TOUCH DEVICE, TOUCH DISPLAY THEREOF, AND ELECTRONIC APPARATUS THEREOF

• US 20140125880A1
• Filed: 10/21/2013
• Published: 05/08/2014
• Est. Priority Date: 11/07/2012
• Status: Abandoned Application

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: TSAI, YU-CHENG, Lu, Chao- Liang
• Application Number:
  US14/058,866
• Publication Number:
  US 20140125880A1
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires

Abstract

A touch device comprises a substrate, multiple floating gate transistors, multiple first touch electrode lines, and multiple second touch electrode lines. The floating gate transistors are formed on the substrate. Each of the floating gate transistors includes a first electrode, a second electrode, and an active layer located between the first electrode and the second electrode. The first touch electrode lines extending along with a row direction are parallel to each other, and the second touch electrode lines extending along with a column direction are parallel to each other. The first electrodes of the floating gate transistors arranged on the same row are electrically connected to the same first touch electrode line, and the second electrodes of the floating gate transistors arranged on the same column are electrically connected to the same second touch electrode line.

Claims

1. A touch device, comprising:

a substrate;

a plurality of floating gate transistors, formed on the substrate, wherein each of the floating gate transistors comprises a first electrode, a second electrode, and an active layer located between the first electrode and the second electrode;

a plurality of first touch electrode lines, extending along with a row direction and arranged parallel to each other and; and

a plurality of second touch electrode lines, extending along with a column direction and arranged parallel to each other and;

wherein the first electrodes of the floating gate transistors arranged on a same row are electrically connected to the same first touch electrode line, and the second electrodes of the floating gate transistors arranged on a same column are electrically connected to the same second touch electrode line;

when a charged object approaches to the floating gate transistor, the first electrode, the second electrode, and the active layer form a channel to make the first touch electrode line and second touch electrode line conductive to each other.

2. The touch device according to claim 1, wherein the floating gate transistor further comprises a gate, and the gate is floating.

3. The touch device according to claim 1, wherein the first electrode and the second electrode of the floating gate transistor are applied with a same voltage.

4. A touch display, comprising:

a first substrate; and

a plurality of pixel units, formed on the first substrate, wherein at least the pixel unit comprises;

a gate line, extending along with a row direction;

a data line, extending along with a column direction;

a thin-film transistor, electrically connected to the gate line and the data line; and

a floating gate transistor, comprising;

a first electrode;

a second electrode; and

an active layer, located between the first electrode and the second electrode;

wherein when a charged object approaches to the floating gate transistor, the first electrode, the second electrode, and the active layer form a channel.

5. The touch display according to claim 4, wherein the floating gate transistor further comprises a gate, and the gate is floating.

6. The touch display according to claim 4, wherein the first electrode and the second electrode of the floating gate transistor are applied with a same voltage.

7. The touch display according to claim 4, wherein the first electrode is electrically connected the gate line, and the second electrode is electrically connected to the data line.

8. The touch display according to claim 4, wherein at least the pixel unit further comprises:

a touch control electrode line, extending along with the column direction and being parallel to the gate line, or alternatively, extending along with the row direction and being parallel to the data line, wherein the first electrode is electrically connected to the touch control electrode line, and the second electrode is electrically connected to the data line or the gate line.

9. The touch display according to claim 4, wherein at least the pixel unit further comprises:

a first touch electrode line, extending along with the row direction and being parallel to the gate line; and

a second touch electrode line, extending along with the column direction and being parallel to the data line,

wherein the first electrode is electrically connected to the first touch electrode line, and the second electrode is electrically connected to the second touch electrode lines.

10. The touch display according to claim 4, further comprising:

a liquid crystal layer, form on the pixel units;

a second substrate, formed on the liquid crystal layer; and

a back-light source, formed on the second substrate.

11. An electronic apparatus, comprising:

an electronic apparatus body; and

a touch display, electrically connected to the electronic apparatus body, comprising;

a first substrate; and

a plurality of pixel units, formed on the first substrate, wherein at least the pixel unit comprises;

a gate line, extending along with a row direction;

a data line, extending along with a column direction;

a thin-film transistor, electrically connected to the gate line and the data line; and

a floating gate transistor, comprising;

a first electrode;

a second electrode; and

an active layer, located between the first electrode and the second electrode;

wherein when a charged object approaches to the floating gate transistor, the first electrode, the second electrode, and the active layer form a channel.

12. The electronic apparatus according to claim 11, wherein the floating gate transistor further comprises a gate, and the gate is floating.

13. The electronic apparatus according to claim 11, wherein the first electrode and the second electrode of the floating gate transistor are applied with a same voltage.

14. The electronic apparatus according to claim 11, wherein the first electrode is electrically connected the gate line, and the second electrode is electrically connected to the data line.

15. The electronic apparatus according to claim 11, wherein at least the pixel unit further comprises:

a touch control electrode line, extending along with the column direction and being parallel to the gate line, or alternatively, extending along with the row direction and being parallel to the data line, wherein the first electrode is electrically connected to the touch control electrode line, and the second electrode is electrically connected to the data line or the gate line.

16. The electronic apparatus according to claim 11, wherein at least the pixel unit further comprises:

a first touch electrode line, extending along with the row direction and being parallel to the gate line; and

a second touch electrode line, extending along with the column direction and being parallel to the data line,

wherein the first electrode is electrically connected to the first touch electrode line, and the second electrode is electrically connected to the second touch electrode lines.

17. The electronic apparatus according to claim 11, wherein the touch display further comprises:

a liquid crystal layer, form on the pixel units;

a second substrate, formed on the liquid crystal layer; and

a back-light source, formed on the second substrate.