Portable computer

• US 20100001975A1
• Filed: 07/02/2009
• Published: 01/07/2010
• Est. Priority Date: 07/04/2008
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd., Tsinghua University
• Original Assignee: Hon Hai Precision Industry Co., Ltd., Tsinghua University
• Inventors: Fan, Shou-Shan, Li, Qun-Qing, Jiang, Kai-Li
• Application Number:
  US12/459,544
• Publication Number:
  US 20100001975A1
• Time in Patent Office: Days
• US Class Current: 345/174
• 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 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 3/0447 Position sensing using the local deformation of sensor cells
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092

Abstract

A portable computer includes a display panel having a display surface and a touch panel. The touch panel is disposed on the display surface and comprises at least one transparent conductive layer. The transparent conductive layer includes a carbon nanotubes layer having a carbon nanotube film.

Claims

1. A portable computer, comprising:

a display panel having a display surface;

a body connected with the display panel; and

a touch panel disposed on the display surface of the display panel, the touch panel comprising at least one transparent conductive layer, the transparent conductive layer comprising a carbon nanotube structure.

2. The portable computer as claimed in claim 1, further comprises a passivation layer interposed between the display panel and the touch panel.

3. The portable computer as claimed in claim 1, wherein the transparent conductive layer is a free stranding carbon nanotube structure.

4. The portable computer as claimed in claim 1, wherein the carbon nanotube structure comprises a layer of carbon nanotube film, the carbon nanotube film comprises a plurality of carbon nanotubes, the carbon nanotubes are approximately parallel to each other.

5. The portable computer as claimed in claim 4, wherein the transparent conductive layer consists of the carbon nanotube film.

6. The portable computer as claimed in claim 4, wherein the carbon nanotubes of the carbon nanotube film are joined end to end by van deer Waals forces therebetween.

7. The portable computer as claimed in claim 4, wherein the carbon nanotubes are selected from the group consisting of single walled carbon nanotubes, double walled carbon nanotubes, and multi walled carbon nanotubes.

8. The portable computer as claimed in claim 1, wherein the carbon nanotube structure comprises a layer of carbon nanotube film, the carbon nanotube film comprises a plurality of carbon nanotubes, the carbon nanotubes are entangled with one another.

9. The portable computer as claimed in claim 8, wherein the transparent conductive layer consists of the carbon nanotube film.

10. The portable computer as claimed in claim 1, wherein the touch panel comprise a capacitive-type touch panel, the capacitive-type tough panel comprises a transparent substrate and at least two transparent electrodes;

the transparent conductive layer is disposed on the transparent substrate;

the at least two transparent electrodes are spaced from each other and electrically connected to the transparent conductive layer.

11. The portable computer as claimed in claim 10, wherein the transparent electrodes are fixed on the periphery of the transparent conductive layer via sliver paste.

12. The portable computer as claimed in claim 10, wherein the transparent electrodes consist of carbon nanotube film.

13. The portable computer as claimed in claim 10, wherein the transparent electrodes are made of conductive metal.

14. The portable computer as claimed in claim 10, wherein the capacitive-type touch panel comprises a transparent protective film disposed on the transparent conductive layer opposite to the transparent substrate.

15. The portable computer as claimed in claim 1, wherein the touch panel comprises a resistive-type touch panel, the resistive-type touch panel comprising a first electrode plate and a second electrode plate connected to the first electrode plate,

the first electrode plate comprising a first substrate defining a first surface, a first transparent conductive layer mounted on the first surface of the first substrate, and two first transparent electrodes fixed on the two ends of the first transparent conductive layer along a first direction;

the first transparent conductive layer comprises a carbon nanotube structure, the carbon nanotube structure comprising a plurality of carbon nanotubes arranged along a first direction;

the second electrode plate comprises a second substrate defining a second surface opposite to the display panel, a second transparent conductive layer mounted on the second surface of the second transparent substrate, and two second transparent electrodes fixed on the two ends of the first transparent conductive layer;

the second transparent conductive layer and the two second transparent electrodes of the second electrode plate are facing the first electrode plate;

the second transparent conductive layer comprises a carbon nanotube structure, the carbon nanotube structure comprising a plurality of carbon nanotubes arranged along a second direction, the second direction is approximately perpendicular to the first direction.

16. The portable computer as claimed in claim 15, wherein the resistive-type touch panel comprises an insulated pad interposed between the peripheries of the first and second electrode plates and to space the first and second electrodes apart.

17. The portable computer as claimed in claim 15, wherein the two first and second transparent electrodes are fixed on the opposite ends of the first and second transparent conductive layer, respectively.

18. The portable computer as claimed in claim 15, wherein the resistive-type touch panel comprises a plurality of transparent dot spacers sandwiched between the first and second electrode plates and to space the first and second electrode plates apart.

19. The portable computer as claimed in claim 15, wherein at least one transparent conductive layer consists of a carbon nanotube film.

20. The portable computer as claimed in claim 19, wherein the carbon nanotube film is selected from the group consisting of a drawn carbon nanotube film, a flocculated carbon nanotube film, and a pressed carbon nanotube film.

21. The portable computer as claimed in claim 19, wherein the carbon nanotube film is a drawn carbon nanotube film;

the carbon nanotubes in the drawn carbon nanotube film are oriented along a preferred orientation and approximately parallel to each other.

22. The portable computer as claimed in claim 19, wherein the carbon nanotube film is a flocculated carbon nanotube film that is porous and isotropic;

the carbon nanotubes of the flocculated carbon nanotube film are entangled with each other and uniformly dispersed in the flocculated carbon nanotube film;

adjacent carbon nanotubes in the flocculated carbon nanotube film are attracted by van der Waals attractive force.

23. The portable computer as claimed in claim 19, wherein the carbon nanotube film is a pressed carbon nanotube film;

the carbon nanotubes in the pressed carbon nanotube film are arranged along a same direction or arranged along different directions and rest upon each other.

24. The portable computer as claimed in claim 23, wherein an angle between a primary alignment direction of the carbon nanotubes in the pressed carbon nanotube film and a surface of the pressed carbon nanotube film is approximately 0 degrees to approximately 15 degrees.

25. The portable computer as claimed in claim 19, wherein the pressed carbon nanotube film are isotropic when the carbon nanotubes in the pressed carbon nanotube film are arranged along different directions.