Mobile terminal and proximity sensor
A technology of proximity sensors and mobile terminals, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve problems such as increased cost, diffraction, unfavorable machine assembly, etc., to avoid misjudgment, avoid interference effect
Inactive Publication Date: 2016-10-26
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology
[0004] However, since the surface of the traditional convex lens 21a' used for infrared light transmission is a circular arc surface, after the infrared light is refracted by the semi-cylindrical surface, it will be reflected to the receiving end 22' through the touch screen 10', causing self-diffraction, making it close to The sensor 20' mistakenly judges that an external object is approaching the touch screen 10'
[0005] At present, this kind of self-diffraction is generally prevented by strengthening the partition between the transmitting end 21' and the receiving end 22', but strengthening this partition requires external structural parts such as silicone sleeves, which is not conducive to the whole machine assembly and added cost
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0031] see figure 2 , the mobile terminal 1 in an embodiment of the present invention includes a display screen 10 and a proximity sensor 20 disposed below the display screen 10 .
[0032] The proximity sensor 20 includes a transmitter 21 and a receiver 22 .
[0033] The emitting end 21 includes a light guide element 21a and an infrared emitting element 21b. Wherein, the light guide element 21a is arranged on the light-emitting path of the infrared emitting elem...
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The invention relates to a mobile terminal which comprises a display screen and a proximity sensor arranged below the display screen. The proximity sensor comprises a transmitting terminal and a receiving terminal; the transmitting terminal comprises an infrared transmitting element and a photocon arranged on a light outlet path of the infrared transmitting element; the photocon comprises an attached face attached to the top of the infrared transmitting element and an inclined plane with an included angle with the attached face; and after infrared light sent out by the infrared transmitting element is transmitted to the display screen through the inclined plane of the photocon, the infrared light reflected by the display screen is reflected to a region where the receiving terminal is not positioned. The invention further provides a proximity sensor. By the mobile terminal and the proximity sensor which are provided by the invention, misjudgment caused by the case that the display screen reflects the infrared light transmitted by the transmitting terminal to the receiving terminal can be avoided.
Description
technical field [0001] The present invention relates to a mobile terminal, in particular to a mobile terminal with a proximity sensor. Background technique [0002] Proximity sensors have been widely used in mobile terminals. For example, in mobile terminals including touch screens, when the mobile terminal is on and the proximity sensor detects that an external object approaches the touch screen, the touch screen is turned off to prevent misoperation of the touch screen. [0003] Such as figure 1 As shown, generally, a traditional proximity sensor 20' includes a transmitting end 21', an LED 21b' emitting infrared light is arranged inside the transmitting end, a receiving end 22', and a barrier is set between the transmitting end 21' and the receiving end 22'. In the wall 23', a semi-cylindrical convex lens 21a' is arranged on the top of the emitting end 21', and the plane of the convex lens 21a' fits the top of the emitting end 21'. The infrared light emitted by the trans...
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IPC IPC(8): G06F3/042
CPCG06F3/042
Inventor 周意保
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD