Patent ID: 11915660
Assignee: SAVANT TECHNOLOGIES LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 17:
18. A method of controlling a light-emitting device for a display screen, wherein the light-emitting device comprises a plurality of light sources distributed on one or more strips, wherein several light sources among the plurality of light sources are arranged on each strip, the several light sources are electrically connected in a matrix manner in circuit, and each row and each column of the matrix are respectively provided with a control line to receive a corresponding control signal, and the control method comprises:
acquiring a video signal from a signal source of the display screen, wherein the video signal is provided to the display screen for display;
determining color and/or brightness information of each light source among the plurality of light sources according to the video signal, wherein each light source corresponds to a predetermined partial pixel area in the outermost periphery of a display area of the display screen; and
for each matrix of the one or more matrices associated with the one or more strips, controlling each row or each column of light sources in the matrix to emit light according to the color and/or brightness information of corresponding display position within one light-emitting period.