Display Refresh Rate Required Calculator
Conditional refresh frequencyω/angular step constraint, independent quality budget not viewer-specific comfort threshold or recommend safeHz.
Description
A refresh budget can limit angular movement between display updates.
A refresh budget can limit angular movement between display updates.1
Dividing an observed angular speed by a chosen per-refresh allowance gives the conditional required frequency. The calculation and input requirements are explained below.
When to use Display Refresh Rate Required Calculator
Enter nonnegative maximum angular speed in degrees per second and positive permitted angular movement per refresh in degrees.
How to use Display Refresh Rate Required Calculator and how it works
- Prepare the measurements or independently established model inputs described below, with matching units and observation scope.
- Enter the required fields and run Display Refresh Rate Required Calculator.
- Read the result fields using the formula, output units, signs and ordering explained below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualMaximumAngularSpeedDegreesPerSecond | Actual Maximum Angular Speed Degrees Per Second. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
| callerMaximumAngularMovementPerRefreshDegrees | Caller Maximum Angular Movement Per Refresh Degrees. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
Enter nonnegative maximum angular speed in degrees per second and positive permitted angular movement per refresh in degrees. Divide speed by allowance to return conditional refresh Hz. Zero speed returns zero; this is a supplied motion budget rather than a perceptual comfort threshold.
requiredHz=angularSpeedDegPerSec/allowedMovementDeg Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Numeric result under the formula and output units explained above. | number |
{
"input": {
"actualMaximumAngularSpeedDegreesPerSecond": 50,
"callerMaximumAngularMovementPerRefreshDegrees": 0.5
},
"output": {
"result": {
"value": 100
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Low Persistence Duty Cycle Calculator for a complementary operation: Low-persistence displays emit light during part of each refresh period.
Use Display Persistence ms Calculator for a complementary operation: Display persistence is the duration of light emission in a refresh period.
References
-
Display Refresh Rate Required Calculator — tool.io
Similar or alternative tools
- Low Persistence Duty Cycle Calculator
Low-persistence displays emit light during part of each refresh period.
- Display Persistence ms Calculator
Display persistence is the duration of light emission in a refresh period.