Display device and cooking appliance having the same

Patent metadata

Field	Value
Publication number	US-9696040-B2
Application number	US-201514858215-A
Country	US
Kind code	B2
Filing date	Sep 18, 2015
Priority date	Dec 11, 2014
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A cooking appliance comprises a cabinet and a cooking unit provided in the cabinet and configured to perform cooking of food using a heat source. The cooking appliance also includes a display device configured to display cooking information for the cooking unit. The display device includes a display module configured to irradiate light of a first color to display information for a user and a circuit board arranged at a rear of the display module and configured to control the display module and supply power to the display module. The display device also includes a color conversion filter arranged at a front of the display module and configured to convert the light of the first color irradiated from the display module to light of a second color. The cooking appliance converts the color of light irradiated from the display module to a desired color by using the color conversion filter.

First claim

What is claimed is:

1. A cooking appliance comprising:
a cabinet that defines an external appearance of the cabinet;
at least one cooking unit provided in the cabinet and configured to perform cooking of food using a heat source;
a display device configured to display cooking information carried out by the at least one cooking unit, the display device comprising:
a display module configured to irradiate light of a first color to display cooking information for the at least one cooking unit to a user;
a circuit board arranged at a rear of the display module and configured to control the display module and supply power to the display module; and
a color conversion filter arranged at a front of the display module and configured to convert the light of the first color irradiated from the display module to light of a second color; and

a display holder arranged between the display module and the circuit board and configured to fix the display module onto the circuit board and fix the color conversion filter to the front of the display module.

2. The cooking appliance according to claim 1 , wherein the display module includes a vacuum fluorescent display (VFD).

3. The cooking appliance according to claim 1 , wherein the color conversion filter includes polycarbonate (PC), or ABS material of a synthetic resin.

4. The cooking appliance according to claim 1 , wherein the color conversion filter is injection molded and has a third color that is different from the first color and the second color.

5. The cooking appliance according to claim 4 , wherein the third color is configured to convert the first color into the second color.

6. The cooking appliance according to claim 1 , wherein the first color is a green color, and the second color is a white color.

7. The cooking appliance according to claim 1 , further comprising a circuit board support arranged at a rear of the circuit board and configured to support the circuit board,
wherein the circuit board support includes a plurality of holes defined to emit light generated from the circuit board and the display module.

8. The cooking appliance according to claim 7 , further comprising a glass unit that is arranged at a front of the color conversion filter and that is coupled with the circuit board support,
wherein the color conversion filter, the display module, and the circuit board are sequentially arranged between the glass unit and the circuit board support.

9. The cooking appliance according to claim 1 , wherein the display holder includes a first body unit, and first clamp units extended from the first body unit, and the display module is fixed to the display holder at a front of the display holder through the first clamp units.

10. The cooking appliance according to claim 9 , wherein the first clamp units include a pair of first extension units extended from both sides in a length direction of the first body unit toward the color conversion filter, and a pair of first hook units that are provided respectively at free ends of the pair of first extension units and that are projected toward a center in the length direction of the first body unit.

11. The cooking appliance according to claim 10 , wherein each first hook unit is projected toward a front surface of the display module and configured to fix a position of the display module.

12. The cooking appliance according to claim 11 , wherein the color conversion filter includes a second body unit corresponding to the front surface of the display module and second clamp units extended from the second body unit, and the color conversion filter is fixed to the display holder at the front of the display module through the second clamp units.

13. The cooking appliance according to claim 12 , wherein the second clamp units include four second extension units extended from both sides in a length direction of the second body unit toward the display holder, and four second hook units provided respectively at free ends of the four second extension units and projected toward a center in the length direction of the second body unit.

14. The cooking appliance according to claim 13 , wherein the second hook units are connected onto four hook holder units provided in the display holder and configured to fix a position of the color conversion filter based on the connection of the second hook units with the four hook holder units provided in the display holder.

15. The cooking appliance according to claim 1 , wherein the at least one cooking unit includes a first cooking unit placed on the cabinet and configured to perform cooking using a heat source, and a second cooking unit provided inside the cabinet and configured to perform cooking using the heat source.

Assignees

• Lg Electronics Inc

Inventors

• Yoon Youngkook
• Jang Jaebong

Classifications

• F24C7/086

  touch control · CPC title

• H01J31/12

  with luminescent screen · CPC title

• A47J45/068

  Handles having indicating means, e.g. for temperature (A47J45/07 takes precedence) · CPC title

• F24C3/12

  Arrangement or mounting of control or safety devices · CPC title

• F24C7/082

  on ranges, e.g. control panels, illumination · CPC title