Image display panel, image display device, and manufacturing method of the image display panel
View Patent ↗An image display panel includes: a lower substrate; self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit; a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit; and an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate, wherein the self-light emitting elements for image display emit emission light to the lower substrate side or the upper substrate side, and the self-light emitting element for monitoring emits the monitoring light to at least the upper substrate side or the lower substrate side.
1. An image display panel comprising:
a lower substrate;
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit;
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit; and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring.
2. An image display panel according to claim 1 , wherein
the self-light emitting elements for image display are organic EL elements of a top emission type, and
the self-light emitting element for monitoring is an organic EL element of a bottom emission type.
3. An image display panel according to claim 2 , wherein
the self-light emitting elements for image display are formed by sequentially laminating lower electrodes formed by sequentially laminating reflective electrodes and transparent electrodes and upper electrodes including organic EL layers and transparent electrodes, and
the self-light emitting element for monitoring is formed by sequentially laminating a lower electrode including a transparent electrode and an upper electrode formed by sequentially laminating an organic EL layer, a transparent electrode, and a reflective electrode.
4. An image display panel according to claim 1 , wherein
the self-light emitting elements for image display are organic EL elements of a bottom emission type, and
the self-light emitting element for monitoring is at least an organic EL element of a top emission type.
5. An image display panel according to claim 4 , wherein
the self-light emitting elements for image display are formed by sequentially laminating lower electrodes including transparent electrodes and upper electrodes formed by sequentially laminating organic EL layers, transparent electrodes, and reflective electrodes, and
the self-light emitting element for monitoring is formed by sequentially laminating a lower electrode formed by sequentially laminating a reflective electrode and a transparent electrode and an upper electrode including an organic EL layer and a transparent electrode.
6. An image display panel comprising:
a lower substrate;
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit;
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit; and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring, and
a light receiving element that receives the monitoring light is provided.
7. An image display panel according to claim 6 , wherein
the self-light emitting elements for image display are organic EL elements of the top emission type, and
the self-light emitting element for monitoring is an organic EL element of the bottom emission type.
8. An image display device comprising:
an image display panel that displays image data; and
a luminance correcting unit that corrects light emission luminance of the image display panel on the basis of a light reception result of the light receiving element provided in the image display panel,
wherein the image display panel includes
a lower substrate,
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit,
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit, and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display device includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring, and
wherein the light receiving element that receives the monitoring light is provided.
9. An image display device according to claim 8 , wherein
the self-light emitting elements for image display are organic EL elements of the top emission type, and
the self-light emitting element for monitoring is an organic EL element of the bottom emission type.
10. A manufacturing method for an image display panel including
a lower substrate,
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit,
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit, and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring,
the manufacturing method comprising the steps of:
forming lower electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower substrate;
forming organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower electrode; and
forming upper electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the organic EL layers, wherein
the step of forming lower electrodes includes the steps of
forming reflective electrodes of the self-light emitting elements for image display on the lower substrate; and
forming a transparent electrode of the self-light emitting element for monitoring on the lower substrate.
11. A manufacturing method for an image display panel including
a lower substrate,
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit,
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit, and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring,
the manufacturing method comprising the steps of:
forming lower electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower substrate;
forming organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower electrode; and
forming upper electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the organic EL layers, wherein
the step of forming upper electrodes includes the steps of
forming transparent electrodes on the organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring; and
forming a reflective electrode of the transparent electrode of the self-light emitting element for monitoring.
12. A manufacturing method for an image display panel including
a lower substrate,
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit,
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit, and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring,
the manufacturing method comprising the steps of:
forming lower electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower substrate;
forming organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower electrode; and
forming upper electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the organic EL layers, wherein
in the step of forming organic EL layers, all or a part of plural organic layers forming the organic EL layers are formed by the self-light emitting elements for image display and the self-light emitting element for monitoring in the same process.
13. A manufacturing method for an image display panel including
a lower substrate,
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit,
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit, and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring,
the manufacturing method comprising the steps of:
forming lower electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower substrate;
forming organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower electrode; and
forming upper electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the organic EL layers, wherein
the step of forming lower electrodes includes the steps of
forming a reflective electrode of the self-light emitting element for monitoring on the lower substrate; and
forming a transparent electrode on the reflective electrode of the self-light emitting element for monitoring and forming transparent electrodes of the self-light emitting elements for image display on the lower substrate.
14. A manufacturing method for an image display panel including
a lower substrate,
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit,
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit, and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring,
the manufacturing method comprising the steps of:
forming lower electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower substrate;
forming organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower electrode; and
forming upper electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the organic EL layers, wherein
the step of forming upper electrodes includes the steps of
forming transparent electrodes on the organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring; and
forming reflective electrodes on the transparent electrodes of the self-light emitting elements for image display.
15. A manufacturing method for an image display panel including
a lower substrate,
self-light emitting elements for image display that are arranged on the lower substrate in a matrix shape and form an image display unit,
a self-light emitting element for monitoring that is arranged on the lower substrate and emits monitoring light for the image display unit, and
an upper substrate that holds the self-light emitting elements for image display and the self-light emitting element for monitoring in conjunction with the lower substrate,
wherein either
(a) the self-light emitting elements for image display are organic EL elements of a top emission type, and the self-light emitting element for monitoring is at least an organic EL element of a bottom emission type, or
(b) the self-light emitting elements for image display are organic EL elements of a bottom emission type, and the self-light emitting element for monitoring is at least an organic EL element of a top emission type,
such that the image display panel includes self-light emitting elements for image display and for monitoring that have opposite emission directions for display and monitoring,
the manufacturing method comprising the steps of:
forming lower electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower substrate;
forming organic EL layers of the self-light emitting elements for image display and the self-light emitting element for monitoring on the lower electrode; and
forming upper electrodes of the self-light emitting elements for image display and the self-light emitting element for monitoring on the organic EL layers, wherein
in the step of forming organic EL layers, all or a part of plural organic layers forming the organic EL layers are formed by the self-light emitting elements for image display and the self-light emitting element for monitoring in the same process.