| CPC G09G 3/3426 (2013.01) [G02F 1/133603 (2013.01); G02F 1/133612 (2021.01)] | 15 Claims |
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1. A display apparatus comprising:
a liquid crystal panel;
a plurality of light sources configured to emit light;
a substrate comprising a plurality of dimming blocks arranged in rows and columns, each dimming block of the plurality of dimming blocks comprising at least one light source of the plurality of light sources;
a first driving device configured to control a driving current applied to light sources in first dimming blocks of the plurality of dimming blocks, wherein the first dimming blocks are divided into a plurality of first groups, and each of the plurality of first groups includes a same number of first dimming blocks among the first dimming blocks of the plurality of dimming blocks; and
a second driving device configured to control a driving current applied to light sources in second dimming blocks of the plurality of dimming blocks, wherein the second dimming blocks are divided into a plurality of second groups, wherein the first dimming blocks, the second dimming blocks, the first driving device, and the second driving device are arranged on a first side of the substrate, wherein a number of the second dimming blocks included in each of the plurality of second groups is less than or equal to the number of the first dimming blocks included in each of the plurality of first groups, wherein a number of the second dimming blocks in each of at least one second group among the plurality of second groups is less than a number of the second dimming blocks in each of remaining second groups among the plurality of second groups, wherein a layout of the first dimming blocks included in each of the plurality of first groups is the same, wherein a layout of the second dimming blocks included in each of the at least one second group among the plurality of second groups is different from a layout of the second dimming blocks included in each of the remaining second groups among the plurality of second groups, wherein the layout of the first dimming blocks included in each of the plurality of first groups is different from a layout of the second dimming blocks included in each of the plurality of second groups, wherein the first driving device comprises a plurality of first driving circuits for applying driving currents to the first dimming blocks included in the plurality of first groups, wherein the second driving device comprises a plurality of second driving circuits for applying driving currents to the second dimming blocks included in the plurality of second groups, wherein a number of the second driving circuits for each of the plurality of second groups is less than or equal to a number of the first driving circuits for each of the plurality of first groups, wherein a number of the second driving circuits for each of the at least one second group among the plurality of second groups is a same as a number of the second driving circuits for each of the remaining second groups among the plurality of second groups, and wherein when the plurality of second driving circuits drive the second dimming blocks included in the plurality of second groups, at least one second driving circuit among the second driving circuits for each of the at least one second group among the plurality of second groups is deactivated while remaining second driving circuits among the second driving circuits for each of the at least one second group among the plurality of second groups apply the driving currents to the second dimming blocks included in each of the at least one second group among the plurality of second groups.
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