Organic light emitting device

1 . An organic light emitting device, comprising:

a substrate; and

an organic light emitting diode positioned on the substrate and including:

a first electrode;

a second electrode facing the first electrode;

a first emitting material layer positioned between the first and second electrodes and including (i) a first host of an anthracene derivative and (ii) a first dopant of a boron derivative; and

an electron blocking layer including an electron blocking material and positioned between the first electrode and the first emitting material layer,

wherein an anthracene core of the first host is deuterated,

wherein the first host includes one of the compounds represented by Formula 2:

wherein the first dopant is represented by Formula 3:

wherein in Formula 3, each of R 11 to R 14 , each of R 21 to R 24 , each of R 31 to R 35 and each of R 41 to R 45 is selected from the group consisting of hydrogen, deuterium, C1 to C10 alkyl, C6 to C30 aryl, C6 to C30 arylamino and C5 to C30 heteroaryl,

wherein R 51 is selected from the group consisting of C12 to C30 arylamino unsubstituted or substituted with at least one of deuterium and C1 to C10 alkyl; and non-substituted or deuterated C5 to C30 heteroaryl,

wherein the electron blocking material is one of the compounds represented by Formula 6:

2 . The organic light emitting device of claim 1 , wherein the organic light emitting diode further includes a hole blocking layer including a hole blocking material and positioned between the second electrode and the first emitting material layer,

wherein the hole blocking material is represented by Formula 7:

wherein each of Y 1 to Y 5 is independently CR 1 or N, and one to three of Y 1 to Y 5 is N,

wherein R 1 is independently hydrogen or C6 to C30 aryl group, and L is C6 to C30 arylene group,

wherein R 2 is C6 to C50 aryl group or C5 to C50 hetero aryl group, and R 3 is C1 to C10 alkyl group, or adjacent two of R 3 form a fused ring, and

wherein “a” is 0 or 1, “b” is 1 or 2, and “c” is an integer of 0 to 4.

3 . The organic light emitting device of claim 2 , wherein the hole blocking material is one of the compounds represented by Formula 8:

4 . The organic light emitting device of claim 1 , wherein the organic light emitting diode further includes a hole blocking layer including a hole blocking material and positioned between the second electrode and the first emitting material layer,

wherein the hole blocking material is represented by Formula 9:

wherein Ar is C10 to C30 arylene group, and

wherein R 81 is C6 to C30 aryl group unsubstituted or substituted with C1 to C10 alkyl group or C5 to C30 heteroaryl group unsubstituted or substituted with C1 to C10 alkyl group, and each of R 82 and R 83 is independently hydrogen, C1 to C10 alkyl group or C6 to C30 aryl group.

5 . The organic light emitting device of claim 4 , wherein the hole blocking material is one of the compounds represented by Formula 10:

6 . The organic light emitting device of claim 1 , wherein the organic light emitting diode further includes:

a second emitting material layer including a second host of an anthracene derivative and a second dopant of a boron derivative and positioned between the first emitting material layer and the second electrode; and

a first charge generation layer between the first and second emitting material layers.

7 . The organic light emitting device of claim 6 , wherein an anthracene core of the second host is deuterated.

8 . The organic light emitting device of claim 1 , wherein the organic light emitting diode further includes:

a second emitting material layer emitting a blue light and positioned between the first emitting material layer and the second electrode; and

a first charge generation layer between the first and second emitting material layers.

9 . The organic light emitting device of claim 1 , wherein a red pixel, a green pixel and a blue pixel are defined on the substrate, and the organic light emitting diode corresponds to each of the red, green and blue pixels, and

wherein the organic light emitting device further includes:

a color conversion layer disposed between the substrate and the organic light emitting diode or on the organic light emitting diode and corresponding to the red and green pixels.

10 . The organic light emitting device of claim 6 , wherein the organic light emitting diode further includes:

a third emitting material layer emitting a yellow-green light and positioned between the first charge generation layer and the second emitting material layer; and

a second charge generation layer between the second and third emitting material layers.

11 . The organic light emitting device of claim 6 , wherein the organic light emitting diode further includes:

a third emitting material layer emitting a red light and a green light and positioned between the first charge generation layer and the second emitting material layer; and

a second charge generation layer between the second and third emitting material layers.

12 . The organic light emitting device of claim 6 , wherein the organic light emitting diode further includes:

a third emitting material layer including a first layer and a second layer and positioned between the first charge generation layer and the second emitting material layer, wherein the first layer emits a red light, and the second layer emits a yellow-green light; and

a second charge generation layer between the second and third emitting material layers.

13 . The organic light emitting device of claim 12 , wherein the third emitting material layer further includes a third layer emitting a green light.

14 . The organic light emitting device of claim 1 , wherein the organic light emitting diode further includes:

a second emitting material layer emitting a yellow-green light and positioned between the first emitting material layer and the second electrode; and

a first charge generation layer between the first and second emitting material layers.

15 . The organic light emitting device of claim 10 , wherein a red pixel, a green pixel and a blue pixel are defined on the substrate, and the organic light emitting diode corresponds to each of the red, green and blue pixels, and

wherein the organic light emitting device further includes:

a color filter layer disposed between the substrate and the organic light emitting diode or on the organic light emitting diode and corresponding to the red, green and blue pixels.

16 . The organic light emitting device of claim 1 , wherein a remainder of the first host, other than the anthracene core, is undeuterated.

17 . The organic light emitting device of claim 1 , wherein the first dopant includes one of the compounds represented by Formula 4: