Hon Hai Precision Industry Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Chien-Min Chen

Tung-Ming Hsu

Ming-Fu Hsu

Mu-Chi Hsu

Wen-Feng Cheng

Shi-Ping Xu

Hsiang-Feng Teng

An exemplary method for making backlight module frame includes: providing a plurality of metallic sheets cooperatively defining a frame shape, and a positioning device comprising a worktable and a plurality of positioning portions defined at corners of the worktable, wherein each metallic sheet comprises a first positioning protrusion corresponding to the positioning portions, positioning the metallic sheets on the worktable of the positioning device with the first positioning protrusions of the metallic sheets engaging with the positioning portions of the positioning device, welding the metallic sheets together to form a semi-manufactured frame, and pressing the semi-manufactured frame to form a backlight module frame.

Method for making backlight module frame

An exemplary method for making backlight module frames includes: method includes: providing a first metallic sheet and a second metallic sheet, each of the first and second metallic sheets having at least two L-shaped portions connected side by side and oriented in the same direction; welding the two metallic sheets to form a plurality of connected semi-manufactured frames corresponding to s subsequent backlight module frame; and pressing the connected semi-manufactured frames to form a plurality of backlight module frames. The method costs less welding time and it is convenient for the backlight module frames to be mass-produced.

An exemplary process for making a light guide includes the steps of: providing a transparent base sheet; punching the base sheet to form an array of first apertures therein; coating a melted resin material in the first apertures and making the melted resin material fill up the first apertures; solidifying the melted resin material to form a plurality of resin blocks; punching the base sheet to form an array of second apertures in the resin blocks, the second apertures configured for illuminating the keys via at least one light source; and trimming the base sheet with the second apertures to form a light guide. A light guide made by the process is also provided.

Keypad light guide with lined apertures

A frame includes a frame body and a plurality of fixing units. The frame body includes a base and a plurality of sidewalls extending from the peripheral of the base, the base and the sidewalls cooperatively forming a receiving cavity to receive the liquid crystal module. The fixing units are configured for enclosing the sidewalls and confining the liquid crystal module into the receiving cavity of the frame body. Each fixing unit is securely bounded with the liquid crystal module and the sidewall of the frame body respectively. A display device using the frame is also provided, which can be assembled efficiently and decreases the cost of materials.

Display device comprising a liquid crystal module defining a plurality of positioning columns along each edge of a top surface thereof

A direct type backlight module () includes a substrate (), a diffusion sheet () disposed above the substrate, a plurality of spacers () and a plurality of light sources (). The spacers are disposed between the substrate and the diffusion sheet. Each spacer includes a bottom surface () contacting with the substrate. A groove () is defined in the bottom surface, and a light incident surface () is defined on inner surface of the groove. A pair of wings is disposed on two sides of the bottom surface for supporting the diffusion sheet. Each wing includes an outer side surface and an inner side surface, and a transflective film is formed on the inner side surfaces of the wing. The light sources are respectively disposed in the grooves.

Direct type backlight module

A plane light source has a light source (), a reflection cover () and a light guide plate (). The light guide plate has a wedge-shaped base plate (), an array of reflection lumps (), and an array of round protrusions (). The base plate has a light incidence surface (), a light emitting surface (), and a bottom surface () opposite to the light emitting surface. The reflection lumps are disposed on the bottom surface, and penetrate into the base plate. The round protrusions are disposed on the light emitting surface for diffusing light. Each reflection lump corresponds to a respective one of the round protrusions. Each reflection lump has a reflecting surface () for reflecting incident light to the corresponding round protrusion of the light emitting surface.

Growing community of inventors

Taipei Hsien, Taiwan

Chien-Min Chen