Topic   1     

Image   clarity and HDR effect optimization in mobile device

Background

Terminal device users have an   ultimate visual experience demand to "recreate the real world and   restore the original author's intent" . The display system needs to   enhance the visual experience from dimensions such as clarity, realism, and   smoothness.

Clarity: Focuses on the spatial   dimension, requiring high-quality clarity enhancement/zoom algorithms to   improve the clarity of images/videos/graphics;

Realism: Focuses on the frequency   domain dimension, where the amplitude corresponds to brightness/dynamic   range/contrast, and frequency (or wavelength) corresponds to color   gamut/tone/saturation. The core target of realism is HDR and wide color   gamut.

Smoothness: Focuses on the   temporal dimension, pursuing the match between display frame rate and the   motion speed of the screen content.

At the same time, the clarity and   realism experience are greatly influenced by the display/viewing environment,   and the adaptive management of the environment and content is also an   important topic.

Task

A.Please select one of the following tasks:

1)   Clarity Enhancement: Reference range: FSR or other   edge/texture adaptive scaling algorithms, lightweight AISR algorithms   suitable for device-side deployment, etc. Input: Low-resolution or   low-bitrate images. Output: 4 types of images (original resolution image, 2x   enlarged image, screen size adaptive scaling image for vertical display,   screen size adaptive scaling image for horizontal display). The latter two   must ensure an aspect ratio of 1:1, filling the screen horizontally or   vertically.

2)   HDR Image Editing: Referring to the editing   functions of top applications like WeChat, Weibo, Tiktok,   Rednote,   Bilibili,   etc., for SDR images, the editing of HDR images should be realized: support   at least 2 editing functions (e.g., adding text, adding one color adjustment   filter), and ensure HDR effects are not lost, and added SDR elements (such as   white text) are not overly bright. Input and output: Comply with HDR Vivid or   ISO HDR image standards.

B.   For any selected task, the following conditions must be met:

1)   Model computing power is less than 30GFlOPS

2)   Objective performance indicators are superior to SOTA and algorithm   performance (average   single-frame processing latency on the HarmonyOS   Developer Platform) meets   20HZ   or objective performance indicators are on   par or slightly worse than SOTA and algorithm performance   (average single-frame processing latency on the HarmonyOS   Developer Platform) meets   30HZ

Figure

Evaluation

Notice

Original ideas are encouraged; if   industry-recognized solutions are involved, please   explain the improvement points and limitations.

Development based on the HarmonyOS NEXT developer platform are   encouraged.

Topic 2

Capacitance   characteristics of OLED devices

Background

The   capacitance characteristics of OLED devices are one of the factors affecting   the display effect of OLED screens; OLED devices have a multi-layer   structure, and the transmission characteristics, interface injection   characteristics, film layer stability, and driving frequency of each layer   will all affect the device capacitance and the stability of long-term use.So   the capacitance characteristics of OLED devices require a comprehensive   research.

Task

The   attached figures show the common structures of single OLED and tandem OLED   devices, as well as the I-V and C-V characteristic diagrams of the devices.   Please select an OLED device and analyze its capacitance characteristics by   structural design, simulation, and other methods. Provide the factors   affecting capacitance and methods for adjustment.

Figure

Evaluation

Preliminary Round: Provide a   capacitance analysis model for OLED devices by theoretical analysis,   simulation, etc., and output relevant technical documents, covering the   following content:

1.   Background of the technical research; 2. Theoretical model of OLED device   capacitance and analysis of influencing factors.

Final Round: Provide simulated   verification results of OLED capacitance characteristics, covering the   following content:

1.   Simulate and analyze the capacitance of OLED devices, providing key   influencing factors affecting capacitance and methods to adjust capacitance   value.

2.   Analyze the impact of constant current stress (reference 1/5/10 mA/cm2) on the physical parameters of   OLED devices, and identify physical parameters causing capacitance changes   >10% through simulation analysis.

Notice

OpenTopic

No specific topic is required, as   long as it aligns with the following directions: display effect enhancement,   display health research, OLED-related drive efficiency improvement, MicroLED,   3D display, display anti-peeping technology, advanced display materials, etc.   (such as display algorithm design, OCA research, polarization material   design, optical film layer/optical design, functional materials, polymer   materials, etc.)

The competition is open to   doctoral, master’s, and undergraduate students from universities or research   institutes. Participants submit their research results, which will be   evaluated by a panel of competition experts. Students who have participated   in previous competitions are also welcomed to register to participate.

Requirement

ØPublished   research results & unpublished research proposals & innovative ideas   can be submitted.  

ØStudents   are required to participate in individual, and the registrant must be the   main contributor to the submitted results.

ØThe   submitted documents must be approved by the applicant's supervisor, and the   content must not include confidential information.

ØThe   format of the document is not limited and can be in Word, PPT, PDF, or other   formats which can clearly describe the author's work. If there is a demo, a   video or a live demonstration can be provided.

ØNot   limited in traditional display areas such as OLED and TFT , innovations in   areas such as driving efficiency improvement, display health research, 3D   display, and advanced display materials are all welcomed in this competition.

Evaluation

Preliminary   Round: Initial evaluation based on the submitted project documents, assessing   from the following indexes：innovation,   benefits, technical completeness, and feasibility.  

Final   Round: On-site presentation, where students can present demos, simulation   results, and other documents.