend on factors such as fluctuations in the formation process of the color filter layer CF and the formation process of the black matrix layer BM.

[0055] For example, the orthographic projection of at least one color filter portion CF1 on the first substrate 110 and the orthographic projection of at least one second sub-part BM12 on the first substrate 110 overlap to form a first overlapping portion OL1. The dimension of the first overlapping portion OL1 along the second direction Y is ≥ (single-sided fluctuation of black matrix layer CD^2 + single-sided fluctuation of color filter layer CD^2 + overlay_1^2)^0.5, where overlay_1 is the alignment error between the black matrix layer and the color filter layer. For example, the single-sided fluctuation of black matrix layer CD can be 0.25-1 micrometer, the single-sided fluctuation of color filter layer CD can be 0.25-1 micrometer, overlay_1 can be 0.3-3 micrometers, and the dimension of the first overlapping portion OL1 along the second direction Y can be greater than or equal to 0.46 micrometers. By overlapping the edge of the color filter portion with the black matrix layer, problems such as low color gamut and light leakage at pixel boundaries are avoided.

[0056] For example, the dimension S3 of the spacer PS along the second direction Y can be smaller than the dimension S1 of the spacer 410 along the second direction Y, so that the orthographic projection of the spacer PS on the first substrate 110 can fall within the orthographic projection of the spacer 410 on the first substrate 110. With this arrangement, a portion of the spacer PS near the color filter substrate 200 can be located within the recess 420. The difference between the dimension S3 of the spacer PS along the second direction Y and the dimension S1 of the spacer 410 along the second direction Y can depend on factors such as fluctuations in the formation process of the color filter layer CF and fluctuations in the formation process of the spacer PS.

[0057] For example, at least one spacer PS is provided with its orthographic projection on the first substrate 110 and the orthographic projection of the adjacent at least one color filter portion CF1 on the first substrate 110 spaced apart in the second direction Y. The distance between the orthographic projection of the at least one spacer PS on the first substrate 110 and the orthographic projection of the adjacent at least one color filter portion CF1 on the first substrate 110 in the second direction Y is D1≥(color filter layer CD single-sided fluctuation^2+ spacer CD single-sided fluctuation^2+ overlay_6^2+overlay_2^2+ overlay_3^2), where overlay_6 is the alignment error between the spacer and the color filter layer, overlay_2 is the alignment error between the spacer PS and the reference layer (e.g., the source / drain metal layer) on one side of the first substrate, and overlay_3 is the alignment error between the first substrate and the second substrate. By spacing the orthographic projections of the spacer PS and the color filter CF1 by a certain distance, a portion of the spacer PS that is far from the first substrate 110 can be completely located within the recess 420, thereby improving the stability of the spacer PS and preventing the spacer PS from sliding.

[0058] For example, the color filter layer CD unilateral fluctuation can be 0.25-1 micrometer, the septum CD unilateral fluctuation can be 0.5-1.5 micrometer, overlay_6 and overlay_2 can be 0.3-3 micrometer, overlay_3 can be 0.5-4.5 micrometer, and the spacing distance D1 can be greater than or equal to 0.86 micrometer.

[0059] Figure 6 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically. Figure 7 schematically shown Figure 6 A magnified view of a portion of region A2 in the middle. Figure 8 Schematic illustration along Figure 7 A cross-sectional view taken along the centerline B2-B2'.

[0060] According to some exemplary embodiments, in conjunction with reference to Figure 6 , Figure 7 and Figure 8 The black matrix layer BM can be disposed on one side of the color filter substrate 200, and the black matrix layer BM can be located on the side of the color filter layer CF near the second substrate substrate 210. The first black matrix portion BM1 and the second black matrix portion BM2 can both be located on the side of the color filter layer CF near the second substrate substrate 210. The first black matrix portion BM1 can include at least one cutout portion 430. The orthographic projection of the at least one cutout portion 430 on the first substrate substrate 110 can fall within the orthographic projection of at least one spacer portion 410 on the first substrate substrate 110. The orthographic projection of the at least one cutout portion 430 on the first substrate substrate 110 and the orthographic projection of at least one spacer PS on the first substrate substrate 110 at least partially overlap. By providing the cutout portion 430 for the portion of the first black matrix portion BM1 corresponding to the spacer PS, it is beneficial to further increase the depth of the recess 420 at the spacer PS, so that the recess 420 can better limit the spacer PS.

[0061] For example, the depth of the recess 420 is positively correlated with the volume of the color filter layer CF removed at the spacer 410, the depth of the recess 420 can be positively correlated with the area of ​​the spacer 410, the depth of the recess 420 can be positively correlated with the volume of the black matrix layer BM removed at the cutout portion 430, and the depth of the recess 420 can be positively correlated with the area of ​​the cutout portion 430. A portion of the organic overlay layer OC is filled in the spacer 410 and the cutout portion 430, i.e., the depth of the recess 420 = (the volume of the color filter layer CF removed at the spacer 410 + the volume of the black matrix layer BM removed at the cutout portion 430 - the filling volume of the organic overlay layer OC at the spacer 410 and the cutout portion 430) / the pit bottom surface area of ​​the spacer 410.

[0062] For example, the orthographic projections of the plurality of cutout portions 430 on the first substrate 110 can respectively at least partially overlap with the orthographic projections of the plurality of spacers PS on the first substrate 110, and the orthographic projections of the plurality of cutout portions 430 on the first substrate 110 can fall within the orthographic projection of the same spacer portion 410 on the first substrate 110.

[0063] For example, the orthographic projections of the plurality of cutout portions 430 on the first substrate 110 can fall into the orthographic projections of the plurality of spacers PS on the first substrate 110 respectively. By setting the size of the cutout portion 430 to be slightly smaller than that of the spacers PS, while increasing the depth of the recessed portion 420, the problem of light leakage caused by the cutout portion 430 being too large can be avoided, thus preventing display defects.

[0064] For example, the orthographic projection of at least one color filter portion CF1 on the first substrate 110 and the orthographic projection of at least one second sub-portion BM12 on the first substrate 110 overlap to form a first overlapping portion OL1. The dimension of the first overlapping portion OL1 along the second direction Y is ≥ (single-sided fluctuation of black matrix layer CD^2 + single-sided fluctuation of color filter layer CD^2 + overlay_1^2)^0.5, where overlay_1 is the alignment error between the black matrix layer and the color filter layer. For example, the single-sided fluctuation of black matrix layer CD can be 0.25-1 micrometer, the single-sided fluctuation of color filter layer CD can be 0.25-1 micrometer, overlay_1 can be 0.3-3 micrometers, and the dimension of the first overlapping portion along the second direction can be greater than or equal to 0.46 micrometers. By overlapping the edge of the color filter portion with the black matrix layer, the problem of low color gamut and light leakage at the pixel boundary is avoided.

[0065] For example, at least one spacer PS is provided with its orthographic projection on the first substrate 110 and the orthographic projection of the adjacent at least one color filter portion CF1 on the first substrate 110 spaced apart in the second direction Y. The distance between the orthographic projection of the at least one spacer PS on the first substrate 110 and the orthographic projection of the adjacent at least one color filter portion CF1 on the first substrate 110 in the second direction Y is D1≥(color filter layer CD single-sided fluctuation^2+ spacer CD single-sided fluctuation^2+ overlay_6^2+overlay_2^2+ overlay_3^2), where overlay_6 is the alignment error between the spacer and the color filter layer, overlay_2 is the alignment error between the spacer PS and the reference layer (e.g., the source / drain metal layer) on one side of the first substrate, and overlay_3 is the alignment error between the first substrate and the second substrate. By spacing the orthographic projections of the spacer PS and the color filter CF1 by a certain distance, a portion of the spacer PS that is far from the first substrate 110 can be completely located within the recess 420, thereby improving the stability of the spacer PS and preventing the spacer PS from sliding.

[0066] For example, the color filter layer CD unilateral fluctuation can be 0.25-1 micrometer, the septum CD unilateral fluctuation can be 0.5-1.5 micrometer, overlay_6 and overlay_2 can be 0.3-3 micrometer, overlay_3 can be 0.5-4.5 micrometer, and the spacing distance D1 can be greater than or equal to 0.86 micrometer.

[0067] According to some exemplary embodiments, in conjunction with reference to Figure 6 , Figure 7 and Figure 8 The array substrate 100 may further include at least one shielding structure 440, which may be located on the side of the spacer PS close to the first substrate 110. The orthographic projection of the at least one shielding structure 440 on the first substrate 110 and the orthographic projection of the at least one cutout portion 430 on the first substrate 110 at least partially overlap. By adding a shielding structure 440 at the cutout portion 430, the problem of display defects caused by light leakage at the cutout portion 430 can be avoided.

[0068] For example, the orthographic projection of at least one shielding structure 440 on the first substrate 110 can cover the orthographic projection of at least one cutout portion 430 on the first substrate 110, so that the cutout portion 430 formed by the black matrix layer BM can be completely shielded by the shielding structure 440.

[0069] For example, the outer distance D2 of the edge of the orthographic projection of at least one shielding structure 440 on the first substrate 110 relative to the orthographic projection of at least one cutout 430 on the first substrate 110 is greater than or equal to (single-sided fluctuation of black matrix layer CD^2 + single-sided fluctuation of shielding structure 440 CD^2 + overlay_3^2 + overlay_4^2)^0.5, where overlay_3 is the alignment error between the first substrate 110 and the second substrate, and overlay_4 is the alignment error between the layer containing the shielding structure 440 and the reference layer (e.g., a source / drain metal layer) on the first substrate 110. For example, the single-sided fluctuation of the black matrix layer CD can be 0.25-1 micrometer, the single-sided fluctuation of the shielding structure 440 CD can be 0.25-0.5 micrometers, overlay_4 can be 0.3-1.5 micrometers, overlay_3 can be 0.5-4.5 micrometers, and the outer distance D2 can be greater than or equal to 0.68 micrometers.

[0070] It should be noted that the outward extension distance D2 of the edge of the orthogonal projection of the shielding structure 440 on the first substrate 110 relative to the orthogonal projection of the hollow portion 430 on the first substrate 110 should be understood as the distance between the edge of the orthogonal projection of the shielding structure 440 on the first substrate 110 and the edge of the orthogonal projection of the hollow portion 430 on the first substrate 110 along the direction from the center of the orthogonal projection of the hollow portion 430 on the first substrate 110 to the edge.

[0071] For example, the material of the shielding structure 440 may include metal.

[0072] According to some exemplary embodiments, in conjunction with reference to Figure 6 , Figure 7 and Figure 8 The array substrate 100 may include an active layer ACT, a gate metal layer Gate, and a light-shielding layer LS. The gate metal layer Gate may be located on the side of the active layer ACT away from the first substrate 110, and the light-shielding layer LS may be located on the side of the active layer ACT close to the first substrate 110. The active layer ACT includes a plurality of active portions ACT1, the gate metal layer Gate includes a plurality of gate lines GL, and the light-shielding layer LS includes a plurality of light-shielding portions LS1. The orthographic projection of at least one gate line GL on the first substrate 110 may at least partially overlap with the orthographic projection of the plurality of active portions ACT1 on the first substrate 110. At least one gate line GL may serve as the gate of a plurality of driving transistors. The orthographic projection of at least one light-shielding portion LS1 on the first substrate 110 may at least partially overlap with the orthographic projection of at least one active portion ACT1 on the substrate. The light-shielding portion LS1 may block light from the back of the display panel that shines on the active portion ACT1 to avoid device performance deviation of the driving transistors.

[0073] For example, the orthographic projection of at least one gate line GL on the first substrate 110 may at least partially overlap with the orthographic projection of at least one cutout portion 430 on the first substrate 110, that is, at least a portion of at least one gate line GL may serve as at least one blocking structure 440 that blocks at least one cutout portion 430.

[0074] For example, at least one light-shielding portion LS1 and at least one hollow portion 430 on the first substrate 110 have their orthogonal projections on the first substrate 110 at least partially overlapping, that is, at least a portion of the light-shielding portion LS1 can serve as at least one shielding structure 440 that shields at least one hollow portion 430.

[0075] For example, the orthogonal projection of at least one gate line GL on the first substrate 110 can cover the orthogonal projection of at least one cutout portion 430 on the first substrate 110.

[0076] For example, the orthogonal projection of at least one light-shielding portion LS1 on the first substrate 110 can cover the orthogonal projection of at least one cutout portion 430 on the first substrate 110.

[0077] For example, the orthogonal projection of at least one gate line GL on the first substrate 110 can cover a portion of the orthogonal projection of at least one cutout portion 430 on the first substrate 110, and the orthogonal projection of at least one light-shielding portion LS1 on the first substrate 110 can cover another portion of the orthogonal projection of at least one cutout portion 430 on the first substrate 110.

[0078] Figure 9 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically. Figure 10 schematically shown Figure 9 A magnified view of a portion of the central area A3. Figure 11 Schematic illustration along Figure 10 A cross-sectional view taken along the centerline B3-B3'.

[0079] According to some exemplary embodiments, in conjunction with reference to Figure 9 , Figure 10 and Figure 11 The first black matrix portion BM1 can be disposed on one side of the array substrate 100, that is, the first black matrix portion BM1 can be located on the side of the spacer PS close to the first substrate substrate 110. On the side of the color filter substrate 200, the spacer portion 410 of the color filter portion CF1 does not have the first black matrix portion BM1. With this arrangement, it is beneficial to further increase the depth of the recess 420, so that the recess 420 can play a better limiting role for the spacer PS.

[0080] For example, the depth of the recess 420 = (the volume of the color filter layer CF removed at the spacer 410 + the volume of the first black matrix portion BM1 removed at the spacer 410 - the filling volume of the organic cover layer OC at the spacer 410) / the pit bottom surface area of ​​the spacer 410.

[0081] For example, at least one color filter portion CF1 and at least one second sub-portion BM12 are projected onto the first substrate 110 and projected onto the first substrate 110 respectively to form a first overlapping portion OL1. The size of the first overlapping portion OL1 along the second direction Y is ≥ (single-sided fluctuation of the first black matrix portion CD^2 + single-sided fluctuation of the color filter layer CD^2 + overlay_1^2 + overlay_5^2 + overlay_3^2)^0.5, where overlay_1 is the alignment error of the first black matrix portion and the color filter layer, overlay_3 is the alignment error of the first substrate and the second substrate, and overlay_5 is the alignment error of the first black matrix portion and the reference layer (e.g., the source / drain metal layer) on one side of the first substrate. For example, the single-sided fluctuation of the first black matrix layer CD can be 0.25-1 micrometer, the single-sided fluctuation of the color filter layer CD can be 0.25-1 micrometer, overlay_1 and overlay_5 can be 0.3-3 micrometers, overlay_3 can be 0.5-4.5 micrometers, and the size of the first overlapping part OL1 along the second direction Y can be greater than or equal to 0.745 micrometers. By overlapping the edge of the color filter layer with the black matrix layer, the problem of low color gamut and light leakage at pixel boundaries is avoided.

[0082] For example, at least one spacer PS is provided with its orthographic projection on the first substrate 110 and the orthographic projection of the adjacent at least one color filter portion CF1 on the first substrate 110 spaced apart in the second direction Y. The distance between the orthographic projection of the at least one spacer PS on the first substrate 110 and the orthographic projection of the adjacent at least one color filter portion CF1 on the first substrate 110 in the second direction Y is D1≥(color filter layer CD single-sided fluctuation^2+ spacer CD single-sided fluctuation^2+ overlay_6^2+overlay_2^2+ overlay_3^2), where overlay_6 is the alignment error between the spacer and the color filter layer, overlay_2 is the alignment error between the spacer PS and the reference layer (e.g., the source / drain metal layer) on one side of the first substrate, and overlay_3 is the alignment error between the first substrate and the second substrate. By spacing the orthographic projections of the spacer PS and the color filter CF1 by a certain distance, a portion of the spacer PS that is far from the first substrate 110 can be completely located within the recess 420, thereby improving the stability of the spacer PS and preventing the spacer PS from sliding.

[0083] For example, the color filter layer CD unilateral fluctuation can be 0.25-1 micrometer, the spacer CD unilateral fluctuation can be 0.5-1.5 micrometers, overlay_6 and overlay_2 can be 0.3-3 micrometers, overlay_3 can be 0.5-4.5 micrometers, and the spacing distance D1 can be greater than or equal to 0.86 micrometers. Exemplarily, since the first black matrix portion BM1 is disposed on one side of the array substrate 100, the first black matrix portion BM1 does not need to have a cutout portion, so that the orthographic projection of at least one spacer portion 410 on the first substrate substrate 110 can fall within the orthographic projection of at least one first black matrix portion BM1 on the first substrate substrate 110, and the orthographic projections of multiple spacers PS on the first substrate substrate 110 can each fall within the orthographic projection of the same first black matrix portion BM1 on the first substrate substrate 110.

[0084] According to some exemplary embodiments, in conjunction with reference to Figure 9 , Figure 10 and Figure 11 The second black matrix portion BM2 can be disposed on one side of the color filter substrate 200, that is, the second black matrix portion BM2 can be located on the side of the color filter layer CF close to the second substrate substrate 210. The second black matrix portion BM2 is disposed at the junction of two adjacent color filter portions CF1 along the first direction X. The orthographic projection of at least one second black matrix portion BM2 on the first substrate substrate 110 overlaps with the orthographic projections of at least two adjacent color filter portions CF1 along the first direction X on the first substrate substrate 110. At least one second black matrix portion BM2 includes a plurality of third sub-parts BM21 spaced apart along the second direction Y. The orthographic projection of at least one third sub-part BM21 on the first substrate substrate 110 can be located between the orthographic projections of at least two adjacent spacers 410 along the second direction Y on the first substrate substrate 110. The orthographic projections of at least two adjacent third sub-parts BM21 along the second direction Y on the first substrate substrate 110 can be located on both sides of the orthographic projection of at least one spacer PS on the first substrate substrate 110 along the second direction Y.

[0085] By setting the second black matrix portion BM2 on the side of the color filter layer CF close to the second substrate 210, and simultaneously breaking the second black matrix portion BM2 at the spacer portion 410, the spacer PS has a color filter portion CF1 and a second black matrix portion BM2 stacked on both sides along the second direction Y. This helps to further increase the depth of the recess 420, so that the recess 420 can better limit the spacer PS.

[0086] For example, the orthographic projection of the third sub-part BM21 on the first substrate 110 can overlap with the orthographic projection of the first black matrix part BM1 on the first substrate 110 to avoid display defects.

[0087] Figure 12 A plan view of a display panel according to some embodiments of the present disclosure is shown schematically.

[0088] Some embodiments of this disclosure also provide a display device, see reference Figure 12 The display device 1 includes a display panel 10, which may be the display substrate provided in the previous embodiment.

[0089] The display device can include any device or product with display functionality. For example, the display device can be a smartphone, mobile phone, e-book reader, desktop computer (PC), laptop PC, netbook PC, personal digital assistant (PDA), portable multimedia player (PMP), digital audio player, mobile medical device, camera, wearable device (e.g., head-mounted device, electronic clothing, electronic bracelet, electronic necklace, electronic accessory, electronic tattoo, or smartwatch), television set, vehicle display screen, etc.

[0090] While some embodiments of the general concept of this disclosure have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A display panel, wherein, The display panel includes: An array substrate, the array substrate comprising a first substrate and a plurality of spacers located on the first substrate; A color filter substrate is disposed opposite to the array substrate. The color filter substrate includes a second substrate, a color filter layer located on the side of the second substrate closer to the array substrate, and an organic capping layer located on the side of the color filter layer closer to the array substrate. A liquid crystal layer is located between the array substrate and the color filter substrate. The color filter layer includes a plurality of color filter portions, which are arranged in an array along a first direction and a second direction. The first direction and the second direction intersect. At least two adjacent color filter portions along the second direction have at least one spacer. The organic cover layer includes at least one recess located in the region of at least one spacer. The recess is recessed in a direction away from the array substrate. A portion of at least one spacer near the color filter substrate is located within at least one recess.

2. The display panel according to claim 1, wherein, At least one of the spacers extends along the first direction, and a plurality of color filter portions arranged adjacent to each other along the first direction are located on one side of at least one of the spacers along the second direction, and a plurality of other color filter portions arranged adjacent to each other along the first direction are located on the other side of at least the same spacer along the second direction. as well as The orthographic projections of the plurality of spacers arranged adjacent to each other along the first direction on the first substrate overlap at least partially with the orthographic projections of at least one of the spacers on the first substrate.

3. The display panel according to claim 2, wherein, The display panel further includes a black matrix layer, which includes a plurality of first black matrix portions and a plurality of second black matrix portions. The plurality of first black matrix portions extend along the first direction and are arranged along the second direction, and the plurality of second black matrix portions extend along the second direction and are arranged along the first direction. The orthographic projection of at least one of the spacers on the first substrate and the orthographic projection of at least one of the first black matrix portions on the first substrate at least partially overlap, and / or, the orthographic projections of a plurality of spacers on the first substrate at least partially overlap with the orthographic projection of the same first black matrix portion on the first substrate.

4. The display panel according to claim 3, wherein, The first black matrix part includes a plurality of first sub-parts and a plurality of second sub-parts, the plurality of first sub-parts and the plurality of second sub-parts being alternately connected along the first direction, and the dimension of the first sub-parts along the second direction being larger than the dimension of the second sub-parts along the second direction; The dimension of the spacer portion along the second direction is smaller than the dimension of the second sub-part along the second direction, and / or, the orthographic projection of at least one color filter portion on the first substrate and the orthographic projection of at least one second sub-part on the first substrate overlap to form a first overlapping portion, the dimension of the first overlapping portion along the second direction being greater than or equal to 0.46 micrometers, and / or, the dimension of the spacer material along the second direction is smaller than the dimension of the spacer portion along the second direction, and / or, the orthographic projection of at least one spacer material on the first substrate and the orthographic projection of at least one adjacent color filter portion on the first substrate are spaced apart in the second direction, and the spacing distance along the second direction is greater than or equal to 0.86 micrometers.

5. The display panel according to claim 3 or 4, wherein, The black matrix layer is located on the side of the organic cover layer near the second substrate. The first black matrix includes at least one cutout portion. The orthographic projection of at least one cutout portion on the first substrate falls within the orthographic projection of at least one spacer portion on the first substrate. The orthographic projection of at least one cutout portion on the first substrate and the orthographic projection of at least one spacer on the first substrate at least partially overlap.

6. The display panel according to claim 5, wherein, The orthographic projections of the plurality of cutout portions on the first substrate fall within the orthographic projection of the same spacer portion on the first substrate, and / or, the orthographic projections of the plurality of cutout portions on the first substrate fall within the orthographic projections of the plurality of spacers on the first substrate.

7. The display panel according to claim 5, wherein, The array substrate further includes at least one shielding structure, the orthographic projection of at least one shielding structure on the first substrate covers the orthographic projection of at least one of the cutout portions on the first substrate, and the edge of the orthographic projection of at least one shielding structure on the first substrate has an outward extension distance of greater than or equal to 0.68 micrometers relative to the orthographic projection of at least one of the cutout portions on the first substrate.

8. The display panel according to claim 7, wherein, The array substrate includes an active layer, a gate metal layer, and a light-shielding layer. The gate metal layer is located on the side of the active layer away from the first substrate, and the light-shielding layer is located on the side of the active layer close to the first substrate. The active layer includes a plurality of active portions, the gate metal layer includes a plurality of gate lines, the light-shielding layer includes a plurality of light-shielding portions, and the orthographic projection of at least one of the gate lines on the first substrate and the orthographic projection of the plurality of active portions on the first substrate at least partially overlap, and the orthographic projection of at least one of the light-shielding portions on the first substrate and the orthographic projection of at least one of the active portions on the substrate at least partially overlap. as well as The orthographic projection of at least one of the gate lines on the first substrate and the orthographic projection of at least one of the cutout portions on the first substrate at least partially overlap, and / or, the orthographic projection of at least one of the light-shielding portions on the first substrate and the orthographic projection of at least one of the cutout portions on the first substrate at least partially overlap.

9. The display panel according to claim 3 or 4, wherein, The first black matrix portion is located on the side of the spacer closest to the first substrate, and the orthographic projection of at least one of the spacers on the first substrate falls within the orthographic projection of at least one of the first black matrix portions on the first substrate, and / or, the orthographic projections of multiple spacers on the first substrate fall within the same orthographic projection of the first black matrix portion on the first substrate.

10. The display panel according to claim 9, wherein, The second black matrix portion is located on the side of the color filter layer closer to the second substrate, and the orthographic projection of at least one of the second black matrix portions on the first substrate overlaps with the orthographic projections of at least two adjacent color filter portions along the first direction on the first substrate. as well as At least one of the second black matrix portions includes a plurality of third sub-portions spaced apart along the second direction, and the orthographic projection of at least one of the third sub-portions on the first substrate is located between the orthographic projections of at least two adjacent spaced portions on the first substrate along the second direction.

11. A display device, wherein, The display device includes a display panel according to any one of claims 1-10.

Images