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CN-122018192-A - Display device and preparation method

CN122018192ACN 122018192 ACN122018192 ACN 122018192ACN-122018192-A

Abstract

The application provides a display device and a preparation method thereof, wherein the display device comprises a backlight unit, a display panel and a driving assembly, the backlight unit comprises a lamp panel provided with a first vertical through hole, a first conductive material is filled in the first vertical through hole to form a first conductive body electrically connected with the lamp panel, an interconnection part which at least extends to the surface of the lamp panel is arranged in the edge area of the display panel, a second vertical through hole is arranged in the interconnection part, a second conductive material is filled in the second vertical through hole to form a second conductive body, the second conductive body is respectively electrically connected with the display panel and the first conductive body, the driving assembly comprises a circuit board assembly and a driving chip, the circuit board assembly, the first conductive body and the second conductive body are arranged on one side of the lamp panel far away from the display panel and are connected together to form a signal transmission channel, and the driving chip is arranged on the signal transmission channel. The application solves the problem that the scheme adopted by the existing liquid crystal display panel has poor effect on the width reduction of the lower frame of the display panel.

Inventors

  • QIN YU
  • YE LIDAN

Assignees

  • 惠科股份有限公司

Dates

Publication Date
20260512
Application Date
20260414

Claims (13)

  1. 1. A display device, comprising: The backlight unit comprises a lamp panel (30), wherein a first vertical through hole (300) penetrating through the lamp panel (30) is formed in the lamp panel (30), a first conductive material is filled in the first vertical through hole (300) to form a first conductive body (31), and the lamp panel (30) is electrically connected with the first conductive body (31); A display panel, wherein an edge area of the display panel is provided with an interconnection part (41) which at least extends to the surface of the lamp panel (30), the interconnection part (41) is provided with a second vertical through hole (400) which penetrates through, the second vertical through hole (400) is filled with a second conductive material to form a second conductor (42), one end of the second conductor (42) is electrically connected with the display panel, and the other end of the second conductor (42) is electrically connected with the first conductor (31); the driving assembly comprises a circuit board assembly and a driving chip (70), the circuit board assembly is arranged on one side of the lamp panel (30) far away from the display panel, and the driving chip (70) is used for outputting driving signals; The circuit board assembly, the first conductor (31) and the second conductor (42) are connected together to form a signal transmission channel, the driving chip (70) is arranged on the signal transmission channel, and the signal transmission channel is used for transmitting the driving signals to the display panel.
  2. 2. The display device of claim 1, wherein the display device comprises a display device, The backlight unit further comprises a back plate (10) with a containing cavity (100), and the lamp panel (30) and the display panel are both arranged in the containing cavity (100); the side of interconnection portion (41) keeping away from accommodation chamber (100) is equipped with the mounting groove, the tank bottom of mounting groove has the opening, second electric conductor (42) follow the opening exposes, driver chip (70) set up in the mounting groove, driver chip (70) with second electric conductor (42) electricity is connected.
  3. 3. The display device according to claim 1 or 2, wherein, The lamp panel (30) comprises a first glass substrate (34) and an LED lamp (35) arranged on the first glass substrate (34), the first vertical through hole (300) is arranged on the first glass substrate (34), and the interconnection part (41) and the first glass substrate (34) are welded by laser; or the interconnection part (41) and the lamp panel (30) are adhered by a UV (ultraviolet) adhesive tape (302).
  4. 4. The display device according to claim 1 or 2, wherein, The second conductor (42) comprises a first protruding part (421) protruding out of one side surface of the interconnection part (41) facing away from the display panel, a first pit (311) is arranged on one side surface of the first conductor (31) facing towards the display panel, and the first protruding part (421) is positioned in the first pit (311); Or the first conductor (31) comprises a second protruding part (312) protruding from the side surface of the lamp panel (30) towards the display panel, a second pit (422) is arranged on the side surface of the second conductor (42) away from the display panel, and the second protruding part (312) is positioned in the second pit (422).
  5. 5. The display device according to claim 1 or 2, wherein, The interconnecting part (41) and the display panel are of an integrated structure; or the interconnecting part (41) and the lamp panel (30) are of an integral structure; Or one end of the interconnection part (41) is connected with the display panel, and the other end of the interconnection part (41) is connected with the lamp panel (30).
  6. 6. The display device according to claim 1 or 2, wherein, The display panel comprises an array substrate (40) and a color film substrate (50) arranged on one side of the array substrate (40) away from the lamp panel (30); The edge area of one side of the array substrate (40) facing away from the color film substrate (50) is provided with an interconnection part (41) at least extending to the surface of the lamp panel (30), and the second vertical through hole (400) penetrates through the array substrate (40) or penetrates through the array substrate (40) and the color film substrate (50).
  7. 7. The display device according to claim 1 or 2, wherein, The number of the first conductors (31) is plural, the number of the second conductors (42) is plural, and the plurality of the first conductors (31) and the plurality of the second conductors (42) are electrically connected in one-to-one correspondence; A plurality of third conductors (32) are embedded in the surface of one side, facing away from the display panel, of the lamp panel (30), and the third conductors (32) are electrically connected with the first conductors (31) in a one-to-one correspondence manner; The backlight unit further comprises a back plate (10), the back plate (10) comprises a bottom plate (11), the lamp panel (30) is arranged on the bottom plate (11), the bottom plate (11) is provided with an avoidance hole (110), the circuit board assembly comprises a PCB (61) and a connector (63) which are electrically connected with each other, at least one third conductor (32) is electrically connected with one connector (63), and the connector (63) is positioned in the avoidance hole (110).
  8. 8. The display device of claim 1, wherein the display device comprises a display device, The backlight unit further comprises a back plate (10), wherein the back plate (10) comprises a bottom plate (11), and the lamp panel (30) is arranged on the bottom plate (11); The base plate (11) is made of glass, the lamp panel (30) comprises a first glass substrate (34) and an LED lamp (35) arranged on the first glass substrate (34), and the first glass substrate (34) and the base plate (11) are bonded through laser welding or through a UV (ultraviolet) adhesive tape (302).
  9. 9. The display device of claim 8, wherein the display device comprises a display device, The circuit board assembly is embedded in one side surface of the bottom plate (11) facing the lamp panel (30), a third conductor (32) is embedded in one side surface of the lamp panel (30) facing away from the display panel, the third conductor (32) is electrically connected with the first conductor (31), and the circuit board assembly is electrically connected with the third conductor (32).
  10. 10. The display device of claim 9, wherein the display device comprises a display device, The circuit board assembly is located in an edge area of the bottom plate (11), the circuit board assembly is opposite to the third conductor (32), and the brightness of the LED lamp (35) corresponding to the edge area of the bottom plate (11) is smaller than the brightness of the rest LED lamps (35).
  11. 11. The display device according to claim 1 or 2, wherein, The backlight unit further comprises a back plate (10) and first support columns (20), wherein the back plate (10) comprises a bottom plate (11), the first support columns (20) are connected to the bottom plate (11), and the first support columns (20) are used for supporting the display panel; Foam rubber (21) is arranged on the surface of one side of the first support column (20) facing away from the bottom plate (11); And/or the side surface of the first support column (20) is connected with an extension plate (22), and one side surface of the extension plate (22) facing away from the bottom plate (11) is flush with one side surface of the first support column (20) facing away from the bottom plate (11).
  12. 12. The display device according to claim 1 or 2, wherein, A plurality of second support columns (33) are arranged on the lamp panel (30); The display device further comprises an optical film assembly (80), and the optical film assembly (80) is arranged on the second support column (33).
  13. 13. A method of manufacturing a display device, comprising: A first vertical through hole (300) is formed in the lamp panel (30), and the first vertical through hole (300) penetrates through the lamp panel (30); Filling a first conductive material in the first vertical through hole (300) to form a first conductive body (31), wherein the first conductive body (31) is electrically connected with the lamp panel (30); a second vertical through hole (400) is formed in an interconnection part (41) in the edge area of the display panel, and the second vertical through hole (400) penetrates through the interconnection part (41); filling a second conductive material in the second vertical through hole (400) to form a second conductive body (42), wherein the second conductive body (42) is electrically connected with the display panel; Laminating the lamp panel (30) formed with a first conductor (31), an optical film assembly (80), and the display panel electrically connected to the second conductor (42) so that the first conductor (31) is electrically connected to the second conductor (42); A circuit board assembly is arranged on one side, far away from the display panel, of the lamp panel (30), and the circuit board assembly, the first conductor (31) and the second conductor (42) are connected together to form a signal transmission channel; And arranging a driving chip (70) on the signal transmission channel, wherein the driving chip (70) is used for outputting a driving signal, and the signal transmission channel is used for transmitting the driving signal to the display panel.

Description

Display device and preparation method Technical Field The application relates to the technical field of display, in particular to a display device and a preparation method. Background With the continuous improvement of the requirements of electronic devices such as a display, a tablet personal computer and the like on the screen ratio, the realization of extremely narrow-frame and even frame-free display becomes a key of technical development. The conventional lcd panel adopts a COF (chip on film) scheme of the lower frame of the display, and compared with a conventional COG (chip on glass) design, the conventional lcd panel reduces the width of the lower frame and improves the screen ratio. However, COF schemes also have a number of problems. For example, a chip (IC, INTEGRATED CIRCUIT) is bound (bonded) to an FPC (Flexible Printed Circuit, i.e., a flexible circuit board), and after the whole FPC is bent, the chip is located on the lower surface of the backlight module, so that the bent FPC needs to be shielded by the outer frame, and the width of the lower frame is not good. Disclosure of Invention The embodiment of the application provides a display device and a preparation method thereof, which solve the problem that the scheme for reducing the width of a lower frame adopted by the existing liquid crystal display panel has poor effect on the reduction of the width of the lower frame of the display panel. The display device comprises a backlight unit, a display panel and a driving assembly, wherein the backlight unit comprises a lamp panel, a first vertical through hole penetrating through the lamp panel is formed in the lamp panel, a first conductive material is filled in the first vertical through hole to form a first conductive body, the lamp panel is electrically connected with the first conductive body, an interconnection part extending to at least the surface of the lamp panel is arranged in the edge area of the display panel, a second vertical through hole penetrating through the interconnection part is formed in the interconnection part, a second conductive material is filled in the second vertical through hole to form a second conductive body, one end of the second conductive body is electrically connected with the display panel, the other end of the second conductive body is electrically connected with the first conductive body, the driving assembly comprises a circuit board assembly and a driving chip, the circuit board assembly is arranged on one side, far away from the display panel, of the lamp panel, the driving chip is used for outputting driving signals, the circuit board assembly, the first conductive body and the second conductive body are connected together to form a second conductive body, one end of the second conductive body is electrically connected with the display panel, one end of the second conductive body is electrically connected with the driving chip, and the driving chip is used for transmitting signals to the display panel. In some embodiments, the backlight unit further comprises a back plate with a containing cavity, the lamp panel and the display panel are both arranged in the containing cavity, a mounting groove is formed in the side surface, away from the containing cavity, of the interconnection part, the driving chip is arranged in the mounting groove, and the driving chip is electrically connected with the second electric conductor. In some embodiments, the lamp panel includes a first glass substrate and an LED lamp disposed on the first glass substrate, the first vertical through hole is disposed on the first glass substrate, and the interconnection portion and the first glass substrate are welded by laser. In some embodiments, the interconnection portion and the lamp panel are bonded by UV-curable adhesive tape. In some embodiments, the second conductor includes a first protrusion protruding from a side surface of the interconnection portion facing away from the display panel, and a side surface of the first conductor facing toward the display panel is provided with a first recess, and the first protrusion is located in the first recess. In some embodiments, the first conductor includes a second protruding portion protruding from a side surface of the lamp panel facing the display panel, and a side surface of the second conductor away from the display panel is provided with a second recess, and the second protruding portion is located in the second recess. In some embodiments, the interconnect is integrally formed with the display panel; or the interconnecting part and the lamp panel are of an integrated structure; Or one end of the interconnection part is connected with the display panel, and the other end of the interconnection part is connected with the lamp panel. In some embodiments, the display panel includes an array substrate and a color film substrate disposed on a side of the array substrate facing away from the lamp panel; The edge area of one side of