Wearable Display Boundary Elimination via Dummy Data Driving
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Solution Overview
Problem
Existing display devices for wearable electronic devices face challenges in maintaining improved display quality, particularly when mounted on wearable devices, as the boundaries between viewing and non-viewing areas can be visible, leading to suboptimal image presentation.
Innovation Solution
The display device employs a dual-mode operation system, where in the first mode, it is mounted on a wearable device and drives the first and third pixel areas with dummy data to prevent visibility of boundaries, while in the second mode, all pixel areas emit light sequentially during a single frame period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device is mounted on a wearable device with distinct viewing and non-viewing areas, then the device can be worn on the body, but visible boundaries appear between the viewing and non-viewing areas
Solution Approach 1:
The patent applies local quality by driving different pixel areas with different data types based on their location. Specifically, the first pixel area (corresponding to the viewing area) is driven with image data, while the second pixel area (corresponding to the non-viewing area) is driven with dummy data that matches the luminance characteristics of adjacent pixels. This localized differentiation eliminates visible boundaries at the transition zone between viewing and non-viewing areas while maintaining the wearable device's adaptability.
2Productivity
If all pixel areas emit light sequentially during a single frame period, then the device operates in a standard display mode, but the boundaries between viewing and non-viewing areas remain visible when mounted on wearable devices
Solution Approach 1:
The patent implements dynamics by providing two distinct operation modes that can be switched based on the display device's usage context. In the first operation mode (for wearable device mounting), the display controller drives the first pixel area with image data and the second pixel area with dummy data. In the second operation mode (for standard display), all pixel areas emit light sequentially with image data. This dynamic switching resolves the contradiction between display efficiency and boundary visibility.
3Object-affected harmful factors
If the display device drives the first and third pixel areas with dummy data, then visible boundaries are prevented, but additional control complexity is introduced
Solution Approach 1:
The patent applies self-service by implementing the dual-mode operation and selective data driving logic within the display device itself, specifically in the display controller. The controller automatically determines the appropriate operation mode based on the mounting context and adjusts the data driving strategy accordingly, without requiring external intervention or complex external control systems. This keeps the added complexity contained within the display device's existing control architecture.
Data Source
Figure 1A~1B
Figure 1C~2
Figure 3
AI summary
A display device (10) includes a pixel unit including first pixels in a first pixel area (AA1), second pixels in a second pixel area (AA2), and third pixels in a third pixel area (AA3); a first scan driver (211) including first multiplexers configured to operate in response to a first mode (MCS1) and a second mode (MCS2) different from the first mode, and to supply first scan signals to first scan lines (S11 to S1j) connected to the first pixels; a second scan driver (212) configured to supply second scan signals to second scan lines (S21 to S2n) connected to the second pixels; and a third scan driver (213) including second multiplexers configured to operate in response to the first mode and the second mode, and to supply third scan signals to third scan lines (S31 to S3k) connected to the third pixels.