Electronic device and display apparatus

Patent metadata

Field	Value
Publication number	US-12469952-B2
Application number	US-202318227301-A
Country	US
Kind code	B2
Filing date	Jul 27, 2023
Priority date	Jan 28, 2021
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

An electronic device and a display apparatus are disclosed. The display apparatus includes a Near Field Communication (NFC) module and a backlight module. The NFC module includes an NFC coil and an NFC ferrite. The backlight module includes a first insulation layer and a brightening layer that are superposed sequentially. The NFC coil is disposed on the brightening layer and is in the first insulation layer. The NFC ferrite is disposed on a side of the first insulation layer away from the brightening layer.

First claim

What is claimed is:

1 . A display apparatus, comprising a Near Field Communication (NFC) module and a backlight module, wherein:
the NFC module comprises an NFC coil and an NFC ferrite; the backlight module comprises a first insulation layer and a brightening layer that are superposed sequentially; and the NFC coil is disposed on the brightening layer and is in the first insulation layer, and the NFC ferrite is disposed on a side of the first insulation layer away from the brightening layer, wherein the NFC coil is partially disposed in a display region and partially disposed in a non-display region of the backlight module, and the non-display region is disposed around the display region.

2 . The display apparatus according to claim 1 , wherein the NFC coil extends along an edge of the backlight module and forms a plurality of circles.

3 . The display apparatus according to claim 2 , wherein the backlight module further comprises a support frame, and the support frame is the NFC ferrite.

4 . The display apparatus according to claim 1 , wherein the NFC coil is transparent wire.

5 . The display apparatus according to claim 1 , wherein the NFC coil comprises a first coil end near a center of the backlight module and a second coil end near an edge of the backlight module, the display apparatus further comprises:
a first flexible printed circuit board, wherein a first end of the first flexible printed circuit board is connected to the edge of the backlight module and is electrically connected to the second coil end, and the first coil end is electrically connected to the first flexible printed circuit board through bridging wire.

6 . The display apparatus according to claim 5 , wherein the backlight module further comprises a light source component layer, and the light source component layer is disposed between the first insulation layer and the NFC ferrite and covers the bridging wire; and
the backlight module emits a first portion of light to the brightening layer.

7 . The display apparatus according to claim 6 , wherein the light source component layer comprises a light guide layer and a light source;
the light source is disposed on a side of the light guide layer, and the light source component layer is superposed on the first insulation layer through the light guide layer; and a light emitted by the light source is incident to the light guide layer, and the first portion of light is emitted to the brightening layer through the light guide layer.

8 . The display apparatus according to claim 7 , wherein the light source component layer further comprises a reflection shell,
wherein the reflection shell covers the light source and is disposed opposite to the light guide layer, and a reflection opening is disposed on a side of the reflection shell facing the light guide layer; and after being reflected by the reflection shell, the light emitted by the light source is incident to the light guide layer through the reflection opening.

9 . The display apparatus according to claim 7 , wherein the backlight module further comprises a reflection layer, and the reflection layer is superposed between the light source component layer and the NFC ferrite; and
the light guide layer emits a second portion of light to the reflection layer, and the second portion of light is emitted towards the first portion of light after passing through the reflection layer.

10 . The display apparatus according to claim 6 , wherein the backlight module further comprises a first protection layer, and the first protection layer is superposed between the first insulation layer and the light source component layer; and
a first portion of the bridging wire is disposed in the first insulation layer, and a second portion of the bridging wire is disposed in the first protection layer.

11 . The display apparatus according to claim 10 , wherein a first electrode slice and a second electrode slice are secured on a surface of the brightening layer facing the first insulation layer; and
insertion openings are formed between the first electrode slice and the first protection layer and between the second electrode slice and the first protection layer, the first end of the first flexible printed circuit board is inserted into the insertion opening and is electrically connected to the first electrode slice and the second electrode slice, the first coil end is electrically connected to the first electrode slice through the bridging wire, and the second coil end is electrically connected to the second electrode slice.

12 . The display apparatus according to claim 11 , wherein the first end of the first flexible printed circuit board is overlapped and secured on the first electrode slice and the second electrode slice, and a colloid is disposed between an end surface of the first protection layer and the first flexible printed circuit board.

13 . The display apparatus according to claim 11 , wherein the NFC coil, the first electrode slice, and the second electrode slice are disposed on a same layer.

14 . The display apparatus according to claim 10 , wherein the backlight module further comprises a diffusion layer, and the diffusion layer is superposed between the light source component layer and the first protection layer.

15 . An electronic device, comprising a display apparatus, wherein the display apparatus comprises a Near Field Communication (NFC) module and a backlight module, wherein:
the NFC module comprises an NFC coil and an NFC ferrite; the backlight module comprises a first insulation layer and a brightening layer that are superposed sequentially; and the NFC coil is disposed on the brightening layer and is in the first insulation layer, and the NFC ferrite is disposed on a side of the first insulation layer away from the brightening layer, wherein the NFC coil is partially disposed in a display region and partially disposed in a non-display region of the backlight module, and the non-display region is disposed around the display region.

16 . The electronic device according to claim 15 , wherein the NFC coil extends along an edge of the backlight module and forms a plurality of circles.

17 . The electronic device according to claim 15 , wherein the NFC coil is transparent wire.

18 . The electronic device according to claim 15 , wherein the NFC coil comprises a first coil end near a center of the backlight module and a second coil end near an edge of the backlight module, the display apparatus further comprises:
a first flexible printed circuit board, wherein a first end of the first flexible printed circuit board is connected to the edge of the backlight module and is electrically connected to the second coil end, and the first coil end is electrically connected to the first flexible printed circuit board through bridging wire.

19 . The electronic device according to claim 18 , wherein the backlight module further comprises a light source component layer, and the light source component layer is disposed between the first insulation layer and the NFC ferrite and covers the bridging wire; and
the backlight module emits a first portion of light to the brightening layer.

20 . The electronic device according to claim 19 , wherein the light source component layer comprises a light guide layer and a light source;
the light source is disposed on a side of the light guide layer, and the light source component layer is superposed on the first insulation layer through the light guide layer; and a light emit

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Yang Hao
• Duan Jincai

Classifications

• H04B5/26

  using coils · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• G02B6/0091

  of the light source relative to the light guide (G02B6/0021 takes precedence) · CPC title

• G02B6/0083

  Details of electrical connections of light sources to drivers, circuit boards, or the like · CPC title

• G02B6/0031

  Reflecting element, sheet or layer · CPC title