Solutions of reflection and transmission reflection

Reflective and transflective OLED Display brightness solutions to solve the problem is an effort to take advantage of the surrounding light. More than half of the energy consumption of the backlight on the display, thus reducing or removing the backlight will greatly extend the battery life, or to significantly reduce the device weight. Like Palm and Compaq iPAQ PDA, etc. often use reflective displays. This means that around the entering light from the front of the display, through the polarization liquid crystal layer, and finally reaches the reflecting layer, then it is reflected again, form a visible image. It is estimated that about 84% of the light is absorbed on the way, so in fact you only see 1/6 of the reflected light. This requires improvement, but still be able to provide sufficient contrast so as to form a visible image. However, if the lack of outside light how to do? You need to provide an auxiliary light so you can see the image.

Some devices (e.g. Palm) is "reflectance and transmittance (transreflective)", and their one-way light reflecting through which only the reflective layer. But this is not a particularly efficient design, there are still a lot of light is reflected away. Another attempt to illuminate the front layer is reflective screen, as used herein CompaqiPAQH3600. Light from the light source edge of the display panel, along the surface of the panel transmission, followed by a wedge-shaped diffuser screen is vertically directed. This provides sufficient light panel light required, ultimately produce a visible image. Transmission reflection and reflection in a wider Low Temperature Display makes using the LCD monitor lighting conditions possible, but it consumes very little energy.