Control panel and washing machine having the same

• US 20080225016A1
• Filed: 01/14/2008
• Published: 09/18/2008
• Est. Priority Date: 03/12/2007
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Yong Sok
• Application Number:
  US12/007,689
• Publication Number:
  US 20080225016A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: D06F 2101/00 User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
• CPC Class Codes: D06F 2105/58 Indications or alarms to the control system or to the user
• CPC Class Codes: D06F 34/32 characterised by graphical features, e.g. touchscreens
• CPC Class Codes: H03K 17/9622 using a plurality of detectors, e.g. keyboard
• CPC Class Codes: H03K 2217/960755 Constructional details of capacitive touch and proximity switches
• CPC Class Codes: H03K 2217/960785 with illumination

Abstract

A control panel and a washing machine, capable of providing an aesthetic external appearance and preventing characters or symbols which indicate control functions from being erased and preventing the characters or symbols from being displayed when the operation stops or the control functions are not used. The control panel includes a semi-transparent cover, a film disposed behind the semi-transparent cover and printed with a plurality of characters or symbols, a detecting panel disposed behind the film and having a plurality of detecting members detecting a capacitance of a human body, a circuit board having a light emitting unit irradiating light onto the film to display the characters or the symbols of the film on a rear surface of the semi-transparent cover, and a guide member having a plurality of optical paths guiding light irradiated from the light emitting unit into each of the characters or the symbols of the film.

Claims

1. A control panel to control an operation of an apparatus, the control panel comprising:

a semi-transparent cover;

a film disposed behind the semi-transparent cover and printed with a plurality of characters or symbols;

a detecting panel disposed behind the film and having a plurality of detecting members to detect a capacitance of a human body;

a circuit board having a light emitting unit irradiating light onto the film to display the characters or the symbols of the film on a rear surface of the semi-transparent cover; and

a guide member having a plurality of optical paths guiding light irradiated from the light emitting unit into each of the characters or the symbols of the film.

2. The control panel as claimed in claim 1, wherein the light emitting unit includes a plurality of light emitting diodes disposed in the optical paths.

3. The control panel as claimed in claim 1, wherein the characters or the symbols displayed on the rear surface of the semi-transparent cover include characters and symbols displaying operational states of the apparatus, and characters or symbols indicating positions of the detecting members.

4. The control panel as claimed in claim 1, wherein the film is attached to a front surface of the detecting panel, and the detecting panel is attached to the rear surface of the semi-transparent cover.

5. A washing machine, comprising:

a control panel controlling an operation of the washing machine, the control panel comprising;

a semi-transparent cover;

a film disposed behind the semi-transparent cover and printed with a plurality of characters or symbols;

a detecting panel disposed behind the film, and having a plurality of detecting members to detect a capacitance of a human body;

a circuit board having a light emitting unit irradiating light onto the film to display the characters or the symbols of the film on a rear surface of the semi-transparent cover; and

a guide member having a plurality of optical paths guiding light irradiated from the light emitting unit into each of the characters or the symbols of the film.

6. The washing machine according to claim 5, wherein the light emitting unit includes a plurality of light emitting diodes disposed in the optical paths.

7. The washing machine according to claim 5, wherein the characters or symbols displayed on the rear surface of the semi-transparent cover include the characters or the symbols displaying operational states of the apparatus, and the characters or the symbols indicating positions of the detecting members.

8. The washing machine according to claim 5, wherein the film is attached to a front surface of the detecting panel, and the detecting panel is attached to the rear surface of the semi-transparent cover.

9. A control panel for a washing machine, comprising:

a cover to receive a user'"'"'s touch;

a film having at least one symbol printed thereon, the symbol being viewable through the cover; and

a detecting panel having at least one detecting member corresponding to each of the at least one symbol, the at least one detecting member detecting a capacitance of the user when the user touches the cover at the symbol.

10. The control panel according to claim 9, wherein the cover is semi-transparent.

11. The control panel according to claim 9, wherein the at least one symbol is an alpha-numeric character.

12. The control panel according to claim 9, further comprising a light emitting unit irradiating light onto the film and causing the at least one symbol to be displayed on the cover.

13. The control panel according to claim 12, further comprising a control unit causing the light emitting unit to irradiate the light when an operation of the washing machine is running and stopping the irradiation of the light when the operation ends.

14. The control panel according to claim 12, further comprising a control unit causing the light emitting unit to irradiate the light when the user touches the cover at a viewable position of the at least one symbol.