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"Positioning Structure for Positioning Optical Film and Frame and Related Backlight Module and Liquid Crystal Display" in Patent Application Approval...

July 31, 2014



"Positioning Structure for Positioning Optical Film and Frame and Related Backlight Module and Liquid Crystal Display" in Patent Application Approval Process

By a News Reporter-Staff News Editor at Politics & Government Week -- A patent application by the inventor Li, Quan (Shenzhen, CN), filed on January 10, 2013, was made available online on July 17, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application has not been assigned to a company or institution.

The following quote was obtained by the news editors from the background information supplied by the inventors: "The invention relates to a liquid crystal display, and more particularly, to a positioning structure for positioning an optical film and a frame and related backlight module and LCD.

"A liquid crystal display (LCD) has many advantages. It has been widely used in all kinds of electronic devices.

"In an LCD having a LED backlight module and a narrow side frame, in order to solve a hotspot problem formed on the light guiding plate, the optical film is often placed on the frame. Please refer to FIG. 1, which is a diagram showing a backlight module according to the related art. The backlight module 100 comprises at least one optical film 10, a plastic frame 20, a back frame 30, a light guiding plate 40, and a Led light source 50. The light guiding plate 40 is placed inside the back frame 30. The Led light source 50 is placed on an inner wall 31 of the back frame 30 and near a light input surface of the light guiding plate 40. The lights generated from the LED light source are inputted into the light guiding plate 40 through the light input surface. A reflection plate 60 is installed between the light guiding plate 40 and the back frame 30, and is used to reflect the lights emitted from the light guiding plate 40 back to the light guiding plate 40. The plastic frame 20 and the back frame 30 are assembled to fix the light guiding plate 40, the LED light source 50, and the reflection plate 60 inside the back frame 30. A positioning pillar 26 is installed on the side frame 25 of the plastic frame 20, and is used to be placed through the positioning hole 12 of the optical film 10. In this way, the optical film 10 can be fixed in both X and Y directions.

"It can be seen that the plastic frame 20 and the optical film 10 cannot be fixed in the Z direction (the direction of the thickness of the backlight module 100). This makes the optical film 10 unstable in the Z direction."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventor's summary information for this patent application: "It is therefore one of the primary objectives of the claimed invention to provide a positioning structure for fixing the optical film and the frame, to solve the above-mentioned problem.

"According to an exemplary embodiment of the claimed invention, a positioning structure for fixing an optical film and a plastic frame is disclosed. The plastic frame comprises a side frame having an assembling hole. The optical film placed on the side frame and comprises a protruded ear. The protruded ear has a positioning hole. The positioning structure comprises: a magnetic member, installed inside the assembling hole; an attracted member, comprising a compression part and a positioning pillar, wherein the positioning pillar is connected to a lower surface of the compression part and gets inside the assembling hole through the positioning hole such that the positioning pillar is connected to an attraction hole of the magnetic member due to a magnetic effect to make the compression part compress and fix the optical film on the side frame.

"According to another exemplary embodiment of the present invention, a backlight module is disclosed. The backlight module comprises a back frame; a light guiding plate, installed in the back frame; a plastic frame, comprising a side frame having an assembling hole, the plastic frame placed on the light guiding plate; a magnetic member, installed inside the assembling hole; an optical film, placing on the side frame and comprising a protruded ear, the protruded ear having a positioning hole; and an attracted member, comprising a compression part and a positioning pillar, wherein the positioning pillar is connected to a lower surface of the compression part and gets inside the assembling hole through the positioning hole such that the positioning pillar is connected to an attraction hole of the magnetic member due to a magnetic effect to make the compression part compress and fix the optical film on the side frame.

"According to another exemplary embodiment of the present invention, a liquid crystal display is disclosed. The liquid crystal display comprises a backlight module, a display panel placed on the backlight module, a bezel placed on the display panel. The backlight module comprises a back frame; a light guiding plate, installed in the back frame; a plastic frame, comprising a side frame having an assembling hole, the plastic frame placed on the light guiding plate; a magnetic member, installed inside the assembling hole; an optical film, placing on the side frame and comprising a protruded ear, the protruded ear having a positioning hole; and an attracted member, comprising a compression part and a positioning pillar, wherein the positioning pillar is connected to a lower surface of the compression part and gets inside the assembling hole through the positioning hole such that the positioning pillar is connected to an attraction hole of the magnetic member due to a magnetic effect to make the compression part compress and fix the optical film on the side frame.

"In one aspect of the present invention, the positioning pillar and the compression part are monolithic.

"In another aspect of the present invention, the positioning pillar and the compression part are manufactured by a magnetic metal.

"In another aspect of the present invention, a buffer layer is installed on an upper surface of the compression part, and the buffer layer is manufactured by a silica gel.

"In still another aspect of the present invention, the magnetic member is connected to a lower surface of the positioning hole by sticky glue, and the sticky glue is acrylic resin.

"In yet another aspect of the present invention, the magnetic member is a magnet.

"In contrast to the related art, the present invention, the present invention positioning structure can fix the optical film well in all X, Y, and Z directions. Therefore, the present invention raises the reliability of positioning the optical film and makes assembly easier such that the assembling speed and capacity are raised.

BRIEF DESCRIPTION OF THE DRAWINGS

"FIG. 1 is a diagram showing a backlight module according to the related art.

"FIG. 2 is a diagram showing a backlight module according to an embodiment of the present invention.

"FIG. 3 is a diagram showing a region B along A-A direction shown in FIG. 2.

"FIG. 4 is a diagram showing a structure of an LCD according to an embodiment of the present invention."

URL and more information on this patent application, see: Li, Quan. Positioning Structure for Positioning Optical Film and Frame and Related Backlight Module and Liquid Crystal Display. Filed January 10, 2013 and posted July 17, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=6200&p=124&f=G&l=50&d=PG01&S1=20140710.PD.&OS=PD/20140710&RS=PD/20140710

Keywords for this news article include: Patents.

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Source: Politics & Government Week


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