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

Claim 0:
1. 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
a control unit having output lines corresponding to one or more matrices associated with the one or more strips, wherein each output line is connected to a corresponding row control line or column control line in a corresponding matrix, and the control unit is configured to:
acquire a video signal from a signal source of the display screen, wherein the video signal is provided to the display screen for display;
determine color and 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, control 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.