4results about How to "Large light angle" patented technology

The invention provides a display substrate and a display device, and belongs to the technical field of display. The display substrate comprises a substrate body, a plurality of light emitting units located on the substrate body and arranged in an array, and a driving chip located on the substrate body. The light-emitting unit comprises at least one light-emitting chip, and the driving chip is used for being electrically connected with the light-emitting chip. Each driving chip and the light-emitting chip closest to the driving chip meet the condition that L / D is larger than or equal to tan (alpha / 2). L is the distance between the driving chip and the light-emitting chip closest to the driving chip, D is the distance between the face, away from the substrate, of the driving chip and the face, close to the substrate, of the light-emitting layer of the light-emitting chip closest to the driving chip, and alpha is the light-emitting angle of the light-emitting chip closest to the driving chip. It can be guaranteed that the light-emitting chip has a large light emitting angle, and therefore it is guaranteed that the display substrate has a large visual angle.

The utility model discloses a track lamp with multidirectional steering structure, include: fixed base, its inner wall fixedly connected with annular seat, steering connecting piece, install inside annular seat, and steering connecting piece extends to the outside of fixed base, lamp stand, install on steering connecting piece, be used for to track lamp rotation angle adjustment, improve the flexibility of light irradiation, the utility model discloses through the design of steering connecting piece, compared with the track lamp of single adjustment mode in market, through steering connecting piece can 180 degree swing adjustment and 90 degree overturn to lamp stand, through steering connecting piece design brings double adjustment degree of freedom, 180 degree swing and 90 degree overturn's combination, expands the illumination angle, thoroughly solved the traditional product irradiation angle loss, the problem of unable accurate alignment, improved the flexibility of light irradiation, can satisfy the illumination demand under different scenes.

This invention discloses a Mini LED backlight and its backlight module, comprising a circuit board, several chips, and an optical layer. The chips and optical layer are fixed above the circuit board, with the optical layer covering the chips. The chips and optical layer constitute independent light-emitting units. The optical layer includes a first optical layer…annth optical layer stacked sequentially from the inside out, all of which are fixedly connected to the circuit board. Each of the first…annth optical layer contains filling particles. The angle between the first curved segment and the circuit board is θ1; the angle between the second curved segment and the circuit board is θ2; the angle between the external tangent of the third starting point of the third curved segment and the circuit board is θ3. The relationship between angles θ1, θ2, and θ3 is: θ3 > θ2 > θ1. In this invention's Mini LED backlight and its backlight module, increasing the light emission angle provides the advantages of preventing dark stripes and ensuring uniform light color.