Backlight module and display device

US9983435B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9983435-B2
Application numberUS-201514418617-A
CountryUS
Kind codeB2
Filing dateJan 16, 2015
Priority dateDec 31, 2014
Publication dateMay 29, 2018
Grant dateMay 29, 2018

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A backlight module and a display device are disclosed. The present disclosure relates to the technical field of display, whereby the technical problem of dark spots existing at the corners of the liquid crystal display device in the prior art can be solved. The backlight module comprises a reflective sheet and a plurality of light sources that are arranged on said reflective sheet, wherein the reflective sheet at edges and corners of said backlight module has a certain slope or curvature; and adjusting members, arranged at corners of said backlight module, so that the slope or curvature of the reflective sheet at the corners of said backlight module matches the slope or curvature of the reflective sheet at the edges of said backlight module.

First claim

Opening claim text (preview).

The invention claimed is: 1. A backlight module, comprising: a reflective sheet; a plurality of light sources that are arranged on said reflective sheet, wherein the reflective sheet at edges and corners of said backlight module has a certain slope or curvature; and adjusting members, arranged at corners of said backlight module, wherein the adjusting members are configured to adjust the slope or curvature of the reflective sheet at the corners of said backlight module so that the slope or curvature of the reflective sheet at the corners of said backlight module matches the slope or curvature of the reflective sheet at the edges of said backlight module, wherein said adjusting members are protrusions that are arranged below the reflective sheet at the corners of said backlight module. 2. The backlight module according to claim 1 , wherein said light sources are light-emitting diodes. 3. The backlight module according to claim 1 , wherein said backlight module is a direct type backlight module. 4. A display device, comprising a liquid crystal module and a backlight module, wherein said backlight module comprises: a reflective sheet and a plurality of light sources that are arranged on said reflective sheet, wherein the reflective sheet at edges and corners of said backlight module has a certain slope or curvature; and adjusting members, arranged at corners of said backlight module, wherein the adjusting members are configured to adjust the slope or curvature of the reflective sheet at the corners of said backlight module so that the slope or curvature of the reflective sheet at the corners of said backlight module matches the slope or curvature of the reflective sheet at the edges of said backlight module wherein said adjusting members are protrusions that are arranged below the reflective sheet at the corners of said backlight module. 5. The display device according to claim 4 , wherein said light sources are light-emitting diodes. 6. The display device according to claim 4 , wherein said backlight module is a direct type backlight module.

Assignees

Inventors

Classifications

  • with LEDs · CPC title

  • including specially adapted reflectors · CPC title

  • with provision for adjusting the curvature · CPC title

  • F21S8/00Primary

    Lighting devices intended for fixed installation (F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00) · CPC title

  • Point-like light sources · CPC title

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Frequently asked questions

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What does patent US9983435B2 cover?
A backlight module and a display device are disclosed. The present disclosure relates to the technical field of display, whereby the technical problem of dark spots existing at the corners of the liquid crystal display device in the prior art can be solved. The backlight module comprises a reflective sheet and a plurality of light sources that are arranged on said reflective sheet, wherein the …
Who is the assignee on this patent?
Shenzhen China Star Optoelect
What technology area does this patent fall under?
Primary CPC classification G02F1/133603. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue May 29 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).