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Sensing layer of display module, display module and touch screen

A technology for display modules and sensing layers, applied in the field of display modules, touch screens, and sensing layers, which can solve problems such as the number of channels and the proportion of screens, and achieve the effect of large screen proportions, reducing the number of outgoing lines, and reducing the space at the bottom

Active Publication Date: 2022-01-21
SHANGHAI MORUAN COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the touch wiring at the bottom of the display module in the screen of the smart device in the prior art adopts a pure self-capacitance scheme, and there are too many channels so that it is impossible to reduce the bottom space by reducing the number of channels. The defect of the demand for a larger screen-to-body ratio is to provide a sensing layer for a display module, a display module, and a touch screen

Method used

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  • Sensing layer of display module, display module and touch screen
  • Sensing layer of display module, display module and touch screen
  • Sensing layer of display module, display module and touch screen

Examples

Experimental program
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Embodiment 1

[0042] Such as figure 1 As shown, the sensing layer of the display module in this embodiment includes a sensing block layer 1 and a wiring layer 2 , and the wiring layer 2 is disposed on the surface of the sensing block layer 1 .

[0043] Such as figure 2 As shown, the sensing block layer 1 includes several sensing blocks 11 and several driving blocks 12 .

[0044] Among them, several sensing blocks 11 are arranged according to M rows and N columns, a driving block 12 is arranged between the sensing blocks 11 of two adjacent columns, and a driving block 12 is arranged outside the sensing block 11 of the first column or the Nth column.

[0045] A column of sensing blocks 11 corresponds to a driving block 12 , and the corresponding driving blocks 12 of each column of sensing blocks 11 are different.

[0046] The wiring layer 2 includes several first connecting wires 21 and several second connecting wires 22 .

[0047] Wherein, the N sensing blocks 11 in the same row are all ...

Embodiment 2

[0050] Such as image 3 As shown, the sensing layer of the display module of this embodiment is a further improvement on Embodiment 1, specifically:

[0051] The outermost columns on both sides of the sensing layer 1 are the first column L1 and the second column L2 respectively;

[0052] The sensing blocks in the first column L1 and / or the second column L2 are provided with a first wiring slot a, and the first connecting wires 21 all come out of the first wiring slot a.

[0053] In this embodiment, the principle of reducing the number of outgoing lines of the induction layer is as follows:

[0054] For the induction layer of the existing display module, such as Figure 4 with Figure 5 As shown, taking the sensing layer including 36 sensing blocks A set in 6 rows and 6 columns as an example, the number of outgoing lines at the bottom of the sensing layer is 6x6=36; and as image 3 As shown, in this embodiment, the number of outgoing wires at the bottom of the sensing layer...

Embodiment 3

[0062] Such as Figure 7 As shown, the sensing layer of the display module of this embodiment is a further improvement on Embodiment 2, specifically:

[0063] The sensing blocks in the first column L1 and the second column L2 are the first sensing blocks, and the other sensing blocks in the sensing block layer 1 are the second sensing blocks.

[0064] Wherein, the width of the second sensing block is twice the width of the first sensing block.

[0065] At this time, for the first driving block between the second sensing blocks, the first driving block forms capacitance with the second sensing block of half the width on the adjacent two sides respectively; The other second driving blocks, each second driving block forms a capacitor with the first sensing block on one side and the second sensing block with half the width on the other side.

[0066] Specifically, such as Figure 8 As shown, RX1a-RX6a, RX1b-RX6b represent the first sensing block, RX1-RX6 represent the second se...

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Abstract

The invention discloses a sensing layer of a display module, a display module and a touch screen. The sensing layer includes a sensing block layer and a wiring layer; the sensing block layer includes several sensing blocks and several driving blocks; Arranged in M ​​rows and N columns, a driving block is set between the sensing blocks of two adjacent columns; a column of sensing blocks corresponds to a driving block, and several driving blocks are different; the wiring layer includes several first connecting wires and several second connecting wires ; The N sensing blocks in the same row are all connected to the same sensing channel, and each driving block is connected to a different driving channel. The present invention replaces the self-capacitance sensing pattern in the sensing layer of the display module of the existing smart device with a mutual capacitive pattern, without reducing the touch experience and touch accuracy, and reduces the number of outgoing lines of the sensing layer , reducing the space at the bottom of the display module of the smart device, so as to achieve a larger screen-to-body ratio and meet the design requirements.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a sensing layer of a display module, a display module and a touch screen. Background technique [0002] With the rapid development of electronic technologies (such as smart watches, smart phones, tablet computers, notebook computers, all-in-one computers, robots, etc.), people have higher and higher requirements for the screen ratio of the screen of smart devices. However, existing smart devices need to take up a lot of space because the bottom of the display module of the touch screen needs to lead out the internal lines. Among them, the space at the bottom of the display module includes display wiring and touch wiring, and the touch wiring is purely self-contained. In this solution, there are many sensing channels and driving channels, and the bottom space cannot be reduced by reducing the number of channels. Contents of the invention [0003] The technical problem to be solv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/0412G06F3/044
Inventor 胡赛峰
Owner SHANGHAI MORUAN COMM TECH
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