Dynascan Technology Corporation

Tsung-I Wang

The invention relates to a method for compensating for poor uniformity of a liquid crystal display having a non-uniform backlight. By virtue of selecting a standard color that all cells can achieve to serve as a virtually primary color, the invention measures to give the relationship between the tri-stimulus values of the virtually primary color and those presented by the respective cells and records the resultant values to serve as compensation data. During operation of a display, the input image data are computed based on the compensation data for respective cells in accordance with the cell locations and converted into compensated image signals. As such, all of the cells are able to present the same chromaticity and brightness upon receiving the same image signal, thereby performing uniform chromaticity and brightness across the entire display.

Method for compensating for poor uniformity of liquid crystal display having non-uniform backlight and display that exhibits non-uniformity compensating function

The invention relates to a rapid detection method for the decay of a liquid crystal display device having an LED backlight and a display device provided with a rapid compensating device for decay. The invention employs a mutually orthogonal series of driving signals to drive a plurality of LED devices in a synchronized manner with the driving signals having a one-to-one correspondence with the LED devices. A processing device extracts respective light emission data for the respective LED devices, compares the respective light emission data with the corresponding reference values pre-stored in the memory device and commands another device to compensate for any deviation existing therebetween. Accordingly, the LED devices are tested in batch mode and the testing is remarkably speeded up without interfering with users' activities.

Rapid detection method for decay of liquid crystal display device having LED backlight and display device provided with rapid compensating device for decay

A light emitting bulb is provided. The light emitting bulb comprises a light source and a cover. The light source is for emitting light. The cover defines an inner space and the light source is disposed inside the cover and heat conductively connected to the cover. The cover is made of heat conductive material and capable of reflecting the light emitted by the light source into the inner space. Therein, a plurality of apertures is formed on the cover to let the light emitted by the light source disposed within the cover emit out from the apertures.

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Tao-Yuan Hsien, Taiwan

Tsung-I Wang