[Applied Procrastination] Also known as [Simen E. Sørensen] There is a simple project to help those of us who are in difficulty Zombie in the morning. By using the backlight optics of the damaged LCD display, you can create an excellent diffuse light source to simulate daylight before the wake-up time of your choice. The theory believes that gradual awakening has less impact on the brain than an alarm clock. Increasing the light level prepares the brain for a slowly increasing light level, reminiscent of dawn, and then is awakened correctly by the alarm, regardless of the actual light level outside.This is especially useful for those of us in the more northern regions, such as [Simen]From the mainland of Norway, the winter morning is very dark.
However, daylight is not a pure diffuse light source, it depends on the degree of atmospheric scattering, local reflection, etc., but as far as we are here, we can use the light source as a diffuse light source as much as possible.
This implementation utilizes the existing LCD metal frame, light guide plate (usually a large piece of acrylic covered with etching marks on one side), diffusion/brightness enhancement plate, and Prism sheetThe white LED strips mounted on the edge of the frame guide the light into the light guide, which combines total internal reflection and scattering from only one side, effectively rotating the light 90 degrees and spreading it evenly on the surface. The result of this optical sandwich is flat, uniform light, exactly what you want for the display and the effect of simulating sunlight.
Below the expected 3D printing frame is a custom PCB, which is derived by fusing the design of the Adafruit DS3231 RTC module and Arduino Nano. An additional button and rotary encoder complete the minimalist UI and allow the device to function as General equipment doubles the purpose lights during the day. Although there was some shaking when assembling the frame, and some incorrect PCB taking up space, the whole process was well integrated. This is the perfect way to deal with damaged LCD monitors, to find a new life and keep the number of landfills to a minimum.
For more detailed information about hardware and code, please refer to Zom-b-Gone Github.