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  2. Hitachi HD44780 LCD controller - Wikipedia

    en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller

    Second, the LCD may initially be in one of three states: State 1: 8-bit mode; State 2: 4-bit mode, waiting for the first set of 4 bits; State 3: 4-bit mode, waiting for the second set of 4 bits; State 3 may occur, for example, if a prior control was aborted after sending only the first 4 bits of a command while the HD44780 was in 4-bit mode.

  3. List of flat panel display manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_flat_panel_display...

    This list includes LCD, OLED and microLED display manufacturers. LCD uses a liquid crystal that reacts to an electric current blocking light or allowing it to pass through the panel, whereas OLED/microLED displays consist of electroluminescent organic/inorganic materials that generate light when a current is passed through the material.

  4. Xiaomi Smart Home - Wikipedia

    en.wikipedia.org/wiki/Xiaomi_Smart_Home

    This device can clean up to 406 m 3 of air in an hour. It uses HEPA technology to reduce polluting particles from as high as 600 ppm to 2.5 ppm. It has a real-time air quality monitor. Users can sync it with a smartphone to control it remotely, receive air quality data, and be alerted when the air filter is dirty. [7]

  5. How to Clean a Laptop Screen Without Damaging It - AOL

    www.aol.com/lifestyle/clean-laptop-screen...

    For premium support please call: 800-290-4726 more ways to reach us

  6. Elastomeric connector - Wikipedia

    en.wikipedia.org/wiki/Elastomeric_connector

    They provide high-density redundant electrical paths for high reliability connections. One of the first applications was connecting thin and fragile glass liquid-crystal displays (LCDs) to circuit boards in electronic devices, as little current was required. Because of their flexibility, they excel in shock and anti-vibration applications.

  7. Display device - Wikipedia

    en.wikipedia.org/wiki/Display_device

    Nixie tubes, LED display and VF display, top to bottom Display board at Frankfurt (Main) Hauptbahnhof (2005). A display device is an output device for presentation of information in visual [1] or tactile form (the latter used for example in tactile electronic displays for blind people). [2]

  8. The best air purifiers of 2025 - AOL

    www.aol.com/lifestyle/best-air-purifiers...

    We put the best air purifiers from Lenovo, Honeywell, Winix, and more to the test to see which held up best (and actually purified the air for you). See what our product scientist has to say.

  9. Canon T90 - Wikipedia

    en.wikipedia.org/wiki/Canon_T90

    To control the camera's systems, the T90 uses a dual CPU architecture. The main, low-power CPU runs at 32 kHz while the sub-CPU runs at 1 MHz, and is powered down when not needed. The main CPU handles the LCD display and overall state, while the sub-CPU handles exposure calculations, viewfinder display, and control of the camera's motors.

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