US 11,698,574 B2
Keyboard with projection device
Hao Jiang, Guangdong (CN); and Feng Lin, Guangdong (CN)
Assigned to Shenzhen Ajazz Tongchuang Electronic Technology Co., Ltd., Shenzhen (CN)
Filed by Hao Jiang, Guangdong (CN); and Feng Lin, Guangdong (CN)
Filed on Nov. 6, 2020, as Appl. No. 17/90,914.
Prior Publication US 2021/0055639 A1, Feb. 25, 2021
Int. Cl. G03B 21/134 (2006.01); H01H 13/83 (2006.01); G06F 3/02 (2006.01); H01H 13/86 (2006.01); G03B 21/16 (2006.01); H01H 13/702 (2006.01)
CPC G03B 21/134 (2013.01) [G03B 21/16 (2013.01); G06F 3/021 (2013.01); H01H 13/86 (2013.01); H01H 13/702 (2013.01); H01H 13/83 (2013.01); H01H 2223/04 (2013.01); H01H 2239/058 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A keyboard comprising:
a frame board;
a base board complimentarily secured to the frame board;
a membrane circuit board disposed in a space defined by the frame board and the base board;
a support board disposed on the membrane circuit board and including a plurality of holes;
a switch board disposed on the support board and including a plurality of switches disposed in the holes respectively;
a plurality of keys disposed on the switch board;
a lithium battery disposed on the base board;
a control circuit board disposed on the lithium battery;
a projection device disposed in the space defined by the frame board and the base board;
a rectangular groove disposed on the right side of the frame board;
a rectangular outer screen disposed on the groove;
an inner screen disposed on the control circuit board and below the outer screen;
a plurality of lights disposed between the outer screen and a rear edge of the frame board;
a transparent cover disposed on the lights;
a plurality of vent-holes disposed to the left of the lights wherein the projection device is disposed below the vent-holes;
a plurality of key holes disposed between the vent-holes and the outer screen;
a plurality of first function keys projecting out of the plurality of key holes respectively;
an opening disposed between the lights and the right side of the frame board;
a second function key projecting out of the opening;
a recess disposed on the right side of the base board with the lithium battery disposed therein;
a projection hole disposed on the rear edge of the frame board and aligned with the projection device; and
a port disposed on the right side of the frame board.