Chunghwa Picture Tubes, Ltd.

Chien-Lung Tsou

Chi-Neng Mo

Han-Yu Chao

Jan-Tian Lian

Chun-Wei Su

Chain-Shu Hsu

Tzu-Pin Lin

Fang-Chung Chen

Yung-Shiuan Chen

Shang-Chieh Chien

Fu-Cai Lu

Tzung-Yang Li

Liang-Ming Yu

Hsin-Li Lin

Chih-Nan Lo

Yuming Liu

A backlight module is provided. The backlight module has a reflective chamber and a light source. The reflective chamber includes a bottom reflector, a top reflector, at least a light entrance, and a plurality of light emitting openings disposed on the top reflector. The light source is disposed corresponding to the light entrance. The number of the light emitting openings per unit area in a region near the light source is less than the number of the light emitting openings per unit area in another region far from the light source.

Backlight module

A backlight module control system includes at least one backlight module, a driving circuit, at least one switch and a power supply module. The driving circuit is utilized for determining a driving signal to drive the backlight module. The switch is coupled between the driving circuit and the backlight module, and is selectively turned on or off according to the driving signal. The power supply module is coupled to the backlight module, and is utilized for providing an operating voltage required by the backlight module control system.

Backlight module control system and control method thereof

A back light module is provided. The back light module includes a plurality of light source matrixes, a current adjusting circuit and a light source driving circuit, wherein each of the light source matrixes includes N light emitting units and N is an integer greater than 1. First ends of the light emitting units are electrically connected to each other, and a second end of the ilight emitting unit is electrically connected to an ilevel switch line, wherein i is an integer and 1&#x2266;i&#x2266;N. The current adjusting circuit supplies and controls the current of each of the light source matrixes through level switch lines. The light source driving circuit drives the light source matrixes sequentially.

Back light module

A light emitting material includes a polyfluorene derivative having a liquid crystal side group is provided. The polyfluorene derivative has a chemical structure as described in structure 1: 

Light emitting material and light emitting diode device

An organic electro-luminescence device including an anode, a cathode, an organic light emitting layer and a hole-transporting layer is provided. The cathode has a calcium electrode and an aluminum electrode adjacent thereto. The organic light emitting layer is disposed between the anode and the calcium electrode, and has a polymer, a phosphorescence dopant and an organic electron-transporting material, wherein a ratio of contents of the organic electron-transporting material to contents of the polymer in the organic light emitting layer is substantially between 0.1 and 1. The organic electron-transporting material is 1,3-bis(N,Nt-butyl-phenyl)-1,3,4-oxadiazole. The hole-transporting layer is disposed between the light emitting layer and the anode.

Organic electro-luminescence device with organic light emitting layer having particular ratio of contents

An LED package structure includes a frame, at least a first LED, and at least a second LED. The frame includes a base having a first cavity and a second cavity, where the second cavity is disposed under the first cavity and the second cavity is smaller than the first cavity. The first LED is disposed in the bottom of the first cavity, and the second LED is disposed in the bottom of the second cavity.

Light emitting diode package structure and lead frame structure thereof

An electronic element module and an electronic device using the same are provided. The electronic element module includes a circuit board and a plurality of electronic elements. In one embodiment, the circuit board has a plurality of leg-holes. Each of the electronic elements includes a body and a plurality of legs that connected to the body. Wherein, the bodies of the electronic elements are glued each other, and the legs of the electronic elements are partially plugged in the leg-holes. In another one embodiment, the circuit board has a plurality of contacts. The electronic element is disposed on the circuit board with a gap therebetween. The electronic element has a plurality of terminals that electrically connect to the contacts of the circuit board correspondingly. Otherwise, the gap is filled with glue.

Growing community of inventors

Taoyuan County, Taiwan

Chien-Lung Tsou