WO2016101168A1 - Compound lens applied to handheld terminal device - Google Patents

Abstract

Provided is a compound lens applied to a handheld terminal device. The compound lens comprises: a resin layer (210); a toughened glass layer (220); an optical cement layer (230), located between the resin layer (210) and the toughened glass layer (220) and used for gluing the resin layer (210) and the toughened glass layer (220); and a silk screen printing ink layer (240), located between the optical cement layer (230) and the resin layer (210) or located between the optical cement layer (230) and the toughened glass layer (220). The compound lens satisfies lightness and thinness requirements, and at the same time has the characteristics that the compound lens has the strength and hardness of the toughened glass and the flexibility and shock resistance of a resin material. When the compound lens is mounted on the handheld terminal device, the resin layer is located on an outer surface and the toughened glass layer is located on an inner surface. The resin layer located on the outer surface can absorb energy generated during the fall and shock, and the toughened glass layer located on the inner surface can improve the deformation resistance performance and improve the strength performance of the compound lens.

Description

Composite lens applied to handheld terminal equipment

[Technical Field]

The present invention relates to the technical field of handheld terminal lenses, and in particular to a composite lens applied to a handheld terminal device.

 【Background technique】

The development trend of handheld terminals (such as walkie-talkies, PDAs, POS machines, etc.) is smaller, thinner, and lighter in quality, while the reliability requirements for drop resistance and impact resistance are also increasing. As the external protection device for the display of the handheld terminal, the lens is also required to be thinner and thinner, and also needs to meet the reliability requirements such as drop and impact.

The lenses currently used in handheld terminals are resin sheet lenses and tempered glass lenses:

Resin sheet lens: The material is PMMA or PMMA+PC, which has good resistance to drop and impact. However, the material is soft, and the thickness needs to be 1.5mm or more to be pressed against the liquid crystal display without being deformed by pressure. (Color distortion occurs when the LCD screen is pressed).

Tempered glass lens: The material is tempered glass (chemical tempering) with good strength and surface hardness. Due to the instability of chemical tempering, even Corning's tempered glass has a certain rate of falling and breaking.

 [Summary of the Invention]

The embodiment of the invention provides a composite lens to solve the technical problem that the conventional lens in the prior art cannot balance the thinness, high hardness and strong impact resistance.

In order to solve the above problems, an embodiment of the present invention provides a composite lens applied to a handheld terminal device, the composite lens comprising a laminated resin layer and a tempered glass layer, wherein the composite lens is mounted on the handheld terminal device The resin layer is on the outer surface, and the tempered glass layer is on the inner surface.

According to a preferred embodiment of the present invention, the composite lens further includes an optical adhesive layer disposed between the resin layer and the tempered glass layer for bonding the resin layer and the tempered glass layer.

According to a preferred embodiment of the present invention, the composite lens further includes a screen printing ink layer disposed between the optical adhesive layer and the resin layer or between the optical adhesive layer and the tempered glass layer, the silk screen printing The ink layer is used for silk screen markings or borders.

According to a preferred embodiment of the present invention, the screen printing ink layer is annularly disposed on the inner circumference of the composite lens or strip-shapedly disposed inside the composite lens.

According to a preferred embodiment of the invention, the resin layer has a thickness of from 0.3 to 0.8 mm.

According to a preferred embodiment of the invention, the screen printing ink layer has a thickness of from 0.02 to 0.10 mm.

According to a preferred embodiment of the invention, the tempered glass layer has a thickness of from 0.3 to 1 mm.

According to a preferred embodiment of the invention, the optical adhesive layer has a thickness of 0.05 to 0.2 mm.

According to a preferred embodiment of the present invention, the resin layer is subjected to a non-bonding side hardening treatment, and the hardness after the treatment is greater than 3H.

The composite lens provided by the embodiment of the invention is applied to a handheld terminal device, including a walkie-talkie, a private digital terminal, and a POS machine.

Compared with the prior art, the composite lens provided by the present invention bonds the resin layer and the tempered glass layer with optical glue, so that the composite lens has the strength and hardness of the tempered glass as well as being light and thin. The flexibility and impact resistance of the resin material. In addition, when the composite lens is mounted on the handheld terminal device, the resin layer is located on the outer surface, and the tempered glass layer is located on the inner surface. The advantage of this arrangement is that the resin layer is located on the outer surface to absorb the energy of the drop and impact, and the tempered glass layer on the inner surface can improve the resistance and deformation properties of the composite lens.

 [Description of the Drawings]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

Figure 1 is a schematic view showing the structure of a preferred embodiment of the composite lens of the present invention;

Figure 2 is a schematic view showing the structure of another preferred embodiment of the composite lens of the present invention;

3 is a schematic view showing the structure of a composite lens of the present invention applied to a handheld terminal device.

 【detailed description】

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Please refer to FIG. 1. FIG. 1 is a schematic structural view of a preferred embodiment of a composite lens according to the present invention. The composite lens includes a resin layer 110 and a tempered glass layer 120 stacked on each other, wherein the composite lens is mounted on a handheld terminal device. The resin layer 110 is located on the outer surface, and the tempered glass layer 120 is located on the inner surface. The advantage of this arrangement is that the resin layer 110 is located on the outer surface to absorb the energy of the drop and impact, and the tempered glass layer 120 on the inner surface can improve the resistance and deformation properties of the composite lens.

Specifically, the thickness of the resin layer 110 may be set to be between 0.3 and 0.8 mm, such as 0.5 mm, and the thickness of the tempered glass layer 120 may be 0.3 to 1 mm, wherein the thickness of the resin layer 110 and the thickness of the tempered glass layer 130 are It can be specifically set according to the requirements of the impact strength and surface hardness of the device, and can be omitted from the range which can be understood by those skilled in the art.

Preferably, the composite lens further includes an optical adhesive layer 130 (OCA (Optically) disposed between the resin layer 110 and the tempered glass layer 120 for bonding the resin layer 110 and the tempered glass layer 120. Clear Adhesive) A special adhesive used to bond transparent optical components such as lenses. It has colorless and transparent, light transmittance of more than 90%, good cementation strength, can be cured at room temperature or medium temperature, and has characteristics of small curing shrinkage. The thickness of the optical adhesive layer 130 is generally 0.05-0.2 mm.

In addition, the non-adhesive side of the resin layer 110 can also be hardened so that the hardness after the treatment is greater than 3H, and the surface is prevented from being scratched easily during use.

The composite lens provided by the embodiment of the invention bonds the resin layer and the tempered glass layer by optical glue, so that the composite lens has the strength and hardness of the tempered glass and the flexibility of the resin material while satisfying the light and thin condition. And the characteristics of impact resistance.

Please refer to FIG. 2. FIG. 2 is a schematic structural view of another preferred embodiment of the composite lens of the present invention. The composite lens comprises a resin layer 210, a tempered glass layer 220, and an optical adhesive layer disposed between the resin layer 210 and the tempered glass layer 220. In addition to 230, a screen printing ink layer 240 is also included.

The thickness of the resin layer 210 can also be set to be between 0.3 and 0.8 mm, for example, 0.5 mm, and the non-bonded side of the resin layer 210 can also be hardened to make the treated hardness greater than 3H, preventing the surface of the process from being easily used. Scratch. The tempered glass layer 220 may have a thickness of 0.3-1 mm. The optical adhesive layer 230 is disposed between the resin layer 210 and the tempered glass layer 220 for bonding the resin layer 210 and the tempered glass layer 220. The thickness of the optical adhesive layer 230 is generally It is 0.05-0.2mm.

The screen printing ink layer 240 may be disposed between the optical adhesive layer 230 and the resin layer 210 or between the optical adhesive layer 230 and the tempered glass layer 220. wherein, in FIG. 2, only the silk screen ink layer 240 is disposed on the optical adhesive layer 230. An example is interposed between the resin layer 210 and the resin layer 210. The screen printing ink layer 240 is used for silk screen printing or border, and the function of the frame is to cover the surface of the surface of the bonding lens to improve the appearance; the thickness of the silk printing ink layer 240 is small, about 0.02-0.10 mm, or negligible . Wherein, the screen printing ink layer 240 can be annularly sandwiched on the inner circumference of the composite lens, and can also be arranged in a strip shape or a sheet shape and distributed in the interior of the composite lens, and different layouts are required for different aesthetic design requirements. Narration.

The composite lens in this embodiment has the advantages of lightness, flexibility, high strength and hardness, and high impact resistance, etc., in the previous embodiment, and a screen printing ink layer is also disposed inside the composite lens. Silkscreen logo or border to increase aesthetics.

The composite lens provided in this embodiment is mainly applied to a handheld terminal device. Please refer to FIG. 3. FIG. 3 is a schematic structural view of the composite lens of the present invention applied to a handheld terminal device. As can be seen from the figure, the resin layer 210 (or 110) is located. The outer surface of the handheld terminal device. The handheld terminal device may include a walkie-talkie, a personal digital terminal (PDA), a POS machine, and the like. Other structural features of the handheld terminal device are within the scope of those skilled in the art and will not be described herein.

The above is only one embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent device or equivalent process transformation made by using the present specification and the contents of the drawings may be directly or indirectly applied to other related The technical fields are all included in the scope of patent protection of the present invention.

Claims (10)

1. A composite lens for use in a handheld terminal device, characterized in that the composite lens comprises a resin layer and a tempered glass layer which are laminated, wherein when the composite lens is mounted on the handheld terminal device, the resin layer is located outside The surface, the tempered glass layer is located on the inner surface.
2. The composite lens according to claim 1, wherein the composite lens further comprises an optical member disposed between the resin layer and the tempered glass layer for bonding the resin layer and the tempered glass layer Adhesive layer.
3. The composite lens according to claim 2, wherein the composite lens further comprises a silk screen disposed between the optical adhesive layer and the resin layer or between the optical adhesive layer and the tempered glass layer. An ink layer for the silkscreen logo or border.
4. The composite lens according to claim 3, wherein the screen printing ink layer is annularly interposed on the inner circumference of the composite lens or strip-shapedly disposed inside the composite lens.
5. The composite lens according to claim 1, wherein the resin layer has a thickness of 0.3 to 0.8 mm.
6. The composite lens according to claim 3, wherein the screen printing ink layer has a thickness of 0.02-0.10 mm.
7. The composite lens according to claim 1, wherein the tempered glass layer has a thickness of from 0.3 to 1 mm.
8. The composite lens according to claim 2, wherein the optical adhesive layer has a thickness of 0.05 to 0.2 mm.
9. The composite lens according to claim 4, wherein the resin layer is subjected to a non-bonding side hardening treatment, and the hardness after the treatment is more than 3H.
10. The composite lens according to any one of claims 1 to 9, wherein the composite lens is applied to a handheld terminal device, including a walkie-talkie, a private digital terminal, and a POS machine.