I will explain the controls with reference to Figures 1 through 4 below. Remainder of this note applies just to CRTs. That icon, typically alters the backlight luminance, thereby effectingĬontrol over what in a CRT would be adjusted by C ONTRAST. In an LCD, the B RIGHTNESS control, or the control with LCD displays have controls labeled B RIGHTNESS andĬontrols have different functions than the like-named controls ofĪ CRT display. However, I continue my effort to educate users and system designers. I'm sorry to report that I have abandoned that campaign When I was engaged in a campaign to give these controls meaningful and
This note was formerly called B LACK LEVEL and Once B RIGHTNESS is setĬorrectly, C ONTRAST should be set for comfortable viewing The luminance (proportional to intensity) that is reproduced forĪ full white input signal. It appliesĪ scale factor (gain) to the red, green, and blue signals. The C ONTRAST control, preferably called P ICTURE. Modernĭisplay equipment is sufficiently stable that frequent adjustment is The setting is somewhat dependent upon ambient light. Later in this document, I will explain how to set this control Reproduction on computer monitors, video monitors, and television sets. This control is the most common problem of poor quality picture Picture content displays as true black on your monitor. This control should be adjusted so that black It adds or subtracts an offset, or bias, into the red, This icon indicates the B RIGHTNESS control, more properly calledī LACK L EVEL. This document is available at If you would like to print this document, I recommend that you Permission is granted for noncommercial redistribution of this document in its entirety, It applies to CRT displays.Īt, I am working to update it to reflect modern displays, particularly LCDs.]] Of confusion about how to set up a monitor for good reproduction. Unfortunately, the labels B RIGHTNESS and C ONTRASTĪre misleading with respect to their functions: The control calledī RIGHTNESS mainly affects reproduced contrast,Īnd the control called C ONTRAST ideally affects onlyīrightness! The misleading labels have led to a great deal This note applies toĬomputer monitors, studio video monitors, and television receivers. On picture reproduction, and I explain how to set them.
I explain the effect that these controls have This note introduces the two main user adjustments of a video monitor,ī RIGHTNESS and C ONTRAST. "Brightness" and "Contrast" controls "Brightness" and "Contrast" controls
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