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US 2025/0053295 A1Published application
Touch display device and touch driving method
AssigneeLG Display Co., Ltd.
InventorsJaeHo LEE, MinHo SOHN, Jiseok YANG, Kyuhwan LEE
Life of this patent
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Abstract
A touch display device comprising a display panel including a plurality of subpixels, a driving circuit configured to drive the display panel, and a timing controller configured to control a normal mode that displays an image, or a touch mode that displays an image and a touch pattern depending on a touch state of a stylus.
Claims19
A touch display device, comprising:
- a display panel including a plurality of subpixels;
- a driving circuit configured to drive the display panel;
- and
- a timing controller configured to control a normal mode of operation to display an image or a touch mode of operation to display an image and a touch pattern, based on a touch state of a stylus.
1 more element
A touch driving method, comprising:
- determining whether there is a touch by a stylus;
- operating in normal mode for displaying an image when there is no touch by the stylus;
- operating in touch mode for displaying an image and a touch pattern when there is a touch by the stylus;
- determining coordinates of the stylus in the touch mode;
- and
- tracking touch positions of the stylus.
3 more elements
A touch sensing system, comprising:
- a display panel including a plurality of subpixels;
- a stylus that senses contact or proximity with the display panel;
- a driving circuit configured to drive the display panel;
- and
- a timing controller configured to control a normal mode that displays an image, or a touch mode that displays an image and a touch pattern depending on a touch state of the stylus;
- wherein the touch pattern includes:
- cell areas where subpixels for displaying an encryption pattern are located;
- and
- guide lines where subpixels for dividing the cell areas are located.
6 more elements
Dependencies are inferred from the claim text.