CN-121742071-B - Display screen and spliced display device

Abstract

The application belongs to the technical field of display, and particularly relates to a display screen and a spliced display device, wherein the display screen is provided with a display area and a frame area positioned at the edge of the display area, the display screen comprises a first substrate, a second substrate and a deformation supporting structure, the second substrate and the first substrate are arranged in a box-to-box mode, the deformation supporting structure is arranged in the frame area and comprises deformation supporting columns, a first magnetic pole and a second magnetic pole which are oppositely arranged, the first magnetic pole is formed on the first substrate, the second magnetic pole is formed on the second substrate, the deformation supporting columns are formed on the first substrate and are positioned between the first magnetic pole and the second magnetic pole, and magneto-rheological materials are packaged in the deformation supporting columns, wherein the first magnetic pole and the second magnetic pole are configured to generate a target magnetic field according to target pressure received by the frame area, and magnetic particles in the magneto-rheological materials are configured to be arranged under the action of the target magnetic field to form a target supporting body. The display screen and the spliced display device provided by the application can improve the stability of the spliced display device.

Inventors

• LI YAO
• XU PEI

Assignees

• 惠科股份有限公司

Dates

Publication Date

20260508

Application Date

20260213

Claims (9)

1. 1. A display screen having a display area and a border area at an edge of the display area, the display screen comprising: a first substrate; A second substrate arranged opposite to the first substrate; The deformation support structure is arranged in the frame area and comprises a deformation support column, a first magnetic pole and a second magnetic pole, wherein the first magnetic pole and the second magnetic pole are oppositely arranged, the first magnetic pole is formed on the first substrate, the second magnetic pole is formed on the second substrate, the deformation support column is formed on the first substrate and is positioned between the first magnetic pole and the second magnetic pole, and magneto-rheological materials are encapsulated in the deformation support column; the deformation detection unit is arranged in the frame area and is electrically connected with the first magnetic pole and the second magnetic pole, and the deformation detection unit is configured to detect target pressure born by the frame area; Wherein the first and second poles are configured to generate a target magnetic field in accordance with a target pressure experienced by the rim region, the magnetic particles within the magnetorheological material being configured to align under the target magnetic field to form a target support.
2. 2. The display screen according to claim 1, wherein the deformation detection unit includes: A first electrode and a second electrode which are oppositely arranged, wherein one of the first electrode and the second electrode is formed on the first substrate and is arranged at intervals with the first magnetic pole, and the other one of the first electrode and the second electrode is formed on the second substrate and is arranged at intervals with the second magnetic pole; The detection column comprises a column body and a conductive layer, wherein a first end of the column body is formed on the first electrode, the conductive layer is connected with the first electrode and wraps a second end of the column body, and the surface, close to the second electrode, of the conductive layer is a conductive cambered surface and is arranged at intervals with the second electrode; The conductive cambered surface can be in contact with the second electrode when the frame area is pressed, so that current is generated between the first electrode and the second electrode, and the current magnitude between the first electrode and the second electrode is configured to be related to the target pressure magnitude of the frame area.
3. 3. The display screen of claim 2, wherein the deformation detection unit further comprises: a detection circuit, connected to the first electrode and the second electrode, configured to detect a magnitude of a current between the first electrode and the second electrode; And the control circuit is connected with the detection circuit, the first magnetic pole and the second magnetic pole, is configured to determine the target pressure born by the frame area according to the magnitude of the current detected by the detection circuit, and is further configured to control the first magnetic pole and the second magnetic pole to generate a target magnetic field according to the target pressure.
4. 4. The display screen of claim 2, wherein the conductive layer comprises at least a graphene layer, and the outer surface of the pillar is surrounded by the graphene layer.
5. 5. The display screen according to claim 2, the display screen is characterized by further comprising: The frame support columns are arranged in the frame area and located between the first substrate and the second substrate, wherein the length of each frame support column is larger than that of each detection column, and the length of each detection column is larger than that of each deformation support column.
6. 6. The display screen of claim 5, wherein the length of the detection column is greater than a first preset threshold and less than a second preset threshold, wherein the first preset threshold is a sum of a 4/3-fold segment difference and the length of the deformed support column, and the second preset threshold is a sum of a 3/2-fold segment difference and the length of the deformed support column, the segment difference being obtained from a difference between the lengths of the border support column and the deformed support column.
7. 7. The display screen of claim 1, wherein the volume of the magnetorheological material filled in the deformed support post is any value from 1/2 to 1/3 of the total volume of the deformed support post.
8. 8. The display screen according to claim 1, the display screen is characterized by further comprising: the frame support column is arranged in the frame area and is positioned between the first substrate and the second substrate; the display main support column and the display secondary support column are arranged in the display area and are arranged between the first substrate and the second substrate; The length of the deformation support column is larger than that of the display secondary support column, the length of the display main support column is larger than that of the display secondary support column, and the supporting force of the display main support column is larger than that of the frame support column.
9. 9. A tiled display device, characterized in that the tiled display device comprises: the display screen of any one of claims 1-8, said display screen being provided in at least two and spliced to each other; and the compensation display panel is arranged in the joint area adjacent to the display screen and covers the frame area adjacent to the display screen.

Description

Display screen and spliced display device Technical Field The disclosure belongs to the technical field of display, and particularly relates to a display screen and a spliced display device. Background The Liquid crystal display panel (Liquid CRYSTAL DISPLAY, LCD) is applied to outdoor display by virtue of low cost and high resolution, and a tiled display device is generally obtained by stitching a plurality of Liquid crystal display panels, so as to realize large-screen display. However, in the tiled display device, the frame area of the liquid crystal display panel is easily deformed during the display process, resulting in a decrease in the stability of the LCD display panel. Therefore, how to improve the stability of the tiled display device has become a current urgent problem to be solved. Disclosure of Invention The application provides a display screen and a spliced display device, which solve the problem of poor stability of the spliced display device. In a first aspect, the application provides a display screen, which comprises a display area and a frame area positioned at the edge of the display area, wherein the display screen comprises a first substrate, a second substrate and a deformation support structure, the second substrate is arranged opposite to the first substrate, the deformation support structure is arranged at the frame area and comprises deformation support columns, a first magnetic pole and a second magnetic pole which are oppositely arranged, the first magnetic pole is formed on the first substrate, the second magnetic pole is formed on the second substrate, the deformation support columns are formed on the first substrate and are positioned between the first magnetic pole and the second magnetic pole, and a magneto-rheological material is packaged inside the deformation support columns, wherein the first magnetic pole and the second magnetic pole are configured to generate a target magnetic field according to target pressure born by the frame area, and magnetic particles in the magneto-rheological material are configured to be arranged under the action of the target magnetic field to form a target support body. Optionally, the display screen further comprises a deformation detection unit, wherein the deformation detection unit is arranged in the frame area and is electrically connected with the first magnetic pole and the second magnetic pole, and the deformation detection unit is configured to detect target pressure born by the frame area. The deformation detection unit comprises a first electrode and a second electrode which are oppositely arranged, wherein one electrode is formed on the first substrate and is arranged with the first magnetic pole at intervals, the other electrode is formed on the second substrate and is arranged with the second magnetic pole at intervals, the detection column comprises a column body and a conductive layer, the first end of the column body is formed on the first electrode, the conductive layer is connected with the first electrode and wraps the second end of the column body, the surface of the conductive layer, which is close to the second electrode, is a conductive arc surface and is arranged with the second electrode at intervals, the conductive arc surface can be in contact with the second electrode when the frame area is pressed, so that current is generated between the first electrode and the second electrode, and the current magnitude between the first electrode and the second electrode is configured to be related to the target pressure magnitude born by the frame area. Optionally, the deformation detection unit further comprises a detection circuit connected with the first electrode and the second electrode and configured to detect the current magnitude between the first electrode and the second electrode, and a control circuit connected with the detection circuit, the first magnetic pole and the second magnetic pole and configured to determine the target pressure born by the frame area according to the current magnitude detected by the detection circuit and further configured to control the first magnetic pole and the second magnetic pole to generate a target magnetic field according to the target pressure. Optionally, the conductive layer at least includes a graphene layer, and an outer surface of the pillar is wrapped by the graphene layer. Optionally, the display screen further comprises a frame support column arranged in the frame area and located between the first substrate and the second substrate, wherein the length of the frame support column is larger than that of the detection column, and the length of the detection column is larger than that of the deformation support column. Optionally, the length of the detection column is greater than a first preset threshold and less than a second preset threshold, wherein the first preset threshold is the sum of a 4/3-time segment difference value and the length of the deformation suppor