Display panel, display apparatus, texture recognition method and electronic device

An electronic device, comprising:

• a display panel having a light-exit side and a non-light-exit side opposite to the light-exit side, a direction pointing to the non-light-exit side from the light-exit side being a first direction, along the first direction, the display panel including:
• a coded aperture mask layer, the coded aperture mask layer including a plurality of first light-transmission portions and a plurality of first light-shielding portions, the coded aperture mask layer being configured to form at least one part of a coded aperture array;
• and
• an optical sensing layer, the optical sensing layer including a plurality of optical sensors, the optical sensing layer being configured to receive texture recognition light passed through the coded aperture array and convert optical signals of the texture recognition light into electrical signals, wherein the texture recognition light is light that carries information about a texture to be recognized;
• the display panel further comprising:
• a coded aperture fit layer disposed on a side of the optical sensing layer proximate to the light-exit side, the coded aperture fit layer including a second light-transmission portion and a second light-shielding portion,
• wherein orthographic projections of the plurality of first light-shielding portions on a photosensitive surface of the optical sensing layer at least partially overlap an orthographic projection of the second light-transmission portion on the photosensitive surface of the optical sensing layer, so that the coded aperture mask layer cooperates with the coded aperture fit layer to form the coded aperture array;
• wherein the display panel is an active light-emitting display panel, and the active light-emitting display panel comprises:
• a first base;
• and
• a first pixel layer disposed above the first base, the first pixel layer including a plurality of light-emitting portions and a light-transmission pixel defining layer configured to isolate two adjacent light-emitting portions;
• the coded aperture fit layer includes at least one part of the first pixel layer, the plurality of light-emitting portions are configured to form the second light-shielding portion of the coded aperture fit layer, and the pixel defining layer is configured to form the second light-transmission portion of the coded aperture fit layer;
• and
• a side of the first pixel layer away from the first base is the light-exit side of the active light-emitting display panel, and the optical sensing layer is disposed on a side of the first pixel layer away from the light-exit side;
• and
• a texture recognition device, the display panel being coupled to the texture recognition device, the texture recognition device including:
• a signal receiver configured to receive the electrical signals transmitted by the plurality of optical sensors in the optical sensing layer, the electrical signals being converted by the plurality of optical sensors from the optical signals of the texture recognition light passed through the coded aperture array;
• and
• a processor configured to obtain an intermediate image of the texture to be recognized according to the electrical signals and then perform image restoration on the intermediate image according to a matrix of the coded aperture array to obtain a texture image.

A display panel having a light-exit side and a non-light-exit side opposite to the light-exit side, a direction pointing to the non-light-exit side from the light-exit side being a first direction, along the first direction, the display panel comprising:

• a coded aperture mask layer, the coded aperture mask layer including a plurality of first light-transmission portions and a plurality of first light-shielding portions, the coded aperture mask layer being configured to form at least one part of a coded aperture array;
• and
• an optical sensing layer, the optical sensing layer including a plurality of optical sensors, the optical sensing layer being configured to receive texture recognition light passed through the coded aperture array and convert optical signals of the texture recognition light into electrical signals, wherein the texture recognition light is light that carries information about a texture to be recognized;
• the display panel further comprising:
• a coded aperture fit layer disposed on a side of the optical sensing layer proximate to the light-exit side, the coded aperture fit layer including a second light-transmission portion and a second light-shielding portion,
• wherein orthographic projections of the plurality of first light-shielding portions on a photosensitive surface of the optical sensing layer at least partially overlap an orthographic projection of the second light-transmission portion on the photosensitive surface of the optical sensing layer, so that the coded aperture mask layer cooperates with the coded aperture fit layer to form the coded aperture array;
• wherein the display panel is a passive light-emitting display panel, and the passive light-emitting display panel comprises:
• a second base and a third base opposite to each other, and a liquid crystal layer disposed between the second base and the third base;
• and
• a plurality of filter portions disposed on a surface of the second base or the third base proximate to the liquid crystal layer, and a light-shielding pattern configured to isolate two adjacent filter portions,
• the plurality of filter portions are configured to form the second light-transmission portion of the coded aperture fit layer, and the light-shielding pattern is configured to form the second light-shielding portion of the coded aperture fit layer;
• and
• the third base is closer to the light-exit side of the passive light-emitting display panel than the second base, and the optical sensing layer is disposed on a side of the second base proximate to or away from the liquid crystal layer.