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

• US 10,459,571 B2
• Filed: 02/12/2019
• Issued: 10/29/2019
• 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): Davis, Tony O
• Application Number:
  US16/274,022
• Publication Number:
  US 20190179480A1
• Time in Patent Office: 259 Days
• Field of Search: 345170-176
• 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 display with a touch sensor, the display comprising:

a first substrate;

pixels on the first substrate;

a second substrate including a first side facing the first substrate and a second side opposite the first side;

first electrodes between the first and second substrates; and

second electrodes on the second side of the second substrate,

wherein at least one of the first electrodes and the second electrodes serve as electrodes for the touch sensor,

the first electrodes receive a reference voltage for displaying an image, and

the at least one of the first electrodes receives a driving signal for performing a touch recognition.

2. The display as claimed in claim 1, wherein the touch sensor is a capacitive touch sensor.

3. The display as claimed in claim 1, wherein the first electrodes are provided on the first side of the second substrate.

4. The display as claimed in claim 1, further comprising a color filter between the first electrodes and the second substrate.

5. The display as claimed in claim 1, wherein

the at least one of the first electrodes serves as driving electrodes of a mutual capacitive touch sensor, and

the second electrodes serve as sensing electrodes of the mutual capacitive touch sensor.

6. The display as claimed in claim 1, wherein remaining electrodes of the first electrodes apart from the at least one of the first electrodes receive a ground voltage when the at least one of the first electrodes receives the driving signal.

7. The display as claimed in claim 1, wherein the display displays the image when the first electrodes receive the reference voltage and the display performs the touch recognition when the at least one of the first electrodes receives the driving signal.

8. The display as claimed in claim 1, further comprising a polarizing plate on the second side of the second substrate.

9. The display of claim 8, wherein the second electrodes are between the second substrate and the polarizing plate.

10. The display as claimed in claim 1, wherein each pixel includes:

a transistor on the first substrate;

a third electrode on the first substrate, the third electrode connected to the transistor; and

a liquid crystal layer between the first substrate and the second substrate.

11. The display of claim 10, wherein the first electrode is to generate a field together with the third electrode.

12. The display as claimed in claim 10, wherein the first electrodes are provided between the liquid crystal layer and the second substrate.

13. The display as claimed in claim 10, wherein the first electrodes are between the liquid crystal layer and the first substrate.

14. The display as claimed in claim 1, wherein

the first electrodes are spaced apart from one another at a first interval along a first direction, and

the second electrodes are spaced apart from one another at a second interval along a second direction intersecting the first direction.

15. A display with a touch sensor, the display comprising:

a first substrate;

pixels on the first substrate;

a dielectric layer including a first side facing the first substrate and a second side opposite the first side;

first electrodes between the first substrate and the dielectric layer; and

second electrodes on the second side of the dielectric layer,

wherein at least one of the first electrodes and the second electrodes serve as electrodes for the touch sensor, and

wherein the at least one of the first electrodes serves as driving electrodes of a mutual capacitive touch sensor, and the second electrodes serve as sensing electrodes of the mutual capacitive touch sensor.

16. The display as claimed in claim 15, wherein the touch sensor is a capacitive touch sensor.