Advanced Materials Technologies,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 18, 2024
Abstract
White
light‐emitting
diodes
(WLEDs),
known
for
their
high
brightness,
efficiency,
and
long
lifetime,
are
widely
utilized
in
the
backlight
of
liquid
crystal
displays.
However,
it
is
still
difficult
to
improve
color
gamut
WLEDs
while
maintaining
L
50
lifetime.
The
luminous
characteristics
employing
different
combinations
quantum
dots
phosphor
investigated
this
work.
Additionally,
investigations
on
lifetime
carried
out
by
a
two‐step
accelerated
stress
method.
Finally,
an
ensemble
machine
learning
model
proposed
predict
WLEDs,
achieving
predictive
accuracy
with
R
2
0.986.
Abstract
GaN‐based
miniaturized
light‐emitting
diodes
(mini‐LEDs)
have
emerged
as
highly
promising
light
sources
for
high‐performance
aircraft
cockpit
displays.
Among
these
diodes,
vertically
stacked
blue‒green
dual‐color
mini‐LEDs
are
fabricated
and
show
excellent
color‐tunable
properties.
When
packaged
with
K
2
SiF
6
:Mn
4+
,
an
impressive
color
gamut
area
ratio
of
113.63%
NTSC
is
demonstrated.
However,
vertical
optical
crosstalk
originates
from
the
photoluminescence
(PL)
effect
green
epitaxial
layer
when
blue
mini‐LED
powered
on,
making
precise
chromatic
characteristics
difficult
to
obtain.
To
address
this
problem,
a
deep
neural
network
(DNN)
proposed,
which
combines
forward
modeling
inverse
design
in
tandem
architecture.
This
DNN
supports
current
modulation
scheme
that
enables
control
chromaticity
coordinates,
achieving
Δ
u
′
v
0.003.
These
advancements
materials
device
strategies
pave
way
developing
low
difference,
high‐resolution
display
systems
cockpits.
AIP Advances,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 1, 2025
Attention
should
be
paid
to
the
circadian
rhythm
effect,
photobiological
safety,
and
color
gamut
coverage
(CGC)
of
displays.
In
this
study,
we
use
genetic
algorithm
search
displays
satisfying
demands
health,
wide
gamut,
promise
improve
working
efficiency
in
conditions,
when
correlated
temperature
is
around
6500
K.
We
also
studied
variations
optimal
results
changing
peak
wavelength
full
width
at
half
maximum
(FWHM),
finding
that
impacts
wavelengths
are
greater
than
those
FWHMs
on
action
factor
(CAF),
blue
light
hazard,
CGC,
a
balance
made
between
CAF
luminous
efficacy
radiation.
Small Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 27, 2025
Abstract
A
crucial
step
in
fabricating
full‐color
organic
light‐emitting
diode
(OLED)
displays
is
patterning
the
emissive
layer
(EML).
Traditional
methods
utilize
thermal
evaporation
through
metal
masks.
However,
this
limits
achievable
resolution
required
for
emerging
microdisplay
technologies.
Alternatively,
direct
photolithography,
wherein
to
be
patterned
serves
as
a
photoresist,
offers
cost‐effective
method
producing
high‐resolution
displays.
Direct
photopatterning
small
molecules
used
EMLs
OLEDs
are
introduced.
This
employs
photopolymerizable
vinylbenzyl
moieties
directly
anchored
host
and
dopant
small‐molecule
emitters.
By
photoinitiating
free
radical
polymerization
reaction
between
under
mild
annealing
conditions
(60
°C),
EML
can
photopatterned
using
an
i
‐line
UV
source.
Mild
critical
achieving
reactions
at
low
irradiation
dose
(0.6
J
cm
−2
)
without
degrading
luminescent
properties
of
process
referred
heat‐assisted
(HADP).
Using
HADP,
red,
green,
blue
OLED
emitters
with
minimum
pattern
width
2
µm
successfully
fabricated.
These
side‐by‐side
by
simply
repeating
steps
three
times.
promising
alternative
patterns
desired
ultrahigh‐resolution
OLED‐based
technology.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 9, 2025
Abstract
In
this
article,
color
filters
(CFs)
emitting
linearly
polarized
light,
achieving
both
full‐color
and
pixel‐level
precision,
which
can
simultaneously
offer
high
saturation,
ambient
contrast
ratio
(ACR),
efficiency
for
modern
displays,
are
disclosed.
The
quantum
rods
(QRs)
exhibit
a
narrow‐band
emission
that
effectively
mitigates
traditional
challenges
of
purity
light
losses.
Specially
designed
ligands
on
the
QR
surfaces
allow
higher
load
material
into
polymer
matrix
with
uniform
alignment.
Optimizing
inkjet
printing,
photolithography,
photoalignment
processes,
remarkable
degree
polarization
(DOP)
0.65
is
achieved
precisely
patterned
red
green
CFs.
Due
to
unidirectionally
aligned
QRs,
liquid
crystal
display
(LCD)
equipped
QRCF
shows
enhanced
ACR,
highlighting
advantages
their
application
in
next‐generation
displays
over
other
types
photoluminescence
The Journal of Physical Chemistry Letters,
Journal Year:
2025,
Volume and Issue:
unknown, P. 3888 - 3903
Published: April 10, 2025
Organic
grido-architectures
offer
not
only
state-of-the-art
models
for
exploring
the
complex
relationships
of
multicarrier
coherence
among
excitons,
charges,
photons,
electrons,
and
phonons
but
also
organic
high-dimensional
nanomaterials
flexible
electronics
intelligence.
Herein,
we
initiate
fundamental
progress
perspective
on
gridofluorene-based
zero-,
one-,
two-,
three-dimensional
nanomolecules
their
optoelectronic
features.
From
future
point
view,
sterically
trans-dimensional
hierarchically
cross-scale
effects
these
covalent
frameworks
nanostructures
are
discussed
photophysical,
electrical,
mechanical
thermal
properties.
multiscale
systems,
with
feature
synergistically
molecule-programmable
integration
diverse
functionalities,
open
a
bright
door
to
electronics,
intelligent
molecules,
devices,
even
organobots
as
well
artificially
robotic
chemists
(AiRCs).
