Built-in touch display panels basing on organic light emitting devices (OLEDs)
The present disclosure relates to a built-in touch display panel basing on OLED includes: a thin film transistor (TFT) layer, an anode layer, an OLED layer, and a cathode layer are configured along a bottom-to-up direction; and the cathode layer includes a plurality of first cathode blocks and the second cathode blocks, wherein the first cathode blocks and the second cathode blocks are interleaved with each other along a horizontal direction and along a vertical direction of the display panel, the adjacent first cathode blocks are electrically connected, and the adjacent second cathode blocks are electrically connected. In this way, the built-in touch display panel basing on OLED may be obtained by simple manufacturing process having the low cost and high yield rate.
1. A built-in touch display panel based on organic light emitting displays (OLEDs), comprising:
a thin film transistor (TFT) layer, an anode layer, an OLED layer, and a cathode layer are configured sequentially along a bottom-to-up direction and cooperatively operate with each other to display images;
the cathode layer comprises a plurality of first cathode blocks and a plurality of second cathode blocks, wherein the first cathode blocks and the second cathode blocks are interleaved with each other along a horizontal direction and along a vertical direction of the display panel, the adjacent first cathode blocks are electrically connected, and the adjacent second cathode blocks are electrically connected;
the first cathode block are driving electrodes and the second cathode blocks are sensing electrodes or the second cathode blocks are driving eletrodes and the first cathode blocks are sensing electodes, so as to perform a touch function of the display panel;
wherein the cathode layer further comprises a plurality of dividing blocks arranged between the first cathode blocks and the second cathode blocks, and cross-sections of the dividing blocks are reverse-cone-shaped;
the thin-film transistor (TFT) array layer comprises at least one conductive layer, wherein the conductive layer is configured with a plurality of conductive bridges, the adjacent second cathode blocks are electrically connected via the corresponding conductive bridges;
wherein four dividing blocks are arranged at four corners of each of the first cathode blocks, and each of the first cathode blocks electrically connects to four adjacent first cathode blocks via the four diving blocks; and
wherein each of the four dividing blocks comprises a specific pattern extending toward one of the cathode blocks and toward another adjacent first cathode block such that both the first cathode blocks are electrically connected on the cathode layer.
2. The display panel as claimed in claim 1 , wherein each conductive bridge passes through the anode layer and the OLED layer to contact directly with two corresponding second cathode blocks.
3. The display panel as claimed in claim 2 , wherein the conductive bridges are formed by signal lines of the conductive layer.
4. The display panel as claimed in claim 1 , wherein shapes and the dimensions of the cross-sections of the first cathode blocks and the second cathode blocks are the same.
5. The display panel as claimed in claim 4 , wherein cross-sections of the first cathode blocks and the second cathode blocks are rectangular.
6. The display panel as claimed in claim 5 , wherein a minimum distance between the adjacent first cathode block and the second cathode block is defined as a sub-pixel distance.