13 June 2002 Page: 1 FS M PLANON ® The new dimension in light. Barrier discharge lamp technology...

13 June 2002 Page: 1FS M

PLANON®

The new dimension in light.

“Barrier discharge” lamp technology

from OSRAM


General Lighting• Standard incandescent lamps• Halogen lamps• Compact fluorescent lamps• Fluorescent lamps• High-intensity discharge lamps

Automotive Lighting• Headlamps• Auxiliary automotive lamps• Headlight systems (USA only)

Photo-OpticHalogen and discharge lamps for film and TV, special effects and airport lighting, over-head and video projectors, medicine and microscopy

Opto Semiconductors• LED• Displays• High-power laser diodes• Infrared components

Ballasts and Luminaires• Electronic control systems for (compact) fluorescent lamps, low-voltage halogen lamps, high-intensity discharge lamps • Consumer luminaires

PM&C• Electronic, chemical, metall-

urgical and glass components for lamp manufacturing and

similar technologies• Sintered metals, connectors

Machines• Design and construction of

machines and complete pro-duction lines for lamps and

their components• Elaboration of concepts for

new production sites

OSRAM activities


Thermal emission

• Incandescent lamp

• Halogen lamp

Low-intensity discharge + phosphor• Fluorescent lamp in a wide range of

diameters• Compact fluorescent lamp with/

without electronic control system• Flat lamp

High-intensity discharge (+ phosphor)• Metal halide lamps

• High pressure sodium lamps

Semiconductors

• LEDs

• Displays

• High-power laser diodes

• Infrared components

OSRAM basic technologies and products


1936 Fluorescent tubes

1979 LUMILUX®-Fluorescent tubes

1980 OSRAM DULUX® S

1985 OSRAM DULUX® EL

1993 FM® (T2) Fluorescent tubes

1995 FH® (T5) Fluorescent tubes

1996 FQ® (T5) Fluorescent tubes

1997 OSRAM ENDURA®

1998 OSRAM PLANON®

OSRAM is setting milestonesin fluorescent lamp technology


Extremely low-profile flat-formatfluorescent lamp for area lighting

OSRAM innovations power the market:Latest brilliant example: OSRAM PLANON®

New high performance backlighting for LCD screens

New design possibilities for general lighting with outstanding uniform luminance

Virtually constant light-output over a wide ambient temperature range

Mercury-free, thusno problems with waste disposal


High luminance (>7000 cd/m²) constant from centre to edge

High homogeneity (> 85%)

Lamp size not limited by physical constraints, currently available: Lamp diagonals 10,4“, 15,0“, 18,1“, 20,1“, 21,3“

Integrated reflector for optimised light-output

Mercury-free discharge thus

– light-output unaffected by changes in ambient temperature (-30°C… +85°C)

PLANON® system advantages

0

10

20

30

40

50

60

70

80

90

100

-30 -20 -10 0 10 20 30 40 50 60 70 80

Ambient temperature °C

Rel

ativ

e li

gh

t o

utp

ut

%

Mercury fluorescent

OSRAM PLANON®

PLANON®

Hg- based

fluorescent lamps

(typical trend)

– instant start at full light-output (start-up time < 5ms)

– no hazardous waste


Colour coordinates stable over lifetime

Lambertian characteristics

Heat dissipation with extremely low Rth

Inverter/ECG QT PLANON® designed for optimising lamp performance:Including PFC + lamp driver, lamp driver only

PLANON® system advantages

Longlife Longlife CCFLCCFL

PLANONPLANON®®

Normal Normal CCFLCCFL

Lu

min

ance

%

X 1000 h

100

90

80

70

60

50

0 10,0 20,0 30,0 40,0 50,0 60,0 70,0 80,0 90,0 100,0

Extremely long lamp life, up to 100,000 h (based on 50% of initial luminance)

– no internal heater electrodes to burn-out

– no darkening caused by loss of emitter material or mercury effects


Phosphor

Dielectric barrier

Reflector

Anode

Cathode

Bottom glass

Frame

Top glass

Spacer

PLANON® lamp structure

The various functional layers of a PLANON® lamp


UV-radiation is transformed into visible light by phosphors

PLANON® operating principle

PLANON® generates light using pulsed dielectric barrier discharge

A suitable voltage is applied to the electrode system of the lamp from the outside. It excites xenon atoms in the gas chamber and enables the formation of excited Xe2

* molecules

UV Radiation

Top glass

+++ h·

Xenon gas

Glass

Light

+

Anode

Phosphor

Barrier layerCathode

e-

Xe XeXe*2

Xe e-Xe + Xe*2


Principle of the barrier discharge

Light

Xe Xe Xe* ++

Xe2* +XeXe h·+

XeXe2*+

Xe*Xe + e - + e -

AnodeCathodee-

Phosphor

Reflective coatingBottom glass

Top glass

Barrier layerXenon

Phosphor


PLANON® microdischarges

Small protrusions affixed to the cathode lines function as starting points of microdischarges

Microdischarge Protrusion

The discharge channels widen to roughly triangular shapes ending on the opposing electrode lines

The high homogeneity featured by PLANON® is achieved by placing these triangular discharge filaments throughout the whole lamp surface


Diffuser plates

Inverter

PLANON®

PLANON® system components

Components of a PLANON® system


With an estimated lifetime of 100,000 h PLANON® technology surpasses other existing backlighting systems by far

Maintenance characteristics of LCD backlighting systems

Longlife Longlife CCFLCCFL

PLANONPLANON®®

Normal Normal CCFLCCFL

Lu

min

an

ce

%

X 1000 h

100

90

80

70

60

50

0 10,0 20,0 30,0 40,0 50,0 60,0 70,0 80,0 90,0 100,0


Rel

. lu

min

anc

e [%

of

ste

ady

sta

te v

alu

e a

t 20

°C]

Time [s]2500

0102030405060708090

100

0 500 1000 1500 2000

PLANON® edge light system HCFL

edge light system CCFL

PLANON® starts at high luminance within 5 ms, offering power saving benefits by enabling true power-

save modes

Burn-in characteristics of LCD backlighting systems


0

10

20

30

40

50

60

70

80

90

100

-30 -20 -10 0 10 20 30 40 50 60 70 80

Ambient temperature °C

Re

lati

ve

lig

ht

ou

tpu

t %

Mercury fluorescent

OSRAM PLANON®

PLANON®

Hg- basedfluorescent lamps(typical trend)

Relative light output vs. ambient temperature

PLANON® light output is virtually unaffected by changes in ambient temperature


PLANON® dimming technology:Principles

PLANON® generates light by using very short pulses

The voltage, which generates these short discharge pulses is shown to the right

time

To ensure a maximum of light stability, it is necessary to have a certain voltage (or energy) per pulse


PLANON® dimming technology: Two different principles

100%

Luminance

UL

50%UL

50%UL

20%

UL

PWM-Dimming: PWM means „pulse width modulated“, this possibility of dimming uses the inertia of the human eye. The signal is „chopped“ into smaller portions at a rate not visible to the eye. The dimming ratio is proportional to the green coloured area. The PWM-dimming yields much better dimming rates than the analogue dimming.

Analogue Dimming: The height of the signal (e.g. voltage) is adjusted to have a lower light output. The PLANON® dimming range for this technology is 100…~50%.


0,0

20,0

40,0

60,0

80,0

100,0

120,0

0,0 20,0 40,0 60,0 80,0 100,0 120,0

Input Power [%]

Lu

min

anc

e [%

]

PLANON® dimming technology: Luminance vs. power


PLANON® dimming technology: Luminance vs. chromaticity

0.310

0.290

0.300

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

Ch

rom

atic

ity

cd/m²

y CIE

Colour shift during dimmingx, y < 0.0005@ 500...1000 cd/m²

0.330

0.320

0.270

0.280

x CIE


PLANON® luminance homogeneity

Luminance cross section for 20,1” lamp with lightbox


PLANON® relative spectral distribution


Angular characteristics

20,1“ lamp with standard diffuser set


Features

Lamp: 18,1”... 21,3” Input power: 70...130W Input voltage: 100... 240V AC Dimming ratio: 1:5 Dimming interface: PWM,

optically insulated DC-output: 12V / 1A

(for LCD driving circuit) Driving control: with microcontroller Dimensions: 211 × 132 × 33 mm3

Inverter / ECG QT PLANON 5


Features

Lamp: 10,4”... 15,0” Input power: 20... 40W Input voltage: 24V DC Dimming ratio: 1:5 Dimming interface: PWM,


(for LCD driving circuit) Driving control: with microcontroller,

in circuit programmable Dimensions: 200 × 40 × 20 mm3

Inverter / ECG QT PLANON 6


Features

Lamp: 18,1”... 24” Input power: 20... 100W Input voltage: 24V DC Dimming ratio: 1:5 Dimming interface: PWM,


(for LCD driving circuit) Driving control: with microcontroller,

in circuit programmable Dimensions: 200 × 75 × 20 mm3

Inverter / ECG QT PLANON 8(under development)


Loose thermal contact

Straight metal plate (thickness appr. 1mm Al)

Reasons:

Method:

Improved temperature homogeneity on lamp backside, necessary to avoid critical mechanical tensions in glass vessel

PLANON®

Metal plate

PLANON® handling / design guide lines:

EMI shield

Heat sink

Metal plate


PLANON®

Insulation

Reasons: Insulation of operating voltage at the lamp soldering points(peak voltage: appr. 2kV; starting voltage: up to 4 kV)


Insulation


Standard diffuser set:

PLANON®

Diffuser

Diffuser film DF100SX

Diffuser plate 1mm (3x)

Diffuser plate 2mm

PLANON® lamp


Reasons: Optimisation of the lamp system’s luminance homogeneity.

Diffuser stack


Frame

Intersection:

Diffuser

PLANON®

Al-Plate

Frame


Mounting frame


Application Key advantages PLANON®

Examples of current PLANON® LCD applications

Point of sales, e.g. gas stations

Lifetime Brightness

Robustness

Lifetime Brightness

Lifetime Brightness

Temperature independence

Lifetime Brightness


Lifetime Brightness

Maintenance Colour coordinates

Lifetime Brightness


Passenger information systems

Air / ground traffic control

Touch panels / ATM / Order confirmation boards

Factory automation

Medical


Stable light output even in the outdoor temperature range from –30°C to +85°C.

High display brightness of up to 1200 cd/m².

Excellent maintenance with guaranteed values of 70% initial luminance even after 5 years of continuous operation.

PLANON® application

Point of sales/ Point of interest displays

SIEMENS iSFT


115

Ideal backlight for industrial applications such as in public transportation systems

Unaffected by changes in ambient temperature

High vibration and shock resistance

Long lifetime, up to 100,000 h

Circuit power less than 35 W for 15” diagonal lamp

450 cd/m2 display luminance


Passenger information systems in S-Bahn trains, Berlin

Information systems


High luminance, up to 600 cd/m² at SXGA resolutions

Large size backlights up to 21.3”

Excellent reliability and maintenance values of 100,000 h to half brightness


Airport Tower Frankfurt

Air traffic control


Excellent maintenance, luminance >70% of initial value after 5 years of continuous operation

Luminance independent of temperature and vibration

High brightness for control panels and process monitors up to 720 cd/m2


Factory automation


CCFL based back light, 0 h CCFL based back light, 1 year PLANON® based back light, 0 h

Key features

Display: 10,4“, VGA

Display luminance: 350 cd/m2

B/L power consumption: ~10W

Lamp lifetime (MTTH): up to 100,000 h

PLANON® application:Factory automation - example


X 1000 hours

Lu

min

an

ce

[c

d/m

²]

0

50

100

150

200

250

300

350

2 8 20 30 40 50 60 70 80 90 100

Planon®, measured values

Planon®, expected course

CCFL, datasheet values

CCFL measured values

Luminance versus lifetime

Higher stress, regardingExample:

Application as LCD backlighting systems in control panels in factory automation

vibration shock

temperature dust

Application in factory automation


LCD

CCFL

Diffuser + Optical films

Light box

Heat accumulation

Heat dissipationvia back plate

PLANON®

Metal back plate

Heat-flow in „multiple tubing“-CCFL and PLANON® backlights


Multimedia displays in diagonal sizes– 15“ to 30“ TV

Desktop monitor

Multimedia

LCD and PLANON® for multimedia AV displays

Unique lighting power – high quality bright images

(300- 400 cd/m2 on the display surface) – ± 80° wide viewing and illumination angle – constant centre to edge luminance

Lamp lifetime – up to 100,000 h to 50% of initial luminance

Instant start with high luminance – power save advantage

Mercury-free backlight – no waste disposal problems


Unique light source – bright luminance 5000 to 10000 cd/m2 – luminance constant from centre to edge

Dimming ratio (100:10)

Extremely thin - only 10 mm

Mercury-free light source – no waste disposal problems

Long lifetime, up to 100,000 h at 50% of initial luminance

Instant start with high luminance (run-up within 5ms)

Luminance independent of temperature

PLANON® application: As a pixel for a mega display

Range of colour temperatures and different colours

Unaffected by frequent switching (17 000 000 switches in 3 months)

– switching cycle 2Hz to 25Hz


PLANON® application:Photo lighting

OSRAM PLANON® bright, robust, flat, long-lasting- ready for film

The extremely flat design of PLANON®

along with its high luminance and homogeneity makes it much easier for cameramen and photographers to set up lighting systems.

PLANON® as illumination for photography and film, soft illumination in the smallest space


Illumination of SIEMENS-Cafeteria, Zurich

PLANON® application:General lighting


PLANON® application:General lighting

PLANON® backlighting fused glass – in a luminaire by LumenArt

PLANON® in a luminaireby Belux, shown at Light + Building 2002

PLANON® in pendant and floor lamps, design by Bernd Moeller


PLANON® meets demands of tomorrow’s ultra bright, mercury-free, vehicular LC-Displays in dashboard environments.


Bosch Concept Car, IAA ´99

Future perspective for automotive application

Its luminous output is virtually independent of ambient temperature in the range from -30°C to +85°C.

13 June 2002 Page: 1 FS M PLANON ® The new dimension in light. Barrier discharge lamp technology...

Documents

Transcript of 13 June 2002 Page: 1 FS M PLANON ® The new dimension in light. Barrier discharge lamp technology...