Darfon Electronics Corporation

Darfon Electronics (Suzhou) Co., Ltd.

Delta Electronics, Inc.

Yen-Chang Chen

Hsin-Cheng Ho

Po-Yueh Chou

Liang-Yu Yao

Chia-Wei Chen

Po-Wei Tsai

Lee-Lung Chen

Chien-Chung Lee

Sheng-Yun Yang

Yu-Chieh Tseng

Jian-Jhang Wu

Shih-Sheng Liang

Chen-Yu Huang

A backlight module for a lighting keyboard including at least two heat-dissipating keys comprises a reflective layer, a light guide panel and a shielding sheet and has at least two penetration channels. The reflective layer, the light guide panel and the shielding sheet are stacked up and down. The penetration channels symmetrically correspond to the heat-dissipating keys respectively and penetrate the reflective layer, the light guide panel and the shielding sheet. The penetration channels are respectively provided with one light-reducing pattern at their periphery for blocking light. At least two diffusion patterns are arranged adjacent to the light-reducing patterns for guiding light to illuminate the heat-dissipating keys. The light-reducing patterns and the diffusion patterns form at least two heat-reducing optical pattern groups respectively. The heat-reducing optical pattern groups respectively corresponding to the heat-dissipating keys have identical patterns.

Lighting keyboard and backlight module for the same

A backlight module is applied to providing light to a plurality of keyswitches of a keyboard. Each keyswitch has a keycap and an elastic member abutting against the keycap. The backlight module includes a membrane circuit board and a light guide plate. The membrane circuit board has a light emitting diode corresponding to the keyswitch. The light emitting diode is located at a side of the elastic member and emits light to the keycap. The light guide plate is disposed on the membrane circuit board. The light guide plate has a slot hole for containing the light emitting diode and has a hole corresponding to the elastic member. An optical microstructure is formed on the light guide plate for guiding light of the light emitting diode to be incident to the keycap. The elastic member passes through the hole to be disposed on the membrane circuit board.

Backlight module and keyboard thereof

An air conditioning system includes a control unit, a circulation system, an AC-to-DC conversion unit, and a fan module. The control unit detects an area temperature, controls the compressor unit being in operation or not in operation according to the area temperature and a setting temperature set by the control unit, and control a rotation speed of the condensing fan according to a temperature difference between the area temperature and the setting temperature. When the area temperature is greater than the setting temperature, the control unit controls the compressor unit being in operation and control the condensing fan being in full-speed operation.

Air conditioning system and method of operating the same

A backlight module includes a light source unit for providing light, a light guide plate including a plate body having a light entrance surface and extending along an X-Y plane and at least one opening in the plate body and extending along a Z axis, and an optical layer on one side of the light guide plate. The light enters the light guide plate from the light entrance surface and travels substantially along the X-Y plane. A cross section of the opening on the X-Y plane is a taper shape with a base region and a cone shape region extending from one side of the base region near the light source unit. The optical layer has a through hole aligned and communicating with the base region. A projection of the cone shape region along the Z axis on the optical layer is at least partially outside the through hole.

Backlight module and light guide plate thereof

The illuminated keyboard includes a base plate, a backlight module, a plurality of input keys and a mask layer. The backlight module and the plurality of input keys are disposed on opposite sides of the base plate. The mask layer is disposed between the base plate and the backlight module. A pointing stick cursor key includes a holding structure, an opening and a masking portion. The holding structure with a hole is disposed on the base plate. The opening is formed on the mask layer in a position corresponding to the holding structure. The holding structure is extended into the backlight module via the opening. The at least one masking portion is connected to a periphery of the opening for bendably attaching against the holding structure for covering the hole when the holding structure is extended into the backlight module via the opening.

Pointing stick cursor key and illuminated keyboard therewith

A light guide plate structure includes a light guide plate, a first medium layer, a micro structure, a second medium layer, and a reflection layer. The light guide plate has a light exit surface and a bottom surface opposite to the light exit surface. The first medium layer is formed on the light exit surface. The micro structure is formed on the bottom surface for redirecting light inside the light guide plate to emit from the light exit surface. The second medium layer is formed on the micro structure. The refractive index of the first medium layer and the refractive index of the second medium layer are less than the refractive index of the light guide plate but greater than the refractive index of air. The reflection layer is formed on the second medium layer for reflecting light inside the light guide plate to emit from the light exit surface.

Light guide plate structure and light-guide-plate manufacturing method thereof

A backlight module includes a light guide plate, a light source, a light shielding sheet, a light reflecting sheet and a light shielding member. The light guide plate has a hole formed thereon and the hole has a side wall. The light source is disposed neighboring to the light guide plate and used for emitting light into the light guide plate. The light shielding sheet is disposed on the light guide plate. The light reflecting sheet is disposed below the light guide plate. The light shielding member is disposed in the hole and covers the side wall of the hole, so as to block the light guided by the light guide plate from being emitted out of the hole.

Backlight module and keyboard

A cooling system of a server with an AC power source and a DC power source includes an AC input subsystem, a DC input subsystem, and a driving control subsystem. The AC input subsystem receives an external AC power source and provides a first DC voltage and a second DC voltage. The DC input subsystem receives an external DC power source and provides a third DC voltage and a fourth DC voltage. When the external AC power source normally works, the driving control subsystem controls the first DC voltage and the second DC voltage to supply a high-voltage cooling apparatus and a low-voltage cooling apparatus, respectively. When the external DC power source normally works, the driving control subsystem controls the fourth DC voltage and the third DC voltage to supply the high-voltage cooling apparatus and the low-voltage cooling apparatus, respectively.

Growing community of inventors

Taoyuan, Taiwan

Yen-Chang Chen