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  1. Calculating of the heat dissipation of a LED - Physics Forums

    Jun 1, 2022 · Hello Forum, I write you with the challenge of calculation the heat dissipation of a LED. The LED in question is...

  2. How many LED's are in a typical LED monitor? - Physics Forums

    May 19, 2010 · How many LED's are in a typical LED monitor? For example, how many in a 20in vs. in a 24in, etc? Thanks

  3. "Holographic" Display with Rotating Blades • Physics Forums

    Jul 7, 2022 · Video: I recently happened upon this holographic display design where a number of blades with led strips affixed rotate like a fan. It quite puzzles me how this such a design achieves the …

  4. How to change the color of an LED? • Physics Forums

    Nov 7, 2018 · An item I want to buy comes backlit blue and I need it to be GREEN. I contacted the seller and asked if I could change the bulb color with a green bulb condom and asked if it was currently a …

  5. Observing Emission Spectra from Computer Screens

    Dec 4, 2021 · Hi! I am doing some simple observations of different light sources with a simple DIY spectroscope. When I look at a computer screen I see what I believe to be an emission spectrum …

  6. Strange glow from TV that is off. • Physics Forums

    Jul 9, 2004 · Place your hand against the television screen, with the television off but the lights in the room on. Close your eyes and cover them with your free hand so that you will have good night vision …

  7. In this experiment, you will use light emitting diodes (LED’s) to measure Planck's constant. You should be familiar with semiconductors and diodes from Modern Physics. To review: LED’s are …

  8. How to make screens visible in daylight • Physics Forums

    Mar 30, 2013 · Screens struggle to remain visible in daylight due to their reliance on backlighting, which is insufficient against direct sunlight. Unlike natural objects that reflect sunlight, traditional screens …

  9. On Mixing Colors of Light • Physics Forums

    Oct 16, 2024 · Additionally, there is a mention of using LED technology in screens to generate colors and the complexities of color vision. Overall, the discussion highlights the nuances of color …

  10. How Does a CRT TV Work? • Physics Forums

    Jan 21, 2020 · A CRT TV operates by using a video signal to control an electron gun, which fires electrons onto the screen to create images. The deflection coils move the electron beam horizontally …