CN-115101691-B - Display panel and display device

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a plurality of organic light emitting units, a plurality of small hole imaging structures and a photosensitive unit, wherein the small hole imaging structures are positioned between the adjacent organic light emitting units in a first direction, the small hole imaging structures comprise a focusing unit and an imaging small hole, the imaging small hole is positioned between the focusing unit and the photosensitive unit in a second direction, and the focus of the focusing unit is positioned in the imaging small hole. In the invention, the identification light reflected by the external object firstly passes through the focusing unit in the aperture imaging structure, the focusing unit has a converging effect on the identification light, so that the identification light is focused in the imaging aperture, further, the identification light forms a large-range image after passing through the imaging aperture, the light inlet quantity of the imaging aperture area is increased, the photosensitive unit can acquire more identification light carrying facial information, the acquisition effect of the photosensitive unit on the imaging information is ensured, and the facial recognition precision of the display panel is improved.

Inventors

• HUANG WEI
• ZHANG QINYUAN
• MA YANGZHAO

Assignees

• 武汉天马微电子有限公司

Dates

Publication Date

20260508

Application Date

20220620

Claims (11)

1. 1. A display panel, comprising a plurality of organic light emitting units, a plurality of pinhole imaging structures and a photosensitive unit, wherein the pinhole imaging structures are positioned between adjacent organic light emitting units in a first direction, and the first direction is parallel to a light emitting surface of the display panel; The small hole imaging structure comprises a focusing unit and an imaging small hole, wherein the imaging small hole is positioned between the focusing unit and the photosensitive unit in a second direction, and the focus of the focusing unit is positioned in the imaging small hole; the color film layer is positioned on the light emitting side of the organic light emitting unit and comprises a plurality of color resistors; The focusing unit comprises a convex lens structure, and the vertical projection of the convex lens structure on the light-emitting surface of the display panel is not overlapped with the vertical projection of the color resistor on the light-emitting surface of the display panel; the optical adhesive layer is positioned between the organic light-emitting unit and the color film layer in the second direction; The color film layer further comprises a plurality of light-transmitting structures, the light-transmitting structures are located between the adjacent color resistors in the first direction, the optical adhesive layer comprises a plurality of convex lens structures, and the refractive index of the convex lens structures is larger than that of the light-transmitting structures.
2. 2. The display panel of claim 1, further comprising a small hole array layer located on a side of the organic light emitting unit facing away from light extraction in the second direction; the aperture array layer includes a plurality of the imaging apertures.
3. 3. The display panel according to claim 2, further comprising a thin film transistor array layer and a light shielding layer, the light shielding layer being located at a side of the thin film transistor array layer remote from the organic light emitting unit; The light shielding layer is multiplexed into the aperture array layer, and the light shielding layer comprises a plurality of imaging apertures.
4. 4. A display panel according to claim 3, further comprising at least two transparent flexible substrate layers, the light shielding layer being located between two adjacent transparent flexible substrate layers.
5. 5. The display panel of claim 1, further comprising an optical glue layer located between the organic light emitting unit and the color film layer in the second direction; The color film layer further comprises a plurality of convex lens structures, the convex lens structures are located between adjacent color resistors in the first direction, and the refractive index of the convex lens structures is larger than that of the optical adhesive layer.
6. 6. The display panel of claim 1, further comprising a cover glass comprising a plurality of the lenticular structures; The color film layer further comprises a plurality of light-transmitting structures, and the light-transmitting structures are positioned between adjacent color resistors in the first direction; the refractive index of the convex lens structure is larger than that of the light-transmitting structure.
7. 7. The display panel of claim 1, further comprising an encapsulation layer on a side of the organic light emitting unit facing the color film layer.
8. 8. The display panel according to claim 7, wherein the encapsulation layer includes at least one inorganic layer and at least one organic layer alternately stacked in the second direction; The at least one inorganic layer and the at least one organic layer have a plurality of the lenticular lens structures formed therein.
9. 9. The display panel of claim 7, further comprising a touch layer positioned between the encapsulation layer and the color film layer.
10. 10. The display panel of claim 1, further comprising a polarizer located on a light-emitting side of the organic light-emitting unit, the polarizer having a plurality of lenticular structures formed therein.
11. 11. A display device comprising a display panel according to any one of claims 1-10.

Description

Display panel and display device Technical Field The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device. Background With the rapid development of display technology, display devices having a face recognition function have been popular in people's lives. In order to improve the screen occupation ratio, an under-screen optical component scheme is generated, wherein the under-screen optical component scheme is to arrange an optical component below a display area, so that a space reserved by a frame area for placing the optical component is saved, and the size of the frame area is reduced. But the face recognition effect of the display device at the present stage is still to be improved. Disclosure of Invention In view of the above, the present invention provides a display panel and a display device, so as to improve the face recognition effect of the display panel and the display device and ensure the accuracy of the face recognition result. In a first aspect, an embodiment of the present invention provides a display panel, including a plurality of organic light emitting units, a plurality of pinhole imaging structures, and a photosensitive unit, where the pinhole imaging structures are located between adjacent organic light emitting units in a first direction, and the first direction is parallel to a light emitting surface of the display panel; The small hole imaging structure comprises a focusing unit and an imaging small hole, wherein the imaging small hole is positioned between the focusing unit and the photosensitive unit in a second direction, and the focus of the focusing unit is positioned in the imaging small hole, wherein the second direction is the light emitting direction of the organic light emitting unit. In a second aspect, an embodiment of the present invention further provides a display apparatus, including a display panel according to the first aspect of the present invention. In the embodiment of the invention, the display panel comprises a plurality of organic light emitting units, a plurality of small hole imaging structures and a photosensitive unit, wherein the small hole imaging structures are positioned between the adjacent organic light emitting units in a first direction, the small hole imaging structures comprise a focusing unit and imaging small holes, the imaging small holes are positioned between the focusing unit and the photosensitive unit in a second direction, and the focus of the focusing unit is positioned in the imaging small holes. By adopting the scheme, the identification light reflected by the external object can firstly pass through the focusing unit in the small hole imaging structure, the focusing unit can focus the identification light, so that the identification light is focused in the imaging small hole, further, the identification light forms a large-range image after passing through the imaging small hole, the light inlet quantity of the imaging small hole area is increased, the photosensitive unit can collect more identification light carrying facial information, the collection effect of the photosensitive unit on the imaging information is ensured, and the facial recognition precision of the display panel is improved. Drawings FIG. 1 is a schematic diagram of a display panel in the prior art; FIG. 2 is a schematic cross-sectional view of FIG. 1 along the direction A-A'; fig. 3 is a schematic cross-sectional structure of a display panel according to an embodiment of the invention; FIG. 4 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; FIG. 5 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; FIG. 6 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; fig. 7 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; FIG. 8 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; FIG. 9 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; fig. 10 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; FIG. 11 is a schematic cross-sectional view of another display panel according to an embodiment of the invention; fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention. Detailed Description The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the