Merged-Pixel Display Circuit With Voltage Divider for Data Retention
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Solution Overview
Problem
Existing display devices, particularly head-mounted displays, suffer from significant loss of image data information in merged pixels, which degrades image quality.
Innovation Solution
The display device incorporates a specific circuit configuration involving light-emitting elements, switching transistors, driving transistors, capacitors, and voltage dividers to improve pixel resolution, including a voltage divider with a first and second resistor, connected in a manner that minimizes data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixels are merged to increase resolution in head-mounted displays, then image detail is improved, but image data information loss increases
Solution Approach 1:
The pixel circuit is segmented into multiple functional components: first and second switching transistors for data signal input, driving transistor for current control, capacitor for voltage storage, and voltage divider with resistors for precise voltage regulation. This segmentation allows each component to handle specific aspects of signal processing, reducing information loss while maintaining high resolution.
Solution Approach 2:
The voltage divider circuit acts as an intermediary between the capacitor and the light-emitting element, regulating the voltage supplied to the OLED. The resistors in the voltage divider circuit mediate the voltage distribution, ensuring stable and accurate voltage levels to minimize data information loss during the pixel operation cycle.
2Measurement precision
If high-resolution display is implemented in head-mounted displays, then image quality is improved, but device complexity increases
Solution Approach 1:
The pixel circuit design integrates multiple functions into a unified structure: the first and second switching transistors handle data signal input during different time periods, the capacitor maintains voltage levels, and the voltage divider regulates output voltage. This multi-functional integration achieves high resolution while managing circuit complexity through shared components and coordinated operation.
Solution Approach 2:
The capacitor is pre-charged to a specific voltage level before the light-emitting element operates, and the voltage divider is pre-configured with specific resistor ratios to establish the correct voltage distribution. This preliminary action ensures that when the pixel activates, the correct voltage and current levels are already in place, reducing the need for complex real-time regulation circuits.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces loss of image data information in merged pixels, thereby enhancing image quality.
Implementation Method 1
a light-emitting element; a first switching transistor connected to a scan line and a first data line; a driving transistor connected to the first switching transistor, a driving voltage line, and the light-emitting element
Data Source
AI summary
The present disclosure relates to a display device, and more particularly, to a display device capable of reducing or minimizing loss of image data information in merged pixels. A display device includes: a light-emitting element; a first switching transistor connected to a scan line and a first data line; a driving transistor connected to the first switching transistor, a driving voltage line, and the light-emitting element; a capacitor, one electrode of the capacitor being connected to a source electrode of the driving transistor; a second switching transistor connected to the scan line and a second data line; and a voltage divider connected to an other electrode of the capacitor, the first switching transistor, and the second switching transistor.