Display panel and display device

Abstract

The present application provides a display panel and display device, relating to the field of display technology. These devices can improve the support force of a double blind hole region of a display panel, while simultaneously ensuring that the support force of the double blind hole region is less than that of the display region, thereby preventing excessive support force in the double blind hole region from causing yellowing of the display in the double blind hole region. Furthermore, sufficient support is provided for the double blind hole region, preventing the display panel from being unable to support itself due to stress, resulting in yellowing of the display in the double blind hole region. The display panel comprises: a display area and a non-display area; the non-display area comprises at least two blind holes and a black area between the blind holes; the black area comprises a first support structure; the display area comprises a second support structure, and the height of the first support structure is no greater than the height of the second support structure.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] At present, liquid crystal display panels TFT-LCD have been widely developed, and under-screen functional devices have been widely used in common mobile phones, notebooks and other screens. By designing blind holes in the display panel, the setting of the under-screen function period is realized, avoiding the reliability problems caused by cutting and digging holes in the display panel.

[0003] In TFT-LCD products, most of them adopt single blind hole design. When double blind hole design is carried out, the non-display area of ​​double blind hole is larger than that of single blind hole design, and there is no TFT film layer and CF film layer in the circular hole area of ​​double blind hole. Because the film layer here is different from the display area, its PS support is different from that of the display area, and there is no support at the circular hole. For double blind hole design, insufficient support of the black area between the double blind holes can easily lead to deformation due to stress. Too much support can easily lead to thicker liquid crystal box around the blind hole and yellowing. Summary of the Invention

[0004] In view of this, the purpose of this application is to propose a method to overcome the above problems or at least partially solve the above problems.

[0005] Based on the above purpose, in a first aspect of the present application, a display panel is provided, comprising: a display area and a non-display area;

[0006] The non-display area includes at least two blind holes and a black area between the blind holes;

[0007] The black area includes a first supporting structure, the display area includes a second supporting structure, and a height of the first supporting structure is not greater than a height of the second supporting structure.

[0008] In some embodiments, the display panel includes a first substrate and a second substrate disposed opposite to each other;

[0009] The first supporting structure includes a first main supporting column arranged on the first substrate, and the second supporting structure includes a second main supporting column arranged on the first substrate. The first main supporting column and the second main supporting column have the same length, and the first electrode layer corresponding to the second substrate of the first main supporting column is not higher than the second electrode layer corresponding to the second substrate of the second main supporting column.

[0010] In some embodiments, in the black area, the first substrate includes a first underlayer, the first underlayer includes a light-shielding layer and a first color filter layer, wherein the light-shielding layer and the first color filter layer are sequentially arranged close to one side of the second substrate, and the first main support column is fixed to a side of the first color filter layer facing the second substrate;

[0011] In the display area, the first substrate includes a second underlayer, the second underlayer includes a second color filter layer, and the second main support column is fixed on a side of the second color filter layer facing the second substrate;

[0012] The first substrate layer and the second substrate layer have the same thickness.

[0013] In some embodiments, the second electrode layer includes at least a gate electrode layer, an active layer, and a source-drain electrode layer sequentially disposed on a side of the second substrate close to the first substrate, and the second main support pillar abuts against the second electrode layer;

[0014] The first electrode layer includes at least one of a gate electrode layer, a source / drain electrode layer and a common electrode layer arranged on the side of the second substrate close to the first substrate, and the first main support column is in contact with the first electrode layer or the extension line of the first main support column points to the first electrode layer.

[0015] In some embodiments, the first electrode layer includes a source-drain electrode layer and a common electrode layer disposed on a side of the second substrate that is sequentially close to the first substrate;

[0016] An extension line of the first main supporting column points to the common electrode layer.

[0017] In some embodiments, the first electrode layer includes a common electrode layer disposed on a side of the second substrate close to the first substrate;

[0018] An extension line of the first main supporting column points to the common electrode layer.

[0019] In some embodiments, the first electrode layer includes a gate electrode layer and a source-drain electrode layer disposed on a side of the second substrate that is sequentially close to the first substrate;

[0020] An extension line of the first main supporting column points to the common electrode layer.

[0021] In some embodiments, the first electrode layer includes a gate electrode layer disposed on a side of the second substrate that is sequentially closer to the first substrate;

[0022] An extension line of the first main supporting column points to the gate electrode layer.

[0023] In some embodiments, the first electrode layer includes a gate electrode layer, an active layer, and a source-drain electrode layer, which are sequentially arranged on a side of the second substrate close to the first substrate;

[0024] The first main support column abuts against the source-drain electrode layer.

[0025] In some embodiments, the invention further comprises a first auxiliary support column arranged in parallel with the first main support column in the black area; and

[0026] a second auxiliary support column provided in parallel with the second main support column in the display area;

[0027] The length of the first spoke support column is shorter than the first main support column, and the length of the second spoke support column is shorter than the second main support column;

[0028] The difference in length between the first main support column and the first spoke support column is the same as the difference in length between the second main support column and the second spoke support column.

[0029] In some embodiments, the first support structure further includes an auxiliary support column, wherein the auxiliary support column is disposed between the first main support column and the first auxiliary support column;

[0030] The auxiliary support column has the same length as the first main support column, and the auxiliary support column corresponds to the third electrode layer of the second substrate, including a gate electrode layer and a source-drain electrode layer arranged on a side of the second substrate close to the first substrate in sequence;

[0031] An extension line of the auxiliary support column points to the source-drain electrode layer.

[0032] In some embodiments, the first main support column, the second main support column, and the auxiliary support column are all elastic, and the elastic range of the first main support column is the length difference between the first main support column and the first auxiliary support column.

[0033] In some embodiments, the density of the second main support columns is configured to be greater than the density of the first main support columns.

[0034] In some embodiments, the non-display area further includes an annular area surrounding the blind hole, and in the annular area, a first area, a second area, and a third area are sequentially provided away from the blind hole;

[0035] In the first area, a third main support column is provided, the first substrate includes a light shielding layer close to the second substrate, the third main support column is fixed to the side of the light shielding layer facing the second substrate, and the fourth electrode layer of the third main support column corresponding to the second substrate is lower than the first electrode layer of the second main support column on the second substrate;

[0036] The length of the third main support column is the same as that of the first main support column and the third main support column is elastic.

[0037] In some embodiments, a third auxiliary support column is provided in the second region, the first substrate includes a light shielding layer and a color filter film sequentially located close to a side of the second substrate, the third auxiliary support column is fixed to a side of the color filter film close to the second substrate, and the third auxiliary support column corresponding to the fifth electrode layer of the second substrate is lower than the second main support column on the first electrode layer of the second substrate;

[0038] The color filter film is a blue filter film.

[0039] In some embodiments, a fourth auxiliary support column is provided in the third area, and the fourth auxiliary support column is arranged on the same layer as the first auxiliary support column. The fourth auxiliary support column corresponds to the sixth electrode layer of the second substrate and is lower than the second main support column on the second electrode layer of the second substrate.

[0040] In a second aspect of the present application, a display device is provided, comprising:

[0041] The display panel as described in the first aspect.

[0042] As can be seen from the above description, the display panel and display device provided by the present application provide a second support structure in the display area and a first support structure in the black area. The height of the first support structure is not greater than the height of the second support structure, and the first support structure and the second support structure cooperate with each other to ensure that the black area provides sufficient support for the box thickness formed by the first substrate and the second substrate, while ensuring that the box thickness formed by the black area for the first substrate and the second substrate is not greater than the box thickness formed by the display area for the first substrate and the second substrate. This solves the problem of yellowing around the double blind holes caused by the box thickness formed by the black area for the first substrate and the second substrate being greater than the box thickness formed by the display area for the first substrate and the second substrate, and also provides sufficient support for the black area. When the display panel is subjected to external force, the support force provided by the first support structure in the black area prevents the display panel from warping, and also avoids the problem of yellowing around the double blind holes. At the same time, the black area is fully utilized.

[0043] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are merely embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0045] Figure 1 A schematic structural diagram of a display panel provided in an embodiment of the present application;

[0046] Figure 2 A schematic diagram of a partial structure of a display panel provided in an embodiment of the present application;

[0047] Figure 3 A schematic cross-sectional view of a display panel provided in an embodiment of the present application;

[0048] Figure 4 A schematic cross-sectional view of a first display area and a second non-display area provided in an embodiment of the present application;

[0049] Figure 5 A schematic cross-sectional view of a second display area and a second non-display area provided in an embodiment of the present application;

[0050] Figure 6 A schematic cross-sectional view of a third display area and a second non-display area provided in an embodiment of the present application;

[0051] Figure 7 A schematic cross-sectional view of a fourth display area and a second non-display area provided in an embodiment of the present application;

[0052] Figure 8 This is a cross-sectional schematic diagram of the fifth display area and the second non-display area provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0054] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] The present application provides a display panel in which a double blind via is designed in an a-Si TFT-LCD product. Compared with a single blind via design, the double blind via has a larger non-display area. However, the circular hole area (first non-display area) in the double blind via does not have a TFT film layer and a CF film layer like the display area. As a result, the supporting force of the circular hole area in the double blind via is different from that of the display area. The lack of support at the circular hole results in insufficient supporting force in the entire blind hole area, which causes deformation of the display panel and yellowing. When PLO / OCA is used to dig the via, the PLO / OCA expands after being placed, squeezing and deforming the display panel, resulting in larger gaps around the blind via, which also causes yellowing. Therefore, it is necessary to design appropriate support in the blind hole area.

[0056] On this basis, due to the black area (second non-display area) generated in the middle by the double blind hole design, the support solution relying on the single blind hole design is not applicable to the double blind hole design. Therefore, it is necessary to focus on the support design of the black area and design reasonable support in the blind hole area. While designing reasonable support, it is also necessary to avoid the support force in the blind hole area being too large, thereby failing to ensure a relatively uniform box thickness, resulting in yellowing around the blind hole. Similarly, there must be no lack of support force, so that when the display panel is subjected to external force, the support force in the blind hole area is insufficient, causing the glass of the display panel to deform and warp, resulting in yellowing around the blind hole.

[0057] At the same time, when considering the above-mentioned reasonable support, the design of the support does not require changing the existing process of the display panel, thereby reducing the yellowing problem of the blind hole and lowering the production cost.

[0058] Based on this, a first aspect of an embodiment of the present application provides a display panel. Figure 1 A schematic structural diagram of a display panel provided in an embodiment of the present application. Figure 2This is a partial structural diagram of a display panel provided in an embodiment of the present application. Figure 1 、 Figure 2 As shown, the display panel includes a display area 200 and a non-display area 100, and the non-display area 100 includes at least two blind holes 201 and a black area 202 between the blind holes 201. It can be understood that the positions corresponding to the blind holes 201 can be used to transmit light to the functional devices under the screen or form a light-transmitting area for the functional devices. Compared with the position corresponding to the single blind hole 201 used to set the front under-screen camera, the functional devices set at the positions corresponding to the double blind holes 201 of the present application include the front camera, infrared lens, distance sensor, and floodlight sensing element set under the screen.

[0059] refer to Figure 3 The black area 202 includes a first supporting structure, and the display area 200 includes a second supporting structure. It should be noted that when designing the double blind hole 201, it is necessary to focus on the support design of the black area 202. If the supporting force of the black area 202 is greater than the supporting force of the display area 200, the box thickness of the display panel will be inconsistent, which will cause yellowing around the blind hole 201. However, if the black area 202 is not supported, when the display panel is squeezed by external force, the display panel will deform, and yellowing will also occur. Therefore, when designing the support for the black area 202, the height of the first supporting structure is not greater than that of the second supporting structure. In other words, the first supporting structure can ensure sufficient supporting force, but at the same time will not affect the box thickness of the display panel.

[0060] In some embodiments, the display panel includes a first substrate 300 and a second substrate 400 arranged opposite to each other. It can be understood that in the display panel of the present application, the first substrate 300 can be a color film substrate (CF) and the second substrate 400 can be an array substrate (TFT).

[0061] It should be noted that when the height of the first support structure is greater than the height of the second support structure, the black area 202 of the first substrate 300 is higher than the display area 200 of the first substrate 300, and the areas surrounding the blind holes 201 are prone to yellowing. However, when the height of the first support structure is not greater than the height of the second support structure, while ensuring the thickness of the display panel, the support force provided by the first support structure will not cause the first substrate 300 to deform too much when subjected to external forces, thereby preventing yellowing. The first support structure includes a first main support column 500 disposed on the first substrate, and the second support structure includes a second main support column 600 disposed on the first substrate. The first main support column 500 and the second main support column 600 are of the same length, and the first column supports a first electrode layer 700 corresponding to the second substrate 400 no higher than the second electrode layer 800 of the second main support column 600 corresponding to the second substrate 400. It is understood that the first main support column 500 and the second main support column 600 are arranged on the first substrate 300 through the same process. When the first main support column 500 and the second main support column 600 have the same length, in order to make the box thickness of the black area 202 no greater than the box thickness of the display area 200, thereby avoiding yellowing, the supporting force between the first main support column 500 and the second substrate 400 is smaller than the supporting force between the second main support column and the second substrate 400. When the second electrode layer 800 is higher than the first electrode layer 700 and the second main support column plays a supporting role, the first main support column has not yet fully played a supporting role or the supporting force is less than the supporting force provided by the second main support column. Of course, in this field, the first electrode layer 700 and the second electrode layer 800 can respectively serve as the first and second supporting positions of the first main support column 500 and the second main support column 600 on the second substrate 400.

[0062] In some embodiments, reference Figure 3In the black area 202, the first substrate 300 includes a first underlayer, which includes a light-shielding layer 301 and a first color filter layer 302. The light-shielding layer 301 and the first color filter layer 302 are sequentially arranged on the side of the second substrate 400, and the first main support column 500 is fixed to the side of the first color filter layer 302 facing the second substrate 400. It is understood that the black area 202 of the display panel does not need to emit light or display corresponding content. Therefore, the light-shielding layer 301 is arranged on the first substrate 300, and the first color filter layer 302 is also arranged on the side of the light-shielding layer 301 near the second substrate 400. The first substrate 300 is directly formed with the first color filter layer 302 using the same process. Similarly, the first main support column 500 provided on the first color filter layer 302 can protect the light-shielding layer 301 from external pressure and damage. In the display area 200 , the first substrate 300 includes a second substrate layer, the second substrate layer includes a second color filter layer 303 , and the second main support column 600 is fixed on the side of the second color filter layer 303 facing the second substrate 400 ; the first substrate layer and the second substrate layer have the same thickness. That is to say, when the first color filter layer 302 and the second color filter layer 303 are manufactured on the first substrate 300, the thickness of the second color filter layer 303 must be greater than the thickness of the first color filter layer 302, while the thickness of the first substrate layer and the second substrate layer is the same, which can ensure that the first main support column 500 and the second main support column 600 are on the same plane at one end away from the first substrate 300, thereby preventing the distance between the first main support column 500 and the second substrate 400 from being less than the distance between the second main support column 600 and the second substrate 400. If the distance between the first main support column 500 and the second substrate 400 is too small, it is possible that the first main support column 500 and the first electrode layer 700 will conflict before the second main support column 600 and the second electrode layer 800 will conflict. Similarly, it is possible that the box thickness of the black area 202 will be greater than the box thickness of the display area 200, which will also cause the periphery of the blind hole 201 to turn yellow.

[0063] In some embodiments, as Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8As shown, the second electrode layer 800 includes at least a gate electrode layer 801 , an active layer 802 and a source-drain electrode layer 803 , which are sequentially arranged on the side of the second substrate 400 close to the first substrate 300 , and the second main support column abuts against the second electrode layer 800 . It can be understood that in the production process of the display panel, the production of the second substrate 400 not only includes the above-mentioned gate electrode layer 801, active layer 802 and source-drain electrode layer 803, but also includes an insulating layer, etc., but relative to the above-mentioned gate electrode layer 801, active layer 802 and source-drain electrode layer 803, other metal layers arranged on the second substrate 400 will be produced in a whole layer, that is, all other metal layers will be directly arranged in a whole layer on the side of the second substrate 400 close to the first substrate 300, and for the non-pixel opening area corresponding to the first substrate 300 and the second substrate 400, there is no need to display the gate electrode layer 801, active layer 802 and source-drain electrode layer 803, that is, in the display area 200, the second main support column 600 is arranged to abut the second electrode layer 800, which can not only play a supporting role, but also will not affect the normal display of the display panel.

[0064] The first electrode layer 700 includes at least one of a gate electrode layer 801, a source / drain electrode layer 803, and a common electrode layer 701, disposed on the side of the second substrate 400 near the first substrate 300. The first main support pillar abuts the first electrode layer 700, or an extension of the first main support pillar points toward the first electrode layer 700. It is understood that in the black area 202, the display panel does not need to perform a corresponding display. Therefore, when the first main support pillars 500 and the second main support pillars 600 are of the same length, in order to ensure the cell thickness and to ensure that the supporting force of the black area 202 is less than that of the display area 200, and to ensure that the black area 202 also has sufficient support when subjected to external forces, the first electrode layer 700 of the first main support pillars in the black area 202 cannot be higher than the second electrode layer 800 of the display area 200, thereby ensuring that the supporting force of the black area 202 is no greater than that of the display area 200, thereby preventing yellowing around the blind hole 201. It can also be understood that the second main support column 600 of the display area 200 is in contact with the second electrode layer 800, while the first main support column of the black area 202 may or may not be in contact with the first electrode layer 700. Here, the first electrode layer 700 and the second electrode layer 800 are equivalent to support points.

[0065] In some embodiments, illustratively, reference Figure 4The first electrode layer 700 includes a source / drain electrode layer 803 and a common electrode layer 701, which are arranged on the side of the second substrate 400 adjacent to the first substrate 300. The extension line of the first main support column points to the common electrode layer 701. In the display area 200, the second main support column 600 abuts the source / drain electrode layer 803. In the black area 202, the extension line of the first main support column 500 points to the common electrode layer 701. Compared with the display area 200, the source / drain electrode layer 803 and the active layer 802 are missing. In other words, although the common electrode layer 701 is added, the height of the first electrode layer 700 is still lower than the height of the second electrode layer 800 in the display area 200, preventing the yellowing problem caused by the support of the black area 202 being higher than the display area 200. At the same time, when the black area 202 is squeezed by external force, the first main support column 500 supports the black area 202, avoiding the yellowing problem around the blind hole 201 caused by the bending of the first substrate 300.

[0066] In some embodiments, illustratively, reference Figure 5 The first electrode layer 700 includes a common electrode layer 701 disposed on the side of the second substrate 400 close to the first substrate 300; the extension line of the first main support column points to the common electrode layer 701. Similar to the above embodiment, the first main support column 500 also does not contact the first electrode layer 700. The difference is that the first electrode layer 700 only includes the common electrode layer 701 disposed on the second substrate 400. This also prevents the yellowing problem caused by the black area 202 being supported higher than the display area 200. At the same time, when the black area 202 is squeezed by external force, the first main support column 500 supports the black area 202, avoiding the yellowing problem around the blind hole 201 caused by the bending of the first substrate 300.

[0067] In some embodiments, illustratively, reference Figure 6 The first electrode layer 700 includes a gate electrode layer 801 and a source-drain electrode layer 803 disposed on the second substrate 400, which are sequentially close to the first substrate 300. The extension line of the first main support column points to the common electrode layer 701. Similar to the above embodiment, the extension line of the first main support column 500 does not contact the first electrode layer 700. The difference is that the first electrode layer 700 includes a gate electrode layer 801 and a source-drain electrode layer 803 disposed on the second substrate 400. The first electrode layer 700 is lower than the second electrode layer 800, which also prevents the yellowing problem caused by the support of the black area 202 being higher than the display area 200. At the same time, when the black area 202 is squeezed by external force, the first main support column 500 supports the black area 202, avoiding the yellowing problem around the blind hole 201 caused by the bending of the first substrate 300.

[0068] In some embodiments, illustratively, reference Figure 7The first electrode layer 700 includes a gate electrode layer 801 disposed on the side of the second substrate 400 that is adjacent to the first substrate 300; the extension line of the first main support column points to the gate electrode layer 801. Similar to the above embodiment, the extension line of the first main support column 500 does not contact the first electrode layer 700. The difference is that the first electrode layer 700 includes a gate electrode layer 801 disposed on the second substrate 400 and lacks the source-drain electrode layer 803. The first electrode layer 700 is lower than the second electrode layer 800, which also prevents the yellowing problem caused by the support of the black area 202 being higher than the display area 200. At the same time, when the black area 202 is squeezed by external force, the first main support column 500 supports the black area 202, avoiding the yellowing problem around the blind hole 201 caused by the bending of the first substrate 300.

[0069] In some embodiments, illustratively, reference Figure 8 The first electrode layer 700 includes a gate electrode layer 801, an active layer 802, and a source-drain electrode layer 803, which are sequentially arranged on the side of the second substrate 400 close to the first substrate 300; the first main support column abuts the source-drain electrode layer 803. The difference from the above embodiment is that the first main support column 500 contacts the first electrode layer 700, and the height of the first electrode layer 700 is the same as that of the second electrode layer 800. This can also ensure that the supporting force of the black area 202 is no greater than that of the display area 200, and the thickness of the black area 202 is no higher than that of the display area 200, thus preventing the yellowing problem caused by the support of the black area 202 being higher than that of the display area 200. At the same time, when the black area 202 is squeezed by external force, the first main support column 500 supports the black area 202, thereby avoiding the yellowing problem around the blind hole 201 caused by the bending of the first substrate 300.

[0070] In some embodiments, for example, the first electrode layer 700 can also be directly disposed on the second substrate 400, excluding any of the above-mentioned gate electrode layer 801, active layer 802, source-drain electrode layer 803, and common electrode layer 701. In other words, the first electrode layer 700 is the surface of the second substrate 400, and the first main support column can also support the black area 202. The above design of the first main support column relative to the first electrode layer 700 is only an embodiment of the support design of the black area 202 shown in this application. The first electrode layer 700 can also be other metal layers disposed on the second substrate 400. As long as the first electrode layer 700 is not higher than the second electrode layer 800 and can achieve the same technical effect as the above-mentioned embodiment, it can be used as a replacement for the first electrode layer 700 in this application. The embodiments of this application are not specifically limited.

[0071] Further, refer to Figures 4 to 8, also includes a first auxiliary support column 501 arranged parallel to the first main support column 500 in the black area 202; and a second auxiliary support column 502 arranged parallel to the second main support column 600 in the display area 200; the length of the first radial support column 501 is smaller than the first main support column 500, and the length of the second radial support column 502 is smaller than the second main support column 600. It can be understood that the first auxiliary support column 501 and the second auxiliary support column 502 both play the role of auxiliary support, and the parallel arrangement of the first auxiliary support column 501 and the first main support column 500 can be understood as the first auxiliary support column 501 and the first main support column 500 are also arranged on the first substrate 300, and the electrode layer (station point) of the first auxiliary support column 501 pointing to the second substrate 400 can also be the same height as the first electrode layer 700 of the first main support column 500, and of course it can also be slightly lower than the first electrode layer 700. For example, the first electrode layer 700 includes the gate electrode layer 801, then the station point of the first auxiliary support column 503 pointing to the second substrate 400 includes the gate electrode layer 801. The second auxiliary support column 502 and the second main support column 600 are arranged in parallel, which can be understood as the second auxiliary support column 502 and the second main support column 600 are also arranged on the first substrate 300, and the electrode layer (station point) of the second auxiliary support column 502 pointing to the second substrate 400 can also be at the same height as the second electrode layer 800 of the second main support column 600.

[0072] The difference in length between the first main support column 500 and the first radial support column 501 is the same as the difference in length between the second main support column 502 and the second radial support column 600. The first auxiliary support column 501 and the second auxiliary support column 502 provide auxiliary support. That is, when the support force provided by the first main support column 500 and the second main support column 600 is insufficient to withstand the external force exerted on the display panel, the first auxiliary support column 501 and the second auxiliary support column 502 also support the display panel to prevent damage to the display panel. However, due to the length difference between the first auxiliary support column 501 and the second auxiliary support column 501 and the first main support column 500 and the second main support column 600, respectively, the auxiliary support function provided by the first auxiliary support column 501 and the second auxiliary support column 502 is very limited. Based on this, it can be understood that in order to protect the first substrate 300 and the second substrate 400, the first main support column 500 and the second main support column 600 are elastic.

[0073] In some embodiments, both the first main support column 500 and the second main support column 600 are elastic. The elastic range of the first main support column 500 is the length difference between the first main support column 500 and the first auxiliary support column 501. When the display panel is subjected to external force, the first main support column 500 and the second main support column 600 primarily support the display panel. However, if the external force is large and the first main support column 500 and the second main support column 600 are not elastic, the first and second substrate layers of the first substrate 300 are likely to be damaged, or the first substrate 300 may also be damaged. The elasticity of the first main support column 500 and the second main support column 600 is used to support the display panel. If the external force is large, the first auxiliary support column 501 and the second auxiliary support column 502 provide support to prevent the display panel from directly breaking due to insufficient support force.

[0074] Further, refer to Figure 8 The first support structure further includes an auxiliary support column 503, which is disposed between the first main support column 500 and the first auxiliary support column 501. The auxiliary support column 503 has the same length as the first main support column 500. The auxiliary support column 503 corresponds to the third electrode layer of the second substrate 400, including a gate electrode layer 801 and a source-drain electrode layer 803 disposed on the side of the second substrate 400 adjacent to the first substrate 300. The extension line of the auxiliary support column 503 points to the source-drain electrode layer 803. In the above embodiment, in addition to providing dual support of the first main support column 500 and the first auxiliary support column 501, the black area 202 can also be designed with a triple support solution, in which the auxiliary support column 503 is disposed between the first main support column 500 and the first auxiliary support column 501, forming a triple support solution. When the black area 202 of the display panel is subjected to a large external force, the auxiliary support column 503 also plays a supporting role, thereby preventing the display panel from bending and causing yellowing around the blind hole 201.

[0075] Of course, it should be noted that when performing a three-support design, the height of the standing point of the first auxiliary support column 501 and the standing point of the auxiliary support column 503 are the same, and in the above embodiment, the standing point of the auxiliary support column 503 and the standing point of the first auxiliary support column 501 include the gate electrode layer 801 and the source-drain electrode layer 803, and can also be other metal layers arranged on the second substrate 400. As long as the standing point of the auxiliary support column 503 and the standing point of the first auxiliary support column 501 are not higher than the first electrode layer 700, no limitation is made here.

[0076] In some embodiments, the auxiliary support column 503 is elastic. While the above-mentioned auxiliary support column 503 also plays a supporting role, the supporting role of the auxiliary support column 503 is the same as that of the first main support column 500. Similarly, only when the auxiliary support column 503 is elastic, it partially replaces the supporting role of the first main support column 500 and the first auxiliary support column 501.

[0077] In some embodiments, the density of the second main support columns 600 is configured to be greater than the density of the first main support columns 500. It is understandable that even if the heights of the first electrode layer 700 and the second electrode layer 800 are the same, if the density of the first main support columns 500 is less than the density of the second main support columns 600, then the supporting force provided by the first main support columns 500 is also less than the supporting force provided by the second main support columns 600, ensuring that the box thickness of the black area 202 does not exceed the box thickness of the display area 200, thereby preventing yellowing around the double blind holes 201.

[0078] In the display panel provided by the embodiment of the present application, the density of the first main support columns 500 is preferably one-sixth of the density of the second main support columns 600 .

[0079] It should be noted that the first main support column 500 and the second main support column 600 can be set on the first substrate 300 through the same process. It is only necessary to change the position of the first main support column 500 on the first substrate 300 so that the first main support column 500 corresponds to the first electrode layer 700, without adding a mask.

[0080] In some embodiments, as Figure 2 、 Figure 3 As shown, the non-display area 100 also includes an annular region 203 surrounding the blind hole 201. Within the annular region 203, a first region 204, a second region 205, and a third region 206 are sequentially arranged away from the blind hole 201. That is, the first region 204, the second region 205, and the third region 206 are sequentially arranged around the double blind hole 201 from near to far. Similarly, while providing support for the display area 200 and the black region 202, support is also required in the annular region 203 surrounding the blind hole 201. Similarly, the support force provided in the first region 204, the second region 205, and the third region 206 cannot be greater than the support force of the second support structure of the display area 200. Otherwise, the support force provided by the black region 202 will be too strong, and the support force provided by the first region 204, the second region 205, and the third region 206 will directly cause yellowing around the blind hole 201. Furthermore, corresponding support is also provided in the first region 204, the second region 205, and the third region 206 to cope with external forces acting on the display panel.

[0081] In the first area 204, a third main support column 900 is provided. The first substrate 300 includes a light-shielding layer 301 close to the side of the second substrate 400. The third main support column 900 is fixed on the side of the light-shielding layer 301 facing the second substrate 400, and the fourth electrode layer of the third main support column 900 corresponding to the second substrate 400 is lower than the first electrode layer 700 of the second substrate 400 of the second main support column 600; the length of the third main support column 900 is the same as that of the first main support column 500. It is understood that the first color filter layer 302 is removed from the first substrate 300 corresponding to the first region 204, and the third main support column 900 is fixed to the light shielding layer 301 of the first substrate 300. When the third main support column 900 and the first main support column 500 are the same length, the third support column 900 is located lower than the first electrode layer 700. In theory, the supporting function of the third main support column 900 is limited. However, it still provides corresponding support when the first region 204 of the display panel is subjected to external forces. The elasticity of the third main support column 900 prevents damage to the light shielding layer 301. It is also understood that the third main support column 900 is also elastic.

[0082] In some embodiments, a third auxiliary support column 504 is provided in the second area 205, and the first substrate 300 includes a light-shielding layer 301 and a color filter film 304, which are sequentially close to the side of the second substrate 400. The third auxiliary support column 504 is fixed on the side of the color filter film 304 close to the second substrate 400, and the third auxiliary support column 504 corresponds to the fifth electrode layer of the second substrate 400, which is lower than the second main support column 600 on the first electrode layer 700 of the second substrate 400; the color filter film 304 is a blue filter film.

[0083] It can be understood that the length of the third auxiliary support column 504 is the same as that of the first auxiliary support column 501 and the second auxiliary support column 502. At the same time, the fifth electrode layer is lower than the first electrode layer 700, which is equivalent to the third auxiliary support column 504 also playing an auxiliary support role in the second area 205. When the external force applied to the second area 205 is large, the third auxiliary support column 504 may scratch the light-shielding layer 301 of the first substrate 300, thereby causing light leakage. By utilizing the long-wave nature of the blue light wavelength, the blue light leakage phenomenon is not easy to form a poor display and will not affect the display panel where the second area 205 is located.

[0084] In some embodiments, fourth auxiliary support pillars 505 are provided in the third region 206. These fourth auxiliary support pillars 505 are arranged in the same layer as the first auxiliary support pillars 501. The fourth auxiliary support pillars 505 correspond to the sixth electrode layer of the second substrate 400 and are positioned lower than the second main support pillars 600 in the second electrode layer 800 of the second substrate 400. Similar to the second region 205, the third region 206 is the area closest to the display area 200 or the black region 202 and similarly needs to provide auxiliary support for the display area 200 and the black region 202. By providing the fourth auxiliary support pillars 505 in the same layer as the first auxiliary support pillars 501, they perform the same supporting function as the first auxiliary support pillars 501. The sixth electrode layer being lower than the second electrode layer 800 also prevents the thickness of the display panel in the third region 206 from exceeding that of the display area 200, thus preventing yellowing.

[0085] It can be understood that an optical adhesive layer OC (not shown in the figure) is also provided between the above-mentioned third main support column 900, the third auxiliary support column 504, the fourth auxiliary support column 505 and the first substrate 300. The optical adhesive layer can act as a flattening film layer and protect the light-shielding layer 301 and the first color filter layer 302. Similarly, a liquid crystal layer is also provided between the first substrate 300 and the second substrate 400.

[0086] According to a second aspect of an embodiment of the present application, a display device is provided. The display device includes the display panel as described in the first aspect. The display device may be a smart phone, a television, a laptop computer, a tablet computer, a monitor, or other display.

[0087] The display device provided in the embodiment of the present application utilizes the display panel described in the first aspect. The display panel cooperates with the first supporting structure and the second supporting structure to ensure that the support height of the black area 202 is not higher than the support height of the display area 200 while ensuring the box thickness of the display panel, thereby avoiding the problem of yellowing around the double blind holes 201. At the same time, with the support of the second supporting structure, when the black area 202 of the display panel is squeezed by external force, the second supporting structure can also provide supporting force, thereby avoiding the problem of yellowing around the blind holes 201 caused by deformation of the display panel.

[0088] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in conjunction with the specific embodiments of the present application, based on the foregoing description, many replacements, modifications and variations of these embodiments will be obvious to ordinary technicians in this field.

[0089] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this application.

Claims

1. A display panel, characterized in that: include: Display area and non-display area; The non-display area includes at least two blind holes and a black area between the blind holes; The black area includes a first supporting structure, the display area includes a second supporting structure, and the height of the first supporting structure is not greater than the height of the second supporting structure; The display panel includes a first substrate and a second substrate arranged opposite to each other; The first supporting structure includes a first main supporting column provided on the first substrate, and the second supporting structure includes a second main supporting column provided on the first substrate, the first main supporting column and the second main supporting column having the same length, and the first electrode layer corresponding to the second substrate of the first main supporting column is not higher than the second electrode layer corresponding to the second substrate of the second main supporting column; The second electrode layer at least includes a gate electrode layer, an active layer, and a source-drain electrode layer sequentially arranged on a side of the second substrate close to the first substrate, and the second main supporting column abuts against the second electrode layer; The first electrode layer includes at least one of a gate electrode layer, a source / drain electrode layer and a common electrode layer arranged on the side of the second substrate close to the first substrate, and the first main support column is in contact with the first electrode layer or the extension line of the first main support column points to the first electrode layer.

2. The display panel according to claim 1, wherein: In the black area, the first substrate includes a first underlayer, the first underlayer includes a light-shielding layer and a first color filter layer, wherein the light-shielding layer and the first color filter layer are sequentially arranged close to one side of the second substrate, and the first main support column is fixed to the side of the first color filter layer facing the second substrate; In the display area, the first substrate includes a second underlayer, the second underlayer includes a second color filter layer, and the second main support column is fixed on a side of the second color filter layer facing the second substrate; The first substrate layer and the second substrate layer have the same thickness.

3. The display panel according to claim 1, wherein: The first electrode layer includes a source-drain electrode layer and a common electrode layer which are sequentially arranged on a side of the second substrate close to the first substrate; An extension line of the first main supporting column points to the common electrode layer.

4. The display panel according to claim 1, wherein: The first electrode layer includes a common electrode layer provided on a side of the second substrate close to the first substrate; An extension line of the first main supporting column points to the common electrode layer.

5. The display panel according to claim 1, wherein: The first electrode layer includes a gate electrode layer and a source-drain electrode layer which are arranged on a side of the second substrate that is sequentially close to the first substrate; An extension line of the first main supporting column points to the common electrode layer.

6. The display panel according to claim 1, wherein: The first electrode layer includes a gate electrode layer provided on a side of the second substrate that is sequentially close to the first substrate; An extension line of the first main supporting column points to the gate electrode layer.

7. The display panel according to claim 1, wherein: The first electrode layer includes a gate electrode layer, an active layer, and a source-drain electrode layer, which are sequentially arranged on a side of the second substrate close to the first substrate; The first main support column abuts against the source-drain electrode layer.

8. The display panel according to claim 1, wherein: Also included is a first auxiliary support column arranged in parallel with the first main support column in the black area; and a second auxiliary support column provided in parallel with the second main support column in the display area; The length of the first auxiliary support column is shorter than the first main support column, and the length of the second auxiliary support column is shorter than the second main support column; The difference in length between the first main support column and the first auxiliary support column is the same as the difference in length between the second main support column and the second auxiliary support column.

9. The display panel according to claim 8, wherein: The first supporting structure further includes an auxiliary supporting column, wherein the auxiliary supporting column is arranged between the first main supporting column and the first auxiliary supporting column; The auxiliary support column has the same length as the first main support column, and the auxiliary support column corresponds to the third electrode layer of the second substrate, including a gate electrode layer and a source-drain electrode layer arranged on a side of the second substrate close to the first substrate in sequence; An extension line of the auxiliary support column points to the source-drain electrode layer.

10. The display panel according to claim 9, wherein: The first main support column, the second main support column and the auxiliary support column are all elastic, and the elastic range of the first main support column is the length difference between the first main support column and the first auxiliary support column.

11. The display panel according to claim 10, wherein: The density of the second main support columns is configured to be greater than the density of the first main support columns.

12. The display panel according to claim 8, wherein The non-display area further includes an annular area surrounding the blind hole, wherein a first area, a second area and a third area are sequentially provided in the annular area away from the blind hole; In the first area, a third main support column is provided, the first substrate includes a light shielding layer close to the second substrate, the third main support column is fixed to the side of the light shielding layer facing the second substrate, and the fourth electrode layer of the third main support column corresponding to the second substrate is lower than the first electrode layer of the second main support column on the second substrate; The length of the third main support column is the same as that of the first main support column and the third main support column is elastic.

13. The display panel according to claim 12, wherein: In the second region, a third auxiliary support column is provided. The first substrate includes a light shielding layer and a color filter film, which are sequentially located near a side of the second substrate. The third auxiliary support column is fixed to a side of the color filter film near the second substrate. The third auxiliary support column corresponds to a fifth electrode layer of the second substrate and is lower than the first electrode layer of the second main support column on the second substrate. The color filter film is a blue filter film.

14. The display panel according to claim 13, wherein: In the third area, a fourth auxiliary support column is provided. The fourth auxiliary support column is arranged in the same layer as the first auxiliary support column. The sixth electrode layer of the fourth auxiliary support column corresponding to the second substrate is lower than the second main support column on the second electrode layer of the second substrate.

15. A display device, characterized in that: include: The display panel according to any one of claims 1 to 14.

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