US 12,298,619 B2
Liquid crystal display element, display device, electronic device, drive substrate, and method for manufacturing drive substrate
Takashi Sakairi, Kanagawa (JP); and Tomoaki Honda, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP); and SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 18/251,581
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP); and SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Nov. 2, 2021, PCT No. PCT/JP2021/040327
§ 371(c)(1), (2) Date Dec. 4, 2023,
PCT Pub. No. WO2022/102466, PCT Pub. Date May 19, 2022.
Claims priority of application No. 2020-189223 (JP), filed on Nov. 13, 2020.
Prior Publication US 2024/0118571 A1, Apr. 11, 2024
Int. Cl. G02F 1/1335 (2006.01)
CPC G02F 1/133553 (2013.01) [G02F 1/133507 (2021.01)] 14 Claims
OG exemplary drawing
 
1. A liquid crystal display element, comprising:
a drive substrate comprising a plurality of pixel electrodes having light-reflective properties, wherein the plurality of pixel electrodes is in a matrix;
a counter substrate opposite to the drive substrate; and
a liquid crystal material layer sandwiched between the drive substrate and the counter substrate, wherein
the plurality of pixel electrodes is on a display surface side of the drive substrate,
the plurality of pixel electrodes is separated from each other with a slit portion interposed therebetween,
an entire surface that includes surfaces on the plurality of pixel electrodes is covered with a first dielectric film,
the first dielectric film includes:
a lower layer portion on a side of the plurality of pixel electrodes; and
an upper layer portion laminated on the lower layer portion, wherein
the upper layer portion includes a first material that has a higher refractive index than that of a second material of the lower layer portion,
a second dielectric film is in the slit portion, and
the second dielectric film has a hollow portion that extends along the slit portion.