The application claims priority to and benefits of Chinese Patent Application Serial No. 201710289264.7, filed with the State Intellectual Property Office of P. R. china on Apr. 27, 2017, the entire content of which is incorporated herein by reference.
The present disclosure relates to a field of display technology, and specifically to a display screen, a display device and a mobile terminal.
With the rocketing development of the information era, people pay more and more attention to information security issues. The mobile terminals are mostly provided with a fingerprint recognition module used for fingerprint recognition for a user of the mobile terminal, so as to improve the security of the mobile terminal. In the related art, the fingerprint recognition module is disposed out of a display area of a display panel so as to be prevented from hindering the display. A display area-to-screen ratio (the ratio of the display area to the whole display screen) is small with such a structure design, which influences the user experience. Therefore, with such a method that the fingerprint module and the display screen are disposed in a superposition manner, the display area-to-screen ratio can be increased. However, in such a structure, the display screen blocks a sensing signal of the fingerprint module, which causes low fingerprint acquisition efficiency of the fingerprint module and reduces the user experience.
The present disclosure provides a display screen, including a display layer and a light shielding layer. The display layer includes an upper surface and a lower surface opposite to the upper surface, the upper surface is configured to face a user, the light shielding layer is arranged to the lower surface of the display layer, the light shielding layer has a hole to allow a sensing signal of a fingerprint module to pass through.
The present disclosure provides a display screen, including the above-mentioned display screen, and further including a fingerprint module for recognizing fingerprints from a user and a frame. The display screen and the fingerprint module are fastened to the frame, and the fingerprint module is disposed at a side of the light shielding layer away from the display layer and located at a position corresponding to the hole. The fingerprint module includes a light emitter and a light inductor, and a first light signal emitted by the light emitter and a second light signal received by the light inductor can pass through the hole.
The present disclosure further provides a mobile terminal, including the above-mentioned display device.
To describe the technical solutions in the embodiments of the present disclosure more clearly, the accompanying drawings required for describing the embodiments are briefly introduced in the following. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, those ordinarily skilled in the art can also derive other drawings from these accompanying drawings without creative efforts.
The technical solutions of the embodiments of the present disclosure are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure.
Referring to
Referring to
It could be understood that the display layer 110 mentioned in embodiment of the present application is a light-transparent layer, so as to make it convenient for the fingerprint module to emit and receive the light signal through the display layer 110. As the display layer 110 is the light-transparent layer, in order to prevent structures below the display screen 100 (such as the electronic circuits) from being seen, the light shielding layer 120 is usually disposed below the display layer 110. The light shielding layer 120 can be a light-shieling foam layer, or a lightproof ink layer. The light shielding layer 120 can hide structures (such as the electronic circuits) below the display screen 100 from view and enables the display layer 110 to present the color of the light shielding layer 120 when the display screen 100 is in the non-luminous state. The light shielding layer 120 can be black, white or other colors.
Referring to
Further, the hole 121 can be a circular hole, a square hole, an oval hole or an irregular shaped hole. The irregular shaped hole can be a shape adapted to a shape of a contact surface of a fingerprint face contacting with the display screen 100.
Further, referring to
In an embodiment, referring to
The light-transparent material 132 forms a light-penetrating passage 133, the light-penetrating passage 133 is along a thickness direction of the display screen 100, and the fingerprint module emits and receives the light signal through the light-penetrating passage 133. The light-penetrating passage 133 can increase light transmittance of the light shielding sheet 130. The increase of the light transmittance of the light shielding sheet 130 increases transmittance of an incident light emitted from the fingerprint module to the fingerprint, thereby strength of the reflected light from the fingerprint is increased, and transmittance of the reflected light is increased, thus improving accuracy of fingerprint recognition.
The light-transparent material 132 can be a transparent material such as resin particles, glass powders, or a mixture of resin particles and glass powders. These transparent materials have a certain light transmission property and allow light (arrow part in
Further, the light shielding sheet 130 can be manufactured to be a membrane or a sheet having the light-penetrating passage 133 and then be stuck onto a substrate, and an optical cement can be used for sticking. The light-penetrating passage 133 is processed in the membrane or the sheet of the light shielding sheet 130, and thus the display screen 110 is not influenced.
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When a finger is pressed on the display screen 100, light emitted by the light emitter 213 forms the incident light a. The incident light a is cast on the fingerprint 214 through the light inductor 212, the hole 121 and the display layer 110. The reflected light b is formed by the reflection of the fingerprint 214, the reflected light b is received by the light inductor 212, and a fingerprint image of fingerprint 214 is obtained after the reflected light b is processed.
In an embodiment, referring to
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Regarding the display screen 100, the display device 200 and the mobile terminal 300 provided in embodiments of the present disclosure, the display device 200 includes the display screen 100 and the fingerprint module 210 disposed below the display screen 100. The display screen 100 includes the display layer 110 and the light shielding layer 120, the light shielding layer 120 is fastened to the lower surface 112 of the display layer 110, and the light shielding layer 120 has the hole 121. The fingerprint module 210 is located at the position corresponding to the hole 121. The fingerprint module 210 includes the light emitter 213 and the light inductor 212, the light signal emitted by the light emitter 213 is transmitted to the fingerprint 214 through the hole 121 and the display layer 110, and then is received by the light inductor 212 through the display layer 110 and the hole 121 after being reflected by the fingerprint 214, thus improving the fingerprint acquisition and recognition efficiency of the fingerprint module 210. In addition, by providing the light shielding sheet 130 to cover the hole 121 so as to hide the fingerprint module 210, the visual influence of the hole 121 on the user is reduced and the user experience is enhanced.
In summary, the preferred embodiments of the present disclosure has been disclosed as above, but the preferred embodiments are not intended to limit the present disclosure, those ordinarily skilled in the art can make various changes and retouched without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure is defined by the claims.
The above are the preferred embodiments of the present disclosure. It should be noted that those skilled in the art can make some improvements and retouches without departing from the principle of the present disclosure, which are also deemed as the protection scope of the present disclosure.
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