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A display with a blue pigment layer under a black matrix

A black matrix, display technology, applied in instruments, nonlinear optics, optics, etc., can solve problems such as large black matrix reflection

Active Publication Date: 2019-04-16
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, black matrix reflections can still be larger than expected if care is not taken

Method used

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  • A display with a blue pigment layer under a black matrix
  • A display with a blue pigment layer under a black matrix
  • A display with a blue pigment layer under a black matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] figure 1 An exemplary electronic device of the type that may have a display is shown in. Electronic equipment such as figure 1 The exemplary electronic device 10 may be a laptop computer, a tablet computer, a cell phone, a media player, other handheld and portable electronic devices, smaller devices such as watch devices, hanging devices, headsets, and head-mounted devices , Other wearable and micro devices, or other electronic devices.

[0017] Such as figure 1 As shown, the device 10 may include a storage and processing circuit 18 and an input and output circuit 12. The storage and processing circuit 18 may include storage devices, such as hard disk drive storage devices, non-volatile memory (e.g., flash memory configured to form a solid-state drive or other electrically programmable read-only memory), volatile memory (e.g., Static or dynamic random access memory), etc. The processing circuit in the storage and processing circuit 18 can be used to control the operation...

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PUM

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Abstract

A liquid crystal display has a color filter layer and a thin-film transistor layer surrounding a layer of liquid crystal material. The display may have an active area with an array of display pixels. An inactive area may surround the active area. A black mask structure may be formed in the inactive area. A black matrix having a grid shape with rectangular openings may be formed in the active area. Red, green, and blue color filter elements may be formed in the rectangular openings. The black matrix may have a first layer that is formed from a grid of blue photoresist on a color filter substrate and a second layer that is formed from an aligned grid of black photoresist. In the inactive area, the black mask structure may be formed a layer of blue photoresist covered with a layer of black photoresist.

Description

Background technique [0001] The present invention relates generally to displays, and more particularly to displays having color filter layers. [0002] Electronic devices such as computers and handheld electronic devices have displays such as liquid crystal displays. Liquid crystal displays usually have a rectangular central effective area surrounded by a ring-shaped ineffective area. The display pixel array in the active area can be used to display the image to the user. The color filter layer formed by an array of color filter elements, such as red pigment, blue pigment, and green pigment, is used to provide the display with the ability to display color images. The color filter layer includes a black mask in the invalid area. [0003] The black mask is formed of a polymer black mask layer and is used to shield the internal display components from being seen. The part of the black mask layer is used to create a grid-like black matrix in the effective area of ​​the display. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335
CPCG02F1/133512G02F1/133514G02F1/133516G02F1/133357G02F1/133388G02F1/133528
Inventor 池承元李浩川
Owner LG DISPLAY CO LTD