Dim display Display hard to read

No there is no bulb to replace as it is an LCD Display. Take it to a local electronics place and ask them to replace the capacitor on the back of the display circuit board.

https://www.google.com/search?q=Canon+MP11DX%2C+display+dim

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Change the batteries. LCD displays will appear very dim and hard to read except at certain angles is the batteries are low.

we have no idea what you are talking about in computer repairs

what PC, fails, or PC device, none stated, at all.

impossible answers or wrong await you.
dim screens, are cause by 2 things, or more.

if the battery is weak the OS detects that (no OS stated)
and dims the display on purpose. or a bad battery too.

or is turned down in brightness controls.
if a PC is older than 2010 , the CCLF lamps go dim (means bad)

I believe this is most likely due to incorrect voltages at the display. If you have a meter and are familiar with working on electronics, check the voltage at pin 3 of cn501. It should be -28.5. If the voltage is very low, try changing C123 and C124 in the power supply. If the voltage is ok, check R925 and R932, these are both 10 ohm 1/8th watt.

leds don;t dim as they get old they are either on or off and leds have a life span of around 20 years if driven with the wright voltage.it will a the plastic cover that covers the display or b the voltage to the leds in not wright.

You need a new touch pad display for this unit. Call us with your brand and model number and we'll get the right part out to you asap! We look forward to working with you!

You need to replace the C3 capacitor on the control board

http://fixitnow.com/wp/2009/01/28/cheap-fix-for-a-dim-display-on-an-oven-control-panel/

You can replace only the C3 - it is 68uF / 35V and you can go to Radio Shack and get their part # 272-1028 - 100uF/35V one. It takes all but 10 minutes to re-solder the new one in place

mY 27" WALL jENN air blows cold air out the vents when on cleaning cycle. The red buttons aren't lighted. The door locks, otherwise it bakes fine. I wonder if it is really cleaning?

I replaced the C3 capacitor on the circuit board and works fine. This was mentioned in a prior post and took 5 minutes and was under $5.00 for the part.

Have you tried Main Manu / Setup / Display and then adjusting the contrast?