Patent
Display panel and display device
| العنوان: | Display panel and display device |
|---|---|
| Patent Number: | 12178,102 |
| تاريخ النشر: | December 24, 2024 |
| Appl. No: | 17/437142 |
| Application Filed: | May 18, 2021 |
| مستخلص: | A display panel and a display device are provided. The display panel includes a base substrate and a conductive member, wherein the conductive member is located on the base substrate and includes a first conductive sub-layer, a second conductive sub-layer and a third conductive sub-layer stacked in sequence; the first conductive sub-layer is closer to the base substrate than the third conductive sub-layer; a conductivity of the first conductive sub-layer is smaller than that of the second conductive sub-layer, and a melting point of the third conductive sub-layer is larger than that of the second conductive sub-layer; the second conductive sub-layer includes a first surface close to the first conductive sub-layer and a second surface close to the third conductive sub-layer, the first surface and the second surface are oppositely arranged; the third conductive sub-layer protrudes from the second surface along a width direction of the conductive member. |
| Inventors: | BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD. (Beijing, CN); BOE TECHNOLOGY GROUP CO., LTD. (Beijing, CN) |
| Assignees: | BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD. (Beijing, CN), BOE TECHNOLOGY GROUP CO., LTD. (Beijing, CN) |
| Claim: | 1. A display panel, comprising: a display area having a plurality of pixel units; a peripheral area located at at least one side of the display area; a barrier layer located on a base substrate; a conductive member arranged at one side of the barrier layer facing away from the base substrate; a length of the conductive member in an extending direction of the conductive member being larger than a width of the conductive member in a direction intersecting with the extending direction; the conductive member comprising a first conductive sub-layer, a second conductive sub-layer and a third conductive sub-layer stacked in sequence; the first conductive sub-layer being closer to the base substrate than the third conductive sub-layer; and a first conductive part, the first conductive part and the conductive member being arranged in a same layer and made of a same material, wherein a conductivity of the first conductive sub-layer is smaller than that of the second conductive sub-layer, a thickness of the first conductive sub-layer is smaller than that of the second conductive sub-layer, and a melting point of the third conductive sub-layer is larger than that of the second conductive sub-layer, wherein the second conductive sub-layer comprises a first surface close to the first conductive sub-layer and a second surface close to the third conductive sub-layer; the first surface and the second surface are arranged opposite to each other; the third conductive sub-layer protrudes from the second surface along a width direction of the conductive member; and the width direction intersects with the extending direction of the conductive member, and wherein the first conductive part is located in the display area, and the conductive member is located in the peripheral area and is electrically connected to the first conductive part. |
| Claim: | 2. The display panel according to claim 1 , wherein the third conductive sub-layer is not in contact with the first conductive sub-layer. |
| Claim: | 3. The display panel according to claim 1 , wherein the second conductive sub-layer further comprises a side surface connecting a side edge of the first surface and a side edge of the second surface located at a same side of the second conductive sub-layer; in a cross section taken along a direction perpendicular to the extending direction of the conductive member, an intersection point between the side surface and the first conductive sub-layer is a first intersection point, an intersection point between the side surface and the third conductive sub-layer is a second intersection point, and at least part of the side surface is located at one side of a connecting line between the first intersection point and the second intersection point close to the second conductive sub-layer. |
| Claim: | 4. The display panel according to claim 3 , wherein the side surface comprises at least two side sub-surfaces, which comprise a first side sub-surface close to the first conductive sub-layer and a second side sub-surface close to the third conductive sub-layer, and an angle formed by the first side sub-surface and the first conductive sub-layer is smaller than an angle formed by the second side sub-surface and the first conductive sub-layer. |
| Claim: | 5. The display panel according to claim 4 , wherein in the cross section taken along the direction perpendicular to the extending direction of the conductive member, a distance from, an intersection point between an extension line of the second side sub-surface and the first conductive sub-layer, to, an intersection point between the first side sub-surface and the first conductive sub-layer, is d1; and a distance of the first conductive sub-layer extending beyond the first surface is Δw1, wherein d1<Δw1, and a distance of the third conductive sub-layer extending beyond the second surface is Δw2, wherein d1<Δw2. |
| Claim: | 6. The display panel according to claim 3 , wherein the side surface comprises three side sub-surfaces arranged in sequence, comprising a first side sub-surface, a second side sub-surface and a third side sub-surface; the first side sub-surface is closer to the first conductive sub-layer than the third side sub-surface; an angle formed by the first side sub-surface and the first conductive sub-layer is a first angle; an angle formed by the second side sub-surface and the first conductive sub-layer is a second angle; an angle formed by the third side sub-surface and the first conductive sub-layer is a third angle; the third angle is larger than the second angle, and the second angle is larger than the first angle, or, the second conductive sub-layer comprises two side surfaces, which are arranged opposite to each other and are symmetrically arranged along a thickness direction of the conductive member. |
| Claim: | 7. The display panel according to claim 3 , wherein at least one of the first surface, the second surface and the side surface of the second conductive sub-layer contains at least one of N element, S element, P element and Cl element. |
| Claim: | 8. The display panel according to claim 1 , wherein a width of the first surface is smaller than that of the first conductive sub-layer, a width of the second surface is smaller than that of the third conductive sub-layer, and a width difference between the third conductive sub-layer and the second surface is larger than a thickness of the third conductive sub-layer. |
| Claim: | 9. The display panel according to claim 1 , wherein two adjacent conductive members are provided, the two adjacent conductive members are insulated from each other and located in a same layer; the two adjacent conductive members comprise a first conductive member and a second conductive member; and a distance between the third conductive sub-layer of the first conductive member and the third conductive sub-layer of the second conductive member is smaller than a distance between the second surface of the second conductive sub-layer of the first conductive member and the second surface of the second conductive sub-layer of the second conductive member. |
| Claim: | 10. The display panel according to claim 9 , wherein the second surface of the first conductive member and the second surface of the second conductive member have different distances at different positions. |
| Claim: | 11. The display panel according to claim 9 , wherein w1 is a maximum width of the first conductive member in a cross section thereof along a width direction thereof, w2 is a maximum width of the second conductive member in a cross section thereof along a width direction thereof, Δw11 is a distance of the third conductive sub-layer extending beyond the second surface in the first conductive member, Δw12 is a distance of the third conductive sub-layer extending beyond the second surface in the second conductive member, dmin is a minimum distance between the first conductive member and the second conductive member; and a relational expression as below is satisfied: [mathematical expression included] |
| Claim: | 12. The display panel according to claim 1 , wherein two conductive members are provided, the two conductive members are insulated from each other and have different distances from the base substrate; the two conductive members comprise a first conductive member with a thickness of T3 and a second conductive member with a thickness of T4, wherein T4 is larger than T3; a distance of the third conductive sub-layer extending beyond the second surface in the first conductive member is Δw3, a distance of the third conductive sub-layer extending beyond the second surface in the second conductive member is Δw4; and a relational expression as below is satisfied: [mathematical expression included] |
| Claim: | 13. The display panel according to claim 1 , wherein two conductive members are provided and are insulated from each other; the two conductive members comprise a first conductive member and a second conductive member, the first conductive member is closer to the display area than the second conductive member, and the third conductive sub-layer in the first conductive member protrudes from the second surface by a size larger than that of the third conductive sub-layer in the second conductive member. |
| Claim: | 14. The display panel according to claim 1 , further comprising a second conductive part, wherein the second conductive part and the conductive member are arranged in different layers, the conductive member has a first end, the second conductive part has a second end, an insulating layer is arranged between the first end and the second end, the insulating layer has a first via hole exposing the first end or the second end, and the conductive member is connected with the second conductive part through the first via hole. |
| Claim: | 15. The display panel according to claim 1 , further comprising a second conductive part, wherein the second conductive part and the conductive member are located in a same layer. |
| Claim: | 16. The display panel according to claim 1 , further comprising a third conductive part, wherein the first conductive part is electrically connected to the third conductive part, the third conductive part has a third end, the first conductive part has a fourth end, an insulating layer is arranged between the third end and the fourth end, the insulating layer has a second via hole exposing the third end or the fourth end, and the first conductive part is connected with the third conductive part through the second via hole. |
| Claim: | 17. The display panel according to claim 1 , wherein the conductive member comprises a first part and a second part, a width of the first part is larger than that of the second part, the third conductive sub-layer of the first part protrudes from the second surface along a width direction of the conductive member, the third conductive sub-layer of the second part is flush with the second surface along the width direction of the conductive member, or the third conductive sub-layers of the first part and of the second part both protrude from the second surface along the width direction of the conductive member, and a protruded portion of the first part has a width larger than that of the second part. |
| Claim: | 18. The display panel according to claim 1 , wherein the conductive member is electrically connected with the first conductive part, a plurality of first conductive parts is provided, a first interval is provided between adjacent conductive members and a second interval is provided between adjacent first conductive parts, the first interval is different from the second interval. |
| Claim: | 19. A display panel, comprising: a display area having a plurality of pixel units, comprising a foldable area as well as a first display area and a second display area located at opposite sides of the foldable area; a peripheral area located at at least one side of the display area; a barrier layer located on a base substrate; a conductive member arranged at one side of the barrier layer facing away from the base substrate, a length of the conductive member in an extending direction of the conductive member being larger than a width of the conductive member in a direction intersecting with the extending direction; the conductive member comprising a first conductive sub-layer, a second conductive sub-layer and a third conductive sub-layer stacked in sequence; the first conductive sub-layer being closer to the base substrate than the third conductive sub-layer; and a first conductive part, the first conductive part and the conductive member being arranged in a same layer and made of a same material, wherein a conductivity of the first conductive sub-layer is smaller than that of the second conductive sub-layer, a thickness of the first conductive sub-layer is smaller than that of the second conductive sub-layer, and a melting point of the third conductive sub-layer is larger than that of the second conductive sub-layer, wherein the second conductive sub-layer comprises a first surface close to the first conductive sub-layer and a second surface close to the third conductive sub-layer, the first surface and the second surface are arranged opposite to each other, the third conductive sub-layer protrudes from the second surface along a width direction of the conductive member, and the width direction intersects with the extending direction of the conductive member, and wherein the first conductive part is located in the display area, and the conductive member is located in the peripheral area and is electrically connected to the first conductive part. |
| Claim: | 20. A display panel, comprising: a display area having a plurality of pixel units; a peripheral area located at at least one side of the display area; a transparent area, located at one side of the peripheral area away from the display area or surrounded by the display area; a barrier layer located on a base substrate; a conductive member arranged at one side of the barrier layer facing away from the base substrate, the length of the conductive member in its extending direction is larger than the width of the conductive member in the direction intersecting with the extending direction, and the conductive member includes a first conductive sub-layer, a second conductive sub-layer and a third conductive sub-layer stacked in sequence, wherein the first conductive sub-layer is closer to the base substrate than the third conductive sub-layer; and a first conductive part, the first conductive part and the conductive member being arranged in a same layer and made of a same material, wherein a conductivity of the first conductive sub-layer is smaller than that of the second conductive sub-layer, a thickness of the first conductive sub-layer is smaller than that of the second conductive sub-layer, and a melting point of the third conductive sub-layer is larger than that of the second conductive sub-layer, wherein the second conductive sub-layer comprises a first surface close to the first conductive sub-layer and a second surface close to the third conductive sub-layer; the first surface and the second surface are arranged opposite to each other; the third conductive sub-layer protrudes from the second surface along a width direction of the conductive member; and the width direction intersects with the extending direction of the conductive member, and wherein the first conductive part is located in the display area, and the conductive member is located in the peripheral area and is electrically connected to the first conductive part. |
| Patent References Cited: | 10394098 August 2019 Wang 2005/0056837 March 2005 Ohtani et al. 2009/0173743 July 2009 Yu et al. 2013/0207111 August 2013 Yamazaki 2017/0317156 November 2017 Kim 2017/0345365 November 2017 Li 2018/0120997 May 2018 Moon et al. 2019/0171318 June 2019 Ryu et al. 2021/0066559 March 2021 Zhang 2021/0266154 July 2021 Ban et al. 2021/0288282 September 2021 Kim 106887424 June 2017 109742121 May 2019 110462830 November 2019 110518020 November 2019 111341826 June 2020 3480853 May 2019 2015-50374 March 2015 |
| Other References: | Extended European Search Report from European Patent Application No. 21798254.5 dated Feb. 13, 2023. cited by applicant |
| Primary Examiner: | Menz, Douglas M |
| Attorney, Agent or Firm: | Dilworth & Barrese, LLP. Musella, Esq., Michael J. |
| رقم الانضمام: | edspgr.12178102 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |