Display pane and electronic device having a metal inhibition layer over light-sensing senor
View Patent ↗The present disclosure provides a display panel and an electronic device. A pixel definition layer of the display panel is provided with multiple second openings corresponding to multiple light-sensing sensors, a metal inhibition layer of the display panel is laid in the multiple second openings, and a encapsulation layer of the display panel is disposed to cover the metal inhibition layer and fill into the multiple second openings. By providing the multiple second openings on the pixel definition layer, lights are capable of passing through the pixel definition layer to reach the multiple light-sensing sensors, thereby solving a problem that an existing under-screen optical fingerprint is difficult to be directly applied in OLED products.
1 . A display panel, comprising:
a substrate;
a driving circuit layer disposed on a side of the substrate and comprising both a plurality of pixel driving circuits and a light-sensing sensor disposed between adjacent pixel driving circuits of the plurality of pixel driving circuits;
a first electrode layer disposed on a side of the driving circuit layer away from the substrate and comprising a plurality of first electrodes, wherein each of the plurality of first electrodes is electrically connected to corresponding one of the plurality of pixel driving circuits;
a pixel definition layer disposed on a side of the first electrode layer away from the substrate and comprising both a plurality of first openings corresponding to the plurality of first electrodes and a plurality of second openings corresponding to a plurality of light-sensing sensors;
a light emitting layer disposed on a side of the pixel definition layer away from the substrate;
a second electrode layer disposed on a side of the light emitting layer away from the substrate and comprising a plurality of third openings corresponding to the plurality of second openings;
a metal inhibition layer corresponding to the plurality of third openings and laid in the plurality of second openings; and
an encapsulation layer disposed on a side of the second electrode layer away from the substrate, wherein the encapsulation layer is disposed to cover the metal inhibition layer and fill into the plurality of second openings;
wherein a refractive index of the encapsulation layer is greater than that of the metal inhibition layer.
2 . The display panel according to claim 1 , wherein
an included angle between a side wall of each of the plurality of second openings and a bottom surface of the second opening close to the substrate is greater than 90 degrees; and
the metal inhibition layer is disposed to at least cover the side wall of each of the plurality of second openings.
3 . The display panel according to claim 2 , wherein
the encapsulation layer comprises a first inorganic encapsulation sublayer, an organic encapsulation sublayer, and a second inorganic encapsulation sublayer stacked in sequence; and
the first inorganic encapsulation sublayer is in contact with a side surface of the metal inhibition layer away from the substrate, and a refractive index of the first inorganic encapsulation sublayer is greater than that of the metal inhibition layer.
4 . The display panel according to claim 1 , further comprising:
a color light filter layer disposed on a side of the encapsulation layer away from the substrate, wherein the color light filter layer comprises:
a light-shielding portion, including a plurality of fourth openings corresponding to the plurality of first openings and a plurality of fifth openings corresponding to the plurality of second openings; and
light filter portions corresponding to the plurality of fourth openings.
5 . The display panel according to claim 4 , wherein the pixel definition layer comprises black pixels, a shape of each of the plurality of second openings is the same as that of each of the plurality of fifth openings, and a size of each of the plurality of second openings is the same as that of each of the plurality of fifth openings.
6 . The display panel according to claim 5 , wherein a shape of a bottom surface of each of the plurality of second openings close to the substrate is the same as that of a bottom surface of each of the plurality of fifth openings close to the substrate, and a size of the bottom surface of the second opening close to the substrate is the same as a size of the bottom surface of the fifth opening close to the substrate.
7 . The display panel according to claim 1 , further comprising:
a touch layer disposed on a side of the encapsulation layer away from the substrate and comprising a touch electrode sublayer, wherein the touch electrode sublayer includes a plurality of sixth openings corresponding to the plurality of second openings.
8 . The display panel according to claim 7 , wherein a shape of each of the plurality of second openings is the same as that of each of the plurality of sixth openings, and a size of each of the plurality of second openings is smaller than or equal to that of each of the plurality of sixth openings.
9 . The display panel according to claim 1 , wherein a partial film layer of each of the plurality of light-sensing sensors is disposed at the same layer as that of the driving circuit layer.
10 . The display panel according to claim 1 , wherein each of the plurality of second openings has a slope angle greater than or equal to 55 degrees.
11 . An electronic device, comprising a display panel, wherein the display panel comprises:
a substrate;
a driving circuit layer disposed on a side of the substrate and comprising both a plurality of pixel driving circuits and a light-sensing sensor disposed between adjacent pixel driving circuits of the plurality of pixel driving circuits;
a first electrode layer disposed on a side of the driving circuit layer away from the substrate and comprising a plurality of first electrodes, wherein each of the plurality of first electrodes is electrically connected to corresponding one of the plurality of pixel driving circuits;
a pixel definition layer disposed on a side of the first electrode layer away from the substrate and comprising both a plurality of first openings corresponding to the plurality of first electrodes and a plurality of second openings corresponding to a plurality of light-sensing sensors;
a light emitting layer disposed on a side of the pixel definition layer away from the substrate;
a second electrode layer disposed on a side of the light emitting layer away from the substrate and comprising a plurality of third openings corresponding to the plurality of second openings;
a metal inhibition layer corresponding to the plurality of third openings and laid in the plurality of second openings; and
an encapsulation layer disposed on a side of the second electrode layer away from the substrate, wherein the encapsulation layer is disposed to cover the metal inhibition layer and fill into the plurality of second openings;
wherein a refractive index of the encapsulation layer is greater than that of the metal inhibition layer.
12 . The electronic device according to claim 11 , wherein
an included angle between a side wall of each of the plurality of second openings and a bottom surface of the second opening close to the substrate is greater than 90 degrees; and
the metal inhibition layer is disposed to at least cover the side wall of each of the plurality of second openings.
13 . The electronic device according to claim 12 , wherein
the encapsulation layer comprises a first inorganic encapsulation sublayer, an organic encapsulation sublayer, and a second inorganic encapsulation sublayer stacked in sequence; and
the first inorganic encapsulation sublayer is in contact with a side surface of the metal inhibition layer away from the substrate, and a refractive index of the first inorganic encapsulation sublayer is greater than that of the metal inhibition layer.
14 . The electronic device according to claim 11 , further comprising:
a color light filter layer disposed on a side of the encapsulation layer away from the substrate, wherein the color light filter layer comprises:
a light-shielding portion, including a plurality of fourth openings corresponding to the plurality of first openings and a plurality of fifth openings corresponding to the plurality of second openings; and
light filter portions corresponding to the plurality of fourth openings.
15 . The electronic device according to claim 14 , wherein the pixel definition layer comprises black pixels, a shape of each of the plurality of second openings is the same as that of each of the plurality of fifth openings, and a size of each of the plurality of second openings is the same as that of each of the plurality of fifth openings.
16 . The electronic device according to claim 15 , wherein a shape of a bottom surface of each of the plurality of second openings close to the substrate is the same as that of a bottom surface of each of the plurality of fifth openings close to the substrate, and a size of the bottom surface of the second opening close to the substrate is the same as a size of the bottom surface of the fifth opening close to the substrate.
17 . The electronic device according to claim 11 , further comprising:
a touch layer disposed on a side of the encapsulation layer away from the substrate and comprising a touch electrode sublayer, wherein the touch electrode sublayer includes a plurality of sixth openings corresponding to the plurality of second openings.
18 . The electronic device according to claim 17 , wherein a shape of each of the plurality of second openings is the same as that of each of the plurality of sixth openings, and a size of each of the plurality of second openings is smaller than or equal to that of each of the plurality of sixth openings.
19 . The electronic device according to claim 11 , wherein a partial film layer of each of the plurality of light-sensing sensors is disposed at the same layer as that of the driving circuit layer.
20 . The electronic device according to claim 11 , wherein each of the plurality of second openings has a slope angle greater than or equal to 55 degrees.