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1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU0059)
http://forum.hobbycomponents.com/viewtopic.php?f=75&t=1818
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Author:  microbby [ Wed Nov 02, 2016 4:55 pm ]
Post subject:  Re: 1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU005

Hello
I am not able to find the complete datasheet of this display, in particular the duration in hours at various levels of contrast and the relationship with the values to be sent to the display to get it.
Looking forward to your reply, thank you, Marco

Author:  andrew [ Thu Nov 03, 2016 12:40 pm ]
Post subject:  Re: 1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU005

I've taken a quick look though the datasheet for the screen itself and it looks to me that the screen life will be effected by two things, the reference current at Iref which is fixed fixed to a specific value by a resistor on the module, and the contrast setting which is set by software. However the datasheet doesn't give any specific settings to display life parameters. Here is what it says about display life:

Life Time (120 cd/m2) = 10,000 hour
Life Time (80 cd/m2) = 30,000 hour
Life Time (60 cd/m2) = 50,000 hour


VCC = 12.0V, Ta = 25°C, 50% Checkerboard.
End of lifetime is specified as 50% of initial brightness reached. The average operating lifetime at room temperature is estimated by the accelerated operation at high temperature conditions.

However I need to contact the manufacture to confirm that the display datasheet we have is correct for the currently shipped displays. They are based in China so so I'll will post here when we get confirmation.

Author:  microbby [ Tue Nov 08, 2016 8:51 am ]
Post subject:  Re: 1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU005

Thanks, I will wait for the complete datasheet.

Looking for ward, MC

Author:  microbby [ Tue Nov 08, 2016 8:51 am ]
Post subject:  Re: 1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU005

Thanks, I will wait for the complete datasheet.

Looking for ward, MC

Author:  andrew [ Tue Nov 08, 2016 4:07 pm ]
Post subject:  Re: 1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU005

I've attached an additional datasheet to the first post (GMO13002-4PIN(1_3) SERIES Spec.pdf) which I've just revived from the manufacture. As previously mentioned it provides display life data based on display brightness but there isn't any specific data for display life for different config setting I'm afraid.

I'm also updating my previous post based on the information in this datasheet.

Author:  microtec [ Wed Mar 29, 2017 1:10 pm ]
Post subject:  Re: 1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU005

Hello,
I'm doing some test by changing the contrast register (81h) and writing values from 00h to FFh.
Is it normal that if I set the register to low values (00h to 05h) the brightness is about at 50% of the maximum ?
I expected to have a display almost off with a brightness less than 10%.

Thank you
Maurizio

Author:  andrew [ Wed Mar 29, 2017 3:06 pm ]
Post subject:  Re: 1.3" SH1106 uOLED Display Module (HCMODU0058 & HCMODU005

I've just given it a quick try myself and I get the same behavior as you, the display is about half contrast with a value of zero. The data sheet is unfortunately not very clear on what to expect. It gives an equation that indicates the ISEG current will be 0 with a register value of 0x00 but then slightly further down there is a table which implies there will still be a 'small' amount of current driving the display. All I can say is I get them same results as you so it's probably the correct behavior.

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