Summary of Stakeholder Comments in Response to the Final Draft Version 6.0 ENERGY STAR Displays Specification (Distributed June 14, 2012)
Topic No.

TopicComment Summary1ABC - Adders

The Eligibility Criteria includes an Equation 5 which determines a 10% On Mode Power Allowancefor products with ABC enabled by default. In order to qualify for this power allowance, themeasured On Mode power reduction must be at least 20 percent, and the current benefit for ABC
enabled products of providing an additional 10% On Mode power allowance does not account forgreater potential savings generated by the ABC feature in display products.

2Definitions - ABC

The definition of On Mode Power for Products with ABC enabled by default does not seem to be
fully-clarified yet. Could we understand that Pon = 0.2 x P10 + 0.8 x P300 (shown in the draft 3)?

3

In the future, EPA will continue to analyze the prevalence of ABC in display products andseek additional data to quantify the potential energy savings when ABC is enabled bydefault.
At this time, EPA has adopted a simple pass/fail test to qualify using ABC and todetermine if any savings come from the use of ABC, rather than adopt weightings ofpower consumption at specified room illumination points. EPA will continue to evaluate
the effectiveness of this approach under Version 6.0 and will consider any necessary
modifications for a future revision.

The stakeholder has concerns about the draft 3 requirement that all three features/functionalities
apply in order for a display to be eligible for the Enhanced Performance Display classification, andrecommends that only two of the three characteristics be required for a display to be eligible for theEPA received feedback from stakeholders in its initial exploration of how viewing angle isEnhanced Performance Display adder.
measured that it is feasible to measure contrast ratio at an 85 degree angle.
CR > 60:1 at a 85-degree horizontal viewing angle: existing test equipment is not accurate at these
Based on discussions with stakeholders and market analysis, EPA believes that a display
wide viewing angles.
must meet the three criteria, including that of resolution of 2.3 megapixels or greater, forResolution > 2.3MPix: This limits monitors to hi-res 30”, 27” and 16*10 24” (1920*1200 resolution); an enhanced performance display to be accurately distinguished from a conventional
computer monitor.
with 16*10 gradually disappearing, the extra allowance will be limited to the 2 Performancemonitors the stakeholder has; lower the figure to 2.05MPix (full HD resolution), and add a few other
EPA is currently addressing additional features and functionality across all types ofcriteria.
displays, such as network connectivity, through additional power allowances in theVersion 6.0 specification, as combinations of such features may not be limited toEnhanced Performance Displays should not just be about better panel specs, which do notnecessarily contribute to higher power. A higher power allowance for displays with better features, enhanced performance displays. EPA will continue to monitor the displays market toDefinitions - Enhanced like wireless, Ethernet, built-in processors, or powered USB ports, is needed. Maybe the allowance understand the extent to which products with such features are distinguishable fromconventional products.
Performance Displays should be for “full featured monitors,” rather than “enhanced performance."
Pixel density limit of 5,000 pixels per square inch for signage displays could disqualify future
products. There is industry interest in 4K standards at both 3,840 x 2,160 (QFHD) and 4,096 x
2,160 resolutions. At the recent NAB tradeshow, there were numerous cameras, displays, andprojectors shown that support these resolutions. Today, 4K has a significant installation base in theUS movie theater market. But even without the jump to 4K, there are common resolutions ofWQHD, WQXGA, QUXGA that could lead to efficient products that would not be able to meet
ENERGY STAR qualifications, simply due to superior resolution.
The stakeholder recommends that the 5,000 pixel limit for signage displays be limited to thosegreater than or equal to 12 inches or less than 30 inches, and that signage displays greater than orequal to 30 inches should be allowed greater pixel density.

4Response
When developing the proposed approach to incentivizing ABC, EPA considered various
power reduction requirements and the corresponding adder values, reaching the 20%
value based on existing data. Therefore, EPA proposes to keep the 20% power reduction
requirement.

Definitions - PixelDensity

EPA is interested in the emergence of signage displays with higher resolutions and will
Additionally, signage displays that have sufficiently wide viewing angles, high native resolution, and evaluate how to address them in a future revision to the specification, once morewide color gamut should also be categorized as Enhanced-Performance Displays and be allowed information on these products, including their features, functionality and energy
the Pep adder.
performance, becomes available.

567

Effective Date Extension

Due to delays in getting the Ver. 6.0 Display program requirements finalized, we request that EPA EPA shares its partners’ desire for a smooth transition from one ENERGY STAR
continue the convention of providing manufacturers with at least nine months lead time from thespecification version to the next, such that ENERGY STAR labeled products meet thedate the spec. is finalized. If the spec. is finalized and published in August 2012, this suggests that latest requirements in effect upon their date of manufacture and that partners have time tothe Ver. 6.0 requirements should not become effective until May 2013. If July 2012, then April 2013 transition their collateral material. As such, the specification will take effect in May 2013,at earliest.
nine months following the the release of the final specification.
EPA is interested in the emergence of signage displays with higher resolutions and will
evaluate how to address them in a future revision to the specification, once more
information on these products, including their features, functionality and energy
performance, becomes available.

EPA is interested in learning more about the power consumption of displays with whiteboard functionality that meet the definition of displays and can be tested using theEnhanced Performance EPA should allow signage displays to qualify as Enhanced-Performance Displays. EPA should also Displays test method. Once EPA has more information on such products, EPA intends toprovide an allowance for white board functionality in the next version.
explore how to address them in a future version of the specification.
Displays - Signage
The topic of power control user interfaces arose in the late 1990s in ENERGY STARdiscussions and in related research. Research was conducted by LBNL in 2000-2002 on
this issue (for more information, see:Has the IEEE P1621 standard been finalized? We are not familiar with the IEEE P1621 standard. http://energy.lbl.gov/ea/controls/publications/pubsindex.html). In 2003 and 2004, IEEEWe are reluctant to support or accept requirements being included in the ENERGY STAR
conducted a standards process to create IEEE 1621 with the participation of ENERGYspecifications if the standard is not finalized.
STAR and many partner companies. The standard won final IEEE approval in 2004 andQuestions / Input:
was reaffirmed in 2009. ENERGY STAR references IEEE 1621 in several specifications,- Has anyone reviewed the IEEE P1621 standard, and do we have a set of rationale for notalways as encouraged but voluntary. It is also referenced by other specifications andadopting it?
standards.
- Checked the web a bit; seems to this still be in “draft” stage, since 2003 or so…
- But for example, we do not follow the LED power button requirement:
The premise of 1621 is that if individual elements of the power control user interface are
Non-Energy
For power indicators use Green for on, Amber for sleep, and show no color when the device is off. standard, then people will understand the power state and controls for it of electronicRequirements - User Red should be reserved for warnings, alarms, or errors. Use flashing only for transitions or nondevices they interact with in any context. This can improve usability and lead to more use
power meanings.
of power-saving modes.
Interface
It is possible to add 0.5W to the “sleep mode” maximum, if a USB 2.0 port (or 0.7 W on a USB 3.0port) is connected to the PC for sleep mode test. But it is not possible to take the extra power if theUSB port is just available, and not in use for example the standard USB ports provided for possible
connection to a kbd or mouse or disk-on-key.
For USB, the ports may be required to be awake to support waking-up a PC upon a kbd key-strokeor mouse movement, either in “Sleep” or in “OFF” modes… but these should consume minimal
power as these operations are not exercised during testing. During testing the USB ports remain unplugged.

89Off Mode - Adders

If I am mistaken in the interpretation of the requirement, then we would need the same increase inallowance for the “OFF” limit.

The “Electronic Labeling Option” seems to have been changed from past requirements. ThePartnership Agreement requirement of minimum area size means different physical OSD sizes, so we cannot have the- Electronic Labeling same pixel count for all monitors anymore and this is problematic from an implementation
standpoint. Please confirm no changes will be required for the ver. 6.0 Display spec.
Option
We understand that EPA has limited information about the power consumption of larger screen
sizes, but this should not disqualify all displays 61 inches and above. New specifications should
anticipate, rather than lag, the market.

10

Scope - Excluded
ProductsLarger screens typically require more, rather than less, power than smaller screens, which is seenin practice within most any manufacturer’s multi-sized product family groups. This stakeholder
recommends that EPA add a power cap at the point at which EPA has limited additional data.

If a device is able to wake, then the corresponding mode should be classified as Sleep
Mode, rather than Off Mode. It is possible for a device to have multiple Sleep Modes.
The requirement for the Partner Commitment under Version 6.0 is the same as in theV5.1 specification, and does not require any particular pixel count (or density), but instead
sets a minimum pixel count. The requirement to "be at least 10% of the screen by area…
and… legible," does not require adjustments to account for higher resolution.

EPA appreciates the stakeholder feedback on applying a power cap instead of a size cap.
Given the lack of data received on which to base proposed power limits for products
larger than 61", EPA proposes to keep the 61" size cap for Version 6.0. However, EPA willrevisit the inclusion of larger displays in a future version once it has more data.

11The stakeholder is encouraged that EPA will consider the additional power used for touch screen
Scope - Touch Screens displays and will be pleased to provide the related information to EPA.
The Standby Wireless allowance specifies “Wi-Fi” as an “Included Type”. Some wirelessimplementation doesn’t specifically utilize Wi-Fi, but the purpose is the same—wirelessconnectivity.Examples are UWB and Widi. Specifying only “Wi-Fi” in the “Included Types” will
prevent displays with UWB or Widi from qualifying even though their functionalities are similar.

12Sleep Mode - Adders

13Sleep Mode - Adders

14Sleep Mode - Adders

15

Sleep Mode Occupancy Sensor

16

Sleep Mode - PowerManagement

Kindly include other wireless technologies, UWB and Widi, in the “Included Types,” to provide
Displays with these technologies even playing field.
The stakeholder recommends that EPA provide examples on how to determine the “Value of theLimits That Apply” (for at least the Display On Mode and Sleep Mode), and how to record the test
results and compare them with the specification limits “Value of the Limits That Apply,” todetermine compliance.
In general, when using USB 2.x, energy consumption is always up to 0.8~1.0W even the monitor
entering into Sleep mode. Therefore, it would be impossible for compliance that the spec only add
0.5W for this extra connection.

EPA appreciates the stakeholder feedback indicating a willingness to provide moreinformation. EPA continues to be interested in the power associated with touch screen
functionality. Once EPA has more information, EPA anticipates addressing displays withtouch screen functionality in a future version.

Currently, EPA does not have enough information on such types of wireless connectivity
to determine their impacts on power consumption. EPA will consider their impacts in afuture revision should data become available. Products with these features are, however,still within the scope of products in this specification and are thus eligible to be ENERGYSTAR qualified if they meet the power limits.
EPA has provided examples of how to determine the Value of the Limits that Apply in theFinal Version 6.0 specification.

EPA based the 0.5 W allowance for using USB 2.x on available data, and therefore
retains it in the Final Version 6.0 specification.
During the specification revision process, EPA received data and feedback frommanufacturers regarding the additional power consumption that could best be attributed tothe occupancy sensor in a display. EPA will continue to monitor the prevalence ofWe would like to confirm the reason and the background of 0.5W (Table 4) for occupancy sensor in occupancy sensors in new products, the associated power consumption, and any potential
Sleep Mode. For example, could you tell us more details about comments from stakeholders?
power savings due to this feature.
According to stakeholder feedback on the power management behavior of monitors whenWith respect to the new requirements for Displays to automatically enter Sleep Mode when
they are disconnected from a computer without being turned off, most monitors on thedisconnected from the host PC (in addition to being capable of being power managed by the hostmarket today enter Sleep Mode after the connection to a host is discontinued. As such,PC), this is appropriate for displays with scalers, but not for displays without scalers, such as those EPA proposes to require this power management feature for all ENERGY STAR qualified
with direct-drive or USB, since the power management functions reside on the scaler.
computer monitors.
The stakeholder suggests if the add up power consumption of sleep mode for USB 2.x could bereconsidered.