TWI696168B - Display control system and a local digital gain controller thereof - Google Patents

Display control system and a local digital gain controller thereof Download PDF

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TWI696168B
TWI696168B TW108122898A TW108122898A TWI696168B TW I696168 B TWI696168 B TW I696168B TW 108122898 A TW108122898 A TW 108122898A TW 108122898 A TW108122898 A TW 108122898A TW I696168 B TWI696168 B TW I696168B
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image data
spatial
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digital gain
control system
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TW202101418A (en
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黃昭禎
吳東穎
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奇景光電股份有限公司
承景科技股份有限公司
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Abstract

A local digital gain controller includes a digital gain control unit that receives input image data and obtains enhanced image data; a sub-pixel coordinate determining unit that receives composing colors data of the input image data and obtains coordinates thereof; a spatial gain unit that generates spatial gains of the composing colors data according to the coordinates; and a multiplier that generates compensated image data by multiplying the enhanced image data by the corresponding spatial gain.

Description

顯示控制系統及其區域數位增益控制器Display control system and its area digital gain controller

本發明係有關一種適用於液晶顯示器的顯示控制系統，特別是關於一種區域數位增益控制器。The invention relates to a display control system suitable for a liquid crystal display, in particular to an area digital gain controller.

液晶顯示器(LCD)為平板(flat-panel)顯示器的一種，其使用液晶分子以控制調變光線的強度，以顯示影像。液晶顯示器可適用於各種的電子裝置，例如電視、電腦、行動電話等，可應用於室內或室外的場合。A liquid crystal display (LCD) is a type of flat-panel display that uses liquid crystal molecules to control the intensity of modulated light to display images. The liquid crystal display can be applied to various electronic devices, such as televisions, computers, mobile phones, etc., and can be used indoors or outdoors.

液晶顯示器包含矩陣排列的複數像素，分別由控制元件(例如薄膜電晶體(TFT))控制影像的顯示。然而，由於元件的電性或光學的製造變異(variation)，會形成亮度的不均勻(non-uniform brightness)，造成部分像素較亮或較暗的不均勻痕跡(mura)現象。The liquid crystal display includes a plurality of pixels arranged in a matrix, and a control element (such as a thin film transistor (TFT)) controls the display of images, respectively. However, due to variations in the electrical or optical manufacturing of the device, non-uniform brightness may be formed, resulting in a mura phenomenon in which some pixels are brighter or darker.

為了改善此種顯示不均勻現象，一般會使用去痕跡(de-mura)機制。傳統液晶顯示器的去痕跡機制係事先使用感測技術以決定不均勻位置與相關參數，再使用記憶體預先儲存這些感測得到的資料，作為補償參數，稱為痕跡圖像(mura map)。於影像顯示之前，擷取痕跡圖像，據以對影像資料進行補償，再將經補償的影像資料顯示於液晶顯示器的相應像素位置。In order to improve such display unevenness, a de-mura mechanism is generally used. The trace removal mechanism of the traditional liquid crystal display is to use sensing technology to determine the uneven position and related parameters in advance, and then use the memory to store these sensing data in advance as compensation parameters, called a mura map. Before the image is displayed, the trace image is captured to compensate for the image data, and then the compensated image data is displayed at the corresponding pixel position of the LCD.

除了不均勻痕跡(mura)現象，液晶顯示器通常還會具有不均勻色溫(non-uniform color temperature)現象。第一A圖例示簡化的液晶顯示器的像素，第一B圖至第一D圖例示第一A圖之部分像素的色溫曲線。根據這些色溫曲線可以得知，位於不同位置之像素具有不同的色溫特性，因而造成空間上的色彩差異(spatial color difference)。In addition to the phenomenon of unevenness (mura), liquid crystal displays usually also have a phenomenon of non-uniform color temperature. The first figure A illustrates a pixel of a simplified liquid crystal display, and the first figure B to the first D illustrate color temperature curves of some pixels in the first figure A. According to these color temperature curves, it can be known that pixels located at different positions have different color temperature characteristics, thus causing a spatial color difference.

因此亟需提出一種新穎的顯示控制機制，以改善液晶顯示器之色溫的均勻度。Therefore, there is an urgent need to propose a novel display control mechanism to improve the uniformity of the color temperature of the liquid crystal display.

鑑於上述，本發明實施例的目的之一在於提出一種顯示控制系統，其具有區域數位增益控制器，可有效補償液晶顯示器之空間上的色彩差異，用以提升色溫的均勻度。In view of the above, one of the objects of the embodiments of the present invention is to provide a display control system with a regional digital gain controller, which can effectively compensate for the spatial color difference of the liquid crystal display and improve the uniformity of color temperature.

根據本發明實施例，區域數位增益控制器包含數位增益控制單元、次像素座標決定單元、空間增益值單元及乘法器。數位增益控制單元接收輸入影像資料，以得到增強影像資料。次像素座標決定單元接收輸入影像資料的複數組成色彩資料，據以得到該些組成色彩資料的座標。空間增益值單元根據座標以分別產生該些組成色彩資料的空間增益值。乘法器將增強影像資料乘以相應的空間增益值，以產生補償影像資料。According to an embodiment of the present invention, the regional digital gain controller includes a digital gain control unit, a sub-pixel coordinate determination unit, a spatial gain value unit, and a multiplier. The digital gain control unit receives input image data to obtain enhanced image data. The sub-pixel coordinate determination unit receives a plurality of component color data of the input image data, and accordingly obtains the coordinates of the component color data. The spatial gain value unit generates the spatial gain values of the color data according to the coordinates, respectively. The multiplier multiplies the enhanced image data by the corresponding spatial gain value to generate compensated image data.

第二圖顯示本發明實施例之液晶顯示器100的系統方塊圖。在本實施例中，液晶顯示器100可包含顯示面板11，其可包含排列為矩陣形式的複數像素。本實施例之液晶顯示器100可包含閘極驅動器(又稱為掃描驅動器)12，用以依序開啟顯示面板11的至少一列像素。液晶顯示器100可包含源極驅動器(又稱為資料驅動器)13，用以產生影像資料的相應電壓至顯示面板11，以顯示影像於顯示面板11。液晶顯示器100可包含時序控制器(TCON)14，用以控制閘極驅動器12及源極驅動器13。The second figure shows a system block diagram of the liquid crystal display 100 according to an embodiment of the invention. In this embodiment, the liquid crystal display 100 may include the display panel 11, which may include a plurality of pixels arranged in a matrix. The liquid crystal display 100 of this embodiment may include a gate driver (also called a scan driver) 12 for sequentially turning on at least one row of pixels of the display panel 11. The liquid crystal display 100 may include a source driver (also referred to as a data driver) 13 for generating corresponding voltages of image data to the display panel 11 to display images on the display panel 11. The liquid crystal display 100 may include a timing controller (TCON) 14 for controlling the gate driver 12 and the source driver 13.

第三圖顯示本發明實施例之顯示控制系統200的系統方塊圖，適用於液晶顯示器，用以提升色溫的均勻度。在一實施例中，顯示控制系統200可設於第二圖之液晶顯示器100的時序控制器14中，但不限定於此。The third figure shows a system block diagram of the display control system 200 according to an embodiment of the present invention, which is suitable for a liquid crystal display and used to improve the uniformity of color temperature. In one embodiment, the display control system 200 may be provided in the timing controller 14 of the liquid crystal display 100 of the second figure, but it is not limited thereto.

在本實施例中，顯示控制系統200可包含區域數位增益控制器(local digital gain controller)21，其接收輸入影像資料，用以進行空間上的補償，以得到補償影像資料。上述之輸入影像資料包含複數組成色彩資料，例如紅色(R)、綠色(G)、藍色(B)資料。顯示控制系統200可包含抖動(dithering)單元22，其接收並對(區域數位增益控制器21的)補償影像資料進行抖動(dithering)信號處理，因而產生紅色(R)、綠色(G)、藍色(B)的輸出影像資料。In this embodiment, the display control system 200 may include a local digital gain controller 21, which receives input image data for spatial compensation to obtain compensated image data. The above-mentioned input image data includes complex color data, such as red (R), green (G), and blue (B) data. The display control system 200 may include a dithering unit 22 that receives and performs dithering signal processing on the compensated image data (of the regional digital gain controller 21), thereby generating red (R), green (G), blue Color (B) output image data.

第四圖顯示第三圖之顯示控制系統200的詳細方塊圖。第五圖例示第四圖之顯示控制系統200的相關影像資料。舉例而言，位於(100,100)之輸入影像資料包含紅色(R)資料R(100,100)、綠色(G)資料G(100,100)、藍色(B)資料B(100,100)。在本實施例中，區域數位增益控制器21可包含數位增益控制(digital gain control, DGC)單元211，其接收輸入影像資料(的該些組成色彩資料(例如R、G、B資料))，以得到增強影像資料。在一實施例中，數位增益控制(DGC)單元211可包含查表(lookup table)，如第六A圖所例示，據以得到輸入影像資料相應的增強影像資料。舉例而言，如第五圖所例示，輸入影像資料的紅色(R)資料R(100,100)為128，經數位增益控制(DGC)單元211的查表後可得到增強影像資料的紅色(R)資料R(100,100)為512。增強影像資料的其他組成色彩資料(例如綠色(G)資料G(100,100)、藍色(B)資料B(100,100))也可依相同原則得到。The fourth diagram shows a detailed block diagram of the display control system 200 of the third diagram. The fifth diagram illustrates related image data of the display control system 200 of the fourth diagram. For example, the input image data at (100,100) includes red (R) data R (100,100), green (G) data G (100,100), and blue (B) data B (100,100). In this embodiment, the regional digital gain controller 21 may include a digital gain control (digital gain control, DGC) unit 211, which receives input image data (the component color data (such as R, G, B data)), To get enhanced image data. In one embodiment, the digital gain control (DGC) unit 211 may include a lookup table, as illustrated in FIG. 6A, to obtain enhanced image data corresponding to the input image data. For example, as illustrated in the fifth figure, the red (R) data R (100, 100) of the input image data is 128, and the red (R) of the enhanced image data can be obtained after the table lookup by the digital gain control (DGC) unit 211 The data R(100,100) is 512. The other component color data of the enhanced image data (such as green (G) data G (100, 100) and blue (B) data B (100, 100)) can also be obtained according to the same principle.

本實施例之區域數位增益控制器21可包含次像素(sub-pixel)座標決定單元212，其接收輸入影像資料(的該些組成色彩資料(例如R、G、B資料))，據以得到該些組成色彩資料的座標。The regional digital gain controller 21 of this embodiment may include a sub-pixel coordinate determination unit 212, which receives input image data (the component color data (such as R, G, and B data)) to obtain These constitute the coordinates of the color data.

根據本實施例的特徵之一，區域數位增益控制器21可包含空間增益值(spatial gain)單元213，其根據次像素座標決定單元212所得到的座標，據以分別產生該些組成色彩資料(例如R、G、B資料)的空間增益值。在本實施例中，空間增益值單元213可包含空間增益值查表(lookup table)，據以得到該些組成色彩資料(例如R、G、B資料)之座標相應的空間增益值。第六B圖、第六C圖、第六D圖分別例示紅色(R)資料、綠色(G)資料、藍色(B)資料的空間增益值查表。在一實施例中，空間增益值單元213可包含記憶裝置，例如靜態隨機存取記憶體(SRAM)、動態隨機存取記憶體(DRAM)或快閃記憶體(flash)，用以儲存空間增益值查表。According to one of the features of this embodiment, the regional digital gain controller 21 may include a spatial gain unit 213 that generates the component color data according to the coordinates obtained by the sub-pixel coordinate determination unit 212 ( For example, R, G, B data) spatial gain value. In this embodiment, the spatial gain value unit 213 may include a spatial gain value lookup table to obtain the spatial gain values corresponding to the coordinates of the component color data (such as R, G, and B data). Figures 6B, 6C, and 6D respectively illustrate the spatial gain value look-up tables of red (R) data, green (G) data, and blue (B) data. In one embodiment, the space gain value unit 213 may include a memory device, such as static random access memory (SRAM), dynamic random access memory (DRAM), or flash memory, for storing space gain Value lookup table.

本實施例之區域數位增益控制器21可包含乘法器214，用以將(數位增益控制(DGC)單元211之)增強影像資料乘以(空間增益值單元213之)相應的空間增益值，以產生補償影像資料。舉例而言，如第五圖所例示，增強影像資料的紅色(R)資料R(100,100)為512，相應的空間增益值為1.1，兩者相乘後可得到補償影像資料的紅色(R)資料R(100,100)為563(=512x1.1)。補償影像資料的其他組成色彩資料(例如綠色(G)資料G(100,100)、藍色(B)資料B(100,100))也可依相同原則得到。The regional digital gain controller 21 of this embodiment may include a multiplier 214 for multiplying the enhanced image data (of the digital gain control (DGC) unit 211) by the corresponding spatial gain value (of the spatial gain value unit 213) to Generate compensated image data. For example, as illustrated in the fifth figure, the red (R) data R(100,100) of the enhanced image data is 512, and the corresponding spatial gain value is 1.1. After the two are multiplied, the red (R) of the compensated image data can be obtained The data R(100,100) is 563(=512x1.1). The other component color data of the compensated image data (such as green (G) data G (100, 100) and blue (B) data B (100, 100)) can also be obtained according to the same principle.

區域數位增益控制器21所產生的補償影像資料經抖動單元22的抖動信號處理後，可得到輸出影像資料。舉例而言，如第五圖所例示，補償影像資料的紅色(R)資料R(100,100)為563，經抖動單元22的抖動信號處理後，可得到輸出影像資料的紅色(R)資料R(100,100)為141。輸出影像資料的其他組成色彩資料(例如綠色(G)資料G(100,100)、藍色(B)資料B(100,100))也可依相同原則得到。The compensated image data generated by the regional digital gain controller 21 is processed by the dithering signal of the dithering unit 22 to obtain output image data. For example, as illustrated in the fifth figure, the red (R) data R (100, 100) of the compensated image data is 563, and after processing the dithering signal of the dithering unit 22, the red (R) data R (R) of the output image data can be obtained 100,100) is 141. The other component color data of the output image data (such as green (G) data G (100, 100) and blue (B) data B (100, 100)) can also be obtained according to the same principle.

以上所述僅為本發明之較佳實施例而已，並非用以限定本發明之申請專利範圍；凡其它未脫離發明所揭示之精神下所完成之等效改變或修飾，均應包含在下述之申請專利範圍內。The above are only the preferred embodiments of the present invention and are not intended to limit the scope of the patent application of the present invention; all other equivalent changes or modifications made without departing from the spirit of the invention should be included in the following Within the scope of patent application.

100:液晶顯示器 11:顯示面板 12:閘極驅動器 13:源極驅動器 14:時序控制器 200:顯示控制系統 21:區域數位增益控制器 211:數位增益控制單元 212:次像素座標決定單元 213:空間增益值單元 214:乘法器 22:抖動單元 100: LCD display 11: Display panel 12: Gate driver 13: source driver 14: Timing controller 200: display control system 21: Regional digital gain controller 211: Digital gain control unit 212: Sub-pixel coordinate determination unit 213: Spatial gain value unit 214: Multiplier 22: Jitter unit

第一A圖例示簡化的液晶顯示器的像素。 第一B圖至第一D圖例示第一A圖之部分像素的色溫曲線。 第二圖顯示本發明實施例之液晶顯示器的系統方塊圖。 第三圖顯示本發明實施例之顯示控制系統的系統方塊圖。 第四圖顯示第三圖之顯示控制系統的詳細方塊圖。 第五圖例示第四圖之顯示控制系統的相關影像資料。 第六A圖例示第四圖之數位增益控制單元的查表。 第六B圖、第六C圖、第六D圖分別例示紅色(R)資料、綠色(G)資料、藍色(B)資料的空間增益值查表。 The first figure A illustrates a pixel of a simplified liquid crystal display. The first picture B to the first picture D illustrate the color temperature curves of some pixels in the first picture A. The second figure shows a system block diagram of a liquid crystal display according to an embodiment of the invention. The third figure shows a system block diagram of a display control system according to an embodiment of the invention. The fourth figure shows the detailed block diagram of the display control system of the third figure. The fifth figure illustrates the relevant image data of the display control system of the fourth figure. The sixth diagram A illustrates a look-up table of the digital gain control unit of the fourth diagram. Figures 6B, 6C, and 6D respectively illustrate the spatial gain value look-up tables of red (R) data, green (G) data, and blue (B) data.

200:顯示控制系統 200: display control system

21:區域數位增益控制器 21: Regional digital gain controller

211:數位增益控制單元 211: Digital gain control unit

212:次像素座標決定單元 212: Sub-pixel coordinate determination unit

213:空間增益值單元 213: Spatial gain value unit

214:乘法器 214: Multiplier

22:抖動單元 22: Jitter unit

Claims (9)

一種區域數位增益控制器，包含：一數位增益控制單元，接收輸入影像資料，以得到增強影像資料；一次像素座標決定單元，接收該輸入影像資料的複數組成色彩資料，據以得到該些組成色彩資料的座標；一空間增益值單元，根據該座標以分別產生該些組成色彩資料的空間增益值；及一乘法器，用以將該增強影像資料乘以相應的該空間增益值，以產生補償影像資料。 A regional digital gain controller includes: a digital gain control unit that receives input image data to obtain enhanced image data; a pixel coordinate determination unit that receives a plurality of component color data of the input image data to obtain the component colors The coordinates of the data; a spatial gain value unit to generate the spatial gain values of the component color data according to the coordinates; and a multiplier to multiply the enhanced image data by the corresponding spatial gain values to generate compensation video material. 根據申請專利範圍第1項所述之區域數位增益控制器，其中該數位增益控制單元包含一查表，據以得到輸入影像資料相應的增強影像資料。 According to the regional digital gain controller described in item 1 of the patent application scope, wherein the digital gain control unit includes a look-up table to obtain enhanced image data corresponding to the input image data. 根據申請專利範圍第1項所述之區域數位增益控制器，其中該空間增益值單元包含一空間增益值查表，據以得到該些組成色彩資料之座標相應的空間增益值。 According to the regional digital gain controller described in item 1 of the patent application scope, wherein the spatial gain value unit includes a spatial gain value look-up table to obtain the spatial gain values corresponding to the coordinates of the color data. 根據申請專利範圍第3項所述之區域數位增益控制器，其中該空間增益值單元包含記憶裝置，用以儲存該空間增益值查表。 According to the regional digital gain controller described in item 3 of the patent application range, wherein the spatial gain value unit includes a memory device for storing the spatial gain value look-up table. 一種顯示控制系統，包含：一區域數位增益控制器，接收輸入影像資料，用以進行空間上的補償，以得到補償影像資料；及一抖動單元，接收並對該補償影像資料進行抖動信號處理，以產生輸出影像資料；其中該區域數位增益控制器包含： 一數位增益控制單元，接收該輸入影像資料，以得到增強影像資料；一次像素座標決定單元，接收該輸入影像資料的複數組成色彩資料，據以得到該些組成色彩資料的座標；一空間增益值單元，根據該座標以分別產生該些組成色彩資料的空間增益值；及一乘法器，用以將該增強影像資料乘以相應的該空間增益值，以產生該補償影像資料。 A display control system includes: a regional digital gain controller that receives input image data for spatial compensation to obtain compensated image data; and a dithering unit that receives and performs dither signal processing on the compensated image data, To generate output image data; the digital gain controller of the area includes: A digital gain control unit receives the input image data to obtain enhanced image data; a pixel coordinate determination unit receives the complex color data of the input image data to obtain the coordinates of the color data; a spatial gain value The unit generates the spatial gain values of the color data separately according to the coordinates; and a multiplier is used to multiply the enhanced image data by the corresponding spatial gain values to generate the compensated image data. 根據申請專利範圍第5項所述之顯示控制系統，其中該數位增益控制單元包含一查表，據以得到輸入影像資料相應的增強影像資料。 According to the display control system described in item 5 of the patent application scope, wherein the digital gain control unit includes a look-up table to obtain enhanced image data corresponding to the input image data. 根據申請專利範圍第5項所述之顯示控制系統，其中該空間增益值單元包含一空間增益值查表，據以得到該些組成色彩資料之座標相應的空間增益值。 According to the display control system described in item 5 of the patent application scope, wherein the spatial gain value unit includes a spatial gain value look-up table to obtain the spatial gain values corresponding to the coordinates of the color data. 根據申請專利範圍第7項所述之顯示控制系統，其中該空間增益值單元包含記憶裝置，用以儲存該空間增益值查表。 The display control system according to item 7 of the patent application scope, wherein the spatial gain value unit includes a memory device for storing the spatial gain value look-up table. 根據申請專利範圍第5項所述之顯示控制系統，其中該顯示控制系統設於一顯示器的時序控制器中。 The display control system according to item 5 of the patent application scope, wherein the display control system is provided in a timing controller of a display.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200629227A (en) * 2004-12-14 2006-08-16 Samsung Electronics Co Ltd Display device and driving method thereof
TWI408669B (en) * 2009-08-13 2013-09-11 Novatek Microelectronics Corp Liquid crystal display and method for image-dithering compensation
US20170169758A1 (en) * 2015-12-11 2017-06-15 Samsung Display Co., Ltd. Display device and method of compensating for color deflection thereof
TWI637381B (en) * 2015-12-24 2018-10-01 美商施耐普特拉克股份有限公司 Display incorporating dynamic saturation compensating gamut mapping

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200629227A (en) * 2004-12-14 2006-08-16 Samsung Electronics Co Ltd Display device and driving method thereof
TWI408669B (en) * 2009-08-13 2013-09-11 Novatek Microelectronics Corp Liquid crystal display and method for image-dithering compensation
US20170169758A1 (en) * 2015-12-11 2017-06-15 Samsung Display Co., Ltd. Display device and method of compensating for color deflection thereof
TWI637381B (en) * 2015-12-24 2018-10-01 美商施耐普特拉克股份有限公司 Display incorporating dynamic saturation compensating gamut mapping

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