Liquid crystal display (lcd)

University has invested heavily in modernizing classrooms & halls to take advantages on instructional technology in LCD projectors. LCD is used with a computer to project an image on a screen or a blank wall & provide more instruction flexibility in the types of content that can be used in classroom.

1. LIQUID CRYSTAL DISPLAY (LCD) Mrs. Gayathri R First year MSc Nursing Upasana College Of Nursing. K ollam

2. INTRODUCTION University has invested heavily in modernizing classrooms & halls to take advantages on instructional technology in LCD projectors. LCD is used with a computer to project an image on a screen or a blank wall & provide more instruction flexibility in the types of content that can be used in classroom.

3. DEFINITION LCD is a display technology uses road shaped molecules [ liquid crystals ] used in digital watches, laptops, mobile phones & other electronic devices.

4. parts

5. Functioning of lcd Utilizes two sheets of polarizing materials, with a liquid crystal solution between them. An electric current passed through the liquid causes the crystal to align so that light can’t be passed through them.

6. instructions Opening slide must be a title/main theme. Use slides to tell a story. Involve students in discussion of visuals. Use animations or sound clips. Avoid use too many slides.

7. Guidelines Limit number of slides. Ensure text contrast. Standardized position, colors & styles. Use transition effects with in limit.

8. advantages Easily made using PowerPoint. Accessible to students. Use for teaching- learning activity. Make class interesting. Draws students attention. Content retained in memory. Live presentation.

9. disadvantages Expensive. Requires electricity. Repeated slides bored students. Time consuming.

10. CONCLUSION