display

Image-forming element

Record the controlled visual elements and whether they emit, modulate or reflect light.

1. Which electronically controlled elements form the visible information: pixels, segments, fixed symbols or another arrangement? definition
2. Does visibility require emitted light, a backlight, a frontlight or ambient illumination? boundary

Display subsystem ownership

Identify which panel, driver, controller, illumination and enclosure elements belong to the display under consideration.

1. Which image-forming and control components are included, and which must be supplied by the host? boundary
2. Which functions of the enclosing product, such as computing, tuning or touch sensing, require neighbouring models? boundary

Native detail and mapping

Separate native visual capacity from input dimensions, scaling, cropping and orientation.

1. What are the active dimensions and native pixel, segment or symbol arrangement? measurement
2. Does the selected mode scale, crop, rotate or otherwise transform content in a way that hides required detail? measurement

Task-relevant visibility

Assess contrast, colour distinctions, reflections and uniformity against the intended viewing task.

1. At the intended distance, angle and ambient illuminance, can the smallest required text or symbol be distinguished? measurement
2. Under what test pattern and operating mode were luminance, contrast and colour performance established? provenance
3. Which available adjustments improve required visibility without clipping essential tonal or colour distinctions? action

Update response and latency

Record applicable refresh or update behaviour without treating response time and latency as interchangeable.

1. What refresh or update modes are supported, including partial updates or variable refresh where applicable? definition
2. How long does a relevant input change take to become visibly settled, and what content, temperature and mode were used? measurement

Visible image versus live state

Distinguish intentional image persistence, frozen output and residual image artefacts from current information.

1. What remains visible after power loss, source disconnection or controller failure? measurement
2. How can an agent verify that the visible information was successfully updated rather than retained from an earlier state? action

Supported input path

Record interface requirements, accepted modes and configuration dependencies at the actual display boundary.

1. Which interfaces, signal timings, encodings or panel-drive requirements are documented for this display? provenance
2. Which source, cable, adapter and controller combination supports the required output mode? action

Controlled operating mode

Identify available controls, supply requirements and observable transitions between operating states.

1. Which controls change brightness, image processing, input selection or power state, and how is successful application verified? action
2. What supply and power demand apply during active display, image updates and standby under specified settings? measurement

Permitted display installation

Record supported mounting, orientation, ventilation and environmental conditions.

1. Which mounting points, loads, orientations and ventilation clearances are permitted by the relevant documentation? provenance
2. Do temperature, moisture, dust and ambient-light conditions at the intended location fall within documented operating limits? measurement

Construction-specific safety

Identify applicable electrical, thermal, optical, breakage and service hazards without assigning them universally to every display.

1. Which hazards, protective features and service restrictions are documented for the display's construction? provenance
2. Which standards, issuing bodies, editions and conformity records apply to the intended product category and jurisdiction? provenance

Defect location and consequence

Record fault appearance, persistence and affected area together with the information compromised.

1. Which defects appear on controlled test patterns, and do they persist with a known-good source or built-in self-test where available? measurement
2. Do affected pixels, segments or regions obscure required symbols, warnings or distinctions enough to make continued use unsuitable? action

Technology-appropriate intervention

Select interventions using the display's surface materials, serviceable components and documented degradation behaviour.

1. Which cleaning methods, replacement parts and maintenance procedures are approved for the panel, coatings and illumination system? provenance
2. What post-service visual and functional checks establish that the display again meets the intended task requirements? action

Check these first

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these check these first hold for the sense of display this model covers, and on what evidence? provenance

Kinds and varieties

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these kinds and varieties hold for the sense of display this model covers, and on what evidence? provenance

Identifiers and schemes

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these identifiers and schemes hold for the sense of display this model covers, and on what evidence? provenance

Standards and regulation

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these standards and regulation hold for the sense of display this model covers, and on what evidence? provenance

Real-world use

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these real-world use hold for the sense of display this model covers, and on what evidence? provenance

Typical measurements

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these typical measurements hold for the sense of display this model covers, and on what evidence? provenance

Failure modes and hazards

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these failure modes and hazards hold for the sense of display this model covers, and on what evidence? provenance

Regional variation

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these regional variation hold for the sense of display this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Recalled without web access and unsourced; every item is a lead to verify.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of display this model covers, and on what evidence? provenance