Electronic Circuits Schematics Projects




Transistor LCD Backlighting

Rating: 7.00/10 (6Votes cast)

Category: Digital Circuits / Display Circuits
This circuit is also crossed to: LCD circuits , Lighting
Views: 3275
Rank: 0

The circuit looks simple but this is very deceptive: many components interact, and while the circuit is capable of operation with widely varying component values, (useful during development) optimisation is required for each design to achieve the highest possible efficiencies. visit page.

Related circuits

Backlight Inverter for Desktop LCD Displays

Large LCD (liquid crystal display) displays designed to replace CRTs (cathode ray tubes) in desktop computer applications are becoming available. The LCDs reduced size and power requirements allow much smaller product size, a highly desirable feature.



Noise Reduction Feature on the AD7877

A 4-wire touch screen consists of two flexible, transparent, resistive coated layers. The two resistive layers act like a potential divider, and X and Y positional measurements on the screen are proportional to the voltage that is sensed from these layers. A touch screen is essentially a...



two-digit display

A project that includes a stage with three selectable gains (0.1, 1.0, and 10) requires that the rotary-gain switch also function to illuminate one of three LEDs. These panel-mounted LEDs serve to indicate the gain in use. This arrangement requires two switch sectionsone for selecting the op amps...



THREE-COLOUR DISPLAY USING BICOLOUR LEDs

The circuit presented here uses bicolour LEDs to generate a display in three colours, namely, red, green, and yellowish green.



Efficient LCD Illumination

A practical 92% efficient LCD backlight design is a classic study of compromise in a transduced electronic system. Every aspect of the design is interrelated, and the physical embodiment is an integral part of the electrical circuit. The choice and location of the lamp, wires, display housing...



teletext coder

This tiny toll will convert teletext visual data used on S51KQ CGENxx/ATVRC/TTX & DG9MHZ VTencoder (*.ATV) in to *.TT files used on OBW teletext encoder, and back. To compile *.ATV files in to *.TT file run compiler, select Page&Sub numbers for output file, open source ATV file,...



display bit-map images on small-graphic LCDs

To use these attached bit maps, you need a subroutine in your program, such as the 8051 assembly code in Listing 1, which can pull the data out of the lower memory and send it to the display. This code clocks in bit maps to the SED1330 controller chip on a 240X320-pixel display. If your display...



Telephone Display

The system should be connected to the telephone lines via a DPDT switch (not shown) for manual switching, otherwise any circuit capable of sensing handsets off-hook condition and thereby switching relays, etc. can be used for automatic switching. The power-supply switch can also be replaced then....



Vizio LCD Powers on with backlight, Wont power off, No video

LCD TV Repair made easy # 1


Comments




 characters left

Captcha

captchaPlease input letters you see on the image.
Click on image to redraw.



Facebook Comments

Most searched
 
Accounts area
Username:
Password:
Forgot password? Register
Circuits