The document discusses the importance and functionality of liquid crystal displays (LCD) in educational settings, highlighting their role in enhancing instructional technology. It outlines the structure, advantages, and disadvantages of using LCD projectors, as well as guidelines for effective presentations. The document emphasizes the need for engaging and well-structured content while being cautious of overuse and technical limitations.

2. LIQUID CRYSTAL
DISPLAY (LCD)
Mrs. Gayathri R
First year MSc Nursing
Upasana College Of
Nursing. Kollam

3. 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.

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

5. PARTS

6. 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.

7. 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.

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

9. 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.

10. DISADVANTAGES
•Expensive.
•Requires electricity.
•Repeated slides bored students.
•Time consuming.

11. CONCLUSION