<key>ThinkPad AppleIntelPanelA</key>
<dict>
<key>ApplePanels</key>
<dict>
<key>Default</key>
<data>
AAAHQAr3//4=
</data>
<key>F10T40b2</key>
<data>
ABEAAAAeACIAKAAxAD0ATABgAHkAmgDFAP0BPAGaAhQC
sgMg
</data>
</dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.AppleBacklight</string>
<key>IOClass</key>
<string>AppleIntelPanelA</string>
<key>IODisplayParameters</key>
<dict>
<key>brightness</key>
<dict>
<key>max</key>
<integer>255</integer>
<key>min</key>
<integer>10</integer>
</dict>
<key>commit</key>
<dict>
<key>reg</key>
<integer>0</integer>
</dict>
</dict>
<key>IOMatchCategory</key>
<string>IODisplayParameters</string>
<key>IONameMatch</key>
<string>backlight</string>
<key>IOProbeScore</key>
<integer>2000</integer>
<key>IOProviderClass</key>
<string>IOACPIPlatformDevice</string>
</dict>

40b2是我的lcd panel 的deviceid。最低亮度可以到10拉。