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Drive device for driving display panel

A driving device and display panel technology, applied to static indicators, instruments, semiconductor devices, etc., can solve problems such as open circuit, short circuit in connection state, dark spots in displayed images, etc.

Active Publication Date: 2021-01-12
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once a μLED die transpose fails, it means that the connection between the μLED die and the target substrate is short-circuited or open-circuited, which will cause a dark spot in the displayed image

Method used

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  • Drive device for driving display panel
  • Drive device for driving display panel
  • Drive device for driving display panel

Examples

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Embodiment Construction

[0056] As used throughout the specification of this application, including the claims, the term "coupled (or connected)" may refer to any means of connection, direct or indirect. For example, if it is described that a first device is coupled (or connected) to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be connected to the second device through other devices or certain A connection means indirectly connected to the second device. Terms such as "first" and "second" mentioned in the entire specification of this application (including the claims) are used to name elements (elements), or to distinguish different embodiments or ranges, and are not used to limit elements The upper or lower limit of the number is not used to limit the order of the elements. In addition, wherever possible, elements / components / steps using the same reference numerals in the drawings and embodiments represent the ...

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Abstract

The invention provides a driving device for driving a display panel, which includes a connection pad, a selection circuit, a data driving circuit and a detection circuit. The selection circuit is electrically connected to the data line of the display panel through the connection pad. The data driving circuit outputs the data voltage to the pixel circuit of the display panel through the selection circuit and the connection pad during the display stage. The detection circuit provides a detection signal to the light-emitting element of the pixel circuit through the selection circuit and the connection pad in the detection stage, and detects a result signal about the electrical characteristics of the light-emitting element of the pixel circuit in the detection stage.

Description

technical field [0001] The present invention relates to a driving device for driving a display panel, and in particular to a driving device capable of detecting the setting status of light-emitting elements in the display panel. Background technique [0002] Light-emitting display panels are widely used in various types of display devices, such as mobile phones, tablet computers, and so on. The light-emitting display panel is, for example, an organic light emitting diode (organic light emitting diode, OLED) display panel, a micro light emitting diode (micro light emitting diode, μLED) display panel, and the like. The display panel has a plurality of pixel circuits forming an array, wherein each pixel circuit has a light emitting element. In the OLED display panel, the light emitting element is an organic light emitting diode (OLED). In the μLED display panel, the light emitting element is a micro light emitting diode (μLED). [0003] In the μLED display panel process, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/32G09G2320/0295G09G2320/045G09G2330/12G09G2310/0243G09G2310/0297G09G3/006H10K59/131G09G3/3258H01L27/156
Inventor 张华罡刘上逸
Owner NOVATEK MICROELECTRONICS CORP