Method and apparatus to detect three-dimensional pattern information of a touch object
AssigneeSamsung Display Co., Ltd.
InventorsYoung Chan Kim, Il Nam Kim, Kyung Tea Park, Byung Han Yoo, Tae Hee Lee
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Abstract
A display device includes a substrate, display elements, a window, and a photo sensor array. The substrate includes a display area and a non-display area. The display elements overlap the display area. The window is disposed on the substrate. The photo sensor array is disposed between the substrate and the window. The photo sensor array is configured to sense three-dimensional pattern information (e.g., epidermal ridge information) of a user via light reflected from a touch input of the user. One or more of the display elements is configured to illuminate a contact area of the touch input with the light.
Claims12
A display device comprising:
- a substrate comprising:
- a display area;
- and
- a bezel area outside the display area, the bezel area forming at least one edge of the substrate;
- pixel regions overlapping the display area;
- a window disposed on the substrate;
- and
- a photo sensor array overlapping a portion of the bezel area and being stacked between the substrate and the window, the photo sensor array being configured to sense epidermal ridge information of a user via light reflected from a touch input of the user,
- wherein one or more of the pixel regions is configured to illuminate a contact area of the touch input with the light.
Dependencies are inferred from the claim text.