Prism Module Corner Prism Set Borderless Display

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Solution Overview

Problem

Current multi-display screen splicing systems using liquid crystal displays (LCDs) suffer from discontinuous viewing due to frame formation between screens, resulting in a non-seamless display and affected viewing quality.

Innovation Solution

A display apparatus incorporating a prism module with corner and edge prism sets and a transparent element with inclined surfaces, which refracts image light to achieve a borderless display effect and reduces the thickness of the display apparatus.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a plurality of liquid crystal displays is used to achieve multi-screen display splicing, then the display area can be enlarged, but frames are formed between the display screens causing discontinuous viewing and affecting viewing quality

Engineering Contradiction:
Improvedisplay areaVSAvoidseamless splicing
Core Design Contradiction:
Area of stationary objectVSEase of manufacture

Solution Approach 1:

A transparent element with inclined surfaces is introduced as an intermediary component between adjacent display screens. This transparent element refracts light to redirect image light from the display area into the frame area, effectively mediating the transition between displayed and non-displayed regions to achieve seamless splicing effect

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent utilizes optical dimensionality by introducing inclined surfaces at specific angles (45-60 degrees) to redirect light paths in three-dimensional space. By changing the dimensional approach from two-dimensional screen arrangement to three-dimensional light path manipulation, the frame area is transformed into a functional display region

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If a transparent element with inclined surfaces is added to redirect light into frame areas, then seamless display is achieved, but the thickness of the display apparatus increases

Engineering Contradiction:
Improveseamless display effectVSAvoidthickness
Core Design Contradiction:
Ease of manufactureVSLength of stationary object

Solution Approach 1:

The patent optimizes the inclined angle parameter of the transparent element within a specific range (45-60 degrees) to achieve the desired light redirection effect while minimizing thickness increase. By carefully selecting and adjusting this critical parameter, the system balances optical performance with structural compactness

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If the light entering surface is retracted toward the display area, then the inclined surface can effectively redirect light into frame areas, but the structural complexity increases

Engineering Contradiction:
Improvelight redirection efficiencyVSAvoidstructural complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent applies the inclined surface structure locally only at specific corner regions where frame areas need light redirection, rather than uniformly across the entire display apparatus. This localized application of the inclined surface design reduces overall structural complexity while maintaining effective light redirection where needed

Inventive Principle:
Principle #3Local quality

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

The solution enables seamless image transmission across the display area and frame area, eliminating dark areas at corners and allowing both areas to display images, while maintaining a thinner profile.

Implementation Method 1

The prism module includes at least one corner prism set. Each of the at least one corner prism set is disposed on one of the corner regions respectively... the inclined surface and the light exiting surface have an inclined angle therebetween... image light of the display device can forward emit through the transparent element and the prism module

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS10067369B2Display apparatus with a prism module including a corner prism set disposed on a corner region
Publication Date: 2018.09.04 CHAMP VISION DISPLAY INC
  • US10067369B2 patent drawing
  • US10067369B2 patent drawing
  • US10067369B2 patent drawing

AI summary

A display apparatus including a display device having a display area and a frame area surrounding the display area, a prism module and a transparent element is provided. The corner regions of the frame are adjacent to the corners of the display area respectively. The prism module includes at least one corner prism set disposed on at least one of the corner regions. The transparent element is disposed between the display device and the prism module, and covers the corner regions. The transparent element includes a light entering surface facing the display device, a light exiting surface, and a plurality of side surfaces connected with the light entering surface and the light exiting surface. At least one of the side surfaces located in the corner regions is an inclined surface. The light entering surface connected to the inclined surface is retracted in a direction toward the display area.