Granted Patent B2

US 12,737,087 · App. 18/723,344 · Granted Sep 15, 2026

Inventors: Seyeob Kim (Seongnam-si, KR); Bonkee Kim (Seongnam-si, KR)

Assignee: HiDeep Inc.

G06F3/0446G06F3/03545G06F3/04162G06F3/0442G06F3/0445G06F3/0448G06F3/046

Abstract

Claims (75)

1 . A touch input device comprising:

a sensor unit; and

a control unit electrically connected to the sensor unit,

wherein the sensor unit comprises:

a plurality of first patterns each arranged along a first direction;

a plurality of second patterns each arranged along the first direction and adjacent to the first patterns;

a plurality of third patterns each arranged along a second direction intersecting the first direction; and

a plurality of fourth patterns each arranged along the second direction and adjacent to the third patterns,

wherein each of the first pattern includes a first-a pattern and a first-b pattern alternately arranged along the first direction,

wherein the first-a patterns of the plurality of first patterns arranged along the first direction being electrically connected to each other, the first-b patterns of the plurality of first patterns arranged along the first direction being electrically connected to each other,

wherein one end of each of the plurality of first patterns is electrically floated, and the other end of each of the plurality of first patterns is electrically connected to the control unit,

wherein one end of each of the plurality of third patterns is electrically floated, and the other end of each of the plurality of third patterns is electrically connected to the control unit,

wherein one ends of the plurality of second patterns are electrically connected to each other, and at least two of the other ends are electrically connected to each other and electrically connected to the control unit, and

wherein at least some of the fourth patterns among the plurality of fourth patterns have one ends electrically floating, and the other ends are electrically connected to each other.

2 . The touch input device of claim 1 ,

wherein the first to fourth patterns are disposed together on the same layer,

wherein each of the plurality of first patterns has an opening therein, in which the second pattern is disposed, and

wherein at least one third pattern is disposed at each of both sides based on the first pattern and has an opening therein, in which the fourth pattern is disposed.

3 . The touch input device of claim 2 , wherein the sensor unit further includes conductive patterns electrically connecting the first-a patterns arranged along the first direction to each other, and wherein the conductive patterns extend along the first direction and are disposed such that at least a portion thereof overlaps with the third and fourth patterns.

4 . The touch input device of claim 2 , wherein the sensor unit further includes conductive patterns electrically connecting the first-a patterns arranged along the first direction to each other, and wherein the conductive patterns are disposed to bypass the third patterns so as not to overlap with the third and fourth patterns.

5 . The touch input device of claim 2 , wherein the first pattern comprises an inverted triangle pattern, a triangle pattern, and a connection pattern configured to connect the inverted triangle pattern and the triangular pattern,

wherein the opening of the first pattern has a shape corresponding to an outer shape of the first pattern,

wherein the second pattern has a shape corresponding to that of the opening of the first pattern, and

wherein the third pattern has a rectangular, polygonal, circular, or elliptical shape.

6 . The touch input device of claim 1 , wherein the control unit is configured to control the sensor unit to operate in any one of a touch driving/sensing mode for sensing a touch position of an object, a stylus driving mode for driving a stylus pen, and a stylus sensing mode for sensing a touch position of the stylus pen,

wherein, in the touch driving/sensing mode, the control unit is configured to:

apply a touch driving signal to the plurality of third patterns;

receive a first touch sensing signal through the first-a patterns arranged along the first direction;

receive a second touch sensing signal through the first-b patterns arranged along the first direction; and

sense the touch position based on a signal obtained by subtracting the second touch sensing signal from the first touch sensing signal, and

wherein, in the stylus driving mode, the control unit is configured to apply a pen driving signal for driving the stylus pen to the plurality of second patterns or the plurality of third patterns.

7 . The touch input device of claim 6 , wherein, in the stylus sensing mode, the control unit is configured to receive a pen sensing signal from the stylus pen through the plurality of first patterns and the plurality of third patterns.

8 . The touch input device of claim 6 , wherein, in the stylus driving mode, the pen driving signal is applied to the plurality of third patterns and the pen driving signal is transferred from the plurality of third patterns to the plurality of fourth patterns by a capacitive coupling.

9 . The touch input device of claim 6 , wherein, in the stylus sensing mode, the pen sensing signal is transferred from the plurality of second patterns to the plurality of first patterns by a capacitive coupling, and is transferred from the plurality of fourth patterns to the plurality of third patterns by the capacitive coupling.

10 . The touch input device of claim 1 ,

wherein the sensor unit comprises first to fourth patterns disposed together on the same layer,

wherein each of the plurality of first patterns has an opening therein, in which the second pattern is disposed,

wherein the second pattern has an opening in which the third pattern is disposed, and

wherein the third pattern has an opening in which the fourth pattern is disposed.

11 . The touch input device of claim 10 , wherein the control unit is configured to control the sensor unit to operate in any one of a touch driving/sensing mode for sensing a touch position of an object, a stylus driving mode for driving a stylus pen, and a stylus sensing mode for sensing a touch position of the stylus pen,

wherein, in the touch driving/sensing mode, the control unit is configured to:

apply a touch driving signal to the plurality of third patterns;

receive a first touch sensing signal through the first-a patterns arranged along the first direction;

receive a second touch sensing signal through the first-b patterns arranged along the first direction; and

sense the touch position based on a signal obtained by subtracting the second touch sensing signal from the first touch sensing signal, and

wherein, in the stylus driving mode, the control unit is configured to apply a pen driving signal for driving the stylus pen to the plurality of second patterns or the plurality of third patterns.

12 . The touch input device of claim 1 ,

wherein the sensor unit comprises first to fourth patterns disposed together on the same layer,

wherein the plurality of first patterns has an opening therein, in which the second pattern is disposed, and

wherein the third patterns has a shape extending in the second direction, is arranged to surround the first patterns arranged in the second direction, and has an opening in which the fourth pattern is arranged.

13 . The touch input device of claim 12 , wherein the third pattern comprises a third outer pattern, a plurality of third inner patterns, and a plurality of third connection patterns,

wherein the third outer pattern has a shape corresponding to an outer shape of the third pattern and has a closed curve shape extending in the second direction,

wherein the plurality of third inner patterns are arranged in the second direction in one third outer pattern, and

wherein the plurality of third connection patterns electrically connect the plurality of third inner patterns arranged in the second direction and electrically connect the third inner patterns disposed at both edges, respectively, among the plurality of third inner patterns arranged in the second direction to the first outer pattern.

14 . The touch input device of claim 13 , wherein the fourth pattern comprises a fourth upper pattern and a fourth lower pattern electrically connected to each other,

wherein the fourth upper pattern is arranged in an upper opening defined by an upper portion of the third outer pattern, the plurality of third inner patterns, and the plurality of third connection patterns, and

wherein the fourth lower pattern is arranged in a lower opening defined by a lower portion of the third outer pattern, the plurality of third inner patterns, and the plurality of third connection patterns.

15 . The touch input device of claim 12 , wherein the sensor unit further includes conductive patterns electrically connecting the first-a patterns arranged along the first direction to each other, and wherein the conductive patterns extend along the first direction and are disposed such that at least a portion thereof overlaps the second patterns.

16 . The touch input device of claim 12 , the sensor unit further includes conductive patterns electrically connecting the first-a patterns arranged along the first direction to each other, and wherein the conductive patterns are disposed to bypass the second patterns so as not to overlap the second patterns.

17 . The touch input device of claim 1 ,

wherein the first and second patterns arranged together on a first layer and the third and fourth patterns arranged together on a second layer spaced apart from the first layer, and

wherein the third pattern has a shape extending in the second direction and has an opening in which the fourth pattern is disposed.

18 . The touch input device of claim 17 , wherein the first pattern comprises an inverted triangle pattern, a triangle pattern, and a connection pattern configured to connect the inverted triangle pattern and the triangular pattern,

wherein the opening of the first pattern has a shape corresponding to an outer shape of the first pattern,

wherein the second pattern has a shape corresponding to that of the opening of the first pattern,

wherein the third pattern comprises a plurality of diamond patterns and a connection pattern configured to connect two adjacent diamond patterns among the plurality of diamond patterns,

wherein the opening of the third pattern has a shape corresponding to an outer shape of the third pattern, and

wherein the fourth pattern has a shape corresponding to that of the opening of the third pattern.

19 . The touch input device of claim 17 , wherein the control unit is configured to control the sensor unit to operate in any one of a touch driving/sensing mode for sensing a touch position of an object, a stylus driving mode for driving a stylus pen, and a stylus sensing mode for sensing a touch position of the stylus pen,

wherein, in the touch driving/sensing mode, the control unit is configured to:

apply a touch driving signal to the plurality of third patterns;

receive a first touch sensing signal through the first-a patterns arranged along the first direction;

receive a second touch sensing signal through the first-b patterns arranged along the first direction; and

sense the touch position based on a signal obtained by subtracting the second touch sensing signal from the first touch sensing signal, and

wherein, in the stylus driving mode, the control unit is configured to apply a pen driving signal for driving the stylus pen to the plurality of second patterns or the plurality of third patterns.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (20)