IEC 61988-4:2007

INTERNATIONAL IEC
STANDARD
CEI
61988-4
NORME
First edition
INTERNATIONALE
Première édition
2007-04
Plasma display panels –
Part 4:
Climatic and mechanical testing methods

Panneaux d'affichage à plasma –
Partie 4:
Méthodes d’essais climatiques et mécaniques

Reference number
Numéro de référence
IEC/CEI 61988-4
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INTERNATIONAL IEC
STANDARD
CEI
61988-4
NORME
First edition
INTERNATIONALE
Première édition
2007-04
Plasma display panels –
Part 4:
Climatic and mechanical testing methods

Panneaux d'affichage à plasma –
Partie 4:
Méthodes d’essais climatiques et mécaniques

PRICE CODE
R
CODE PRIX
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
Pour prix, voir catalogue en vigueur

– 2 – 61988-4 © IEC:2007
CONTENTS
FOREWORD.3

1 Scope.5
2 Normative references .5
3 Terms, definitions and letter symbols .6
4 Structure of testing equipment.6
5 Standard conditions.6
5.1 Standard reference atmosphere .6
5.2 Standard atmospheric conditions for reference measurements and tests .6
5.3 Standard atmospheric conditions for measurement and tests .7
5.4 Standard atmospheric conditions for assisted drying .7
5.5 Recovery conditions .7
5.6 Standard installation conditions.7
5.7 Standard measuring conditions .7
5.8 PDP module state .7
5.9 Operating conditions .7
6 Measurements.8
7 Climatic testing methods .8
7.1 Storage at high temperature .8
7.2 Storage at low temperature .10
7.3 Damp heat, cyclic.11
7.4 Damp heat at steady state (Operation) .12
7.5 Operation at low temperature .13
7.6 Low air pressure.15
8 Mechanical testing methods .16
8.1 Vibration (sinusoidal).16
8.2 Shock.17
8.3 Transportation drop .19
8.4 Toppling .19

Bibliography.20

Figure 1 – Testing procedure at the low temperature (operation) .14
Figure 2 – Configuration of PDP module directions .17
Figure 3 – Example of PDP shock testing equipment .18

Table 1 – Standard conditions for reference measurements and tests.6
Table 2 – Peak value and duration.18

61988-4 © IEC:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
PLASMA DISPLAY PANELS –
Part 4: Climatic and mechanical testing methods

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61988-4 has been prepared by IEC technical committee 110: Flat
panel display devices.
The text of this standard is based on the following documents:
FDIS Report on voting
110/107/FDIS 110/110/RVD
Full information on the voting for the approval on this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 61988-4 © IEC:2007
A list of all the parts in the IEC 61988 series, under the general title Plasma display panels,
can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
61988-4 © IEC:2007 – 5 –
PLASMA DISPLAY PANELS –
Part 4: Climatic and mechanical testing methods

1 Scope
This part of IEC 61988 defines test methods for evaluating environmental and mechanical
endurance characteristics of plasma display modules (PDP modules).
2 Normative references
The following referenced standards are indispensable for the application of this standard. For
standards with explicit dates, only the edition cited applies. For undated standards, the latest
edition of the referenced standard (including any amendments) applies.
IEC 60068-1:1988, Environmental testing – Part 1: General and guidance
IEC 60068-2-1:1990, Environmental testing – Part 2: Tests – Tests A: Cold
IEC 60068-2-2:1974, Environmental testing – Part 2: Tests – Tests B: Dry heat
IEC 60068-2-6, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-13, Environmental testing – Part 2: Tests – Test M: Low air pressure
IEC 60068-2-27:1987, Environmental testing – Part 2: Tests – Test Ea and guidance: Shock
IEC 60068-2-30, Environmental testing – Part 2-30: Tests – Test Db: Damp heat, cyclic (12 h
+ 12 h cycle)
IEC 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
IEC 61747-5:1998, Liquid crystal and solid-state display devices – Part 5: Environmental,
endurance and mechanical test methods
IEC 61988-1, Plasma display panels – Part 1: Terminology and letter symbols
ISO 2248, Packaging – Complete, filled transport packages – Vertical impact test by dropping
ISO 4180-1, Complete, filled transport packages – General rules for the compilation of
performance test schedules – Part 1: General principles
ISO 4180-2, Complete, filled transport packages – General rules for the compilation of
performance test schedules – Part 2: Quantitative data

– 6 – 61988-4 © IEC:2007
ISO 10531, Packaging – Complete, filled transport packages – Stability testing of unit loads
3 Terms, definitions and letter symbols
For the purposes of this document, most of the definitions used in this standard comply with
IEC 60068-1 and IEC 61988-1. The following symbols are used in addition to those defined in
IEC 61988-1.
3.1
P
op
air pressure at which the PDP module is operated during the tests
3.2
P
st
air pressure at which the PDP module is stored in a non-operating state during the tests
4 Structure of testing equipment
The system diagrams and/or driving conditions of the testing equipment shall comply with the
structure specified in each item.
5 Standard conditions
5.1 Standard reference atmosphere
Temperature: 25 °C
Air pressure: 101,3 kPa
NOTE No requirement for relative humidity is given because correction by calculation is generally not possible.
If the parameters to be measured depend on temperature and/or pressure and the law of
dependence is known, the values shall be measured in the conditions specified in 5.3 and,
if necessary, be corrected by calculation to the standard reference atmospheric conditions
above.
5.2 Standard atmospheric conditions for reference measurements and tests
If the parameters to be measured depend on temperature, pressure and humidity and the law
of dependence is unknown, the atmospheric conditions to be specified shall be selected from
the following values, as shown in Table 1.
Table 1 – Standard conditions for reference measurements and tests
a a
Temperature Relative humidity Air pressure
°C % RH kPa
20 ± 3 45 to 75 86 to 106
25 ± 3
30 ± 3
35 ± 3
a
Inclusive values.
61988-4 © IEC:2007 – 7 –
5.3 Standard atmospheric conditions for measurement and tests
Unless otherwise specified, all tests and measurements shall be carried out under standard
atmospheric conditions:
− temperature: 15 °C to 35 °C;
− relative humidity: 25 % to 85 %, where appropriate;
− air pressure: 86 kPa to 106 kPa.
The absolute humidity of the atmosphere shall not exceed 22 g/m .
5.4 Standard atmospheric conditions for assisted drying
Where assisted drying is required before commencing a series of measurements, the
conditions listed below shall be used on the PDP module for at least 2 h, unless otherwise
prescribed by the relevant specification:
− temperature: (55 ± 3) °C;
− relative humidity: not exceeding 20 %;
− air pressure: 86 kPa to 106 kPa.
When the specified temperature for the dry heat test is lower than 55 °C, assisted drying shall
be carried out at that lower temperature.
5.5 Recovery conditions
The recovery shall be carried out in the conditions specified in 5.3 of IEC 60068-1:
− temperature: 15 °C to 35 °C;
− relative humidity: 25 % to 75 %;
− air pressure: 86 kPa to 106 kPa.
5.6 Standard installation conditions
Unless otherwise specified in the relevant specification, stand the PDP module keeping
adequate clearance to avoid airflow disturbance. The mounting structure of the PDP module
shall be specified in the relevant specification.
5.7 Standard measuring conditions
The standard measuring conditions described in IEC 61988-2 shall be applied.
5.8 PDP module state
For the non-operating test, the PDP module shall be either unpacked and turned off, or as
otherwise specified in the relevant specification.
For the operating test, the PDP module shall be either in the unpacked, turned off and
ready-for-use state, or as otherwise specified in the relevant specification.
5.9 Operating conditions
Full screen: The signal input sets at (15 ± 1) % of white level without gamma correction or
equivalent input level when gamma correction is used.
In case a different signal input is used, it shall be noted in the report.
NOTE The 15 % signal input level is a typical value for video.

– 8 – 61988-4 © IEC:2007
6 Measurements
The following items shall be evaluated on initial, intermediate and final measurements:
a) visual and optical performance (refer to IEC 61988-2-1 and IEC 61988-2-2);
b) electrical performance (refer to IEC 61988-2-1 and IEC 61988-2-2);
c) mechanical performance.
If additional measurements are carried out, they shall be noted in the report.
Data about initial, intermediate and final measurements shall be recorded in the report.
7 Climatic testing methods
The testing equipment used shall be noted in the relevant specification.
NOTE Make sure that the actual value, such as temperature, is within the specified value and a report on the
actual value is made.
7.1 Storage at high temperature
7.1.1 Purpose
The purpose of this test is to evaluate the performance of the PDP module after high
temperature storage.
7.1.2 Storage conditions
Test Bb of IEC 60068-2-2 shall be applied with the following specific conditions.
Test Bb: Dry heat for non heat-dissipating specimen with gradual change of temperature.
a) Temperature
The temperature shall be selected from the values given below:
(100 ± 3) °C
(95 ± 3) °C
(90 ± 3) °C
(85 ± 3) °C
(80 ± 3) °C
(75 ± 3) °C
(70 ± 3) °C
(65 ± 3) °C
(60 ± 3) °C
(55 ± 3) °C
(50 ± 3) °C
(45 ± 3) °C
(40 ± 3) °C
(35 ± 3) °C
(30 ± 3) °C
61988-4 © IEC:2007 – 9 –
The temperature selected shall be noted in the report.
b) Duration
The duration shall be selected from the values given below:
2 h, 16 h, 24 h, 48 h, 72 h, 96 h, 120 h, 192 h, 240 h, 300 h, 500 h and 1 000 h.
The duration selected shall be noted in the report.
c) Humidity
The absolute humidity of the atmosphere should not exceed 20 g/m (corresponding
approximately to 50 % relative humidity at 35 °C).
7.1.3 Testing procedures
a) The chamber shall be at the temperature of the laboratory. The PDP module, while being
at the ambient temperature of the laboratory, shall be introduced into the chamber in
accordance with 5.6 or as otherwise specified.
b) The temperature in the chamber shall then be adjusted to the temperature appropriate to
the degree of severity and time shall be allowed for the chamber to reach temperature
stability. (Temperature stability is defined in 4.8 of IEC 60068-1.) The rate of change of
temperature in the chamber shall not exceed 3 °C/min, averaged over a period of not
more than 5 min. The test temperature shall be measured in accordance with 4.6 of
IEC 60068-1.
c) The PDP module shall then be exposed to the high temperature conditions for the duration
as specified in the relevant specification. The duration shall be measured from the moment
temperature stability has been reached.
d) If required by the relevant specification, intermediate measurements shall be performed in
accordance with 7.1.4.
e) At the end of this period, the PDP module shall remain in the chamber and the temperature
shall be gradually lowered to a value lying within the limits of standard atmospheric
conditions for testing. The rate of change of temperature in the chamber shall not exceed
3 °C/min, averaged over a period of not more than 5 min. At the end of this period, the
PDP module shall be subject to the recovery procedure in the chamber or otherwise as
appropriate.
7.1.4 Intermediate measurements
The relevant specification may require functional tests during the conditioning programme.
When intermediate measurements are required, the relevant specification shall define the
measuring items and the period(s) during the conditioning, and the results shall be noted in
the report.
7.1.5 Recovery
a) The PDP module shall then remain under standard atmospheric conditions for recovery for
a period adequate for the attainment of temperature stability.
b) If required by the relevant specification, the PDP module shall be measured during the
recovery period.
– 10 – 61988-4 © IEC:2007
7.2 Storage at low temperature
7.2.1 Purpose
The purpose of this test is to evaluate the performance of the PDP module after low
temperature storage.
7.2.2 Storage conditions
Test Ab of IEC 60068-2-1 shall be applied with the following specific conditions.
Test Ab: Cold for non heat-dissipating specimen with gradual change of temperature.
a) Temperature
The temperature shall be selected from the values given below:
(–50 ± 3) °C
(–45 ± 3) °C
(–40 ± 3) °C
(–35 ± 3) °C
(–30 ± 3) °C
(–25 ± 3) °C
(–20 ± 3) °C
(–15 ± 3) °C
(–10 ± 3) °C
(–5 ± 3)  °C
(0 ± 3)   °C
The temperature selected shall be noted in the report.
b) Duration
The duration shall be selected from the values given below:
2 h, 16 h, 24 h, 48 h, 72 h, 96 h, 120 h, 192 h, 240 h, 300 h, 500 h and 1 000 h.
The duration selected shall be noted in the report.
7.2.3 Testing procedures
a) The chamber shall be at the temperature of the laboratory. The PDP module, while being
at the ambient temperature of the laboratory, shall be introduced into the chamber in
accordance with 5.6, or as otherwise specified.
b) The temperature in the chamber shall then be adjusted to the temperature appropriate to
the degree of severity and time shall be allowed for the chamber to reach temperature
stability. (Temperature stability is defined in 4.8 of IEC 60068-1.) The rate of change of
temperature in the chamber shall not exceed 3 °C/min, averaged over a period of not
more than 5 min. The test temperature shall be measured in accordance with 4.6 of
IEC 60068-1.
c) The PDP module shall then be exposed to the low temperature conditions for the duration
as specified in the relevant specification. The duration shall be measured from the moment
temperature stability has been reached.
d) If required by the relevant specification, intermediate measurements shall be performed in
accordance with 7.2.4.
61988-4 © IEC:2007 – 11 –
e) At the end of this period, the PDP module shall remain in the chamber and the temperature
shall be gradually raised to a value lying within the limits of standard atmospheric
conditions for testing. The rate of change of temperature in the chamber shall not exceed
3 °C/min, averaged over a period of not more than 5 min. At the end of this period, the
PDP module shall be subject to the recovery procedure in the chamber, or otherwise as
appropriate.
7.2.4 Intermediate measurements
The relevant specification may require functional tests during the conditioning programme.
When intermediate measurements are required, the relevant specification shall define the
measuring items and the period(s) during the conditioning, and the results shall be noted in
the report.
7.2.5 Recovery
a) The droplets of water may be removed.
b) The PDP module shall then remain under standard atmospheric conditions for recovery for
a period until the dew condensation is removed, with a minimum of 5 h.
c) If required by the relevant specification, the PDP module shall be measured during the
recovery period.
7.3 Damp heat, cyclic
7.3.1 Purpose
The purpose of this test is to evaluate the performance of the PDP module after damp heat,
cyclic test.
IEC 60068-2-30 shall be applied with the following specific conditions.
7.3.2 PDP module installation
The PDP module shall be introduced into the chamber in accordance with 5.6 or as
otherwise specified in the relevant specification.
7.3.3 Intermediate measurements
The relevant specification may require functional tests during the conditioning programme.
When intermediate measurements are required, the relevant specification shall define the
measuring items and the period(s) during the conditioning, and the results shall be noted in
the report.
7.3.4 Recovery
The PDP module shall be placed under the standard atmospheric conditions for assisted
drying, or shall remain under standard atmospheric conditions for recovery for a period until
the dew condensation is removed, with a minimum of 5 h.

– 12 – 61988-4 © IEC:2007
When the PDP module is placed under the standard atmospheric conditions for assisted
drying, placing the PDP module under the standard atmospheric conditions (at least 2 h)
shall follow.
7.4 Damp heat at steady state (operation)
7.4.1 Purpose
The purpose of this test is to evaluate the performance of the PDP module after exposure to
damp heat operating conditions.
7.4.2 Test conditions
This test shall be executed in a chamber or a room in which constant temperature and
humidity can be maintained. Water drop condensation should be avoided.
IEC 60068-2-78 shall be applied with the following specific conditions.
a) Temperature and humidity
The temperature and humidity shall be selected from the values given below:
Temperature: (40 ± 3) °C
(45 ± 3) °C
(50 ± 3) °C
(55 ± 3) °C
(60 ± 3) °C
Humidity: (85 ± 3) % RH
(93 ± 3) % RH
The temperature and humidity selected shall be noted in the report.
b) Time before PDP module power-on
After the specified temperature and humidity have been reached, the time before the
PDP module power-on shall be selected from the values given below:
2 h, 4 h, 8 h, 12 h and 24 h.
The time before the PDP module power-on selected shall be noted in the report.
c) Duration
The duration shall be selected from the values given below:
24 h, 48 h, 72 h, 96 h, 120 h, 240 h, 500 h and 1 000 h.
The duration selected shall be noted in the report.
7.4.3 Testing procedures
The PDP module shall be introduced into the chamber in accordance with 5.6 or as otherwise
specified.
For testing procedures other than described above, refer to Clause 7 of IEC 60068-2-78.

61988-4 © IEC:2007 – 13 –
7.4.4 Recovery
The PDP module shall be placed under the standard atmospheric conditions for assisted
drying, or shall remain under standard atmospheric conditions for recovery for a period until
the dew condensation is removed, with a minimum of 5 h.
When the PDP module is placed under the standard atmospheric conditions for assisted
drying, placing the PDP module under the standard atmospheric conditions (at least 2 h)
shall follow.
7.5 Operation at low temperature
7.5.1 Purpose
The purpose of this test is to evaluate the performance of the PDP module at low temperature
operating conditions.
7.5.2 Test chamber
a) The chamber shall be capable of maintaining the specified temperature in the working
space within the tolerances given in 7.5.3, taking into account the effect of the PDP
module under test on chamber conditions. Forced air circulation may be used to maintain
homogeneous conditions.
b) In order to limit radiation problems, the temperature of the walls of the chamber, after
temperature stability has been reached, shall not differ by more than 8 % of the specified
ambient temperature of the test, expressed in K. This requirement applies to all parts of the
chamber walls and the PDP modules shall be unable to “see” any heating or cooling
elements which do not comply with this requirement.
c) The temperature tolerances given in 7.5.3 are intended to take account of absolute errors
in measurements and slow changes of temperature. For heat-dissipating PDP modules,
the temperature near the PDP module is influenced by the effect of heat dissipation of the
PDP module itself and can be different from the values measured in the positions
defined in IEC 60068-1.
7.5.3 Test conditions
a) Temperature
The temperature shall be selected from the values given below:
(–20 ± 3) °C
(–15 ± 3) °C
(–10 ± 3) °C
(–5 ± 3)  °C
(0 ± 3)   °C
The temperature selected shall be noted in the report.
b) Time before PDP module power-on
After the specified temperature has been reached, the time before the PDP module
power-on shall be selected from the values given below:
2 h, 4 h, 8 h, 12 h and 24 h.
The time before the PDP module power-on selected shall be noted in the report.

– 14 – 61988-4 © IEC:2007
c) Duration
The duration shall be 4 h as shown in Figure 1 or longer. In case it is longer it shall be
noted in the report.
7.5.4 Initial measurements
Initial measurements shall be carried out as specified by the relevant specification.
7.5.5 Testing procedures
a) The PDP module shall be introduced into the chamber in the ready-for-use state.
b) Adjust the temperature in the chamber to the prescribed temperature and maintain at the
temperature for the prescribed duration. The temperature and time before the PDP module
power-on shall be selected from the values given in 7.5.3.
c) Operate the PDP module. See 5.9 for the operating condition.
d) Measure the PDP module 5 min after the PDP module has been turned on (low
temperature, first measurement on Figure 1).
e) Keep the PDP module operated for 4 h.
f) Measure the PDP module (low temperature second measurement on Figure 1).
g) Turn off the PDP module and adjust the chamber to the standard atmospheric conditions.
The PDP module shall not show condensation.
Figure 1 shows the testing procedure at the low temperature operation mentioned above.

Temperature  °C Final measurement
Standard atmospheric
condition: (25 ± 3) °C
Time before PDP
module power-on
4 h
5min
Temperature: (0 ± 3) °C
(Example)
Time  h
st
nd
Low temperature 1
Power on Low temperature 2
Introduce PDP module
PDP module measurement measurement
into the chamber
IEC  588/07
Figure 1 – Testing procedure at the low temperature (operation)
7.5.6 Final measurements
Final measurements shall be carried out as specified by the relevant specification.

61988-4 © IEC:2007 – 15 –
7.5.7 Information to be given in the relevant specification
When this test is included in the relevant specification, the following details shall be given as
far as they are applicable:
a) initial measurements;
b) temperature and time before PDP module power-on;
st nd
c) low temperature 1 and 2 measurements;
d) final measurements.
7.6 Low air pressure
7.6.1 Purpose
The purpose of this test is to evaluate the influence of air pressure on the assumption that the
PDP module is used at high altitude area.
7.6.2 Test conditions
IEC 60068-2-13 shall be applied with the following specific conditions.
7.6.2.1 Operating test
This test starts at ambient conditions.
Air pressure shall be reduced 1 kPa/min or slower, starting from atmospheric pressure
(86 kPa to106 kPa) down to P .
op
Air pressure, P , shall be selected from the values given below:
op
(60 ± 5) kPa;
(70 ± 5) kPa;
(80 ± 5) kPa.
The pressure selected shall be noted in the report.
7.6.2.2 Non-operating test
Air pressure shall be reduced 4 kPa/min or slower, starting from atmospheric pressure
(86 kPa to106 kPa) down to P .
st
Air pressure, P shall be selected from the values given below:
st ,
(20 ± 5) kPa
(30 ± 5) kPa
(40 ± 5) kPa
(50 ± 5) kPa
The pressure selected shall be noted in the report.
7.6.3 Duration
The duration shall be selected from the values given below:
5 min, 30 min and 2 h.
– 16 – 61988-4 © IEC:2007
The duration selected shall be noted in the report.
7.6.4 Testing procedures
a) The chamber shall be within the temperature range specified by the standard atmospheric
conditions for testing. For non-operating tests, the PDP module shall be introduced into the
chamber in accordance with 5.6 or as otherwise specified.
b) The pressure in the chamber shall then be reduced to the value appropriate to severity.
c) When operating tests are required, the PDP module shall be switched on or be electrically
loaded. Checks shall be made to ascertain whether the PDP module is capable of
functioning in accordance with the relevant specification. The PDP module may remain
under operating conditions for the specified duration, or be switched off as prescribed in
the relevant specification. For heat-dissipating PDP modules, the relevant specification
may require that the PDP module is switched on and adequate time allowed for it to reach
thermal stability before or after the air pressure is reduced and functional tests and/or
measurements are made.
d) The air pressure shall be maintained for the specified duration.
e) The air pressure shall be restored to the standard atmospheric conditions at the end of the
tests and measurements. Even if required by the relevant specification, the rate of change
of air pressure shall not exceed 10 kPa/min.
8 Mechanical testing methods
The testing equipment used shall be noted in the relevant specification.
NOTE Make sure that the actual value, such as acceleration, is within the specified value and a report on the
actual value is made.
8.1 Vibration (sinusoidal)
IEC 60068-2-6 and 2.3 of IEC 61747-5 shall be applied with the following specific conditions.
In case of contradiction between these standards, 2.3 of IEC 61747-5 shall govern.
8.1.1 Purpose
The purpose of this test is to evaluate the assurance of mechanical endurance in a vibration
environment.
8.1.2 Equipment
The equipment, including vibration table and mounting jig, shall be capable of maintaining the
test conditions specified in 8.1.3. It should not resonate in the vibration frequency range.
8.1.3 Test conditions
a) Vibration frequency: continuously swept from (10 ± 1) Hz to (55 ± 1) Hz, swept back to
(10 ± 1) Hz and repeat.
b) Duration: 20 min. each axis
c) Vibration axes: Figure 2 shows the axes of the PDP module.

61988-4 © IEC:2007 – 17 –
d) Acceleration: The acceleration shall be selected from the values given below:
2 2 2 2 2 2 2
10,0 m/s , 10,5 m/s , 11,0 m/s , 11,5 m/s , 12,0 m/s , 12,5 m/s and 13,0 m/s .
The acceleration selected shall be noted in the report.
e) Sweep rate: 1 octave/min with a tolerance of ±10 %.
f) The PDP module shall be mounted on a testing table.

Positive Y-axis
Positive
Positive
Y-axis
Z-axis
Positive X-axis
Screen
Screen centre
centre on
the front
surface of
the panel
IEC  589/07
Figure 2 – Configuration of PDP module directions

8.2 Shock
8.2.1 Purpose
The purpose of this test is to evaluate the assurance of mechanical endurance after
mechanical shocks.
8.2.2 Equipment
The equipment, including shock generator and mounting jig, shall be capable of maintaining
the test conditions specified in 8.2.3. It should not produce unnecessary vibration.
Figure 3 shows an example of shock testing equipment. The PDP module shall be clamped
during the test.
– 18 – 61988-4 © IEC:2007
Mounting jig
PDP module
Mounting table
Shock generator
Shock direction
IEC  590/07
Figure 3 – Example of PDP shock testing equipment
8.2.3 Test conditions
IEC 60068-2-27 and 2.4 of IEC 61747-5 shall be applied with the following specific conditions.
In case of contradiction between these standards, 2.4 of IEC 61747-5 shall govern.
The waveform to be used for acceleration is half sine as shown in Figure 2 of IEC 60068-2-27.
Peak value of acceleration for each direction shall be selected from Table 2. Refer to Figure 2
for X, Y and Z.
Table 2 – Peak value and duration
X Y Z Duration
2 2 2
m/s m/s m/s ms
Condition 1 100 100 30 30
Condition 2 150 150 50 11
NOTE Gravitational acceleration at the earth’s surface is approximately 10 m/s .

PDP module with a screen diagonal of equal to or larger than 1,25 m (50-inch-type) is
recommended to be tested at condition 1.

61988-4 © IEC:2007 – 19 –
PDP module with a screen diagonal of smaller than 1,25 m (50-inch-type) is recommended to
be tested at condition 2.
The condition selected shall be noted in the report.
Application of shocks:
The PDP module shall be subjected to three successive shocks in both positive and negative
directions of three mutually perpendicular axes chosen so that faults are most likely to be
revealed, i.e. a total of 18 shocks.
8.3 Transportation drop
Refer to the following standards: ISO 2248, ISO 4180-1 and ISO 4180-2.
8.4 Toppling
Refer to the following standard: ISO 10531.

– 20 – 61988-4 © IEC:2007
Bibliography
IEC 61988-2-1:2002, Plasma display panels – Part 2-1: Measuring methods – Optical
IEC 61988-2-2:2003, Plasma display panels – Part 2-2: Measuring methods – Optoelectrical
___________
– 22 – 61988-4 © CEI:2007
SOMMAIRE
AVANT-PROPOS.23

1 Domaine d'application .25
2 Références normatives.25
3 Termes, définitions et symboles littéraux .26
4 Structure de l’équipement de mesure .26
5 Conditions normales.26
5.1 Atmosphère de référence normale .26
5.2 Conditions atmosphériques normales pour les mesures et les essais de
référence.26
5.3 Conditions atmosphériques normales pour la mesure et les essais.27
5.4 Conditions atmosphériques normales pour séchage assisté .27
5.5 Conditions de reprise .27
5.6 Conditions d’installation normales .27
5.7 Conditions normales de mesure .27
5.8 Etat du module PDP .27
5.9 Conditions de fonctionnement .27
6 Mesures .28
7 Méthodes d’essais climatiques .28
7.1 Stockage à haute température.28
7.2 Stockage à basse température .29
7.3 Chaleur humide (cyclique) .31
7.4 Chaleur humide (en fonctionnement) en essai continu.31
7.5 Fonctionnement à basse température.33
7.6 Basse pression atmosphérique.35
8 Méthodes d’essais mécaniques .36
8.1 Vibrations (sinusoïdales) .36
8.2 Chocs.37
8.3 Chute au cours du transport .39
8.4 Basculement .39

Bibliographie.40

Figure 1 – Procédure d’essai (en fonctionnement) à basse température .34
Figure 2 – Configuration des directions du module PDP.37
Figure 3 – Exemple d’appareil d’essai de chocs du PDP.38

Tableau 1 – Conditions normales pour les mesures et les essais de référence .26
Tableau 2 – Valeur de crête et durée .38

61988-4 © CEI:2007 – 23 –
COMMISSION ELECTROTECHNIQUE INTERNATIONALE
___________
PANNEAUX D'AFFICHAGE A PLASMA –

Partie 4: Méthodes d’essais climatiques et mécaniques

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a
pour objet de favoriser
...