Display device

A technology for a display device and a display area, which is applied to identification devices, antenna supports/mounting devices, antennas, etc., can solve problems such as weakening and affecting NFC performance, and achieve high magnetic field strength and guarantee NFC performance.

Pending Publication Date: 2022-07-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application expects to provide a display device to solve the problem in the prior art that the magnetic field strength on the front of the display panel will be greatly weakened, seriously affecting the performance of NFC

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0047] like figure 1 , figure 2 As shown, the display device includes a casing 1 and a display panel 7; the casing 1 includes a bottom wall 12 and a side wall 11 arranged around the edge of the bottom wall 12, the bottom wall 12 and the side wall 11 An installation cavity 13 having an opening is enclosed, and the display panel 7 is disposed in the opening; the installation cavity 13 can install components such as the lithium battery 8 and the NFC IC 14 . The fan-out area 70 of the display panel 7 is connected with the flexible circuit board 50, the front of the display panel 7 covers the cover plate 10, the cover plate 10 can be a glass cover plate, and the back of the display panel 7 is bonded with SCF (Super Cleaner) through the adhesive layer 6. Foam; ultra clean foam) layer 5, the material of the adhesive layer 6 can be but not limited to BF glue (nitrile butadiene rubber), the side of the SCF layer 5 away from the adhesive layer is provided with an IC (Integrated Circui...

example 2

[0051] like image 3 , Figure 4 As shown, the main difference between Example 2 and Example 1 is that the NFC antenna 2 is provided in the display panel 7 .

[0052] Specifically, the display panel 7 includes a display area AA and a non-display area BB surrounding the display area AA; the display area AA has an under-screen camera light-transmitting area C; wherein, the under-screen camera light-transmitting area C and its surrounding areas The stacked structure includes a substrate 31 , a first PI layer 32 , a barrier layer 33 , a second PI layer 34 , a first planarization layer 35 , a first metal wiring layer 42 , a second planarization layer 36 , and a passivation layer 37 arranged in sequence , a first transparent wiring layer, a third planarization layer 38 , a second transparent wiring layer and a fourth planarization layer 39 . The first transparent wiring layer and the second transparent wiring layer serve as the first conductive layers 41 and 42, respectively.

[...

example 3

[0057] like Figure 5 , Image 6 As shown, the main difference between Example 3 and Example 1 is that the NFC antenna 2 is provided in the display panel 7.

[0058] Specifically, the display panel 7 includes a display area AA and a non-display area BB surrounding the display area AA; the wires 21 of the NFC antenna 2 are arranged along the edge of the display area AA.

[0059] The stacked structure of the display panel 7 includes a substrate 31 , a first PI layer 32 , a barrier layer 33 , a first metal wiring layer, a second PI layer 34 , a first planarization layer 35 , and a second metal wiring layer 47 , which are arranged in sequence. , a passivation layer 37 , a second planarization layer 36 , a third metal wiring layer 46 , an optical adhesive layer 43 , a touch electrode layer 45 and an encapsulation layer 44 .

[0060] The first metal wiring layer serves as one of the first conductive layers 42 . The first metal wiring layer includes a conductive pattern 421 and th...

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PUM

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Abstract

The invention discloses a display device. The display device comprises a shell and a display panel, the shell comprises a bottom wall and a side wall arranged around the edge of the bottom wall, a mounting cavity with an opening is defined by the bottom wall and the side wall, and the display panel is arranged in the opening; a fan-out area of the display panel is connected with a flexible circuit board; at least any one of the inner side of the side wall, the interior of the display panel and the interior of the flexible circuit board is provided with an NFC antenna, and the NFC antenna comprises more than two wires which are connected in parallel. According to the scheme, the NFC antenna adopts more than two wires which are mutually connected in parallel, so that higher magnetic field intensity can be obtained, a magnetic field still has enough magnetic field intensity after penetrating through the front surface of the display panel, and the NFC performance is guaranteed.

Description

technical field [0001] The present invention generally relates to the field of display technology, and in particular, to a display device. Background technique [0002] NFC (Near Field Communication; Near Field Communication) is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission between electronic devices. This technology is evolved from RFID (Radio Frequency Identification; Radio Frequency Identification). , and backward compatible with RFID. [0003] At present, NFC has been widely used in display devices such as mobile terminals and wearables. The NFC antenna is generally in a series structure and is arranged between the display panel of the display device and the bottom of the casing. The magnetic field emitted by the NFC antenna to the front of the device , it needs to pass through the metal backplane of the display panel and the electromagnetic shielding layer, and the magnetic field strength on the ...

Claims

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Application Information

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IPC IPC(8): G09F9/30H01Q1/22H01Q7/00
CPCG09F9/30H01Q1/22H01Q7/00
Inventor 周鑫李振鲍建东陈立强傅景杰丁彦红秦少杰刘斌卢玉群杨鸣
Owner BOE TECH GRP CO LTD
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