PLED driving chip and display device

A drive chip, GND technology, applied in the direction of static indicators, instruments, etc., can solve the problems of unreasonable power supply pin layout, excessive display brightness reduction, large ITO voltage drop, etc., to reduce impedance, reduce impedance, The effect of reducing the brightness reduction

Pending Publication Date: 2022-01-07
上海傲显科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the unreasonable layout of the power supply pins of the existing PLED display chip, when the electronic barcode product is applied, the ITO (Indium Tin Oxide, indium tin oxide, an N-type oxide semicond

Method used

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  • PLED driving chip and display device

Examples

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Example Embodiment

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following examples are intended to illustrate the invention, but not to limit the scope of the invention.

[0019] Please refer to figure 1 , Embodiments provide a PLED driver chip according to the present invention, includes a substrate 10, VDD (DeviceVoltage, positive voltage chips) interface 20, GND (Ground, a negative voltage chips) interface 30, an interface signal line 40, external to VDD line 50, the external GND wiring 60, wiring 70 and the external signal line GND terminal head (not shown). GND end located within the substrate 10, interface 20 VDD, GND terminal 30, the interface signal lines 40 are disposed on the outer surface of the substrate 10, external VDD wiring 50 and the interface 20 is connected to VDD, GND wiring 60 is connected to the external interface 30 GND .

[0020] Interface 20 VDD, GND terminal 30 and a signal line arranged in a line interface 40, the interface 40 located between the signal lin...

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Abstract

The invention discloses a PLED driving chip which comprises a VDD interface, a GND interface and a signal line interface which are located outside the PLED driving chip, the VDD interface, the GND interface and the signal line interface are linearly arranged, and the signal line interface is located between the VDD interface and the GND interface. The invention further discloses a display device which comprises PLED glass and any one of the PLED driving chips. According to the PLED driving chip disclosed by the invention, the VDD interface and the GND interface are arranged at the two sides of the signal line interface, so that the VDD interface and the GND interface have enough space for arranging a power supply connecting line with a large width, and the impedance of the power supply connecting line is reduced, thereby reducing the voltage drop on a loop, reducing the reduction of the display brightness of the PLED and reducing the heat loss of a power supply. the use efficiency of the battery is improved.

Description

technical field [0001] The invention relates to the field of chip technology, in particular to a PLED driving chip and a display device. Background technique [0002] PLED (Polymer Light-Emitting Diode, polymer light-emitting diode) display is mainly used in the field of cheap LED (Light-Emitting Diode, light-emitting diode) display, such as electronic tags, electronic barcodes, electronic two-dimensional codes, etc. The PLED chip is used to drive the PLED glass, and convert the information to be displayed into the driving signal required by the PLED glass. [0003] Due to the unreasonable layout of the power supply pins of the existing PLED display chip, when the electronic barcode product is applied, the ITO (Indium Tin Oxide, indium tin oxide, an N-type oxide semiconductor) impedance of the power signal line is too large. During the display period, the voltage drop on the ITO impedance is too large, and the display brightness decreases too much, which affects the display...

Claims

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Application Information

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IPC IPC(8): G09G3/3208G09G3/20
CPCG09G3/3208G09G3/2096G09G2370/08
Inventor 徐海涛沈良超
Owner 上海傲显科技有限公司
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