US 12,322,359 B2
Signal processing device and image display apparatus including the same capable of increasing clarity of OSD when mixing with image
Changhyun Kim, Seoul (KR); Jeonghyu Yang, Seoul (KR); Jungeun Lim, Seoul (KR); Junseong Kim, Seoul (KR); and Sunguk Lim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/782,854
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Dec. 6, 2019, PCT No. PCT/KR2019/017179
§ 371(c)(1), (2) Date Jun. 6, 2022,
PCT Pub. No. WO2021/112306, PCT Pub. Date Jun. 10, 2021.
Prior Publication US 2023/0005452 A1, Jan. 5, 2023
Int. Cl. G09G 5/14 (2006.01); G06T 3/40 (2006.01)
CPC G09G 5/14 (2013.01) [G06T 3/40 (2013.01); G09G 2340/0407 (2013.01); G09G 2340/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A signal processing device comprising:
an on screen display (OSD) processor configured to upscale an OSD having a first resolution to a second resolution greater than the first resolution; and
a synthesizer configured to synthesize at least a part of an image having the second resolution and the upscaled OSD having the second resolution,
wherein the OSD processor outputs the upscaled OSD having the second resolution, in which luminance and transparency are adjusted, and
wherein the OSD processor controls the luminance and the transparency of the upscaled OSD having the second resolution to be greater than the luminance and the transparency of the OSD having the first resolution after upscaling the OSD having the first resolution to the second resolution.