Labeled toggle checkbox 

The checkbox type with the renderType checkboxLabeledToggle is displayed as a toggle switch where both states can be labelled (ON / OFF, Visible / Hidden or alike).

Its state can be inverted via invertStateDisplay

Examples 

Single checkbox with labeled toggle 

A toggle with the labels Open and Closed

A toggle with the labels Open and Closed

EXT:my_extension/Configuration/TCA/Overrides/116-tx_myextension_conference-registration_open.php 
<?php

use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;

defined('TYPO3') or die();

ExtensionManagementUtility::addTCAcolumns('tx_myextension_conference', [
  'registration_open' => [
    'label' => 'my_extension.db:conference.registration_open',
    'onChange' => 'reload',
    'config' => [
      'type' => 'check',
      'renderType' => 'checkboxLabeledToggle',
      'items' => [
        [
          'label' => 'my_extension.db:conference.registration_open',
          'labelChecked' => 'my_extension.db:conference.registration_open.open',
          'labelUnchecked' => 'my_extension.db:conference.registration_open.closed',
        ],
      ],
    ],
  ],
]);
ExtensionManagementUtility::addToAllTCAtypes(
  'tx_myextension_conference',
  'registration_open',
  '',
  'after:published',
);
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Single checkbox with labeled toggle inverted state display 

The field stores 1 when the comments on a talk are closed. With invertStateDisplay, the toggle is on while the comments are open. The labels labelChecked and labelUnchecked follow the displayed state of the toggle, not the stored value:

A toggle that is switched on and shows the label Open

The toggle is on, and the comments are open

EXT:my_extension/Configuration/TCA/Overrides/256-tx_myextension_talk-comments_closed.php 
<?php

use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;

defined('TYPO3') or die();

ExtensionManagementUtility::addTCAcolumns('tx_myextension_talk', [
  'comments_closed' => [
    'label' => 'my_extension.db:talk.comments_closed',
    'config' => [
      'type' => 'check',
      'renderType' => 'checkboxLabeledToggle',
      'items' => [
        [
          'label' => 'my_extension.db:talk.comments_closed',
          // The toggle is on while the comments are open
          'invertStateDisplay' => true,
          'labelChecked' => 'my_extension.db:talk.comments_closed.open',
          'labelUnchecked' => 'my_extension.db:talk.comments_closed.closed',
        ],
      ],
    ],
  ],
]);
ExtensionManagementUtility::addToAllTCAtypes(
  'tx_myextension_talk',
  'comments_closed',
  '',
  'before:comments',
);
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