Laurence Marchini, Editor, writes:
We see from your search that you're looking for information on the term "LCD backlighting",
and we have a large number of manufacturers' news releases and technical articles here on Electronicstalk which will be of interest.
Let me be your guide.
Start with
the news release Temperature sensors suit low-power applications from
STMicroelectronics, which we summarised at the time by saying "STxx75 temperature sensors suit any control application where a processor with an I2C bus/SMBus needs to take action based on an accurate digital reading of the local temperature".
A couple of weeks before,
we featured the news release LED driver powers three bright diodes from
Texas Instruments (April 2006-): "The TPS61165 can drive backlight LEDs for media form factor displays up to 9in diameter, such as those used in ultramobile PCs and LCD photo frames".
In December 2007, we covered the news from Maxim Integrated Products
concerning its MAX16824 and MAX16825
- take a look at LED driver dims three strings
which says: "Devices feature three 36V-rated open-drain constant-current sink outputs capable of delivering up to 150mA to three separate strings of HB LEDs".
Take a look also at the news release from austriamicrosystems, Drivers boost contrast on the big screen,
as well as Inverter controllers shed light on LCD TVs from NXP Semiconductors,
and High-power LEDs suit space-limited designs from Marktech Optoelectronics.
See also:
Driver dims multicolour LED lighting
(July 2007)
High-efficiency driver is designed to drive tricolour RGB LEDs for fun lighting or enhanced LCD backlighting in portable applications
White LED boasts twice the brightness
(June 2007)
High-efficiency white LED produces twice the brightness of previous devices in the same form factor
LED lights more in low-thermal-resistance package
(June 2007)
Surface mount LED will be ideal for many domestic and commercial lighting applications that have conventionally used incandescent lamps
Boost driver does more with single cells
(April 2007)
LED boost driver is the latest member of a family of devices for operating white LEDs from a single battery cell
Driver IC for LED backlights
(April 2007)
The SC620 octal I2C-controlled LED driver is designed to provide regulated currents for powering a wide range of LEDs, including white, red, blue, green or yellow, with different forward voltages
Process to improve blue/white LED production
(February 2007)
New process for making high-quality compound semiconductors based on GaN and other nitrides aims to meet growing demand for blue/white LEDs
Distribution deal expands analogue offerings
(November 2006)
Solid State Supplies has been appointed as a distributor for Santa Clara based manufacturer Catalyst Semiconductor
LED driver powers up handset camera lights
(October 2006)
Catalyst Semiconductor has announced the availability of a high power, 500mA inductive boost LED driver for movie/flash mode applications
Flexible circuit connectors hold secure
(October 2006)
Molex has introduced two new series of ultra-low-profile FPC connectors with very high cable retention forces for secure contact reliability
Adaptive fractional charge pumps save LED power
(September 2006)
Charge pump architecture delivers high efficiency levels normally associated with inductor-based LED drivers, while eliminating the associated high-profile inductors and unwanted EMI
Controllers add more resolution to power duties
(July 2006)
Digital signal controllers are designed for switch-mode power supply designs and other power-conversion applications such as power inverters and uninterruptible power supplies
LED drivers slim down for backlight duties
(July 2006)
White LED drivers power high brightness LEDs in backlighting applications for cellular phones, digital cameras, MP3 players and other portable consumer electronics devices
PLCC2-packaged LEDs are bright choice
(June 2006)
Efficient white LEDs provide luminous intensity levels as high as 750mcd from a standard, compact PLCC2 package
LED driver powers low-cost backlights
(May 2006)
A tiny, simple-to-use, high-efficiency fractional charge pump is optimised for high-volume three-LED backlighting display applications
ASICs and ASSPs come together in Nuremberg
(April 2006)
Prema Semiconductor is exhibiting for the first time at this year's PCIM Europe in Nuremberg from 30th May to 1st June 2006
Intelligent backlight system is hot stuff
(February 2006)
The HDJD-JB01-8831A illumination and colour management system for backlighting LCD flat-panel TVs has been named one of EDN's Hot 100 Products of 2005
Step up driver powers LED strings three ways
(December 2005)
The MP1529 is a single-inductor step-up driver that is capable of powering three LED strings from a single lithium-ion battery
Colour-management system wins bronze
(October 2005)
An innovative colour-management system for backlighting LCD flat-panel TVs has earned a bronze award at the eighth annual Asian Innovation Awards
Optical films aid LCD backlighting
(October 2005)
GE Advanced Materials is expanding its Illuminex diffuser film family of optical films for liquid crystal display backlighting applications into complete display solutions
Colour management system set for LCD TVs
(July 2005)
The Agilent Technologies ICM illumination and colour management system has been included in Coretronic's reference design for 30in LCD flat-panel TVs
LEDs boast super high flux output
(July 2005)
A new series of 1W LEDs offers super high flux output and high luminance, reaching over 48lm at an operating current of 350mA
Brighter claims for while LED range
(April 2005)
Toshiba is commercialising a new range of white LEDs claimed to achieve the industry's highest level of luminosity
Driver drives LED efficiency
(November 2004)
STMicroelectronics has introduced a new white LED driver with specific features for small LCD module backlight and high efficiency white LED power supply for portable applications
White LED driver IC for LCD backlighting
(October 2004)
Toshiba Electronics Europe has announced the availability of a high-efficiency white LED driver IC for backlighting colour LCDs in mobile phones, PDAs and other portable electronic devices
LED driver chip boasts efficient backlighting
(September 2004)
The FAN5607 is a constant current parallel LED driver that provides analogue and/or PWM brightness control for LCD backlighting in ultraportable applications
Frugal backlight power chip saves battery charge
(July 2004)
A new full-bridge LCD backlight inverter/driver IC offers high efficiency and reliability in a small-footprint package to optimise portable backlighting designs
Convertors drive white-LED backlights
(July 2004)
The XC9116 series of fixed-frequency constant-current step-up DC/DC convertors is ideal for driving the white LEDs used in LCD backlighting applications in a wide range of handheld designs
Charge pumps target handheld applications
(July 2004)
Catalyst Semiconductor has released a pair of very low noise, regulated output charge pumps that implement a 2MHz constant switching frequency, enabling the use of small 1uF ceramic capacitors
Boost power convertors keep the noise down
(July 2004)
Regulated output charge pumps are designed for very low noise operation implementing a constant switching frequency of 2MHz that allows the use of small 1uF ceramic capacitors
RGB LED backlight is ready to use
(March 2004)
The Luxeon DCC is billed as the first fully assembled LED-based RGB light source for use as an alternative to cold cathode fluorescent lamps in LCD backlights
LED drivers provide true analogue dimming control
(November 2003)
A new range of white LED drivers feature the novel option of an integrated true analogue dimming mode, offering a noise-free alternative to pulsed dimming control
White LED driver has built-in soft-start
(October 2003)
The HV9903 is a fixed-frequency DC/DC boost convertor IC designed to drive up to six white LEDs with constant current at efficiencies over 85%
Low-profile inverters shrink backlight supplies
(October 2003)
The latest power supply module from Taiyo Yuden's innovative range of low-profile inverters aims to meet continuing miniaturisation design requirements
Low saturation transistors shrink to 1612 size
(May 2003)
Pushing performance boundaries, Philips has become the first semiconductor company to offer the market BISS transistors in the 1612-sized SOT666/SS-Mini package