News Column

"Light Bar and Light Emitting Module Using the Same" in Patent Application Approval Process

February 12, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- A patent application by the inventors SUN, Ren-Yi (SUZHOU CITY, CN); FANG, Liang (SUZHOU CITY, CN), filed on March 13, 2013, was made available online on January 30, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application is assigned to Au Optronics Corporation.

The following quote was obtained by the news editors from the background information supplied by the inventors: "The present invention relates to a light bar. More particularly, the present invention relates to a light bar utilized in a direct backlight module.

"A liquid crystal display includes the main elements of a backlight module, a display panel, and a frame. The backlight module is utilized for providing a light source to enable the display panel to display a normal and uniform image. The backlight module includes plural optical sheets, such as a light guide plate, a diffusion sheet, and a prism sheet for uniformly distributing the light emitted from the light source on the display panel to provide images. The frame includes a bezel and a mold frame for fastening the display panel and the backlight module. The backlight module can be a direct backlight, in which the light source is disposed behind the screen, or an edge backlight module, in which the light source is disposed at the edge of the screen.

"With the ever-increasing size of displays, the size of light bars utilized in direct backlight modules is also becoming larger and larger. In order to simplify fabrication, transport, and assembly, several light bars are assembled to obtain a predetermined size. However, the light bars are frequently designed having different layouts, thereby increasing the cost of managing the light bars and making assembly difficult."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventors' summary information for this patent application: "The invention provides a light emitting module made by connecting plural to light bars with substantially the same layout to reduce management costs and make assembly easier.

"An aspect of the invention provides a light bar which includes a substrate; a plurality of light emitting diodes disposed on the substrate; a first connector disposed at an end of the substrate and sequentially including a first pin, a second pin, a third pin, and a fourth pin; a second connector disposed at another end of the substrate opposite to the first connector and sequentially including a fifth pin, a sixth pin, a seventh pin, and an eighth pin; a first wire connecting the first pin to the second pin; a second wire connecting the third pin to the fifth pin; a third wire connecting the sixth pin to the seventh pin and serially connecting the light emitting diodes; and a fourth wire connecting the fourth pin to the eighth pin.

"The first wire and the third wire can be U-shaped, and the fourth wire can be linearly arranged. The second wire can be step-shaped and partly surrounds the light emitting diodes. The light emitting diodes can be serially connected from the sixth pin to the seventh pin. The light emitting diodes can be serially connected from the seventh pin to the sixth pin.

"Another aspect of the invention provides a light emitting module which includes a plurality of the light bars. The second connector of each of the light bars is connected to the first connector of the adjacent light bar. The light emitting module further includes an adopting board, and a third connector disposed on the adopting board, in which the third connector is connected to the second connector of the light bar adjacent to the adopting board. The third connector sequentially includes a ninth pin, a tenth pin, an eleventh pin, and a twelfth pin. The light emitting module further includes a fifth wire for connecting the ninth pin to the tenth pin. The light emitting module further includes a power source, and the eleventh pin or the twelfth pin is connected to the power source. The light emitting module further includes a driving chip, in which the twelfth pin or the eleventh pin is connected to the driving chip. The light emitting module further includes a conductive element for electrically interconnecting the third pin and the fourth pin of the first connector of the light bar farthest from the adopting board. The conductive element can be a jumper, a pad, a wire, or a connector.

"Users may flexibly assemble the light bars with substantially the same layout in rows, and the light bars in such rows can be further interconnected to thereby provide the light emitting module with a predetermined size. The light bars utilized in the light emitting module have substantially the same layout. Therefore, the cost of managing the light bars can be reduced, and assembly can be performed more easily. It is to be understood that both the foregoing general description and the following detailed description are by examples, and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

"The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings,

"FIG. 1 is a schematic diagram of an embodiment of a light bar of the invention;

"FIG. 2 is a schematic diagram of a first embodiment of a light emitting module of the invention;

"FIG. 3 is a schematic diagram of a second embodiment of the light emitting module of the invention;

"FIG. 4 is a schematic diagram of a third embodiment of the light emitting module of the invention;

"FIG. 5 is a schematic diagram of a fourth embodiment of the light emitting module of the invention;

"FIG. 6 is a schematic diagram of a fifth embodiment of the light emitting module of the invention; and

"FIG. 7 is a schematic diagram of a sixth embodiment of the light emitting module of the invention."

URL and more information on this patent application, see: SUN, Ren-Yi; FANG, Liang. Light Bar and Light Emitting Module Using the Same. Filed March 13, 2013 and posted January 30, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=3486&p=70&f=G&l=50&d=PG01&S1=20140123.PD.&OS=PD/20140123&RS=PD/20140123

Keywords for this news article include: Electronics, Light-emitting Diode, Au Optronics Corporation.

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Source: Electronics Newsweekly


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