Display device
AssigneeLG Electronics Inc.
InventorSungyun Lee
Life of this patent
Estimating the term…
Abstract
Disclosed is a display device. The display device of the present disclosure comprises: a carrier having a built-in battery and a display panel driven by receiving power from the batter, wherein the carrier has a power reception unit for charging the battery and a sensing unit for sensing the remaining battery amount; a cradle which approaches or moves away from the carrier, wherein the cradle has a power transmission unit for providing power to the power reception unit; and a control unit for controlling the distance between the carrier and the cradle and whether the power transmission unit operates, on the basis of the information about the remaining battery amount obtained from the sensing unit.
Claims14
A display device comprising:
- a carrier having a built-in battery and a display panel driven upon receiving power from the battery,
- wherein the carrier includes:
- a power receiving unit charging the battery,
- a detection unit detecting a remaining battery capacity,
- a front camera detecting whether a user is watching a screen of the display panel, and
- a speaker driven upon receiving power from the battery;
- a cradle moving toward or away from the carrier, wherein the cradle includes a power transmitting unit providing power to the power receiving unit;
- and
- a controller controlling output of a charging message indicating that the battery needs charging when the remaining battery capacity is less than a certain amount,
- wherein the front camera is provided at a front of the carrier,
- wherein the controller controls the display panel to output the charging message when it is determined that the user is watching the screen of the display panel during operation of the display panel, based on information obtained by the front camera, and
- wherein the controller controls the speaker to output the charging message when it is determined that the user is not watching the screen of the display panel during the operation of the display panel, based on information obtained by the front camera.
A display device comprising:
- a carrier having a built-in battery and a display panel driven upon receiving power from the battery, wherein the carrier includes a power receiving unit charging the battery, a detection unit detecting a remaining battery capacity, a speaker driven upon receiving power from the battery, and a communication unit able to communicate with an external terminal;
- a cradle includes a power transmitting unit providing power to the power receiving unit;
- and
- a controller controls at least one of the display panel, the speaker, and the terminal to output a charging message when the remaining battery capacity is less than a certain amount,
- wherein the controller controls at least one of the carrier and the cradle to be moved so that the power receiving unit and the power transmitting unit approach each other and controls the power transmitting unit to be operated, when a charge mode entry signal is received,
- wherein the controller controls the detection unit to stop operation when the charge mode entry signal is not received within a certain time or when a power saving mode entry signal is received,
- wherein the controller controls at least one of the display panel, the speaker, and the terminal to output a mode selection message requesting selection of any one of a first charge mode in which the cradle is moved toward the carrier and a second charge mode in which the carrier is moved toward the cradle, when the charge mode entry signal is input,
- wherein the carrier includes a first driving unit moving the carrier upon receiving power from the battery,
- wherein the cradle includes:
- an auxiliary battery providing power to the power transmitting unit;
- and
- a second driving unit moving the cradle upon receiving power from the auxiliary battery, and
- wherein the controller controls the second driving unit and the power transmitting unit to be operated when the first charge mode is selected, and controls the first driving unit and the power transmitting unit to be operated when the second charge mode is selected.
Dependencies are inferred from the claim text.