DISPLAY DEVICE INTEGRATED WITH TOUCH SCREEN PANEL

• US 20130194204A1
• Filed: 05/22/2012
• Published: 08/01/2013
• Est. Priority Date: 01/26/2012
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Sung-Ku Kang
• Inventors: KANG, Sung-Ku, Kim, Hak-Sun, Jung, Tae-Hyeog, Cho, Sun-Haeng
• Application Number:
  US13/477,227
• Publication Number:
  US 20130194204A1
• Time in Patent Office: Days
• US Class Current: 345/173
• 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: G06F 3/0443 using a single layer of sensing electrodes
• 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

Abstract

A display device integrated with a touch screen panel includes top and bottom substrates, each being divided into a display region, a first region on an outline of the display region, and a second region on an outline of the first region, pixels in the display region of the bottom substrate, pads in the second region of the bottom substrate, signal lines in the first region of the bottom substrate electrically coupling the pixels to the pads, sensing patterns in the display region of the top substrate, sensing lines in the first region of the top substrate and coupled to the sensing patterns, an auxiliary display unit in the first region of the top substrate that overlaps the sensing lines, and a window on a top surface of the top substrate that includes a decoration layer overlapping only a second region of the top substrate.

Claims

1. A display device integrated with a touch screen panel, comprising:

a top substrate and a bottom substrate, each of the top and bottom substrates being divided into a display region, a first region on an outline of the display region, and a second region on an outline of the first region;

a plurality of first pixels in the display region of the bottom substrate;

a plurality of pads in the second region of the bottom substrate, a plurality of signal lines in the first region of the bottom substrate electrically coupling the plurality of first pixels to the plurality of pads, respectively;

a plurality of sensing patterns in the display region of the top substrate;

a plurality of sensing lines in the first region of the top substrate and coupled to the sensing patterns, respectively;

an auxiliary display unit in the first region of the top substrate, the auxiliary display unit overlapping the sensing lines; and

a window on a top surface of the top substrate, the window including a decoration layer overlapping only a second region of the top substrate.

2. The display device as claimed in claim 1, wherein each of the first pixels in the display region of the bottom substrate includes an organic light emitting diode (OLED), thin film transistors (TFT), and a capacitor, the first pixels are being configured to be driven in a top emission method.

3. The display device as claimed in claim 2, wherein the auxiliary display unit in the first region of the top substrate includes a plurality of second pixels, the second pixels including OLEDs and are driven in a bottom emission method.

4. The display device as claimed in claim 1, further comprising a bonding pad unit with a plurality of bonding pads in the second region of the top substrate, the bonding pads being coupled to the sensing lines.

5. The display device integrated as claimed in claim 1, further comprising a sealing material contacting the second region in each of the top and bottom substrates, the top and bottom substrates being attached to each other via the sealing material.

6. The display device as claimed in claim 1, wherein the sensing patterns include:

first sensing cells adjacent to each other along a first direction;

first coupling lines coupling adjacent first sensing cells in the first direction;

second sensing cells adjacent to each other along a second direction; and

second coupling lines coupling adjacent second sensing cells in the second direction.

7. The display device as claimed in claim 6, wherein the first and second sensing cells are in a same plane.

8. The display device as claimed in claim 1, wherein the sensing patterns and the sensing lines are on an internal surface of the top substrate, the internal surface of the top substrate facing the bottom substrate.

9. The display device as claimed in claim 8, further comprising an insulating layer between the auxiliary display unit and the sensing lines.

10. The display device as claimed in claim 1, wherein the sensing patterns and the sensing lines are on an external surface of the top substrate, the external surface of the top substrate facing away from the bottom substrate.

11. The display device as claimed in claim 10, wherein the auxiliary display unit is on an internal surface of the top substrate, the internal surface of the top substrate facing the bottom substrate.

12. The display device as claimed in claim 1, wherein the top substrate is a thin film having a laminated structure of a plurality of organic and inorganic layers.

13. The display device as claimed in claim 12, wherein the laminated structure of the thin film includes an alternating arrangement of organic and inorganic layers.

14. The display device as claimed in claim 12, wherein each of the bottom substrate and the window includes a flexible material.

15. The display device as claimed in claim 14, wherein the flexible material is a polyimide based resin.

16. The display device as claimed in claim 1, wherein the display regions of the top and bottom substrates are aligned and completely overlap each other, the auxiliary display unit extending beyond the display region of the bottom substrate to surround the display region of the top substrate.

17. The display device as claimed in claim 1, wherein a total area of the display region on the top substrate and the auxiliary display unit is larger than a total area of the display region on the bottom substrate.

18. The display device as claimed in claim 1, wherein pixels in the auxiliary display unit and pixels in the display region of the bottom substrate face different directions.