DISPLAY UNIT AND ITS MANUFACTURING METHOD

• US 20140285738A1
• Filed: 06/09/2014
• Published: 09/25/2014
• Est. Priority Date: 10/01/2002
• Status: Abandoned Application

• Current Assignee: JOLED Inc.
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Iwase, Yuichi
• Application Number:
  US14/299,609
• Publication Number:
  US 20140285738A1
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: C09K 2323/00 Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G06F 1/1692 the I/O peripheral being a secondary touch screen used as control interface, e.g. virtual buttons or sliders
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens

Abstract

The invention provides a display unit which can realize reduction in thickness and weight of the display unit by omitting a void between a touch panel and a display panel, and its manufacturing method. Whole faces of the touch panel and the display panel are directly bonded together with an adhesive layer in between. The display panel has a structure wherein a driving substrate in which organic light emitting devices are formed and a sealing substrate are bonded together with an adhesive layer in between. The touch panel has a structure wherein a lower plastic film in which a transparent electrode is formed and a touch-side plastic film in which a transparent electrode is formed are layered so that the transparent electrodes are placed opposite. The display panel is constructed with only the driving substrate, and the organic light emitting devices are sealed by the touch panel instead of the sealing substrate. Therefore, thickness and weight of the display unit can be further reduced.

Claims

1. A display unit, comprising:

a display panel including a substrate on which a plurality of display devices are formed, and a protective film formed directly on both (a) the substrate and (b) the plurality of display devices, for protecting the plurality of display devices; and

a flexible touch panel which (a) is composed of plastic films, (b) has a whole face that is directly bonded to a whole face of the display panel with a first adhesive layer in between, and (c) detects contact with a suitable contact element thereon, wherein,

the entire face of the display panel includes a sealing panel formed directly on (a) a second adhesive layer and (b) at least one filter,

the first adhesive layer is in direct contact with both the sealing panel and one of the plastic films of the flexible touch panel,

each of the plurality of the display devices has an organic emitting layer made of an organic electro luminescence material,

the protective film seals the plurality of display devices from the flexible touch panel,

the plurality of display devices are isolated from the flexible touch panel, and

the at least one filter is configured to lower a reflectance of outside lights.

2. The display unit according to claim 1, wherein the touch panel that is composed of plastic films includes two plastic films, in which respective transparent electrodes are formed, that are layered such that the transparent electrodes are placed opposite to each other.

3. The display unit according to claim 1, wherein each organic emitting layer includes a light emitting layer between a first electrode and a second electrode, and the respective display device is an organic light emitting device which extracts the lights generated in the light emitting layer from the second electrode side.

4. The display unit according to claim 1, wherein the suitable contact element is a finger or a pen.

5. A display unit, comprising:

a display panel including a substrate on which a plurality of display devices are formed, and a protective film formed on the plurality of display devices, for protecting the plurality of display devices;

a touch panel bonded to the display panel with a first adhesive layer in between; and

a sealing panel sealing the plurality of the display devices, and formed on a second adhesive layer and at least one filter, wherein,

each of the plurality of the display devices has an organic emitting layer made of an organic electro luminescence material, and

the at least one filter is configured to lower a reflectance of outside lights.

6. The display unit according to claim 5, wherein each of the plurality of the display devices have a resonator structure.

7. The display unit according to claim 5, wherein the touch panel has a first transparent electrode and a second transparent electrode placed opposite to each other.

8. The display unit according to claim 5, wherein the touch panel is configured to detect a finger or a pen.

10. The display unit according to claim 5, wherein each of the plurality of the display devices have a resonator structure.

11. The display unit according to claim 5, wherein the touch panel has a first transparent electrode and a second transparent electrode placed opposite to each other.

12. The display unit according to claim 5, wherein the touch panel is configured to detect a finger or a pen.

9. A display unit, comprising:

a display panel including a substrate on which a plurality of display devices are formed, and a protective film formed on the plurality of display devices, for protecting the plurality of display devices; and

the touch panel is bonded on a side where the plurality of the display devices of the substrate are formed with a first adhesive layer in between, and configured to detect contact with a suitable contact element thereon, wherein,

the plurality of the display devices are sealed by the touch panel,

each of the plurality of the display devices has an organic emitting layer made of an organic electro luminescence material, and

the at least one filter is configured to lower a reflectance of outside lights.