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US 12,008,201 B2Granted
Display device and an operating method thereof
AssigneeSamsung Display Co., Ltd.
InventorsYuna Kim, Hee Seomoon, Soojung Lee, Seungwook Chun, Boram Choi
Life of this patent
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Abstract
A display device including: a display panel; a first input sensor disposed on the display panel and configured to generate a first reception signal in response to a user input; a second input sensor spaced apart from the first input sensor on the display panel and configured to generate a second reception signal in response to the user input; and a readout circuit configured to generate an output signal corresponding to the user input in response to the first reception signal and the second reception signal.
Claims17
A display device, comprising:
- a display panel;
- a first input sensor disposed on a first side of the display panel and configured to generate a first reception signal in response to a user input;
- a second input sensor spaced apart from the first input sensor on the first side of the display panel and configured to generate a second reception signal in response to the user input;
- a first adhesive member disposed between the first side of the display panel and the first input sensor;
- a second adhesive member disposed between the first side of the display panel and the second input sensor;
- a readout circuit configured to generate an output signal corresponding to the user input in response to the first reception signal and the second reception signal;
- and
- a window overlapping the display panel,
- wherein the readout circuit comprises:
- an analog to digital converter configured to convert the first reception signal received from the first input sensor and the second reception signal received from the second input sensor into a first digital reception signal and a second digital reception signal, respectively;
- a force calculation unit configured to convert the first digital reception signal and the second digital reception signal into a force signal based on one of a sum and an average of the first digital reception signal and the second digital reception signal;
- a lookup table for storing a grip force signal corresponding to the force signal;
- and
- a grip force calculation unit configured to convert the force signal into the grip force signal based on the lookup table,
- wherein a correlation between one of a sum and an average of the first digital reception signal and the second digital reception signal and the force signal is determined depending on a material of the window,
- wherein the display device further comprises:
- an input sensing layer disposed on a second side of the display panel;
- and
- an anti-reflective layer disposed on the input sensing layer, wherein an empty space exists where the anti-reflective layer overlaps the first input sensor or the second input sensor since the input sensing layer is not in an area of the first and second input sensors,
- wherein an edge of the input sensing layer, an edge of the first input sensor and an edge of the first adhesive member contact a line that extends through the display panel and is perpendicular to top and bottom surfaces of the display panel.
17 more elements
A display device, comprising:
- a display panel;
- a first input sensor arranged at a first side of the display panel;
- a second input sensor arranged at the first side of the display panel;
- a first adhesive member disposed between the first side of the display panel and the first input sensor;
- a second adhesive member disposed between the first side of the display panel and the second input sensor;
- a readout circuit configured to detect a user's grip force in response to a first signal from the first input sensor and a second signal from the second input sensor,
- wherein the first input sensor includes a plurality of first pressure sensor cells and the second input sensor includes a plurality of second pressure sensor cells,
- wherein each of the first and second pressure sensor cells comprises:
- a first electrode disposed on a substrate;
- a second electrode disposed on the substrate and spaced apart from the first electrode;
- and
- a pressure sensing layer directly disposed on the first electrode and the second electrode,
- wherein the first electrode and the second electrode each have a comb shape,
- wherein the display device further comprises:
- an input sensing layer disposed on a second side of the display panel;
- and
- an anti-reflective layer disposed on the input sensing layer, wherein an empty space exists where the anti-reflective layer overlaps the first input sensor or the second input sensor since the input sensing layer is not in an area of the first and second input sensors,
- wherein an edge of the input sensing layer, an edge of the first input sensor and an edge of the first adhesive member contact a line that extends through the display panel and is perpendicular to top and bottom surfaces of the display panel.
15 more elements
Dependencies are inferred from the claim text.