ELECTRONIC DISPLAY WITH HIGH PERFORMANCE CHARACTERISTICS

• US 20180048849A1
• Filed: 08/10/2016
• Published: 02/15/2018
• Est. Priority Date: 08/10/2016
• Status: Abandoned Application

• Current Assignee: Manufacturing Resources International, Inc.
• Original Assignee: Manufacturing Resources International, Inc.
• Inventors: Dunn, William
• Application Number:
  US15/233,807
• Publication Number:
  US 20180048849A1
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133311 Environmental protection, e.g. against dust or humidity
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G09G 2320/041 Temperature compensation
• CPC Class Codes: G09G 2320/043 Preventing or counteracting the effects of ageing
• CPC Class Codes: G09G 3/36 using liquid crystals
• CPC Class Codes: H04N 5/63 Generation or supply of power specially adapted for television receivers
• CPC Class Codes: H04N 5/64 Constructional details of receivers, e.g. cabinets or dust covers furniture aspects of television cabinets A47B81/06

Abstract

The exemplary embodiments herein provide an electronic display having high brightness through continuation operation over a period of 5 to 10 years or more. High ambient temperatures do not affect the luminance output of the exemplary displays. Off angle viewing only affects the luminance output by the display minimally when compared to prior art electronic displays. The displays can produce at least 98% LED efficacy over the span of up to 15 years of continuous operation in an outdoor environment. Exemplary displays maintain at least 85% NTSC color saturation for up to 10 years of continuous operation in an outdoor environment.

Claims

1. An apparatus, comprising:

a liquid crystal display in a weatherproof chassis where said display is viewable through said chassis, said display having a display size between 50 and 55 inches measured diagonally;

an LED backlight in said chassis and behind said display;

a power module electrically connected to said backlight; and

a video player electrically connected to said power module and said display;

wherein said display is adapted to achieve luminance levels of at least approximately 3500 nits while a solar load of 1250 watts/m² is applied to the display, and the display draws no more than 609 watts of power when exposed for at least one hour to an ambient temperature of 50°

C.

2. An apparatus, comprising:

a liquid crystal display in a weatherproof chassis where said display is viewable through said chassis, said display having a display size between 80 and 86 inches measured diagonally;

an LED backlight in said chassis and behind said display;

a power module electrically connected to said backlight; and

a video player electrically connected to said power module and said display;

wherein said display is adapted to achieve luminance levels of about 3500 nits, while the ambient temperatures surrounding the display are between about 25°

C. and about 50°

C., and the power drawn by the display does not exceed 2,365 watts.

3. The apparatus of claim 2 wherein:

the apparatus maintains the luminance level even after said apparatus has been operating for at least one hour in an outdoor environment of at least 50°

C.

4. The apparatus of claim 2 wherein:

the apparatus maintains the luminance level even when measured at angles up to 10 degrees from perpendicular to the plane of the display.

5. The apparatus of claim 2 wherein:

the apparatus maintains the luminance level even after 3 years of operation in an outdoor environment.

6. The apparatus of claim 2 wherein:

the apparatus draws less than 1,900 watts when exposed to ambient temperatures of approximately 25°

C.

7. The apparatus of claim 2 wherein:

the apparatus maintains the luminance level with no visible degradation when viewed with polarized sunglasses.

8. The apparatus of claim 2 wherein:

the apparatus maintains the luminance level with no solar clearing.

9. An apparatus, comprising:

a liquid crystal display in a weatherproof chassis where said display is viewable through said chassis;

an LED backlight in said chassis and behind said display;

a power module electrically connected to said backlight; and

a video player electrically connected to said power module and said display;

wherein said display is adapted to achieve luminance levels of 3500 nits or greater for up to 5 years of continuous operation in an outdoor environment, with an ambient environment between 25°

C. and 55°

C.

10. The apparatus of claim 9 wherein

the apparatus maintains said luminance level at viewing angles from zero to 10 degrees off-angle viewing.

11. The apparatus of claim 9 wherein:

the apparatus maintains at least 95 LED efficacy through the 5 years of continuous operation in an outdoor environment.

12. The apparatus of claim 9 wherein:

the apparatus maintains a color saturation of at least 85% NTSC through the 5 years of continuous operation in an outdoor environment.

13. The apparatus of claim 9 wherein:

the apparatus maintains a color saturation of at least 85% NTSC in ambient lighting conditions varying from zero lux to 50,000 lux.

14. The apparatus of claim 9 wherein:

the apparatus maintains a contrast ratio of at least 150 through the 5 years of continuous operation in an outdoor environment.

15. The apparatus of claim 9 wherein:

the apparatus maintains a contrast ratio of at least 150 through ambient lighting conditions varying from zero lux to 50,000 lux.

16. An apparatus, comprising:

a liquid crystal display in a weatherproof chassis where said display is viewable through said chassis;

an LED backlight in said chassis and behind said display;

a power module electrically connected to said backlight; and

a video player electrically connected to said power module and said display;

wherein said display is adapted to achieve luminance levels of 3500 nits within an ambient environment between 25°

C. and 55°

C. and at viewing angles between zero degrees and 10 degrees off-angle.

17. The apparatus of claim 16 wherein:

the apparatus maintains said performance characteristics through 5 years of continuous operation in an outdoor environment.

18. The apparatus of claim 16 wherein:

the apparatus maintains at least 95 LED efficacy through the 5 years of continuous operation in an outdoor environment.

19. The apparatus of claim 16 wherein:

the apparatus maintains the luminance level of 3500 nits with no solar clearing.

20. The apparatus of claim 16 wherein:

the apparatus maintains the luminance level of 3500 nits with no degradation in image quality when viewed with polarized sunglasses.