Light emitting device having a plurality of light emitting cells

A light emitting device, comprising:nat least three pairs of half-wave light emitting units, each pair comprising a terminal of a first half-wave light emitting unit connected to a terminal of a second half-wave light emitting unit, the terminals comprising the same polarity, a polarity of the connected terminals of one half-wave light emitting unit pair being opposite to the polarity of the connected terminals of an adjacent half-wave light emitting unit pair;at least two full-wave light emitting units each connected to adjacent pairs of half-wave light emitting units; anda node connected to the at least two full-wave light emitting units and a first pair of half-wave light emitting units of the at least three pairs of half-wave light emitting units,wherein:the half-wave light emitting units and the full-wave light emitting units each comprise at least one light emitting cell;the half-wave light emitting units each comprise a first terminal and a second terminal;the full-wave light emitting units each comprise a third terminal comprising the same polarity as the first terminal and a fourth terminal comprising the same polarity as the second terminal;the third terminal of each full-wave light emitting unit being connected to the second terminal of adjacent half-wave light emitting units and the fourth terminal of each full-wave light emitting unit being connected to the first terminal of adjacent half-wave light emitting units;the two full-wave light emitting units are disposed on opposite sides of the node; andeach half-wave light emitting unit of the first pair of half-wave light emitting units is disposed on an opposite side of the node.

A light emitting device, comprising:na substrate;at least one first electrode pad arranged on the substrate;at least one second electrode pad arranged on the substrate;a plurality of half-wave light emitting cells arranged on the substrate;a plurality of full-wave light emitting cells arranged on the substrate;a plurality of connectors electrically connecting the half-wave light emitting cells and the full-wave light emitting cells; anda node having four of the connectors connected thereto, the node being connected to two full-wave light emitting units of the plurality of full-wave light emitting units and two half-wave light emitting units of the plurality of half-wave light emitting cells by the four connectors, respectively,wherein:the plurality of half-wave light emitting cells comprise at least two first branch half-wave light emitting cells and at least one first merge half-wave light emitting cell;the plurality of full-wave light emitting cells each are electrically connected to the at least two first branch half-wave light emitting cells and the at least one first merge half-wave light emitting cell;the at least two first branch half-wave light emitting cells, the at least one first merge half-wave light emitting cell, and the full-wave light emitting cells being configured to emit light during a first half period of alternating current (AC) power when an AC power is supplied to the first electrode pad and the second electrode pad;the two full-wave light emitting units are disposed on opposite sides of the node; andthe two half-wave light emitting unit are disposed on opposite sides of the node.

A light emitting device, comprising:na first row comprising a first light emitting cell and a second light emitting cell;a second row comprising a third light emitting cell and a fourth light emitting cell;a third row comprising a fifth light emitting cell and a sixth light emitting cell; anda first column comprising a seventh light emitting cell and an eighth light emitting cell,wherein:the seventh light emitting cell and the eighth light emitting cell are connected to the third light emitting cell and the fourth light emitting cell at a first node;the third light emitting cell is disposed on an opposite side of the first node from the fourth light emitting cell; andthe seventh light emitting cell is disposed on an opposite side of the first node from the eighth light emitting cell.