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Metal bridge structure with shadow elimination effect and touch screen comprising metal bridge structure

A metal bridge and touch screen technology, which is applied in the field of metal bridge structures and touch screens, can solve problems such as brightness, obvious bridge points, and narrow application range

Active Publication Date: 2020-10-20
YICHANG NANBO DISPLAY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metal bridge points of metal bridge structure products can be easily seen by naked eyes, and the appearance effect is not good. The bridge points are obvious and shiny, which affects the visual effect
Especially like consumer electronic products, which need to be used at close range, it will affect the use effect
This type of product has a narrow application range, and can only be used on products that do not require high appearance effects, or products that are usually used far away from the eyes, and are rarely used on consumer electronics products

Method used

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  • Metal bridge structure with shadow elimination effect and touch screen comprising metal bridge structure
  • Metal bridge structure with shadow elimination effect and touch screen comprising metal bridge structure
  • Metal bridge structure with shadow elimination effect and touch screen comprising metal bridge structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 4 As shown, a metal bridge structure with shadow elimination effect, the structure includes three folding lines 1, two adjacent folding lines are connected end to end to form two bending parts, and have two free ends, the free ends are respectively connected From the electrodes 2 at both ends of the metal bridge structure, the shape of the entire metal bridge resembles a "Z" shape when viewed from above. The metal bridge includes CuNi / Cu / CuNiTi three-layer stacked metal film layer, the surface metal film layer is blackened, the reflectivity is below 35%, the surface resistance is 0.6Ω, and the width of the metal bridge is 10 μm.

[0036] The preparation of the metal bridge structure with shadow elimination effect specifically includes the following steps:

[0037] 1) CuNi / Cu / CuNiTi three-layer metal film is sequentially plated on the surface of the product that needs to be equipped with a metal bridge structure by magnetron sputtering. When magnetron sp...

Embodiment 2

[0040] Embodiment 2: as Figure 5 As shown, a metal bridge structure with shadow elimination effect, the structure includes 5 fold lines, the end-to-end connection between two adjacent fold lines forms a total of 4 bending parts, and has two free ends, the free ends are respectively connected to Electrodes at both ends of the metal bridge structure. The metal bridge includes a metal film layer stacked in three layers of MoAlMo, the surface metal film layer is blackened, the reflectivity is 30%, the surface resistance is 0.4 ohm, and the width of the metal bridge is 10 μm. The preparation method is the same as that in Example 1. When magnetron sputtering the Mo metal film, a certain amount of nitrogen is filled in the sputtering gas, wherein the volume ratio of nitrogen to the sputtering gas is 25%.

Embodiment 3

[0041] Embodiment 3: A metal bridge structure with shadow elimination effect, the structure includes 4 fold lines, the end-to-end connection between two adjacent fold lines forms 3 bending parts in total, and has two free ends, the free ends are respectively connected to the electrodes at both ends of the metal bridge structure. The metal bridge includes a CuNi / Cu / CuNi three-layer stacked metal film layer, the surface metal film layer is blackened, the reflectivity is 35%, the surface resistance is 0.6 ohm, and the metal bridge width is 15 μm. The preparation method is the same as that in Example 1. A certain amount of oxygen is filled in the sputtering gas when the CuNi metal film is magnetron sputtered, and the volume ratio of nitrogen to the sputtering gas is 10%.

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Abstract

The invention discloses a metal bridge structure with a shadow elimination effect and a touch screen comprising the same, the structure comprises a plurality of folding lines, two adjacent folding lines are connected end to end to form a bending part, and the plurality of folding lines are connected to form a metal bridge with two free ends; the metal bridge structure comprises three stacked metalfilm layers, the surface metal film layer is blackened, and the reflectivity of the surface metal film layer is lower than 35%. The invention further relates to a touch screen comprising the structure. According to the metal bridge structure, the advantages of a conventional ITO bridge and a conventional metal bridge are combined, under the condition that a film layer is not increased, the metalbridge with a certain shape is designed so that the effect of shadow elimination of metal bridge points is achieved, the appearance effect of a metal bridge scheme product is improved, and the application range of the metal bridge scheme product is wider.

Description

technical field [0001] The invention belongs to the field of touch display, and in particular relates to a metal bridge structure with shadow elimination effect and a touch screen comprising the structure. Background technique [0002] Touch screen products have double-sided structure, single-sided bridge structure, and low-end caterpillar structures. The design of double-sided structure touch screen products is mainly applied for patents by Apple, and is applied to Apple products or products authorized by Apple. The caterpillar structure can only realize simple touch and gestures, and is mainly used in low-end products. Single-sided bridge structure products are the mainstream in the market, including consumer electronics, industrial control products, and vehicle-mounted products. The single-sided bridge structure is divided from the bridging membrane material, and there are ITO bridges (such as figure 1 shown) and metal bridge structures (such as figure 2 shown). The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0412G06F2203/04103
Inventor 傅志敏黄勇祥张莉郑建万秦重虎汪晚红蒋雨彬
Owner YICHANG NANBO DISPLAY
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