Light emitting device and method for manufacturing the same

A light emitting device comprising:

• a substrate having a top surface and a bottom surface opposite from the top surface, the substrate including a lighting area and a peripheral area surrounding the lighting area in the top surface of said substrate;
• a positive electrode land for external connection on the top surface and a negative electrode land for external connection on the top surface, said positive and negative electrode lands being provided on the peripheral area of said substrate;
• wiring patterns including a cathode wiring pattern and an anode wiring pattern disposed on the top surface of said substrate and connected to said positive and negative electrode lands, respectively;
• a light emitting unit formed on the lighting area of said substrate, including a plurality of light emitting elements electrically connected between the cathode and anode wiring patterns, and a sealing member for sealing and continuously covering the plurality of light emitting elements, the sealing member being located within the lighting area, wherein
• the plurality of light emitting elements have rectangular shape, respectively,
• the plurality of light emitting elements comprise a first light emitting element, a second light emitting element, a third light emitting element and a fourth light emitting element,
• the anode wiring pattern is electrically connected with the first light emitting element, the first light emitting element is electrically connected in series with the second light emitting element, the second light emitting element is electrically connected with the cathode wiring pattern,
• the anode wiring pattern is electrically connected with third light emitting element, the third light emitting element is electrically connected in series with the fourth light emitting element, and the fourth light emitting element is electrically connected with the cathode wiring pattern,
• the first light emitting element and the second light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another, the third light emitting element and the fourth light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another,
• the first light emitting element and the third light emitting element are disposed such that long side faces thereof oppose one another, and the second light emitting element and the fourth light emitting element are disposed such that long side faces thereof oppose one another.

A light emitting device comprising:

• a substrate having a top surface and a bottom surface opposite from the top surface, the substrate including a lighting area and a peripheral area surrounding the lighting area in the top surface of said substrate;
• a positive electrode land for external connection on the top surface and a negative electrode land for external connection on the top surface, said positive and negative electrode lands being provided on the peripheral area of said substrate;
• a light emitting unit formed on the lighting area of said substrate, including a plurality of light emitting elements, and a sealing member for sealing and continuously covering the plurality of light emitting elements, the sealing member being located within the lighting area, wherein
• the plurality of light emitting elements have rectangular shape, respectively,
• the plurality of light emitting elements comprise a first light emitting element, a second light emitting element, a third light emitting element, a fourth light emitting element, a fifth light emitting element and a sixth light emitting element,
• the positive electrode land is electrically connected with the first light emitting element, the first light emitting element is electrically connected in series with the second light emitting element, the second light emitting element is electrically connected in series with the third light emitting element, and the third light emitting element is electrically connected with the negative electrode land,
• the positive electrode land is electrically connected with the fourth light emitting element, the fourth light emitting element is electrically connected in series with the fifth light emitting element, the fifth light emitting element is electrically connected in series with the sixth light emitting element, and the sixth light emitting element is electrically connected with the negative electrode land,
• the first light emitting element and the second light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another, the second light emitting element and the third light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another, and the first light emitting element and the third light emitting element are disposed such that short side faces thereof oppose one another,
• the fourth light emitting element and the fifth light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another, the fifth light emitting element and the sixth light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another, and the fourth light emitting element and the sixth light emitting element are disposed such that short side faces thereof oppose one another,
• the first light emitting element and the fourth light emitting element are disposed such that long side faces thereof oppose one another, the second light emitting element and the fifth light emitting element are disposed such that long side faces thereof oppose one another, and the third light emitting element and the sixth light emitting element are disposed such that long side faces thereof oppose one another.

A light emitting device comprising:

• a substrate having a top surface and a bottom surface opposite from the top surface, the substrate including a lighting area and a peripheral area surrounding the lighting area in the top surface of said substrate;
• a positive electrode land for external connection on the top surface and a negative electrode land for external connection on the top surface, said positive and negative electrode lands being provided on the peripheral area of said substrate;
• a light emitting unit formed on the lighting area of said substrate, including a plurality of light emitting elements, and a sealing member for sealing and continuously covering the plurality of light emitting elements, the sealing member being located within the lighting area, wherein
• the plurality of light emitting elements have rectangular shape, respectively,
• the plurality of light emitting elements comprise a first light emitting element, a second light emitting element, a third light emitting element and a fourth light emitting element,
• the positive electrode land is electrically connected with the first light emitting element, the first light emitting element is electrically connected in series with the second light emitting element, the second light emitting element is electrically connected with the negative electrode land,
• the positive electrode land is electrically connected with third light emitting element, the third light emitting element is electrically connected in series with the fourth light emitting element, and the fourth light emitting element is electrically connected with the negative electrode land,
• the first light emitting element and the second light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another, the third light emitting element and the fourth light emitting element are disposed to be mutually shifted such that short side faces thereof do not oppose one another,
• the first light emitting element and the third light emitting element are disposed such that long side faces thereof oppose one another, and the second light emitting element and the fourth light emitting element are disposed such that long side faces thereof oppose one another.