Dual-View Display Pixel Circuit With Shared Source Lines

Solution Overview

Problem

Existing dual-view display devices face challenges in efficiently managing multiple images for different viewers by requiring complex circuitry and high power consumption, which can distract the driver in a vehicle setting.

Innovation Solution

A dual-view display device with a novel circuit configuration where adjacent first and second transistors share a common source line, allowing for differentiated gate voltage thresholds to control individual pixel operation, reducing the number of source lines and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If separate source lines are used for each transistor connected to display pixels, then each pixel can be independently controlled, but the number of source lines increases leading to higher device complexity and power consumption

Engineering Contradiction:

ImproveIndependent pixel controlVSAvoidNumber of source lines

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the source lines for adjacent transistors by connecting transistors at alternating pixel positions to the same source line. Specifically, transistors connected to pixels at even positions share one source line while transistors connected to pixels at odd positions share another source line, reducing the total number of source lines required

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the pixel array into alternating groups along the source line arrangement direction, where pixels at even positions form one group and pixels at odd positions form another group. Each group is controlled by its own source line, enabling independent control while reducing overall complexity

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If separate source lines are used for each transistor connected to display pixels, then each pixel can be independently controlled, but power consumption increases

Engineering Contradiction:

ImproveIndependent pixel controlVSAvoidPower consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The patent merges the source lines for adjacent transistors by connecting transistors at alternating pixel positions to the same source line. Specifically, transistors connected to pixels at even positions share one source line while transistors connected to pixels at odd positions share another source line, reducing the total number of source lines required

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent employs sequential scanning where source lines are activated in turns rather than simultaneously. One source line is selected and activated to drive a group of pixels, then deactivated, followed by activation of the next source line. This temporal multiplexing reduces instantaneous power consumption while maintaining independent pixel control capability

Inventive Principle:

Principle #34Discarding and recovering

3Adaptability or versatility

If complex circuitry is used to manage multiple images for different viewers, then dual-view functionality is achieved, but device complexity and cost increase

Engineering Contradiction:

ImproveDual-view functionalityVSAvoidCircuit configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the source lines for adjacent transistors by connecting transistors at alternating pixel positions to the same source line. Specifically, transistors connected to pixels at even positions share one source line while transistors connected to pixels at odd positions share another source line, reducing the total number of source lines required

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent employs sequential scanning where source lines are activated in turns rather than simultaneously. One source line is selected and activated to drive a group of pixels, then deactivated, followed by activation of the next source line. This temporal multiplexing reduces instantaneous power consumption while maintaining independent pixel control capability

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20260065835A1Display device

Publication Date: 2026.03.05 SHARP KK

AI summary

A display device includes a display surface, a first display pixel, a second display pixel, a first transistor, and a second transistor. The display device can present a first image to a first user at a first position relative to the display surface and a second image different from the first image to a second user at a second position different from the first position. The first display pixel and the second display pixel contribute to forming the first image and the second image, respectively. The first display pixel and the second display pixel are located alternately in a source line arrangement direction in the display device. The first transistor and the second transistor are connected to the first display pixel and the second display pixel, respectively. The first transistor and the second transistor that are adjacent in the source line arrangement direction are connected to an identical source line.