公开(公告)号：US20250085782A1

公开(公告)日：2025-03-13

申请号：US18829645

申请日：2024-09-10

Applicant: Sharp Display Technology Corporation

Inventor： Tomonori YOSHIDA ,  Yasuhiro SUGITA ,  Masafumi UENO ,  Takuma YAMAMOTO

IPC: G06F3/01 ,  G08B6/00

Abstract: A tactile sensation presenting device includes a tactile sensation presenting section and a control section. The tactile sensation presenting section includes anodic and cathodic electrodes. The control section can switch each anodic electrode between a first state (anodic potential) and a second state (floating potential) and can switch each cathodic electrode between a third state (cathodic potential) and a fourth state (floating potential). The control section controls the tactile sensation presenting section such that at least any one of the anodic electrodes is in the first state, with the others in the second state, at least one of the cathodic electrodes at least within a distance of 1.0 mm or less from the first-state anodic electrode is in the fourth state, with the others in the third state, and a total area of the first-state anodic electrode and the third-state cathodic electrodes is equal to or greater than 0.7 cm2.

公开(公告)号：US20240395206A1

公开(公告)日：2024-11-28

申请号：US18695206

申请日：2021-11-30

Applicant: Sharp Display Technology Corporation

Inventor： Masafumi UENO ,  Hiroyuki FURUKAWA

IPC: G09G3/3233

Abstract: A display device includes a display portion including a first element layer including an organic light-emitting layer, and a second element layer including a quantum dot light-emitting layer that emits light of the same color as the organic light-emitting layer and overlapping the first element layer in a plan view viewed in a normal direction of the organic light-emitting layer, and a control unit that generates first data corresponding to the first element layer and second data corresponding to the second element layer based on input data.

公开(公告)号：US20250140087A1

公开(公告)日：2025-05-01

申请号：US18910229

申请日：2024-10-09

Applicant: Sharp Display Technology Corporation

Inventor： Masafumi UENO ,  Tomonori YOSHIDA ,  Takuma YAMAMOTO ,  Yasuhiro SUGITA

IPC: G08B6/00 ,  A61N1/04

Abstract: A tactile sensation presenting device includes: a tactile sensation presenting section having a plurality of electrodes to present a tactile sensation by electrical stimulation at a specific portion of a user; and a control section capable of controlling the tactile sensation presenting section to provide electrical stimulation using at least one of the plurality of electrodes as an anode and at least another one of the plurality of electrodes as a cathode. The control section measures a flowability of an electric current through the specific portion of the user and adjusts an execution mode of the electrical stimulation based on a result of the measurement.