# US 2014/0152937 A1 · Liquid-crystal display (lcd) panel capable of achieving low-temperature display

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- Number: US 2014/0152937 A1
- Document ID: US20140152937A1
- Status: Published application
- Kind: A1
- Application number: 14/093,592
- Filed: 2013-12-02
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: Beijing Boe Display Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Applicants: Beijing Boe Display Technology Co., Ltd.; Boe Technology Group Co., Ltd.
- Inventors: Changgang HUANG; Hongjiang WU
- Web page: https://patentgrep.com/patent/US20140152937A1

## CPC

- G02F 1/133382: {Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell}
- G02F 1/1362: Active matrix addressed cells {(G02F1/134336, G02F1/134363 take precedence)}
- G02F 1/133567: {on the back side}
- G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels}
- 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

## Abstract

A liquid-crystal display (LCD) panel capable of achieving low-temperature display comprises an opposing substrate. a thin-film transistor (TFT) substrate and a liquid crystal layer disposed between the opposing substrate and the TFT substrate, a TFT pattern including gate lines and data lines is disposed on the front side of the TFT substrate, and an electrical heating pattern corresponding to the TFT pattern is disposed on the back side of the TFT substrate.

## Claims

### Claim 1

A liquid-crystal display (LCD) panel capable of achieving low-temperature display. comprising: an opposing substrate, a thin-film-transistor (TFT) substrate and a liquid crystal layer disposed between the opposing substrate and the TFT substrate,
wherein a TFT pattern including gate lines and data lines is disposed on a front side of the TFT substrate; and an electrical heating pattern corresponding to the TFT pattern is disposed on a back side of the TFT substrate.

### Claim 2 (depends on 1)

The LCD panel capable of achieving low-temperature display according to claim 1, wherein the TFT substrate further includes: a control circuit board arranged on a same side with the electrical heating pattern and a temperature sensor arranged on a side wall of the TFT substrate,
wherein a control circuit on the control circuit board is respectively connected with the electrical heating pattern and the temperature sensor.

### Claim 3 (depends on 1)

The LCD panel capable of achieving low-temperature display according to claim 1, wherein the electrical heating pattern is made of a material which can emit heat under application of a voltage.

### Claim 4 (depends on 3)

The LCD panel capable of achieving low-temperature display according to claim 3, wherein the material is Fe—Cr—Al alloy or Ni—Cr alloy.

### Claim 5 (depends on 2)

The LCD panel capable of achieving low-temperature display according to claim 2, wherein the control circuit board is bonded on the TFT substrate.

### Claim 6 (depends on 5)

The LCD panel capable of achieving low-temperature display according to claim 5, wherein the control circuit board is bonded on the TFT substrate via conductive adhesive.

### Claim 7 (depends on 2)

The LCD panel capable of achieving low-temperature display according to claim 2, wherein the control circuit board is independently arranged or integrated into a drive circuit board of the TFT pattern.

### Claim 8 (depends on 2)

The LCD panel capable of achieving low-temperature display according to claim 2, wherein the temperature sensor is bonded on the side wall of the TFT substrate.

### Claim 9 (depends on 2)

The LCD panel capable of achieving low-temperature display according to claim 2, wherein the electrical heating pattern is made of a material which can emit heat under application of a voltage.

### Claim 10 (depends on 9)

The LCD panel capable of achieving low-temperature display according to claim 9, wherein the material is Fe—Cr—Al alloy or Ni—Cr alloy.

### Claim 11 (depends on 3)

The LCD panel capable of achieving low-temperature display according to claim 3, wherein the control circuit board is independently arranged or integrated into a drive circuit board of the TFT pattern.

### Claim 12 (depends on 3)

The LCD panel capable of achieving low-temperature display according to claim 3, wherein the temperature sensor is bonded on the side wall of the TFT substrate.