US 12,135,476 B2
Medical observation system and display device
Kenji Hata, Tokyo (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/623,273
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Jul. 17, 2020, PCT No. PCT/JP2020/027790
§ 371(c)(1), (2) Date Dec. 28, 2021,
PCT Pub. No. WO2021/020159, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 2019-140678 (JP), filed on Jul. 31, 2019.
Prior Publication US 2022/0357616 A1, Nov. 10, 2022
Int. Cl. G02F 1/1335 (2006.01); A61B 1/04 (2006.01); G02B 1/118 (2015.01); G02B 5/02 (2006.01); G02B 5/30 (2006.01)
CPC G02F 1/133502 (2013.01) [A61B 1/04 (2013.01); G02B 1/118 (2013.01); G02B 5/0236 (2013.01); G02B 5/30 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A medical observation system comprising:
an observation device that observes a living body of a medical treatment target;
a signal processing circuit that generates a biological image related to the living body by processing an output signal of the observation device;
a display that displays the biological image; and
a transparent protective plate disposed on a front surface side of the display,
wherein
a first uneven structure having unevenness with a pitch and a height smaller than a wavelength of visible light is formed on any one or more of a front surface side of the protective plate, a back surface side of the protective plate, and the front surface side of the display,
a second uneven structure having unevenness with a pitch larger than the wavelength of the visible light and smaller than a pixel pitch of the display having an anti-glare (AG) function is formed on any one or more of the front surface side of the protective plate, the back surface side of the protective plate, and the front surface side of the display, wherein at least one of the first uneven structure and the second uneven structure is between the display and the transparent protective plate and the second uneven structure is between the display and the first uneven structure,
an air gap is formed between the display and the protective plate, and
a film in which the first uneven structure is formed on the second uneven structure includes a hydrophilic or hydrophobic material, and is located in the air gap and bonded to the front surface side of the display with an adhesive containing a diffusion material having a size smaller than the pixel pitch of the display and having an AG structure.