Patent Application
20240170501
The present application relates to a field of display technology, and in particular, to a display panel and a display device.
With the development of display technology, narrow-bezel display products have received extensive attention.
At present, in narrow-bezel display panels, there are design requirements for making narrow bezels, so a width of a sealant frame is less, which reduces sealing performance of the sealant frame. As shown in
The present application provides a display panel and a display device to solve a technical problem that moisture easily enters from between an insulating material layer and a metal trace layer at a position of a sealant frame of a narrow-bezel display panel.
The present application provides a display panel, including:
In the present application, the first groove structure extending through the insulating layer is disposed in the first substrate, and one side of the sealant layer away from the second substrate extends into the first groove structure, thereby blocking a moisture passage between the insulating layer and each signal lines, preventing moisture from entering the display panel from between the insulating layer and each signal line, and improving sealing performance of the display panel.
In the display panel of the present application, the first groove structure includes a plurality of first grooves, the first grooves are located between the signal lines, and the sealant layer includes a plurality of first filling portions disposed in the plurality of first grooves.
In the present embodiment, the moisture passage between the insulating layer and each signal line is blocked by the first filling portions, thus preventing moisture from entering the display panel from between the insulating layer and the signal line, which improves the sealing performance of the display panel. Obviously, a material of the first filling portions is a material of a sealant frame. The first filling portions are disposed in the first grooves, that is, the first filling portions are directly bonded to the first base. Accordingly, a contact area between the sealant layer and the first substrate increases, which not only improves the sealing performance of the display panel, but also ensures bonding stability between the sealant layer and the first substrate.
In the display panel of the present application, wherein a width of one of the first grooves is equal to an interval between two corresponding adjacent signal lines, and the first filling portions are disposed in the first grooves and in contact with and connected to lateral sides of the signal lines.
In the present embodiment, the width of the first groove is set to be equal to the interval between the corresponding two adjacent signal lines. That is to say, a portion of the insulating layer located between the adjacent two adjacent signal lines is completely patterned to form the first groove, which maximizes the width of the first groove, increases a width of the first filling portion, enables the first filling portion to better block the moisture passage between the insulating layer and each signal line, and also increases an overall contact area between the sealant layer and the first substrate.
In the display panel of the present application, the first groove structure includes the plurality of first grooves, and each of the first grooves is disposed between two adjacent signal lines.
In the present embodiment, one of the first grooves is defined between any two adjacent signal lines. That is to say, the first grooves are defined as many as possible in the insulating layer, and the filling portion between each two adjacent signal lines can prevent entry of moisture.
In the display panel of the present application, the first groove structure includes a plurality of second grooves, an orthographic projection of each of the signal lines projected on the first base covers an orthographic projection of one of the second grooves projected on the first base, and the sealant layer includes a plurality of second filling portions disposed in the plurality of second grooves.
In the present embodiment, the second grooves are defined in the insulating layer above the signal lines. The second grooves extend through the insulating layer, so that the second filling portions disposed in the second grooves are directly bonded to the signal lines, thereby blocking the moisture passage between the insulating layer and each signal line to improve the sealing performance of the display panel.
In the present embodiment, the second substrate includes a second base and a light shielding layer disposed on one side of the second base close to the first substrate; and
In the present embodiment, the second groove structure is disposed in the light shielding layer to reduce a thickness of the light shielding layer at a position of the second groove structure, thereby blocking a passage where moisture can enter from the light shielding layer.
In the display panel of the present application, the second groove structure includes a plurality of third grooves, the plurality of third grooves extend through the light shielding layer in a thickness direction of the light shielding layer, and the sealant layer includes a plurality of third filling portions disposed in the plurality of third grooves; and an orthographic projection of each of the signal lines projected on the second base covers an orthographic projection of one of the third grooves projected on the second base.
In the present embodiment, the third filling portions are disposed in the third grooves to block a moisture passage at a position of the light shielding layer, thereby further improving the sealing performance of the display panel. Moreover, since the present application arranges the third grooves in an area covered by the signal lines, the backlight is shielded by the signal lines, thereby preventing light leakage of the display panel.
In the display panel of the present application, the second groove structure includes a plurality of fourth grooves, a depth of each of the fourth grooves is less than a thickness of the light shielding layer, and the sealant layer includes a plurality of fourth filling portions disposed in the plurality of fourth grooves.
In the display panel of the present application, an orthographic projection of the fourth grooves projected on the second base does not overlap with the orthographic projection of the signal lines projected on the second base.
In the present application, besides disposing the third grooves in the light shielding layer, the second groove structure includes the plurality of fourth grooves in the sealant sub-region, the depth of the fourth groove is less than the thickness of the light shielding layer, and the sealant layer includes a plurality of fourth filling portions disposed in the plurality of fourth grooves. By arranging the fourth grooves, the thickness of the light shielding layer is reduced, thereby reducing a risk of forming the moisture passage at the light shielding layer.
In the display panel of the present application, the second substrate includes a second base, a light shielding layer disposed on one side of the second base close to the first substrate, and a metal layer disposed on one side of the light shielding layer close to the first substrate; and
Accordingly, the present application further provides a display device, including a display panel and a backlight module combined with the display panel, wherein the display panel includes:
In the display device of the present application, the first groove structure includes a plurality of first grooves, the first grooves are located between the signal lines, and the sealant layer includes a plurality of first filling portions disposed in the plurality of first grooves.
In the display device of the present application, a width of one of the first grooves is equal to an interval between two corresponding adjacent signal lines, and the first filling portions are disposed in the first grooves and in contact with and connected to lateral sides of the signal lines.
In the display device of the present application, the first groove structure includes the plurality of first grooves, and each of the first grooves is disposed between two adjacent signal lines.
In the display device of the present application, the first groove structure includes a plurality of second grooves, an orthographic projection of each of the signal lines projected on the first base covers an orthographic projection of one of the second grooves projected on the first base, and the sealant layer includes a plurality of second filling portions disposed in the plurality of second grooves.
In the display device of the present application, the second substrate includes a second base and a light shielding layer disposed on one side of the second base close to the first substrate; and
In the display device of the present application, the second groove structure includes a plurality of third grooves, the plurality of third grooves extend through the light shielding layer in a thickness direction of the light shielding layer, and the sealant layer includes a plurality of third filling portions disposed in the plurality of third grooves; and
In the display device of the present application, the second groove structure includes a plurality of fourth grooves, a depth of each of the fourth grooves is less than a thickness of the light shielding layer, and the sealant layer includes a plurality of fourth filling portions disposed in the plurality of fourth grooves.
In the display device of the present application, an orthographic projection of the fourth grooves projected on the second base does not overlap with the orthographic projection of the signal lines projected on the second base.
In the display device of the present application, the second substrate includes a second base, a light shielding layer disposed on one side of the second base close to the first substrate, and a metal layer disposed on one side of the light shielding layer close to the first substrate; and
In the present application, the first groove structure extending through the insulating layer is disposed in the first substrate, and one side of the sealant layer away from the second substrate extends into the first groove structure, thereby blocking a moisture passage between the insulating layer and each signal lines, preventing moisture from entering the display panel from between the insulating layer and each signal line, and improving the sealing performance of the display panel.
In order to more clearly illustrate the embodiments of the present disclosure or related art, figures which will be described in the embodiments are briefly introduced hereinafter. It is obvious that the drawings are merely for the purposes of illustrating some embodiments of the present disclosure, and a person having ordinary skill in this field can obtain other figures according to these figures without inventive work.
The present application is described below with reference to accompanying drawings and with respect to various embodiments. Directional terms mentioned in the present invention, such as “up”, “down”, “front”, “rear”, “left”, “right”, “inner”, “outer”, and “side”, are only for illustrative purposes based on directions in the accompanying drawings. Therefore, the directional terms are for describing and understanding the present invention, not for limiting the present invention. In the drawings, structurally similar components are denoted by the same reference numerals.
In the description of the present application, it should be understood that the terms “first” and “second” are only used for illustrative purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, for features with wordings like “first” and “second”, the present application can expressly or implicitly include one or more of said features. In the description of the present application, “multiple” means two or more, unless otherwise expressly and specifically defined.
In the description of the present application, it should be noted that, unless otherwise expressly specified and defined, terms such as “installed”, “connected” and “coupled” should be understood in a broad sense, for example, elements can be fixedly connected or detachably connected, or elements can be connected in an integral form; elements can have a mechanical or electrical connection relationship, or elements can communicate with each other; and elements can be directly connected or indirectly connected through an intermediate medium, or elements can have inner spaces communicating with each other, or elements can react with each other. For those of ordinary skill in the art, specific meanings of the above terms in the present application can be understood according to actual conditions.
Technical solutions of the present application are described with reference to specific embodiments.
Referring to
Referring to
It is understood that conventional narrow-bezel display panels have design requirements for narrow bezels, so a width of a sealant frame is less, which reduces a sealing effect of the sealant frame. As shown in
It should be noted that, in forming the first groove structure in the insulating layer 13, a photo-mask design in a patterning process of fabricating the insulating layer 13 can be adjusted to form the first groove structure in the insulating layer 13 without extra manufacturing steps.
Referring to
It can be understood that the first grooves 131 are located between the signal lines 12 and are used to block the insulating layer 13 in positions between the signal lines 12. The sealant layer 30 includes the first filling portions 31 disposed in the first grooves 131. The first filling portions 31 block a moisture passage between the insulating layer 13 and the signal lines 12, thereby preventing moisture from entering the display panel 1 from between the insulating layer 13 and the signal lines 12, which improves the sealing performance of the display panel 1. Obviously, a material of the first filling portions 31 is a material of the sealant frame 01. The first filling portions 31 are disposed in the first grooves 131, that is, the first filling portions 31 are directly bonded to the first base 11. Accordingly, an overall contact area between the sealant layer 30 and the first substrate 10 increases, which not only improves the sealing performance of the display panel 1, but also ensures bonding stability between the sealant layer 30 and the first substrate 10.
In some embodiments, please refer to
It can be understood that the width of the first groove 131 is set to be equal to the interval between the corresponding two adjacent signal lines 12. That is to say, a portion of the insulating layer 13 located between the adjacent two adjacent signal lines 12 is completely patterned to form the first groove 131, which maximizes the width of the first groove 131, increases a width of the first filling portion 31, enables the first filling portion 31 to better block the moisture passage between the insulating layer 13 and each signal line 12, and also increases an overall contact area between the sealant layer 30 and the first substrate 10.
Referring to
It can be understood that the first groove structure includes the first grooves 131. In the sealant sub-region 300, one of the first grooves 12 is defined between any two adjacent signal lines 12. That is to say, the first grooves 131 are defined as many as possible in the insulating layer 13, and the filling portion between each two adjacent signal lines 12 can prevent entry of moisture.
Referring to
It can be understood that the first groove structure includes at least one second groove 132 located in the sealant sub-region 300, and the orthographic projection of the signal lines 12 projected on the first base 11 covers the orthographic projection of the second grooves 132 projected on the first base 11. That is to say, the second grooves 132 are defined in the insulating layer 13 above the signal lines 12. The second grooves 132 extend through the insulating layer 13, so that the second filling portions 32 disposed in the second grooves 132 are directly bonded to the signal lines 12, thereby blocking the moisture passage between the insulating layer 13 and each signal line 12 to improve the sealing performance of the display panel 1.
Referring to
It can be understood that in conventional narrow-bezel display panel 1, due to the design requirements for the narrow bezels, the width of the sealant frame 01 is less, which reduces the sealing effects of the sealant frame 01. As shown in
Referring to
It can be understood that the second groove structure includes the plurality of third grooves 221 located in the sealant sub-region 300, and the third grooves 221 extend through the light shielding layer 22 so as to disconnect the light shielding layer at positions of the third grooves 221 to prevent moisture from entering from a position of the light shielding layer 22. The sealant layer 30 includes a plurality of third filling portions 33 disposed in the plurality of third grooves 221, the moisture passage at the position of the light shielding layer 22 is cut off by the third filling portions 33 disposed in the third grooves 221, thereby further improving the sealing performance of the display panel 1.
It should be noted that the orthographic projection of the signal lines 12 projected on the second base 21 covers the orthographic projection of the third grooves 221 projected on the second base 21. When the third grooves 221 extend through the light shielding layer 22, the light shielding layer 22 cannot shield light at the positions of the third grooves 221, which may cause light leakage of the display panel 1. In solution, the present application arranges the third grooves 221 in an area covered by the signal lines 12, the backlight is shielded by the signal lines 12, thereby preventing light leakage of the display panel 1.
Referring to
An orthographic projection of the fourth grooves 222 projected on the second base 21 does not overlap with the orthographic projection of the signal lines 12 projected on the second base 21.
It can be understood that, besides disposing the third grooves 221 in the light shielding layer 22, the second groove structure includes the plurality of fourth grooves 222 in the sealant sub-region 300, the depth of the fourth groove 222 is less than the thickness of the light shielding layer 22, and the sealant layer 30 includes a plurality of fourth filling portions 34 disposed in the plurality of fourth grooves 222. By arranging the fourth grooves 222, the thickness of the light shielding layer 22 is reduced, thereby reducing a risk of forming the moisture passage at the light shielding layer 22. Obviously, the depth of the fourth groove 222 is less than the thickness of the light shielding layer 22, so the light shielding layer 22 can still shield light at positions of the fourth grooves 222, and the orthographic projection of the fourth grooves 222 projected on the second base 21 does not overlap the orthographic projection of the signal lines 12 projected on the second base 21.
Referring to
It can be understood that a thickness of the metal layer 23 is less than a depth of the second groove structure. The metal layer 23 forms the concave portions 231 in the second groove structure, and one side of the sealant layer 30 away from the first substrate 10 extends into the concave portions 231. By having the concave portions 231 of the metal layer 23 and filling the sealant layer 30 into the concave portions 231, the present application reduces a risk of moisture intrusion from the light shielding layer 22. Specifically, the metal layer 23 can be a common electrode layer, gold balls can be disposed in the sealant layer 30, and the common electrode layer can be connected to the signal lines 12 through the sealant layer 30 embedded with the gold balls.
The present application further provides a display device, the display device includes the display panel 1 described in any of the previous embodiments, and further includes a backlight module combined with the display panel.
In the present application, the first groove structure extending through the insulating layer 13 is disposed in the first substrate 10, and one side of the sealant layer 30 away from the second substrate 20 extends into the first groove structure, thereby blocking the moisture passage between the insulating layer 13 and each signal lines 12, preventing moisture from entering the display panel 1 from between the insulating layer 13 and each signal line 12, and improving the sealing performance of the display panel 1.
In summary, although the present invention has been disclosed above with preferable embodiments, the above preferable embodiments are not intended to limit the present invention. Those of ordinary skill in the art can make various changes and modifications. Therefore, the protection scope of the present invention is subject to the scope defined by the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202210333018.8 | Mar 2022 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2022/086586 | 4/13/2022 | WO |
