DISPLAY BODY AND SHEET FOR OPTICAL SEMICONDUCTOR DEVICE ENCAPSULATION

• Main Authors: NAGATSUKA NAOKI, TANAKA SHUMPEI, NAKANO TAKESHI, ASAI RYOKO, UENO TAIKI
• Format: Patent
• Language: English; Korean
• Published: 05.10.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

Provided is a display body with excellent anti-reflection properties on a substrate surface and also high brightness. According to the present invention, a display body (1) comprises: a substrate (2); a plurality of optical semiconductor elements (3a to 3c) arranged on the substrate (2); and a sealing resin layer (4) which seals the plurality of optical semiconductor elements (3a to 3c). The sealing resin layer (4) includes a colored layer (42) and a non-colored layer (43). A perpendicular line to a surface of the substrate (2) passing through the center of gravity G_A of the optical semiconductor element (3a) is defined as a perpendicular line P_A, and a perpendicular line to a surface of the substrate (2) passing through the midpoint C of the center of gravity G_A of the optical semiconductor element (3a) and the center of gravity G_B of the optical semiconductor element (3b) adjacent to the optical semiconductor element (3a) within the same pixel (3) is defined as a perpendicular line P_C. Here, a total thickness H_A of the colored layer at the perpendicular line P_A, a total thickness I_A of the non-colored layer at the perpendicular line P_A, a total thickness H_C of the colored layer at the perpendicular line P_C, and a total thickness I_C of the non-colored layer at the perpendicular line P_C satisfy following formula (1), H_A / H_C < I_A / I_C (1). 기판 표면의 반사 방지성이 우수하고, 또한 휘도가 높은 표시체를 제공한다. 표시체(1)는, 기판(2)과, 기판(2) 상에 배치된 복수의 광반도체 소자(3a 내지 3c)와, 복수의 광반도체 소자(3a 내지 3c)를 밀봉하는 밀봉 수지층(4)을 구비한다. 밀봉 수지층(4)은, 착색층(42) 및 비착색층(43)을 포함하고, 광반도체 소자(3a)의 무게 중심 GA를 지나는 기판(2) 표면에 대한 수선을 수선 PA, 광반도체 소자(3a)의 무게 중심 GA와, 광반도체 소자(3a)와 동일 픽셀(3) 내에 있어서 인접하는 광반도체 소자(3b)의 무게 중심 GB의 중점 C를 지나는 기판(2) 표면에 대한 수선을 수선 PC로 했을 때, 수선 PA에 있어서의 착색층의 총 두께 HA, 수선 PA에 있어서의 비착색층의 총 두께 IA, 및, 수선 PC에 있어서의 착색층의 총 두께 HC 및 수선 PC에 있어서의 비착색층의 총 두께 IC는, 하기 식 (1)을 충족한다. HA/HC<IA/IC (1)