Liquid crystal display panel and display device

Abstract

The invention provides a liquid crystal display panel and a display device, and the liquid crystal display panel is provided with a display area; the liquid crystal display panel comprises a first substrate and a second substrate; the supporting columns are arranged between the first substrate and the second substrate, and at least part of the supporting columns abut against the first substrate and / or the second substrate; the first adhesive layer at least covers the display area; wherein the areas where the supporting columns and / or the first adhesive layer are located comprise at least two areas with different elastic moduli. The yellowing and bluing phenomena of the edge of the display area of the liquid crystal display panel can be reduced, and the display effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display, in particular to a liquid crystal display panel and a display device. BACKGROUND

[0002] A liquid crystal display panel (LCD) is a technology that uses the photoelectric properties of liquid crystal materials to display images. The liquid crystal display panel controls the transmission of light by adjusting the arrangement of liquid crystal molecules, thereby forming an image. Liquid crystal displays are widely used in televisions, computer monitors, mobile phones and other devices due to their thinness, energy saving and high resolution.

[0003] However, in the related art, when the temperature of the liquid crystal display panel changes to cause interaction forces between the components, or when the liquid crystal display panel is subjected to external forces, the edges of the display area of the liquid crystal display panel may appear yellow or blue, affecting the display effect.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0005] Therefore, the present application provides a liquid crystal display panel and a display device to at least solve the technical problem of yellowing or bluing at the edges of the display area of the liquid crystal display panel in the prior art.

[0006] The present application provides a liquid crystal display panel, the liquid crystal display panel having a display area; the liquid crystal display panel comprising: a first substrate and a second substrate; a plurality of support columns, the support columns being arranged between the first substrate and the second substrate, at least part of the support columns abutting the first substrate and / or the second substrate; a first adhesive layer, the first adhesive layer covering at least the display area; wherein the area where the plurality of support columns and / or the first adhesive layer are located comprises at least two areas with different elastic moduli.

[0007] Based on the same inventive concept, the present application also provides a display device comprising the above-mentioned liquid crystal display panel.

[0008] Compared with the prior art, the liquid crystal display panel and the display device provided by the present application at least achieve the following beneficial effects: The present invention provides a liquid crystal display panel and a display device, wherein the liquid crystal display panel has a display area; the liquid crystal display panel includes: a first substrate and a second substrate; a plurality of support pillars disposed between the first substrate and the second substrate, at least a portion of the support pillars abutting against the first substrate and / or the second substrate; a first adhesive layer covering at least the display area; wherein the area where the plurality of support pillars and / or the first adhesive layer is located includes areas with at least two different elastic moduli. The present invention, by providing that the area where the plurality of support pillars and / or the first adhesive layer is located includes areas with at least two different elastic moduli, at least partially strengthens the strength of the area where the plurality of support pillars and / or the first adhesive layer is located, thereby at least partially strengthening the strength of the liquid crystal display panel. This provides stronger support for the edge of the display area of ​​the liquid crystal display panel when temperature changes cause interaction forces between components, or when the liquid crystal display panel is subjected to external forces, preventing damage to the edge of the display area, reducing yellowing and bluing phenomena at the edge of the display area, and improving the display effect. Attached Figure Description

[0009] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0010] Figure 1 This is a schematic diagram of the cross-sectional structure of a liquid crystal display panel provided in an embodiment of the present invention.

[0011] Figure 2 This is a cross-sectional structural schematic diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0012] Figure 3 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0013] Figure 4 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0014] Figure 5 yes Figure 4 A top view of the structure of the liquid crystal display panel.

[0015] Figure 6 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0016] Figure 7 yes Figure 6 A top view of the structure of the liquid crystal display panel.

[0017] Figure 8 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0018] Figure 9 yes Figure 8 A top view of the structure of the liquid crystal display panel.

[0019] Figure 10 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0020] Figure 11 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0021] Figure 12 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0022] Figure 13 yes Figure 12 A top view of the structure of the liquid crystal display panel.

[0023] Figure 14 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention.

[0024] Figure label: Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0026] The use of terms such as "first," "second," and similar terms in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. Furthermore, in the description of this invention, terms such as "upper," "lower," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention.

[0027] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features in different embodiments can be combined with each other.

[0028] Figure 1This is a schematic diagram of the cross-sectional structure of a liquid crystal display panel provided in an embodiment of the present invention. Figure 2 This is a cross-sectional structural schematic diagram of another liquid crystal display panel provided in an embodiment of the present invention. Figure 3 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0029] like Figures 1 to 3 As shown, an embodiment of the present invention provides a liquid crystal display panel 100, which has a display area AA. The liquid crystal display panel 100 includes: a first substrate 110, a second substrate 120, a plurality of support pillars 130, and a first adhesive layer 140.

[0030] Specifically, the first substrate 110 may include a thin-film transistor layer. The thin-film transistor layer includes a driving circuit for adjusting the alignment of liquid crystal molecules to control light transmission, thereby forming an image display on the liquid crystal display panel 100. The space between the first substrate 110 and the second substrate 120 can be used to accommodate liquid crystal molecules, forming a liquid crystal cell. Optionally, the first substrate 110 and the second substrate 120 cover the display area AA and the area of ​​the liquid crystal display panel 100 other than the display area AA.

[0031] Support pillars 130 are disposed between the first substrate 110 and the second substrate 120, with at least a portion of the support pillars 130 abutting against the first substrate 110 and / or the second substrate 120. Specifically, at least a portion of the support pillars 130 abuts against the first substrate 110, or at least a portion of the support pillars 130 abuts against the second substrate 120, or at least a portion of the support pillars 130 abuts against both the first substrate 110 and the second substrate 120. Optionally, in some embodiments, a portion of the support pillars 130 of the liquid crystal display panel 100 abuts against the second substrate 120, while the remaining portion of the support pillars 130 abuts against both the first substrate 110 and the second substrate 120. The support pillars 130 that simultaneously abut against the first substrate 110 and the second substrate 120 are used to maintain the uniformity of the liquid crystal cell thickness. The support pillars 130 that only abut against the second substrate 120 are used to provide support for the liquid crystal display panel 100 when the liquid crystal display panel 100 is subjected to pressure and the support pillars 130 that simultaneously abut against the first substrate 110 and the second substrate 120 cannot maintain the uniformity of the liquid crystal cell thickness, thus preventing damage to the liquid crystal display panel 100. In addition, the support pillars 130 are disposed in the display area AA and in areas other than the display area AA of the liquid crystal display panel 100. Figures 1 to 3 The present invention takes the support column 130 being set in the display area AA as an example, but is not limited thereto.

[0032] The first adhesive layer 140 at least covers the display area AA. The first adhesive layer 140 may also cover areas of the liquid crystal display panel 100 other than the display area AA. The first adhesive layer 140 may be disposed on the side of the first substrate 110 away from the second substrate 120, or on the side of the second substrate 120 away from the first substrate 110. Figures 1 to 3 The example described uses a layer disposed on the side of the first substrate 110 away from the second substrate 120, but the invention is not limited thereto. Optionally, the first adhesive layer 140 can be optically clear adhesive (OCA), a special adhesive used for bonding transparent optical components, which has high light transmittance and excellent adhesion properties. Further, the first adhesive layer 140 can be a UV-curable adhesive (UV adhesive).

[0033] The regions where the multiple support pillars 130 and / or the first adhesive layer 140 are located include regions with at least two different elastic moduli. It is understood that the present invention may include, but is not limited to, the following three embodiments: First, the regions where the multiple support pillars 130 are located include regions with at least two different elastic moduli, but the elastic modulus of the region where the first adhesive layer 140 is located is the same (e.g., ...). Figure 1 (As shown); Second, the region where the first adhesive layer 140 is located includes regions with at least two different elastic moduli, but the regions where the multiple support pillars 130 are located have the same elastic modulus (e.g., Figure 2 (As shown); Third, the regions where the multiple support columns 130 are located include regions with at least two different elastic moduli, and the regions where the first adhesive layer 140 is located include regions with at least two different elastic moduli (e.g. Figure 3 (As shown). Among them, multiple support pillars 130 and the first adhesive layer 140 may be located in the display area AA and the area outside of it.

[0034] This embodiment strengthens the strength of the areas containing the multiple support pillars 130 and / or the first adhesive layer 140 by including areas with at least two different elastic moduli, thereby at least partially strengthening the strength of the liquid crystal display panel 100. This provides stronger support for the edge of the display area AA of the liquid crystal display panel 100 when the temperature of the liquid crystal display panel 100 changes and causes interaction forces between the components, or when the liquid crystal display panel 100 is subjected to external forces. This prevents damage to the edge of the display area AA of the liquid crystal display panel 100, reduces the yellowing and bluing phenomenon of the edge of the display area AA of the liquid crystal display panel 100, and improves the display effect.

[0035] Figure 4 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention. Figure 5 yes Figure 4 A top view of the structure of the liquid crystal display panel. Figure 6This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention. Figure 7 yes Figure 6 A top view of the structure of the liquid crystal display panel. Figure 8 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention. Figure 9 yes Figure 8 A top view of the structure of the liquid crystal display panel.

[0036] like Figures 4 to 9 As shown, in some embodiments, the display area AA includes a central area AA1 and an edge area AA2 that at least partially surrounds the central area AA1; the elastic modulus of the support column 130 located at least partially in the edge area AA2 is greater than the elastic modulus of the support column 130 located in the central area AA1; and / or, the elastic modulus of the first adhesive layer 140 located at least partially in the edge area AA2 is greater than the elastic modulus of the first adhesive layer 140 located in the central area AA1.

[0037] Specifically, the present invention may include, but is not limited to, the following three embodiments: First, the elastic modulus of the support column 130 located at least partially in the edge region AA2 is greater than the elastic modulus of the support column 130 located in the middle region AA1, but the elastic modulus of the first adhesive layer 140 located in the edge region AA2 is equal to the elastic modulus of the first adhesive layer 140 located in the middle region AA1 (e.g., Figure 4 and Figure 5 (As shown); Second, the elastic modulus of the first adhesive layer 140, at least partially located in the edge region AA2, is greater than that of the first adhesive layer 140 located in the middle region AA1, but the elastic modulus of the support column 130 located in the edge region AA2 is equal to that of the support column 130 located in the middle region AA1 (as shown). Figure 6 and Figure 7 (As shown); Third, the elastic modulus of the support column 130, at least partially located in the edge region AA2, is greater than the elastic modulus of the support column 130 located in the middle region AA1, and the elastic modulus of the first adhesive layer 140, at least partially located in the edge region AA2, is greater than the elastic modulus of the first adhesive layer 140 located in the middle region AA1 (as shown). Figure 8 and Figure 9 (As shown).

[0038] Furthermore, the elastic modulus of the support pillars 130 located in the edge region AA2 can be uniform, and the elastic modulus of the support pillars 130 located in the middle region AA1 can also be uniform, thereby reducing the manufacturing difficulty of the liquid crystal display panel 100. The elastic modulus of the first adhesive layer 140 located in the edge region AA2 can also be uniform, and the elastic modulus of the first adhesive layer 140 located in the middle region AA1 can also be uniform, thereby reducing the manufacturing difficulty of the liquid crystal display panel 100.

[0039] Furthermore, the edge region AA2 of the first adhesive layer 140 can be cross-linked using ultraviolet (UV) light to achieve curing of the first adhesive layer 140. It should be noted that the cross-linking reaction utilizes UV light to initiate the photoinitiator in the UV adhesive, thereby triggering a rapid cross-linking polymerization reaction between monomers or oligomer molecules. The molecular chains are locked in a three-dimensional network by the cross-linking points, restricting their movement, which in turn makes the UV adhesive harder and increases its elastic modulus.

[0040] Optionally, the display area AA is divided into an edge area AA2 and a central area AA1 surrounded by the edge area AA2. The edge area AA2 can be a ring-shaped region surrounding the central area AA1, and the rest of the display area AA can be the central area AA1. Further, since the edge area AA2 can be a ring-shaped region at a certain distance from the edge of the display area AA, that is, the edge area AA2 has a width, this width can be less than or equal to 15mm. Optionally, this width can be set to any value among 3mm, 5mm, 8mm, 10mm, 12mm, or 15mm, but is not limited to these values. It is understood that when the width of the edge area AA2 is set to less than or equal to 15mm, it can at least partially cover the edge portion of the display area AA of the liquid crystal display panel 100 that exhibits yellowing or bluish discoloration when the temperature change of the liquid crystal display panel 100 causes interaction forces between the components, or when the liquid crystal display panel 100 is subjected to external forces, thereby improving the display effect.

[0041] This embodiment strengthens the edge region AA2 of the liquid crystal display panel 100 by setting the elastic modulus of the support pillar 130 located at least partially in the edge region AA2 to be greater than that of the support pillar 130 located in the middle region AA1; and / or, setting the elastic modulus of the first adhesive layer 140 located at least partially in the edge region AA2 to be greater than that of the first adhesive layer 140 located in the middle region AA1. This strengthens the edge region AA2 of the liquid crystal display panel 100 by providing stronger support when the temperature of the liquid crystal display panel 100 changes and causes interaction forces between the components, or when the liquid crystal display panel 100 is subjected to external forces. This prevents damage to the edge region AA2 of the liquid crystal display panel 100, reduces the yellowing and blueing phenomenon of the edge region AA2 of the liquid crystal display panel 100, and improves the display effect.

[0042] In some embodiments, within the intermediate region AA1, the elastic modulus of the first adhesive layer 140 gradually increases along the direction near the edge region AA2; and / or, within the edge region AA2, the elastic modulus of the support column 130 gradually increases along the direction near the edge of the display area AA.

[0043] Specifically, the present invention may include, but is not limited to, the following three embodiments: First, the elastic modulus of the first adhesive layer 140 gradually increases along the direction near the edge region AA2, but the elastic modulus of the support column 130 remains unchanged; Second, within the edge region AA2, along the direction near the edge of the display area AA, the elastic modulus of the support column 130 gradually increases, but the elastic modulus of the first adhesive layer 140 remains unchanged; Third, within the middle region AA1, along the direction near the edge region AA2, the elastic modulus of the first adhesive layer 140 gradually increases, and within the edge region AA2, along the direction near the edge of the display area AA, the elastic modulus of the support column 130 gradually increases.

[0044] The elastic modulus of the first adhesive layer 140 gradually increases, which can be achieved by gradually increasing the intensity of ultraviolet light irradiation during the preparation of the first adhesive layer 140. The elastic modulus of the support column 130 gradually increases, which can be achieved by using materials with different elastic moduli.

[0045] It should be noted that the yellowing and bluish discoloration of the edge area AA2 of the liquid crystal display panel 100 is more obvious closer to the edge of the display area AA. That is, the outer part of the edge area AA2 is more severely damaged when the temperature change of the liquid crystal display panel 100 causes interaction forces between the components, or when the liquid crystal display panel 100 is subjected to external forces.

[0046] In this embodiment, the elastic modulus of the first adhesive layer 140 gradually increases within the middle area AA1, along the direction close to the edge area AA2; and / or, within the edge area AA2, the elastic modulus of the support column 130 gradually increases along the direction close to the edge of the display area AA. This provides different levels of support for different levels of damage to the liquid crystal display panel 100, i.e., different levels of protection. This can specifically reduce the yellowing and blueing phenomenon in the edge area AA2 of the liquid crystal display panel 100 and improve the display effect.

[0047] In some embodiments, the elastic modulus of the support column 130 disposed in the edge region AA2 ranges from 3.5 to 4.5 GPa; the elastic modulus of the support column 130 disposed in the middle region AA1 ranges from 2.5 to 3.5 GPa. Specifically, the elastic modulus of the support column 130 disposed in the edge region AA2 can be any value selected from 3.5 GPa, 3.8 GPa, 4.0 GPa, 4.2 GPa, or 4.5 GPa, but is not limited to these values. The elastic modulus of the support column 130 disposed in the middle region AA1 can be any value selected from 2.5 GPa, 2.8 GPa, 3.0 GPa, 3.2 GPa, or 3.5 GPa, but is not limited to these values. It should be noted that when the elastic modulus of the support column 130 located in the edge region AA2 is 3.5 GPa, the elastic modulus of the support column 130 located in the middle region AA1 must be less than 3.5 GPa, so that the elastic modulus of the support column 130 located in the edge region AA2 is greater than that of the support column 130 located in the middle region AA1. Conversely, when the elastic modulus of the support column 130 located in the middle region AA1 is 3.5 GPa, the elastic modulus of the support column 130 located in the edge region AA2 must be greater than 3.5 GPa, so that the elastic modulus of the support column 130 located in the edge region AA2 is greater than that of the support column 130 located in the middle region AA1. In this embodiment, by setting the elastic modulus of the support pillars 130 of the edge area AA2 and the middle area AA1 to the above range, it can ensure that the edge area AA2 of the liquid crystal display panel 100 has sufficient support strength, so as to avoid damage to the edge area AA2 of the liquid crystal display panel 100, reduce the yellowing and blueing phenomenon of the edge area AA2 of the liquid crystal display panel 100, and improve the display effect.

[0048] Figure 10 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0049] like Figure 10 As shown, in some embodiments, the plurality of support columns 130 include a plurality of first support columns 131 and a plurality of second support columns 132; the height of the first support column 131 disposed in the edge region AA2 is less than the height of the first support column 131 disposed in the middle region AA1.

[0050] Specifically, in the thickness direction of the liquid crystal display panel 100, the height of the first support pillar 131 is greater than the height of the second support pillar 132. The second support pillar 132 can abut against the second substrate 120, and the first support pillar 131 abuts against the first substrate 110 and the second substrate 120. The first support pillar 131 is used to maintain the uniformity of the liquid crystal cell thickness, while the second support pillar 132 is used only to provide support for the liquid crystal display panel 100 when it is under pressure and the first support pillar 131 cannot maintain the uniformity of the liquid crystal cell thickness, thereby preventing damage to the liquid crystal display panel 100.

[0051] It is understandable that multiple first support pillars 131 and multiple second support pillars 132 are provided in the edge area AA2, multiple first support pillars 131 and multiple second support pillars 132 are also provided in the middle area AA1, and multiple first support pillars 131 and multiple second support pillars 132 are also provided in the area outside the display area AA.

[0052] The heights of the multiple first support columns 131 can be the same or different; the heights of the multiple second support columns 132 can be the same or different. This invention does not impose any restrictions on this, as long as the height of the first support column 131 is greater than the height of the second support column 132.

[0053] refer to Figure 10 Optionally, the heights of the first support columns 131 located in the edge region AA2 can all be the same, and all of them are H1. The heights of the first support columns 131 located in the middle region AA1 can also all be the same, and all of them are H2, satisfying H1 < H2. Alternatively, in some other embodiments, the heights of the first support columns 131 located in the edge region AA2 can be different, wherein the highest height of the first support columns 131 located in the edge region AA2 is H1, and the heights of the first support columns 131 located in the middle region AA1 can also be different, wherein the lowest height of the first support columns 131 located in the middle region AA1 is H2, satisfying H1 < H2.

[0054] In this embodiment, by making the height of the first support column 131 in the edge area AA2 smaller than the height of the first support column 131 in the middle area AA1, it can be ensured that the thickness of the liquid crystal cell in the edge area AA2 of the liquid crystal display panel 100 will not be too high when the liquid crystal display panel 100 is not under stress; and it can also be ensured that after the liquid crystal display panel 100 is under stress, because the elastic modulus of the first support column 131 is high, the first support column 131 is not easily compressed, thus providing sufficient support strength for the edge area AA2 and reducing the yellowing and bluing phenomenon in the edge area AA2 of the liquid crystal display panel 100.

[0055] In some embodiments, the height of the first support pillar 131 disposed in the edge region AA2 is H1, and the height of the first support pillar 131 disposed in the middle region AA1 is H2, wherein 0 < H2 - H1 ≤ 0.06 μm. Specifically, in the thickness direction of the liquid crystal display panel 100, the heights of the first support pillars 131 disposed in the edge region AA2 can be the same, both being H1, and the heights of the first support pillars 131 disposed in the middle region AA1 can also be the same, both being H2. The difference between H2 and H1 can be any value among 0.01 μm, 0.02 μm, 0.03 μm, 0.04 μm, 0.05 μm, or 0.06 μm, but is not limited to these values. This embodiment, by setting the heights of the first support pillars 131 in the edge region AA2 and the middle region AA1 to satisfy the above relationship, can further reduce the yellowing and bluish discoloration of the edge region AA2 of the liquid crystal display panel 100, and improve the display effect.

[0056] Figure 11 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention.

[0057] like Figure 10 As shown, in some embodiments, the second substrate 120 includes a plurality of color resist units 121; the second substrate 120 is disposed between the support pillar 130 and the first adhesive layer 140; in the edge region AA2, the support pillar 130 and the color resist units 121 are made of the same material; in the middle region AA1, the material of the support pillar 130 includes polystyrene. Specifically, the first substrate 110 can be a color filter (CF), which selectively transmits white light emitted from the backlight of the liquid crystal display panel 100, enabling pixels to display different colors. The filter may include a plurality of color resist units 121, which may include red, green, and blue color resists. The red color resist transmits red light while absorbing or blocking other wavelengths of light; the green color resist transmits green light while absorbing or blocking other wavelengths of light; and the blue color resist transmits blue light while absorbing or blocking other wavelengths of light. It is understood that the red, green, and blue color resists are made of different materials, but the elastic modulus of the materials used for the red, green, and blue color resists is greater than that of polystyrene. Optionally, the material of the support column 130 may include one or a combination of at least two of the materials of the red, green, and blue color resists. Figure 10 Taking the support column 130 as an example, which uses three materials simultaneously including red, green, and blue color resist, the example is not limited to this. In this embodiment, by setting the support column 130 in the edge region AA2 to be made of the same material as the color resist unit 121, and the support column 130 in the middle region AA1 to be made of polystyrene, it is possible to achieve that the elastic modulus of the support column 130 in the edge region AA2 is greater than that of the support column 130 in the middle region AA1.

[0058] In some embodiments, the elastic modulus of the first adhesive layer 140 disposed in the edge region AA2 ranges from 500 to 1200 kPa; the elastic modulus of the first adhesive layer 140 disposed in the middle region AA1 ranges from 100 to 500 kPa. Specifically, the elastic modulus of the first adhesive layer 140 disposed in the edge region AA2 can be any value selected from 500 kPa, 600 kPa, 700 kPa, 800 kPa, 900 kPa, 1000 kPa, 1100 kPa, or 1200 kPa, but is not limited to these values. The elastic modulus of the first adhesive layer 140 disposed in the middle region AA1 can be any value selected from 100 kPa, 200 kPa, 300 kPa, 400 kPa, or 500 kPa, but is not limited to these values. It should be noted that when the elastic modulus of the first adhesive layer 140 located in the edge region AA2 is 500 kPa, the elastic modulus of the first adhesive layer 140 located in the middle region AA1 must be less than 500 kPa, so that the elastic modulus of the first adhesive layer 140 located in the edge region AA2 is greater than that of the first adhesive layer 140 located in the middle region AA1. Similarly, when the elastic modulus of the first adhesive layer 140 located in the middle region AA1 is 500 kPa, the elastic modulus of the first adhesive layer 140 located in the edge region AA2 must be greater than 500 kPa, so that the elastic modulus of the first adhesive layer 140 located in the edge region AA2 is greater than that of the first adhesive layer 140 located in the middle region AA1. In this embodiment, by setting the elastic modulus of the first adhesive layer 140 of the edge area AA2 and the middle area AA1 to the above range, it can ensure that the edge area AA2 of the liquid crystal display panel 100 has sufficient support strength, so as to avoid damage to the edge area AA2 of the liquid crystal display panel 100, reduce the yellowing and blueing phenomenon of the edge area AA2 of the liquid crystal display panel 100, and improve the display effect.

[0059] Figure 12 This is a cross-sectional structural diagram of another liquid crystal display panel provided in an embodiment of the present invention. Figure 13 yes Figure 12 A top view of the structure of the liquid crystal display panel.

[0060] like Figure 12 and Figure 13As shown, in some embodiments, the liquid crystal display panel 100 further includes a bezel area NA surrounding the display area AA; a support pillar 130 and a first adhesive layer 140 are also disposed in the bezel area NA; the elastic modulus of the support pillar 130 in the bezel area NA is equal to the elastic modulus of at least a portion of the support pillar 130 located in the edge area AA2; and / or, the elastic modulus of the first adhesive layer 140 in the bezel area NA is equal to the elastic modulus of at least a portion of the first adhesive layer 140 located in the edge area AA2. Specifically, the present invention may include, but is not limited to, the following three embodiments: First, only the elastic modulus of the support pillars 130 in the border region NA is equal to the elastic modulus of at least a portion of the support pillars 130 in the edge region AA2; Second, only the elastic modulus of the first adhesive layer 140 in the border region NA is equal to the elastic modulus of at least a portion of the first adhesive layer 140 in the edge region AA2; Third, the elastic modulus of the support pillars 130 in the border region NA is equal to the elastic modulus of at least a portion of the support pillars 130 in the edge region AA2, and the elastic modulus of the first adhesive layer 140 in the border region NA is equal to the elastic modulus of at least a portion of the first adhesive layer 140 in the edge region AA2. Preferably, the elastic modulus of the support pillars 130 in the border region NA is entirely equal to the elastic modulus of the support pillars 130 in the edge region AA2; and / or, the elastic modulus of the first adhesive layer 140 in the border region NA is entirely equal to the elastic modulus of the first adhesive layer 140 in the edge region AA2. In this embodiment, by setting the elastic modulus of the support pillar 130 in the border area NA to be equal to the elastic modulus of at least a portion of the support pillar 130 in the edge area AA2; and / or, by setting the elastic modulus of the first adhesive layer 140 in the border area NA to be equal to the elastic modulus of at least a portion of the first adhesive layer 140 in the edge area AA2, it can be ensured that the border area NA of the liquid crystal display panel 100 also has sufficient support strength to avoid damage to the border area NA of the liquid crystal display panel 100; at the same time, the support pillar 130 and / or the first adhesive layer 140 of the edge area AA2 and the border area NA can be prepared simultaneously, simplifying the manufacturing process of the liquid crystal display panel 100.

[0061] Figure 14 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention.

[0062] Based on the same inventive concept, such as Figure 14 As shown, the present invention also provides a display device 200, including the liquid crystal display panel 100 described above. The display device 200 provided in this embodiment can be a vehicle-mounted display screen as shown in the figure, or any electronic product with display function, including but not limited to the following categories: mobile phones, televisions, laptops, desktop monitors, tablet computers, digital cameras, smart bracelets, smart glasses, or medical devices, etc., and the present invention does not limit this to any of them.

[0063] For details on the specific implementation and technical effects of the display device 200 of the present invention, please refer to the specific embodiments of the liquid crystal display panel 100 described above. Repeated descriptions will not be repeated here.

[0064] In summary, as can be seen from the above embodiments, compared with the prior art, the liquid crystal display panel and display device provided by the present invention achieve at least the following beneficial effects: The present invention provides a liquid crystal display panel and a display device, wherein the liquid crystal display panel has a display area; the liquid crystal display panel includes: a first substrate and a second substrate; a plurality of support pillars disposed between the first substrate and the second substrate, at least a portion of the support pillars abutting against the first substrate and / or the second substrate; a first adhesive layer covering at least the display area; wherein the area where the plurality of support pillars and / or the first adhesive layer is located includes areas with at least two different elastic moduli. The present invention, by providing that the area where the plurality of support pillars and / or the first adhesive layer is located includes areas with at least two different elastic moduli, at least partially strengthens the strength of the area where the plurality of support pillars and / or the first adhesive layer is located, thereby at least partially strengthening the strength of the liquid crystal display panel. This provides stronger support for the edge of the display area of ​​the liquid crystal display panel when temperature changes cause interaction forces between components, or when the liquid crystal display panel is subjected to external forces, preventing damage to the edge of the display area, reducing yellowing and bluing phenomena at the edge of the display area, and improving the display effect.

[0065] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A liquid crystal display panel, characterized by comprising: The liquid crystal display panel has a display area; the liquid crystal display panel comprises: a first substrate and a second substrate; a plurality of support columns, the support columns being arranged between the first substrate and the second substrate, at least part of the support columns abutting the first substrate and / or the second substrate; a first adhesive layer, the first adhesive layer covering at least the display area; wherein the area where the plurality of support columns and / or the first adhesive layer are located comprises at least two areas with different elastic moduli.

2. The liquid crystal display panel according to claim 1, characterized by The display area comprises a middle area and an edge area surrounding at least part of the middle area; the elastic modulus of at least part of the support columns located in the edge area is greater than the elastic modulus of the support columns located in the middle area; and / or, the elastic modulus of at least part of the first adhesive layer located in the edge area is greater than the elastic modulus of the first adhesive layer located in the middle area.

3. The liquid crystal display panel according to claim 2, wherein In the middle area, the elastic modulus of the first adhesive layer gradually increases in the direction close to the edge area; and / or, in the edge area, the elastic modulus of the support columns gradually increases in the direction close to the edge of the display area.

4. The liquid crystal display panel according to claim 2, wherein The elastic modulus of the support columns arranged in the edge area ranges from 3.5 to 4.5 Gpa; the elastic modulus of the support columns arranged in the middle area ranges from 2.5 to 3.5 Gpa.

5. The liquid crystal display panel according to claim 2, wherein The plurality of support columns comprises a plurality of first support columns and a plurality of second support columns; the height of the first support columns arranged in the edge area is less than the height of the first support columns arranged in the middle area.

6. The liquid crystal display panel according to claim 5, wherein The height of the first support columns arranged in the edge area is H1, and the height of the first support columns arranged in the middle area is H2, wherein 0 7. The liquid crystal display panel according to claim 2, wherein The second substrate comprises a plurality of color resistance units; The second substrate is arranged between the support columns and the first adhesive layer; In the edge area, the material of the support columns and the color resistance units is the same; In the middle area, the material of the support columns comprises polystyrene.

8. The liquid crystal display panel according to claim 2, wherein The elastic modulus of the first adhesive layer arranged in the edge area ranges from 500 to 1200 Kpa; the elastic modulus of the first adhesive layer arranged in the middle area ranges from 100 to 500 Kpa.

9. The liquid crystal display panel according to claim 1, wherein The material of the first adhesive layer comprises ultraviolet light curing glue.

10. The liquid crystal display panel according to claim 2, wherein The liquid crystal display panel further has a frame area surrounding the display area; The support columns and the first adhesive layer are also arranged in the frame area; The elastic modulus of the support columns in the frame area is equal to the elastic modulus of at least part of the support columns located in the edge area; and / or, the elastic modulus of the first adhesive layer in the frame area is equal to the elastic modulus of at least part of the first adhesive layer located in the edge area.

11. A display device, characterized by comprising: The liquid crystal display panel comprises a liquid crystal display panel according to any one of claims 1 to 10.

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