Display Panel Line-Based Viewing Angle Mode Switching
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Solution Overview
Problem
Existing display technologies struggle to adjust viewing angles independently for different areas of a vehicle display screen, making it difficult to switch between shared and privacy modes as desired.
Innovation Solution
A display panel with pixel circuits that can selectively drive first and second light-emitting elements, utilizing a shift register and output circuit to control mode switching on a line basis, allowing for a multiplexing switch unit to apply gate-on and gate-off voltages based on mode control signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pixels are divided into narrow viewing angle pixels and wide viewing angle pixels for different screen areas, then personal content and shared content can be displayed simultaneously, but it becomes difficult to adjust the viewing angle for each area as desired
Solution Approach 1:
The display screen is segmented into multiple independent control lines, where each line can independently select between narrow viewing angle pixels and wide viewing angle pixels. This allows different horizontal regions of the screen to have different viewing angle characteristics, enabling flexible adjustment of viewing angles for different areas while maintaining ease of operation through line-based control.
2Adaptability or versatility
If a shift register and output circuit are added to enable line-based mode control, then mode setting freedom is maximized, but the number of required signals increases
Solution Approach 1:
The shift register and output circuit are integrated into the existing gate driving unit structure, merging the mode control functionality with the gate signal generation. This integration allows line-based mode control to be achieved while reusing existing signal lines and circuit resources, thereby minimizing the increase in overall device complexity and signal requirements.
Solution Approach 2:
The gate driving unit is designed to perform multiple functions: generating gate signals for pixel selection and simultaneously providing mode control signals for selecting between narrow and wide viewing angle pixels on a line basis. This multi-functionality reduces the need for separate dedicated control circuits and signals, minimizing device complexity while maximizing mode setting freedom.
Data Source
AI summary
A display panel according to an embodiment and a display device including the same are disclosed. The display panel includes a plurality of pixel circuits each configured to selectively drive a first light-emitting element and a second light-emitting element, a shift register configured to output a mode control signal for driving each of the pixel circuits sharing a data line on a line basis according to a clock signal, an output circuit configured to output the mode control signal output from the shift register according to a line control signal, and a multiplexing switch unit configured to output a gate-on voltage and a gate-off voltage to the pixel circuits of a corresponding line on the basis of the mode control signal output from the output circuit.