PATENT CLAIM ANALYSIS

Application Number: 15990494
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["257", "079000"]

Abstract:
Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.

Claim (Index 13):
A multi-layer semiconductor light emitting structure comprising:\n a first quantum confinement structure for emitting light of a first wavelength, the first quantum confinement structure comprising at least one first optically active layer disposed between barrier layers; a first intermediate carrier blocking layer; a second quantum confinement structure for emitting light of a second wavelength, the second quantum confinement structure comprising at least one second optically active layer disposed between barrier layers; a second intermediate carrier blocking layer; and a third quantum confinement structure for emitting light of a third wavelength, the third quantum confinement structure comprising at least one third optically active layer disposed between barrier layers, wherein the first intermediate carrier blocking layer is disposed between the first quantum confinement structure and the second quantum confinement structure and adjacent to a barrier layer of the first quantum confinement structure and adjacent to a barrier layer of the second quantum confinement structure and wherein the first intermediate carrier blocking layer comprises (1) a first band-gap greater than a band-gap of the adjacent barrier layer of the first quantum confinement structure and greater than a band-gap of the adjacent barrier layer of the second quantum confinement structure and (2) band-offsets relative to energy bands of the adjacent barrier layer of the first quantum confinement structure and relative to energy bands of the adjacent barrier layer of the second quantum confinement structure, wherein the second intermediate carrier blocking layer is disposed between a barrier layer of the second quantum confinement structure and a barrier layer of the third quantum confinement structure and adjacent to a barrier layer of the second quantum confinement structure and adjacent to a barrier layer of the third quantum confinement structure and wherein the second intermediate carrier blocking layer comprises (1) a second band-gap greater than a band-gap of the adjacent barrier layer of the second quantum confinement structure and greater than a band-gap of the adjacent barrier layer of the third quantum confinement structure and (2) band-offsets relative to energy bands of the adjacent barrier layer of the second quantum confinement structure and relative to energy bands of the adjacent barrier layer of the third quantum confinement structure, wherein the first, second and third quantum confinement structures emitting primary colors of red, green and blue, respectively, and wherein the first and second intermediate carrier blocking layers each comprise a composition that is undoped or doped of a single conductivity type to provide the first and second band-gaps and band-offsets selected to cause the first, second and third quantum confinement structures to emit light of the primary colors with a relative intensity to form white light.

Metadata:
- Claim Count in Document: 57.0
- Percentile: 93.0
- Lexical Diversity: 1.57895
- Patent Class: 257.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15173511', '13405590', '12419119', '13493430', '15945947']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8962157372879676
- 35 USC 102 Novelty (BERT): 0.6586806236876385
- Combined Prediction Score: 0.8724622259279347
- Mean Citation Score: 331.2403040000001
- Max Citation Score: 623.1042
- Similarity Product: 614.5615762863636

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test