ORGANIC LIGHT EMITTING DIODE DISPLAY AND MANUFACTURING METHOD THEREOF

• US 20110050648A1
• Filed: 08/25/2010
• Published: 03/03/2011
• Est. Priority Date: 08/27/2009
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: LEE, Jaedo, Jung, Younghee
• Granted Patent: US 8,759,145 B2
• Time in Patent Office: Days
• US Class Current: 345/175
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/042 by opto-electronic means

Abstract

An organic light emitting diode display comprises: a display panel; a touch screen panel disposed on a display surface of the display panel; a sensing unit for sensing a position through the touch screen panel; and a polarizing plate disposed on the touch screen panel, wherein the touch screen panel is attached to the display surface area of the display panel with an air layer provided therebetween.

Claims

1. An organic light emitting diode display comprising:

a display panel;

a touch screen panel disposed on a display surface of the display panel;

a sensing unit for sensing a position through the touch screen panel; and

a polarizing plate disposed on the touch screen panel,

wherein the touch screen panel is attached to the display surface area of the display panel with an air layer provided therebetween.

2. The organic light emitting diode display of claim 1, wherein the polarizing plate comprises:

a phase difference delay film disposed on the touch screen panel; and

a polarizing film disposed on the phase difference delay film.

3. The organic light emitting diode display of claim 2, wherein the phase difference delay film has an optical axis having a phase difference of λ

/4 with respect to incident light.

4. The organic light emitting diode display of claim 1, wherein the base substrate is made of glass.

5. The organic light emitting diode display of claim 1, wherein the polarizing plate has a reflectance of 0.1% to 4% as the light incident from the outside is reflected upon hitting the surfaces of the transparent electrodes included in the touch screen panel.

6. The organic light emitting diode display of claim 1, wherein the touch screen panel comprises:

a base substrate attached onto the display surface of the display panel; and

transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel, and connected to the sensing unit through different lines from each other, at least two pairs of the electrodes constituting one group.

7. The organic light emitting diode display of claim 1, wherein the touch screen panel comprises:

a base substrate attached onto the display surface of the display panel;

first transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel;

an insulation layer formed on the first transparent electrodes; and

second transparent electrodes formed on the insulation layer,

wherein the first and second transparent electrodes are connected to the sensing unit through different lines from each other.

8. The organic light emitting diode display of claim 1, wherein the touch screen panel comprises:

a base substrate attached onto the display surface of the display panel;

first transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel; and

second transparent electrodes formed on a second surface of the base substrate facing the display surface of the display panel,

wherein the first and second transparent electrodes are connected to the sensing unit through different lines from each other.

9. The organic light emitting diode display of claim 1, wherein the touch screen panel comprises:

a first base substrate attached onto the display surface of the display panel;

first transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel; and

a second base substrate attached onto the first surface of the first base substrate; and

second transparent electrodes formed on a first surface of the second base substrate not facing the first transparent electrodes,

wherein the first and second transparent electrodes are connected to the sensing unit through different lines from each other.

10. A manufacturing method of an organic light emitting diode display, the method comprising:

forming a display panel;

forming a touch screen panel on a display surface of the display panel;

forming a sensing unit to sense a position through the touch screen panel; and

forming a polarizing plate on the touch screen panel,

wherein the touch screen panel is attached to the display surface area of the display panel with an air layer provided therebetween.

11. The method of claim 10, wherein the polarizing plate comprises:

a phase difference delay film disposed on the touch screen panel; and

a polarizing film disposed on the phase difference delay film.

12. The method of claim 11, wherein the phase difference delay film has an optical axis having a phase difference of λ

/4 with respect to incident light.

13. The method of claim 10, wherein the base substrate is made of glass.

14. The method of claim 10, wherein the polarizing plate has a reflectance of 0.1% to 4% as the light incident from the outside is reflected upon hitting the surfaces of the transparent electrodes included in the touch screen panel.

15. The method of claim 10, wherein the touch screen panel comprises:

a base substrate attached onto the display surface of the display panel; and

transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel, and connected to the sensing unit through different lines from each other, at least two pairs of the electrodes constituting one group.

16. The method of claim 10, wherein the touch screen panel comprises:

a base substrate attached onto the display surface of the display panel;

first transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel;

an insulation layer formed on the first transparent electrodes; and

second transparent electrodes formed on the insulation layer,

wherein the first and second transparent electrodes are connected to the sensing unit through different lines from each other.

17. The method of claim 10, wherein the touch screen panel comprises:

a base substrate attached onto the display surface of the display panel;

first transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel; and

second transparent electrodes formed on a second surface of the base substrate facing the display surface of the display panel,

wherein the first and second transparent electrodes are connected to the sensing unit through different lines from each other.

18. The method of claim 10, wherein the touch screen panel comprises:

a first base substrate attached onto the display surface of the display panel;

first transparent electrodes formed on a first surface of the base substrate not facing the display surface of the display panel; and

a second base substrate attached onto the first surface of the first base substrate; and

second transparent electrodes formed on a first surface of the second base substrate not facing the first transparent electrodes,

wherein the first and second transparent electrodes are connected to the sensing unit through different lines from each other.