Haptic display device

• US 9,934,711 B2
• Filed: 06/24/2013
• Issued: 04/03/2018
• Est. Priority Date: 06/29/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Yeo, Yong-Seok, Ahn, Yi-Joon
• Primary Examiner(s): Edouard, Patrick
• Assistant Examiner(s): Wilson, Douglas M
• Application Number:
  US13/925,602
• Publication Number:
  US 20140002427A1
• Time in Patent Office: 1,744 Days
• Field of Search: 345204-206, 715701-702
• CPC Class Codes: G06F 1/1601 Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64
• CPC Class Codes: G06F 2200/1612 Flat panel monitor
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G09B 21/003 using tactile presentation of the information, e.g. Braille displays
• CPC Class Codes: G09B 21/004 Details of particular tactile cells, e.g. electro-mechanical or mechanical layout
• CPC Class Codes: G09G 3/02 by tracing or scanning a light beam on a screen
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks

Abstract

A haptic display device is disclosed. In one aspect, the device includes a plurality of scan lines disposed over a substrate and configured to transfer a scan signal and a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines. The device also includes a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal and a thin film transistor electrically connected to the scan lines and the data lines, wherein the thin film transistor is formed in each of a plurality of pixels. The device further includes a first electrode electrically connected to the thin film transistor, a second electrode facing the first electrode and an optical adjustment member disposed between the first and second electrodes.

Claims

1. A haptic display device comprising:

a substrate;

a plurality of scan lines disposed over the substrate and configured to transfer a scan signal;

a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines;

a plurality of driving power lines electrically insulated from the scan lines and configured to transfer a driving voltage, wherein the driving power lines cross the scan lines;

a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal;

a plurality of haptic members configured to change its height based at least in part on the haptic signal;

a thin film transistor electrically connected to at least one of the scan lines and the corresponding data line, wherein the thin film transistor is formed in each of a plurality of pixels arranged in a matrix pattern;

a first electrode electrically connected to the thin film transistor;

a second electrode facing the first electrode;

an optical adjustment member disposed between the first and second electrodes;

an insulating layer formed between the haptic control lines and the scan line, wherein the insulating layer is a protective layer covering the data lines; and

a barrier rib covering an edge of the first electrode and disposed on the insulating layer,

wherein the plurality of haptic members overlap the barrier rib,

wherein each of the haptic control lines is provided on a same layer with the first electrode and is separated from the first electrode, and wherein each of the haptic members is disposed between a selected one of the driving power lines and one of the data lines that is adjacent to the selected driving power line in a plan view.

2. The haptic display device of claim 1, wherein the haptic control lines are substantially parallel with the data lines.

3. The haptic display device of claim 2, wherein each of the plurality of haptic members is disposed at a crossing region between each of the haptic control lines and the corresponding scan line.

4. The haptic display device of claim 3, wherein the number of the haptic members is the same as the number of the data lines.

5. The haptic display device of claim 3, wherein the number of the haptic members is less than the number of the data lines.

6. The haptic display device of claim 3, wherein the number of the haptic control lines is the same as the number of the data lines.

7. The haptic display device of claim 3, wherein the number of the haptic control lines is less than the number of the data lines.

8. The haptic display device of claim 2, wherein each of the plurality of haptic members is disposed between each of the haptic control lines and the second electrode.

9. A haptic display device comprising:

a substrate;

a plurality of scan lines disposed over the substrate and configured to transfer a scan signal;

a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines;

a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal;

a thin film transistor electrically connected to a selected one of the scan lines and the corresponding data line, wherein the thin film transistor is formed in each of a plurality of pixels arranged in a matrix pattern;

a first electrode electrically connected to the thin film transistor;

a second electrode facing the first electrode;

an optical adjustment member disposed between the first and second electrodes, wherein the substrate is formed below the haptic control lines and at least one of the scan lines;

a plurality of haptic members each of which is formed between each of the haptic control lines and the corresponding data line; and

a barrier rib covering an edge of the first electrode,

wherein the plurality of haptic members overlap the barrier rib,

wherein the insulating layer is disposed on the same layer as the haptic members,

wherein each of the haptic control lines is provided on a same layer with the scan line and is separated from the scan line.

10. A haptic display device comprising:

a substrate;

a plurality of scan lines disposed over the substrate and configured to transfer a scan signal;

a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines;

a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal;

a thin film transistor electrically connected to a selected one of the scan lines and the corresponding data line, wherein the thin film transistor is formed in each of a plurality of pixels arranged in a matrix pattern;

a first electrode electrically connected to the thin film transistor;

a second electrode facing the first electrode;

an optical adjustment member disposed between the first and second electrodes; and

a barrier rib covering an edge of the first electrode,

wherein the substrate is formed below the haptic control lines and at least one of the scan lines,

wherein each of the haptic control lines is provided on a same layer with the scan line and is separated from the scan line, wherein the haptic control line is provided parallel with the scan line, wherein a haptic member is provided between the haptic control line and the first electrode, and wherein the plurality of haptic members overlap the barrier rib.

11. A haptic display device comprising:

a substrate;

a plurality of scan lines disposed over the substrate and configured to transfer a scan signal;

a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines;

a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal;

a thin film transistor electrically connected to a selected one of the scan lines and the corresponding data line, wherein the thin film transistor is formed in each of a plurality of pixels arranged in a matrix pattern;

a first electrode electrically connected to the thin film transistor;

a second electrode facing the first electrode; and

an optical adjustment member disposed between the first and second electrodes; and

a barrier rib covering an edge of the first electrode,

wherein the substrate is formed below the haptic control lines and at least one of the scan lines,

wherein each of the haptic control lines is provided on a same layer with the scan line and is separated from the scan line, wherein the haptic control line is provided parallel with the scan line, wherein a haptic member is provided between the haptic control line and the second electrode; and

wherein the plurality of haptic members overlap the barrier rib.

12. A haptic display device comprising:

a substrate;

a plurality of scan lines disposed over the substrate and configured to transfer a scan signal;

a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines;

a plurality of haptic control lines electrically insulated from the scan lines or the data lines and configured to transfer a haptic signal;

a plurality of haptic members configured to change its height based at least in part on the haptic signal;

a thin film transistor electrically connected to at least one of the scan lines and the corresponding data line, wherein the thin film transistor is formed in each of a plurality of pixels arranged in a matrix pattern;

a first electrode electrically connected to the thin film transistor;

a second electrode facing the first electrode;

an optical adjustment member disposed between the first and second electrodes; and

an insulating layer formed between the haptic control lines and the substrate; and

a barrier rib covering an edge of the first electrode,

wherein the insulating layer is an interlayer insulating layer covering and directly contacting the scan lines,

wherein each of the haptic control lines is provided on a same layer with the data line and is separated from the data line, and wherein each haptic member is disposed between the first electrode and a selected one of the data lines in a plan view, and wherein the plurality of haptic members overlap the barrier rib.

13. The haptic display device of claim 12, wherein the haptic control line is provided parallel with the data line.

14. The haptic display device of claim 13, wherein each of the plurality of haptic members is disposed between the respective scan line and the respective haptic control line.

15. A haptic display device comprising:

a substrate;

a plurality of scan lines disposed over the substrate and configured to transfer a scan signal;

a plurality of data lines electrically insulated from the scan lines and configured to transfer a data signal, wherein the data lines cross the scan lines;

a plurality of driving power lines electrically insulated from the scan lines and configured to transfer a driving voltage, wherein the driving power lines cross the scan lines;

a plurality of control lines electrically insulated from the scan lines or the data lines and configured to transfer a signal;

a plurality of piezo members configured to change its height based at least in part on the signal;

a switching thin film transistor electrically connected to at least one of the scan lines and the corresponding data line;

a driving transistor electrically connected to the switching thin film transistor and a selected one of the driving power lines;

a first electrode electrically connected to the driving transistor;

an organic light emitting diode disposed on the first electrode;

a second electrode disposed on the organic light emitting diode;

an insulating layer formed between the control lines and the substrate; and

a barrier rib covering an edge of the first electrode,

wherein the plurality of haptic members overlap the barrier rib,

wherein the insulating layer is a protective layer covering the data lines,

wherein each of the control lines is provided on a same layer with the first electrode and is separated from the first electrode, and wherein each piezo member is disposed between a selected one of the driving power lines and one of the data lines that is adjacent to the selected driving power line in a plan view.

16. The haptic display device of claim 15, wherein the control lines are substantially parallel with the data lines.

17. The haptic display device of claim 16, wherein each of the plurality of haptic members is disposed at a crossing region between each of the control lines and the corresponding scan line.