Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and 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, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "thickness" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Referring to fig. 1, the present invention provides a display screen 100, where the display screen 100 includes a light shielding panel 10 and a display panel 20. The shading panel 10 is provided with a hollow groove 11, and the fingerprint module 30 is fixed in the hollow groove 11. The display panel 20 is stacked on the side of the light shielding panel 10 facing the user, and an ink layer 21 is disposed on the side of the display panel 20 facing the light shielding panel 10. The ink layer 21 at least covers the area outside the hollow-out groove 11 in the orthographic projection area of the shading panel 10. The chromaticity of the ink layer 21 is consistent with the chromaticity of the fingerprint module 30 facing the user. It can be understood that the user sees through display panel 20 observes the visual effect of printing ink layer 21 and sees through display panel 20 observes fingerprint module 30's visual effect is unanimous to make the user observe display screen 100 outward appearance vision integration improves user experience. The display screen 100 is applied to a mobile terminal, which may be a mobile phone, a notebook computer, or a tablet computer.
By arranging the ink layer 21 on the side of the display panel 20 facing the shading panel 10, and covering the area outside the hollow groove 11 at least in the orthographic projection area of the shading panel 10 by the ink layer 21, a user can only observe the ink layer 21 and the fingerprint module 30 through the display panel 20, and the chromaticity of the ink layer 21 is consistent with the chromaticity of the shading panel 10 facing the display panel 20, so that the color difference between the ink layer 21 and the shading panel 10 is reduced, and the user experience is improved.
In this embodiment, the light shielding panel 10 is located on the back side of the display panel 20. The light shielding panel 10 shields the display panel 20 from the back device, and prevents a user from observing the back device through the display panel 20, thereby preventing the displayed image of the display panel 20 from being unclear. The light blocking panel 10 prevents the display panel 20 from leaking light. The light shielding panel 10 includes a first surface 12 facing the display panel 20 and a second surface 13 disposed opposite to the first surface 12. The hollow-out groove 11 penetrates from the first surface 12 to the second surface 13. Will fingerprint module 30 is fixed in fretwork groove 11 avoids shading panel 10 blocks fingerprint module 30 response user's fingerprint. It is convenient for the fingerprint module 30 to sense the fingerprint of the user through the display panel 20. The light shielding panel 10 protects the display panel 20 outside the hollow groove 11, so as to prevent the display panel 20 from being scratched, and increase the service life of the display panel 20. The hollow 11 may be near a short side of the sunshade panel 10. And when the user vertically uses the display screen 100, the hollow groove 11 may be located at the bottom end of the light-shielding panel 10, so that the fingerprint module 30 in the hollow groove 11 can conveniently collect the fingerprint of the user. Of course, in other embodiments, the light shielding panel 10 may further have a plurality of hollow-out grooves 11, and each of the hollow-out grooves 11 is fixed with a fingerprint module 30, so that fingerprint identification can be performed at a plurality of positions on the display screen 100.
In the present embodiment, the display panel 20 may display an image, and the display panel 20 includes a display area 20a and a non-display area 20b adjacent to the display area 20 a. The display area 20a displays an image. The non-display area 20b is provided with a package structure and a circuit structure. The display region 20a may transmit light when the display panel 20 does not display an image. The orthographic projection of the hollow-out groove 11 on the display panel 20 is located in the display area 20 a. I.e. the user can input a fingerprint at the location of the display screen 100 in the display area 21. The display panel 20 includes an upper surface 23 and a lower surface 24 disposed opposite the upper surface 23. The upper surface 23 faces the user and the lower surface 24 is attached to the first surface 12 of the sunshade panel 10. The ink layer 21 is coated on the lower surface 24. The ink layer 21 is visible to the user through the display panel 20, but the area of the shading panel 10 outside the hollow-out groove 11 is not visible through the ink layer 21. And the chromaticity of the ink layer 21 is consistent with the chromaticity of the fingerprint module 30 facing to the user side, so that the color difference between the ink layer 21 and the fingerprint module 30 is reduced. The user sees through display panel 20 the visual effect integration of printing ink layer 21 with fingerprint module 30.
Further, referring to fig. 2, the fingerprint module 30 is an optical fingerprint module, the ink layer 21 further covers the hollow groove 11 in the orthographic projection area of the light-shielding panel 10, a plurality of micro holes 211 are formed in an area of the ink layer 21 opposite to the hollow groove 11, and the micro holes 211 are used for allowing the sensing light of the fingerprint module 30 to pass through.
In this embodiment, fingerprint module 30 sends the response light to user's fingerprint, and the user's fingerprint receives response light after the response light with response light reflection extremely fingerprint module 30, fingerprint module 30 receives the response light that reflects back, sends the time difference of response light to receiving response light according to fingerprint module 30, can calculate fingerprint module 30 to user's fingerprint's size, that is to say can measure the size of the crest or the trough of fingerprint module 30 distance user's fingerprint to can obtain user's fingerprint image, and then gather user's fingerprint. The plurality of micro holes 211 can penetrate through a plurality of beams of sensing light, namely, the multi-point collection of the fingerprints of the user can be realized, and finally, the fingerprint image of the user can be conveniently formed. It can be understood that each micropore 211 can see through the response light that fingerprint module 30 sent, or see through the response light that reflects back from user's fingerprint, or can see through promptly again the response light that fingerprint module 30 transmitted can see through the response light that reflects back from user's fingerprint again. Of course, in other embodiments, the fingerprint module 30 may also be a capacitive fingerprint module.
Further, a plurality of the micro wells 211 are arranged in an array. In this embodiment, the hollow-out groove 11 is a rectangular hole. The ink layer 21 is printed on the lower surface 24 of the display panel 20, and the ink layer 21 covers the entire lower surface 24. Namely, the ink layer 21 covers the hollow-out grooves 11 in the area of the front projection area of the light-shielding panel 10 except for the hollow-out grooves 11. The printing ink layer 21 is formed by silk screen printing, and the micropores 211 are formed by silk screen printing on the printing ink layer 21 according to preset graphic positions. Due to the arrangement of the plurality of micropores 211, the user fingerprint can be conveniently acquired as an array point image, namely, the user fingerprint can be conveniently recorded and identified. Of course, in other embodiments, the plurality of micro-holes 211 may be randomly arranged.
Further, referring to fig. 3, the plurality of micro holes 211 includes a first micro hole 212 and a second micro hole 213, the first micro hole 212 is used for transmitting the sensing light emitted from the fingerprint module 30 to the outside, and the second micro hole 213 is used for transmitting the sensing light reflected from the outside to the fingerprint module 30.
In this embodiment, the ink layer 21 has a plurality of pairs of the first micropores 212 and the second micropores 213. Each of the first micro holes 212 and each of the second micro holes 213 are close to each other, so that the sensing light emitted through the first micro holes 212 and the sensing light reflected through the second micro holes 213 are independent of each other, and the recognition degree is improved, thereby improving the fingerprint collection efficiency.
Referring to fig. 4, in an embodiment, the ink layer 21 covers only an area outside the hollow groove 11 in the front projection area of the light-shielding panel 10. The user can only observe the ink layer 21 and the fingerprint module 30 located in the hollow-out groove 11 through the display panel 20.
Referring to fig. 5, in an embodiment, the ink layer 21 covers an area of the front projection area of the light-shielding panel 10 except for the hollow-out groove 11, and the ink layer 21 also partially covers the hollow-out groove 11. The ink layer 21 also covers the periphery of the fingerprint module 30, and a user can see the ink layer 21 and a part of the fingerprint module 30 through the display panel 20.
Further, the shading panel 10 is made of foam. In this embodiment, the light shielding panel 10 is adhered to the lower surface 24 of the display panel 20 through an adhesive. The light blocking panel 10 can effectively protect the display panel 20, prevent the display panel 20 from being scratched or damaged, and also prevent the display panel 20 from leaking light. Of course, in other embodiments, the sunshade panel 10 can also be a plastic plate.
Further, referring to fig. 6 and 7, the display panel 20 includes a substrate 25 and a display layer 26, the substrate 25 is stacked on the light-shielding panel 10, and the display layer 26 is stacked on a side of the substrate 25 opposite to the light-shielding panel 10.
In one embodiment, as shown in FIG. 6, the display panel 20 is a liquid crystal display panel. The substrate 25 is a TFT (Thin Film Transistor) substrate, and the display layer 26 is a liquid crystal layer. The display panel 20 further includes a color substrate 27 attached to a side of the display layer 26 opposite to the substrate 25, an upper polarizer 28 attached to a side of the color substrate 27 opposite to the display layer 26, a lower polarizer 29 attached to a side of the substrate 25 opposite to the display layer 26, and a backlight 201 attached to a side of the lower polarizer 29 opposite to the substrate 25. The upper surface 23 is disposed on the upper polarizer 28, and the lower surface 24 is disposed on the backlight 201. When the display screen 100 does not display an image, the display panel 20 can transmit the sensing light of the fingerprint module 30 to realize fingerprint collection. Of course, when the display screen 100 displays an image, the fingerprint module 30 emits a sensing light with a wavelength different from that of the display panel 20, so that fingerprint collection can be realized.
In one embodiment, as shown in fig. 7, the display panel 20 is an OLED (Organic Light-emitting diode) display panel. The substrate 25 is a glass substrate. The display layer 26 is an organic light emitting layer. The display panel 20 further includes an anode layer 227 attached between the display layer 26 and the substrate 25, a cathode layer 228 attached to a side of the display layer opposite to the anode layer 227, and an upper polarizer 229 attached to the cathode layer 228 facing away from the display layer 26. The anode layer 227 and the cathode layer 228 drive the display layer 26 to emit light. The upper surface 23 is disposed on the upper polarizer 229, and the lower surface 24 is disposed on the anode layer 227.
Further, referring to fig. 8, the display screen 100 further includes a light-transmitting cover plate 40, the light-transmitting cover plate 40 is stacked on a side of the display panel 20 opposite to the light-shielding panel 10, and the light-transmitting cover plate 40 covers the display panel 20.
In this embodiment, the light-transmitting cover plate 40 is a glass plate. The transparent cover plate 40 is bonded to the display panel 20 by optical adhesive. The light-transmitting cover plate 40 protects the display panel 20 and prevents the display panel 20 from being scratched. When the finger of the user is pressed against the transparent cover plate 40 and corresponds to the position of the hollow-out groove 11 of the light-shielding panel 10, the fingerprint module 30 collects the fingerprint of the finger of the user.
Referring to fig. 9, the present invention further provides a display device 200, wherein the display device 200 includes the display screen 100, the display device 200 further includes a fingerprint module 30, and the fingerprint module 30 is fixed to the hollow groove 11.
In this embodiment, the fingerprint module 30 is fixed in the hollow groove 11 and attached to the lower surface 2421 of the display panel 20. The fingerprint module 30 is black towards one side of the user, the area of the ink layer 21 outside the micropore 211 is also black, and the chromaticity of the fingerprint module 30 towards one side of the user is consistent with the chromaticity of the area of the ink layer 21 outside the micropore 211. The fingerprint module 30 includes a base 31, a light emitting source 32 and a light receiving source 33. The base 31 is a plate. The number of the light emitting sources 32 is plural, and the number of the light receiving sources 33 is plural. The plurality of light emitting sources 32 and the plurality of light receiving sources 33 are collectively arrayed on the base 31. Each of the light emitting sources 32 corresponds to the first micro-hole 212, and the light receiving sources 33 correspond to the second micro-holes 213. The light emitting source 32 emits sensing light toward the user's fingerprint through the first micro-holes 212 and the display panel 20, and the light receiving source 33 receives the sensing light reflected from the user's fingerprint through the display panel 20 and the second micro-holes 213.
Referring to fig. 10, the present invention further includes a mobile terminal 300, where the mobile terminal 300 includes the display device 200, and the mobile terminal 300 further includes a main board 50 and a rear case 60. Display screen 100 with the backshell 60 closes mutually, mainboard 50 is fixed in the backshell 60 with between the display screen 100, fingerprint module 30 electricity is connected mainboard 50, with the user's fingerprint of gathering send to mainboard 50. It is understood that the mobile terminal 300 may be a mobile phone, a tablet computer, a notebook computer, or the like.
According to the display screen, the display device and the mobile terminal, the ink layer is arranged on one side, facing the shading panel, of the display panel, the ink layer at least covers the area outside the hollow groove in the orthographic projection area of the shading panel, a user can only observe the ink layer and the fingerprint module through the display panel, the chromaticity of the ink layer is consistent with that of the fingerprint module facing the user, the color difference between the ink layer and the fingerprint module is reduced, the user can observe the visual integration of the ink layer and the fingerprint module through the display panel, and the user experience is improved.
The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.