IP Library Granted Patent US 11,513,393
Granted Patent B2
US 11,513,393 · App. 16/436,163 · Granted Nov 29, 2022

Display backlight illumination of a housing perimeter

Inventors: Guentaek Oh (Singapore, SG); Seen Yee Cindy Cheong (Singapore, SG); Lee Kyung Eun (Singapore, SG)
Assignee: Dell Products L.P.
G02F1/133621G02F1/133308G02F1/133553G02F1/0126G02F1/0147G02F1/133317
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Quick Facts
Patent No.
US 11,513,393
App. No.
16/436,163
Granted
Nov 29, 2022
Kind
B2
Abstract

An information handling system display manages direction of illumination from an internal backlight to illuminate the display perimeter. A translucent material disposed between a liquid crystal display panel and backlight manages a color of backlight illumination applied at the display perimeter. In various alternative embodiments, the translucent material selectively adjusts light transmission characteristics to adjust light that passes to a frontside of the liquid crystal display panel.

Claims (22)

1. An information handling system comprising: a processor operable to execute instructions to process information; a memory interfaced with the processor and operable to store the instructions and information; a graphics processor interfaced with the processor and operable to further process the information to defined visual images for presentation at a display; a display interfaced with the graphics processor and operable to accept the information to present the visual images at a display panel integrated in a display housing, the display panel having plural pixels illuminated with white light by a backlight assembly coupled at a backside of the display panel and within a perimeter of the display panel; and a frame of translucent material disposed between the display panel and backlight assembly at the backside perimeter, a frame of translucent material having a central opening, a frame of translucent material passing illumination from the backlight assembly towards the display housing outside the backside perimeter to provide illumination outside of the perimeter of the display panel.

2. The information handling system of claim 1 further comprising: a beveled surface formed in the housing between a frame of translucent material and a front of the display; wherein the beveled surface reflects illumination proceeding out of a frame of translucent material towards the front of the display at a frontside perimeter of the display panel.

3. The information handling system of claim 2 further comprising: a bezel disposed about the frontside perimeter of the display; wherein the beveled surface reflects illumination from a frame of translucent material to the bezel.

4. The information handling system of claim 1 wherein a frame of translucent material comprises a foam compressed by the display panel against the display housing and having an integrated color.

5. The information handling system of claim 1 further comprising: a color controller interfaced with a frame of translucent and operable to adjust a color filter quality of a frame of translucent material; wherein the color controller adapts the color of backlight that proceeds from the backlight assembly towards the display housing outside the backside perimeter.

6. The information handling system of claim 5 further comprising: a color manager associated with the graphics processor and operable to command a color to the color controller; wherein the graphics processor adapts the color filter quality of a frame of translucent material based upon content presented as visual images at the display panel.

7. The information handling system of claim 5 further comprising:

a timing controller integrated in the display housing and interfaced with the graphics process to scan the visual images as pixel values to the display panel;

wherein the timing controller commands the color controller to adjust the color filter quality to a color selected based upon anlysis of the pixel values.

8. The information handling system of claim 1 wherein a frame of translucent material further comprises a foam integrating a photochromatic pigment.

9. The information handling system of claim 1 wherein a frame of translucent material further comprises a liquid crystal interfaced with a voltage source, the voltage source adapting the voltage to adjust a color of illumination that passes through a frame of translucent material.

10. A method for managing illumination at an information handling system display, the method comprising: generating illumination with a backlight assembly; passing the illumination from the backlight assembly through a backside of a liquid crystal display panel to create a visual image at a frontside of the liquid crystal display panel, the backlight assembly having a perimeter disposed within a perimeter of the liquid crystal display panel; and leaking illumination from the backlight assembly to outside of the perimeter of the liquid crystal display panel through a frame of translucent material disposed at the perimeter of the liquid crystal display panel between the backlight assembly and liquid crystal display panel, a frame of translucent material having a central opening at the location of the liquid crystal display panel, a frame of translucent material adapting the backlight illumination to a color presented outside the perimeter of the liquid crystal display panel.

11. The method of claim 10 wherein: a frame of translucent material comprises a liquid crystal material; and the leaking further comprises applying a voltage to a frame of translucent material to adapt a color of illumination that illuminates from a frame of translucent material.

12. The method of claim 10 wherein: a frame of translucent material comprises a thermochromic pigment; and the leaking further comprises adjusting a temperature of a frame of translucent material to adapt illumination that illuminates from a frame of translucent material.

13. The method of claim 10 wherein: a frame of translucent material comprises a photochromatic pigment; and the leaking further comprises exposing the photochromatic pigment to ambient light to adjust an amount of light that passes through a frame of translucent material.

14. The method of claim 11 further comprising: reflecting illumination proceeding out of a frame of translucent material towards a frontside of the display at the liquid crystal display panel perimeter; and disposing a bezel at the liquid crystal display panel perimeter, the reflected illumination passing through the bezel.

15. The method of claim 10 wherein a frame of translucent material comprises a foam disposed between liquid crystal panel and the backlight.

16. A display comprising: a housing; a backlight coupled to the housing and configured to output illumination, the backlight having a backlight perimeter; a liquid crystal display panel having a display panel perimeter and coupled to the housing over the backlight, the backlight aligned to provide illumination through the liquid crystal display panel, the backlight perimeter disposed within the display panel perimeter; and a frame of translucent material having a perimeter around the liquid crystal display and a central opening at the liquid crystal display, a frame of translucent material disposed between the liquid crystal display and the housing at a backside of the liquid crystal display panel to allow illumination to proceed out from the backlight perimeter to a frontside of the liquid crystal display panel outside of the display panel perimeter to illuminate the housing perimeter outside of the liquid display panel perimeter.

17. The display of claim 16 wherein a frame of translucent material comprises a thermochromic pigment, the display further comprising a heating element disposed at a frame of translucent material to selectively heat the thermochromic pigment.

18. The display of claim 16 wherein a frame of translucent material comprises a photochromic pigment, a frame of translucent material exposed to ambient light that adapts illumination from the backlight that passes through a frame of translucent material.

19. The display of claim 16 further comprising: a reflective material disposed at the housing proximate a frame of translucent material and aligned to direct the backlight illumination towards the frontside perimeter; and a bezel disposed at the frontside perimeter.

20. The display of claim 19 wherein the bezel comprises a liquid crystal material configured to adapt the color of backlight proceeding from the reflective material.

Assignments (9)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053311/0169) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
Reel/Frame 060438/0742 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (050724/0571) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
Reel/Frame 060436/0088 →
RELEASE OF SECURITY INTEREST AT REEL 050406 FRAME 421 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: EMC CORPORATION; DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 058213/0825 →
SECURITY INTEREST Recorded Jun 5, 2020
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 053311/0169 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Oct 15, 2019
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 050724/0571 →
SECURITY AGREEMENT Recorded Sep 17, 2019
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 050406/0421 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2019
From: OH, GUENTAEK; CHEONG, SEEN YEE CINDY; EUN, LEE KYUNG
To: DELL PRODUCTS L.P.
Reel/Frame 049421/0251 →
Continuity (1)
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