‘II.DISPLAY SPECIFICATIONS1.DefinitionsA.Electronic Display (also referred to as Display)A commercially-available product with a display screen and associated electronics, often encased in a single housing, that as its primary function displays visual information from (i) a computer, workstation or server via one or more inputs, such as VGA, DVI, HDMI, or IEEE 1394; or (ii) a USB flash drive, a memory card, or wireless Internet connection. Common display technologies include liquid crystal display (LCD), light emitting diode (LED), cathode-ray tube (CRT), and plasma display panel (PDP).B.External Power SupplyA component contained in a separate physical enclosure external to the display casing and designed to convert line voltage AC input from the mains to lower DC voltage(s) for the purpose of powering the display. An external power supply (EPS) must connect to the display via a removable or hard-wired male/female electrical connection, cable, cord or other wiring.C.On ModeThe operational mode of a display that is (i) connected to a power source; (ii) has all mechanical (hard) power switches turned on; and (iii) is performing its primary function of producing an image.D.Sleep ModeThe operational mode of a display that is (i) connected to a power source; (ii) has all mechanical (hard) power switches turned on; and (iii) has been placed into a low-power mode by receiving a signal from a connected device (e.g. computer, game console, or set-top box) or by cause of an internal function such as a sleep timer or occupancy sensor. Sleep Mode is considered a “soft” low-power condition, in that the display can be brought out of Sleep Mode by receiving a signal from a connected device or by cause of an internal function.E.Off ModeThe operational mode of a display that is (i) connected to a power source, (ii) engaged by a power switch, and (iii) not providing any function. The user must actuate a mechanical switch to bring the device out of Off Mode. If there is more than one such switch, the tester shall use the most readily available switch.F.LuminanceThe photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle. The standard unit for luminance is candela per square meter (cd/m2).GAutomatic Brightness ControlFor displays, automatic brightness controls is the self-acting mechanism which controls brightness of the display as a function of ambient light.2.Qualifying productsTo qualify for ENERGY STAR, the display must satisfy the following criteria:A.Maximum viewable diagonal screen sizeThe display must have a viewable diagonal screen size of less than or equal to (≤) 60 inches.B.Power SourceThe display must be powered by a separate AC wall outlet, a battery unit that is sold with an AC adapter, or a data or network connection.C.Television TunersIf the display has an integrated television tuner, it may qualify for ENERGY STAR under this specification as long as it is primarily marketed and sold to consumers as a display or as a dual-function display and television. Any display with a television tuner that is marketed and sold exclusively as a television is not eligible to qualify under this specification. Under Tier 2 of this specification, only those displays without tuners may qualify; displays with tuners may qualify under Tier 2 of the Version 3.0 ENERGY STAR TV specification.D.Automatic Brightness Control (ABC)To qualify for ENERGY STAR using the Automatic Brightness Control On Mode power equation, the display must ship with ABC enabled by default.E.External Power SupplyIf the display is shipped with an EPS, the EPS must be ENERGY STAR qualified or meet the no-load and active mode efficiency levels provided in the ENERGY STAR Program Requirements for Single Voltage AC-AC and AC-DC External Power Supplies. The ENERGY STAR specification and qualified product list can be found at www.energystar.gov/powersupplies.F.Power Management RequirementsThe display must have at least one mechanism enabled by default that allows the display to automatically enter Sleep or Off Mode. For instance, data or network connections must support powering down the display according to standard mechanisms, such as Display Power Management Signalling. Displays generating their own content must have a sensor or timer enabled by default to automatically engage Sleep or Off Mode.3.Energy-efficiency criteriaA.On Mode requirements1.Tier 1To qualify as ENERGY STAR, the display must not exceed the maximum On Mode power consumption (PO or PO1) as calculated from the equations below. The maximum On Mode power consumption is expressed in watts and rounded to the nearest tenth of a watt.Table 1Tier 1 On Mode power consumption requirementsDisplay Category | Maximum On ModePower Consumption (W)Diagonal Screen Size < 30 inchesScreen Resolution ≤ 1,1 MP | PO = 6*(MP) + 0,05*(A) + 3Diagonal Screen Size < 30 inchesScreen Resolution > 1,1 MP | PO = 9*(MP) + 0,05*(A) + 3Diagonal Screen Size 30 – 60 inchesAll Screen Resolutions | PO = 0,27*(A) + 8Where:MPDisplay Resolution (megapixels)AViewable Screen Area (square inches)Example: The maximum On Mode power consumption for a display with 1440 × 900 resolution, or 1296000 pixels, a 19-inch viewable diagonal screen size and a viewable screen area of 162 square inches, would be: ((9 × 1,296) + (0,05 × 162)) + 3 = 22,8 watts when rounded to the nearest tenth of a watt.Table 2Sample Tier 1 On Mode maximum power consumption requirementsDiagonalScreen Size (inches) | Resolution | Megapixels | Screen Dimensions(inches) | Screen Area(sq. in.) | Maximum On Mode Power Consumption(watts)7 | 800 × 480 | 0,384 | 5,9 × 3,5 | 21 | 6,419 | 1440 × 900 | 1,296 | 16,07 × 10,05 | 162 | 22,826 | 1920 × 1200 | 2,304 | 21,7 × 13,5 | 293 | 38,442 | 1360 × 768 | 1,044 | 36 × 20 | 720 | 202,450 | 1920 × 1080 | 2,074 | 44 × 24 | 1056 | 293,12.Tier 2To qualify as ENERGY STAR, the display must not exceed the following maximum On Mode consumption equations: TBD.3.Displays with Automatic Brightness Control (ABC)For Displays shipped with ABC features enabled by default an alternate calculation is used to calculate maximum On Mode power consumptionPO1 = (0,8 * Ph) + (0,2 * Pl)where PO1 is the average On Mode power consumption in watts, rounded to the nearest tenth of a watt, Ph is the On Mode power consumption in high ambient lighting conditions, and Pl is the On Mode power consumption in low ambient lighting conditions. The formula assumes the display will be in low ambient lighting conditions 20 % of the time.B.Sleep and Off Mode requirements1.Tiers 1 and 2To qualify as ENERGY STAR, the display must not exceed the maximum power consumption levels for Sleep and Off Modes provided in Table 3, below. Displays capable of multiple Sleep Modes (i.e. Sleep and Deep Sleep) must meet Sleep Mode requirements in all sleep modes.Example: A display test result of 3 watts in Sleep and 2 watts in Deep Sleep would not qualify because power consumption in one of the Sleep Modes exceeded the 2 watt Tier 1 limit.Table 3Sleep and Off Mode power consumption requirements for all DisplaysMode | Tier 1 | Tier 2Maximum Sleep Mode power consumption (W) | ≤ 2 | ≤ 1Maximum Off Mode power consumption (W) | ≤ 1 | ≤ 14.Test requirementsHow to use this sectionEPA and the European Commission utilise, where possible, widely accepted industry practices for measuring product performance and power consumption under typical operating conditions. The test methods in this specification are based on standards from the Video Electronics Standards Association (VESA) Display Metrology Committee and the International Electrotechnical Commission (IEC). In cases where the VESA and IEC standards were insufficient for the needs of the ENERGY STAR program, additional testing and measurement methods were developed in cooperation with industry stakeholders.To ensure a consistent means for measuring the power consumption of electronics products such that the test results may be reproduced, and that outside factors do not adversely affect the test results, the following protocol must be followed. It has four main components:
Note: Test method is located in Appendices 1 and 2. Appendix 1 describes the test procedure for displays with a viewable diagonal screen size measuring less than (<) 30 inches. Appendix 2 describes the test procedure for displays with a viewable diagonal screen size measuring from 30 to 60 inches, inclusive.Partners may elect to use an in-house or independent laboratory to provide the test results.Facility quality controlPartners are required to perform tests and certify those product models that meet the ENERGY STAR guidelines. In order to conduct testing in support of qualification for ENERGY STAR, the product must be tested in a facility that has quality control procedures for monitoring the validity of tests and calibrations. ENERGY STAR recommends conducting these tests in a facility that follows the general requirements for the competence of testing and calibration laboratories as described in the International Standard ISO/IEC 17025.Test conditions and instrumentationA.Power measurement protocolsThe average true power consumption of the display shall be measured during On Mode, Sleep Mode, and Off Mode. When performing measurements to self-certify a product model, the Unit Under Test (UUT) must initially be in the same condition (e.g. configuration and settings) as when shipped to the customer, unless adjustments need to be made pursuant to the instructions below.B.Input AC power requirementsSupply Voltage | North America/Taiwan | 115 (± 1 %) Volts AC, 60 Hz (± 1 %)Europe/Australia/New Zealand | 230 (± 1 %) Volts AC, 50 Hz (± 1 %)Japan | 100 (± 1 %) Volts AC, 50 Hz (± 1 %)/60 Hz (± 1 %)Note: For products rated for > 1,5 kW maximum power, the voltage range is ± 4 %Total Harmonic Distortion (THD) (Voltage) | < 2 % THD (< 5 % for products which are rated for > 1,5 kW maximum power)Ambient Temperature | 23 °C ± 5 °CRelative Humidity | 10 – 80 %C.Approved meterApproved meters will include the following attributesnote:The power measurement instrument shall have a resolution of:The following attributes in addition to those above are suggested:It is also desirable for instruments to be able to measure average power over any user-selected time interval (the most accurate devices perform an internal calculation to divide accumulated energy by elapsed time). As an alternative, the measurement instrument would have to be capable of integrating energy over any user-selected time interval with an energy resolution of less than or equal to 0,1 mWh and integrating time displayed with a resolution of 1 second or less.D.AccuracyMeasurements of power of 0,5 W or greater shall be made with an uncertainty of less than or equal to 2 % at the 95 % confidence level. Measurements of power of less than 0,5 W shall be made with an uncertainty of less than or equal to 0,01 W at the 95 % confidence levelnote.All measurements should be recorded in watts and rounded to the nearest tenth of a watt.E.Darkroom conditionsAll luminance testing shall be performed in darkroom conditions. The display screen illuminance measurement (E) in Off Mode must be less than or equal to 1,0 lux. Measurements should be taken perpendicular to the centre of the display screen using a Light Measuring Device (LMD) with the display in Off Mode (Reference VESA FPDM Standard 2.0, Section 301-2F).F.Light measurement protocolsWhen light measurements, such as illuminance and luminance, need to be made, an LMD shall be used with the display located in darkroom conditions. The LMD shall be used to take measurements at the centre of and perpendicular to the display screen (Reference VESA FPDM Standard 2.0, Appendix A115). The screen surface area to be measured shall cover at least 500 pixels, unless this exceeds the equivalent of a rectangular area with sides of length equal to 10 % of the visible screen height and width (in which case this latter limit applies). However, in no case may the illuminated area be smaller than the area the LMD is measuring (Reference VESA FPDM Standard 2.0, Section 301-2H).SetupA.PeripheralsNo external devices shall be connected to Universal Serial Bus (USB) hubs or ports. Any built-in speakers, TV tuners, etc. may be placed in their minimum power configuration, as adjustable by the user, to minimise power consumption not associated with the display itself.B.ModificationsDevice modifications such as circuit removal, or other actions not available to a typical user, are not permitted.C.Analogue v Digital interfacePartners are required to test their displays using the analogue interface, except in those cases where one is not provided (i.e. digital interface displays, which for the purposes of this test method are defined as having only a digital interface). For digital interface displays, please see footnote in Appendix 1 for voltage information, and follow the test method in Appendix 1 and/or 2, depending on the viewable diagonal screen size of the UUT, using a digital signal generator.D.Models capable of operating at multiple voltage/frequency combinationsPartners shall test, qualify, and document conditions applicable to each market in which their products shall be sold as ENERGY STAR qualified.Example: For a product to earn the ENERGY STAR label in both the United States and Europe, it must qualify at both 115 V/60 Hz and 230 V/50 Hz. If the product qualifies as ENERGY STAR at only one voltage/frequency combination (e.g. 115 V/60 Hz), then it may only be qualified and promoted as ENERGY STAR in those regions that support the tested voltage/frequency combination (e.g. North America and Taiwan).E.External power supplyFor displays shipped with an external power supply, the supplied EPS must be used for all testing. An alternate power supply may not be substituted.F.Colour controlsAll colour controls (hue, saturation, gamma, etc.) shall be set to factory default settings.G.Resolution and refresh rateResolution and refresh rate vary by technology, as follows:H.Warm-upUUT must be warmed up for a minimum of 20 minutes before any test measurements are taken (Reference VESA FPDM Standard 2.0, Section 301-2D or 305-3 for warm-up test).I.StabilityAll power consumption measurements shall be recorded after instrument readings are stable to within 1 % over a three-minute period (Reference IEC 4.3.1).Test methodIn performing these tests, the partner agrees to use the applicable test procedures provided in Appendices 1 and/or 2, depending on the viewable diagonal screen size of the UUT, as follows:For displays with a viewable diagonal screen size measuring less than (<) 30 inches, use Appendix 1.For displays with a viewable diagonal screen size measuring from 30 to 60 inches, use Appendix 2.DocumentationA.Submittal of qualified product data to EPA or the European Commission, as applicablePartners are required to self-certify those product models that meet the ENERGY STAR guidelines and report information to EPA through the Online Product Submittal tool, or to the European Commission, as applicable. ENERGY STAR qualifying product data, including information about new models, must be provided on an annual basis, or more frequently if desired by the partner.B.Qualifying family of productsFamilies of display models that are built on the same chassis and are identical in every respect but housing and colour may be qualified through submission of test data for a single, representative model. Likewise, models that are unchanged or that differ only in finish from those sold in a previous year may remain qualified without the submission of new test data.C.Number of units required for testingBorrowing from European Norm 50301 (Reference BSI 03-2001, BS EN 50301:2001, Methods of measurement for the power consumption of audio, video, and related equipment, Annex A), EPA and the European Commission have established a test procedure where the number of units required for test depends on the test results for the first unit:5.User interfacePartners are strongly recommended to design products in accordance with the user interface standard IEEE P1621: Standard for user interface elements in power control of electronic devices employed in office/consumer environments. The Power Management Controls project developed this standard to make power controls more consistent and intuitive across all electronic devices. For details, see http://eetd.LBL.gov/Controls.6.Effective dateThe date that partners may begin to qualify products as ENERGY STAR, under the Version 5.0 specification, will be defined as the effective date of the agreement. Any previously executed agreement on the subject of ENERGY STAR qualified displays shall be terminated on 29 October 2009 for displays with a viewable diagonal screen size under 30 inches, or on 29 January 2010 for displays with a viewable diagonal screen size from 30 to 60 inches, inclusive.A.Qualifying products under Tier 1 of the Version 5.0 specificationThe date upon which Tier 1 of the Version 5.0 specification shall go into effect is contingent upon the size of the display, and is outlined in the table below. All products, including models originally qualified under Version 4.1, with a date of manufacture on or after that date must meet the new Version 5.0 requirements in order to qualify for ENERGY STAR (including additional shipments of models originally qualified under Version 4.1). The date of manufacture is specific to each unit and is the date (e.g. month and year) of which a unit is considered to be completely assembled.Display Category | Tier 1 Effective DateDiagonal Screen Size < 30 inches | 30 October 2009Diagonal Screen Size 30 – 60 inches | 30 January 2010B.Qualifying products under Tier 2 of the Version 5.0 specificationThe second phase of this specification, Tier 2, shall take effect on 30 October 2011, and apply to products with a date of manufacture on or after 30 October 2011. For example, a unit with a date of manufacture of 30 October 2011 must meet the Tier 2 specification in order to qualify as ENERGY STAR.C.Elimination of grandfatheringEPA and the European Commission will not allow grandfathering under this Version 5.0 ENERGY STAR specification. ENERGY STAR qualification under Version 4.1 is not automatically granted for the life of the product model. Therefore, any product sold, marketed, or identified by the manufacturing partner as ENERGY STAR must meet the current specification in effect at the time of manufacture of the product.7.Future specification revisionsEPA and the European Commission reserve the right to change the specification should technological and/or market changes affect its usefulness to consumers, industry, or the environment. In keeping with current policy, revisions to the specification are arrived at through stakeholder discussions.EPA and the European Commission will periodically assess the market in terms of energy efficiency and new technologies. As always, stakeholders will have an opportunity to share their data, submit proposals, and voice any concerns. EPA and the European Commission will strive to ensure that the Tier 1 and 2 specifications recognise the most energy-efficient models in the marketplace and reward those partners who have made efforts to further improve energy efficiency.’