Klasifikacija LED pozadinskog osvjetljenja kako podijeliti
Apr 06, 2022
When it comes to the division of LED backlighting classification, it is important to first understand what LED backlighting means. LED backlighting refers to the use of LEDs (Light Emitting Diodes) as the backlighting source for LCDs. Compared with the traditional CCFL (cold cathode tube) backlight, LED has low power consumption, low heat generation, high brightness, long life, etc.
Currently, this LED backlight classification can be divided into RGB-LED and white LED. the former utilizes the capability of dynamic zoning backlight technology and the excellent light source of tri-color RGB-LED, which provides a qualitative leap in color and contrast compared with traditional backlight. As a result, it is usually suitable for high quality TV products and generally costs more than 3W. The latter is a relatively common LED backlight source, also widely used in notebook computers and LCD monitors. White LED backlighting usually uses light ingested from the edge of the display, which is different from RGB-LED and traditional backlighting with direct backlighting.
1, prema položaju upada LED pozadinskog osvjetljenja: moduli LED pozadinskog osvjetljenja podijeljeni su u dvije vrste prema položaju upada izvora svjetlosti: ravno-dolje i bočno-svjetlo, koje se može grubo podijeliti u ravno-dolje RGB-LED, ravno-dolje bijelu LED i bočnu-svjetlo bijelu LED itd.
2, razlika između RGB-LED-a i bijelog LED-a: RGB-LED raspon boja je nešto bolji, a nedostatak je veći trošak. Bijeli LED izvor svjetla, iako nešto niži od RGB-LED-a u rasponu boja, ima relativno visok omjer kontrasta i tehničku cijenu koju RGB-LED ne može usporediti.
3, razlika između ravnog dolje i bočnog LED pozadinskog osvjetljenja: LED bočni izvor svjetla emitira svjetlost s obje strane tijela i projicira svjetlost na ploču kroz ugrađeni-vodič svjetlosti visoke propusnosti. Ograničenje debljine LCD-a je debljina fluorescentnih svjetiljki. Bočni izvor svjetla nalazi se na poziciji projekcije s obje strane, tako da ne zauzima prostor debljine TV-a.
Compared with the side light source, the direct down backlight LED can dynamically control the backlight, making it possible to display a high-quality image effect with natural contrast between light and dark by adjusting only part of the light illumination in the desired backlight area (black or dark part of the screen) when representing some images of dark scenes.
