Lg Display Co., Ltd.

Lg Electronics Inc.

Dong Jun You

Tae Gung Kim

Min Hoi Kim

A flicker reduction device of a display apparatus can include a frame memory configured to store image data of an input frame synchronized with an input frame frequency, a first circuit configured to output a first control signal when a plurality of fixed active periods based on a reference frame frequency are allocated within each input frame time corresponding to the input frame frequency and output a second control signal when only one fixed active period is allocated within each input frame time, and a second circuit configured to copy the image data of the input frame according to the first control signal and output image data of a plurality of input frames according to the reference frame frequency. The second circuit outputs the image data of the input frame according to the reference frame frequency without copying according to the second control signal.

Flicker reduction device of display apparatus and tiling display apparatus including the same

An infinitely expandable display apparatus includes a set board outputting image data having a first resolution and a plurality of display circuits connected to one another through an interface circuit based on a cascading scheme to display the image data, each of the plurality of display circuits including an application specific integrated circuit (ASIC) embedded therein, wherein each of the plurality of display circuits includes a plurality of slave display circuits generating unit arrangement coordinate information based on a connection of the interface circuit and a master display circuit scaling the image data having the first resolution based on the unit arrangement coordinate information and transferring the scaled image data to the plurality of slave display circuits.

Infinitely expandable display apparatus and driving method thereof

An apparatus and a method reduces charging time of a multi-battery with a plurality of battery units. A charging process and apparatus charges a first battery unit of a multi-battery, keeps checking whether a current charging the first battery unit reaches a prescribed value, selects and charges a selected second battery unit of the multi-battery along with the first battery unit if the preset value is reached, and charges the second battery unit with a limited maximum magnitude current when the first battery unit is completely charged. Dual-charging operations for both first and second battery units conducted in the present charging process can reduce total charging time of the multi-battery.

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Seoul, South Korea

Dong Jun You