Dimming Panel Substrate Buffering for Display Device
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Solution Overview
Problem
Display devices face issues with substrate cracking during transportation, leading to reduced yield due to the thinness of substrates which can cause them to hit the frame of the illumination device, resulting in damage.
Innovation Solution
The implementation of a display device configuration where the dimming panel's substrate is thicker and longer than the liquid crystal display panel's substrates, preventing these thinner substrates from hitting the frame and thus reducing the risk of cracking, while maintaining even bonding and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If thin substrates are used for the liquid crystal display panel, then the display quality and bonding evenness are improved, but the substrates are prone to cracking during transportation due to hitting the frame
Solution Approach 1:
The patent applies beforehand cushioning by designing the dimming panel substrate to extend beyond the frame boundaries, creating a protective buffer zone. This extended substrate configuration prevents the thinner liquid crystal display panel substrates from directly contacting and cracking upon impact with the frame during transportation, thus cushioning the thin substrates from harmful forces before damage can occur.
2Reliability
If the dimming panel substrate is made thicker and longer, then the protection against substrate cracking is improved, but the device complexity increases
Solution Approach 1:
The dimming panel substrate serves multiple functions: it acts as both the functional dimming component and a protective structural element that extends beyond the frame to prevent cracking of the thinner display substrates. This multi-functionality reduces device complexity by eliminating the need for separate protective structures, as the dimming panel substrate itself provides both optical control and mechanical protection.
Data Source
AI summary
According to one embodiment, a display device includes a liquid crystal display panel including a first substrate having a first length and a second substrate having a second length, a dimming panel including a third substrate having a third length and a fourth substrate having a fourth length, wherein the third length is greater than the first length, the second length and the fourth length, the first length is greater than the second length, the third thickness of the third substrate is greater than the first thickness of the first substrate, and the second thickness of the second substrate is greater than the first thickness.