Button input apparatus with display function and portable electronic device having the same

• US 20070029172A1
• Filed: 08/02/2006
• Published: 02/08/2007
• Est. Priority Date: 08/04/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Seong-woon, Park, Jun-ho, Kim, Yeun-bae, Choi, Chang-kyu, Hong, Sungi, Yim, Yillmyung, Yoo, Byungin, Hwang, Kwangll, Yang, Hongseok, Kim, Namwoo
• Granted Patent: US 7,294,794 B2
• Time in Patent Office: Days
• US Class Current: 200/1.B
• 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 1/1662 Details related to the integrated keyboard
• CPC Class Codes: G06F 3/0238 Programmable keyboards key guide holders G06F3/0224
• CPC Class Codes: H01H 13/83 characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
• CPC Class Codes: H01H 2219/012 programmable
• CPC Class Codes: H01H 2221/004 U-shaped openings surrounding keys
• CPC Class Codes: H01H 2221/016 Lever; Rocker
• CPC Class Codes: H01H 2221/07 transparent
• CPC Class Codes: H01H 2223/014 located in recess
• CPC Class Codes: H04M 1/23 Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof by improving visibility H04M1/22

Abstract

A button input apparatus with a display function, which generates a switch signal in response to a user'"'"'s press, and a portable electronic device having the same. The button input apparatus includes: a plurality of lever buttons each having a transparent window in at least a portion thereof, and one fixed edge on one side of the transparent window, so that the buttons are elastically vertically flexible; a switch substrate, which is disposed below the plurality of lever buttons, including openings respectively corresponding to the transparent windows, and generating a switch signal according to a motion of any of the plurality of lever buttons via a plurality of switches disposed to respectively correspond to elastic parts of the lever buttons; and a display panel, which provides an image in an area corresponding to each of the transparent windows, at least a portion of the display panel being disposed below the plurality of lever buttons.

Claims

1. A button input apparatus with a display function, which generates a switch signal in response to a user'"'"'s press, the apparatus comprising:

a plurality of lever buttons each having a transparent window in at least a portion thereof, and one fixed edge on one side of the transparent window, so that the buttons are elastically vertically flexible;

a switch substrate, which is disposed below the plurality of lever buttons, including openings respectively corresponding to the transparent windows, and generating a switch signal according to a motion of any of the plurality of lever buttons via a plurality of switches disposed to respectively correspond to elastic parts of the lever buttons; and

a display panel, which provides an image in an area corresponding to each of the transparent windows, at least a portion of the display panel being disposed below the plurality of lever buttons.

2. The apparatus of claim 1, wherein the plurality of lever buttons comprises:

a plurality of buttons each of which are individually separated; and

an elastic plate, which is a plate shaped member disposed below the plurality of buttons and comprises a plurality of elastic parts, a portion of the elastic plate which corresponds to the plurality of buttons being partially cut, and each of the elastic parts having an opening corresponding to each of the transparent windows.

3. The apparatus of claim 2, wherein each of the elastic parts comprises a free edge partially cut along an outline of each of the buttons and a fixed uncut edge, wherein, when the button is pressed, the free edge moves.

4. The apparatus of claim 2, wherein the elastic plate is a metal plate.

5. The apparatus of claim 2, wherein the elastic plate is a plastic plate.

6. The apparatus of claim 1, wherein the plurality of lever buttons comprises a single button plate partitioned into a plurality of button areas, one edge of each of the button areas being the fixed edge and other edges thereof being partially cut.

7. The apparatus of claim 6, wherein the plurality of lever buttons further comprises a button pad, which is disposed below the button plate and has a plurality of openings respectively corresponding to the transparent windows of the plurality of lever buttons.

8. The apparatus of claim 7, wherein a plurality of protrusions respectively corresponding to the plurality of switches is disposed on a rear surface of the button pad.

9. The apparatus of claim 1, wherein the plurality of lever buttons comprises:

a plurality of buttons which are individually separated; and

a support structure supporting a fixed edge of each of the plurality of buttons.

10. The apparatus of claim 9, wherein the plurality of lever buttons further comprises a button pad, which is disposed below the plurality of buttons and has a plurality of openings respectively corresponding to the transparent windows of the plurality of lever buttons, and

wherein the support structure is a portion of a switch substrate, which is disposed below the button pad and supports parts of the button pad corresponding to the fixed edges of the plurality of buttons.

11. The apparatus of claim 10, wherein a plurality of protrusions respectively corresponding to the plurality of switches is disposed on a rear surface of the button pad.

12. The apparatus of claim 1, wherein the switch substrate is disposed between the plurality of lever buttons and the display panel and has openings respectively corresponding to the transparent windows of the plurality of lever buttons.

13. The apparatus of claim 12, further comprising a reinforcement plate, which is disposed between the switch substrate and the display panel, has openings corresponding to the windows, and protects the display panel by supporting a rear surface of the switch substrate.

14. The apparatus of claim 1, wherein the switch substrate is adjacent to a perimeter of the display panel.

15. The apparatus of claim 14, further comprising a reinforcement structure, which is disposed below the switch substrate and supports a rear surface of the switch substrate.

16. The apparatus of claim 14, wherein the switch substrate is formed in one body with a printed circuit board (PCB) driving the display panel.

17. A portable electronic device comprising:

a plurality of lever buttons each having a transparent window in at least a portion thereof, and one fixed edge so that buttons are elastically vertically biased;

a switch substrate, which is disposed below the plurality of lever buttons, including openings respectively corresponding to the windows, and generating a switch signal according to a motion of any of the plurality of lever buttons via a plurality of switches disposed to respectively correspond to elastic parts of the lever buttons;

a display panel, which provides an image in an area corresponding to each of the transparent windows, at least a portion of the display panel being disposed below the plurality of lever buttons; and

a button display controller displaying images changed according to the switch signal in areas of the display panel corresponding to the transparent windows.

18. The portable electronic device of claim 17, wherein the plurality of lever buttons comprises:

a plurality of buttons which are individually separated; and

an elastic plate, which is a plate shaped member disposed below the plurality of buttons and comprises a plurality of elastic parts, a portion of the elastic plate which corresponds to the plurality of buttons being partially cut, and each of the elastic parts having an opening corresponding to each of the transparent windows.

19. The portable electronic device of claim 18, wherein each of the elastic parts comprises a free edge partially cut along an outline of each of the buttons and a fixed uncut edge, wherein, when the button is pressed, the free edge moves.

20. The portable electronic device of claim 18, wherein the elastic plate is a metal plate.

21. The portable electronic device of claim 18, wherein the elastic plate is a plastic plate.

22. The portable electronic device of claim 17, wherein the plurality of lever buttons comprises a single button plate partitioned into a plurality of button areas, one edge of each of the button areas being the fixed edge and other edges thereof being partially cut.

23. The portable electronic device of claim 22, wherein the plurality of lever buttons further comprises a button pad, which is disposed below the button plate and has a plurality of openings respectively corresponding to the transparent windows of the plurality of lever buttons.

24. The portable electronic device of claim 23, wherein a plurality of protrusions respectively corresponding to the plurality of switches is disposed on a rear surface of the button pad.

25. The portable electronic device of claim 17, wherein the plurality of lever buttons comprises:

a plurality of buttons each of which are individually separated; and

a support structure supporting a fixed edge of each of the plurality of buttons.

26. The portable electronic device of claim 25, wherein the plurality of lever buttons further comprises a button pad, which is disposed below the plurality of buttons and has a plurality of openings respectively corresponding to the transparent windows of the plurality of lever buttons, and

wherein the support structure is a portion of a switch substrate, which is disposed below the button pad and supports parts of the button pad corresponding to the fixed edges of the plurality of buttons.

27. The portable electronic device of claim 26, wherein a plurality of protrusions respectively corresponding to the plurality of switches is disposed on a rear surface of the button pad.

28. The portable electronic device of claim 17, wherein the switch substrate is disposed between the plurality of lever buttons and the display panel and has openings respectively corresponding to the windows of the plurality of lever buttons.

29. The portable electronic device of claim 28, further comprising a reinforcement plate, which is disposed between the switch substrate and the display panel, has openings respectively corresponding to the transparent windows, and protects the display panel by supporting a rear surface of the switch substrate.

30. The portable electronic device of claim 17, wherein the switch substrate is adjacent to a perimeter of the display panel.

31. The portable electronic device of claim 30, further comprising a reinforcement structure, which is disposed below the switch substrate and supports a rear surface of the switch substrate.

32. The portable electronic device of claim 30, wherein the switch substrate is formed in one body with a printed circuit board (PCB) driving the display panel.