{"id":233270,"date":"2024-10-19T15:12:10","date_gmt":"2024-10-19T15:12:10","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-62595-22013\/"},"modified":"2024-10-25T09:41:14","modified_gmt":"2024-10-25T09:41:14","slug":"bs-en-62595-22013","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-62595-22013\/","title":{"rendered":"BS EN 62595-2:2013"},"content":{"rendered":"

This part of IEC 62595 series specifies the standard measurement conditions and measuring methods for determining electrical, optical, and electro-optical parameters of LED backlight units for liquid crystal displays.<\/p>\n

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NOTE Other backlights (Cold Cathode Fluorescent Lamps (CCFLs), External Electrode Fluorescent Lamps (EEFLs), Hot Cathode Fluorescent Lamps (HCFLs), Carbon Nano Tube (CNT), etc.) are excluded from this standard.<\/p>\n<\/blockquote>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 General measurement conditions
4.1 Standard atmospheric conditions for LED BLU
4.2 Measuring setup <\/td>\n<\/tr>\n
8<\/td>\n4.3 Warm-up time
Figures
Figure 1 \u2013 Example of measuring setup for LED BLU <\/td>\n<\/tr>\n
9<\/td>\n5 Measurement methods
5.1 Electrical measurement methods
5.1.1 Conditions
5.1.2 Current
5.1.3 Voltage
5.1.4 Power consumption
Figure 2 \u2013 Example of warm-up characteristic of BLU <\/td>\n<\/tr>\n
10<\/td>\n5.2 Optical measurement methods
5.2.1 Conditions
5.2.2 Luminance
5.2.3 Luminance uniformity
Figure 3 \u2013 Definition of zenith angle \u03b8 and azimuth angle diameter <\/td>\n<\/tr>\n
12<\/td>\n5.2.4 Spectral power distribution
5.2.5 Chromaticity
5.2.6 Colour uniformity
Figure 4 \u2013 Examples of measurement point layout <\/td>\n<\/tr>\n
13<\/td>\n5.2.7 Correlated colour temperature
5.2.8 Angular luminance uniformity
5.2.9 Angular colour uniformity
Figure 5 \u2013 Angular luminance uniformity measurement <\/td>\n<\/tr>\n
14<\/td>\n5.2.10 Measurement methods of block-wise BLU
Figure 6 \u2013 Example of test pattern (8 x 10 segments) for block-wise BLU
Figure 7 \u2013 Example of incoherent point spread function <\/td>\n<\/tr>\n
15<\/td>\nFigure 8 \u2013 Example of test pattern of incoherent point spread function
Figure 9 \u2013 Example of test pattern of crosstalk <\/td>\n<\/tr>\n
16<\/td>\nAnnex A (informative) Practical measurement methods of block-wise BLU
Figure A.1 \u2013 Measurement of average slope of incoherent point spread function <\/td>\n<\/tr>\n
17<\/td>\nFigure A.2 \u2013 Black box pattern for crosstalk measurement using LCD
Figure A.3 \u2013 Example of crosstalk measurement results using LCD <\/td>\n<\/tr>\n
18<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

LCD backlight unit – Electro-optical measurement methods of LED backlight unit<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2013<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":233272,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-233270","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/233270","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/233272"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=233270"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=233270"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=233270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}