Patent Grant
9880665
This application claims the benefit of Chinese Patent Application No. CN201610005821.3 filed on Jan. 5, 2016 in the State Intellectual Property Office of China, the whole disclosure of which is incorporated herein by reference.
Field of the Invention
Embodiments of the present disclosure generally relate to field of display technique, in particular to a touch screen and a touch-sensitive apparatus.
Description of the Related Art
A capacitive touch screen operates by means of human current induction. A touch screen may be classified according to various ways. A first classification is based on operation principle of a touch screen and an information transmission medium. In this way, the touch screen may include a resistance-type, a capacitive induction-type, an infrared-type and a surface acoustic wave-type. A second one is based on mounting way. In this way, the touch screen may include an out-cell-type, an in-cell-type and an integrated-type. A third one is based on technical principle. In this way, the touch screen may include a vector pressure sensor technique touch screen, a resistance technique touch screen, a capacitive technique touch screen, an infrared technique touch screen, and a surface acoustic wave technique touch screen.
Embodiments of the present disclosure provide a touch screen and a touch-sensitive apparatus to prevent light rays outside a display region of the touch-sensitive apparatus from being reflected toward the display region through a silver paste layer, thereby reducing a light leak of the touch-sensitive apparatus and thus improving display effect and yield rate thereof.
According to one aspect of the present disclosure, there is provided a touch screen comprising a first transparent substrate layer and a first tin indium oxide layer and a silver paste layer formed on the first transparent substrate layer. The silver paste layer is electrically connected with the first tin indium oxide layer and arranged within a non-display region of the touch screen. The touch screen further comprises a shielding layer arranged on a side of the silver paste layer where the first transparent substrate layer is located and configured for shielding the silver paste layer.
With the touch screen according to exemplary embodiments of the present disclosure, by providing the shielding layer, it is possible to allow light rays outside the display region to be absorbed by the shielding layer arranged on the one side of the sliver paste layer toward the first transparent substrate firstly rather than being irradiated onto the silver paste layer and then reflected toward the display region of the touch screen. Therefore, the touch screen according to the exemplary embodiments of the present disclosure can reduce a light leak of the touch-sensitive apparatus, thereby improving display effect and yield rate thereof.
In some exemplary embodiments of the present disclosure, the above touch screen further comprises a first optical transparent adhesive layer arranged on a side of the first transparent substrate layer facing away from the silver paste layer; a second tin indium oxide layer arranged on a side of the first optical transparent adhesive layer facing away from the first transparent substrate layer; and a second transparent substrate layer arranged on a side of the second tin indium oxide layer facing away from the first optical transparent adhesive layer.
In some exemplary embodiments of the present disclosure, the shielding layer is arranged on a surface of the first transparent substrate layer facing away from the silver paste layer.
In some exemplary embodiments of the present disclosure, the shielding layer is arranged on a surface of the first optical transparent adhesive layer facing away from the first transparent substrate layer.
In some exemplary embodiments of the present disclosure, wherein the shielding layer is arranged on a surface of the second tin indium oxide layer facing toward the second transparent substrate layer.
In some exemplary embodiments of the present disclosure, the shielding layer has a thickness of 5-10 μm.
In some exemplary embodiments of the present disclosure, a distance between an edge of the shielding layer close to the display region and an edge of the display region is smaller than that between an edge of the silver paste layer close to the display region and the edge of the display region by 0.15-0.25 mm.
In some exemplary embodiment of the present disclosure, the shielding layer is made of a black ink material or a black matrix material.
In some exemplary embodiments of the present disclosure, the above touch screen further comprises a second optical transparent adhesive layer arranged on a side of the first tin indium oxide layer facing away from the first transparent substrate layer, and a cover glass arranged on a side of the second optical transparent adhesive layer facing away from the first tin indium oxide layer.
According to another aspect of the present disclosure, there is provided a touch-sensitive apparatus comprising the touch screen as described above. Since the above touch screen can prevent light rays outside the display region of the touch-sensitive apparatus from being reflected toward the display region through the silver paste layer, thereby reducing the light leak of the touch-sensitive apparatus and thus improving display effect and yield rate thereof, the touch-sensitive apparatus has a good display effect.
The accompanying drawings herein can provide further understanding to embodiments of the present disclosure and form a part of the embodiments of the present disclosure. Exemplary embodiments of the present invention and their description are intended to explain the invention, rather than being construed as limiting the invention. In the drawings:
Embodiments of the disclosure will be clearly and fully described hereinafter with reference to the accompanying drawings. Obviously, the described embodiments are merely part of the embodiments of the disclosure, rather than all embodiments of the disclosure.
with the touch screen according to the exemplary embodiment of the present disclosure, by providing the shielding layer 4, it is possible to allow light rays outside a display region to be absorbed by the shielding layer 4 arranged on a side of the sliver paste layer 3 where the first transparent substrate 1 is located (as denoted by the arrows in
The touch screen as described above further comprises a first optical transparent adhesive layer 7 arranged on a side of the first transparent substrate layer 1 facing away from the sliver paste layer 3, a second tin indium oxide layer 8 arranged on a side of the first optical transparent adhesive layer 7 facing away from the first transparent substrate layer 1, and a second transparent substrate layer 9 arranged on a side of the tin indium oxide layer 8 facing away from the first optical transparent adhesive layer 7.
The shielding layer 4 as described above may be provided in different positions.
Optionally, the shielding layer 4 may be arranged on a surface of the first transparent substrate layer 1 facing away from the sliver paste layer 3.
Optionally, the shielding layer 4 may be arranged on a surface of the first optical transparent adhesive layer 7 facing away from the first transparent substrate layer 1.
Optionally, the shielding layer 4 may be arranged on a surface of the second tin indium oxide layer 8 facing toward the second transparent substrate layer 9.
Typically, the shielding layer 4 as described above has a thickness of 5-10 μm. For example, the shielding layer 4 may has a thickness of 5 μm, 5.5 μm, 6 μm, 6.5 μm, 7 μm, 8 μm, 9 μm, 10 μm and etc., and the description thereof in detail is omitted herein.
Typically, as shown in
The above shielding layer 4 may be made of various materials. Optionally, the shielding layer 4 may be made of a black ink material.
Optionally, the shielding layer may be made of a black matrix material.
In certain alternative embodiments of the present disclosure, the touch screen as described above further comprises a second optical transparent adhesive layer 6 arranged on a side of the first tin indium oxide layer 2 facing away from the first transparent substrate layer 1, and a cover glass 5 arranged on a side of the second optical transparent adhesive layer 6 facing away from the first tin indium oxide layer 2.
During manufacturing the above touch screen, the first tin indium oxide layer 2 and the second tin indium oxide layer 8 may be firstly formed on the first transparent substrate layer 1 and the second transparent substrate layer 9, respectively, and then the shielding layer 4 is formed on the second tin indium oxide layer 8. Then, the two transparent substrate layers formed with the tin indium oxide layers are bonded together by the first optical transparent adhesive layer 7. Thereafter, the first tin indium oxide layer 2 is leaded out to be connected with a flexible circuit board through the silver paste layer 3. Finally, the cover glass 5 is connected with the first tin indium oxide layer 2 by the second optical transparent adhesive layer 6. Alternatively, the first tin indium oxide layer 2 and the second tin indium oxide layer 8 may be firstly formed on the first transparent substrate layer 1 and the second transparent substrate layer 9, respectively, and then the first optical transparent adhesive layer 7 is formed on a side of the first transparent substrate layer 1 facing away from the first tin indium oxide layer 2. Then, the shielding layer 4 is formed on a surface of the first optical transparent adhesive layer 7 facing away from the first transparent substrate layer 1, and the second transparent substrate layer 9 formed with the second tin indium oxide layer 8 is bonded with the first transparent substrate layer 1 through the first optical transparent adhesive layer 7 formed on the first transparent substrate layer 1. Thereafter, the first tin indium oxide layer 2 is leaded out to be connected with the flexible circuit board through the silver paste layer 3. Finally, the cover glass 5 is connected with the first tin indium oxide layer 2 by the second optical transparent adhesive layer 6.
Embodiments of the present disclosure further provide a touch-sensitive apparatus comprising the touch screen as described above. Since the above touch screen can prevent light rays outside the display region of the touch-sensitive apparatus from being reflected toward the display region through the silver paste layer, thereby reducing the light leak of the touch-sensitive apparatus and thus improving display effect and yield rate thereof, the touch-sensitive apparatus has a good display effect.
Obviously, it would be appreciated by those skilled in the art that various changes or modifications may be made to the embodiments of the present disclosure without departing from the principle and spirit thereof. If these changes or modifications to the embodiments of the present disclosure fall within the scope defined in claims and their equivalents of the present disclosure, the present disclosure are intended to cover these changes or modifications.
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|---|---|---|---|
| 2016 1 0005821 | Jan 2016 | CN | national |
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