# US 10,871,672 B2 · Display panel, production method, and display apparatus

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- Number: US 10,871,672 B2
- Document ID: US10871672B2
- Status: Granted
- Kind: B2
- Application number: 15/974,672
- Filed: 2018-05-08
- Published: 2019-05-02
- Granted: 2020-12-22
- Earliest claimed: 2017-10-31
- Assignees: Boe Technology Group Co., Ltd.; Ordos Yuansheng Optoelectronics Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.; Ordos Yuansheng Optoelectronics Co., Ltd.
- Inventors: Zifeng Wang; Fengguo Wang; Dawei Shi
- Web page: https://patentgrep.com/patent/US10871672B2

## CPC

- G02F 1/133512: {Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence)}
- G02F 1/133514: {Colour filters}
- G02F 1/133602: {Direct backlight}
- G02F 1/136209: {Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element}
- G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)}
- H10D 86/40: characterised by multiple TFTs
- H10D 86/60: wherein the TFTs are in active matrices
- G02F 2201/123: pixel
- G02F 2203/02: reflective
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

This disclosure provides a display panel, a production method, and a display apparatus. The display panel comprises a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate is provided with a black matrix, and the second substrate is provided oppositely to the first substrate and is provided with a light-shielding layer pattern. A surface of the light-shielding layer pattern has a light-reflecting property, and a projection of at least a part of the light-shielding layer pattern on the second substrate extends beyond a projection of the black matrix on the second substrate.

## Claims

### Claim 1

A display panel, comprising:
a first substrate which is provided with a black matrix and a plurality of sub-pixels in an array arrangement, wherein black matrix lines of the black matrix are provided between adjacent sub-pixels;
a second substrate which is provided oppositely to the first substrate and is provided with a light-shielding layer pattern comprising light-shielding lines; and
a liquid crystal layer which is provided between the first substrate and the second substrate;
wherein the light-shielding layer pattern has a light-reflecting property and is located on a side of the second substrate facing the first substrate,
wherein:
each black matrix line of the black matrix is provided in correspondence with at least two adjacent light-shielding lines, an orthographic projection of a first one of the at least two adjacent light-shielding lines on the second substrate in a direction perpendicular to the surface of the second substrate extends beyond an orthographic projection of the black matrix line on the second substrate in the direction perpendicular to the surface of the second substrate on a first side of the black matrix line, and an orthographic projection of a second one of the at least two adjacent light-shielding lines on the second substrate in the direction perpendicular to the surface of the second substrate extends beyond the orthographic projection of the black matrix line on the second substrate in the direction perpendicular to the surface of the second substrate on a second side of the black matrix line; and
a gap is provided between the first one and the second one of the at least two adjacent light-shielding lines, and an orthographic projection of the gap on the first substrate falls within a range of an orthographic projection of the corresponding black matrix line of the black matrix on the first substrate; and
wherein the first substrate is provided at a light emitting side of the display panel, and the second substrate is provided at a light incident side of the display panel.

### Claim 2 (depends on 1)

The display panel according to claim 1, wherein a line width of the light-shielding lines is approximately 1.1 to 1.3 times that of the black matrix lines.

### Claim 3 (depends on 1)

The display panel according to claim 1, wherein the light-shielding layer pattern is formed of a photonic crystal.

### Claim 4 (depends on 3)

The display panel according to claim 3, wherein the photonic crystal comprises a plurality of silicon oxide layers and a plurality of silicon nitride layers which are alternately laminated.

### Claim 5 (depends on 1)

A display apparatus, comprising the display panel according to claim 1.

### Claim 6 (depends on 5)

The display apparatus according to claim 5, further comprising a backlight unit, wherein the backlight unit is provided on one side of the second substrate, so that a light emitted from the backlight unit enters the display panel through the light-shielding layer pattern of the display panel.