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BEIJING, Nov. 7, 2023 /PRNewswire/ — WiMi Hologram Cloud Inc. (NASDAQ: WIMI) (“WiMi” or the “Company”), a leading global provider of augmented truth (AR) technologies for holograms, announced that it has developed a liquid crystal-on-silicon (LCoS) generation solution that will revolutionize augmented truth (AR) displays.
Liquid crystals are optically sensitive ingredients whose molecular arrangement can be altered by an electric field. Liquid crystal (LCD) presentations use liquid crystals as optical switches to modulate the degree of smooth transmission by controlling the electric field, allowing control of pixel points. With the immediate progression of semiconductor generation and embedded circuits, the generation of complementary steel oxide semiconductors (CMOS) has emerged in the semiconductor industry. CMOS has the low power consumption, maximum integration and cost-effectiveness, which makes it a generation of backplane that is very suitable for optoelectronic devices. CMOS advancements have provided a highly integrative backplane platform for LCoS progression, which has improved LCoS performance.
WiMi’s LCoS generation for AR presentations creatively combines liquid crystals with semiconductor substrates to create optically addressable liquid crystal light modulators. WiMi has developed an LCoS generation principle for AR presentations according to which liquid crystals can be used for optical addressability, which means that light can propagate. times through the liquid crystal layer, modulating the phase or polarization state each time, thus offering direction to realize high-resolution, high-performance optical valves. The increase in LCoS generation is strongly related to the desires for high-resolution fields. and holographic images. High-resolution presentations and images are a must for programs such as augmented truth, virtual truth (VR), and head-mounted presentations (HMDs).
However, LCoS generation faces several technical challenges in practice, one of the main ones being the edge box effect, which can lead to degraded functionality. The functionality of edge pixels tends to be less robust than that of middle pixels, which can degrade the quality of the demo. Therefore, solving this challenge becomes an essential prerequisite for LCoS progression. To solve the challenge of edge box effect, WiMi provides cutting-edge solutions, optimizing the pixel structure, adjusting the pretilt angle of the liquid crystal and improving the phase modulation algorithm. The strategy divides the doleading pixel into two spaces with an edge width based on an initially decided phase retention curve. Using this procedure, the pretilt angles of the inner and outer regions are optimized, thus reducing the overall phase retention error. The purpose of this optimization procedure is to achieve more accurate phase modulation, resulting in an advancement in symbol quality and demonstrating functionality. In addition, this technique allows designing pretilt angle models with opposite characteristics, offering greater flexibility for other applications.
Composition of WiMi LCoS Generation Panels for AR Displays:
Liquid crystals (LCs): Liquid crystals are the core component of LCoS, which is made up of liquid crystal molecules whose arrangement can be adjusted by an electric field. In LCoS, liquid crystals are placed between two pieces of glass or wafers.
CMOS Backplane: The CMOS backplane supplies the pixel level of the electrical box used to manipulate the liquid crystal molecules in the liquid crystal layer. Each pixel point has a corresponding electrode that is voltage through a CMOS circuit, which adjusts the alignment of the liquid crystal. molecules and adjusts the phase or state of polarization.
Orientation layers: Typically, two thin layers of polyimide (PI) orientation are located at the most sensitive part and at the back of the liquid crystal layer, which determines the direction of alignment of the liquid crystal molecules and ensures consistency in the alignment of the liquid crystals.
One of the key features of WiMi’s LCoS for AR presentations is phase modulation. When incident light passes twice through a liquid crystal layer, its phase is modulated according to the disposition tendency of the liquid crystal molecules. This phase modulation is achieved by controlling the electrodes on the CMOS backplate, where other voltages result in other arrangements of the liquid crystal molecules, thus converting the phase to the smooth. In addition to phase modulation, LCoS can also be used for polarization modulation. By adjusting the arrangement of liquid crystal molecules, LCoS can replace the polarization of incident light so that it polarizes linearly, circularly, or in other fast-polarizing states, which is very important for certain applications. In addition, the electrodes on the CMOS back panel are pixelated, which means that each pixel point can be controlled independently. This raster design allows for the creation of high-resolution photos or smooth fields across the entire LCoS panel.
To improve the performance of the demonstration, especially the marginal cash effect, the solution uses phase hold optimization. This includes splitting the pixel domain into inner and outer domains, as well as adjusting the pre-tilt angle to minimize phase retention. Errors. The solution is committed to creating small-pitch, high-resolution LCoS panels to provide sharper, brighter, and more realistic AR demonstrations.
WiMi’s LCoS generation for AR presentations is expected to deliver incredible performance, a better user experience, and a wider diversity of programs for augmented reality generation. Using liquid crystal light modulators with optical direction, LCoS can exactly modulate the phase and polarization state of light in achieving highly controllable optical effects, opening up new possibilities for the progression of AR fields such as virtual simulation, healthcare, education, and entertainment. Generation allows users to take advantage of a more realistic overlay of virtual information. This produces effects in a more realistic way. Brighter and clearer demonstration in AR. In addition, LCoS has lowered the threshold of the AR market, attracting more brands and developers and fostering continuous generation innovation and progress. The application of this generation will contribute to the popularization and innovation of the AR generation, bringing more probabilities to our lives and professional fields.
About WIMI Hologram Cloud
WIMI Hologram Cloud, Inc. (NASDAQ: WIMI) is a full-service cloud holographic technical solutions provider focusing on professional boxes, adding holographic AR automotive HUD software, 3D holographic pulse LiDAR, head-mounted lightbox holographic equipment, semiconductor holographic equipment, cloud holographic software, automotive holographic navigation, and others. Its holographic AR and technologies come with holographic AR automotive application, three-dimensional holographic pulse LiDAR technology, holographic vision semiconductor technology, holographic software development, holographic AR advertising technology, holographic AR entertainment technology, holographic ARSDK payment, interactive holographic communication and other holographic technologies. AR technologies.
Safe Harbor Declarations
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SOURCE WiMi Hologram Cloud Inc.