Button lighting module and button apparatus having the same
AssigneeKortek Corporation
InventorsJoong Won Lee, Ho Jun Kwak, Hyun Woo Lee, Tae Jung Yoon, Chan Hwan Kim
Life of this patent
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Abstract
A button lighting module is provided including: a light guide plate which has a button through-hole formed in a thickness direction to allow a button device configured to input a command to pass therethrough and has a light refractor provided around the button through-hole to refract a light path upward; and a light source which is configured to radiate light so that the light is incident on the light guide plate through an outer peripheral side surface of the light guide plate.
Claims10
A button lighting module comprising a light guide plate which has a button through-hole formed in a thickness direction to allow a button device configured to input a command to pass therethrough and has a light refractor provided around the button through-hole to refract a light path upward;
- and a light source which is configured to radiate light so that the light is incident on the light guide plate through an outer peripheral side surface of the light guide plate;
- wherein the light source includes:
- a plurality of light emitting diode (LED) packages configured to radiate light to the outer peripheral side surface of the light guide plate;
- and a LED circuit board configured to energizingly support the plurality of LED packages;
- wherein the plurality of LED packages comprise a first group of the LED packages and a second group of the LED packages not included in the first group, the first and second groups are disposed to face each other with the button through-hole disposed therebetween;
- and wherein the LED circuit board includes a first LED circuit board configured to support the first group of the LED package and a second LED circuit board configured to support the second group of the LED package;
- wherein each of the first and second groups are a side-surface light-emitting LED package that causes light to be projected from a side surface facing the outer peripheral side surface of the light guide plate;
- and wherein the first and second groups of LED packages are capable of being controlled independent of one another.
A button apparatus comprising a button lighting module including a light guide plate which has a button through-hole formed in a thickness direction and a light refractor provided around the button through-hole to refract a light path upward and a light source which is configured to radiate light so that the light is incident on the light guide plate through an outer peripheral side surface of the light guide plate;
- and a button device which has a push button configured to input a command upon being pressed and which is configured to pass through the button through-hole;
- wherein the light source includes a plurality of light emitting diode (LED) packages configured to radiate light to the outer peripheral side surface of the light guide plate;
- and a LED circuit board configured to energizingly support the plurality of LED packages;
- wherein the plurality of LED packages comprise a first group of the LED packages and a second group of the LED packages not included in the first group, the first and second groups are disposed to face each other with the button through-hole disposed therebetween;
- and wherein the LED circuit board includes a first LED circuit board configured to support the first group of the LED package and a second LED circuit board configured to support the second group of the LED package;
- wherein each of the first and second groups are aside-surface light-emitting LED package that causes light to be projected from a side surface facing the outer peripheral side surface of the light guide plate;
- and wherein the first and second groups of LED packages are capable of being controlled independent of one another.
Dependencies are inferred from the claim text.