Comparison of readability between liquid crystal displays and cathode-ray tubes.
Flat-panel displays, especially liquid crystal displays (LCDs), are almost universally used today. Do LCDs assure better readability than cathode-ray tubes (CRTs)? Two experiments were carried out to determine which type of display is better using a newly developed device. Four types of displays were tested; negative and positive CRTs, and LCDs with and without backlighting. Variables were the type of display, age, and gender. At first, analyses of readability using eye movements were conducted. Middle-aged subjects showed slower reading speed than young subjects. Then, experiments of pupillo-accommodative functions were carried out. Non-backlit LCDs reduced focusing speed among young subjects and reading performance in middle-aged subjects. Since middle-aged workers have more difficulties than young workers, they should have their vision properly corrected for VDT viewing, more appropriate displays and a more comfortable illuminance environment than young workers.
Department of Public Health, Nagoya University School of Medicine, Japan.
M
M
Miyao
S
S
Ishihara
M
M
Furuta
T
T
Kondo
H
H
Sakakibara
M
M
Kashiwamata
S
S
Yamada
D000293:Adolescent; D000328:Adult; D003626:Data Display / Q000592:standards; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011932:Reading