3-dimensional flat panel display with built-in touch screen panel

• US 9,348,447 B2
• Filed: 09/19/2011
• Issued: 05/24/2016
• Est. Priority Date: 09/30/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Jong-Woong, Lee, Joo-Hyung, Jeong, Geun-Young, Pak, Sang-Jin, Yang, Ji-Yeon, Cho, Se-Il
• Primary Examiner(s): Wang, Quan-Zhen
• Assistant Examiner(s): DAVIS, TONY O
• Application Number:
  US13/137,856
• Publication Number:
  US 20120081330A1
• Time in Patent Office: 1,709 Days
• Field of Search: 345173-176
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13 based on liquid crystals, e.g. single liquid crystal display cells
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/134309 characterised by their geometrical arrangement
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/3696 Generation of voltages supplied to electrode drivers
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: H04N 13/00 Stereoscopic video systems; Multi-view video systems; Details thereof
• CPC Class Codes: H04N 13/31 using parallax barriers
• CPC Class Codes: H04N 2213/001 Constructional or mechanical details

Abstract

A 3-dimensional (3D) flat panel display with a built-in touch screen panel includes a first substrate, a plurality of pixels on the first substrate, a plurality of first electrode patterns spaced apart from one another at a first predetermined interval along a first direction, the plurality of first electrode patterns for driving the plurality of pixels, a second substrate positioned to face the first substrate, and a plurality of barrier patterns formed on an outer surface of the second substrate and spaced apart from one another at a second predetermined interval along a second direction, intersecting the first direction. At least one of the plurality of first electrode patterns and at least one barrier pattern of the plurality of barrier patterns serve as electrodes for the built-in touch screen panel.

Claims

1. A 3-dimensional (3D) flat panel display with a built-in capacitive touch screen panel, the display comprising:

a first substrate;

a display layer on the first substrate, the display layer including a plurality of pixels;

a second substrate on the display layer, the second substrate being positioned to face the first substrate;

a plurality of first electrode patterns, the display layer being interposed between the plurality of first electrode patterns and the first substrate, the first electrode patterns being spaced apart from one another at a first predetermined interval along a first direction, the plurality of first electrode patterns for driving the plurality of pixels; and

a plurality of barrier patterns on an outer surface of the second substrate, the display layer being interposed between the plurality of barrier patterns and the first substrate, the barrier patterns being spaced apart from one another at a second predetermined interval along a second direction, intersecting the first direction, wherein at least one of the plurality of first electrode patterns and at least one barrier pattern of the plurality of barrier patterns serve as electrodes for the built-in capacitive touch screen panel.

2. The 3D flat panel display as claimed in claim 1, wherein the plurality of first electrode patterns is formed on an inner surface of the second substrate.

3. The 3D flat panel display as claimed in claim 1, wherein the plurality of first electrode patterns is formed on the outer surface of the second substrate.

4. The 3D flat panel display as claimed in claim 3, further comprising an insulating layer between the first electrode patterns and the barrier patterns.

5. The 3D flat panel display as claimed in claim 1, wherein the plurality of pixels comprises left eye pixels that display image information for a left eye and right eye pixels that display image information for a right eye, the left eye pixels and the right eye pixels being alternately formed.

6. The 3D flat panel display as claimed in claim 5, wherein the plurality of barrier patterns and transmission regions between the plurality of barrier patterns allow light respectively from the pixels for left and right eyes to be selectively shielded or transmitted.

7. The 3D flat panel display as claimed in claim 1, wherein the first electrode patterns serve as driving electrodes of a mutual capacitive touch screen panel, and the at least one barrier pattern serve as sensing electrodes of the mutual capacitive touch screen panel.

8. The 3D flat panel display as claimed in claim 1, wherein a same voltage is applied to the first electrode patterns during a first frame period in which the flat panel display performs an operation of displaying a predetermined image, and a driving signal is sequentially applied to the first electrode patterns during a second frame period in which the flat panel display performs touch recognition.

9. The 3D flat panel display as claimed in claim 8, wherein the first and second frame periods are alternately repeated.

10. The 3D flat panel display as claimed in claim 8, wherein the first and second frame periods do not overlap.

11. The 3D flat panel display as claimed in claim 1, further comprising:

a voltage application pad connected to each of the first electrode patterns; and

a voltage detection pad connected to the at least one barrier pattern.

12. The 3D flat panel display as claimed in claim 11, wherein the voltage detection pad is electrically connected to only individual barrier patterns spaced apart further than the second predetermined interval or adjacent two or more barrier patterns spaced apart by the second predetermined interval.

13. The 3D flat panel display as claimed in claim 12, wherein the barrier patterns not connected to a voltage detection pad are implemented in a floating state or have a ground voltage applied thereto.

14. The 3D flat panel display as claimed in claim 12, wherein the adjacent barrier patterns are connected to the same voltage detection pad so as to serve as one sensing electrode.

15. The 3D flat panel display as claimed in claim 12, wherein a width of each of the first electrode patterns at a portion that intersects the barrier patterns connected to a voltage detection pad is adjusted to minimize an area of the portion of the first electrode patterns intersecting the barrier patterns connected to a voltage detection pad.

16. The 3D flat panel display as claimed in claim 15, wherein the width of the first electrode patterns at a portion intersecting barrier patterns connected to a voltage detection pad is narrower than a width of the first electrode patterns at a portion intersecting other barrier patterns.

17. The 3D flat panel display as claimed in claim 1, wherein all of the barrier patterns serve as sensing electrodes for the built-in capacitive touch screen panel.

18. The 3D flat panel display as claimed in claim 1, wherein the plurality of first electrode patterns together serve as a common electrode during a display operation.

19. The 3D flat panel display as claimed in claim 1, wherein a width of the first electrode patterns at a region intersecting barrier patterns serving as electrodes for the built in capacitive touch screen is narrower than a width of the first electrode patterns at a region intersecting other barrier patterns.

20. The 3D flat panel display as claimed in claim 1, wherein:

the plurality of first electrode patterns simultaneously receive a same voltage during a first frame period,

the plurality of first electrode patterns sequentially receive a voltage for touch recognition during a second frame period, and

the first and second frame periods alternate.

21. The 3D flat panel display as claimed in claim 1, wherein the outer surface does not face the first substrate.