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Backlight including patterned reflectors, diffuser plate, and method for fabricating the backlight

A patterned, reflector technology, applied in the field of backlight including patterned reflector, diffuser plate and backlight manufacturing

Pending Publication Date: 2021-08-17
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical distance (optical distance; OD) (for example, from at least 10 mm to typically about 20 to 30 mm) between the LED and the diffuser plate or film in such configurations still results in an undesirably high total display thickness, and / or These configurations can create unwanted optical losses as the thickness of the backlight is reduced
While edge-lit backlights can be thinner, the light from each LED can be spread over a large area of ​​the light guide plate so that turning off individual LEDs or groups of LEDs can have only minimal impact on dynamic contrast

Method used

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  • Backlight including patterned reflectors, diffuser plate, and method for fabricating the backlight
  • Backlight including patterned reflectors, diffuser plate, and method for fabricating the backlight
  • Backlight including patterned reflectors, diffuser plate, and method for fabricating the backlight

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Embodiment Construction

[0048] Reference will now be made in detail to the embodiments of the invention which are illustrated in the accompanying drawings. Wherever possible, like reference numbers are used throughout the drawings to refer to the same or like parts. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[0049] Ranges can be expressed herein as from "about" one particular value, and / or to "about" another particular value. When expressing such a range, another embodiment includes from the one particular value and / or to the other particular value. Similarly, when values ​​are expressed as approximations, by use of the antecedent "about," it will be understood that the particular value forms another embodiment. It is further to be understood that the endpoints of each of the ranges are valid with respect to the other endpoints and independently of the other endpoints.

[0050] Directional terms, suc...

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Abstract

A backlight includes a substrate, a plurality of light sources, a reflective layer, a light guide plate, a pattern of light extractors, a plurality of patterned reflectors, and a diffusive layer. The plurality of light sources are proximate the substrate. The reflective layer is on the substrate. The light guide plate is proximate the plurality of light sources. The pattern of light extractors is on the light guide plate. The plurality of patterned reflectors are on the light guide plate. Each patterned reflector is aligned with a corresponding light source. The diffusive layer is on the light guide plate.

Description

technical field [0001] According to the patent law, this application claims the international patent application No. PCT / RU2019 / 000722 filed on October 9, 2019, the international patent application No. PCT / RU2019 / 000250 filed on April 15, 2019 and the November 2018 application International Patent Application No. PCT / RU2018 / 000738 filed on March 12, the content of the foregoing cases is the basis of the present invention and is incorporated herein by reference in its entirety. [0002] The present invention generally relates to backlights for displays. More particularly, the present invention relates to backlights that include patterned reflectors. Background technique [0003] Liquid crystal displays (LCDs) are commonly used in various electronic devices, such as mobile phones, laptop computers, electronic tablet computers, televisions, and computer monitors. LCDs are light valve-type displays in which the display panel includes an array of individually addressable light ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02B5/02G02B6/00G02F1/1334
CPCG02B5/0205G02B17/002G02B17/0668G02B6/0055G02B6/0031G02B6/0043G02B6/0061G02B6/0068G02F1/133605G02F1/133614G02B6/0051G02B5/0242G02B6/0065G02F1/1334G02F1/1335G02F1/133524G02F1/133606
Inventor 柯克·理查德·艾伦F·D·基瑟列夫德米特里·弗拉迪斯拉沃维奇·库森科夫克里斯托弗·迈克尔·林恩帕梅拉·阿琳·玛瑞伊米向东S·C·波拉德尼古拉·蒂莫菲耶维奇·蒂莫菲耶夫安德里·瓦朗蒂西亚
Owner CORNING INC