Brightness adjustment device, system and method of PMOLED display module

A brightness adjustment and display module technology, which is applied to static indicators, instruments, etc., can solve problems such as poor uniformity and large brightness differences, and achieve the effects of improving uniformity, improving brightness differences, and increasing shipment rates

Active Publication Date: 2019-04-16
芯颖科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a PMOLED display module brightness adjustment device, system and method to alleviate the technical problems of existing PMOLED display modules with large brightness differences and poor uniformity.

Method used

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  • Brightness adjustment device, system and method of PMOLED display module
  • Brightness adjustment device, system and method of PMOLED display module
  • Brightness adjustment device, system and method of PMOLED display module

Examples

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Effect test

Embodiment 1

[0043] like figure 2 and image 3 As shown, the embodiment of the present invention provides a PMOLED display module brightness adjustment device, including a flexible circuit board FPC100, a display driver chip 200 and a display panel 300 connected in sequence, and the above-mentioned flexible circuit board is used to receive the brightness sent by the MCU. command and transmit the above-mentioned brightness command to the above-mentioned display driver chip; the above-mentioned flexible circuit board is provided with a level adjustment module 400;

[0044] Wherein, the above-mentioned level adjustment module 400 is used to generate a level value corresponding to the brightness adjustment ratio data and output it to the above-mentioned display driver chip; the above-mentioned brightness adjustment ratio data is determined by the factory brightness and target brightness of the display module of;

[0045] The above-mentioned display driving chip 200 is used for generating a ...

Embodiment 2

[0081] like Figure 4 As shown, the embodiment of the present invention also provides a PMOLED display module brightness adjustment system, including: MCU500 and the PMOLED display module brightness adjustment device as described in the first embodiment; the above-mentioned PMOLED display module brightness adjustment device and the above-mentioned connected to the MCU.

[0082] Specifically, the MCU500 is connected to the flexible circuit board FPC400.

[0083] Further, there are a plurality of the above-mentioned PMOLED display module brightness adjustment devices, and a plurality of the above-mentioned PMOLED display module brightness adjustment devices are respectively connected with the above-mentioned MCU.

[0084] The PMOLED display module brightness adjustment system provided by the embodiment of the present invention has the same technical features as the PMOLED display module brightness adjustment device provided in the above-mentioned embodiment, so it can also solv...

Embodiment 3

[0087] like Figure 5 As shown, an embodiment of the present invention also provides a method for adjusting the brightness of a PMOLED display module, which is applied to the above-mentioned device for adjusting the brightness of a PMOLED display module in the first embodiment. The method is executed by a display driver chip, including:

[0088] Step S501, receiving a brightness instruction sent by the MCU;

[0089] Specifically, the instruction receiving module of the display driver chip receives the brightness instruction sent by the MCU through the FPC, and the brightness instruction is used to modify the brightness of the first-level brightness register in the display driver chip.

[0090] Step S502, acquiring the level value output by the level adjustment module.

[0091] Specifically, the interface reading module of the display driver chip reads the level value output by the level adjustment module through the FPC digital communication interface;

[0092] Step S503, sy...

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Abstract

The invention provides a brightness adjustment device, system and method of a PMOLED display module, and relates to the display field. The technical problem that the existing PMOLED display module haslarge brightness difference and poor uniformity can be alleviated. The device comprises a flexible circuit board, a display driving chip and a display panel, which are connected in sequence, whereinthe flexible circuit board is used for receiving a brightness instruction sent by an MCU and transmitting the brightness instruction to the display driving chip; a level adjustment module is arrangedon the flexible circuit board; the level adjustment module is used for generating a level value corresponding to brightness adjustment ratio data and outputting the level value to the display drivingchip; the brightness adjustment ratio data are determined by the factory brightness and the target brightness of the display module; and the display driving chip is used for generating a brightness driving signal based on the level value and the brightness instruction and outputting the brightness driving signal to the display panel. The device can improve the brightness difference of the PMOLED display module and improve the uniformity.

Description

technical field [0001] The present invention relates to the technical field of display equipment, in particular to a PMOLED display module brightness adjustment device, system and method. Background technique [0002] A PMOLED (Passive Matrix Organic Light Emitting Diode) display module includes a display panel, a display driver chip and a flexible printed circuit board (Flexible Printed Circuit Board, FPC). [0003] like figure 1 As shown, the current existing PMOLED (passive matrix organic light emitting diode) display module brightness adjustment circuit is composed of a command receiving module and a brightness driving module. The command receiving module receives the brightness command sent by the MCU, and the brightness command modifies the brightness of the brightness register. The brightness driving module drives the display panel according to the driving signal output by the brightness register. [0004] Due to the large difference in the brightness of the PMOLED ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3216
CPCG09G3/3216G09G2320/0626
Inventor 徐海涛赵蕴阳江彬周荣荣
Owner 芯颖科技有限公司
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