Display panel and display device

Abstract

The utility model discloses a display panel and a display device. The display panel comprises a frame sealing adhesive which surrounds a display area of the display panel; the spacer layer comprises a first supporting dam and a second supporting dam, the frame sealing glue is surrounded by the first supporting dam, and the display area is surrounded by the second supporting dam on the side, close to the display area, of the frame sealing glue; the color resistance layer comprises a third supporting dam and a fourth supporting dam, the orthographic projection of the third supporting dam on the display surface of the display panel is overlapped with the orthographic projection of the first supporting dam on the display surface, and the orthographic projection of the fourth supporting dam on the display surface is overlapped with the orthographic projection of the second supporting dam on the display surface.

Description

Technical Field

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

[0002] Thin Film Transistor Liquid Crystal Displays (TFT-LCDs) are characterized by their small size, low power consumption, high image quality, no radiation, and portability. They have experienced rapid development in recent years and have gradually replaced traditional cathode ray tube (CRT) displays, dominating the current flat panel display market. Currently, TFT-LCDs are widely used in products of various sizes, covering almost all major electronic products in today's information society, such as LCD TVs, high-definition digital TVs, computers (desktops and laptops), mobile phones, tablets, navigation systems, in-vehicle displays, projection displays, cameras, digital cameras, electronic watches, calculators, electronic instruments, meters, public displays, and virtual displays. Utility Model Content

[0003] The specific solutions for the display panel and display device provided in this disclosure are as follows:

[0004] On one hand, embodiments of this disclosure provide a display panel, including:

[0005] Sealing adhesive, the sealing adhesive surrounding the display area of ​​the display panel;

[0006] The spacer layer includes a first support dam and a second support dam, the first support dam surrounding the sealing adhesive, and the second support dam surrounding the display area on the side of the sealing adhesive near the display area;

[0007] The color resist layer includes a third support dam and a fourth support dam. The orthographic projection of the third support dam on the display surface of the display panel overlaps with the orthographic projection of the first support dam on the display surface, and the orthographic projection of the fourth support dam on the display surface overlaps with the orthographic projection of the second support dam on the display surface.

[0008] In some embodiments, in the display panel provided in the present disclosure, the spacer layer further includes a plurality of first support islands between the first support dam and the second support dam, wherein the orthographic projections of the plurality of first support islands on the display surface overlap with the orthographic projections of the third support dam and / or the fourth support dam on the display surface.

[0009] In some embodiments, in the display panel provided in the present disclosure, the spacer layer further includes a plurality of first support islands between the first support dam and the second support dam, and the color resist layer further includes a plurality of second support islands between the third support dam and the fourth support dam, wherein the orthographic projections of the plurality of first support islands on the display surface and the orthographic projections of the plurality of second support islands on the display surface overlap each other.

[0010] In some embodiments, in the display panel provided in the present disclosure, the spacer layer further includes a main spacer located in the display area, and the height of the first support island perpendicular to the display surface is approximately the same as the height of the main spacer perpendicular to the display surface.

[0011] In some embodiments, the display panel provided in the present disclosure further includes an array substrate and a counter substrate placed opposite each other. The array substrate includes an electrically connected common electrode line and a switching electrode. The counter substrate includes a first common electrode. At least a portion of one of the switching electrode and the first common electrode is disposed at the top of the first support dam and / or the top of the second support dam. The switching electrode is in contact with the first common electrode at the top of the first support dam and / or the top of the second support dam.

[0012] In some embodiments, in the display panel provided in the present disclosure, the sealing adhesive includes a first side near the first support dam and a second side near the second support dam; the adapter electrode contacts the first side and the top of the first support dam, and / or the adapter electrode contacts the second side and the top of the second support dam.

[0013] In some embodiments, in the display panel provided in the present disclosure, the sealing adhesive includes a first side near the first support dam and a second side near the second support dam; the first common electrode contacts the first side and the top of the first support dam, and / or the first common electrode contacts the second side and the top of the second support dam.

[0014] In some embodiments, in the display panel provided in the present disclosure, the sealing adhesive includes a first side surface near the first support dam and a second side surface near the second support dam; the adapter electrode and the first common electrode simultaneously contact the first side surface, and the adapter electrode contacts the top of the first support dam, the first common electrode contacts the top of the third support dam, and / or, the adapter electrode and the first common electrode simultaneously contact the second side surface, and the adapter electrode contacts the top of the second support dam, the first common electrode contacts the top of the fourth support dam.

[0015] In some embodiments, in the display panel provided in the present disclosure, the cross-sections of the first support dam and the second support dam perpendicular to the display surface are trapezoidal. The trapezoid includes a first base side that contacts the transfer electrode or the first common electrode, and a second base side that is opposite to the first base side. The base angle on the side where the second base side is located is less than 50°.

[0016] In some embodiments, in the display panel provided in the present disclosure, the spacer layer further includes a plurality of first support islands between the first support dam and the second support dam, and the transfer electrode is hollowed out at the plurality of first support islands.

[0017] In some embodiments, in the display panel provided in the present disclosure, the spacer layer further includes a plurality of first support islands between the first support dam and the second support dam, and the orthographic projection of the transfer electrode on the display surface overlaps with the orthographic projection of the plurality of first support islands on the display surface.

[0018] In some embodiments, in the display panel provided in the present disclosure, the array substrate includes an insulating layer, the insulating layer being a planar structure covering the area where the sealant is located, the area where the third support dam is located, and the area where the fourth support dam is located, and the common electrode line is electrically connected to the transfer electrode through at least one via penetrating the insulating layer.

[0019] In some embodiments, in the display panel provided in the present disclosure, there are multiple vias, which are divided into multiple groups arranged in a first direction, and adjacent vias are arranged side by side or staggered in the first direction, where the first direction is the arrangement direction of the first support dam and the second support dam.

[0020] In some embodiments, in the display panel provided in the present disclosure, the transition electrode includes a plurality of block electrodes arranged along a second direction, the second direction being the extension direction of the first support dam.

[0021] In some embodiments, in the display panel provided in the present disclosure, the array substrate includes a gate line, a pixel electrode, and a second common electrode located in the display area, wherein the common electrode line is on the same layer as the gate line, and the transition electrode is on the same layer as the pixel electrode or the second common electrode.

[0022] In some embodiments, the display panel provided in the present disclosure further includes an array substrate, which includes mutually insulated pixel electrodes and a common electrode.

[0023] In some embodiments, in the display panel provided in the present disclosure, the sealing adhesive includes a first side near the first support dam and a second side near the second support dam, the first support dam being in contact with the first side and the second support dam being in contact with the second side.

[0024] In some embodiments, in the display panel provided in the present disclosure, the array substrate includes the spacer layer and the color resist layer; or, the opposing substrate includes the spacer layer and the color resist layer; or, the array substrate includes the spacer layer and the opposing substrate includes the color resist layer.

[0025] In some embodiments, in the display panel provided in the present disclosure, the spacer layer further includes a main spacer located in the display area, wherein the height of the first support dam perpendicular to the display surface, the height of the second support dam perpendicular to the display surface, and the height of the main spacer perpendicular to the display surface are approximately the same as the height of the main spacer perpendicular to the display surface.

[0026] On the other hand, this disclosure provides a display device, including the display panel provided in this disclosure and a backlight module located on the light-incident side of the display panel. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this disclosure;

[0028] Figure 2 for Figure 1 A magnified structural diagram of the Z-region in the middle;

[0029] Figure 3 For along Figure 2 Cross-sectional view of line I-I' in the middle;

[0030] Figure 4 for Figure 1 Another structural diagram of the Z region;

[0031] Figure 5 For along Figure 4 Schematic diagram of the structure of line II-II';

[0032] Figure 6 for Figure 1 Another structural diagram of the Z region;

[0033] Figure 7 For along Figure 6 Schematic diagram of the structure of line III-III';

[0034] Figure 8 for Figure 1 Another structural diagram of the Z region;

[0035] Figure 9 For along Figure 8 Schematic diagram of the structure of the IV-IV' line;

[0036] Figure 10 For along Figure 2 Another structural diagram of the I-I' line in the middle;

[0037] Figure 11 For along Figure 2 Another structural diagram of the I-I' line in the middle;

[0038] Figure 12 For along Figure 2 Another structural diagram of the I-I' line in the middle;

[0039] Figure 13 A schematic diagram illustrating the fabrication of a supporting dam using different mask plates, provided in an embodiment of this disclosure;

[0040] Figure 14 For along Figure 2 Another structural diagram of the I-I' line. Detailed Implementation

[0041] 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. It should be noted that, for clarity, the thickness of layers, films, panels, regions, etc., is enlarged in the drawings. Exemplary embodiments are described in this disclosure with reference to cross-sectional views as schematic diagrams of idealized embodiments. Thus, deviations from the shape of the figures will be expected as a result of, for example, manufacturing techniques and / or tolerances. Therefore, the embodiments described in this disclosure should not be construed as limited to the specific shape of the regions shown in this disclosure, but rather include deviations in shape caused, for example, by manufacturing processes. For example, a region illustrated or described as flat may typically have rough and / or non-linear characteristics; a sharp corner illustrated may be rounded, etc. Therefore, the regions shown in the figures are schematic in nature, and their dimensions and shapes are not intended to illustrate the precise shape of the regions or reflect true proportions; their purpose is merely to illustrate the content of this disclosure. And throughout, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted.

[0042] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure and the claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “inner,” “outer,” “upper,” and “lower” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0043] In the following description, when an element or layer is referred to as "on" or "connected to" another element or layer, the element or layer may be directly on or directly connected to the other element or layer, or there may be intermediate elements or intermediate layers. When an element or layer is referred to as "located on one side of" another element or layer, the element or layer may be directly on or directly connected to the other element or layer, or there may be intermediate elements or intermediate layers. However, when an element or layer is referred to as "directly on" or "directly connected to" another element or layer, no intermediate elements or intermediate layers are present. The term "and / or" includes any and all combinations of one or more of the related listed items.

[0044] In LCD panels, ball spacers are added to the sealant to provide support and ensure the required strength. Because different products have varying cell gaps and significant differences in the design of the surrounding film layers, ball spacers of different particle sizes are needed, increasing costs and complicating management.

[0045] To address the aforementioned technical problems, this disclosure provides a display panel. Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this disclosure. Figure 2 for Figure 1 A magnified structural diagram of the Z-region. Figure 3 For along Figure 2 Cross-sectional view of line I-I', as shown Figures 1 to 3 As shown, the display panel of this disclosure includes:

[0046] Sealing adhesive 101 surrounds the display area AA of the display panel. Sealing adhesive 101 seals the array substrate TFT and the opposing substrate CF, preventing liquid crystal leakage. The display area AA may include red sub-pixel areas, green sub-pixel areas, blue sub-pixel areas, etc.

[0047] The spacer layer 102 includes a first support dam B1 and a second support dam B2. The first support dam B1 surrounds the sealing frame adhesive 101, and the second support dam B2 surrounds the display area AA on the side of the sealing frame adhesive 101 near the display area AA. That is, the first support dam B1 is located outside the sealing frame adhesive 101, and the second support dam B2 is located inside the sealing frame adhesive 101.

[0048] The color resist layer 103 includes a third support dam B3 and a fourth support dam B4. The orthographic projection of the third support dam B3 onto the display surface of the display panel (i.e., the surface facing the substrate CF) overlaps with the orthographic projection of the first support dam B1 onto the display surface. The orthographic projection of the fourth support dam B4 onto the display surface overlaps with the orthographic projection of the second support dam B2 onto the display surface. In some embodiments, the orthographic projection of the first support dam B1 onto the display surface lies within the orthographic projection of the third support dam B3 onto the display surface, and the orthographic projection of the second support dam B2 onto the display surface lies within the orthographic projection of the fourth support dam B4 onto the display surface. The color resist layer 103 may include at least one of a red color resist, a green color resist, and a blue color resist. Figure 3 The diagram illustrates a single color resist layer. Optionally, two or three layers of color resist layers can be stacked in a direction perpendicular to the display panel. The color resist colors of the multiple layers can be the same or different, and this is not limited here.

[0049] In the display panel provided in this embodiment, the outer third support dam B3 of the sealing adhesive 101 is superimposed with the first support dam B1, and the inner fourth support dam B4 of the sealing adhesive 101 is superimposed with the second support dam B2, which can replace the ball spacer to provide support. Furthermore, unilateral support of the sealing adhesive 101 is prone to a seesaw effect; this disclosure provides good stability and uniformity in the support on both the inner and outer sides of the sealing adhesive 101. In addition, the first support dam B1 and the second support dam B2 can also limit the sealing adhesive 101 between them, improving the manufacturing precision of the sealing adhesive 101 and ensuring the height uniformity of the sealing adhesive 101. Moreover, since the first support dam B1 and the second support dam B2 are a completely enclosed design, they can effectively prevent moisture from entering the liquid crystal cell, improving the stability of the display panel.

[0050] In some embodiments, Figure 4 for Figure 1 Another structural diagram of the Z region. Figure 5 For along Figure 4 A schematic diagram of the structure of line II-II', from Figure 4 and Figure 5 As can be seen, the spacer layer 102 may also include a plurality of first support islands D1 between the first support dam B1 and the second support dam B2. The orthographic projections of the plurality of first support islands D1 on the display surface overlap with the orthographic projections of the third support dam B3 and / or the fourth support dam B4 on the display surface. For large-size products, the sealing adhesive 101 is relatively wide (e.g., wider than 1500 μm). By adding a plurality of dot-shaped or columnar first support islands D1 between the first support dam B1 and the second support dam B2 (e.g., at the middle position of the sealing adhesive 101), the support strength and uniformity of the large-size product can be effectively enhanced. Furthermore, during the coating process of the sealing adhesive 101, the sealing adhesive 101 can overflow into the first support dam B1 or the second support dam B2 at the gaps between the first support islands D1, which helps to improve the thickness uniformity of the sealing adhesive 101 and enhance the sealing effect.

[0051] In some embodiments, the heights of the first support island D1, the first support dam B1, and the second support dam B2 along the vertical display surface can be approximately the same as the height of the main septum (Main PS) perpendicular to the display surface. This results in a compression ratio of 5% to 20% for the first support dam B1, the second support dam B2, and the first support island D1, ensuring good conductivity between the transition electrode 105 and the first common electrode 106 mentioned later. Optionally, the shape of the first support island D1 differs from that of the main septum, and the slope of the first support island D1 can be gentler. The slopes of the first support dam B1 and the second support dam B2 can also be gentler to facilitate electrode climbing. It should be noted that in the embodiments provided in this disclosure, due to limitations in process conditions or the influence of other factors such as measurement, the above-mentioned "approximately the same" may be completely identical or may have some deviations. Therefore, as long as the "approximately the same" relationship between the above-mentioned features satisfies the allowable error, it falls within the protection scope of this disclosure.

[0052] In some embodiments, Figure 6 for Figure 1 Another structural diagram of the Z region. Figure 7 For along Figure 6 A schematic diagram of the structure of line III-III', from Figure 6 and Figure 7As can be seen, the color resist layer 103 may also include multiple second support islands D2 between the third support dam B3 and the fourth support dam B4. The orthographic projections of the multiple first support islands D1 on the display surface overlap with the orthographic projections of the multiple second support islands D2 on the display surface. Optionally, the orthographic projection of the first support island D1 on the display surface is located within the orthographic projection of the second support island D2 on the display surface. This stacking of the second support islands D2 and the first support islands D1 not only achieves a stable support effect, but also ensures a large longitudinal space between the second support islands D2 and the third support dam B3, and between the second support islands D2 and the fourth support dam B4, perpendicular to the display surface. This increases the amount of sealant 101 used in this longitudinal space and reduces the risk of sealant 101 peeling off.

[0053] In some embodiments, in the display panel provided in the present disclosure, such as Figures 1 to 3 As shown, the array substrate TFT may include an electrically connected common electrode line 104 (e.g., on the same layer as the gate metal layer) and a transition electrode 105 (e.g., on the same layer as the pixel electrode or the second common electrode of the array substrate TFT). The opposing substrate CF may include a first common electrode 106. In some embodiments, the electric field between the first common electrode 106 and the pixel electrode drives the liquid crystal deflection, and the second common electrode and the pixel electrode form a storage capacitor. Optionally, the transition electrode 105 and the first common electrode 106 are electrically connected in contact at the top of the first support dam B1 and / or the top of the second support dam B2. To improve the support strength and achieve stability of the common voltage signal conduction, the bottom width of the first support dam B1 and the bottom width of the second support dam B2 may be greater than 100 μm, the bottom of the third support dam B3 may be extended by more than 50 μm compared to the bottom of the first support dam B1, and the bottom of the fourth support dam B4 may be extended by more than 50 μm compared to the bottom of the second support dam B2.

[0054] Because the sealant 101 contains small Si particles, if the support dam is located inside the sealant 101 (rather than on the inner or outer sides of the sealant 101), the top of the support dam is relatively flat (non-spherical). The Si particles can easily lead to poor conductivity between the first common electrode 106 and the transfer electrode 105, affecting the display effect. This disclosure sets the first common electrode 106 and the transfer electrode 105 to be electrically connected at the top of the support dam on the inner or outer sides of the sealant 101, ensuring the stability and uniformity of the conductivity and achieving stable transmission of the common voltage signal com. In addition, in related technologies, the transfer electrode 105 can be electrically connected to the first common electrode 106 through conductive particles (e.g., gold balls) in the sealant 101. However, different products have different cell gaps, requiring matching conductive particles of different sizes, which increases cost and management complexity to some extent. This disclosure adopts a contact-based electrical connection scheme between the transfer electrode 105 and the first common electrode 106, thus eliminating the need to dope the sealant 101 with conductive particles C, further saving costs and simplifying management.

[0055] In some embodiments, such as Figure 2 As shown, the adapter electrode 105 can be an electrode arranged in a full circle. In other embodiments, such as Figures 4 to 7 As shown, the adapter electrode 105 may include a plurality of block electrodes arranged along a second direction, which is the extension direction of the first support dam B1 (for example, the second direction is the Y direction at the left and right edges and the second direction is the X direction at the top and bottom edges). This allows for the transmission of a common voltage signal in different block electrodes, while also helping to improve the etching uniformity of the adapter electrode 105 and reduce risks such as peeling.

[0056] In some embodiments, Figure 8 for Figure 1 Another structural diagram of the Z region. Figure 9 For along Figure 8 A schematic diagram of the structure of the IV-IV' line, from Figure 8 and Figure 9 It can be seen that the orthographic projection of the adapter electrode 105 on the display surface can also overlap with the orthographic projections of the plurality of first support islands D1 on the display surface. For example, the orthographic projection of the adapter electrode 105 on the display surface covers the orthographic projections of the plurality of first support islands D1 on the display surface. In other embodiments, such as Figures 4 to 7 As shown, the adapter electrode 105 can also be hollowed out at multiple first support islands D1, so that the top of the first support island D1 and the adapter electrode 105 do not overlap, so as to prevent Si particles in the sealant 101 from affecting the conductivity.

[0057] In some embodiments, Figure 10 , Figure 11 and Figure 12 respectively along Figure 2Another structural diagram of the I-I' line is shown below. Figures 2 to 12 It is understood that the sealing adhesive 101 includes a first side w1 near the first support dam B1 and a second side w2 near the second support dam B2. In order to ensure uniform conductivity, this disclosure may set one of the transfer electrode 105 and the first common electrode 106 to contact the first side w1 and / or the second side w2; or, the transfer electrode 105 and the first common electrode 106 may simultaneously contact the first side w1 and / or the second side w2.

[0058] For example, in Figures 2 to 7 The intermediate electrode 105 contacts the first side w1 and the second side w2, and extends from the first side w1 to the top of the first support dam B1, where it is electrically connected to the first common electrode 106; simultaneously, it extends from the second side w2 to the top of the second support dam B2, where it is electrically connected to the first common electrode 106. Figure 8 and Figure 9 The intermediate electrode 105 only contacts the first side surface w1, and extends from the first side surface w1 to the top of the first support dam B1 to make contact with the first common electrode 106 for electrical connection. Figure 10 and Figure 11 The first common electrode 106 contacts the first side surface w1 and the second side surface w2, and extends from the first side surface w1 to the top of the first support dam B1 and is electrically connected to the transfer electrode 105, while extending from the second side surface w2 to the top of the second support dam B2 and being electrically connected to the transfer electrode 105. Figure 12 The intermediate transfer electrode 105 and the first common electrode 106 simultaneously contact the first side w1 and the second side w2. The transfer electrode 105 extends from the first side w1 to the top of the first support dam B1 and from the second side w2 to the top of the second support dam B2. The first common electrode 106 extends from the first side w1 to the top of the third support dam B3 and from the second side w2 to the top of the fourth support dam B3. Thus, the transfer electrode 105 and the first common electrode 106 are electrically connected between the top of the first support dam B1 and the top of the third support portion B3, and between the top of the second support dam B2 and the top of the fourth support portion B4.

[0059] In some embodiments, Figure 13 A schematic diagram of the supporting dam fabricated using a normal mask M1, a slit mask M2, and a halftone mask M3 is shown. Figure 13It is evident that the slope of the support dam prepared using a normal mask is steeper (greater than or equal to 50°), while the slope of the support dam prepared using a slit mask or HTM mask is gentler (less than 50°). A gentler slope is more conducive to electrode climbing. Therefore, to improve the uniformity of the climbing electrodes and prevent electrode breakage, this disclosure uses a slit mask or HTM mask to fabricate the first support dam B1 and the second support dam B2, such that the cross-section of the first support dam B1 and the second support dam B2 perpendicular to the display surface is trapezoidal. The trapezoid includes a first base edge that contacts the transition electrode 105 or the first common electrode 106, and a second base edge opposite to the first base edge. The base angle θ on the side where the second base edge is located is less than 50° (e.g., 10°, 20°, 30°, 40°, etc.). Figure 3 , Figure 5 , Figure 7 , Figures 9 to 12 As shown.

[0060] In some embodiments, in the display panel provided in the present disclosure, such as Figure 6 and Figure 7 As shown, the array substrate TFT may include an insulating layer 107. The insulating layer 107 is a planar structure covering the area where the sealant 101, the area where the third support dam B3, and the area where the fourth support dam B4 are located. Thus, on the outside of the sealant 101, the third support dam B3, the insulating layer 107, and the first support dam B1 jointly provide support, and on the inside of the sealant 101, the fourth support dam B4, the insulating layer 107, and the second support dam B2 jointly provide support, improving support stability. Optionally, the common electrode line 104 (e.g., located in the gate metal layer) is electrically connected to the transition electrode 105 (e.g., located in the pixel electrode layer) through at least one via V penetrating the insulating layer 107. When there are multiple vias V, the multiple vias V can be divided into multiple groups arranged in the first direction (e.g., ...). Figure 6 The two sets shown), and adjacent vias V in the first direction can be arranged side by side (e.g. Figure 6 (As shown) or staggered arrangement, the first direction is the arrangement direction of the first support dam B1 and the second support dam B2, for example, the first direction is the X direction on the left and right edges, and the first direction is the Y direction on the top and bottom edges. The insulating layer 107 may include a first insulating layer IL1 located between the gate metal layer and the active layer, a second insulating layer IL2 located between the active layer and the source / drain metal layer, and a third insulating layer IL3 located between the source / drain metal layer and the pixel electrode layer.

[0061] In some embodiments, such as Figure 3As shown, the spacer layer 102 and color resist layer 103 of this disclosure can be disposed in the array substrate TFT. In this case, the spacer layer 102 can be located on the side of the third insulating layer IL3 away from the second insulating layer IL2, and the color resist layer 103 can be located between the second insulating layer IL2 and the third insulating layer IL3. Of course, in some embodiments, such as Figure 10 and Figure 11 As shown, the spacer layer 102 and the color resist layer 103 can also be uniformly disposed in the color filter substrate CF, with the color resist layer 103 and the spacer layer 102 disposed between the black matrix 108 and the first common electrode 106, the color resist layer 103 in contact with the black matrix 108, and the spacer layer 102 in contact with the first common electrode 106. Optionally, as shown... Figure 10 As shown, the color resist layer 103 and the spacer layer 102 can be disposed in contact, or, as... Figure 11 As shown, a planarization layer 109 may also be provided between the color resist layer 103 and the spacer layer 102. In other embodiments, such as Figure 12 As shown, the spacer layer 102 is disposed in the array substrate TFT. Specifically, the spacer layer 102 may be located on the side of the third insulating layer IL3 away from the second insulating layer IL2. The color resist layer 103 is disposed in the opposing substrate CF. Specifically, the color resist layer 103 is disposed between the black matrix 108 and the first common electrode 106.

[0062] In some embodiments, the support dams and support islands provided in this disclosure can also be applied to ADS products. The corresponding array substrate TFT includes mutually insulated pixel electrodes and common electrodes. Optionally, the common electrode and pixel electrodes are disposed in opposite layers with insulation, or the common electrode and pixel electrodes are disposed in the same layer with insulation. In this case, the common electrode can be directly connected to a common voltage signal without the need for a transfer electrode. Therefore, there is no longer a transfer electrode 105 or a first common electrode 106 between the first support dam B1 and the sealant 101, and there is also no longer a transfer electrode 105 or a first common electrode 106 between the second support dam B1 and the sealant 101. Thus, the first support dam B1 can contact the first side w1 of the sealant 101 near the first support dam B1, and the second support dam B2 can contact the second side w2 of the sealant 101 near the second support dam B2. Figure 14 As shown.

[0063] In some embodiments, in the display panel provided in the present disclosure, such as Figure 3As shown, the array substrate TFT may further include signal lines 110 (including but not limited to clock signal line clk, frame start signal line STV, ground line GND, etc.) on the same layer as the common electrode line 103. The array substrate TFT may further include a first substrate 111, and the opposing substrate CF may further include a second substrate 112. When the first support dam B1 and the second support dam B2 are part of the array substrate TFT, the top of the first support dam B1 and the top of the second support dam B2 are the ends of the first support dam B1 that are away from the first substrate 111. When the first support dam B1 and the second support dam B2 are part of the opposing substrate CF, the top of the first support dam B1 and the top of the second support dam B2 are the ends of the first support dam B1 that are away from the second substrate 111. Other essential components of the display panel are those that should be understood by those skilled in the art and are not described in detail here, nor should they be construed as limiting this disclosure.

[0064] Based on the same inventive concept, this disclosure provides a display device, including the display panel described above and a backlight module located on the light-incident side of the display panel. The backlight module can be a direct-lit backlight module or an edge-lit backlight module. Optionally, the edge-lit backlight module may include LED strips, stacked reflective sheets, light guide plates, diffusers, prism groups, etc., with the LED strips located on one side of the thickness direction of the light guide plate. The direct-lit backlight module may include a matrix light source, a reflective sheet, a diffuser plate, and a brightness enhancement film stacked on the light-emitting side of the matrix light source, with the reflective sheet including openings directly opposite the positions of the LEDs in the matrix light source. The LEDs in the LED strips and the LEDs in the matrix light source can be light-emitting devices (LEDs), such as quantum dot LEDs (QLEDs) or micro-light-emitting devices (e.g., Mini LEDs, Micro LEDs).

[0065] Among them, micro-light-emitting devices at the sub-millimeter or even micrometer scale, like organic light-emitting devices (OLEDs), belong to the category of self-emissive devices. Like OLEDs, they possess a series of advantages such as high brightness, ultra-low latency, and ultra-wide viewing angles. Furthermore, because inorganic light-emitting devices achieve light emission based on more stable and lower-resistance metal semiconductors, they offer advantages over OLEDs based on organic materials, including lower power consumption, greater resistance to high and low temperatures, and longer lifespan. Moreover, when micro-light-emitting devices are used as backlights, they can achieve more precise dynamic backlighting effects, effectively improving screen brightness and contrast while also solving the glare phenomenon caused by traditional dynamic backlighting between bright and dark areas of the screen, thus optimizing the visual experience.

[0066] In some embodiments, the display device provided in this disclosure can be any product or component with display function, such as a projector, 3D printer, virtual reality device, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, navigator, smartwatch, fitness wristband, or personal digital assistant. Optionally, the display device provided in this disclosure includes, but is not limited to, components such as a radio frequency unit, network module, audio output & input unit, sensor, display unit, user input unit, interface unit, and control chip. Optionally, the control chip is a central processing unit, digital signal processor, system-on-a-chip (SoC), etc. For example, the control chip may also include a memory, a power module, etc., and achieve power supply and signal input / output functions through additionally provided wires, signal lines, etc. For example, the control chip may also include hardware circuits and computer-executable code. The hardware circuit may include conventional very-large-scale integrated circuits (VLSI) or gate arrays, as well as existing semiconductors or other discrete components such as logic chips and transistors; the hardware circuit may also include field-programmable gate arrays, programmable array logic, programmable logic devices, etc. Furthermore, those skilled in the art will understand that the above structure does not constitute a limitation on the display device provided in the embodiments of this disclosure. In other words, the display device provided in the embodiments of this disclosure may include more or fewer of the above components, or combine certain components, or have different component arrangements.

[0067] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0068] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this disclosure without departing from the spirit and scope of the embodiments of this disclosure. Therefore, if these modifications and variations to the embodiments of this disclosure fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include these modifications and variations.

Claims

1. A display panel, wherein, include: Sealing adhesive, the sealing adhesive surrounding the display area of ​​the display panel; The spacer layer includes a first support dam and a second support dam, the first support dam surrounding the sealing adhesive, and the second support dam surrounding the display area on the side of the sealing adhesive near the display area; The color resist layer includes a third support dam and a fourth support dam. The orthographic projection of the third support dam on the display surface of the display panel overlaps with the orthographic projection of the first support dam on the display surface, and the orthographic projection of the fourth support dam on the display surface overlaps with the orthographic projection of the second support dam on the display surface.

2. The display panel as claimed in claim 1, wherein, The diaphragm layer also includes a plurality of first support islands between the first support dam and the second support dam, wherein the orthographic projections of the plurality of first support islands on the display surface overlap with the orthographic projections of the third support dam and / or the fourth support dam on the display surface.

3. The display panel as claimed in claim 1, wherein, The spacer layer further includes a plurality of first support islands between the first support dam and the second support dam, and the color resist layer further includes a plurality of second support islands between the third support dam and the fourth support dam. The orthographic projections of the plurality of first support islands on the display surface and the orthographic projections of the plurality of second support islands on the display surface overlap each other.

4. The display panel as described in claim 2 or 3, wherein, The spacer layer also includes a main spacer located in the display area, wherein the height of the first support island perpendicular to the display surface is approximately the same as the height of the main spacer perpendicular to the display surface.

5. The display panel as described in any one of claims 1 to 3, wherein, It also includes an array substrate and a counter substrate placed opposite each other, wherein the array substrate includes an electrically connected common electrode line and a switching electrode, the counter substrate includes a first common electrode, at least a portion of one of the switching electrode and the first common electrode is disposed at the top of the first support dam and / or the top of the second support dam, and the switching electrode is in contact with the first common electrode at the top of the first support dam and / or the top of the second support dam.

6. The display panel as claimed in claim 5, wherein, The sealing adhesive includes a first side near the first support dam and a second side near the second support dam; the adapter electrode contacts the first side and the top of the first support dam, and / or the adapter electrode contacts the second side and the top of the second support dam.

7. The display panel as claimed in claim 5, wherein, The sealing adhesive includes a first side near the first support dam and a second side near the second support dam; the first common electrode contacts the first side and the top of the first support dam, and / or the first common electrode contacts the second side and the top of the second support dam.

8. The display panel as claimed in claim 5, wherein, The sealing adhesive includes a first side near the first support dam and a second side near the second support dam; the adapter electrode and the first common electrode simultaneously contact the first side, and the adapter electrode contacts the top of the first support dam, the first common electrode contacts the top of the third support dam, and / or, the adapter electrode and the first common electrode simultaneously contact the second side, and the adapter electrode contacts the top of the second support dam, the first common electrode contacts the top of the fourth support dam.

9. The display panel according to any one of claims 6 to 8, wherein, The first support dam and the second support dam have trapezoidal cross sections perpendicular to the display surface. The trapezoid includes a first base side that contacts the transfer electrode or the first common electrode, and a second base side that is opposite to the first base side. The base angle of the side where the second base side is located is less than 50°.

10. The display panel according to any one of claims 6 to 8, wherein, The diaphragm layer also includes a plurality of first support islands between the first support dam and the second support dam, and the transfer electrode is hollowed out at the plurality of first support islands.

11. The display panel according to any one of claims 6 to 8, wherein, The septum layer also includes a plurality of first support islands between the first support dam and the second support dam, and the orthographic projection of the transfer electrode on the display surface overlaps with the orthographic projection of the plurality of first support islands on the display surface.

12. The display panel according to any one of claims 6 to 8, wherein, The array substrate includes an insulating layer, which is a planar structure covering the area where the sealing adhesive is located, the area where the third support dam is located, and the area where the fourth support dam is located. The common electrode line is electrically connected to the transfer electrode through at least one via penetrating the insulating layer.

13. The display panel as claimed in claim 12, wherein, There are multiple vias, which are divided into multiple groups arranged in a first direction. Adjacent vias are arranged side by side or staggered in the first direction. The first direction is the arrangement direction of the first support dam and the second support dam.

14. The display panel according to any one of claims 6-8 and 13, wherein, The transfer electrode includes a plurality of block electrodes arranged along a second direction, which is the extension direction of the first support dam.

15. The display panel according to any one of claims 6-8 and 13, wherein, The array substrate includes a gate line, a pixel electrode, and a second common electrode located in the display area. The common electrode line is on the same layer as the gate line, and the transition electrode is on the same layer as the pixel electrode or the second common electrode.

16. The display panel according to any one of claims 1 to 3, wherein, It also includes an array substrate, which comprises mutually insulated pixel electrodes and a common electrode.

17. The display panel as claimed in claim 16, wherein, The sealing adhesive includes a first side near the first support dam and a second side near the second support dam, with the first support dam in contact with the first side and the second support dam in contact with the second side.

18. The display panel as claimed in claim 5, wherein, The array substrate includes the spacer layer and the color resist layer, or the opposing substrate includes the spacer layer and the color resist layer, or the array substrate includes the spacer layer and the opposing substrate includes the color resist layer.

19. The display panel according to any one of claims 1-3, 6-8, 13, 17, and 18, wherein, The spacer layer also includes a main spacer located in the display area, wherein the height of the first support dam perpendicular to the display surface, the height of the second support dam perpendicular to the display surface, and the height of the main spacer perpendicular to the display surface are approximately the same.

20. A display device, wherein, It includes a display panel as described in any one of claims 1 to 19, and a backlight module located on the light-incident side of the display panel.

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