PATENT CLAIM ANALYSIS

Application Number: 16100511
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["345", "690000"]

Abstract:
Disclosed is an imaging directional backlight including an array of light sources, and a control system arranged to provide variable distribution of luminous fluxes, scaled inversely by the width associated with the respective light sources in the lateral direction, across the array of light sources. The luminous intensity distribution of output optical windows may be controlled to provide desirable luminance distributions in the window plane of an autostereoscopic display, a directional display operating in wide angle 2D mode, privacy mode and low power consumption mode. Image quality may be improved and power consumption reduced.

Claim (Index 26):
A directional display apparatus comprising:\n a display device comprising: a waveguide having an input end; an array of light sources disposed at different input positions in a lateral direction across the input end of the waveguide, the waveguide further comprising first and second, opposed guide surfaces for guiding light along the waveguide, the waveguide being arranged to direct input light from the light sources and output the input light through the first guide surface into optical windows in output directions distributed in a lateral direction to the normal to the first guide surface that are dependent on the input positions; and a transmissive spatial light modulator arranged to receive the output light from the first guide surface and to modulate it to display an image; and a control system arranged to selectively operate the light sources to direct light into varying optical windows, and to control the light sources with respective drive signals to output light with a substantially desired luminous flux distribution, the respective drive signals configured to compensate for an undesired variation in luminous flux per unit lateral distance across the array of light sources. A directional display apparatus according to  claim 26 , wherein the control system is arranged to control the light sources with the respective drive signals to output light with said substantially desired luminous flux distribution with the input positions across the input end that has a global maximum and reduces on either side of the global maximum.

Metadata:
- Claim Count in Document: 140.0
- Percentile: 96.0
- Lexical Diversity: 1.59375
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13896870', '15028694', '14186862', '13839552', '15290543']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6974384710852172
- 35 USC 102 Novelty (BERT): 0.6504108845550846
- Combined Prediction Score: 0.692735712432204
- Mean Citation Score: 413.94049000000007
- Max Citation Score: 532.98425
- Similarity Product: 517.3943834269047

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