Patents by Inventor Chung-Lin Chang
Chung-Lin Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250251630Abstract: A display panel includes a first substrate, a second substrate, a plurality of pixel structures, a plurality of color filter patterns, a plurality of spacers, and a liquid crystal layer. The pixel structures are disposed on the first substrate, and each pixel structure includes a reflective electrode. The color filter patterns respectively overlap the reflective electrodes of the pixel structures. The spacers and the liquid crystal layer are disposed between the first substrate and the second substrate. The pixel structures include a first pixel structure, the spacers include a first spacer, and the color filter patterns include a first color filter pattern. The reflective electrode of the first pixel structure of the pixel structures overlaps the first spacer of the spacers and the first color filter pattern of the color filter patterns, and at least a portion of the first spacer does not overlap the first color filter pattern.Type: ApplicationFiled: November 5, 2024Publication date: August 7, 2025Applicant: HannStar Display CorporationInventors: Yu-Chi Chiao, Chen-Hao Su, Cheng-Yen Yeh, Mu-Kai Kang, Chung Lin Chang
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Publication number: 20250107234Abstract: A display device has a display area and a peripheral area, and includes an array substrate. The array substrate includes M number of pixel unit columns disposed in the display area and a first dummy electrode disposed in the peripheral area, where M is a positive integer greater than or equal to 2. The M number of pixel unit columns include a first pixel unit column to an Mth pixel unit column arranged in sequence. Each of the M number of pixel unit columns includes a plurality of pixel units arranged in sequence. The first dummy electrode is located on one side of the first pixel unit column. During a frame period, the first pixel unit column receives the first pixel signal, and the first dummy electrode receives the first dummy signal. The polarity of the first pixel signal is different from that of the first dummy signal.Type: ApplicationFiled: July 1, 2024Publication date: March 27, 2025Inventors: Chung-Lin CHANG, Hsuan-Chen LIU, Yu-Cheng LIN, Chen-Hao SU
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Publication number: 20230066074Abstract: The disclosure provides a display panel including a first substrate, multiple scan lines, multiple data lines, and multiple pixel structures. The scan lines and the data lines are disposed on the first substrate and intersect each other. One of the pixel structures includes an active element, a pixel electrode, a capacitor electrode, a common electrode, and a repair pattern. The active element includes a source, a drain, and a gate. The gate is electrically connected to one of the scan lines. The source is electrically connected to one of the data lines. The pixel electrode is electrically connected to the drain of the active element. The capacitor electrode is electrically connected to the pixel electrode and extends from the drain. The common electrode overlaps the pixel electrode and the capacitor electrode. The repair pattern overlaps one of the scan lines as well as the common electrode, and the pixel electrode.Type: ApplicationFiled: August 11, 2022Publication date: March 2, 2023Applicant: HannStar Display CorporationInventors: Chung Lin Chang, Hsuan-Chen Liu, Cheng-Yen Yeh, Yu-Cheng Lin, Chen-Hao Su
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Patent number: 11112641Abstract: The present invention provides a display panel having a display region and a peripheral region, and the display panel includes a plurality of pixel units including at least one inner pixel unit and at least one first peripheral pixel unit, and a shielding layer. A shape of the display region is non-rectangular. The inner pixel unit is disposed in the display region and includes at least one inner sub-pixel unit. The first peripheral pixel unit is disposed in both the display region and the peripheral region and includes at least one first peripheral sub-pixel unit. At least a part of the shielding layer is disposed in the peripheral region, and the at least a part partially overlaps the first peripheral pixel unit. A structure of the first peripheral pixel unit is different from a structure of the inner pixel unit.Type: GrantFiled: January 16, 2020Date of Patent: September 7, 2021Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Chung-Lin Chang, Hsuan-Chen Liu, Kun-Tsai Huang
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Patent number: 11092859Abstract: The present invention provides a display panel, the display panel includes at least one first inner sub-pixel disposed in a display region of the display panel and a plurality of first compensation sub-pixels disposed between an end of the first sub-pixel column and the first inner sub-pixel, and a shape of the display region is non-rectangular. Each of the first inner sub-pixel and the first compensation sub-pixels includes a sub-pixel unit, a light shielding sub-block and a color filter block, structures of the sub-pixel units of the first compensation sub-pixels are different from a structure of the sub-pixel unit of the first inner sub-pixel, and the structures of the sub-pixel units of the first compensation sub-pixels are different from each other.Type: GrantFiled: May 7, 2020Date of Patent: August 17, 2021Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Chung-Lin Chang, Hsien-Tang Hu, Kun-Tsai Huang
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Publication number: 20200365102Abstract: The present invention provides a display panel, the display panel includes at least one first inner sub-pixel disposed in a display region of the display panel and a plurality of first compensation sub-pixels disposed between an end of the first sub-pixel column and the first inner sub-pixel, and a shape of the display region is non-rectangular. Each of the first inner sub-pixel and the first compensation sub-pixels includes a sub-pixel unit, a light shielding sub-block and a color filter block, structures of the sub-pixel units of the first compensation sub-pixels are different from a structure of the sub-pixel unit of the first inner sub-pixel, and the structures of the sub-pixel units of the first compensation sub-pixels are different from each other.Type: ApplicationFiled: May 7, 2020Publication date: November 19, 2020Inventors: Chung-Lin Chang, Hsien-Tang Hu, Kun-Tsai Huang
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Patent number: 10840265Abstract: A display panel includes a substrate having a display region and a peripheral region, first and second sub pixels, first and second gate driving units. The display region includes a first area having first scan lines and first sub pixels and a second area having second scan lines and second sub pixels. A portion of the first sub pixels and a portion of the second sub pixels are respectively electrically connected to the first and second scan line. The first gate driving unit includes a first driving transistor. The second gate driving unit includes a second driving transistor. The number of the first sub pixels driven by the first gate driving unit is less than the number of the second sub pixels driven by the second gate driving unit. The channel width of the first driving transistor is less than the channel width of the second driving transistor.Type: GrantFiled: August 1, 2019Date of Patent: November 17, 2020Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Hsuan-Chen Liu, Chien-Ting Chan, Chung-Lin Chang
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Publication number: 20200241355Abstract: The present invention provides a display panel having a display region and a peripheral region, and the display panel includes a plurality of pixel units including at least one inner pixel unit and at least one first peripheral pixel unit, and a shielding layer. A shape of the display region is non-rectangular. The inner pixel unit is disposed in the display region and includes at least one inner sub-pixel unit. The first peripheral pixel unit is disposed in both the display region and the peripheral region and includes at least one first peripheral sub-pixel unit. At least a part of the shielding layer is disposed in the peripheral region, and the at least a part partially overlaps the first peripheral pixel unit. A structure of the first peripheral pixel unit is different from a structure of the inner pixel unit.Type: ApplicationFiled: January 16, 2020Publication date: July 30, 2020Inventors: Chung-Lin Chang, Hsuan-Chen Liu, Kun-Tsai Huang
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Patent number: 10615183Abstract: An electronic device includes a first substrate, a second substrate, a plurality of first metal line segments and a shielding layer. The second substrate is opposite to the first substrate. The first metal line segments are disposed on the first substrate and extend along a first direction, wherein at least one of the first metal line segments includes a first alignment part and a first trace part, a width of the first alignment part is larger than a width of the first trace part, and the first alignment parts are arranged along a second direction. The shielding layer is disposed on the second substrate, and the shielding layer includes a plurality of first alignment structures, wherein one of the first alignment parts is aligned with one of the first alignment structures in a normal vector of the first substrate.Type: GrantFiled: November 21, 2018Date of Patent: April 7, 2020Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Chung-Lin Chang, Hsuan-Chen Liu
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Publication number: 20200058242Abstract: A display panel includes a substrate having a display region and a peripheral region, first and second sub pixels, first and second gate driving units. The display region includes a first area having first scan lines and first sub pixels and a second area having second scan lines and second sub pixels. A portion of the first sub pixels and a portion of the second sub pixels are respectively electrically connected to the first and second scan line. The first gate driving unit includes a first driving transistor. The second gate driving unit includes a second driving transistor. The number of the first sub pixels driven by the first gate driving unit is less than the number of the second sub pixels driven by the second gate driving unit. The channel width of the first driving transistor is less than the channel width of the second driving transistor.Type: ApplicationFiled: August 1, 2019Publication date: February 20, 2020Inventors: Hsuan-Chen Liu, Chien-Ting Chan, Chung-Lin Chang
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Patent number: 10466559Abstract: A pixel structure includes a first substrate, a thin-film transistor, a second insulation layer, a first transparent conduction layer and a second substrate. The thin-film transistor includes a gate electrode formed on the first substrate, a semiconductor layer formed on the gate electrode, a first insulation layer located between the semiconductor layer and the gate electrode, and an electrode layer including a source electrode and a drain electrode. The source electrode covers a portion of the semiconductor layer. The drain electrode covers a portion of the semiconductor layer. The second insulation layer covers the thin-film transistor. The first transparent conduction layer is formed on the second insulation layer. An opening is formed in the first transparent conduction layer along a fringe of the semiconductor layer.Type: GrantFiled: September 28, 2017Date of Patent: November 5, 2019Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Hsuan-Chen Liu, Chung-Lin Chang
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Patent number: 10431552Abstract: In a display panel, multiple first alignment patterns are disposed in a non-display area on a first substrate, and each first alignment pattern includes a first portion and a second portion connected to each other. Multiple second alignment patterns are disposed in the non-display area on a second substrate, and each of the second alignment patterns includes a third portion and a fourth portion. There is a first length difference between the length of each first portion along a first direction and the length of the corresponding third portion along the first direction, and the first length differences are different from each other. There is a second length difference between the length of each second portion along a second direction and the length of the corresponding fourth portion along the second direction, and the second length differences are different from each other.Type: GrantFiled: October 9, 2018Date of Patent: October 1, 2019Assignee: HannStar Display CorporationInventors: Chung-Lin Chang, Hsuan-Chen Liu
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Publication number: 20190229066Abstract: In a display panel, multiple first alignment patterns are disposed in a non-display area on a first substrate, and each first alignment pattern includes a first portion and a second portion connected to each other. Multiple second alignment patterns are disposed in the non-display area on a second substrate, and each of the second alignment patterns includes a third portion and a fourth portion. There is a first length difference between the length of each first portion along a first direction and the length of the corresponding third portion along the first direction, and the first length differences are different from each other. There is a second length difference between the length of each second portion along a second direction and the length of the corresponding fourth portion along the second direction, and the second length differences are different from each other.Type: ApplicationFiled: October 9, 2018Publication date: July 25, 2019Inventors: Chung-Lin CHANG, Hsuan-Chen LIU
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Publication number: 20190189637Abstract: An electronic device includes a first substrate, a second substrate, a plurality of first metal line segments and a shielding layer. The second substrate is opposite to the first substrate. The first metal line segments are disposed on the first substrate and extend along a first direction, wherein at least one of the first metal line segments includes a first alignment part and a first trace part, a width of the first alignment part is larger than a width of the first trace part, and the first alignment parts are arranged along a second direction. The shielding layer is disposed on the second substrate, and the shielding layer includes a plurality of first alignment structures, wherein one of the first alignment parts is aligned with one of the first alignment structures in a normal vector of the first substrate.Type: ApplicationFiled: November 21, 2018Publication date: June 20, 2019Inventors: Chung-Lin Chang, Hsuan-Chen Liu
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Publication number: 20180307073Abstract: A pixel structure includes a first substrate, a thin-film transistor, a second insulation layer, a first transparent conduction layer and a second substrate. The thin-film transistor includes a gate electrode formed on the first substrate, a semiconductor layer formed on the gate electrode, a first insulation layer located between the semiconductor layer and the gate electrode, and an electrode layer including a source electrode and a drain electrode. The source electrode covers a portion of the semiconductor layer. The drain electrode covers a portion of the semiconductor layer. The second insulation layer covers the thin-film transistor. The first transparent conduction layer is formed on the second insulation layer. An opening is formed in the first transparent conduction layer along a fringe of the semiconductor layer.Type: ApplicationFiled: September 28, 2017Publication date: October 25, 2018Inventors: Hsuan-Chen Liu, Chung-Lin Chang
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Patent number: 9299453Abstract: A shift register and a voltage adjusting circuit and method thereof are disclosed. The voltage adjusting circuit includes a first input terminal, a second input terminal, a transistor, a first capacitor, a second capacitor, and an output terminal. The first input terminal receives a second clock signal. The second input terminal receives a fourth clock signal. The transistor has a source electrode, a drain electrode, and a gate electrode. The source electrode is coupled to ground and the gate electrode is coupled to the second input terminal. The first capacitor is coupled between the drain electrode and the first input terminal. One end of second capacitor is coupled between the first capacitor and drain electrode, and the other end of second capacitor is coupled between the second input terminal and gate electrode. The output terminal is coupled between the first capacitor and drain electrode to output an adjusted voltage.Type: GrantFiled: August 12, 2013Date of Patent: March 29, 2016Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Chien-Ting Chan, Chung-Lin Chang, Kuo-Sheng Lee
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Patent number: 9029882Abstract: An active device array substrate for saving material cost includes a substrate, scan lines, data lines, a thin film transistor, a color filter layer, a transparent conductive layer, an insulating layer and a pixel electrode. The color filter layer covers and contacts the scan lines, data lines and the thin film transistor. The transparent conductive layer is disposed on the color filter layer and electrically isolated from the scan lines, the data lines and the thin film transistor by the color filter layer. The insulating layer covers the transparent conductive layer. The pixel electrode is disposed on the insulating layer and connected to the thin film transistor.Type: GrantFiled: August 23, 2013Date of Patent: May 12, 2015Assignee: HannStar Display CorporationInventors: Chia-Hua Yu, Sung-Chun Lin, Chung-Lin Chang, Chien-Ting Chan, Hsuan-Chen Liu
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Publication number: 20150002456Abstract: A touch-sensing liquid crystal display is provided and includes a display panel and a backlight module. The display panel includes a transistor substrate, a liquid crystal layer and a common electrode. The liquid crystal layer is disposed on the transistor substrate. The common electrode is disposed on the liquid crystal layer. The transistor substrate includes data lines, scan lines, pixel units and a shield layer. The data lines are used to receive first signals. The scan lines are used to receive second signals. The pixel units include pixel electrodes and transistor switches, in which the transistor switches are electrically connected to the data lines, the scan lines and the pixel electrodes. The shield layer is disposed between the pixel electrodes and the transistor switches. The backlight module is disposed on the display panel, in which the liquid crystal layer is sandwiched between the shield layer and the backlight module.Type: ApplicationFiled: May 16, 2014Publication date: January 1, 2015Applicant: HannStar Display CorporationInventors: Chia-Hua YU, Sung-Chun LIN, Chung-Lin CHANG, Chien-Ting CHAN, Hsuan-Chen LIU
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Publication number: 20140252381Abstract: An active device array substrate for saving material cost includes a substrate, scan lines, data lines, a thin film transistor, a color filter layer, a transparent conductive layer, an insulating layer and a pixel electrode. The color filter layer covers and contacts the scan lines, data lines and the thin film transistor. The transparent conductive layer is disposed on the color filter layer and electrically isolated from the scan lines, the data lines and the thin film transistor by the color filter layer. The insulating layer covers the transparent conductive layer. The pixel electrode is disposed on the insulating layer and connected to the thin film transistor.Type: ApplicationFiled: August 23, 2013Publication date: September 11, 2014Applicant: HannStar Display CorporationInventors: Chia-Hua YU, Sung-Chun LIN, Chung-Lin CHANG, Chien-Ting CHAN, Hsuan-Chen LIU
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Publication number: 20140198277Abstract: A liquid crystal display includes a bottom substrate, at least one thin film transistor, an overcoat layer, a bottom common electrode, at least one pixel electrode and a liquid crystal layer. The thin film transistor is disposed on the bottom substrate, including a gate electrode, a source electrode and a drain electrode. The overcoat layer is disposed above the thin film transistor. The bottom common electrode is disposed on the overcoat layer. The pixel electrode is disposed above the bottom common electrode and electrically connected to the drain electrode. The liquid crystal layer is disposed above the pixel electrode.Type: ApplicationFiled: April 17, 2013Publication date: July 17, 2014Applicant: HannStar Display Corp.Inventors: Chia-Hua Yu, Sung-Chun Lin, Chung-Lin Chang, Chien-Ting Chan, Hsuan-Chen Liu, Chun-Chin Tseng